CRL NETWORK SERVICES INC
S-1/A, 1999-05-20
BUSINESS SERVICES, NEC
Previous: ZIPLINK INC, 8-A12G, 1999-05-20
Next: NATIONAL EQUITY TRUST LOW FIVE PORTFOLIO SERIES 25, 487, 1999-05-20



<PAGE>   1
 
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 20, 1999.
    
 
                                                      REGISTRATION NO. 333-74793
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                            ------------------------
   
                                AMENDMENT NO. 4
    
                                       TO
 
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                           CRL NETWORK SERVICES, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                              <C>                              <C>
            DELAWARE                         NO. 4813                        68-0312353
    (STATE OF INCORPORATION)       (PRIMARY STANDARD INDUSTRIAL            (IRS EMPLOYER
                                   CLASSIFICATION CODE NUMBER)         IDENTIFICATION NUMBER)
</TABLE>
 
                         ONE KEARNY STREET, SUITE 1450
                        SAN FRANCISCO, CALIFORNIA 94108
                                 (415) 837-5300
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                 JAMES G. COUCH
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                         ONE KEARNY STREET, SUITE 1450
                        SAN FRANCISCO, CALIFORNIA 94108
                                 (415) 837-5300
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
 
   
                                   COPIES TO:
 
<TABLE>
<S>                                              <C>
             KENNETH R. LAMB, ESQ.                             NORA L. GIBSON, ESQ.
             LISA A. FONTENOT, ESQ.                          PETER S. BUCKLAND, ESQ.
             PATRICK L. WONG, ESQ.                           TAYLOR L. STEVENS, ESQ.
          GIBSON, DUNN & CRUTCHER LLP                      PATRICK J. O'LOUGHLIN, ESQ.
      ONE MONTGOMERY STREET, TELESIS TOWER               BROBECK, PHLEGER & HARRISON LLP
        SAN FRANCISCO, CALIFORNIA 94104                   ONE MARKET, SPEAR STREET TOWER
                                                         SAN FRANCISCO, CALIFORNIA 94105
</TABLE>
    
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
   As soon as practicable after the Registration Statement becomes effective.
 
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.  [ ]
 
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement of the same offering.  [ ]
 
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
     If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
 
   
                        CALCULATION OF REGISTRATION FEE
    
 
   
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------------------
                                                       PROPOSED MAXIMUM     PROPOSED MAXIMUM
    TITLE OF EACH CLASS OF          AMOUNT TO BE        OFFERING PRICE     AGGREGATE OFFERING        AMOUNT OF
  SECURITIES TO BE REGISTERED        REGISTERED          PER SHARE(1)           PRICE(1)        REGISTRATION FEE(2)
- -------------------------------------------------------------------------------------------------------------------
<S>                              <C>                  <C>                  <C>                  <C>
Common Stock, $.0001 par
  value........................       6,727,500             $15.00            $100,912,500            $28,054
- -------------------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
   
(1) Estimated solely for purposes of calculating the registration fee.
    
 
   
(2) Calculated pursuant to Rule 457(a), $22,240 of this amount has been
    previously paid.
    
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SECTION 8(a), MAY
DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
   
                   SUBJECT TO COMPLETION, DATED MAY 20, 1999
    
 
THE INFORMATION CONTAINED IN THIS PRELIMINARY PROSPECTUS IS NOT COMPLETE AND MAY
BE CHANGED. THESE SECURITIES MAY NOT BE SOLD UNTIL THE REGISTRATION STATEMENT
FILED WITH THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PRELIMINARY
PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN
OFFER TO BUY THESE SECURITIES IN ANY STATE JURISDICTION WHERE THE OFFER OR SALE
IS NOT PERMITTED.
 
PROSPECTUS
 
                                      LOGO
                           CRL NETWORK SERVICES, INC.
 
                                  COMMON STOCK
 
                               $       PER SHARE
 
- --------------------------------------------------------------------------------
 
This is the initial public offering of CRL Network Services, Inc. We are
offering 5,000,000 shares and a stockholder identified in this prospectus is
offering 850,000 shares. We will not receive any of the proceeds from the sale
of shares of our common stock by the selling stockholder. This is a firm
commitment underwriting.
 
We expect that the price to the public in the offering will be between $12.00
and $15.00 per share. The market price of the shares after the offering may be
higher or lower than the offering price.
 
We have applied to have the common stock approved for quotation on the Nasdaq
National Market under the symbol "CRLX."
 
   
INVESTING IN THE COMMON STOCK INVOLVES MATERIAL RISKS. SEE "RISK FACTORS"
BEGINNING ON PAGE 5.
    
 
<TABLE>
<CAPTION>
                                                                      PER SHARE     TOTAL
                                                                      ---------    -------
        <S>                                                           <C>          <C>
        Price to Public.............................................   $           $
        Underwriting discounts......................................
        Proceeds to CRL Network Services, Inc.......................
        Proceeds to the selling stockholder.........................
</TABLE>
 
- --------------------------------------------------------------------------------
 
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
<TABLE>
<S>                                            <C>
      Joint Lead Manager and Bookrunner                 Joint Lead Manager
             CIBC WORLD MARKETS                           LEHMAN BROTHERS
</TABLE>
 
   
             The undersigned is facilitating Internet distribution
    
 
   
                                 DLJdirect INC.
    
 
           The date of this prospectus is                     , 1999.
<PAGE>   3
 
                              [INSIDE FRONT COVER]
 
 [Graphic depicts a map of United States entitled "Networks Built for Business"
   with the CRL logo, reflecting CRL's network connecting cities nationwide,
  including symbols designating CRL's Regional Hubs, CRL Points of Presence or
        Service Areas, Internet Protocol Backbone and Switched Backbone]
<PAGE>   4
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Prospectus Summary..........................................    1
Risk Factors................................................    5
How We Intend to Use the Proceeds from the Offering.........   22
Dividend Policy.............................................   22
Capitalization..............................................   23
Dilution....................................................   24
Selected Consolidated Financial Data........................   25
Management's Discussion and Analysis of Results of
  Operations and Financial Condition........................   26
Business....................................................   35
Management..................................................   56
Principal and Selling Stockholders..........................   63
Description of Capital Stock................................   64
Shares Eligible for Future Sale.............................   67
Underwriting................................................   69
Legal Matters...............................................   71
Experts.....................................................   71
Where You Can Find More Information.........................   71
Index to Financial Statements...............................  F-1
</TABLE>
    
 
                                        i
<PAGE>   5
 
                               PROSPECTUS SUMMARY
 
This summary contains basic information about us and this offering. Because it
is a summary, it does not contain all of the information that you should
consider before investing. You should read this entire prospectus carefully,
including the section entitled "Risk Factors" and the financial statements and
the related notes to those statements included in this prospectus. This
prospectus assumes that the underwriters have not exercised the over-allotment
option and gives effect to our reincorporation in Delaware and the associated
exchange of one share of common stock of CRL for every three shares of common
stock of CRL's California predecessor.
 
                           CRL NETWORK SERVICES, INC.
 
   
CRL Network Services is a Tier 1 Internet service provider offering customized
Internet and network management solutions to small and medium-sized businesses.
As a Tier 1 provider we can be characterized as having a high quality, national
backbone network which can reach every other Internet destination through
agreements to exchange data, known as peering, without paying transit fees to
other network operators. We provide high quality, reliable and scalable Internet
and network connectivity and value-added services designed to meet our
customers' needs. Our services include:
    
 
   
  - connectivity to the Internet and secure private networks through our
    national backbone network from which our Internet access customers can reach
    every other Internet address and our network customers can reach other
    destinations within their private network.
    
 
   
  - value-added services, which are services delivered over the same circuit as
    our connectivity services in addition to those services. Our current
    value-added services are remote management of our customers' networks and
    systems integration, which includes the resale, installation and
    configuration of our customers' computer systems and software.
    
 
   
  - hosting, which is the distribution of customers' Internet content from our
    facilities.
    
 
   
Our customers outsource the management of their Internet and network needs to
us. We develop and construct our data switched networks and perform all data
routing and transmission for our customers. We lease fiber-optic capacity from
third-party providers over which we transmit data and peer with other
telecommunications providers to exchange data traffic.
    
 
   
We believe we were among the first companies involved in the development of
connectivity solutions and services for the commercial Internet. We have
developed our own high speed network, which enables us to reliably and cost
effectively deliver customized, comprehensive solutions. Our competitive
strengths include our:
    
 
  - engineering and technical expertise arising from our direct participation in
    the evolution of the commercial Internet, which has enabled us to develop
    our own sophisticated network infrastructure
 
   
  - high speed, private switched network, which means it relies on our own
    switches which enables us to maximize our quality of service by reducing
    delay and data loss as well as increasing the level of security
    
 
   
  - status as a Tier 1 provider, which resulted from being one of the first
    commercial Internet providers and, which allows us to exchange data directly
    with other Tier 1 providers without paying transit fees, reducing the costs
    of operating our network
    
 
  - our proprietary network management process, acquired through our recent
    merger with Integral Networking Corporation in December 1998, which enables
    us to connect directly to our customer's network and manage our customer's
    network from the server to the desktop without the need to be on-site at our
    customer's facilities, which we refer to as remote management
 
                                        1
<PAGE>   6
 
   
As of May 14, 1999, we had 30 network equipment centers located in major
metropolitan areas from which we deliver our services. Our network connects to
all of the interexchange points sanctioned by the National Science Foundation
for the transfer of Internet Protocol-based traffic between Internet backbone
networks. Our network is comprised of several elements, including 23 Cascade
switches, 54 Cisco routers, facilities and clear channel fiber-optic bandwidth,
which together provide a fast, secure, high quality network capable of
minimizing outages resulting from hardware or software faults. Our customers
include Internet service and content providers like Internet America, Inc. and
Walnut Creek CDROM, Incorporated; companies engaged in electronic commerce like
Citizen One Software; government agencies like the U.S. Federal Reserve Board
and the U.S. Department of Commerce; and educational institutions like the
Pacific Union College and the Tustin Unified School District.
    
 
Our objective is to become the leading nationwide provider of customized
comprehensive Internet and network services to small and medium-sized
businesses. To achieve this objective, we intend to:
 
   
  - FURTHER CAPITALIZE ON OUR EXISTING NETWORK INFRASTRUCTURE. We intend to
    utilize our status as a Tier 1 Internet service provider and competitive
    local exchange carrier in California as well as our fast, secure, reliable
    and scalable network to cost effectively expand our customer base and
    deliver additional services to our customers.
    
 
  - CROSS SELL VALUE-ADDED SERVICES. We intend to capitalize on our existing
    customer base and future customers by aggressively cross selling our current
    and future value-added services to address their Internet and other network
    management requirements.
 
  - PROVIDE BUNDLED, COMPREHENSIVE NETWORKING SOLUTIONS. By combining our
    network infrastructure with our existing and planned array of networking
    services, we believe we are well positioned to become one of the premier,
    comprehensive providers of bundled networking solutions.
 
  - EXPAND CUSTOMER BASE AND SALES EFFORTS. We believe we will be able to
    successfully market and sell our comprehensive networking solutions to a
    large national customer base by significantly increasing our direct sales
    force and expanding our relationships with potential channel partners.
 
  - DRIVE REVENUE GROWTH BY INCREASING HOSTING SERVICES. We intend to optimize
    our physical presence and facilities located at key Internet network access
    points, which provide an attractive opportunity for us to market and sell
    hosting services to existing and potential customers.
 
  - ACCELERATE GROWTH THROUGH TARGETED ACQUISITIONS. We intend to seek
    acquisition candidates that we believe we can integrate with our existing
    network to increase our customer base or provide additional value-added
    services. In this regard, we recently acquired Integral Networking
    Corporation, which enables us to provide our remote management services.
                            ------------------------
 
Our principal executive offices are located at One Kearny Street, Suite 1450,
San Francisco, California 94108, and our telephone number at that address is
(415) 837-5300.
 
This prospectus contains product names, trade names and trademarks that belong
to us or to other organizations.
 
                                        2
<PAGE>   7
 
                                  THE OFFERING
 
Common stock offered by us....    5,000,000 shares
 
Common stock offered by the
selling stockholder...........      850,000 shares
 
   
Common stock to be outstanding
after the offering(1).........   24,038,832 shares
    
 
Use of proceeds by CRL Network
  Services....................   We intend to use the net proceeds from the sale
                                 of common stock offered by us to repay
                                 indebtedness totaling $1,088,000 as of March
                                 31, 1999, for working capital and other general
                                 corporate purposes, including expansion of our
                                 sales and marketing activities. We may also use
                                 a portion of the net proceeds for acquisitions.
                                 We will not receive any proceeds from the sale
                                 of the common stock offered by the selling
                                 stockholder. See "How We Intend to Use the
                                 Proceeds from the Offering."
 
Proposed Nasdaq National
Market symbol.................   CRLX
 
Risk Factors..................   See "Risk Factors" for a discussion of factors
                                 you should carefully consider before deciding
                                 to invest in our common stock.
- -------------------------
   
(1)  Based on 19,038,832 shares outstanding on May 14, 1999, which excludes
     946,320 shares issuable upon exercise of currently outstanding options with
     a weighted average exercise price of $2.20 per share and 2,000,000 shares
     available for the grant of additional options under our 1999 Stock
     Incentive Plan. See "Management -- Stock Options."
    
 
                                        3
<PAGE>   8
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
 
The summary consolidated financial data as of December 31, 1998 and for the
years ended December 31, 1996, 1997 and 1998 are calculated from our audited
consolidated statements included in this prospectus. The summary consolidated
financial data for the years ended December 31, 1994 and 1995 and for the three
months ended March 31, 1998 and 1999 are calculated from unaudited consolidated
financial statements not included in this prospectus. The unaudited financial
statements have been prepared by us on a basis consistent with our audited
consolidated financial statements and include, in the opinion of our management,
all adjustments consisting only of normal recurring adjustments necessary for a
fair presentation of our results of operations and financial position for those
years.
 
You should read the following data with the more detailed information contained
in "Selected Consolidated Financial Data," "Management's Discussion and Analysis
of Financial Condition and Results of Operations" and our consolidated financial
statements and the notes to the consolidated financial statements, each included
in this prospectus.
 
   
<TABLE>
<CAPTION>
                                                                                    THREE MONTHS ENDED
                                              YEAR ENDED DECEMBER 31,                    MARCH 31,
                                  -----------------------------------------------   -------------------
                                   1994      1995      1996      1997      1998       1998       1999
                                  -------   -------   -------   -------   -------   --------   --------
                                                  (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                     (UNAUDITED)                                        (UNAUDITED)
<S>                               <C>       <C>       <C>       <C>       <C>       <C>        <C>
STATEMENT OF OPERATIONS DATA:
  Revenues......................  $ 1,961   $ 3,831   $ 6,353   $10,375   $11,692   $ 2,981    $ 3,003
  Total costs and expenses......    1,555     3,184     6,043     8,904    11,726     2,694      3,525
  Operating income (loss).......      406       647       310     1,471       (34)      287       (522)
  Net interest income
     (expense)..................       (1)        1         1         5       (30)       (1)       (22)
  Net income (loss).............      248       437       161       885      (151)      203       (387)
  Net income (loss) per common
     share basic and diluted....  $  0.01   $  0.02   $  0.01   $  0.05   $ (0.01)  $  0.01    $ (0.02)
  Weighted average common shares
     outstanding:
     Basic......................   18,979    18,979    18,979    18,979    18,979    18,979     18,979
     Diluted....................   18,979    18,979    18,979    19,142    18,979    19,283     18,979
</TABLE>
    
 
The following table indicates a summary of our balance sheet at March 31, 1999,
which has been adjusted to reflect the sale of 5,000,000 shares of common stock
offered by us after deducting underwriting discounts and commissions and
estimated offering expenses at an assumed initial public offering price of
$13.50 per share and the repayment of the amounts outstanding under our loan
agreements. See "How We Intend to Use the Proceeds from the Offering."
 
<TABLE>
<CAPTION>
                                                                    AT MARCH 31, 1999
                                                                  ---------------------
                                                                  ACTUAL    AS ADJUSTED
                                                                  ------    -----------
    <S>                                                           <C>       <C>
    BALANCE SHEET DATA:
      Cash and equivalents......................................  $  354      $60,981
      Working capital...........................................     229       61,106
      Total assets..............................................   4,522       64,635
      Total liabilities.........................................   2,998        1,426
      Long-term obligations, excluding current portion..........     822           14
      Stockholders' equity......................................   1,524       63,209
</TABLE>
 
- -------------------------
 
See notes 1 and 12 of the notes to the consolidated financial statements
included in this prospectus for an explanation of the determination of the
number of shares used in computing per share data.
 
                                        4
<PAGE>   9
 
                                  RISK FACTORS
 
   
You should carefully consider the risks described below before making an
investment decision. The risks and uncertainties described below are the
material risks currently known to us but not the only risks facing us. These
risk factors are not intended to represent a complete list of the general or
specific risk factors that may affect us as additional risks and uncertainties
not presently known to us or that we currently deem immaterial may also impair
our business operations. If any of the following risks actually occur, our
business, financial condition or results of operations could be materially
adversely affected. If that happens, the trading price of our common stock could
decline, and you may lose all or part of your investment.
    
 
THE SUCCESS OF OUR GROWTH STRATEGY DEPENDS ON OUR ABILITY TO MARKET AND SELL OUR
EXISTING AND FUTURE SERVICES.
 
   
Historically, our business has focused on selling Internet and other network
connection services. A critical component to the successful implementation of
our growth strategy is our ability to offer and expand our value-added services
and the acceptance of those services by our existing and potential customers.
Our future growth depends, in part, on the acceptance and use of remote
management and systems integration services by small and medium-sized
businesses. Until our December 1998 merger with Integral Networking Corporation,
we had very little experience in either of these markets and to date have
derived insignificant revenues from services in these markets. In particular,
the market for remote management services is new, making it difficult to
determine the size and growth of the market and to predict how this market will
develop. Changes in technology, the availability of qualified information
technology professionals and other factors that make internal network management
more cost effective than remote network management, would negatively impact the
market for our services. Our business may be seriously damaged if this market
fails to grow, grows more slowly than we expect or develops in some way that is
different from our expectations. We are also actively seeking to develop or
acquire a variety of other services we can offer and cross sell. In addition, we
recently began offering digital subscriber line services but have generated no
revenues from these services. For many reasons, including the reasons described
in the risk factors below, we cannot assure you that we will be successful in
developing or acquiring those or any other services or, that if we do, we will
be successful in marketing and selling those services to our existing or
potential customers.
    
 
   
OUR OPERATING RESULTS IN ONE OR MORE FUTURE PERIODS ARE LIKELY TO FLUCTUATE
SIGNIFICANTLY.
    
 
   
We expect to experience significant fluctuations in our future quarterly and
annual results of operations due in part to our growth strategy and the emerging
nature of the data communications industry in our markets. A variety of factors
likely to cause fluctuations in our operating results, some of which are outside
our control, include:
    
 
  - demand for and market acceptance of our services
 
  - capacity utilization of our facilities
 
  - fluctuations in data communications and telecommunications costs
 
  - reliable continuity of service and network availability
 
  - customer retention
 
  - the timing and success of sales and marketing efforts
 
  - the timely expansion of existing facilities and completion of new facilities
 
  - the ability to increase bandwidth as necessary
 
  - fluctuations in bandwidth used by customers
 
                                        5
<PAGE>   10
 
  - the timing and magnitude of expenditures for sales and marketing and capital
    expenditures
 
  - introductions of new services or enhancements by us and our competitors
 
  - the timing of customer installations and related payments
 
  - the ability to maintain or increase peering relationships
 
  - increased competition including the introduction by third parties of new
    Internet and network services
 
  - general growth of Internet use and establishment of Internet operations by
    enterprises
 
  - changes in our pricing policies and those of our competitors
 
  - changes in regulatory laws and policies
 
  - the success of our acquisition strategy
 
  - the timing and amount of charges related to acquisitions
 
  - economic conditions specific to the Internet and networking industry
 
   
Our expenses, particularly our telecommunications costs, depreciation, real
estate expenditures and personnel costs are expected to increase significantly
as we grow. Of our total costs and expenses, these costs comprise 73% of our
total costs for 1998 and 71% of our total costs for the first quarter of 1999.
We anticipate that such costs will continue to constitute a similar or higher
percentage of our total costs over the next twelve months. As we grow, we may
also incur one-time costs associated with capital expenditures for network and
facilities growth, acquisition expenses and development of our existing and new
service offerings. In addition, we are in the process of hiring new employees.
Consequently, our future results of operations will be particularly sensitive to
fluctuations in revenues. Over the next five years, we will record an expense of
approximately $739,000 related to some of our option grants. For more
information about these charges, see "Management's Discussion and Analysis of
Financial Conditions and Results of Operations."
    
 
   
For the year ended December 31, 1998 and for the three months ended March 31,
1999, we experienced operating losses for the first time in our operating
history due in part to increased sales and marketing and general and
administrative expenses, and the incurrence of stock-based compensation expense.
In addition, our revenue increase from the year ended December 31, 1997 to the
year ended December 31, 1998 was less than we have experienced in previous
years. If our revenues fail to grow at anticipated rates, our operating expenses
increase without a commensurate increase in our revenues or we fail to adjust
operating expense levels accordingly, our business and financial results could
be harmed.
    
 
   
We anticipate that we will continue to incur net losses for the foreseeable
future. The extent of these losses will be contingent, in part, on the amount of
growth in our revenues, particularly from new service offerings. We expect our
operating expenses to increase significantly, especially in the areas of sales
and marketing, and, as a result, we will need to generate increased quarterly
revenues to become profitable.
    
 
   
Due to the factors listed above and the other risk factors described in this
section of the prospectus, we believe that comparisons of our results of
operations are not necessarily meaningful and should not be relied upon as
indications of future performance. As a result, the fluctuation of our results
of operations in future periods could cause the trading price of our common
stock to suffer a significant decrease.
    
 
WE MAY NOT SUCCESSFULLY IMPLEMENT OUR ACQUISITION STRATEGY.
 
As part of our growth strategy, we will seek strategic acquisitions of
additional assets, technologies and businesses complementary to our operations.
We may not be able to locate suitable acquisition targets or be able to acquire
any target companies we locate on acceptable terms. Our recent merger with
Integral
 
                                        6
<PAGE>   11
 
Networking Corporation is, and any future acquisitions would be, accompanied by
risks including, among other things:
 
  - loss of customers and key personnel of an acquired company
 
  - inability to achieve cost savings
 
  - acquisition expenses and charges incurred
 
  - difficulties integrating the operations and personnel of acquired companies
 
  - additional financial resources that may be needed to fund the combined
    company operations
 
  - the potential disruption of our business
 
  - our management's ability to realize financial and strategic benefits of
    incorporating acquired technologies or businesses into our service offerings
 
  - difficulty of maintaining uniform quality control and other standards,
    policies and procedures in a larger organization
 
  - impairment of employee relationships due to changes in management or
    perceived conflicts
 
  - assumption of unexpected liabilities and incurrence of significant
    unexpected expenses in completing acquisitions
 
   
Any of the above risks could prevent us from realizing significant benefits from
our acquisitions. In connection with our merger with Integral, we experienced a
loss of Integral personnel, incurred unanticipated costs and required greater
than expected management attention to establish and maintain uniform quality
control, standards and policies. In addition, issuing our common stock in
acquisitions will dilute our stockholders' percentage interests in our company,
while using cash will deplete our cash reserves. Finally, if we are unable to
account for our acquisitions under the "pooling of interests" method of
accounting, we may incur significant, one-time write-offs and amortization
charges for acquisition or debt-related expenses, goodwill and other intangible
assets. These write-offs and charges would decrease our future earnings or
increase our future losses and could hurt the trading price of our common stock.
    
 
THE MARKETS FOR OUR SERVICES ARE CHARACTERIZED BY MANY COMPETING TECHNOLOGIES,
AND THE TECHNOLOGIES ON WHICH OUR SERVICES ARE BASED MAY NOT COMPETE
EFFECTIVELY.
 
The markets for the network connectivity services we provide are extremely
competitive and fragmented. There are no substantial barriers to entry in these
markets, and we expect that competition will intensify in the future. We believe
that our ability to compete successfully depends upon a number of factors,
including:
 
  - the capacity, reliability, low delay and security of our network
    infrastructure
 
  - our ability to maintain existing and develop future peering relationships
 
  - our technical expertise and the functionality, performance and quality of
    services
 
  - our ability to provide custom solutions for our customers
 
  - the experience and technical expertise of our sales force and engineers
 
  - the ease of access to our services
 
  - our remote management capabilities
 
  - the pricing policies of our competitors and suppliers
 
  - our ability to operate as a competitive local exchange carrier
 
  - our ability to scale our services to meet growing customer demand
 
                                        7
<PAGE>   12
 
  - the variety of services we offer
 
  - our geographical presence
 
  - the timing of introductions of new services by us and our competitors
 
  - the responsiveness and quality of our customer support
 
  - our financial resources
 
  - our ability to support industry standards
 
To be competitive, we must respond promptly and effectively to the challenges of
technological change, evolving standards and our competitors' innovations by
continuing to enhance our services, as well as our sales programs and channels.
Any pricing pressures, reduced margins or loss of market share resulting from
increased competition or our failure to compete effectively, could seriously
damage our business and financial results.
 
THE MARKETS IN WHICH WE COMPETE ARE HIGHLY COMPETITIVE, AND WE MAY NOT BE ABLE
TO COMPETE EFFECTIVELY, ESPECIALLY AGAINST COMPANIES WITH GREATER RESOURCES.
 
   
Many of our competitors have greater market presence, engineering and marketing
capabilities and financial, technological and personnel resources than those
available to us. As a result, they may develop, deploy and expand their
communications and network infrastructures more quickly, adapt more swiftly to
new technologies and changes in customer requirements, take advantage of
acquisition and other opportunities more readily and devote greater resources to
the marketing and sale of their services than we can. Additionally, many
organizations have entered into or are forming joint ventures or consortiums to
provide services competitive with ours.
    
 
Our competitors generally may be divided into four principal groups:
 
   
  - telecommunications carriers including regional Bell operating companies
    
 
  - Internet service providers
 
  - network and system integrators
 
  - online network service providers
 
We believe the market for network management services will be highly competitive
if it grows as we expect. Competition will probably increase significantly as
new companies enter the market and current competitors expand their services and
product lines. Many potential competitors are likely to enjoy substantial
competitive advantages, including those listed above. As a result, our existing
and potential customers may contract with other competitive communications
providers, decreasing demand for CRL's services. For a list of our principal
competitors, see "Business -- Competition."
 
OUR BUSINESS MAY BE HARMED IF NEW COMPETITORS ENTER OUR MARKETS.
 
   
We believe that new competitors will enter our markets. These new competitors
could include large computer hardware, software, media and other technology and
telecommunications companies. A large number of companies with short operating
histories have entered the markets for the services we offer as these markets,
some of which are in an emerging state, develop. In addition, telecommunications
companies and online services providers currently offer or have announced plans
to offer or expand their network services. These telecommunications companies
and online services providers are able to devote greater resources to developing
and marketing competitive products and services. In addition, they often have
the ability to bundle other services and products with their Internet services,
such as voice and video communications, placing us at a competitive disadvantage
because we do not currently offer some of these services. Other companies are
also exploring the possibility of providing or are currently providing high
speed data services using alternative delivery methods that could be faster or
less expensive, decreasing customer demand for CRL's services. As new
competitors enter our markets, they sometimes offer special
    
 
                                        8
<PAGE>   13
 
promotions to attract customers, such as free Internet access or computers,
which could adversely impact our ability to attract or retain customers.
Increased competition from new competitors could negatively affect our business
and financial results.
 
WE MAY HAVE TO REDUCE THE COST OF OUR SERVICES TO REMAIN COMPETITIVE.
 
   
Increased competition and industry consolidation has in the past and could in
the future result in significant pricing pressure. This pricing pressure could
cause large reductions in the average selling price of our services and has
resulted in a general industry decrease in the prices for the services we
provide. For example, telecommunications companies that compete with us may
provide customers with reduced communications costs for their Internet access or
private network services, reducing the overall cost of their solutions and
significantly increasing pricing pressures on us. Combined Internet services and
access companies can bundle their offerings and remain profitable at lower price
levels while realizing economies of scale. As a result, we have experienced
pricing pressures on our connectivity offerings, including our T-1 and
fractional T-1 services, have lowered prices on a case-by-case basis and have
introduced new lower price products. We may not be able to offset the effects of
any price reductions by increasing the number of our customers, generating
higher revenues from enhanced services, reducing cost, or by obtaining approvals
to operate as a competitive local exchange carrier. We believe that the
businesses of providing network connectivity, value-added network services and
hosting services will likely see increased consolidation in the future.
Consolidation could decrease selling prices and increase competition in these
industries which could erode our market share and could have a material negative
effect on our business and financial results.
    
 
WE DEPEND ON OUR NETWORK INFRASTRUCTURE AND OTHER SUPPLIERS TO PROVIDE
AFFORDABLE, RELIABLE, SCALABLE AND SECURE SERVICES.
 
   
Our success will depend upon our network infrastructure's capacity, scalability,
reliability and security, including the bandwidth capacity leased from
telecommunications network suppliers. In particular, we rely on Metropolitan
Fiber Systems, IXC Communications, Inc., Qwest Communications Corporation, Cable
& Wireless USA, Inc. and other telecommunications providers for backbone and
local loop capacity. These companies provide our dedicated clear channel
network, the backbone connecting our wide area data switches. These companies
also permit our networks to exchange Internet traffic with other Internet
service providers and distribute our services to our customers. We depend on the
ability of those companies to maintain the operational integrity of our backbone
and interconnections. If one or more of these companies is unable or unwilling
to provide or expand its current levels of service to us in the future, our
operations could be seriously and adversely affected. Most of our agreements
with these companies are for a one-year term with renewal options. These
agreements do not require minimum commitments and are on an as used basis. While
these companies have additional capacity available, they are under no obligation
under these agreements to provide it to us. We estimate that Qwest
Communications Corporation, IXC Communications, Inc. and MCI WorldCom, Inc.
provide approximately three-quarters of our bandwidth. In addition, rapid
changes within the telecommunications industry have led to the merging of many
telecommunications companies. These mergers have and in the future may further
cause the pricing we receive for the services we use and the quality of service
that we receive to vary significantly. The consolidation of companies providing
Internet services and access has and can result in preferential provision of
services to acquired companies and potential targets or business partners and
could cause the length of time it takes to deliver the telecommunications
services that we use to increase significantly.
    
 
We are currently in a dispute with Qwest Communications Corporation, one of our
three principal providers, involving fiber cable they own connecting several
cities. Qwest agreed to lease fiber to us to be installed and available to us by
specified dates. Qwest did not complete installation as agreed. Despite their
failure to install the fiber in a timely manner, Qwest alleges that we owe them
approximately $479,000 through March 31, 1999 for use of the fiber cable. We
believe Qwest is obligated to provide us with free service as a result of this
installation delay. We are currently attempting to resolve this dispute by
 
                                        9
<PAGE>   14
 
negotiation. We cannot assure you that the dispute will be resolved to our
satisfaction or that Qwest will not suspend service, potentially resulting in an
interruption of service.
 
WE DEPEND ON OUR RELATIONSHIPS WITH TELECOMMUNICATIONS CARRIERS TO PROVIDE OUR
DATA COMMUNICATIONS CAPACITY.
 
   
We rely on local telephone companies and other companies to provide data
communications capacity via local telecommunications lines and leased long
distance lines. These arrangements are generally terminable at will or are for a
short term. We are also subject to potential disruptions or capacity constraints
in these telecommunications services and may have no means of replacing these
services on a timely basis or at all if disruption or capacity constraints
occur. In addition, local phone service is sometimes available only from one
local telephone company in a particular market we serve. We compete with those
regional Bell operating companies and other network operators providing Internet
services. Telecommunications carriers may be able to provide both Internet
services and data communications capacity at a lower rate than what we can
offer. Some telecommunications carriers have provided Internet access services
comparable to those provided by CRL at lower rates than CRL's prices. We believe
that the federal Telecommunications Act of 1996 generally will lead to increased
competition in the provision of local telephone service, but we cannot predict
the timing or extent of any such developments or the effect of increased
competition on pricing or supply. Some of our suppliers, including the regional
Bell operating companies and competitive local exchange carriers, are subject to
price constraints, including tariff controls, which in the future may change.
Recent regulatory changes and industry consolidation may increase the prices
that these carriers may charge us. Those increases may have a serious and
negative effect on our business and financial results.
    
 
WE DEPEND ON OUR PEERING RELATIONSHIPS AND TIER 1 STATUS TO DELIVER OUR SERVICES
ECONOMICALLY.
 
The Internet consists of many network providers operating their own networks and
interconnecting them at a number of public and private peering points, through
peering arrangements with one another. Our peering relationships, which allow us
to maintain high network performance levels without paying higher non-peered
transit costs to exchange traffic, are not regulated, are rarely subject to any
written agreement, and are subject to revision in terms, conditions or costs
over time. Network service providers may unilaterally elect at any time not to
maintain peering relationships with us which could increase requirements or
costs to maintain these peering relationships. A loss of any of these
relationships, the failure of our peering partners to increase bandwidth
commensurate to increased data traffic or increased pricing would diminish the
level of connectivity available to our customers or cause us to incur additional
operating expenses by requiring us to identify alternative methods to transmit
our customers' information and to pay for transit. No economical alternatives
may be available if that happens.
 
Many operators of the private peering interexchanges are also our competitors.
As a result, these competitors may cancel their peering relationships if they
find that the benefits of having a peering relationship with us are outweighed
by competitive conditions in our business.
 
   
OUR FAILURE TO PROPERLY MANAGE OUR BUSINESS EXPANSION MAY STRAIN OR EXCEED OUR
RESOURCES OR COULD HARM OUR BUSINESS.
    
 
   
Our company has recently experienced significant business expansion as seen in
the number of new hires, its recent merger with Integral and the expansion of
our service offerings and facilities. Continued growth is necessary to increase
our revenues in the accelerated manner contemplated by our business plan.
    
 
   
In particular, to successfully integrate newly acquired assets and continue to
implement a nationwide growth strategy and network, we must:
    
 
  - closely monitor service quality
 
  - increase our direct and indirect sales and marketing efforts
 
                                       10
<PAGE>   15
 
  - continue to implement and improve our operational, financial and management
    information systems and controls
 
   
  - hire, train and retain a relatively large number of additional qualified
    personnel
    
 
  - continue to expand and upgrade our network infrastructure
 
We must continue to enhance and develop our network to maintain our competitive
position and continue to meet the increasing demands for service quality,
availability and competitive pricing. Despite the availability of additional
network capacity from third-party network providers, we intend to maintain the
flexibility to expand or open new points of presence or make other capital
investments as dictated by customer demand or strategic considerations. To open
new points of presence, we must spend significant amounts of money for new
equipment and leased telecommunications facilities. In addition, to expand our
customer base nationwide, we will likely have to spend significant amounts of
money on additional equipment to maintain the high speed and reliability of our
Internet and other network access services.
 
   
We intend to begin consolidation of our San Francisco administrative and network
operations in one or more new, larger facilities during the third quarter of
1999 and to complete the consolidation in the fourth quarter of 1999. We are
still negotiating the location of this new site or sites. We also anticipate
completing the expansion of our Sacramento operations center by the end of the
fourth quarter of 1999. We expect management of the transition of our
information systems, personnel and operational equipment to new facilities to
place additional strain on our resources. This transition may not be completed
successfully or on a timely basis and may require a significant amount of
management's attention and could cause interruptions in our operations which
could harm our business.
    
 
Our increasing customer base necessitates that our network infrastructure and
technical support resources grow accordingly. We cannot assure you that our
technical support or other resources will be sufficient to facilitate our
growth. We are striving to increase total network utilization and to optimize
this utilization throughout a 24 hour period. There will be additional demands
on our customer support, sales and marketing resources as we pursue this
utilization strategy. If we fail to manage our growth effectively, our business
and financial results will be seriously adversely affected.
 
OUR SUCCESS WILL DEPEND ON THE INTEGRATION OF OUR NEW MANAGEMENT PERSONNEL.
 
We recently hired several of our executives, including our Vice President of
Business Development, our Executive Vice President/Chief Financial Officer and
Vice President of Direct Sales. As a result, our management team has worked
together for only a brief time, and may have a limited understanding of our
specific business. Our ability to effectively execute our strategies will depend
in part upon our ability to integrate these and future managers into our
operations. We also plan to hire additional executive management personnel,
including a Vice President of Marketing, Vice President of Operations and Vice
President of Engineering. If our executives do not integrate effectively, our
business could be materially negatively affected.
 
OUR SUCCESS WILL DEPEND ON THE CONTINUED PERFORMANCE OF OUR KEY PERSONNEL.
 
   
Our success depends in significant part upon the continued services of our
senior management and key technical and sales personnel, currently consisting of
our Executive Vice President and Chief Financial Officer, our Vice President of
Direct Sales, our Vice President of Business Development, our Vice President of
Finance, our Vice President of Channel Sales, Integral's President, our
Directors of Marketing and Systems Engineering and our National Sales Director
and particularly our President and Chief Executive Officer, James Couch. We do
not maintain key man insurance on the life of Mr. Couch or any other executive
officers. Any of our officers or employees can terminate his or her relationship
with us at any time. Only Mr. Couch and Robert Ross, the President of our
subsidiary, Integral Networking Corporation, have employment agreements for
specified terms with us. For more information about Messrs. Ross' and Couch's
employment agreements, see "Management -- Employment Agreements." The loss of
key personnel would materially negatively impact our business and financial
results.
    
 
                                       11
<PAGE>   16
 
OUR SUCCESS WILL DEPEND ON ATTRACTING AND RETAINING ADDITIONAL PERSONNEL.
 
   
Approximately half of our current employees joined CRL within the past 12 months
and our growth strategy necessitates that we more than double the number of our
employees during the next 24 months. Our success depends upon our ability to
attract and retain additional highly qualified management, technical, sales and
marketing and customer support personnel. Locating personnel with the
combination of skills and attributes required to carry out our strategy is often
a lengthy process. Our future growth particularly depends upon our ability to
increase substantially the size of our sales and marketing organization. The
market for highly qualified technical and sales and marketing personnel is
intensely competitive, especially in the San Francisco Bay Area, where a
substantial portion of our operations are located. In the year ended December
31, 1998, we experienced a reduction in our sales force due to a number of
factors including normal attrition and our involvement in negotiations in the
second and third quarters of 1998 relating to potential business combinations
with companies possessing established sales forces. We believe our involvement
in these negotiations caused a higher attrition rate for our sales staff than we
have historically experienced. These negotiations also caused us to postpone our
efforts to hire additional and replace lost sales staff. We may not be
successful in meeting our hiring goals. Our inability to attract additional,
qualified personnel or to retain existing personnel would have a material
adverse effect on our business and financial results.
    
 
OUR NETWORK SYSTEM COULD FAIL, AND WE MAY BE UNABLE TO PROVIDE OUR SERVICES.
 
   
Network expansion and growth in usage will increase stress upon our network
hardware and traffic management systems. Our network has been designed with
redundant backbone circuits which means that we connect each of our network
switches together through the use of both primary and secondary backbone
circuits. These backbone circuits are generally data circuits purchased from
long distance data carriers. The secondary backbone circuit provides an
alternate method for two switches to reroute data should the primary backbone
circuit between them fail. The secondary backbone circuit permits our network to
respond to an unexpected hardware or software failure without a complete outage.
However, we could experience failures relating to individual network points of
presence or even catastrophic failure of the entire network. Our operations
depend on our ability to protect our network infrastructure against damage from
power loss, telecommunications failures and similar events such as damage from
human error or sabotage, acts of nature, power failures and telecommunications
failures. A significant portion of our computer equipment, including critical
equipment dedicated to our Internet access services and our switches and routers
that serve large areas of the United States, are located at our facilities in
San Francisco, Palo Alto and Los Angeles, California and Vienna, Virginia. Our
network operations center, which manages the entire network, is in San
Francisco, California. At each site, we maintain off-site backups for our
network configurations in case a natural disaster occurs. We do not, however,
have a comprehensive disaster recovery program in place. In the past,
unanticipated problems outside of our control have caused service interruptions.
During a major power outage in the San Francisco Bay Area on December 8, 1998
lasting over six hours, our network continued to operate but prevented some
dial-up customers from logging on to our network and caused an outage in one of
our switches, resulting in a fluctuation in service for a brief period. Also, in
the fourth quarter of 1998, a portion of our network was interrupted for part of
a day as a result of substantial flooding in the state of Texas. A natural
disaster, such as an earthquake, or other unanticipated problem at the network
operations center, at one of our hubs, sites where routers, switches and other
computer equipment that make up the backbone of our network infrastructure are
located, or at a number of our points of presence in the future could cause,
interruptions in our services, including a complete loss of operations. In
addition, our services could be interrupted if our telecommunications providers
fail to provide the data communications capacity in the time frame we require as
a result of a natural disaster or for some other reason. Any damage or failure
that causes interruptions in our operations could have a material adverse effect
on our business and financial results.
    
 
                                       12
<PAGE>   17
 
IF OUR NETWORK SYSTEM FAILS, WE COULD BE LIABLE TO OUR CUSTOMERS FOR DAMAGES.
 
We could incur significant warranty obligations in connection with system
downtime. Our customer contracts for several of our services currently provide a
limited service warranty related to the continuous availability of service on a
24 hour-a-day, seven day-a-week basis, except for scheduled maintenance periods.
This warranty is generally limited to a credit of free service for a specified
limited period of time for disruptions in Internet transmission services. Our
customer contracts provide for our liability for personal injury or equipment
damage in only limited circumstances. Although these customer contracts
typically provide for no recovery with respect to incidental, punitive, indirect
and consequential damages resulting from damages to equipment or disruption of
service, we cannot assure you that we would not be found liable if these damages
occurred or that these damages would be covered by or would not exceed our
liability insurance.
 
   
WE FACE THE RISK OF FUNDAMENTAL CHANGES IN THE WAY ELECTRONIC DATA, INCLUDING
INTERNET ACCESS, IS DELIVERED.
    
 
   
Internet services are currently accessed primarily by computers connected by
telephone lines. Several companies have announced the development and sales of
digital subscriber lines, cable television modems, wireless modems and satellite
modems to provide Internet access. We believe that our competitors offering
Internet access using Cable TV can provide access for up to ten megabits per
second, those using satellite, up to two megabits per second and those using
wireless modems, up to 1.544 megabits per second. Our competitors are also
continually developing technology to offer Internet access using alternate
delivery methods at higher speeds. While we are capable of offering similar
speeds through the equipment we currently use, we currently generally do not and
likely will not be able to offer such speeds as cheaply as cable or wireless
modems. For example, wireless modems may reduce the cost of network services as
they are capable of delivering data, including Internet access, without
incurring local loop charges, which are charges by the local telephone companies
for use of their lines. As the Internet becomes more accessible through these
cable television, wireless and satellite modems and by screen based telephones,
televisions or other consumer electronic devices, or customer requirements
change the way Internet access is provided, we will have to develop new
technology or modify our existing technology to accommodate these new
developments. We may also have to modify how we deliver our services. Our
pursuit of these technological advances may require substantial time and
expense, and we may not succeed in adapting our Internet access business to
alternate access devices and conduits.
    
 
OUR SUCCESS DEPENDS ON THE CONTINUED GROWTH OF THE INTERNET.
 
Our success will depend in large part on continued growth in Internet use, which
in turn will depend on a variety of factors including security, reliability,
cost, ease of access, quality of service and necessary increases in bandwidth
availability. Many of our existing and proposed services target Internet users.
Increased Internet use for retrieving, sharing and transferring information
among businesses, consumers, suppliers and partners only recently began to
develop. As is typical in the case of a new and rapidly evolving industry
characterized by rapidly changing technology, evolving industry standards and
frequent new product and service introductions, demand and market acceptance for
recently introduced products and services is highly uncertain. In addition,
critical issues concerning the commercial use of the Internet remain unresolved
and may impact the growth of Internet use, especially in the business market we
target. Despite growing interest in commercial Internet uses, many businesses
have not purchased Internet access and other related services for a number of
reasons, including:
 
  - inconsistent quality of service
 
   
  - lack of availability of cost effective, high speed options
    
 
  - a limited number of points of presence for corporate users
 
  - inability to integrate business applications on the Internet
 
  - the need to use multiple and frequently incompatible vendors
                                       13
<PAGE>   18
 
  - inadequate protection of the confidentiality of stored data and information
    moving across the Internet
 
  - a lack of tools to simplify Internet access and use
 
  - increased risk that third parties may obtain unauthorized access to
    confidential information
 
  - concerns arising from the year 2000 problem
 
Individuals and enterprises historically relying upon alternative means of
commerce and communication must understand and accept a new way of conducting
business and exchanging information to adopt the Internet for their means of
commerce and communication. Enterprises with substantial resources invested in
other means of commerce and exchanging information may be particularly reluctant
or slow to adopt a new strategy that may make their existing personnel and
infrastructure obsolete.
 
OUR SUCCESS DEPENDS ON THE CONTINUED ACCEPTANCE OF THE INTERNET AS A VIABLE
COMMERCIAL MEDIUM.
 
Demand for and market acceptance of the Internet are highly uncertain and depend
on a number of factors, including growth in consumer access to and acceptance of
new interactive technologies, the development of technologies facilitating
interactive communication between organizations and targeted audiences, and
increases in user bandwidth. If the Internet as a commercial or business medium
fails to develop or develops more slowly than expected, our business would be
materially adversely affected. The recent growth in Internet use has caused
frequent periods of performance degradation, requiring the upgrade of routers
and switches, telecommunications links and other components forming the
Internet's infrastructure by Internet service providers, operators of
interexchange points and other organizations with links to the Internet. Any
perceived degradation in the Internet's performance could undermine the benefits
of our services. Potentially increased performance provided by our services and
others is ultimately limited by and reliant upon the speed and reliability of
the networks operated by third parties. Consequently, the emergence and growth
of the market for our services depends on improvements being made to the entire
Internet infrastructure to alleviate overloading and congestion.
 
WE MUST KEEP UP WITH RAPID TECHNOLOGICAL CHANGE AND EVOLVING INDUSTRY STANDARDS
TO COMPETE EFFECTIVELY IN OUR MARKETS.
 
The markets for our services are characterized by rapidly changing technology,
evolving industry standards, changes in customer needs, rapidly growing
competition and frequent new product and service introductions. Our future
success will depend, in part, on our ability to:
 
  - effectively use and offer leading technologies
 
  - continue to develop our technical expertise
 
  - enhance our current networking services
 
  - develop new products and services that meet changing customer needs
 
  - advertise and market our services
 
  - influence and respond to emerging industry standards and other technological
    changes
 
   
We must accomplish these tasks in a timely and cost effective manner. New
technologies or industry standards may replace or provide lower cost
alternatives to our existing products and services or could render our existing
products and services obsolete and unmarketable. We also believe that our
ability to compete successfully depends on the continued compatibility and
interoperability of our services with products and architectures offered by
other vendors. Although we intend to support emerging standards in the market
for Internet and other network connectivity, new industry standards could
emerge, and we may not be able to conform to these new standards in a timely
fashion and maintain a competitive position in the market. Our pursuit of
necessary technological advances and maintenance of technological compatibility
may require substantial time and expense.
    
 
                                       14
<PAGE>   19
 
   
WE MAY HAVE PROBLEMS MAINTAINING HIGH QUALITY STANDARDS.
    
 
Market acceptance of new or enhanced services could be significantly delayed or
hindered if we introduce services with reliability or compatibility problems.
Despite testing by us or our customers, our services or enhancements may contain
undetected errors or defects when first introduced after commencement of
commercial deployment. Any problems or delays could adversely affect our ability
to attract or retain customers.
 
In the past we have experienced shortages in bandwidth capacity, both at the
level of particular points of presence affecting only those customers using that
particular point of presence and with system-wide services such as e-mail and
news group services. In early 1999, we neared full capacity for our connections
with MAE West. The primary carriers from whom we purchased bandwidth also filled
capacity at MAE West. As a result, we were required to wait approximately 60
days while our providers acquired additional capacity, which limited our ability
to add more customers on those connections. A similar shortage in bandwidth
occurred at MAE East in 1998 and, as a result, we lost one customer. If we do
not maintain sufficient bandwidth capacity in our network connections, or
insufficient bandwidth is maintained on the networks operated by our peering
partners, our customers will experience a general slowdown of all Internet
services. To protect our customers' service levels, we may sometimes temporarily
delay adding new customers in cities or regions experiencing significant
capacity constraints until we alleviate these constraints. While our objective
is to maintain excess capacity, our failure to expand or enhance our network
infrastructure on a timely basis or to adapt it to an expanding customer base,
changing customer requirements or evolving industry standards could seriously
adversely affect us.
 
   
If we do not achieve balanced network utilization over a 24 hour period, our
network could become overburdened at busy periods during the day, which could
diminish our quality of service by increased delay or system failure.
Conversely, due to the high fixed cost nature of our infrastructure, under-
utilization of our network during low use times could hinder our ability to
provide cost efficient services at other times. Any failure to achieve balanced
network utilization could harm our business, financial condition and results of
operations.
    
 
WE MAY FACE POTENTIAL LIABILITY FOR INFORMATION DISSEMINATED THROUGH OUR
NETWORK.
 
As the law relating to liability of Internet service providers for information
carried on or disseminated through their networks is not settled, we may be
subject to such liability. A number of lawsuits have sought to impose liability
for defamatory speech, indecent materials and infringement of copyrighted
materials. The United States Supreme Court has let stand a lower court ruling
that an Internet service provider was protected from liability for material
posted on its system by a provision of the Communications Decency Act. However,
the findings in that case may not apply in other circumstances. Other courts
have held that online service providers and Internet service providers may be
subject to damages for copying or distributing copyrighted materials. Provisions
of the Communications Decency Act that imposed criminal penalties for using an
interactive computer service for transmitting obscene or indecent communications
have been found unconstitutional by the United States Supreme Court. However, on
October 21, 1998, new federal legislation was enacted that requires limits on
access to pornography and other material deemed "harmful to minors." This
legislation has been challenged in court as a violation of the First Amendment
of the United States Constitution. We are unable to predict the outcome of this
case. Potential liability imposed on Internet service providers like us for
material carried on or disseminated through network systems could require us to
implement measures to reduce our exposure to that liability. These measures may
require us to spend substantial resources or discontinue certain service
offerings. Our errors and omissions insurance coverage may not be adequate or
available to compensate us for all liability that may be imposed. The imposition
of liability in excess of, or the unavailability in the future of, such coverage
could have a material adverse effect on our business or financial results.
 
                                       15
<PAGE>   20
 
WE MAY BECOME SUBJECT TO BURDENSOME AND EXPENSIVE GOVERNMENT REGULATION THAT MAY
HARM OUR BUSINESS.
 
Consistent with our growth and acquisition strategy, we are now engaged in, or
will soon be engaged in, activities that subject us to varying degrees of
federal, state and local regulation. Currently only a small body of laws and
regulations directly apply to access to or commerce on the Internet. However,
due to the Internet's increasing popularity and use, laws and regulations have
or may be proposed and may be adopted at the international, federal, state and
local levels with respect to the Internet, covering a range of issues. The
nature of any new laws and regulations and the manner in which existing and new
laws and regulations may be interpreted and enforced cannot be fully determined.
The adoption of any future laws might decrease the Internet's growth, decrease
demand for our services, impose taxes or other costly technical requirements or
otherwise increase the cost of doing business or in some other manner have a
material adverse effect on us. In addition, applicability to the Internet of
existing laws governing issues such as property ownership, copyrights and other
intellectual property issues, taxation, libel, obscenity and personal privacy is
uncertain. The application of any of these laws or regulations to our business
could increase our costs of compliance or otherwise affect our ability to
operate in those jurisdictions. In addition, as our services are available over
the Internet in multiple states, and as we facilitate sales by our customers to
end users located in such states, such jurisdictions may claim that we are
required to qualify to do business as a foreign corporation in each such state,
which may subject us to new taxes and costs.
 
Both the provisioning of Internet access service and the provisioning of
underlying telecommunications services are affected by federal, state and local
regulation. In March 1998, the California Public Utilities Commission approved
our operation as a competitive local exchange carrier in that state.
Subsequently, we negotiated an Interconnection Agreement with Pacific Bell, the
incumbent local exchange carrier in California, which was approved by the
California Public Utilities Commission in December 1998. The agreement provides
for reciprocal compensation payments for the termination of local traffic by
either party onto the other's network. While we believe that Pacific Bell will
send more traffic to our network than we will send to theirs, we cannot assure
you that this will continue, or that Pacific Bell will pay the amounts we
believe are required under the agreement. In the past, Pacific Bell has taken
the position that Internet traffic is considered inherently long distance and
not subject to reciprocal compensation. We do not believe any amounts that we
might receive as reciprocal compensation are material to our business, but we do
intend to defend our position regarding our rights to receive fair compensation
under the agreement. On February 25, 1999, the Federal Communications Commission
ruled that calls to Internet service providers for Internet access were long
distance, not local, calls. However, the ruling upheld existing reciprocal
compensation agreements in some states, including California. Because of our
reciprocal compensation agreement with Pacific Bell, we do not expect this
ruling will have a material effect on our costs in the near future. If incumbent
local exchange carriers charge fees for carrying Internet traffic and Internet
access becomes more expensive in the longer term, this ruling may have an
adverse effect on our potential future revenues as well as increase our costs.
 
We intend to apply for competitive local exchange carrier status in other
states. As we become a competitive local exchange carrier in additional states,
we will become subject to state requirements applicable to such carriers.
 
New laws or regulations relating to Internet or network services, or existing
laws found to apply to them, could have a material adverse effect on our
business or financial results. For a detailed discussion of government
regulation impacting our business, see "Business -- Government Regulation."
 
WE FACE RISKS ASSOCIATED WITH BECOMING YEAR 2000 COMPLIANT.
 
The year 2000 issue is the result of computer programs being written using two
digits rather than four to define the applicable year. As a result, date
sensitive software may recognize a date using "00" as the year 1900 rather than
the year 2000. In addition, the year 2000 is a leap year, and some computer
programs may not properly provide for February 29, 2000. System failures and
miscalculations causing disruptions of normal business activities may occur. We
are currently in the process of reviewing our
 
                                       16
<PAGE>   21
 
services, as well as our internal management information systems, in order to
identify and modify those services and systems that are not year 2000 compliant.
We do not have and are not developing a contingency plan in the event our
systems fail due to year 2000 related problems. For a detailed discussion of our
year 2000 readiness review, see "Management's Discussion and Analysis of Results
of Operations and Financial Condition -- Year 2000 Compliance Disclosure."
 
Based on our assessment to date, we believe that our internally developed
systems are year 2000 compliant. However, we utilize software and hardware
developed by third parties both for our network and internal information
systems. Additionally, we are continuing to assess the year 2000 compliance of
our services and systems.
 
   
Our services and systems operate in complex network environments and directly
and indirectly interact with a number of other hardware and software systems. We
face risks to the extent that suppliers of products, services and systems
purchased by us and others with whom we transact business, including those which
form significant portions of our network and may be sole or limited source
suppliers, do not have business systems or products that comply with year 2000
requirements. If these networks fail, our business will be significantly
impacted.
    
 
We do not currently have any information regarding the year 2000 status of our
customers, many of whom are private companies. As is the case with similarly
situated companies, if our customers experience Year 2000 problems, which result
in business interruptions or otherwise impact their operations, we could
experience a decrease in the demand for our services, which could have a
material adverse impact on our business, results of operations and financial
condition.
 
Our expectation that we will be able to upgrade our services and systems to
address the year 2000 issue and our expectation regarding the costs associated
with these upgrades are forward-looking statements subject to a number of risks
and uncertainties. Actual results may vary materially as a result of a number of
factors. We cannot assure you that we will be able to timely and successfully
modify our services and systems to comply with year 2000 requirements. Any
failure to do so could have a material adverse effect on our business, results
of operations and financial condition. Furthermore, despite testing by us and
our vendors, our services and systems may contain undetected errors or defects
in the technology associated with year 2000 date functions. In the event any
material errors or defects are not detected and fixed or third parties cannot
timely provide us with products, services or systems that meet the year 2000
requirements, on our business, results of operations and financial condition
could be materially adversely affected. Known or unknown errors or defects that
affect the operation of our services or systems could result in delay or loss of
revenues, interruption of network services, cancellation of customer contracts,
diversion of development resources, damage to our reputation, damages paid to
customers and litigation costs.
 
WE ARE SUBJECT TO THE RISKS FROM OUR LENGTHY SALES CYCLE.
 
Our customers and potential customers often take a long time to evaluate our
services. We spend a lot of time educating and providing information to our
prospective customers regarding the benefits of the Internet and our services.
Changes in the growth rate in our customer base, customer renewal rates and the
sales cycle for our services have caused, and are expected in the future to
cause, significant fluctuations in our results of operations from period to
period. In addition, we intend to significantly increase our sales and marketing
expenditures. Due to the lengthy sales cycle for our services, these expenses
will occur prior to customer commitments for our services. As a result, the
increase in our sales and marketing efforts may not result in increased sales of
our services.
 
OUR NETWORK IS SUBJECT TO SECURITY RISKS.
 
Our business depends upon the security of our network and, in part, on the
security of the network infrastructures of our third-party providers, which we
do not control. Despite implementing network security measures, the core of our
network infrastructure and our network providers' infrastructures are vulnerable
to denial of service attacks, computer viruses, break-ins and similar disruptive
problems such as
 
                                       17
<PAGE>   22
 
   
the sending of excessive volumes of unsolicited bulk e-mail, commonly referred
to as spamming, caused by our customers or other Internet or network users. In
the past, spamming has caused our mail server to overload which caused us to
delay sending our customers' e-mail until the offending spam was deleted. Denial
of service attacks, computer viruses, break-ins or other problems caused by
third parties could lead to interruptions, delays or cessation in service to our
customers, which could cause losses to us or our customers or deter businesses
from subscribing to our services. Also, the inappropriate network uses by third
parties described above could jeopardize the security of confidential
information stored in our customers' computer systems and cause commercial
transactions to be delayed, not completed or completed with compromised
security.
    
 
We may face liability and may lose existing or potential customers as a result.
Although we intend to continue to implement industry-standard security measures,
these measures occasionally have been circumvented in the past, and others may
be able to circumvent our security measures or the security measures of our
third-party network providers in the future. Eliminating computer viruses and
alleviating other security problems may require significant expenditures,
distractions to management, and interruptions, delays or cessation of service to
our customers, all of which could harm us. Further, until more comprehensive
security technologies are developed, the security and privacy concerns of
existing and potential customers may inhibit Internet service industry growth in
general and our customer base and revenues in particular.
 
WE MAY REQUIRE SUBSTANTIAL FUTURE CAPITAL TO IMPLEMENT OUR BUSINESS PLAN.
 
We anticipate that our available cash resources, combined with the net proceeds
from this offering, will be sufficient to meet our anticipated working capital
and capital expenditure requirements for the foreseeable future. However, these
resources may not be sufficient for unanticipated working capital and capital
expenditure requirements. We may need to raise additional funds through public
or private debt or equity financings to take advantage of unanticipated
opportunities, including more rapid expansion or acquisitions of complementary
businesses or technologies or to develop new products or services. Any
additional financing we may need may not be available on terms favorable to us,
or at all.
 
WE DEPEND ON THIRD PARTIES TO SUPPLY US WITH HARDWARE.
 
   
We depend on a number of third-party equipment suppliers. We purchase the
components we use to provide our networking services from third parties,
including wide area data switches supplied by Ascend Communications, Inc. and
high performance routers from Cisco Systems, Inc. The expansion of our network
infrastructure and network services places a significant demand on our
suppliers, some of which have limited resources and production capacity. We have
experienced delayed delivery from suppliers of new communications lines,
switches, routers, terminal servers and other equipment. If our suppliers cannot
adjust to meet increasing demand, the higher demand levels may prevent them from
continuing to supply components and products in the quantities, at the quality
levels and at the times we require, or at all. If we are unable to develop
alternative sources of supply, we could experience delays and increased costs in
expanding our network infrastructure.
    
 
WE DEPEND ON OUR PROPRIETARY TECHNOLOGY AND TECHNOLOGICAL EXPERTISE.
 
   
We believe our success depends more upon our technical expertise than our
proprietary rights. We rely upon a combination of copyright, trademark and trade
secret laws and contractual restrictions to protect our proprietary technology
and rights in our services. We have no patented technology that would preclude
or inhibit competitors from entering our market. We have entered into
confidentiality and invention assignment agreements with all of our employees,
and nondisclosure agreements with some of our major suppliers, distributors and
appropriate customers to control access to and disclosure of our proprietary
information. Despite these precautions, a third-party could potentially copy or
otherwise obtain and use our technology without authorization or to develop
similar technology independently. We cannot assure you that such measures have
been, or will be, adequate to protect our proprietary technology or deter third-
party development of similar technologies. We also rely on technologies that we
license from third parties
    
                                       18
<PAGE>   23
 
such as network management software. We do not license any other technology that
is not generally available. These third-party technology licenses may not always
continue to be available to us on commercially reasonable terms. The loss of
such technology could require us to obtain substitute technology of lower
quality or performance standards or at greater cost, which could affect us in a
material adverse manner. To date, we have not been notified that we infringe the
proprietary rights of third parties, but there can be no assurance that third
parties will not claim infringement by us. We expect that participants in our
markets will be increasingly subject to infringement claims as the number of
technologies and competitors in our industry grows. Any such claim, whether
meritorious or not, could be time consuming, result in costly litigation, cause
service delays or require us to enter into royalty or licensing agreements. Such
royalty or licensing agreements might not be available on terms acceptable to us
or at all. As a result, any such claim could have a material adverse effect upon
our business, results of operations and financial condition.
 
THE INTERESTS OF OUR CONTROLLING STOCKHOLDER, JAMES COUCH, MAY CONFLICT WITH OUR
AND YOUR INTERESTS.
 
After completion of this offering, James Couch will own approximately 66.8% of
our outstanding common stock, 63.3% if the underwriters' over-allotment option
is exercised in full and sold by Mr. Couch, and will continue to be our
President and Chief Executive Officer and Chairman of our Board of Directors. As
a result of his stock ownership and board representation, Mr. Couch will be in a
position to affect corporate actions that could conflict with your interests and
ours. Mr. Couch will have the ability to control all matters submitted to our
stockholders for approval, including the election and removal of directors and
any merger, consolidation or sale of all or substantially all of our assets, and
to control our management and affairs. This ownership concentration may delay,
defer or prevent a change in corporate control, may impede a merger,
consolidation, takeover or other business combination involving us, or
discourage a potential acquirer from making a tender offer or otherwise
attempting to obtain control of us. These circumstances could cause the price of
our common stock to decline. See "Management" and "Principal and Selling
Stockholders."
 
   
MANAGEMENT MAY APPLY THE PROCEEDS OF THIS OFFERING TO USES THAT DO NOT INCREASE
OUR PROFITS OR MARKET VALUE.
    
 
   
Our management will have considerable discretion in the application of the net
proceeds, and you will not have the opportunity, as part of your investment
decision, to assess whether the proceeds are being used appropriately. The net
proceeds may be used for corporate purposes that do not increase our
profitability or our market value. Pending application of the proceeds, they may
be placed in investments that do not produce income or that lose value.
    
 
ANTITAKEOVER PROVISIONS COULD NEGATIVELY IMPACT OUR STOCKHOLDERS.
 
Provisions of our certificate of incorporation, bylaws and the Delaware General
Corporation Law could make it more difficult for a third party to acquire us,
even if a change of ownership would benefit our stockholders. Specifically, our
charter documents:
 
- - limit the ability to call a special meeting of our stockholders to our Board
  of Directors, the chairman of our Board and our president
 
- - prohibit any action to be taken by stockholders without a meeting
 
- - require advanced notice to be given for any business or director nominee
  brought forward at any stockholder meeting by any of our stockholders
 
- - require cause and 80% stockholder approval to remove a director
 
- - provide that our Board of Directors will be divided into three classes of
  directors, who will serve for staggered three-year terms.
 
In addition, Section 203 of the Delaware General Corporation Law generally
prohibits a 15% stockholder from engaging in any business combination with us,
including a merger or a sale of more than 10% of our
 
                                       19
<PAGE>   24
 
assets, unless our Board of Directors approves the transaction. For more
information see "Description of Capital Stock."
 
WE MAY EXPERIENCE SUBSTANTIAL SALES OF OUR COMMON STOCK AFTER THE OFFERING.
 
   
Sales of a substantial number of shares of common stock after the offering could
cause the market price of our common stock to decline and could impair our
ability to raise capital through the sale of additional equity securities. Upon
completion of this offering, we will have 24,038,832 shares of common stock
outstanding and 946,320 shares subject to currently outstanding options
exercisable at different times and 24,916,332 shares outstanding if we issue
shares upon exercise of the underwriters over-allotment option. The 5,850,000
shares sold in the offering, or 6,727,500 shares if the underwriters
over-allotment option is fully exercised, will be freely tradable without
restriction or further registration under the federal securities laws unless
purchased by our "affiliates" as that term is defined in Rule 144 under the
Securities Act. The remaining 18,188,832 shares of common stock outstanding on
completion of the offering will be "restricted securities" as that term is
defined in Rule 144.
    
 
Our stockholders and stock option holders are generally limited by lock-up
agreements restricting their ability to sell their CRL common stock. These
securityholders cannot sell or otherwise dispose of any shares of our common
stock for a period of at least 180 days after the date of this prospectus
without the prior written consent of CIBC World Markets Corp. When the lock-up
agreements expire, the shares and the shares underlying the options will be
eligible for sale, in some cases only by complying with the volume, manner and
sale notice requirements of Rule 144.
 
   
On April 27, 1999, our principal stockholder, James Couch, sold 542,888 shares
of CRL common stock to ZeroDotNet, Inc. at a price equal to $9.21 per share in a
private transaction. Mr. Thor Geir Ramleth, who has agreed to serve as a
director of CRL upon completion of this offering, is the Chief Executive Officer
and a director of ZeroDotNet, Inc. In connection with this sale, CRL granted
registration rights to the buyer, including the right to demand one registration
for at least 50% of the purchased shares at any time during the period beginning
120 days after CRL's initial public offering through the second anniversary of
CRL's initial public offering. The registration rights terminate if all the
purchased shares could be sold in one transaction under Rule 144 without
exceeding the volume limitations of that rule. In addition, if we propose to
register any of our shares of common stock under the Securities Act, the buyer
is entitled to notice of and may include the purchased shares in the
registration. If the registration involves an underwriting, the underwriters may
eliminate shares in the registration and underwriting, and the shares included
in the registration must be allocated first to CRL, then to the buyer. CRL
agreed to provide the registration rights described above in exchange for the
buyer agreeing to enter into the lock-up agreement for a period of 180 days
after the date of this prospectus. The buyer must obtain a waiver of the lock-up
agreement to exercise the registration rights described above during the 180 day
period of the lock-up.
    
 
WE EXPECT THE PRICE OF OUR COMMON STOCK TO BE VOLATILE.
 
The market price of our shares of common stock is likely to be highly volatile
and could be subject to wide fluctuations in response to factors such as, among
others:
 
  - actual or anticipated variations in our results of operations
 
  - announcements of technological innovations
 
  - new services introduced by us or our competitors
 
  - changes in financial estimates by security analysts, conditions and trends
    in the Internet and computer industries
 
  - fluctuations in the valuation of companies perceived by investors to be
    comparable to us
 
  - any shortfall in reserve or net income or any increase in losses from levels
    expected by securities analysts
 
  - general market conditions
 
                                       20
<PAGE>   25
 
Furthermore, the stock markets, and in particular Nasdaq, have experienced
extreme price and volume fluctuations that have affected and continue to affect
the market prices of equity securities of many technology companies. These
fluctuations often have been unrelated or disproportionate to the operating
performance of those companies. The trading prices of many technology companies'
stocks are at or near historical highs and reflect price to earnings ratios well
above historical levels. These trading prices and price to earnings ratios may
not be sustained. These broad market factors may cause the market price of our
common stock to decline. These market fluctuations, as well as general economic,
political and market conditions such as political and military conflict,
recessions, interest rate changes or international currency fluctuations, may
negatively impact the market price of our common stock. In the past, following
periods of volatility in the market price of a company's securities, class
action litigation has often been brought against such companies. We may in the
future be the target of similar litigation. Securities litigation could result
in substantial costs and distract management's attention and resources, which
would likely have a material adverse effect on us.
 
NEW INVESTORS WILL SUFFER IMMEDIATE SUBSTANTIAL DILUTION.
 
   
This offering is expected to create a public market for our common stock and
will substantially increase the market value of the initial investments of our
management and other existing stockholders, particularly James Couch, our
President and Chief Executive Officer. As of May 14, 1999, our existing
stockholders held 19,038,832 shares of our common stock. Based on an assumed
initial public offering price of $13.50 per share and the sale by Mr. Couch of
850,000 shares, the value of the shares held by the existing stockholders
following this offering would be approximately $245.5 million, representing an
aggregate increase of approximately $245.4 million over the amount of
consideration paid for those shares by the existing stockholders. In addition,
the initial public offering price is substantially higher than the book value
per share of our outstanding common stock. As a result, investors purchasing
common stock in this offering will incur immediate and substantial dilution of
$10.87 per share in the net tangible book value of the common stock from the
initial public offering price. We also have issued options to acquire common
stock at prices significantly below the initial public offering price. As these
outstanding options are exercised, there will be further dilution. See
"Dilution."
    
 
   
YOU SHOULD NOT RELY ON OUR FORWARD-LOOKING STATEMENTS.
    
 
   
Certain statements under the captions "Summary," "Risk Factors," "How We Intend
to Use the Proceeds from the Offering," "Management's Discussions and Analysis
of Financial Condition and Results of Operations" and "Business," and elsewhere
in this prospectus are forward-looking statements. When used in this prospectus,
the words "anticipate," "believe," "estimate," "will," "may," "should," "plan,"
"future," "intend," "expect" and similar expressions identify some of these
forward-looking statements. These statements may discuss future expectations or
contain projections of results of operations or financial condition or expected
benefits to us resulting from possible acquisitions, transactions or
developments. Although we believe that our plans, intentions and expectations
reflected in these forward-looking statements are reasonable, we can give no
assurance that such plans, intentions or expectations will be achieved. Actual
results, performance or achievements could differ materially from those
contemplated, expressed or implied by the forward-looking statements contained
in this prospectus. Important factors that could cause actual results to differ
materially from our forward-looking statements are contained in this prospectus,
including under the heading "Risk Factors."
    
 
                                       21
<PAGE>   26
 
              HOW WE INTEND TO USE THE PROCEEDS FROM THE OFFERING
 
Our net proceeds from the sale of the 5,000,000 shares of common stock offered
by us are estimated to be approximately $61,685,000, based on an assumed initial
public offering price per share of $13.50, and after deducting estimated
underwriting discounts and commissions and offering expenses payable by us. If
the underwriters exercise the over-allotment option in full, and the
over-allotment shares are sold by us instead of the selling stockholder, our net
proceeds are estimated to be $72,702,000. See "Underwriting." We will not
receive any proceeds from the sale of shares by the selling stockholder. The
principal purposes of this offering are to obtain additional capital, create a
public market for our common stock and facilitate our future access to the
public capital markets.
 
We intend to use a portion of the net proceeds to repay amounts then outstanding
under our loan agreements with our banks and our capital lease. As of March 31,
1999, approximately $1,088,000 was outstanding under these agreements as
follows:
 
   
<TABLE>
<CAPTION>
                                                  BALANCE AT      INTEREST RATE AT       MATURITY
                                                MARCH 31, 1999     MARCH 31, 1999          DATE
                                                --------------    ----------------    --------------
<S>                                             <C>               <C>                 <C>
General Line of Credit........................     $ 46,000             10.25%        September 2002
Capital Lease.................................       68,000             12.55%          July 2000
Equipment Line of Credit......................      382,000              9.50%        September 2002
Equipment Line of Credit......................      592,000              9.25%          March 2003
</TABLE>
    
 
Amounts borrowed under these agreements are secured by substantially all of our
assets. Various portions of these borrowed amounts must be repaid in full
between July 2000 and March 2003. We also expect to use a portion of the net
proceeds for working capital and other general corporate purposes, including
expansion of our sales and marketing activities.
 
As part of our growth strategy, we intend to aggressively seek suitable
acquisition candidates, such as regional Internet service providers, that have
an existing customer base that we can add to our customer base, and companies
that have products that will enable us to expand the range of our value-added
network and hosting services. We may use a portion of the net proceeds for those
acquisitions. We have no current plans, agreements or commitments with respect
to any acquisitions, and we are not currently engaged in any negotiations with
respect to any acquisitions.
 
Pending the uses described above, we will invest our net proceeds in high
quality, income-producing securities such as short-term investment grade or
United States Government interest-bearing securities.
 
                                DIVIDEND POLICY
 
We have not paid and do not anticipate paying any cash dividends on our common
stock in the foreseeable future. We intend to retain our earnings, if any, for
use in our growth and ongoing operations.
 
                                       22
<PAGE>   27
 
                                 CAPITALIZATION
 
The table below sets forth our capitalization as of March 31, 1999, (i) on an
actual basis and (ii) on an as adjusted basis and to reflect our sale of the
5,000,000 shares of common stock offered by us at an assumed initial public
offering price of $13.50, after deducting the estimated underwriting discounts
and commissions and offering expenses, and the anticipated application of the
net proceeds. See "How We Intend to Use the Proceeds From the Offering." The
capitalization information in the table below is qualified by the more detailed
consolidated financial statements and related notes beginning on page F-1 of
this prospectus. The table should be read in conjunction with those consolidated
financial statements and related notes and the sections of this prospectus
titled "Selected Financial Data" and "Management's Discussion and Analysis of
Financial Condition and Results of Operations."
 
   
The number of shares of common stock in the table below for the purposes of
determining stockholders' equity excludes 946,320 shares issuable upon exercise
of currently outstanding options and 2,000,000 shares available for the grant of
additional options under our 1999 Stock Incentive Plan. See "Management -- Stock
Options."
    
 
   
<TABLE>
<CAPTION>
                                                                MARCH 31, 1999
                                                              ------------------
                                                                           AS
                                                              ACTUAL    ADJUSTED
                                                              ------    --------
<S>                                                           <C>       <C>
Current portion of long-term obligations....................  $  280    $    --
                                                              ======    =======
Long-term obligations, less current portion.................  $  822    $    14
                                                              ------    -------
Stockholders' equity:
  Preferred stock, $.01 par value; 5,000,000 shares
     authorized; none issued and outstanding................
  Common stock, $.0001 par value; 70,000,000 shares
     authorized; 18,978,832 shares outstanding; 23,978,832
     shares outstanding as adjusted for this offering.......       6     61,691
Common Stock options........................................   1,046      1,046
Deferred stock compensation.................................    (739)      (739)
Retained earnings...........................................   1,211      1,211
                                                              ------    -------
          Total stockholders' equity........................   1,524     63,209
                                                              ------    -------
          Total capitalization..............................  $2,346    $63,223
                                                              ======    =======
</TABLE>
    
 
                                       23
<PAGE>   28
 
                                    DILUTION
 
At March 31, 1999, our net tangible book value was approximately $1.5 million,
or $0.08 per share of common stock. Net tangible book value per share represents
the amount of our total tangible assets less total liabilities, divided by the
number of shares of common stock outstanding. Net tangible book value dilution
represents the difference between the amount per share of common stock paid by
new purchasers in this offering and the net tangible book value per share after
this offering. Without taking into account any changes in net tangible book
value after March 31, 1999, other than to give effect to the sale of the
5,000,000 shares of common stock offered by us, assuming an initial public
offering price of $13.50 per share and after deducting the estimated
underwriting discounts and commissions and estimated offering expenses, our
adjusted net tangible book value at March 31, 1999 would have been approximately
$63.2 million, or $2.63 per share of common stock. This amount represents an
immediate increase in net tangible book value of $2.55 per share to the existing
stockholders and an immediate net tangible book value dilution of $10.87 per
share to purchasers of common stock in the offering. The following table
illustrates this per share dilution.
 
<TABLE>
<S>                                                           <C>     <C>
Assumed initial public offering price per share.............          $13.50
  Net tangible book value per share at March 31, 1999.......  $0.08
  Increase in net tangible book value per share attributable
     to new investors.......................................   2.55
Adjusted net tangible book value per share after the
  offering..................................................            2.63
                                                                      ------
Net tangible book value dilution per share to new
  investors.................................................          $10.87
                                                                      ======
</TABLE>
 
The table below summarizes, as of March 31, 1999, the difference between the
number of shares of common stock purchased from us, the total cash consideration
paid and the average price per share paid by existing stockholders and to be
paid by new investors purchasing shares in this offering assuming the sale of
5,000,000 shares by us at an assumed initial public offering price of $13.50 per
share.
 
   
<TABLE>
<CAPTION>
                                        SHARES PURCHASED      TOTAL CONSIDERATION     AVERAGE
                                      --------------------   ---------------------     PRICE
                                        NUMBER     PERCENT     AMOUNT      PERCENT   PER SHARE
                                      ----------   -------   -----------   -------   ---------
<S>                                   <C>          <C>       <C>           <C>       <C>
Existing stockholders(1)............  18,978,832    79.1%    $     6,000    0.0001%   $0.0003
New investors(1)....................   5,000,000    20.9      67,500,000   99.9999    $ 13.50
                                      ----------    ----     -----------   -------
          Total.....................  23,978,832     100%    $67,506,000       100%
                                      ==========    ====     ===========   =======
</TABLE>
    
 
- -------------------------
   
(1)  Sales by the selling stockholder in this offering will reduce the number of
     shares held by existing stockholders to 18,128,832, or 75.6% of the total
     number of shares of common stock outstanding after the offering and will
     increase the number of shares held by new investors to 5,850,000 or 24.4%
     of the total number of shares of common stock outstanding after the
     offering. If the over-allotment option is exercised in full and sold by the
     selling stockholder, sales by the selling stockholder in this offering will
     increase the number of shares held by new investors to 6,727,500 or 28.0%
     of the total number of shares of common stock outstanding after the
     offering.
    
 
                                       24
<PAGE>   29
 
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
   
The following selected financial data should be read with the consolidated
financial statements and related notes beginning on page F-1 of this prospectus
and "Management's Discussion and Analysis of Financial Condition and Results of
Operations" beginning on page 26 of this prospectus. The consolidated statement
of operations data for each of the three years in the period ended December 31,
1998 and consolidated balance sheet data as of December 31, 1997 and 1998 are
calculated from financial statements that have been audited by Deloitte & Touche
LLP, independent auditors, and are included elsewhere in this prospectus. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
    
 
The selected consolidated financial data for the years ended December 31, 1994
and 1995 and for the three months ended March 31, 1998 and 1999 are calculated
from unaudited consolidated financial statements not included in this
prospectus. The unaudited financial statements have been prepared by us on a
basis consistent with our audited consolidated financial statements and include,
in the opinion of our management, all adjustments consisting only of normal
recurring adjustments necessary for a fair presentation of our results of
operations and financial position for those years.
 
   
<TABLE>
<CAPTION>
                                                                                    THREE MONTHS ENDED
                                              YEAR ENDED DECEMBER 31,                    MARCH 31,
                                  -----------------------------------------------   -------------------
                                   1994      1995      1996      1997      1998       1998       1999
                                  -------   -------   -------   -------   -------   --------   --------
                                                  (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                     (UNAUDITED)                                        (UNAUDITED)
    <S>                           <C>       <C>       <C>       <C>       <C>       <C>        <C>
    STATEMENT OF OPERATIONS
      DATA:
    Revenues....................  $ 1,961   $ 3,831   $ 6,353   $10,375   $11,692   $ 2,981    $ 3,003
                                  -------   -------   -------   -------   -------   -------    -------
    Costs and expenses:
      Cost of revenues..........      965     2,131     3,346     4,640     6,166     1,499      1,798
      Selling and marketing.....       93       380       345       522       371       158         41
      General and                     411
         administrative.........                448     1,840     2,997     4,124       847      1,325
      Depreciation expense......       86       225       512       745       909       190        210
      Stock-based compensation         --
         expense................                 --        --        --       156         -        151
              Total costs and       1,555
                expenses........              3,184     6,043     8,904    11,726     2,694      3,525
                                  -------   -------   -------   -------   -------   -------    -------
    Operating income (loss).....      406       647       310     1,471       (34)      287       (522)
    Net interest income                (1)
      (expense).................                  1         1         5       (30)       (1)       (22)
                                  -------   -------   -------   -------   -------   -------    -------
    Income (loss) before income       405
      taxes.....................                648       311     1,476       (64)      286       (544)
    Income tax provision              157
      (benefit).................                211       150       591        87        83       (157)
                                  -------   -------   -------   -------   -------   -------    -------
    Net income (loss)...........  $   248   $   437   $   161   $   885   $  (151)  $   203    $  (387)
                                  =======   =======   =======   =======   =======   =======    =======
    Net income (loss) per common  $  0.01
      share basic and diluted...            $  0.02   $  0.01   $  0.05   $ (0.01)  $  0.01    $ (0.02)
    Weighted average common
      shares outstanding:
      Basic.....................   18,979    18,979    18,979    18,979    18,979    18,979     18,979
      Diluted...................   18,979    18,979    18,979    19,142    18,979    19,283     18,979
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                       YEAR ENDED DECEMBER 31,
                                               ----------------------------------------    MARCH 31,
                                               1994    1995     1996     1997     1998       1999
                                               ----   ------   ------   ------   ------   -----------
                                                                   (IN THOUSANDS)
                                                (UNAUDITED)                               (UNAUDITED)
    <S>                                        <C>    <C>      <C>      <C>      <C>      <C>
    BALANCE SHEET DATA:
    Cash and equivalents.....................  $289   $  210   $  235   $1,115   $  840     $  354
    Working capital..........................   (36)      95     (182)     554      430        229
    Total assets.............................   777    1,377    2,339    4,455    4,855      4,522
    Long-term obligations, excluding current
      portion................................     0       20       76      402      847        822
    Stockholders' equity.....................   284      709      870    1,755    1,760      1,524
</TABLE>
    
 
                                       25
<PAGE>   30
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 RESULTS OF OPERATIONS AND FINANCIAL CONDITION
 
The following discussion should be read with the consolidated financial
statements and related notes beginning on page F-1 of this prospectus. The
results shown in this prospectus do not necessarily suggest or predict the
results to be expected in any future periods. This discussion contains
forward-looking statements based on current expectations which involve risks and
uncertainties. Actual results and the timing of events may differ significantly
from those projected in these forward-looking statements due to a number of
factors, including those contained in the section entitled "Risk Factors" and
elsewhere in this prospectus.
 
OVERVIEW
 
   
We are a Tier 1 Internet service provider offering customized Internet and
network management solutions to small and medium-sized businesses. We provide
high quality, reliable and scalable Internet and private network connectivity,
value-added network and hosting services designed to meet our customers' needs.
Our operations are based in San Francisco, California. As a Tier 1 Internet
service provider, we have peering relationships at all of the interexchange
points sanctioned by the National Science Foundation, which also constitute all
of the major domestic network access points at which Internet data is exchanged.
We have private peering relationships with other major Internet service
providers. We are also a national backbone provider with our owned and
controlled private switched network with points of presence in 30 major
metropolitan areas. As a result of our Tier 1 status and network, we are able to
provide high speed and reliable access to the Internet, secure private networks
and hosting services. Our hosting services include colocation services which
allow customers to place their computer equipment inside our facilities for
direct connection to the Internet. Also, our network serves as the platform by
which we are able to deliver value-added services, such as remote management
services, systems and network integration services and network security
services, to our customer base. Historically, we have provided our services to a
variety of customers including businesses of various sizes, other Internet
service providers, government agencies and educational institutions. We intend
to expand our direct and indirect sales force to increase our customer base. We
also intend to cross sell our value-added service offerings to both existing and
future customers in order to provide comprehensive service offerings. We view
being a comprehensive service provider as a key element to our strategy to
increase revenues and reduce customer loss.
    
 
   
Our customers outsource the management of their Internet and network needs to
us. We develop and construct our data switched networks and perform all data
routing and transmission for our customers. Due to the nature of the
telecommunications infrastructure and the fragmented nature of the
telecommunications industry, we lease fiber-optic capacity from third-party
providers over which we transmit data and peer with other telecommunications
providers to exchange data traffic.
    
 
   
In December 1998, we acquired Integral Networking Corporation in a merger
accounted for as a pooling of interests. Integral has a ten-year operating
history in the area of systems integration. Over the past three years, Integral
has developed a proprietary process to manage customer networks from the server
to the desktop while remaining off-site. We are able to capitalize on our
existing network to provide cost effective remote management services to our
customers from a single location operated by CRL. With our remote management
service, customers are able to outsource a portion or all of their information
technology departments as well as add functionality and applications to their
networks. We intend to offer remote management services on a nationwide basis.
Prior to the merger with Integral, we had little experience in, and derived
insignificant revenues from, remote management services and systems integration.
    
 
                                       26
<PAGE>   31
 
Revenues. We derive our revenues from four principal services:
 
  - Internet and secure private network connectivity
 
  - remote management
 
  - hosting services
 
  - systems integration and hardware sales
 
   
Revenues from Internet and private network connectivity are typically derived
from monthly fixed prices paid by customers based upon access speed. We offer
dedicated connectivity in a range of access speeds, including fractional T1
(from 64 kilobits per second up to 1.536 megabits per second), T1 (1.536
megabits per second), T3 (45 megabits per second) and OC3 (155 megabits per
second) as well as dial-up access and transit services. We also offer our
customers the ability to upgrade access speeds as their needs increase. We
recently began offering digital subscriber line services but have generated no
revenues from these services. We currently generate Internet and private network
connectivity revenues from a wide range of customers including Internet service
and content providers, businesses, government agencies and educational
institutions. We intend to increase our sales and marketing focus, particularly
on small and medium-sized businesses.
    
 
Revenues from our remote management services are typically derived from monthly
fees for a fixed level of service. Pricing for our remote management services is
based on the number of users and a fixed maximum number of calls per month. Our
remote management services are focused on small and medium-sized businesses.
Historically, revenues from value-added services have represented an
insignificant portion of our total revenues and have not been reported
separately in our financial results. With our acquisition of Integral
Networking, we intend to increase our focus on our value-added services, as
evidenced by our recent rollout of remote management services.
 
Revenues from hosting services are typically derived from renting space to our
customers in which they place their file servers and equipment within our
facilities. The rental fee is based on the size of the space and access speeds.
Our customers can select from a variety of options in terms of access speeds and
space such as rack, half-rack or shelf. Access speeds include switched or
dedicated ethernet service (10 megabits per second), switched or dedicated fast
ethernet service (100 megabits per second) and gigabit fast ethernet services
(1,000 megabits per second). Our customers can purchase additional space and
increase their access speeds as needed. Our current facilities are sufficient to
permit our customers to purchase additional space. However, we will be required
to expand our facilities if future customer demand exceeds our existing
capacity.
 
Revenues from systems integration services are derived from hardware sales and
consulting fees. Our systems integration services including hardware sales are
currently provided primarily in California. Prior to our merger with Integral
Networking we derived insignificant revenues from hardware sales to customers,
and no revenues from systems integration services.
 
Cost of Revenues. Cost of revenues from Internet and private network
connectivity consists primarily of backbone costs and monthly access charges by
local exchange carriers to connect our customers to our network and colocation
costs. Backbone costs include all leased fiber-optic capacity to interconnect
our points of presence and to connect to public and private peering points. We
lease our fiber-optic capacity typically under short-term leases and are billed
monthly by our bandwidth providers. Colocation costs consist of monthly fees for
leasing space in facilities in which we colocate with other telecommunications
providers.
 
Cost of revenues from remote management services consists primarily of personnel
costs to provide customer support and network monitoring services. We believe
our cost of revenues from remote management services and other value-added
services as a percentage of revenues may decline as we increasingly provide
remote management services and other value-added services to existing customers
over the existing connection we provide to the customer.
 
Cost of revenues from hosting services consists primarily of rent expenses for
colocation space.
 
                                       27
<PAGE>   32
 
Cost of revenues from systems integration services consists primarily of the
cost of hardware purchased.
 
Selling and Marketing Expense. Selling and marketing expense consists primarily
of sales commissions, travel and entertainment and sales and marketing programs.
We intend to expand our investment in our sales and marketing personnel to
achieve and properly support the intended expansion in our customer base.
 
General and Administrative Expense. General and administrative expense consists
primarily of personnel expense, occupancy, general operating costs, professional
fee expenses and bad debt. We expect general and administrative expense to
increase in dollar amount in the future, reflecting anticipated growth in our
operations and the costs associated with being a publicly held company.
 
   
Stock-Based Compensation Expense. In connection with the grant of stock options
to employees in 1999 and 1998, we recorded an aggregate deferred compensation
expense of approximately $948,000, representing the difference between the
estimated fair market value of the common stock and the option exercise price at
the date of grant. This amount is presented as a reduction of stockholder's
equity and is amortized over the vesting period of the applicable options. These
valuations resulted in charges to operations of $156,000 in the year ended
December 31, 1998, and $151,000 for the three months ended March 31, 1999, and
will result in charges of the remaining $739,000 over the next five years.
    
 
Depreciation. Depreciation expense consists primarily of depreciation of
computer equipment, office furniture and leasehold improvements. On January 1,
1998, we changed the estimated useful lives for our switches and routers from
three to five year lives as a result of our determination, based on historical
experience, that the vast majority of assets in this class have service lives of
approximately five years.
 
RESULTS OF OPERATIONS
 
The following table sets forth our statement of operations data for the years
indicated as a percentage of revenues. This information should be read in
conjunction with the financial statements and notes included elsewhere in this
prospectus.
 
   
<TABLE>
<CAPTION>
                                                                            THREE MONTHS
                                                                               ENDED
                                              YEARS ENDED DECEMBER 31,       MARCH 31,
                                             --------------------------    --------------
                                              1996      1997      1998     1998     1999
                                             ------    ------    ------    -----    -----
<S>                                          <C>       <C>       <C>       <C>      <C>
Revenues...................................  100.0%    100.0%    100.0%    100.0%   100.0%
                                             -----     -----     -----     -----    -----
Costs and expenses:
  Costs of revenues........................   52.7      44.7      52.7      50.3     59.9
  Selling and marketing....................    5.4       5.0       3.2       5.3      1.4
  General and administrative...............   29.0      28.9      35.3      28.4     44.1
  Depreciation.............................    8.1       7.2       7.8       6.4      7.0
  Stock-based compensation expense.........     --        --       1.3        --      5.0
                                             -----     -----     -----     -----    -----
          Total costs and expenses.........   95.1      85.8     100.3      90.4    117.4
                                             -----     -----     -----     -----    -----
Operating income (loss)....................    4.9      14.2      (0.3)      9.6    (17.4)
Net interest (expense).....................     --        --      (0.3)       --     (0.7)
Income tax provision (benefit).............    2.4       5.7       0.7       2.8     (5.2)
                                             -----     -----     -----     -----    -----
Net income (loss)..........................    2.5%      8.5%     (1.3)%     6.8%   (12.9)%
                                             =====     =====     =====     =====    =====
</TABLE>
    
 
COMPARISON OF QUARTERS ENDED MARCH 31, 1999 TO MARCH 31, 1998
 
  Revenues
 
Our revenues increased 0.7% to $3.00 million in the quarter ended March 31,
1999, compared to $2.98 million in the quarter ended March 31, 1998. Increased
revenues resulting from two major systems integration sales were offset by a
12.6% reduction in colocation and Internet connectivity revenues.
 
                                       28
<PAGE>   33
 
  Cost of Revenues
 
   
Our cost of revenues increased 20% to $1.8 million in the quarter ended March
31, 1999, compared with $1.5 million in the quarter ended March 31, 1998. This
increase was primarily the result of the increased volume of computer equipment
sold in connection with the increased systems integration sales recognized.
    
 
  Selling and Marketing
 
Our sales and marketing expenses decreased 74.1% to $41,000 in the quarter ended
March 31, 1999, compared to $158,000 in the quarter ended March 31, 1998. This
decrease is attributable primarily to sales commissions and costs associated
with a 1998 trade show that were not incurred in the 1999 period.
 
  General and Administrative
 
General and administrative expenses increased 56.4% to $1.3 million for the
quarter ended March 31, 1999, compared to $847,000 for the quarter ended March
31, 1998. The increase was primarily due to an increase in personnel expense of
$280,000, facilities cost increase of $65,000, and an increase in outside
services and professional fees of $60,000.
 
  Depreciation
 
   
Our depreciation expense increased 10.5% to $210,000 in the quarter ended March
31, 1999, compared to $190,000 in the quarter ended March 31, 1998. The increase
is due primarily to the buildout of our new network operations center in 1998.
    
 
  Stock-Based Compensation
 
Stock-based compensation of $151,000 was amortized during the quarter ended
March 31, 1999.
 
  Net Interest Income (Expense)
 
We incurred net interest expense of $22,000 in the quarter ended March 31, 1999,
compared to $1,000 in the quarter ended March 31, 1998. This change was a result
of increased borrowing for network equipment under our lines of credit that was
used to purchase network equipment.
 
COMPARISON OF YEARS ENDED 1998 TO 1997
 
  Revenues
 
   
Our revenues increased 12.7% to $11.7 million in 1998, compared to $10.4 million
in 1997. This growth in revenues resulted from an 11% increase in sales of
dedicated Internet connectivity and hosting services, a tenfold increase in
revenues derived from private network connectivity services and a 34% increase
in sales generated by systems integration services. Dedicated Internet
connectivity service is service provided over a circuit which is available 24
hours-a-day, seven days-a-week for the sole purpose of delivering the Internet
connectivity. Approximately 74% of our 1998 revenues was generated from our
Internet and network connectivity services, approximately 16% from value-added
services and approximately 7% from hosting services. Offsetting these increases
were reductions in revenues of $545,000 realized from dial-up customers and
reduced fees for installation services. This decrease resulted from our
increased focus on providing dedicated Internet and higher value services to
business and government customers.
    
 
  Cost of Revenues
 
Our cost of revenues increased 32.9% to $6.2 million in 1998, compared with $4.6
million in 1997. Of this increase, $1.2 million was primarily due to increased
one time connectivity charges arising from the expansion of our network and
installation charges of $139,000. The expansion resulted in incremental unused
capacity. In addition, we had increased costs of $286,000 arising from hardwares
sales with our systems integration services.
 
                                       29
<PAGE>   34
 
  Selling and Marketing
 
Our selling and marketing expenses decreased 28.9% to $371,000 in 1998, compared
to $522,000 in 1997. This decrease is attributable primarily to reduced
commissions expense. Commissions in 1998 were based upon total contract value
equalling the term of the contract multiplied by monthly service fees. The
decrease in commissions expense in 1998 results from fewer sales of longer-term
versus shorter-term contracts than in 1997 and increased purchases by our
existing customer base of increased access speeds and additional space rather
than increases in the number of new customers. The decrease in longer-term
contracts is due to a general industry decrease in the prices for the services
we provide, making customers reluctant to sign longer-term contracts. The
increase in shorter-term contracts does not materially impact the conduct of our
business. We also experienced a reduction in our sales force in 1998 due to a
number of factors including normal attrition and our being involved in
negotiations in the second and third quarters of 1998, relating to potential
business combinations with companies with existing sales forces. We believe our
involvement in these negotiations caused a higher attrition rate for our sales
staff than we have historically experienced. These negotiations also caused us
to postpone our efforts to hire additional and replace lost sales staff.
 
  General and Administrative
 
General and administrative expenses increased 37.6% to $4.1 million for 1998,
compared to $3.0 million for 1997. Approximately $675,000 of this increase
relates to salaries and benefits resulting from an increase in personnel.
Facilities and related expenses increased by $424,000 primarily as a result of
the expansion of our network infrastructure.
 
  Depreciation
 
   
Our depreciation expense increased 22.0% to $909,000 in 1998, compared to
$745,000 in 1997. The increase is due to additional capital expenditures
incurred during 1998 for telecommunications equipment and facilities
improvements. On January 1, 1998, we changed the estimated useful lives for our
switches and routers from three to five-year lives. This change reduced 1998
depreciation by $237,000. We made this change to more accurately reflect our
historical experience with respect to the actual useful lives of the equipment.
    
 
  Stock-Based Compensation
 
Stock-based compensation of $156,000 was amortized during the year ended
December 31, 1998, and stock-based compensation of $792,000 will be amortized
over the remaining vesting periods of the related options, including $394,000 in
the year ending December 31, 1999. In addition, we issued stock options to
employees during the first quarter of 1999, which will result in additional
stock-based compensation of $98,000 being recorded in 1999, $50,000 of which
will be amortized as an expense 1999. Based on these issuances of stock options
below the fair value of our stock, we will record a total stock-based
compensation charge in 1999 of approximately $444,000.
 
  Net Interest Income (Expense)
 
We incurred net interest expense of $30,000 in 1998, compared to $5,000 in
income in 1997. This change was a result of increased borrowing for network
equipment under our lines of credit.
 
COMPARISON OF YEARS ENDED 1997 TO 1996
 
  Revenues
 
Our revenues increased 63.3% to $10.4 million in 1997, compared to $6.4 million
in 1996. Approximately $4.9 million of this increase is due to growth in
revenues generated by our Internet connectivity services and installation fees.
This increase was slightly offset by a $917,000 aggregate decrease in dial-up
customer and systems integration services revenues.
 
                                       30
<PAGE>   35
 
  Cost of Revenues
 
Our cost of revenues increased 38.7% to $4.6 million in 1997, compared to $3.3
million in 1996. This increase resulted from a $1.4 million increase due to
larger connectivity charges and other costs incurred with our network expansion.
In addition, costs arising from our systems integration services were $118,000
less than the prior year.
 
  Selling and Marketing
 
Our selling and marketing expenses increased 51.3% to $522,000 in 1997, compared
to $345,000 in 1996. This increase is attributable primarily to increased
commissions and travel and entertainment expenses.
 
  General and Administrative
 
General and administrative expenses increased 62.9% to $3.0 million in 1997,
compared to $1.8 million in 1996. Salaries and general office expenses increased
by $584,000 as we hired more personnel to keep pace with the growth in demand
for our services. In addition, bad debt expenses increased by $573,000.
 
  Depreciation
 
Our depreciation expense increased 45.5% to $745,000 in 1997, compared to
$512,000 in 1996. The increase was primarily the result of additional capital
expenditures incurred for telecommunications equipment and facilities
improvements.
 
FACTORS AFFECTING OPERATING RESULTS
 
   
We expect to experience significant fluctuations in our future quarterly and
annual results of operations due to a variety of factors, most of which are
outside our control. For a list of factors affecting our operating results, see
"Risk Factors -- Our operating results in one or more future periods are likely
to fluctuate significantly" and the other risk factors described in this
prospectus. Due to all of these factors, we believe that period-to-period
comparisons of our operating results are not necessarily meaningful and should
not be relied upon as indications of future performance.
    
 
YEAR 2000 COMPLIANCE DISCLOSURE
 
The year 2000 issue is the result of computer programs being written using two
digits rather than four to define the applicable year. As a result,
date-sensitive software may recognize a date using "00" as the year 1900 rather
than the year 2000. In addition, the year 2000 is a leap year, and some computer
programs may not properly provide for February 29, 2000. System failures and
miscalculations causing disruptions of normal business activities may occur
including, among other things, a temporary inability to process transactions,
send invoices, or engage in similar normal business activities. As a result,
many companies' software and computer systems may need to be upgraded or
replaced in order to comply with year 2000 requirements. We are currently in the
process of reviewing our network switching, routing and telephone equipment,
constituting the equipment used in providing our Internet and network connection
services, as well as our internal management information systems, in order to
identify and modify those items and systems that are not year 2000 compliant. We
do not have and are not developing a contingency plan in the event our systems
fail due to year 2000 related problems.
 
   
Our year 2000 readiness review includes assessment, implementation, testing and
upgrading or replacing non-compliant items as appropriate. We have completed
most of our review of all of our software, switches and routers and other
systems and anticipate completion of our assessment and implementation by
mid-1999 and completion of all year 2000 testing during the third quarter of
1999. To date, we have evaluated our internally developed systems, consisting of
our management information system, provisioning tracking system, technical
information database and customer and network information database and believe
that they are year 2000 compliant. However, we utilize software and hardware
developed by third
    
 
                                       31
<PAGE>   36
 
   
parties both for our network and internal information systems. We have reviewed
the year 2000 compliance statements issued by, reviewed publicly available
information regarding, or have sought oral and written assurances from, our
significant suppliers. Nine of them have indicated that their products are year
2000 compliant, and none have indicated that remediation measures are necessary.
We intend to continue to seek assurances from our other suppliers during the
course of our year 2000 readiness review. To the extent that our systems are not
year 2000 compliant, we are modifying such systems to make them compliant.
Noncompliant items are replaced or otherwise remediated and then tested during
the review process. To date, we have identified the need to upgrade our Cascade
OpenView Layer 2 network management and switch operating system software to
Ascend Naviscare software. We anticipate completing this upgrade by mid-1999.
Assessment of our telephony systems has not yet been completed but is currently
in process. We expect these modifications will be made on a timely basis and do
not believe that the cost of the modifications will have a material effect on
our business, results of operations or financial condition. To date, we have not
incurred material costs in upgrading and replacing non-compliant items.
Additionally, we are continuing to assess the year 2000 compliance of our
services and systems. We believe our services and systems assessed to date do
not contain material year 2000 deficiencies. We estimate that the capital and
other costs associated with any upgrade and conversion of our existing services
and systems relating to the year 2000 issue will not be material.
    
 
We expect to continue assessing and testing our internal information technology,
which we refer to as IT, and non-IT systems to mid-1999 with the assessment and
remediation process described above. To ensure year 2000 compliance we will
upgrade the server on which our accounting software runs in the third quarter of
1999. We are not currently aware of any material operations issues or costs
associated with preparing our internal IT and non-IT systems for the year 2000.
However, we may experience material unanticipated problems and costs caused by
undetected errors or defects in the technology, including embedded technology,
used in our internal IT and non-IT systems.
 
   
Based upon our correspondence with and the publicly available information
regarding our primary equipment, telecommunications and data communications
providers, we are aware that more than three-quarters of these providers are in
the process of reviewing and implementing their own year 2000 compliance
programs. We are in the process of contacting the remaining quarter of our
suppliers to determine the scope of their year 2000 compliance programs. Of the
providers from whom we received correspondence, none of them has indicated that
they have not considered year 2000 compliance, none have indicated that they are
currently year 2000 compliant and all have indicated that they expect to be year
2000 compliant by the end of 1999. At this time, CRL is not aware of, and cannot
determine, apart from the public materials reviewed and assurances received, how
many of its providers are implementing remediation measures which affect CRL. We
do not believe that we will be afforded the opportunity to test the systems of
these providers. If our primary providers experience business interruptions as a
result of the failure to achieve year 2000 compliance, our ability to provide
Internet connectivity could be impaired, which could have a material adverse
effect on our business, results of operations and financial condition.
    
 
   
Our services and systems operate in complex network environments and directly
and indirectly interact with a number of other hardware and software systems. We
face risks to the extent that suppliers of products, services and systems
purchased by us and others with whom we transact business, including those which
form significant portions of our network and may be sole or limited source
suppliers, such as Ascend Communications, Inc., the provider of our Cascade
switches, do not have business systems or products that comply with year 2000
requirements, despite the implementation of a year 2000 compliance program or
assurances of year 2000 compliance by all of such suppliers. Ascend
Communications, Inc.'s public disclosure indicates that it has a plan in place
to become, to the extent it is not already, year 2000 compliant by June 1999. We
have received assurances from approximately one third of our suppliers that
their networks are year 2000 compliant including our two most significant
equipment suppliers, Ascend and Cisco. If these networks fail, our business will
be significantly impacted.
    
 
We do not currently have any information regarding the year 2000 status of our
customers, many of whom are private companies. As is the case with similarly
situated companies, if our customers experience year 2000 problems, which result
in business interruptions or otherwise impact their operations, we could
                                       32
<PAGE>   37
 
experience a decrease in the demand for our services, which could have a
material adverse impact on our business, results of operations and financial
condition.
 
We have not incurred any significant expenses to date associated with our year
2000 plan and are not aware of any material costs associated with our
anticipated year 2000 efforts. Our expectation that we will be able to upgrade
our services and systems to address the year 2000 issue and our expectation
regarding the costs associated with these upgrades are forward-looking
statements subject to a number of risks and uncertainties. Actual results may
vary materially as a result of a number of factors. We cannot assure you that we
will be able to timely and successfully modify our services and systems to
comply with year 2000 requirements. Any failure to do so could have a material
adverse effect on our business, results of operations and financial condition.
Furthermore, despite testing by us and our vendors, our services and systems may
contain undetected errors or defects associated with year 2000 date functions.
In the event any material errors or defects are not detected and fixed or third
parties cannot timely provide us with products, services or systems that meet
the year 2000 requirements, our business, results of operations and financial
condition could be materially adversely affected. Known or unknown errors or
defects that affect the operation of our services or systems could result in
delay or loss of revenues, interruption of network services, cancellation of
customer contracts, diversion of development resources, damage to our
reputation, damages paid to customers and litigation costs.
 
LIQUIDITY AND CAPITAL RESOURCES
 
We have historically generated positive cash flows from operating activities and
have financed our growth, as well as necessary capital expenditures and working
capital needs, primarily through the use of internally generated funds and lines
of credit. In addition, we have made limited use of capital lease financing. We
expect to experience a substantial increase in our operating expenses as we
implement our growth strategy and incur expenses for hiring new personnel and
for additional leased network capacity. We also anticipate an increase in our
capital expenditures consistent with our anticipated need for additional network
infrastructure. We expect our operating expenses and capital expenditures will
be a significant use of our cash resources.
 
   
We currently have agreements with commercial lenders providing for equipment
financing arrangements. Integral also has a line of credit with a commercial
lender. As of March 31, 1999, approximately $1,088,000 was outstanding under
these agreements. Amounts borrowed under these agreements are secured by
substantially all of our assets and bear interest at a weighted average rate
equal to 9.6% as of May 14, 1999. Various portions of these borrowed amounts
must be repaid in full between July 2000 and March 2003. We intend to use a
portion of the proceeds from the offering to repay the amounts outstanding under
these loan agreements. In addition, we have a $200,000 working capital line of
credit. As of March 31, 1999, we had no cash borrowings with that facility. See
"How We Intend to Use the Proceeds from the Offering."
    
 
Our net cash flows from operating activities were $705,000 for 1998, $1.7
million for 1997, and $944,000 for 1996. Our borrowings were $703,000 for 1998,
$358,000 for 1997 and zero for 1996. At December 31, 1998, we had $840,000 in
cash and cash equivalents.
 
Net cash used in investing activities was $1,529,000 for the year ended December
31, 1998, $1,182,000 for the year ended December 31, 1997, and $905,000 for the
year ended December 31, 1996. Cash used in investing activities was primarily
used to purchase property and network equipment.
 
Net cash provided by (used in) financing activities was $549,000 for the year
ended December 31, 1998, $316,000 for the year ended December 31, 1997 and
$(14,000) for the year ended December 31, 1996. In the years ended December 31,
1998 and 1997, net cash provided by financing activities resulted primarily from
borrowings. Net cash used in financing activities in the year ended December 31,
1996, resulted from debt payments.
 
We believe that the net proceeds of this offering, together with our existing
cash, cash equivalents and short-term investments and available credit
facilities, will be sufficient to meet our anticipated cash needs
 
                                       33
<PAGE>   38
 
for working capital, repayment of debt and capital expenditures for at least the
next 12 months. Thereafter, we may require additional funds to support our
working capital and capital expenditure requirements and may seek to raise
additional funds through public or private equity or debt financings or other
sources for such requirements and acquisitions of technologies, companies and
development of our existing and new services. Any additional financing we may
need may not be available on terms favorable to us, or at all. See "Risk
Factors -- We may require substantial future capital to implement our business
plan" and "How We Intend to Use the Proceeds from the Offering."
 
RECENTLY ISSUED ACCOUNTING STANDARDS
 
In March 1998, the Accounting Standards Executive Committee of the American
Institute of Certified Public Accountants issued SOP 98-1, Accounting for the
Costs of Computer Software Developed or Obtained for Internal Use. SOP 98-1
provides guidance for an enterprise on accounting for the costs of computer
software developed or obtained for internal use. SOP 98-1 is effective for us in
fiscal 1999. We anticipate that accounting for transactions under SOP 98-1 will
not have a material impact on our financial position or results of operations.
 
In June 1998, the FASB issued SFAS No. 133, Accounting for Derivative
Instruments and Hedging Activities, which defines derivatives, requires that all
derivatives be carried at fair value, and provides for hedge accounting when
conditions specified in SFAS No. 133 are met. SFAS No. 133 is effective for us
in fiscal 2000. We do not believe adoption of this statement will have a
material impact on our financial position or results of operations.
 
                                       34
<PAGE>   39
 
                                    BUSINESS
 
GENERAL
 
   
CRL Network Services is a Tier 1 Internet service provider offering customized
Internet and network management solutions to small and medium-sized businesses.
Our services include:
    
 
   
  - connectivity to the Internet and secure private networks through our
    national backbone network from which our Internet access customers can reach
    every other Internet address and our network customers can reach other
    destinations within their private network.
    
 
   
  - value-added services, which are services delivered over the same circuit as
    our connectivity services in addition to those services. Our current
    value-added services are remote management of our customer's networks and
    systems integration, which includes the resale, installation and
    configuration of our customers' computer systems and software.
    
 
   
  - hosting, which is the distribution of customers' Internet content from our
    facilities.
    
 
   
Our customers outsource the management of their Internet and network needs to
us. We develop and construct our data switched networks and perform all data
routing and transmission for our customers. We lease fiber-optic capacity from
third-party providers over which we transmit data and peer with other
telecommunications providers to exchange data traffic.
    
 
   
We believe we were among the first companies involved in the development of
connectivity solutions and services for the commercial Internet. We have
developed our own high speed network, which enables us to reliably and cost
effectively deliver customized, comprehensive solutions. As of May 14, 1999, we
had 30 points of presence in major metropolitan areas that connect to the
interexchange points sanctioned by the National Science Foundation for the
transfer of Internet Protocol-based traffic between Internet backbone networks.
Our network is comprised of several elements, including 23 Cascade switches, 54
Cisco routers, facilities and clear channel fiber-optic bandwidth, which
together provide a fast, secure, high quality network capable of minimizing
outages resulting from hardware or software faults.
    
 
INDUSTRY OVERVIEW
 
   
To remain competitive, businesses today must have the ability to reliably access
and share information both externally and internally. In response, companies are
increasingly conducting business over the public Internet and their own private
networks. As a result, businesses are expanding their connectivity to the
Internet and use of both local area networks, commonly referred to as LANs, and
wide area networks, commonly referred to as WANs. The Internet's functionality
and accessibility have created an increasingly attractive commercial medium to
quickly and efficiently provide services and distribute information that
historically has been more difficult to obtain through traditional communication
channels. At the same time, businesses are continuing to develop private
networks to distribute and share information, resulting in a dramatic increase
in private network traffic as well as heightened performance requirements for
these networks. Increased use of the Internet and public and private networks
has also driven growth in the amount of sensitive corporate information shared
over networks, causing network security to become a high priority for many
businesses. As a result of these trends, a growing number of businesses view
responsive, reliable and secure networks as integral to their operations. As
these businesses evolve, the effectiveness of their networks depends largely on
the scalability and flexibility of these networks.
    
 
The proliferation of Internet use is driven by the emergence of electronic
commerce and availability of applications such as the outsourcing of help desk
functions, Internet Protocol-based voice, fax and video conferencing, purchasing
and provisioning functions, and corporate and product marketing. Businesses are
confronted with increasing customer demand for offerings of products and
services over the Internet as a result of the immediacy and convenience it
affords. As the Internet evolves, companies are transitioning from Internet use
for business-supportive functions such as marketing and customer support, to
functions
 
                                       35
<PAGE>   40
 
   
integral to business such as transaction execution, including sales orders and
customer billing. As Internet use becomes increasingly integral to business,
businesses' emphasis on the reliability and security of their Internet access
grows in importance. Also, many businesses have emerged that focus solely on
delivering services over the Internet through Web sites and electronic commerce
applications. Their ability to offer these kinds of products and services
requires high bandwidth Internet sites and operations which are sufficiently
scalable to meet their changing needs. Due to advances in online security and
payment mechanisms, the number of businesses establishing commerce-enabled Web
sites is expected to increase dramatically. International Data Corporation
estimates that the number of consumers buying goods and services on the Internet
will grow from 18 million in 1997 to 128 million in 2002, and that the total
value of goods and services purchased over the Internet will increase from
approximately $12 billion in 1997 to approximately $425 billion by 2002.
Businesses are positioning themselves to capture this rapid growth opportunity
by enhancing their Internet presence.
    
 
   
The need for businesses to establish secure private wide area networks using the
services of companies like CRL has been driven by the growing importance of
connecting the geographically dispersed sites of their business, their customers
and their suppliers. As networks become a more integral part of day-to-day
operations, many companies seek to minimize network costs and improve operating
efficiencies. Traditional wide area network architectures consist of dedicated
circuits between computing facilities utilizing the same fixed bandwidth
regardless of traffic flow. New switched data technologies such as that utilized
by us share and dynamically allocate bandwidth based on prevailing traffic
patterns. The shared bandwidth of switched data technologies typically results
in wide area networks that are more reliable and cost efficient than those based
on traditional leased-line services.
    
 
   
Local area networks have emerged from businesses' need to access and share
internal electronic information. To enable effective internal communication and
distribution of company information, the local area network is used by
businesses seeking to decentralize their information databases. Local area
networks facilitate access to client/server-based technology such as Web-enabled
databases, shared file servers, e-mail, electronic commerce applications, and
other online information. Use of local area networks and the services of LAN
service providers will continue to grow as businesses increasingly decentralize
information.
    
 
As local area networks and wide area networks become more prominent, businesses
increasingly need remote access to their network for mobile workers. Many
businesses recognize the importance of controlling the method by which
electronic automation takes place and ensuring the security of communications
between mobile workers and the proprietary networked resources they access. The
benefits of efficiently distributing proprietary information to those with a
need to know must be weighed carefully against the possibility that unauthorized
access to sensitive information can occur due to failed security mechanisms or
poor network design.
 
   
Internet access services provided by Internet service providers interconnect
businesses and individuals to the Internet, private data networks and other
interconnected networks. Access services include high speed dedicated access
used primarily by medium-sized and larger organizations and dial-up access for
individuals and small or home office businesses. In addition to Internet access
services, business-focused Internet service providers such as CRL are
increasingly providing a range of additional communications services, including
remote management, shared and dedicated Web hosting, server colocation, network
security services, electronic commerce applications and new applications such as
Internet Protocol-based voice, fax and video conferencing. Internet service
providers who can bundle several of these communications services can satisfy
more of the needs of their customers and enhance their cross-selling
opportunities.
    
 
   
Several different types of Internet service providers have emerged and are
generally referred to as Tier 1, Tier 2, and Tier 3 network service providers.
International Data Corporation defines a Tier 1 network service provider as an
operator of a high quality, national backbone facility, specializing in leased
line connectivity. Also according to International Data Corporation, most Tier 1
network service providers peer directly at the National Science
Foundation-approved network access points. International Data
    
 
                                       36
<PAGE>   41
 
Corporation defines Tier 2 and Tier 3 network service providers as those who do
not have a national backbone network.
 
   
Peering is critical to providing high quality, high speed Internet access. By
peering directly with other networks, Tier 1 Internet service providers such as
CRL are able to send Internet traffic via the most direct and reliable path to
its final destination (the fewest "hops"), thereby minimizing potential delay
and lost or corrupted data. Additionally, Tier 1 Internet service providers
maintain and control their own national backbones and are generally better able
to control the quality of service, level of data integrity and degree of
reliability than non-Tier 1 Internet service providers. Many Tier 1 providers
are also fully peered, which means they can route traffic to every other
Internet destination through peering arrangements without paying transit fees.
Because Tier 1 Internet service providers typically do not pay for the privilege
of interconnecting with other Tier 1 networks with whom they peer, they can
increase their available Internet capacity by expanding existing peering
connections with their peer networks without the high costs associated with the
retail purchase of additional Internet access. The following is a list of
Internet service providers whom we believe to be some of the Tier 1 Internet
service providers: MCI WorldCom, Inc. (UUNET), Cable & Wireless P.L.C., Sprint
Corporation, ICG Communications, Inc. (Netcom), PSINet Inc., GTE Internetworking
Incorporated (BBN Planet), Intermedia Communications Inc. (Digex), AT&T
Corporation and CRL. As the number of Internet service providers has grown, Tier
1 Internet service providers have increased their requirements for peering
arrangements, which has raised the barriers to acquiring and maintaining Tier 1
status.
    
 
The internal network design of the Internet service provider's network is also a
significant factor in determining the speed and reliability of data delivery
from source to destination. Traditional networks constructed solely of routing
devices require that a packet of information stop at a router in every point of
presence along the traveled network path. Each of these routed hops requires the
data packet to be examined by the router and a policy-based routing decision to
be made regarding the egress of the packet back onto the network. Many routing
decisions can delay the delivery of the packet to its destination. By contrast,
switched data networks can deliver information directly between the source and
destination without the need to disassemble the data packets during transit. As
a result, switched data networks generally provide higher speeds, less data
delay and overall better quality of service than traditionally routed networks.
 
THE MARKET OPPORTUNITY
 
  Overview
 
   
Internet and private network operations are increasingly becoming integral to
the commercial and communication operations of businesses. The evolution and
expansion of Internet services and the networks over which they are delivered
has led to a growing need for comprehensive, bundled Internet and network
services such as those offered by CRL.
    
 
  The Need for Internet Connectivity Services
 
   
The Internet continues to increase in size and importance as its role in
integral business operations expands. Businesses are looking to third-party
providers for expertise in implementing their Internet strategies. According to
Forrester Research, Internet access revenues from businesses are expected to
increase from less than $1 billion in 1997 to more than $16 billion in 2002.
Internet service providers are ideally positioned to capitalize on this growing
need of businesses to access and utilize more of the Internet.
    
 
  Demand for Secure Private Networks
 
Historically, data communications services offered over private leased lines
were expensive, not monitored or managed for quality of service nor capable of
deflecting outages from software or hardware faults. Seeking a less expensive
alternative, some businesses use the public Internet for communications but are
 
                                       37
<PAGE>   42
 
   
confronted with potential problems inherent in the Internet, such as
unauthorized access and data loss and reduced transmission speed, commonly
referred to as degradation. Virtual private networks are also used as another
less expensive alternative, but similarly include security concerns and
unreliable performance due to their reliance on the Internet for data
transmission. By contrast, Layer 2, switched private networks used by providers
like CRL offer a networking option which is more cost effective than traditional
point-to-point private leased lines but is an owned and controlled network not
depending upon the Internet for data transfer, eliminating security concerns and
permitting lower and more stable delay levels than data communications
alternatives relying upon the Internet.
    
 
  Enhanced Network Management Services
 
   
Businesses need to ensure that their networks, information systems and
applications operate continuously as their reliance on public and private
networks increases. While large businesses are able to build and maintain
information technology departments capable of servicing their networks,
information systems and applications, small and medium-sized businesses find it
difficult to cost effectively maintain information technology departments
capable of ensuring the continuous availability of complex networks running
multiple applications. It is also difficult and expensive for small and
medium-sized businesses to continuously train their information technology
departments to support new technologies and applications. As a result, many
small and medium-sized businesses have chosen to outsource their information
technology department functions to network service providers capable of offering
a full range of these services. Traditionally, outsourcing information
technology services has required site visits from the service provider even for
routine problems often resulting in lengthy delays. As a result, small and
medium-sized businesses are seeking the ability to affordably outsource their
information technology departments to network service providers capable of
rapidly responding to problems and minimizing network downtime. International
Data Corporation reports that the U.S. market for network monitoring and
management was $2.4 billion in 1998 and is projected to reach $4.7 billion in
2002, representing an 18% annual growth rate.
    
 
  Hosting Services
 
As Internet presence becomes increasingly critical to business operations, many
businesses are seeking to outsource hosting services, including Internet
colocation, to network service providers. By outsourcing these functions,
businesses can establish a strong Internet presence while remaining focused on
their core business operations. According to Forrester Research, revenues from
complex Web hosting will increase from approximately $200 million in 1997 to $8
billion in 2002, while intranet hosting will generate nearly $400 million in
revenues for Internet service providers by 2002. Traditional hosting companies
operate geographically dispersed networks that are subject to increased risks of
data delay and degradation or loss, as data travels across multiple network
connections, or hops. Many hosting companies also do not have the flexibility,
peering arrangements or capacity to quickly scale their services to meet the
sharp growth and high bandwidth requirements of Internet operations integral to
business. Network service providers who are able to overcome these obstacles
will be well positioned to capitalize on the growth of the Web hosting market.
 
OUR SOLUTION
 
   
Through our national, facilities-based fully-peered network, we offer our
customers high quality, flexible and scalable services, including:
    
 
   
  - connectivity to the Internet and secure private networks through our
    national backbone network from which our Internet access customers can reach
    every other Internet address and our network customers can reach other
    destinations within their private network
    
 
   
  - value-added services delivered over the same circuit as our connectivity
    services in addition to those services, consisting of remote network
    management of our customers' networks and systems integration services
    
 
  - hosting services
                                       38
<PAGE>   43
 
   
Approximately 74% of our 1998 revenues was generated from our Internet and
network connectivity services, approximately 16% from value-added services and
approximately 7% from hosting services.
    
 
   
Our comprehensive suite of services enables our customers to easily and more
cost effectively address their networking needs without having to assemble
services from different vendors including resellers, Internet service providers
and information technology service providers. Our ability to provide "one-stop,"
customized network solutions facilitates our customers' ability to exploit
opportunities created by the Internet and other network systems on a timely
basis. Key advantages of our solution are:
    
 
   
High-Quality Performance and Reliability. We believe our high speed, private
switched network, coupled with our status as a Tier 1 Internet service provider,
enables us to provide our customers with fast and reliable data transmission
solutions. Our network operations center controls and monitors the switches,
routers and fiber-optic capacity for all data transmitted over our network 24
hours-a-day, seven days-a-week, allowing our staff to be immediately aware and
responsive to problems as they arise. This control of our network infrastructure
allows us to improve quality of service by minimizing network down time.
    
 
Management of Businesses' Critical and Support Operations. We offer our clients
the ability to outsource their network management operations to us. The services
we offer are performed by CRL, allowing us to control the quality of these
services. Through an off-site connection and our proprietary process, we can
manage our customers' internal networks as well as solving common problems that
our customers encounter. When end-users encounter a problem, we are able to
attach in real-time to our customer's desktop computers and servers to evaluate
and solve the problem as if located on-site at the customer's premises from our
facilities. In addition, we proactively monitor our customers' networks to
predict and, in some cases, prevent outages. The ability to manage our
customers' systems remotely enables us to offer custom, cost-effective network
management solutions. Businesses able to outsource many aspects of an
information technology department, from the "help desk" to enterprise-wide
server maintenance, can implement more complex applications without being
constrained by a lack of in-house computer professionals. We believe that our
services can enable our customers to implement selected intranet and extranet
business functions such as electronic commerce, free of any information
technology-related concerns. Our solutions allow our customers to more rapidly
grow their businesses with relatively modest initial and recurring information
technology-related expenditures.
 
Scalability and Flexibility. Our services are designed to be highly scalable and
flexible in order to meet the needs of our customers as their Internet, network
operations, and bandwidth requirements expand. Our network is designed to
provide our customers with available and uncongested bandwidth during network
traffic spikes by maintaining excess capacity and additional sources of
bandwidth. We also provide flexibility for our customers by supporting most
leading Internet hardware and software systems vendor platforms.
 
Bundled Service Offerings. Many enterprises today, especially those in the small
and medium-sized business market, often purchase services from a number of
vendors. For example, a company may receive its Internet access, file/Web server
connection and colocation space all from different vendors. We are able to offer
these services under customized packages through a single network connection and
also offer additional customer support and management expertise. We are able to
serve our customers' Internet and network management requirements without the
need for any additional service providers or connections.
 
STRATEGY
 
Our objective is to become the leading nationwide provider of customized
comprehensive Internet and network services to small and medium-sized
businesses. To achieve this objective, we intend to:
 
Further Capitalize On Our Existing Network Infrastructure. Through our direct
participation in the development and evolution of the commercial Internet, we
believe we are one of a limited number of fully-peered, Tier 1 Internet service
providers, which means we have legacy peering relationships with major Internet
service providers, including MCI WorldCom, Inc., Sprint Corporation and Cable &
Wireless P.L.C. As a result, we can transfer traffic efficiently to other
networks without paying the costs typically
 
                                       39
<PAGE>   44
 
associated with transport. During the past year, we became a licensed
competitive local exchange carrier in the State of California and have begun the
application process to become a competitive local exchange carrier in several
other states to complement our national backbone network. As a competitive local
exchange carrier in any particular state, we are able to purchase unbundled
network elements from the applicable regional Bell operating company operating
in that state rather than purchase retail local loops, resulting in a
significant cost savings to us. Also, our 15 years of experience developing our
network provides us with an in-depth understanding of the key elements of
network connectivity technology. As a result, over the past decade we have built
a national backbone network which currently consists of clear channel
fiber-optic capacity, Cascade switches and Cisco routers, which are controlled
through our network operations center. Our network is fast, secure and reliable,
as well as scalable to approximately one hundred times the traffic our current
customers generate. We intend to aggressively further capitalize on our existing
network infrastructure to cost-effectively expand our customer base and deliver
additional service to our customers.
 
   
Cross Sell Value-Added Services. We intend to capitalize on our existing
customer base and future customers by aggressively cross selling our value-added
services. We are committed to offering our customers reliable value-added
network services necessary to address their Internet and network management
requirements. We believe we are currently one of only a few companies remotely
managing the customer's network from the Internet all the way to the desktop.
Based on our existing network infrastructure and expertise, we are able to offer
these services continuously, reliably and on a cost effective basis. Through
acquisitions or development of relationships with providers of leading Internet
and other network technologies, we intend to enhance and increase the services
we offer to include other value-added services, such as enhanced network
security solutions, that address our customers' rapidly evolving critical
networking needs such as electronic commerce.
    
 
   
Provide Bundled, Comprehensive Networking Solutions. The fragmentation among
Internet and other network service providers has resulted in users often faced
with an overwhelming array of providers and services from which to choose. For
example, it is typical for a user to purchase local loop connectivity from a
regional Bell operating company or a competitive local exchange carrier, to
purchase Internet or other wide area network connectivity from a separate
Internet or other network service provider, and to purchase network services,
like remote management, systems integration and network security, from one or
more other companies. We believe the Internet and network service provider model
is evolving towards providers who are capable of providing comprehensive
solutions by bundling several or all of these functions efficiently, reliably
and on a cost effective basis. By combining our network infrastructure with our
existing and planned array of value-added networking services, we believe we are
well positioned to become one of the premier providers of comprehensive, bundled
networking solutions to small and medium-sized businesses. Additionally, we
believe that by offering bundled services, we can reduce customer loss, increase
network usage by existing customers, cross sell additional services to existing
customers and differentiate ourselves from our competitors.
    
 
   
Expand Customer Base and Sales Efforts. We intend to expand our customer base by
significantly increasing our direct and indirect sales forces as well as our
marketing efforts. Our direct sales force consisted of 18 persons in four sales
offices located in San Francisco, Sacramento, Anaheim and San Diego as of May
14, 1999. Our sales force is supported in their efforts by sales engineers and,
in many instances, our senior management. We intend to increase the number of
our sales offices and to significantly expand the size of our direct sales force
with the goal of having an effective selling presence in all major domestic
metropolitan and regional markets. In addition, we are exploring other
strategies to grow our direct sales force, including developing an inside sales
center to generate additional sales. We also intend to establish and expand
relationships with potential channel partners including hardware vendors,
value-added resellers, system integrators and Web hosting companies to leverage
their sales organizations and existing customer bases. By combining an expanding
direct sales force with the sales and marketing power of targeted channel
partners, we believe we will be able to effectively market and sell our
comprehensive networking solutions to a large potential customer base throughout
the United States.
    
 
                                       40
<PAGE>   45
 
Drive Revenue Growth by Increasing Hosting Services. Our physical presence at
key network access points provides attractive opportunities for many customers
to lease a portion of our space and purchase our colocation services. Our
hosting services permit our customers to install their equipment in close
physical proximity to major Internet access points. These connections at the
"edge" of the Internet are among the most reliable connections available. Our
presence in these locations, as well as the hardware we have installed there,
are designed to satisfy the electronic commerce and other requirements of the
most demanding Internet service providers, content providers, businesses and
government agencies. We intend to aggressively market our existing hosting
services to service these applications that are integral to business.
 
Accelerate Growth Through Targeted Acquisitions. The goal of our acquisition
strategy is to accelerate market penetration, build upon our core competencies
and expand our technical staff and sales force. We evaluate acquisition
candidates based on their fit with our overall business plan. When a candidate
is acquired, we will integrate our existing Internet and network connectivity
and value-added services with the service offerings of the acquired company and
use the acquired sales force and customer base to expand market opportunities.
The types of acquisitions we target include business Internet service providers
and companies with leading edge network connectivity and services technologies
that expand or enhance our existing services. Other types of targeted
acquisitions include local or regional business Internet service providers in
markets where we have established points of presence and would benefit from the
acquired company's local sales force and installed customer base through the
potential increase in our network utilization. Our recent acquisition of
Integral Networking Corporation, a systems integrator and developer of advanced
remote management services, is an example of the implementation of this
strategy.
 
SERVICES
 
   
We currently offer customized, comprehensive Internet and private network
solutions as well as network connectivity and value-added network services to
our customers. The diversity of services we offer permits each customer to
purchase individual services or a bundle of services that provide the most
efficient, reliable and cost effective solution to that customer's particular
needs.
    
 
  Network Connectivity Services
 
We are a national provider of connectivity services, including a variety of
dedicated and dial-up access and customized wide area networking solutions in
both stand-alone and bundled packages, which provide high-speed continuous
access to the Internet and other networks for our customers. We also provide
turnkey configuration solutions encompassing such services as domain name
registration, leased-line ordering and installation assistance, Internet
Protocol address assignment, router configuration, installation and management,
and technical consultation services. All of our connectivity customers receive
24 hour-a-day, seven day-a-week technical support.
 
   
Dedicated Access. We offer a broad line of high speed dedicated connectivity
services providing business customers with direct access to a full range of
Internet applications. Our dedicated access service provides companies with
robust, full-time, dedicated Internet connectivity in a range of access speeds,
including fractional T1 (from 64 kilobits per second up to 1.536 megabits per
second), T1 (1.536 megabits per second), T3 (45 megabits per second) and OC3
(155 megabits per second). We recently began offering digital subscriber line
services but have generated no revenues from these services. Our dedicated
Internet access is designed to help ensure bandwidth availability for priority
business applications. We believe that the traffic-management advantages of the
data switching technology deployed in our network provide our customers with
fully integrated Internet access and improved performance.
    
 
   
Customized Wide Area Networking Solutions. We are dedicated to providing
effective, privately managed wide area networking services. Our customized wide
area networking services combine the high performance of private lines with the
redundancy and bandwidth efficiency of a switched service. These wide area
networking services utilize the superior line management features and cost
effectiveness of data switching technology to provide a high performance and
secure wide area network that is scalable to our customers' growing network
demands.
    
 
                                       41
<PAGE>   46
 
The versatility of data switching technology allows our customers to easily
manage connectivity to multiple sites at a wide range of connection speeds. With
our customized wide area networking services, our engineers can help a customer
design a network to match the specific needs of the customer. Locations can be
partially or fully-meshed, offering route redundancy where necessary, and
allowing the customer to provision only the bandwidth they need.
 
By linking a wide area network with our Internet backbone, our customers can
optimize the bandwidth of their businesses and minimize expenses. We also offer
service level guarantees and extensive 24 hour-a-day, seven day-a-week customer
support with all of our integrated solution products.
 
   
Dial-Up Access. Our dial-up services offer a cost effective, entry-level
Internet solution that provides access to our advanced network backbone via
ordinary telephone lines at speeds of up to 56 kilobits per second using V.90
protocol.
    
 
Transit Service. Our transit service is designed for other, non-Tier 1 Internet
service providers whose networks are insufficient to transmit their customers'
data to the peering points of other networks. Our transfer service provides the
necessary link for these Internet service providers to transmit and receive data
to other networks on the Internet. This service can usually be installed in a
short time frame and gives our customers the flexibility they need to expand
their operations.
 
  Value-Added Services
 
We believe that businesses will continue to increase their use of the Internet
and private networks to remain competitive and will increasingly rely upon an
expanding range of value-added services to enhance productivity, reduce costs
and improve service reliability. We offer value-added services consisting of
remote management and systems integration services. As part of our strategic
plan, we also intend to offer network security services. In addition, to
capitalize on our technologically advanced, high-capacity network
infrastructure, we intend to continue developing new value-added services that
facilitate customer use of the Internet and other networks, including
bandwidth-intensive multimedia services such as video conferencing.
 
Remote Management Services. Traditional network management solutions outsourced
by businesses to network service providers require network problems to be
diagnosed and resolved at the customer's site, which often results in a lengthy
response time. Through our alarm notification capability, our monitoring service
immediately alerts us to our customers' network problems and details the reason
for the problem. We can manage our customers' internal networks and solving
common problems encountered by our customers through an off-site connection and
proprietary process which permits us to attach in real-time to our customers'
desktop computers and servers and evaluate and solve the problem as if located
on-site at our customers' premises. For these reasons, our remote management
services help to significantly reduce the necessary time and expense to diagnose
and resolve network and application-oriented problems. We structure our remote
management solution to be scalable to our customers' growing needs.
 
Systems and Network Integration. We provide integration services such as local
and wide area network configurations, Web and database server integration and
application-specific software solutions. We configure equipment by loading
customer programs, connecting equipment to the network and servicing hardware
and software. Our staff of engineers works closely with our customers to design,
assemble, configure and install a network architecture meeting our customers'
requirements.
 
Firewall Solutions. The sensitive nature of business Internet traffic demands
protection from unauthorized access. Our firewall solutions provide users with
secure access to the Internet as well as create an electronic barrier between a
customer's internal network and the public Internet. Our firewalls can also
restrict access between departments as well as track communications to ensure
that these communications follow a customer's established security procedures.
We work with a variety of vendors to provide customized firewall solutions for
each of our customers with specialized security needs.
 
                                       42
<PAGE>   47
 
  Hosting Services
 
Our existing network infrastructure, with its physical presence of network
equipment at major domestic network access points connecting all of the
interexchange points sanctioned by the National Science Foundation, provides an
easy and cost-effective solution for businesses to directly connect their
equipment through CRL to the Internet and other networks through our existing
nationwide backbone. Our colocation facilities allow our customers to install
their equipment as close to our network core as physically possible and are
configured in a manner to satisfy their networking and Internet operations that
are integral to business. Our infrastructure supports the Internet hardware and
software vendor platforms of most leading vendors, including Intel Corporation,
Microsoft Corporation and Sun Microsystems, Inc. The flexibility and scalability
of our network infrastructure permits our customers to purchase additional space
and power as needed, and to install and maintain their own hardware and
software. Our primary colocation facilities have uninterruptible AC or DC power
supply and back up equipment, fire suppression equipment, HVAC (heating,
ventilation and air conditioning), separate cooling zones, seismically-braced
racks and high levels of physical security, including card key access and video
surveillance.
 
Customers can select from a variety of options including shared rack facilities,
highly secure cabinets and enclosed cage facilities based upon their business
and technical requirements. Because many applications are dynamic and require
immediate hardware and software upgrades to maintain or achieve targeted service
levels, our colocation customers are offered 24 hour-a-day, seven day-a-week
physical and remote access to our facilities. We offer five options to satisfy
our customers' needs:
 
  - Switched Ethernet Service, which is a 10 megabit per second service
    connection onto our backbone router shared by other customers
 
  - Dedicated Ethernet Service, which is a 10 megabit per second service
    connection directly onto our backbone router not shared with any other
    customers
 
  - Switched Fast Ethernet Service, which is a switched ethernet service with a
    100 megabit per second Internet connection
 
  - Dedicated Fast Ethernet Service, which is a dedicated ethernet service with
    a 100 megabit per second Internet connection
 
  - Gigabit Fast Ethernet Service, which is a switched ethernet service with a
    1,000 megabit per second Internet connection
 
   
The majority of our revenues from hosting services during 1998 and the first
quarter of 1999 was generated by our Dedicated Fast Ethernet Service. While the
Switched Ethernet Service is currently used by the greatest number of our
hosting service customers, our customers are able to choose the speed that best
suits their diverse needs which is generally based on our customers' projections
of the quantity of data to be delivered from their respective Web sites.
    
 
CUSTOMERS
 
We have established a diverse customer base including Internet service and
content providers, businesses, government agencies and educational institutions
to whom we offer a wide range of services including Internet and network
connectivity, value-added and hosting services. In addition, we provide dial-up
Internet access services to consumers. No customer accounted for more than 2.6%
of our revenues in either 1997 or 1998. The revenues derived from our top 10
customers accounted for 16% of our total
 
                                       43
<PAGE>   48
 
   
revenues in 1998. The following is a representative list of customers as of May
14, 1999 including the customers from each area of business from which CRL
generated the largest amount of revenue in 1998 or that were among the top
twenty customers on the basis of revenues to CRL during the first quarter of
1999:
    
 
   
<TABLE>
    <S>                    <C>                    <C>                    <C>
    ------------------------------------------------------------------------------------------
    INTERNET SERVICE       INTERNET CONTENT       BUSINESSES ENGAGED     GOVERNMENTAL AGENCIES
    PROVIDERS              PROVIDERS              IN ELECTRONIC          AND EDUCATIONAL
    ---------------------  ---------------------  COMMERCE               INSTITUTIONS
                                                  ---------------------  ---------------------
     CTSNET                AdForce, Inc.          Citizen One Software   City of Vallejo
                           (Imgis.com)                                   Police
     GST Call America                             Intersat               Department
                           Digiweb Inc.           Interprovincial
     Harvard Net/Comstor                          Satellite Services     Pacific Union College
                           Information Access     Limited
     Interaccess Co.       Technologies, Inc.                            Tustin Unified School
                                                  Red Storm              District
     Internet America,     Pathlink Technology    Entertainment, Inc.
     Inc.                  Corporation                                   U.S. Department of
                                                  Ulead Systems, Inc.    Commerce
     Lightspeed Software   Walnut Creek
                           CDROM,                 Wilshire Associates    U.S. Federal Reserve
                           Incorporated           Incorporated           Board
    ------------------------------------------------------------------------------------------
</TABLE>
    
 
   
We aggressively pursue small and medium-sized business customers and seek to
provide them with connectivity and customized, cost-effective network management
solutions. The following are representative examples of the needs of our
customers and the core solutions we currently provide to our customers.
    
 
   
WALNUT CREEK CDROM, INCORPORATED: Walnut Creek CDROM, Incorporated is an
Internet-based freeware site using file transfer protocol, a tool used to
download files from the Internet and is our customer with the highest volume of
data. Typical of the demands of our customers who are high bandwidth content
users, Walnut Creek CDROM needed a reliable, Tier 1 provider to support its
traffic flows, which can often reach 98 megabits per second for a sustained
period of time. Walnut Creek CDROM uses our 100 megabits per second dedicated
fast ethernet service to connect directly to our core backbone at our San
Francisco network operations center. This high speed, direct Internet solution
meets our customer's bandwidth requirements and increases network reliability by
reducing the number of router hops to the Internet. We provide the 24
hour-a-day, seven day-a-week network management required to deliver Walnut Creek
CDROM's round-the-clock Internet applications.
    
 
   
J. LINNEMAN & CO.: J. Linneman & Co., a reinsurance agency associated with
Lloyd's of London, like many of our customers using our wide area network
services, required a reliable, private data switched network to handle sensitive
and mission-critical information. Without a managed network to facilitate
internal company communication, company officials were concerned that
underwriters could potentially over-insure national clients. Using our wide area
networking services, we developed and deployed a customized data network between
J. Linneman's headquarters in San Francisco and regional offices in Atlanta,
Chicago and Hartford. An Internet connection was also secured for each location.
In order to meet J. Linneman's demand for scalability and cost control, we
provide varying bandwidth to each city, with the option for an increase at any
time.
    
 
   
RIVER CITY PETROLEUM: River City Petroleum, Inc. is a fleet fueling and
wholesale fuels provider and is one of our largest remote management services
customers. River City Petroleum had built a local area network but had little
expertise to install new network elements, nor, like many of our value-added
service customers, did they want to oversee the day-to-day management and
administration activities a network requires. Using our proprietary remote
management services, we developed and deployed a customized solution for River
City Petroleum that reduces costly systems administrator fees and protects the
firm's mission-critical data by handing off the day-to-day management to us.
River City Petroleum can now focus on continuing its acquisition-oriented
growth, not its local area network.
    
 
                                       44
<PAGE>   49
 
   
These customers and the services which we provide them reflect our focus on
small and medium-sized businesses.
    
 
   
Our success substantially depends on the continued growth of our customer base
and retention of our customers. Our ability to attract new customers will depend
on a variety of factors, including the willingness of businesses to outsource
their mission-critical networking and Internet operations, the reliability and
cost effectiveness of our services and our ability to effectively market such
services. Substantially all of our customer contracts have terms ranging from
one to three years.
    
 
A failure on our part to develop these relationships could materially and
adversely impact our ability to generate increased revenues, which would
negatively affect our financial results. We also intend to significantly
increase our sales and marketing expenditures, which may not necessarily result
in increased sales of our services. For a detailed discussion of the risks, see
"Risk Factors -- We are subject to the risks from our lengthy sales cycle."
 
OUR NETWORK
 
Our network enables us to provide our current service offerings and is the
platform from which we intend to expand our service offerings. Our network is
comprised of several elements, including routers, switches, facilities and clear
channel fiber-optic capacity, which together provide a fast, secure, high
quality network capable of reducing the risk of outages resulting from hardware
or software faults. In addition, we have both public and private peering
agreements allowing us to connect directly with all major Internet service
providers. The following map illustrates our network and peering relationships:
 
[Graphics depict a map of United States Entitled "Networks Built for Business"
with CRL logo, reflecting CRL's network connecting cities nationwide, including
symbols designating CRL's Regional Hubs, CRL Points of Presence or Service
Areas, Internet Protocol Backbone and Switched Backbone]
 
                                      LOGO
 
                                       45
<PAGE>   50
 
  Network Equipment
 
   
Our network consists of 23 Cascade data switches and 54 Cisco routers located
throughout our points of presence. Routers are typically used as "Layer 3"
networking devices, which must disassemble each packet of data they receive,
make a policy-based routing destination decision according to Internet
Protocol-based routing tables, and then reassemble the packet and send it to the
destination determined by the routing protocol then in effect. These routing
protocol tables must be frequently updated by the router to reflect changes in
the tables arising from numerous events, including changes in peering
relationships.
    
 
Switches are typically "Layer 2" networking devices, which means they make
connections a layer below the Internet. Switches determine routing destinations
based on the Layer 2 addresses attached to each packet without disassembling the
data packets. By operating one layer below the Internet without the need to
disassemble packets, switches can significantly reduce delay and data
degradation, as well as increase security. As a result of the complexity and
multitude of networks that transport information over the Internet, switches are
often an essential component to deliver information in the fastest and most
reliable manner.
 
   
We have invested significant capital in switches, which are more expensive than
routers. Switches, when properly configured with routers, enhance the speed and
reliability of networks by:
    
 
  - minimizing the number of connections, or hops, a data packet must take,
    which minimizes the time required to deliver the packet
 
  - reducing the number of times a packet must be disassembled by routers, which
    reduces the opportunities for router errors
 
  - decreasing the instances where packets must travel over public networks,
    which decreases the likelihood of delay and data degradation
 
Our national network of switches and routers permits us to customize our network
connectivity by creating an efficient "virtual circuit" for each customer, a
logical connection between the physical devices transmitting, directing and
receiving the data packets.
 
Switches have other advantages over routers as well. If a network outage occurs,
our Cascade switches can re-route data between our routers so that our network
does not experience an interruption of service during the outage. This process
allows our routers to forward more packets without making complex routing
decisions. Our Cascade switches are multi-protocol capable, allowing us to
operate Internet Protocol and other protocols as required.
 
  Network Facilities
 
   
We have constructed a national backbone network with points of presence in 30
cities including 16 of the largest 20 cities in the United States. We control
our points of presence, including our network operations center in San
Francisco, under leases with terms ranging from month-to-month to six years,
that allow us to control the quality and security of the operations. We can
upgrade our points of presence as desired and are able to significantly reduce
the length of time of network interruptions because we control our facilities.
We have points of presence in major population centers around the United States,
including San Francisco, Los Angeles, San Diego, Phoenix, Denver, Dallas, Vienna
(Virginia) and Chicago, which represent the locations of the largest volume of
our data traffic. We also have points of presence in 22 other cities throughout
the United States.
    
 
Many of our points of presence are located in, or in close physical proximity
to, "carrier hotels." Carrier hotels are facilities where major interexchange
carriers and Internet service providers have physical points of presence. Our
actual location in, or in close proximity to, the same building in which the
switches and routers of these carriers and providers are located offers us the
ability to quickly and easily interconnect our equipment to theirs by our simply
installing a "pipe" connection between our equipment and theirs. Without this
close physical proximity, the services and expense of a third party, like an
incumbent local exchange carrier or competitive access provider, would be
necessary to connect us to the interexchange
                                       46
<PAGE>   51
 
   
carrier or other provider. Our leases in these carrier hotels have expiration
terms ranging from December 2000 to 2003, except for one lease, which expires in
June 1999, but has a 2-year renewal option that we intend to exercise. Based
upon our discussions with these carrier hotels or from our customers who have
recently tried to rent space at these carrier hotels, we believe that at least
half of the carrier hotels have limited availability for new lessees due to a
lack of physical space, lack of infrastructure required for additional lessees
or the carrier hotels' desire not to admit additional lessees because of the
nature of such lessees' equipment and its requirements for the leased space.
Because of this limitation, we have an advantage over many of our competitors
who are unable to lease space in the facility or in close enough proximity to
the facility and need the services of a third party to provide similar
connectivity.
    
 
As we expand, we expect to increase our number of points of presence. Each point
of presence is monitored through our network operations center on a 24
hour-a-day, seven day-a-week basis, which allows us to rapidly identify and
resolve any service interruptions. All of our points of presence are connected
directly to local operators including regional Bell operating companies and
competitive local exchange carriers. Where practical, our local connections are
made at the DS-3 level, which allows us to install up to 28 customers at a time
on an expedited basis without the need for any wiring or physical changes within
our points of presence.
 
   
We currently lease clear channel fiber-optic capacity on networks from companies
such as Qwest Communications Corporation and IXC Communications, Inc. We have
chosen short-term leases of fiber-optic capacity as opposed to acquiring
indefeasible rights of use for fiber-optic capacity due to rapidly declining
bandwidth costs. We believe that our choice has had a significant impact on our
ability to maintain a relatively low cost structure network. Through our leased
fiber-optic capacity, we are able to easily create customized data switched
networks for ourselves or others. As we expand and seek additional leased
fiber-optic capacity, we believe that capacity will be available. Several major
fiber construction projects have commenced in the domestic United States, and
frequently the developer of a fiber route will exchange access with other fiber
carriers in a "route swap." Such "route swaps" bring a new vendor of fiber along
a particular route to the marketplace, and ultimately serve to drive the price
of fiber-optic capacity down.
    
 
Our network operations center located in San Francisco is operated on a 24
hour-a-day, seven day-a-week basis. This network operations center functions
primarily to ensure that our backbone network is operational at an optimal level
and has the ability to ingress and egress traffic. In addition, the center
monitors the connections between the backbone network and the customer. If the
customer's network fails, we notify the customer of their network failure and
begin working immediately to correct the failure.
 
  Peering Relationships
 
   
We have both public and private peering relationships. A peering relationship
permits the direct connection of two providers to exchange data without the
necessity of paying a third party. We believe we were one of the first companies
to provide commercial Internet access to both consumers and corporations. As the
Internet and Internet interexchange points have evolved, we have been well
positioned to become and have become a significant peering partner. We currently
have public peering at the major interexchange points sanctioned by the National
Science Foundation including the following locations where we experience the
highest volume of data exchange:
    
 
   
  - MAE East in Vienna, Virginia
    
 
   
  - MAE West at Nasa Ames Research Center in Palo Alto, California
    
 
   
  - the Fix West Federal Interconnect Exchange at Nasa Ames Research Center in
    Palo Alto, California
    
 
   
  - the Sprint Network Access Point in Pensauken, New Jersey
    
 
   
  - the AADS Network Access Point in Chicago, Illinois
    
 
   
  - the Pacific Bell Network Access Point in San Francisco, California
    
 
   
  - the Pacbell Switched Multimegabit Data Service Cloud in Northern California
    
 
                                       47
<PAGE>   52
 
   
  - the Commercial Internet Exchange router in Santa Clara, California
    
 
As is typical industry practice, we have reciprocal peering relationships with
other Internet service providers that offer significant traffic exchange. Our
open network policy allows us to make cost-based peering decisions between
public and private peering points to route traffic efficiently.
 
Subject to few exceptions, our peering relationships generally are not subject
to any written agreements and could be terminated at any time. For those peering
arrangements subject to contracts, there are no minimum or fixed charges for
data exchange. Such agreements generally do impose minimum usage requirements at
levels which CRL has in the past always exceeded. However, these contracts can
be terminated by either party where the peering could have a detrimental impact
on a party's network. Any network may refuse to peer with any other network. As
the Internet has evolved, network service providers have determined whether they
will recognize a second provider as a peer based on the impact on its customers
of failing to do so. The first provider makes this determination by analyzing
how many customers of the second provider rely on it as their sole source of
connectivity to the Internet. If the second provider has customers who look to
that provider as their sole source, and the first and second providers refuse to
peer with one another, the portions of each provider's customer base that are
sole source will be unable to connect with each other over the Internet. Another
basis upon which a network may refuse to peer with another is to avoid peering
with a network run by inexperienced technicians which can result in data being
sent to the wrong location.
 
As a result of our early involvement in the Internet, we are a Tier 1 Internet
service provider and have peering relationships with other Tier 1 Internet
service providers.
 
SALES AND MARKETING
 
   
Our sales and marketing objective is to achieve broad market penetration and
increase brand name recognition among small and medium-sized businesses,
Internet service and content providers, government agencies and educational
institutions on a national basis through the expansion of our sales organization
and extensive marketing activities. As of May 14, 1999, we employed 25 persons
in sales and marketing. We have developed a multi-tiered sales strategy to sell
and market to our target markets through direct sales, Internet alliances,
channel relationships and customer referrals.
    
 
Direct Sales. Our direct sales force currently consists of highly trained
individuals located in San Francisco, California and three other sales offices
in the United States. Approximately 99% of our sales are currently generated by
our direct sales force. Our sales force is supported in their sales efforts by a
sales engineer and, in many instances, by senior management. We believe that the
integration of our sales engineers with our sales account managers assists both
the establishment of customer relationships as well as the migration of
customers to increased use of our services through cross selling of our
value-added services. We have developed programs to attract and retain high
quality, motivated sales representatives with the necessary technical skills,
consultative sales experience and knowledge of their local markets. These
programs include technical and sales process training and instruction in
consultative selling techniques. We have also developed sales compensation plans
that provide significant incentives for exceeding performance targets. We are
actively seeking to expand our direct sales force and sales engineering staff.
 
Our direct sales process consists of a multifaceted approach to lead generation
and includes direct mail, advertising, Web-based marketing, networking and cold
calling. We target small and medium-sized businesses nationwide with particular
emphasis on those geographic areas where we have points of presence. Prospects
are qualified through a needs-based consultative sales process and, depending
upon the complexity of the client need, sales engineers and senior management
are called upon to develop solutions.
 
   
Develop Channel Relationships. We are in the process of developing relationships
with potential channel partners including hardware vendors, value-added
resellers, system integrators and Web hosting companies to leverage their sales
organizations. A channel partner is a CRL customer who acts as a reseller of our
services. Compensation received by our channel partners may consist of a
one-time payment based upon a
    
 
                                       48
<PAGE>   53
 
   
percentage of the price of the services sold, a one-time payment and a residual
percentage of CRL's monthly customer billings, or payment based upon the
differential between the price at which the channel partner sold the services
and CRL's price for such services. We began our channel partnerships in the
first quarter of 1999 and had contracts with twenty partners at May 14, 1999. We
believe that by relying upon the sales forces of these companies, we can attract
customers in a cost-effective manner, as well as provide co-branded Internet and
network management service offerings for our channel partners. We are actively
engaged in hiring experienced channel managers to focus exclusively on
developing these relationships.
    
 
By providing Internet and network management solutions, our partners can satisfy
the demands of their customers, as well as create opportunities for new
business. We will offer the expertise involved with a complex networking
infrastructure that will allow our partners to focus on their own areas of
expertise. This relationship will provide our partner with the tools needed to
bundle Internet access with a variety of services provided by us or our partner,
and gain the competitive edge needed to attract and maintain more customers,
increase market share and grow.
 
   
Because we realize that most companies have specific operating requirements, we
have designed a flexible program to accommodate specific needs. We will both
provide the necessary network connectivity and serve as a technical resource for
our partners. Engineers in our networking operating center monitor the network
around the clock to ensure the highest quality Internet, remote management
service and hosting services and technical support for our partner and its
customers. Instead of spending time and money building a national network
infrastructure, partners will be able to simply add Internet, remote management
service and hosting services to their existing products by becoming part of our
network. By bundling Internet, remote management service and hosting services
with existing products, the partner will be able to offer a high quality network
connection to the Internet with the ease of one bill and one point-of-contact
for customers.
    
 
Marketing. Our marketing program is intended to build national and local
strength and brand awareness. We use print advertising and direct mail in
targeted markets and publications to enhance awareness and acquire leads for our
direct sales force. We also use telemarketing programs, Web marketing and joint
promotional efforts.
 
CUSTOMER SUPPORT
 
   
We offer a high level of customer service and quality assurance by understanding
the technical requirements and business objectives of our customers and
addressing their needs proactively on an individual basis. By working closely
with our customers, we are able to enhance the performance of our customers'
Internet and network operations, avoid downtime, rapidly resolve problems and
make appropriate adjustments in services as customer needs change over time. We
work with our customers over time to ensure that we are offering the appropriate
types and quality of service. As of May 14, 1999, we had 14 employees dedicated
to customer service and quality assurance.
    
 
Upon receipt of a signed sales contract, the salesperson prepares a sales order
form and sends it to our provisioning department which, after initial review,
forwards the sales order to our finance department for approval and set up on
the billing system.
 
   
Within the provisioning department the sales order is logged into a tracking
system that is reviewed by management on a weekly basis. The provisioning
department arranges all internal and external activities to complete the
installation of the sales order. As necessary, they arrange for purchase,
delivery and setup of equipment, arrange for necessary circuits with various
telecommunications vendors and complete necessary changes to our network through
our engineering department.
    
 
Upon completion of all necessary installations, the customer is contacted for
testing and acceptance. Customer information is entered into an operations
database and our finance department is notified to begin billing.
 
Ongoing customer service is provided by our technical support group. Our network
operations center operates and is available for technical support 24
hours-a-day, seven days-a-week, 365 days-a-year. They
                                       49
<PAGE>   54
 
monitor customer circuits real-time on the same basis. As problems are
identified or customer calls are received they are logged into a trouble ticket
system and worked through to resolution. Inquiries can be accepted by voice or
e-mail and are typically answered within a few minutes or hours of receipt.
Resolution times vary depending upon the problem's severity and complexity.
Resolution times that exceed a few hours are escalated to management.
 
Our enhanced customer support systems monitor and track support questions from
our customers. These systems were developed to help the network engineers track
problems efficiently and reliably. They provide an accurate history of each
account enabling the engineers to quickly access support inquiries and provide
us with valuable historical data about each account. Every time a support
question is called in, a historical record, commonly referred to as a
"trouble-ticket," is opened. Until the problem is resolved, the trouble-ticket
remains open. When necessary, the trouble-ticket is escalated in order to reach
the fastest possible resolution. The escalation chart is made available to our
customers.
 
COMPETITION
 
Our competitors generally may be divided into four principal groups:
 
   
  - telecommunications carriers including regional Bell operating companies
    
 
  - Internet service providers
 
  - network and system integrators
 
  - online network service providers
 
Telecommunications Carriers. Many long distance companies including AT&T
Corporation, Cable & Wireless P.L.C., Sprint Corporation, MCI WorldCom, Inc.,
Qwest Communications International Inc., Level 3 Communications Inc., IXC
Communications, Inc. and Frontier Corporation offer Internet access services and
network services. Recent reforms in federal regulation of the telecommunications
industry have created greater opportunities for incumbent local exchange
carriers such as PacBell Internet, and competitive local exchange carriers such
as WinStar Communications, Inc., to enter the Internet connectivity market. We
believe that there is a move toward horizontal integration by these kinds of
carriers through acquisitions of, joint ventures with, or the wholesale purchase
of connectivity from, Internet service providers in order to meet the Internet
connectivity requirements of their business customers. Accordingly, we expect
that we will experience increased competition from the traditional
telecommunications carriers. In addition to their greater network coverage,
market presence and financial, technical and personnel resources, many of these
telecommunications carriers also have large existing commercial customer bases.
 
Internet Service Providers. Our competitors include Internet service providers
with a national or global presence that focus on business customers, such as
PSINet, Inc. and UUNET Technologies, Inc. We also compete with Internet service
providers that cluster in major markets and regional Internet service providers
that have facilities in key metropolitan areas, including Verio, Inc., and
specialized Internet service providers such as Concentric Network Corporation,
Exodus Communications, Inc., AboveNet Communications Inc. and AppliedTheory
Corporation, as well as emerging Internet service providers. While we believe
that our state-of-the-art network infrastructure, quality customer service and
proactive support teams distinguish us from most Internet service providers,
many of these competitors have greater financial, technical, and marketing
resources, larger customer bases, greater name recognition and more established
relationships in the industry.
 
Network and System Integrators. We compete with large information technology
outsourcing firms such as the Big 5 accounting firms, EDS Corp., Perot Systems
Corporation and similar firms. These firms tend to focus on large customers who
outsource entire information technology functions or re-engineer their
information technology infrastructure. We believe that we are distinguished from
these competitors because we specialize in Internet Protocol-based integration
for the businesses and government agencies focused on Internet and other network
operations. We also compete with smaller network and systems integrators.
However, we believe that our expertise with large and complex systems, our
methodology and
 
                                       50
<PAGE>   55
 
our ability to offer one-stop solutions for integration, data center services
and network connectivity set us apart from this segment of the competition.
 
Online Network Service Providers. In providing consumer Internet access, we
compete with online network service providers such as America Online,
Compuserve, MSN (The Microsoft Network) and Prodigy Communication Corporation.
The services offered by these companies often includes access to content
specific to each company. While we believe that our consumer products are
competitively priced and that our support and proactive network maintenance give
us an advantage over our competitors, many of these competitors have greater
financial, technical and marketing resources, larger customer bases, greater
name recognition, wider customer reach and more established relationships in the
industry.
 
We believe the primary competitive factors in our markets are:
 
  - a reliable and powerful network infrastructure
 
  - a broad range of services and technical expertise
 
  - quality of customer service
 
  - experienced and knowledgeable sales force and engineers
 
Many of our competitors may be able to develop and expand their communications
and network infrastructures more quickly, adapt more swiftly to new or emerging
technologies and changes in customer requirements, take advantage of acquisition
and other opportunities more readily, and devote greater resources to the
marketing and sale of their services than we can. In addition, we believe
competition in our markets will intensify as new competitors enter our markets
which have no significant barriers to entry. In addition, some of our
competitors may bundle other services and products, offer their services at more
attractive prices, or offer other high speed data services using alternative
delivery methods.
 
We do not currently compete internationally. If the ability to provide Internet
access internationally becomes a competitive advantage in the Internet access
industry, we may be at a competitive disadvantage relative to our competitors.
 
For more information concerning the competition we face and the factors
affecting our ability to compete, see "Risk Factors -- The markets for our
services is characterized by many competing technologies, and the technologies
on which our services are based may not compete effectively," "-- The markets in
which we compete are highly competitive and we may not be able to compete
effectively especially against companies with greater resources" and "-- We may
have to reduce the cost of our services to remain competitive."
 
INTELLECTUAL PROPERTY RIGHTS
 
   
We believe our success depends more upon our technical expertise than our
proprietary rights. We rely upon a combination of copyright, trademark and trade
secret laws and contractual restrictions to protect our proprietary technology
and rights in our services. We have no patented technology that would preclude
or inhibit competitors from entering our market. We have entered into
confidentiality and invention assignment agreements with all of our Integral
Networking Corporation employees and our technical personnel at CRL, and
nondisclosure agreements with our suppliers, distributors and appropriate
customers to control access to and disclosure of our proprietary information.
Despite these precautions, a third party could potentially copy or otherwise
obtain and use our products or technology without authorization or to develop
similar technology independently. We cannot assure you that such measures have
been, or will be, adequate to protect our proprietary technology or deter
third-party development of similar technologies. We also rely on technologies
that we license from third parties such as network management software. We do
not license any other technology that is not generally available. These
third-party technology licenses may not always continue to be available to us on
commercially reasonable terms. The loss of such technology could require us to
obtain substitute technology of lower quality or performance standards or at
greater cost, which could affect us in a material adverse manner. To date, we
have not been notified that we infringe the proprietary rights of third parties,
but there can be no assurance that third parties will not claim infringement by
us. We expect that participants in our markets will be increasingly subject to
    
                                       51
<PAGE>   56
 
infringement claims as the number of technologies and competitors in our
industry grows. Any such claim, whether meritorious or not, could be time
consuming, result in costly litigation, cause service delays or require us to
enter into royalty or licensing agreements. Such royalty or licensing agreements
might not be available on terms acceptable to us or at all. As a result, any
such claim could have a material adverse effect upon our business, results of
operations and financial condition.
 
GOVERNMENT REGULATION
 
Currently only a small body of laws and regulations directly apply to access to
or commerce on the Internet. However, due to the Internet's increasing
popularity and use, laws and regulations may be adopted at the international,
federal, state and local levels with respect to the Internet, covering issues
such as user privacy, freedom of expression, pricing, characteristics and
quality of products and services, taxation, advertising, intellectual property
rights, information security and the convergence of traditional
telecommunications services with Internet communications. Moreover, a number of
laws and regulations have been proposed and are currently being considered by
federal, state and foreign legislatures with respect to such issues. The nature
of any new laws and regulations and the manner in which existing and new laws
and regulations may be interpreted and enforced cannot be fully determined. The
adoption of any future laws or regulations might decrease the Internet's growth,
decrease demand for our services, impose taxes or other costly technical
requirements or otherwise increase the cost of doing business or in some other
manner have a material adverse effect on us. In addition, applicability to the
Internet of existing laws governing issues such as property ownership,
copyrights and other intellectual property issues, taxation, libel, obscenity
and personal privacy is uncertain. As our services are available over the
Internet in multiple states, and as we facilitate sales by our customers to end
users located in such states, such jurisdictions may claim that we are required
to qualify to do business as a foreign corporation in each such state. Any such
new legislation or regulation, or the application of laws or regulations from
jurisdictions whose laws may not currently apply to our business, could have a
material adverse effect on us.
 
The Telecommunications Act of 1996 imposes criminal liability on persons sending
or displaying in a manner available to minors indecent material on an
interactive computer service such as the Internet and on an entity knowingly
permitting facilities under its control to be used for such activities. Sections
of the Communications Decency Act of 1996 that, among other things, proposed to
impose criminal penalties on anyone distributing "indecent" material to minors
over the Internet, were held to be unconstitutional by the United States Supreme
Court. Legislation similar to the Communications Decency Act could subject us
and/or our customers to potential liability, which in turn could have an adverse
effect on us. Additionally, the Child Online Protection Act of 1998 prohibits
and imposes criminal penalties and civil liability on anyone engaged in the
business of selling or transferring, by means of the World Wide Web, material
that is harmful to minors without restricting access to such material by persons
under seventeen years of age. Numerous states have adopted or are currently
considering similar types of legislation. The imposition upon us, our customers
or other persons of potential liability for such materials carried on or
disseminated through our systems could require us to implement measures to
reduce our exposure to such liability. Such measures may require the expenditure
of substantial resources or the discontinuation of some of our product or
service offerings. Further, the costs of defending against any such claims and
potential adverse outcomes of such claims could have a material adverse effect
on us. The Child Online Protection Act has been challenged by civil rights
organizations in part on the grounds that it violates the First Amendment. A
United States District Court has preliminary enjoined enforcement of the law
until final resolution of the case. A similar statute was held unconstitutional
by the United States Supreme Court in 1997.
 
The law relating to the liability of online service providers, private network
operators and Internet service providers for information carried on or
disseminated through the facilities of their networks is continuing to evolve
and remains unsettled. In the past, one federal district court in the northern
district of California, where we conduct business, has ruled that Internet
service providers could be found liable for copyright infringement as a result
of information disseminated through their networks. We cannot assure you that
similar claims will not be asserted in the future. Federal laws have been
enacted, however, which provide
 
                                       52
<PAGE>   57
 
Internet service providers with immunity from publisher or speaker liability for
information that is disseminated through their networks when they are acting as
mere conduits of information. A Federal Court of Appeals has recently held that
the Telecommunications Act creates immunity from liability on the part of
Internet service providers for libel claims arising out of information
disseminated over their services by third-party content providers. In addition,
the Digital Millennium Copyright Act, enacted in 1998, creates a safe-harbor
from copyright infringement liability for Internet service providers if:
 
   
  - the transmission was initiated by or at the direction of a person other than
    us
    
 
   
  - the transmission or routing is carried out through an automatic technical
    process without selection of the material by us
    
 
   
  - we do not elect the recipients of the material except as an automatic
    response to the request of another person
    
 
   
  - a copy of the material in the course of intermediate or transient storage is
    maintained on the system in a manner accessible to no one other than the
    recipients or for a period longer than is reasonably necessary for the
    transmission or routing to occur and
    
 
   
  - no modification of the transmission's content occurs through our system
    
 
We cannot assure you, however, that the Digital Millennium Copyright Act or any
other legislation will protect us from copyright infringement liability. We
maintain general liability insurance. However, any imposition of liability on us
for alleged negligence, intentional torts such as infringement, or other
liability could have a material adverse effect on us.
 
Both the provisioning of Internet access service and the provisioning of
underlying telecommunications services are affected by federal, state and local
regulation. The Federal Communications Commission exercises jurisdiction over
all facilities of, and services offered by, telecommunications carriers to the
extent that they involve the provision, origination or termination of
jurisdictionally interstate or international communications, including by
competitive local exchange carriers. The state regulatory commissions retain
jurisdiction over the same facilities and services to the extent they involve
origination or termination of jurisdictionally intrastate communications. In
addition, as a result of the passage of the Telecommunications Act, state and
federal regulators share responsibility for implementing and enforcing the
domestic pro-competitive policies of the Telecommunications Act. In particular,
state regulatory commissions have substantial oversight over the provision of
interconnection and non-discriminatory network access by incumbent local
exchange carriers. Municipal authorities generally have some jurisdiction over
access to rights of way, franchises, zoning and other matters of local concern.
 
Government agencies do not regulate Internet operations distinctly from their
regulation of businesses generally. However, the Federal Communications
Commission continues to review its regulatory position on the usage of the basic
network and communications facilities by Internet and other network service
providers. In an April 1998 report, the Federal Communications Commission
determined that Internet service providers should not be treated as
telecommunications carriers and should consequently not regulated. However, this
report stated that it expected the regulatory status of Internet service
providers in the future to continue to be uncertain. The report concluded that
some services offered over the Internet, such as phone-to-phone Internet
protocol telephony, may be functionally indistinguishable from traditional
telecommunications service offerings, and their non-regulated status may have to
be re-examined.
 
Changes in the regulatory structure and environment affecting the Internet
access market, including regulatory changes that directly or indirectly affect
telecommunications costs or increase the likelihood of competition from regional
Bell operating companies or other telecommunications companies, could have an
adverse effect on our business. Although the Federal Communications Commission
has decided not to allow local telephone companies to impose per-minute access
charges on Internet service providers, and that decision has been upheld by the
reviewing court, further regulatory and legislative consideration of this issue
is likely. In addition, some telephone companies are seeking relief through
state regulatory agencies. Such rules, if adopted, are likely to have a greater
impact on consumer-oriented Internet access providers than on
 
                                       53
<PAGE>   58
 
business-oriented Internet service providers, such as us. Nonetheless, the
imposition of access charges would affect our costs of serving dial-up customers
and could have a material adverse effect on us.
 
   
We have recently received approval to operate as a competitive local exchange
carrier in California and intend to apply to receive similar status in other
states. Where we have competitive local exchange carriers status, regional Bell
operating companies are obligated to provide us with local connectivity loops at
prices that are substantially below the prices paid by Internet and other
network service providers that are not competitive local exchange carriers. As a
provider of domestic basic telecommunications services, particularly competitive
local exchange services, we could become subject to further regulation by the
Federal Communications Commission and/or other regulatory agencies, including
those at the state and local levels. The Telecommunications Act has caused
fundamental changes in the markets for local exchange services. In particular,
the Telecommunications Act and the Federal Communications Commission rules
issued pursuant to it mandate competition in local markets and require that
incumbent local exchange carriers interconnect with competitive local exchange
carriers. Under the provisions of the Telecommunications Act, the Federal
Communications Commission and state public utility commissions share
jurisdiction over the implementation of local competition, the Federal
Communication Commission was required to promulgate general rules and the state
commissions were required to arbitrate and approve individual agreements.
However, the Federal Communication Commission interconnection rules implementing
the Telecommunications Act were appealed and the U.S. Court of Appeals for the
Eighth Circuit issued a decision vacating the FCC's pricing rules, as well as
other portions of the FCC's interconnection rules, on the grounds that the FCC
had improperly intruded into matters reserved for state jurisdiction. On January
25, 1999, the Supreme Court largely reversed the Eighth Circuit's order, holding
that the FCC had general jurisdiction to implement local competition provisions
of the Telecommunications Act. In so doing, the Supreme Court stated that the
FCC has authority to set pricing guidelines for unbundled network elements, to
prevent incumbent local exchange carriers from disaggregating existing
combinations of network elements, and to establish "pick and choose" rules
regarding interconnection agreements (which would permit a carrier seeking
interconnection to "pick and choose" among the terms of service from other
interconnection agreements between the incumbent local exchange carriers and
other competitive local exchange carriers). This action reestablishes the
validity of many of the FCC rules vacated by the Eighth Circuit. Although the
Supreme Court affirmed the FCC's authority to develop pricing guidelines, the
Supreme Court did not evaluate the specific pricing methodology adopted by the
FCC and has remanded the case to the Eighth Circuit for further consideration.
In its decision, however, the Supreme Court also vacated the FCC's rule that
identifies the unbundled network elements that incumbent local exchange carriers
must provide to competitive local exchange carriers. The Supreme Court found
that the FCC had not adequately considered certain statutory criteria for
requiring incumbent local exchange carriers to make those network elements
available to competitive local exchange carriers and must reexamine the matter.
Thus, while the Supreme Court resolved many issues, including the FCC's
jurisdictional authority, other issues remain subject to further consideration
by the courts and the FCC. The Eighth Circuit has not yet reinstated the FCC's
rules that were affirmed by the Supreme Court, and several incumbent local
exchange carriers have asked the Eighth Circuit not to reinstate those rules
until further legal challenges have been resolved. We cannot predict the
ultimate disposition of those matters. The possible impact of this decision,
including the portion dealing with unbundled network elements, on existing
interconnection agreements between incumbent local exchange carriers and
competitive local exchange carriers or on agreements that may be negotiated in
the future also cannot be determined at this time.
    
 
A critical issue for competitive local exchange carriers is the right to receive
reciprocal compensation for the transport and termination of Internet traffic.
We believe that, under the Telecommunications Act and current Federal
Communications Commission rules, competitive local exchange carriers are
entitled to receive reciprocal compensation from incumbent local exchange
carriers. However, some incumbent local exchange carriers have disputed payment
of reciprocal compensation for Internet traffic, arguing that Internet service
provider traffic is not local traffic. Most states have required incumbent local
exchange carriers to pay Internet service providers reciprocal compensation.
However, federal regulators and some state regulators are currently considering
the proper jurisdictional classification of local calls placed to an Internet
service provider and whether Internet service provider calling triggers an
obligation to pay reciprocal compensation. On October 30, 1998, the Federal
Communications Commission determined that
                                       54
<PAGE>   59
 
dedicated digital subscriber line service is an interstate service and properly
tariffed at the interstate level. On February 25, 1999, the Federal
Communications Commission ruled that calls to Internet service providers for
Internet access were long distance, not local, calls. However, the ruling upheld
existing reciprocal compensation agreements in some states, including
California. Because of our reciprocal compensation agreement with Pacific Bell,
we do not expect this ruling will have a material effect on our operating costs
in the near future. If incumbent local exchange carriers charge fees for
carrying Internet traffic and Internet access becomes more expensive in the
longer term, this ruling may have an adverse effect on our potential future
revenues as well as increase our costs.
 
As we become a competitor in local exchange markets, we will become subject to
state requirements regarding provision of intrastate services. These
requirements may include the filing of tariffs containing rates and conditions.
As a new entrant without market power, we expect to face a relatively flexible
regulatory environment. Nevertheless, it is possible that some states could
impose a variety of requirements on our operations, such as the approval of the
public utilities commission for the issuance of debt or equity or other
transactions that would result in a lien on our property used to provide
intrastate services.
 
EMPLOYEES
 
   
As of May 14, 1999, we had 61 employees, of which 25 were employed in sales and
marketing, 8 were assigned to engineering and service development, 14 were
employed in customer service and technical support, and 14 were in finance and
administration. We believe that our future success will depend in part upon our
continued ability to attract, hire and retain qualified personnel. The
competition for such personnel is intense, and we may not be able to identify,
attract and retain such personnel in the future. None of our employees is
represented by a labor union and management believes that our employee relations
are good.
    
 
FACILITIES
 
   
Our executive offices are located in San Francisco, California and consist of
approximately 4,650 square feet that are leased pursuant to an agreement that
expires in August 1999 with a three year renewal option. Additionally, we
sublease additional offices in San Francisco, California of approximately 3,500
square feet pursuant to an agreement that expires in September 1999. We also
have a network operating center in San Francisco of approximately 4,000 square
feet under a lease expiring in 2005. Beginning in the third quarter 1999, we
intend to commence relocating and consolidating our San Francisco operations. We
intend to complete the relocation and consolidation in the fourth quarter of
1999. We are also currently in negotiations with the lessor of our San Francisco
network operating center to lease additional space. We also intend to complete
the expansion of our main operational center in Sacramento, California in the
fourth quarter of 1999. This Sacramento facility consists of 4,000 square feet
under a lease agreement that expires in 2001. In addition, we lease
approximately 1,100 square feet in Vienna, Virginia (a major network access
point often referred to as MAE East) under an agreement that expires in 2000
with a five year renewal option. We also lease approximately 1,400 square feet
in the One Wilshire Building in Los Angeles under an agreement that expires in
2001. We lease facilities in 26 other cities throughout the United States for
our sales offices and regional network operating centers.
    
 
                                       55
<PAGE>   60
 
                                   MANAGEMENT
 
DIRECTORS, EXECUTIVE OFFICERS AND KEY EMPLOYEES
 
Our directors, director nominees, executive officers and key employees are as
follows:
 
   
<TABLE>
<CAPTION>
               NAME              AGE                         POSITIONS
               ----              ---                         ---------
    <S>                          <C>   <C>
    DIRECTORS AND EXECUTIVE
      OFFICERS:
    James G. Couch.............  34    President, Chief Executive Officer, Chairman of the
                                       Board and Secretary
    Robert B. Murphy, Jr.......  47    Executive Vice President and Chief Financial Officer
    John A. Blair..............  52    Vice President of Business Development
    Sam Traznik................  34    Vice President of Direct Sales
    Steven T. Stenberg.........  38    Director and Member of the Audit and Compensation
                                         Committees
    Jack M. Fields, Jr.........  47    Director Nominee and Member of the Compensation
                                         Committee
    Stephen C. Mott............  49    Director Nominee
    Thor Geir Ramleth..........  40    Director Nominee and Member of the Audit Committee
    KEY EMPLOYEES:
    Robyn L. Raschke...........  34    Vice President of Finance
    Philip A. Burkhart.........  37    Vice President of Channel Sales
    Robert L. Ross.............  30    President, Integral Networking Corporation
    Tracy M. Corrington........  33    Director of Marketing
    David L. Greenman..........  31    Director of Systems Engineering
    Richard J. Quosig..........  45    National Sales Director
</TABLE>
    
 
JAMES G. COUCH founded our company in 1983 and has been President, Chief
Executive Officer and Chairman of the Board since incorporation in 1993. He
began developing applications for advanced networking systems with CRL and
worked closely with the National Science Foundation and Bellcore in the
transition of the Internet to a commercial medium.
 
   
ROBERT B. MURPHY, JR. has served as our Executive Vice President and Chief
Financial Officer since April 1999. Prior to joining us, Mr. Murphy was the
Executive Vice President/Chief Financial Officer of Savvis Communications
Corporation, a nationwide provider of access and Internet services, from 1997 to
April 1999. From 1992 to 1996, Mr. Murphy was the Senior Vice President/Chief
Financial Officer of Access America Telemanagement, a provider of
telecommunications services to small and medium-sized businesses. Mr. Murphy
also held positions as Vice President/Chief Financial Officer at United
Telemanagement, Inc. from 1989 to 1992 and at Belmac Corporation from 1988 to
1989. Prior to this, Mr. Murphy had seven years of investment banking
experience.
    
 
   
JOHN A. BLAIR has served as Vice President of Business Development since October
1998. Prior to joining us, Mr. Blair had been, since 1996, the President and a
director of Executive Strategies, his own management consulting company that
served the hi-tech and Internet service provider markets. From 1994 to 1996, Mr.
Blair was the Vice President of Operations with DG Systems, a company engaged in
digital distribution of advertising media. Mr. Blair also has more than 15 years
experience with financial institutions including Citibank N.A., Ameritrust and
Crocker Bank.
    
 
SAM TRAZNIK has served as our Vice President of Direct Sales since April 1999.
Mr. Traznik has worked previously with GTE Internetworking as its Regional Vice
President and General Manager, Pacific Northwest from 1997 to April 1999. From
1996 to 1997, Mr. Traznik was the President and General Manager of Advanced
Technology Marketing, a provider of Internet consulting services. From 1995 to
1996, Mr. Traznik was the Director of VAR Channels and Sales, Southern
California at Exodus
 
                                       56
<PAGE>   61
 
   
Communications, Inc., an Internet service provider From 1989 to 1995, Mr.
Traznik was the National Sales Manager at Qualstar Corporation, a provider of
data communications and data storage products.
    
 
JACK M. FIELDS, JR. has agreed to serve as a director of our company upon
completion of the offering. Since January 1997, Mr. Fields has been the Chief
Executive Officer of Twenty-First Century Group, a government affairs company,
and the Chief Executive Officer of Texana Global, a firm dealing with
entrepreneurial projects in the telecommunications industry. From 1981 to 1996,
Mr. Fields was a member of the United States Congress. During 1995 and 1996, Mr.
Fields served as Chairman of the House Telecommunications and Finance
Subcommittee, which authored the Telecommunications Act of 1996 and has
jurisdiction and oversight over the Federal Communications Commission and the
Securities and Exchange Commission. Mr. Fields is also a director of AIM
Management, Administaff, Inc. and Telscape International, Inc.
 
STEVEN T. STENBERG has served as a director of our company since March 1999.
Since 1992, Mr. Stenberg has been President and Chief Executive Officer of his
own accounting firm, which currently has seven employees, and is a certified
public accountant.
 
   
STEPHEN C. MOTT has agreed to serve as director of our company upon completion
of the offering. Since 1995, Mr. Mott has been the Chief Executive Officer of
CSI Management, Inc., an internet consulting and investment firm. From October
1995 until February 1998, Mr. Mott was the Senior Vice President -- Electronic
Commerce/New Ventures at Mastercard International Incorporated. From 1987 to
1995, Mr. Mott was the Chief Executive Officer, Chief Operating Officer and
Chief Financial Officer of Cognitive Systems, Inc., an artificial intelligence
and database mining technology company, and was the Chief Executive Officer of
Ingenia, Inc. when Ingenia purchased a portion of Cognitive Systems' business
from September 1994 to October 1995.
    
 
   
THOR GEIR RAMLETH has agreed to serve as director of our company upon completion
of the offering. Mr. Ramleth has been the Chief Executive Officer and a director
of ZeroDotNet, Inc. since April 1999. Mr. Ramleth was the President and Chief
Executive Officer of Genuity, Inc., an Internet service provider, from December
1995 to November 1998. Prior to that, Mr. Ramleth was the Manager of Commercial
Systems at Bechtel Group, Inc. from February 1995 to December 1995, where he was
responsible for consolidating all commercial systems activities. From February
1993 to February 1995, Mr. Ramleth was the Practice Director at Oracle
Corporation. Since January 1998, Mr. Ramleth has served as a director at
UWI.com.
    
 
ROBYN L. RASCHKE was appointed as our Vice President of Finance effective March
1, 1999. Prior to that, she served as Controller of our company since March
1997. She held the position of Assistant Controller at Greenbrier Capital
Corporation from 1992 to 1997. She has also worked at Touche Ross & Co. as a
senior auditor. Ms. Raschke has a masters degree in accounting from the
University of Georgia and is a certified public accountant.
 
PHILIP A. BURKHART has served as Vice President of Channel Sales since December
1998. Prior to that, he served as our Vice President of Operations since May
1995. He was instrumental in the build-out of our national backbone network and
developed the technical support/customer service and provisioning departments
within our company. Between 1991 and 1994, Mr. Burkhart worked for KBLCOM/Time
Warner where he managed its data, voice communications and video services and
Internet network throughout South Texas.
 
   
ROBERT L. ROSS founded Integral Networking Corporation in 1989 and continues to
serve as its President since our merger with Integral in December 1998. In 1996,
Mr. Ross developed Integral's remote management services. Mr. Ross was
instrumental in the completion of Integral's Network Operations Center, and, as
President of Integral, continues to provide support and vision to the remote
management service program. He has prior experience as a systems engineer at
Microage Corp. and is a Certified Novell Engineer.
    
 
TRACY M. CORRINGTON has served as Director of Marketing since September 1998 and
is responsible for marketing communications, marketing product development and
media relations. Ms. Corrington worked
                                       57
<PAGE>   62
 
previously with Teleport Communications Group, Inc. between 1994 and 1998,
holding management positions in marketing, public relations and communications.
Prior to that, she worked for seven years as a print investigative reporter with
several media/newspaper companies.
 
DAVID L. GREENMAN has served as Director of Systems Engineering since December
1998. Mr. Greenman has prior systems management and consulting experience at
Walnut Creek CDROM, Incorporated, where he has been the Systems Manager from
1995 to the present. He also was cofounder and principal architect in 1993 of
The FreeBSD Project, an operating support system that is currently used by a
variety of Fortune 500 businesses, and remains active in that project. Mr.
Greenman has also held positions with Artisans Northwest Productions, Telecom
Broadcasting, Inc., Clear View Satellite Systems and Reynolds Media Services.
 
RICHARD J. QUOSIG has served as National Sales Director since September 1998 and
has 12 years of telecommunications sales experience. Prior to joining us, Mr.
Quosig worked as General Manager of the flagship Silicon Valley office of
Frontier Global Center from 1997 to September 1998. From March 1996 to February
1997, Mr. Quosig worked as a Strategic Account Manager with Teleport
Communications Group, Inc. From January 1995 to January 1996, Mr. Quosig was a
Regional Sales Manager with Winstar Wireless, where he managed the eastern
portion of the United States. Prior to that, Mr. Quosig was a sales manager with
Nynex Mobile Communications from January 1994 to January 1995. Mr. Quosig was
also the national account manager at McCaw Communications (AT&T Wireless) from
January 1992 to January 1994.
 
BOARD COMMITTEES
 
The Audit Committee has the responsibility of reviewing our audited financial
statements and accounting practices, and to consider and recommend the
employment of, and approve the fee arrangements with, independent accountants
for both audit functions and for advisory and other consulting services. Upon
completion of the offering, the Audit Committee will be comprised of Messrs.
Ramleth and Stenberg. The Compensation Committee reviews and approves the
compensation and benefits for our key executive officers, administers our
employee benefit plans and makes recommendations to the Board of Directors
regarding such matters. Upon completion of the offering, the Compensation
Committee will be comprised of Messrs. Fields and Stenberg.
 
DIRECTORS COMPENSATION
 
Each non-employee director receives an initial option grant for 30,000 shares
upon becoming a director of CRL and a minimum annual option grant under our 1999
Stock Incentive Plan to purchase 5,000 shares. This amount may be increased for
any particular non-employee directors or all non-employee directors at the
discretion of the Board of Directors, but the maximum number of shares
underlying any annual option granted to any non-employee director may not exceed
50,000 shares. The initial option grants and annual option grants generally vest
over a period of three years. See "Management -- Stock Options." We also pay the
expenses of our non-employee directors in attending Board meetings. No
additional compensation is paid to any of our employee directors for serving on
our Board of Directors.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
Prior to this offering, our Board of Directors did not have a compensation
committee and all compensation decisions were made by the full Board of
Directors. In the year ended December 31, 1998, the full Board of Directors,
which solely consisted of James G. Couch, determined the compensation of all
executive officers, including Mr. Couch in his capacity as President and Chief
Executive Officer. Upon completion of this offering, the Compensation Committee
will make all compensation decisions. No interlocking relationship exists
between the Board of Directors or Compensation Committee and the board of
directors or compensation committee of any other company, nor has any such
interlocking relationship existed in the past.
 
                                       58
<PAGE>   63
 
EXECUTIVE COMPENSATION
 
The table below summarizes the annual and long term compensation paid by us
during the fiscal year ended December 31, 1998 to those persons who were, as of
December 31, 1998, (i) our President and Chief Executive Officer and (ii) our
other compensated executive officer whose total annual salary and bonus exceeded
$100,000 during the year ended December 31, 1998.
 
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                       LONG-TERM
                                                                                      COMPENSATION
                                                                                         AWARDS
                                                      ANNUAL COMPENSATION             ------------
                                              ------------------------------------     SECURITIES
                                                                        OTHER          UNDERLYING
         NAME AND PRINCIPAL POSITION           SALARY     BONUS    COMPENSATION(1)     OPTIONS(#)
         ---------------------------          --------    -----    ---------------    ------------
    <S>                                       <C>         <C>      <C>                <C>
    James G. Couch........................    $329,527    $ --             --                --
      President, Chief
      Executive Officer and Director
    Philip Burkhart.......................    $115,972    $ --         $8,730                --
      Vice President of Channel Sales
</TABLE>
 
- -------------------------
(1)  The figures shown in the last column designated "Other Compensation"
     represent our forgiveness of a portion of a loan made by CRL to Mr.
     Burkhart. Until December 1998, Mr. Burkhart served as the Vice President of
     Operations and was an executive officer of CRL.
 
No options were granted to the named executives in the last fiscal year.
 
AGGREGATED OPTION EXERCISES DURING LAST FISCAL YEAR AND FISCAL YEAR END OPTION
VALUES
 
The table below sets forth information regarding options exercised during the
year ended December 31, 1998 by the executive officers identified in the Summary
Compensation Table above, as well as the aggregate value of unexercised options
held by those executive officers at December 31, 1998. We have no outstanding
stock appreciation rights.
 
<TABLE>
<CAPTION>
                                                                                          VALUE OF UNEXERCISED
                                                            NUMBER OF UNEXERCISED         IN-THE-MONEY OPTIONS
                                  SHARES                 OPTIONS AT FISCAL YEAR END     AT FISCAL YEAR END($)(1)
                                ACQUIRED ON    VALUE     ---------------------------   ---------------------------
               NAME             EXERCISE(#)   REALIZED   EXERCISABLE   UNEXERCISABLE   EXERCISABLE   UNEXERCISABLE
               ----             -----------   --------   -----------   -------------   -----------   -------------
    <S>                         <C>           <C>        <C>           <C>             <C>           <C>
    James G. Couch............         --       --         38,421         153,685       $125,637       $502,550
    Philip Burkhart...........         --       --         38,421         153,685        125,637        502,550
</TABLE>
 
- -------------------------
(1)  There was no public trading market for the common stock as of December 31,
     1998. Accordingly, these values have been calculated on the basis of fair
     market value of common stock of $5.10 per share. Therefore, the value of
     options in the table is calculated based on the $5.10 per share value, less
     the applicable exercise price per share, multiplied by the number of shares
     underlying these options.
 
401(k) PLAN
 
We have an employee profit sharing plan that is intended to qualify as a
deferred salary arrangement under Section 401(k) of the Internal Revenue Code.
Under our 401(k) Plan, our officers and other employees may elect to defer up to
15% of their compensation, subject to limitations under the Internal Revenue
Code. We may from time to time also make contributions on behalf of each officer
or other employee, which contributions vest depending on the length of
employment of each respective officer or employee. Amounts deferred are
deposited by us in a trust account for distribution to employees upon
retirement, attaining age 65, permanent disability, death, termination of
employment or the occurrence of conditions constituting extraordinary hardship.
We have not made matching contributions on behalf of our officers and other
employees in the past.
 
                                       59
<PAGE>   64
 
STOCK OPTIONS
 
  1997 Equity Incentive Plan
 
On August 8, 1997, our Board of Directors adopted, and our stockholders
approved, the CRL Network Services, Inc. 1997 Equity Incentive Plan. The 1997
Equity Incentive Plan provides for the grant of incentive and non-statutory
options, restricted stock or stock bonuses to purchase up to an aggregate of the
number of shares of common stock equal to 10% of the total number of shares of
our authorized common stock. Incentive stock options can be granted only to our
full-time employees, including officers and directors who are also employees,
while non-statutory stock options, restricted stock and stock bonuses can be
granted to our employees, officers and directors, consultants and advisors.
Participants in the 1997 Equity Incentive Plan are selected by our Board of
Directors, or by a committee of directors selected by the Board of Directors.
The Board of Directors or the committee is empowered to determine the terms and
conditions of each award granted under the 1997 Equity Incentive Plan, subject
to limitations including that no option can have a term in excess of ten years,
or five years if granted to an employee owning more than 10% of our outstanding
common stock. In the event of:
 
  - a merger or consolidation in which we are not the surviving corporation
    (other than a merger or consolidation with a wholly-owned subsidiary or a
    reincorporation in a different jurisdiction)
 
  - our dissolution or liquidation
 
  - a sale of all or substantially all of our assets
 
  - any other transaction that qualifies as a "corporate action" under Section
    424(a) of the Internal Revenue Code
 
the number of vested shares under all options granted pursuant to the 1997
Equity Incentive Plan will increase as if the holder had remained our employee
for an additional one year from the date of such event. The Board of Directors
may amend or modify the 1997 Equity Incentive Plan at any time subject to any
required shareholder approval. The 1997 Equity Incentive Plan will terminate on
the earliest of:
 
  - August 7, 2007
 
  - the date in which all shares available for issuance under the 1997 Equity
    Incentive Plan have been issued as fully-vested shares
 
  - the termination of all outstanding options in connection with a change of
    control in which the successor corporation does not assume the 1997 Equity
    Incentive Plan
 
As of March 31, 1999, options to purchase 1,006,320 shares, at a weighted
average exercise price of $2.18, were outstanding under the 1997 Equity
Incentive Plan. There have been no restricted stock awards or stock bonuses
awarded. We do not intend to make any further option grants under this plan.
 
  1999 Stock Incentive Plan
 
   
On March 18, 1999, our Board of Directors adopted, and our stockholders
approved, the CRL Network Services, Inc. 1999 Stock Incentive Plan. The 1999
Stock Incentive Plan does not limit any award to any specified form or
structure. The types and amount of awards will be determined at the discretion
of the Board of Directors or committee of the Board of Directors empowered to
administer the 1999 Stock Incentive Plan. As amended on May 18, 1999, the
maximum number of shares of common stock that may be issued under the 1999 Stock
Incentive Plan is 2,000,000 shares. If incentive stock options are issued, these
options must comply with Section 422 of the Internal Revenue Code. Participants
in the 1999 Stock Incentive Plan are selected by a committee of directors
selected by the Board of Directors as a whole, each member of which must be a
"non-employee director" as this term is defined under the Securities Exchange
Act of 1934, as amended. This committee is also empowered to determine the terms
and conditions of each option or other stock-based award granted under the 1999
Stock Incentive Plan, subject to the limitations regarding incentive stock
options imposed by the Internal Revenue Code. The Board of
    
 
                                       60
<PAGE>   65
 
Directors may amend or modify the 1999 Stock Incentive Plan at any time subject
to any required shareholder approval. The 1999 Stock Incentive Plan will
terminate on March 17, 2009. There are currently no options or other awards
outstanding under the 1999 Stock Incentive Plan.
 
EMPLOYMENT AGREEMENTS
 
   
We entered into an employment agreement with James G. Couch, our President and
Chief Executive Officer, on March 15, 1999. Under the terms of this employment
agreement, Mr. Couch will receive an annual base salary of $320,000, which may
be increased at the discretion of the Board of Directors, and at the discretion
of the Board of Directors, a bonus. The term of this employment agreement ends
on February 28, 2002, and is automatically renewable for consecutive one-year
periods unless advance notice is given by either party. We may terminate Mr.
Couch or Mr. Couch may voluntarily resign at any time. If Mr. Couch is
terminated by us without cause, he will be entitled to receive twelve months'
salary, payable in equal monthly installments over the twelve month period
following termination. We are not obligated to pay any specified amount if we
terminate Mr. Couch for cause.
    
 
In connection with our merger with Integral Networking Corporation, we entered
into an employment agreement and a non-competition agreement with Robert L.
Ross, Integral's President, to continue to serve as President of Integral
Networking Corporation, our wholly-owned subsidiary. The employment agreement's
term expires December 21, 2000. Mr. Ross receives a salary of at least $56,500
and a bonus of up to $100,000 based upon targeted personal and company
performance. We may terminate Mr. Ross at any time upon written notice. Mr. Ross
may terminate his employment with us if we fail to cure any breach within 30
days following written notice from him to us describing the breach. In the event
that we terminate Mr. Ross's employment without cause before the end of its
term, we are obligated to pay Mr. Ross his then current salary until the end of
the term or for three months, whichever is less.
 
   
For more information regarding our arrangements with our key employees, See
"Risk Factors -- Our success will depend on the continued performance of our key
personnel."
    
 
LIMITATION OF LIABILITY AND INDEMNIFICATION
 
Our Certificate of Incorporation and Bylaws require us to indemnify our
officers, directors, employees and other agents to the full extent permitted by
law, including those circumstances in which indemnification would otherwise be
discretionary. Delaware law provides that a corporation's certificate of
incorporation may contain a provision eliminating or limiting the personal
liability of a director for monetary damages for breach of their fiduciary
duties as directors, except for liability for any breach of their duty of
loyalty to the corporation or its stockholders, acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of law,
unlawful payments of dividends or unlawful stock repurchases or redemptions as
provided in Section 174 of the Delaware General Corporation Law or any
transaction from which the director derived an improper personal benefit. Our
Bylaws also permit us to advance expenses incurred by an indemnified director or
officer in connection with the defense of any action or proceeding arising out
of such director's or officer's status or service as one of our directors or
officers upon any undertaking by such director or officer to repay such advances
if it is ultimately determined that such director or officer is not entitled to
such indemnification. In addition, our Certificate of Incorporation expressly
authorizes the use of indemnification agreements. We currently have no
indemnification agreements with our officers, directors or employees.
 
CERTAIN TRANSACTIONS
 
   
We were party to an airplane leasing agreement with FBN Holding Corp., the sole
stockholder of which is James G. Couch, our President and Chief Executive
Officer. Under the terms of this agreement, we were able to lease aircraft from
FBN on an hourly basis at FBN's then prevailing rate, which included, without
additional charge, all fuel, insurance, repairs and maintenance. Changes in the
FBN prevailing hourly rate required 30 days written prior notice to us. This
agreement was terminated effective April 30, 1999. During 1998, we paid FBN an
aggregate of approximately $144,000 for our use, at various times during the
year,
    
 
                                       61
<PAGE>   66
 
   
of an airplane owned by FBN. We believe the rates charged by FBN were equivalent
to the rates we could obtain from unaffiliated third parties.
    
 
In August 1995, we made a loan in the amount of $106,000 with an interest rate
of 7.5% to Mr. Couch. The promissory note delivered to us specified that the
entire principal amount plus accrued interest was to be repaid by July 10, 2000.
During 1998, the stockholder repaid the entire remaining amount outstanding
under the promissory note.
 
   
We have employment agreements for specified terms with Messrs. Couch and Ross.
See "Management -- Employment Agreements."
    
 
All future transactions among us, our directors, principal stockholders and
their affiliates will be approved by a majority of the Board of Directors,
including a majority of the independent and disinterested directors.
 
                                       62
<PAGE>   67
 
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
   
The following table sets forth certain information regarding the beneficial
ownership of our common stock as of May 14, 1999, and as adjusted to reflect the
sale of 5,000,000 shares by us and the sale of 850,000 shares by the selling
stockholder, by (i) each of our directors and director nominees, (ii) each
person or group known to us to be the beneficial owner of more than 5% of our
outstanding common stock, (iii) our named executive officers whose total salary
and bonus exceeded $100,000 during the year ended December 31, 1998, (iv) the
selling stockholder, and (v) all of our directors and executive officers as a
group. Each of these persons has the sole voting and investment power with
respect to the shares owned. Except as otherwise indicated, the address of each
holder identified below is care of CRL Network Services, Inc., One Kearny
Street, Suite 1450, San Francisco, California 94108.
    
 
   
<TABLE>
<CAPTION>
                                               SHARES              NUMBER             SHARES
                                         BENEFICIALLY OWNED          OF         BENEFICIALLY OWNED
                                        PRIOR TO OFFERING(1)       SHARES      AFTER THE OFFERING(1)
                                        ---------------------      BEING       ---------------------
                   NAME                   NUMBER      PERCENT     OFFERED        NUMBER      PERCENT
                   ----                 ----------    -------    ----------    ----------    -------
    <S>                                 <C>           <C>        <C>           <C>           <C>
    James G. Couch....................  16,953,757(2)  88.9%      850,000      16,103,757     66.9%
    Philip Burkhart(3)................      60,000(4)   0.3%           --          60,000      0.2%
    Steven T. Stenberg................          --       --            --              --       --
    Jack M. Fields, Jr. ..............          --       --            --              --       --
    Stephen C. Mott...................          --       --            --              --       --
    Thor Geir Ramleth.................          --       --            --              --       --
    All directors and executive
      officers as a group (5
      persons)........................  16,953,757(2)  88.9%      850,000      16,103,757     66.9%
</TABLE>
    
 
- -------------------------
   
(1)  In calculating beneficial and percentage ownership, all shares of common
     stock that a named stockholder or specified group will have the right to
     acquire within 60 days of the date of this prospectus upon exercise of
     stock options are deemed to be outstanding for the purpose of computing the
     ownership of such stockholder, but are not deemed to be outstanding for the
     purpose of computing the percentage of common stock owned by any other
     stockholder. As of May 14, 1999, an aggregate of 19,038,832 shares of
     common stock were outstanding.
    
 
(2)  Includes 38,421 shares issuable upon exercise of stock options held by Mr.
     Couch but does not include 153,685 shares issuable upon exercise of stock
     options that have been granted but are not exercisable within 60 days of
     the date of this prospectus.
 
(3)  Until December 1998, Mr. Burkhart was an executive officer of CRL, serving
     as Vice President of Operations.
 
(4)  Does not include 132,106 shares issuable upon exercise of stock options
     which have been granted but are not exercisable within 60 days of the date
     of this prospectus.
 
                                       63
<PAGE>   68
 
                          DESCRIPTION OF CAPITAL STOCK
 
Our authorized capital stock consists of 70,000,000 shares of common stock,
$.0001 par value, and 5,000,000 shares of preferred stock, $.01 par value. The
description of our capital stock below and provisions of our charter documents
is not complete and is qualified by our Certificate of Incorporation and Bylaws,
which are included as exhibits to the Registration Statement that this
prospectus is a part of.
 
COMMON STOCK
 
   
As of May 14, 1999, there were 19,038,832 shares of common stock outstanding
that were held of record by five stockholders. Upon completion of this offering,
there will be 24,038,832 shares of our common stock outstanding assuming no
exercise of the underwriters' over-allotment option and no exercise of
outstanding options. Holders of the common stock are entitled to one vote per
share on each matter submitted to a vote of our stockholders. Cumulative voting
for the election of directors is not authorized by our Certificate of
Incorporation, which means that the holders of a majority of the shares voted
can elect all of the directors then standing for election. Subject to
preferences that may be applicable to the holders of any outstanding series of
our preferred stock, each holder of common stock is entitled to receive
dividends, if any, as may be declared by our Board of Directors out of funds
legally available for the payment of dividends. We have not granted dividends in
the past and have no current plans to do so in the future. See "Dividend
Policy." Upon our liquidation, dissolution or winding up, our common
stockholders are entitled to share ratably in all of our assets which are
legally available for distribution, after payment of all debts and other
liabilities and the liquidation preference of any outstanding series of
preferred stock. Holders of common stock have no preemptive, subscription,
redemption or conversion rights. The outstanding shares of common stock are, and
the shares to be sold by us in the offering will be, when issued and delivered,
validly issued, fully-paid and non-assessable under the Delaware General
Corporation Law.
    
 
PREFERRED STOCK
 
   
As of May 14, 1999, no shares of preferred stock were outstanding. Our Board of
Directors is authorized, subject to any limitations of the Delaware General
Corporation Law, but without further vote or action by our stockholders, to
issue preferred stock in one or more series. The Board of Directors can
establish the number of shares of each series, to fix the designations, powers,
preferences and rights of the shares of each such series, including dividend
rights, dividend rates, conversion rights, voting rights, terms of redemption,
redemption prices and liquidation preferences. The Board of Directors can also
establish any qualifications, limitations or restrictions of the preferred
stock, and to increase or decrease the number of shares of any such series, but
not below the number of shares of such series then outstanding. The Board of
Directors may authorize the issuance of preferred stock with voting or
conversion rights that could adversely affect the voting power or other rights
of the holders of common stock. While providing flexibility in connection with
possible acquisitions and other corporate purposes, the issuance of preferred
stock may have the effect of delaying, deferring or preventing a change in
control of our company. We have no current plans to issue any shares of
preferred stock.
    
 
CERTAIN PROVISIONS IN OUR CERTIFICATE OF INCORPORATION AND BYLAWS
 
  Stockholder Meetings
 
Our Bylaws provide that any action required to be taken or that may be taken at
any meeting of our stockholders may only be taken at a meeting of stockholders
and may not be taken by the written consent of the stockholders. Special
meetings of stockholders may only be called by the Board of Directors, the
Chairman of the Board or the President and only such business brought forth by
or at the direction of the Board of Directors or the stockholders may be
conducted. If a stockholder wishes to propose an item for consideration at any
meeting, the stockholder must give written notice to us not less than 90 days
before the meeting or, if later, the tenth day following the date of the first
public announcement of the meeting,
 
                                       64
<PAGE>   69
 
or such other date as is necessary to comply with applicable federal proxy
solicitation rules and other regulations.
 
  Board of Directors
 
Our Bylaws provide that the number of directors may not be less than two nor
more than seven until changed by an amendment duly adopted by the Board of
Directors or stockholders. The Bylaws further provide that the exact number of
directors shall be fixed from time to time, within such range, by the Board of
Directors. Currently, the number of directors is fixed at two. The Bylaws
provide that the Board of Directors will be divided into three classes of
directors, who will serve for staggered three-year terms. The Bylaws do not
provide for cumulation of stockholder votes in the election of directors.
According to the Bylaws, each director may be removed only for cause and only by
the affirmative vote of at least 80% of the outstanding shares of common stock.
The Bylaws provide that nominations for election of directors may be made by the
Board of Directors or any stockholder entitled to vote in the election of
directors. If a stockholder wishes to nominate a director, the stockholder must
give written notice to us not less than 90 days before the meeting or, if later,
the tenth day following the date of the first public announcement of the
meeting.
 
  Amendment of Our Charter Documents
 
Our Certificate of Incorporation may not be amended without the approval the
holders of a majority of our outstanding voting shares or the approval of at
least a majority of our directors. Our Bylaws contain provisions requiring the
affirmative vote of at least 80% of outstanding shares of common stock to amend,
alter or repeal the provisions of the Bylaws relating to the calling of special
meetings of stockholders, advance notice of stockholder business or nominees,
removal of directors or stockholder action without a meeting.
 
These provisions of our charter documents may delay, defer or prevent a change
in control without further action by our stockholders, may discourage bids for
the common stock at a premium over the market price of the common stock and may
adversely affect the market price of the common stock.
 
  Effect of Delaware Anti-takeover Statute
 
We are subject to Section 203 of the Delaware General Corporation Law which,
subject to exceptions, prohibits a Delaware corporation from engaging in any
"business combination" which includes a merger or sale of more than 10% of the
corporation's assets, with any interested stockholder for a period of three
years following the date that such stockholder became an interested stockholder,
unless:
 
  - before such date, the board of directors of the corporation approved either
    the business combination or the transaction which resulted in the
    stockholder becoming an interested stockholder;
 
  - upon completion of the transaction which resulted in the stockholder
    becoming an interested stockholder, the interested stockholder owned at
    least 85% of the voting stock of the corporation outstanding at the time the
    transaction commenced, excluding those shares owned by persons who are
    directors and also officers; or
 
  - on or after such date, the business combination is approved by the board of
    directors and authorized at an annual or special meeting of stockholders,
    and not by written consent, by the affirmative vote of at least two-thirds
    of the outstanding voting stock which is not owned by the interested
    stockholder.
 
In general, Section 203 defines an "interested stockholder" as any entity or
person beneficially owning 15% or more of the outstanding voting stock of the
corporation or any entity or person affiliated with or controlling or controlled
by such entity or person. See "Risk Factors -- Anti-takeover provisions could
negatively impact our stockholders."
 
                                       65
<PAGE>   70
 
TRANSFER AGENT AND REGISTRAR
 
The transfer agent and registrar for our common stock is ChaseMellon Shareholder
Services, L.L.C. Its address is 400 S. Hope Street, 4th Floor, Los Angeles, CA
90071 and its telephone number is (213) 553-9700.
 
LISTING
 
Application has been made to have our common stock approved for quotation on the
Nasdaq National Market under symbol "CRLX."
 
                                       66
<PAGE>   71
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
Prior to this offering, there has been no market for our common stock. Future
sales of substantial amounts of our common stock in the public market could
adversely affect prevailing market prices.
 
   
Upon completion of this offering, there will be 24,038,832 shares of our common
stock outstanding assuming no exercise of the underwriters' over-allotment
option and no exercise of outstanding options. Of these shares, the 5,850,000
shares sold in this offering will be freely tradable without restriction or
further registration under the Securities Act, except for any such shares held
by our "affiliates" (as defined below). The remaining 18,188,832 shares held by
existing stockholders are "restricted securities" as that term is defined in
Rule 144 under the Securities Act. Restricted securities and any shares
purchased in the offering by one of our "affiliates" may not be sold in the
public market without registration under the Securities Act or in compliance
with an applicable exemption from registration as provided in Rule 144 or 701
under the Securities Act, which rules are summarized below.
    
 
In general, under Rule 144 as currently in effect, a person or persons whose
shares are aggregated who has beneficially owned shares of our common stock for
at least one year including the holding period of any prior owner other than any
of our "affiliates," or who is one of our "affiliates," is entitled to sell
within any three-month period a number of shares or, in the case of an
"affiliate," a number of such restricted securities and shares purchased in the
public market, that does not exceed the greater of:
 
  - 1% of the shares of our common stock then outstanding, equaling
    approximately 240,000 shares immediately after this offering, or
 
  - the average weekly trading volume of our common stock in the public market
    during the four calendar weeks immediately before such sale.
 
Sales under Rule 144 are also subject to certain requirements as to the manner
of sale, notice and availability of current public information about us.
 
Under Rule 144(k), a person who has not been one of our "affiliates" at any time
during the 90 days before a sale, and who has beneficially owned shares proposed
to be sold for at least two years, is entitled to sell such shares without
regard to the volume limitations, manner of sale provisions or notice
requirements.
 
Subject to a number of limitations on the aggregate offering price of a
transaction and other conditions, Rule 701 of the Securities Act, as currently
in effect, permits the resale of securities originally purchased from us by our
employees, directors, officers, consultants or advisers prior to the closing of
this offering in connection with a compensatory stock or option plan or written
agreement, by persons who are not our "affiliates" subject only to the
manner-of-sale provisions of Rule 144 and by our affiliates under Rule 144
without compliance with its minimum holding period requirement.
 
All of our officers, directors and stockholders have generally agreed that they
will not, without the prior written consent of CIBC World Markets Corp., which
consent may be withheld in its sole discretion, and subject to limited
exceptions, directly or indirectly, sell, offer, contract or grant any option to
sell, make any short sale, pledge, transfer, establish an open "put equivalent
position" within the meaning of Rule 16a-1(h) under the Exchange Act, or
otherwise dispose of any shares of common stock, options or warrants to acquire
common stock, or securities exchangeable or exercisable for or convertible into
common stock currently owned either of record or beneficially by them or
announce the intention to do any of the acts listed above, for a period
beginning on the date of this prospectus and continuing to the date which is 180
days after the date of this prospectus. CIBC World Markets Corp. may, in its
sole discretion and any time without notice, release all or any portion of the
securities subject to these lock-up agreements. In addition, we have agreed
that, for a period of 180 days after the date of this prospectus, we will not,
without the consent of CIBC World Markets Corp., issue, offer, sell or grant
options to purchase or otherwise dispose of any equity securities or securities
convertible into or exchangeable for equity securities except for (i) the
issuance of shares of common stock offered hereby and (ii) the grant of options
to purchase shares of common stock under the 1999 Stock Incentive Plan and
shares of common
 
                                       67
<PAGE>   72
 
stock issued upon the exercise of outstanding options on or after the date of
this prospectus. See "Underwriting."
 
There are no restrictions on resale with respect to any of our securities, other
than restrictions imposed by lock-up agreements and applicable securities laws.
As a result of the lock-up agreements described above and the provisions of Rule
144 and 701, the restricted shares will be available for sale in the public
market immediately upon expiration of the 180 day lock-up period, subject to the
volume limitations and other conditions of Rule 144. Sales of our common stock
by these stockholders could have a material adverse effect on the trading price
of our common stock.
 
   
We have granted options to purchase up to 1,006,320 shares of common stock under
the 1997 Equity Incentive Plan of which, options to purchase 60,000 shares have
been exercised as of May 14, 1999. Concurrently with the sale of the shares
offered hereby, we intend to grant options to purchase an additional 350,000
shares of common stock pursuant to the 1999 Equity Incentive Plan. An additional
1,650,000 shares currently are reserved for issuance under the 1999 Stock
Incentive Plan. No options are outstanding under the 1999 Stock Incentive Plan.
Immediately after this offering, we intend to register the sale of the shares of
common stock issuable under the 1997 Equity Incentive Plan and 1999 Stock
Incentive Plan under the Securities Act. See "Management -- Stock Options."
Accordingly, as awards under the stock option plans vest, shares issued upon
exercise of these stock options will be freely tradable and available for sale
in the open market, immediately after the 180-day lock-up agreements expire,
except such shares as may be acquired by one of our "affiliates."
    
 
   
On April 27, 1999, our principal stockholder, James Couch, sold 542,888 shares
of CRL common stock to ZeroDotNet, Inc. at a price equal to $9.21 per share in a
private transaction. Mr. Thor Geir Ramleth, who has agreed to serve as a
director of CRL upon completion of this offering, is the Chief Executive Officer
and a director of ZeroDotNet, Inc. In connection with this sale, CRL granted
registration rights to the buyer, including the right to demand one registration
for at least 50% of the purchased shares at any time during the period beginning
120 days after CRL's initial public offering through the second anniversary of
CRL's initial public offering. The registration rights terminate if all the
purchased shares could be sold in one transaction under Rule 144 without
exceeding the volume limitations of that rule. In addition, if we propose to
register any of our shares of common stock under the Securities Act, the buyer
is entitled to notice of and may include the purchased shares in the
registration. If the registration involves an underwriting, the underwriters may
eliminate shares in the registration and underwriting, and the shares included
in the registration must be allocated first to CRL, then to the buyer. CRL
agreed to provide the registration rights described above in exchange for the
buyer agreeing to enter into the lock-up agreement for a period of 180 days
after the date of this prospectus. The buyer must obtain a waiver of the lock-up
agreement to exercise the registration rights described above during the 180 day
period of the lock-up.
    
 
                                       68
<PAGE>   73
 
                                  UNDERWRITING
 
CRL Network Services, Inc. and the selling stockholder have entered into an
underwriting agreement with the underwriters named below. CIBC World Markets
Corp. and Lehman Brothers Inc. are acting as representatives of the
underwriters.
 
The underwriting agreement provides for the purchase of a specific number of
shares of common stock by each of the underwriters. The underwriters'
obligations are several, which means that each underwriter is required to
purchase a specified number of shares, but is not responsible for the commitment
of any other underwriter to purchase shares. Subject to the terms and conditions
of the underwriting agreement, each underwriter has severally agreed to purchase
the number of shares of common stock set forth opposite its name below:
 
   
<TABLE>
<CAPTION>
                        UNDERWRITER                           NUMBER OF SHARES
                        -----------                           ----------------
<S>                                                           <C>
CIBC World Markets Corp. ...................................
Lehman Brothers Inc.........................................
DLJdirect Inc...............................................
 
                                                                 ---------
Total.......................................................     5,850,000
                                                                 =========
</TABLE>
    
 
This is a firm commitment underwriting. This means that the underwriters have
agreed to purchase all of the shares offered by this prospectus (other than
those covered by the over-allotment option described below) if any are
purchased.
 
   
The representatives have advised CRL and the selling stockholder that the
underwriters propose to offer the shares directly to the public at the public
offering price that appears on the cover page of this prospectus. In addition,
the representatives may offer some of the shares to selected securities dealers
at such price less a concession of $     per share. The underwriter may also
allow, and such dealers may reallow, a concession not in excess of $     per
share to other dealers. After the shares are released for sale to the public,
the representatives may change the offering price and other selling terms at
various times. An electronic prospectus is available on the website maintained
by DLJdirect Inc.
    
 
   
CRL and the selling stockholder have granted the underwriters an over-allotment
option. This option, which is exercisable for up to 30 days after the date of
this prospectus, permits the underwriters to purchase a maximum of 877,500
additional shares from the selling stockholder or, at the selling stockholder's
option, CRL, to cover over-allotments. If the underwriters exercise all or part
of this option, they will purchase shares covered by the option at the initial
public offering price that appears on the cover page of this prospectus, less
the underwriting discount. If this option is exercised in full from the selling
stockholder, the total price to public will be $       , the total proceeds to
CRL will be $       and the total proceeds to the selling stockholder will be
$       . If this option is exercised in full from CRL, the total proceeds to
CRL will be $       and the total proceeds to the selling stockholder will be
$       . The underwriters have severally agreed that, to the extent the
over-allotment option is exercised, they will each purchase a number of
additional shares proportionate to the underwriter's initial amount reflected in
the foregoing table.
    
 
                                       69
<PAGE>   74
 
The following table provides information regarding the amount of the discount to
be paid to the underwriters by CRL and the selling stockholder.
 
   
<TABLE>
<CAPTION>
                                                                                TOTAL WITH FULL   TOTAL WITH FULL
                                                                                  EXERCISE OF       EXERCISE OF
                                                    TOTAL WITHOUT EXERCISE OF   OVER-ALLOTMENT    OVER-ALLOTMENT
                                        PER SHARE     OVER-ALLOTMENT OPTION        OPTION(1)         OPTION(2)
                                        ---------   -------------------------   ---------------   ---------------
    <S>                                 <C>         <C>                         <C>               <C>
    CRL Network Services, Inc.........
    Selling Stockholder...............
              Total...................
</TABLE>
    
 
- -------------------------
(1) Assumes the over-allotment shares are sold by the selling stockholder.
 
(2) Assumes the over-allotment shares are sold by CRL.
 
CRL estimates that the total expenses of the offering to be paid by CRL,
excluding the underwriting discount, will be approximately $1,090,000.
 
CRL and the selling stockholder have agreed to indemnify the underwriters
against some specified liabilities, including liabilities under the Securities
Act of 1933.
 
   
CRL, its officers and directors and other stockholders have generally agreed to
a 180-day "lock up" with respect to 18,128,832 shares of common stock and other
CRL securities that they beneficially own, including securities that are
convertible into shares of common stock and securities that are exchangeable or
exercisable for shares of common stock. This means that, for a period of 180
days following the date of this prospectus, CRL and such persons may not offer,
sell, pledge or otherwise dispose of these CRL securities without the prior
written consent of CIBC World Markets Corp.
    
 
The representatives have informed CRL that they do not expect discretionary
sales by the underwriters to exceed five percent of the shares offered by this
prospectus.
 
There is no established trading market for the shares. The offering price for
the shares has been determined by CRL and the representatives, based on the
following factors:
 
  - negotiations among CRL and the representatives
 
  - prevailing market and economic conditions
 
  - the financial information of CRL
 
  - the history of, and the prospects for CRL
 
  - CRL and the industry in which it competes
 
  - an assessment of CRL management, its past and present operations, the
    prospects for, and timing of, future revenues of CRL
 
  - the present stage of CRL's development and the above factors in relation to
    market values and valuation measures of other companies engaged in
    activities similar to those of CRL's
 
The initial public offering price set forth on the cover page of this prospectus
should not, however, be considered an indication of the actual value of the
common stock. Such price is subject to change as a result of market conditions
and other factors. There can be no assurance that an active trading market will
develop for the common stock or that the common stock will trade in the public
market subsequent to this offering at or above the initial offering price.
 
                                       70
<PAGE>   75
 
Rules of the Securities and Exchange Commission may limit the ability of the
underwriters to bid for or purchase shares before the distribution of the shares
is completed. However, the underwriters may engage in the following activities
in accordance with the rules of the Securities and Exchange Commission:
 
  - Stabilizing transactions -- The representatives may make bids or purchases
    for the purpose of pegging, fixing or maintaining the price of the shares,
    so long as stabilizing bids do not exceed a specified maximum.
 
  - Over-allotments and syndicate covering transactions -- The underwriters may
    create a short position in the shares by selling more shares than are set
    forth on the cover page of this prospectus. If a short position is created
    in connection with the offering, the representatives may engage in syndicate
    covering transactions by purchasing shares in the open market. The
    representatives may also elect to reduce any short position by exercising
    all or part of the over-allotment option.
 
  - Penalty bids -- If the representatives purchase shares in the open market in
    a stabilizing transaction or syndicate covering transaction, they may
    reclaim a selling concession from the underwriters and selling group members
    who sold those shares as part of this offering.
 
Stabilization and syndicate covering transactions may cause the price of the
shares to be higher than it would be in the absence of such transactions. The
imposition of a penalty bid might also have an effect on the price of the shares
if it discourages resales of the shares.
 
Neither CRL nor the underwriters makes any representation or prediction as to
the effect that the transactions described above may have on the price of the
shares. These transactions may occur on the Nasdaq National Market or otherwise.
If such transactions are commenced, they may be discontinued without notice at
any time.
 
Neither CRL nor the underwriters makes any representation or prediction as to
the effect that the transactions described above may have on the price of the
shares. These transactions may occur on the Nasdaq National Market or otherwise.
If such transactions are commenced, they may be discontinued without notice at
any time.
 
                                 LEGAL MATTERS
 
Certain legal matters with respect to the legality of the issuance of the shares
of common stock offered hereby will be passed upon for us and the selling
stockholder by Gibson, Dunn & Crutcher LLP, San Francisco, California. Certain
legal matters in connection with this offering will be passed upon for the
underwriters by Brobeck, Phleger & Harrison LLP, San Francisco, California.
 
                                    EXPERTS
 
The financial statements included in this prospectus have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their report appearing
herein in the registration statement, and have been so included in reliance upon
the report of such firm given upon their authority as experts in accounting and
auditing.
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
We filed with the Securities and Exchange Commission a Registration Statement on
Form S-1 under the Securities Act with respect to the shares of common stock
offered hereby. This prospectus does not contain all of the information
contained in the Registration Statement and the exhibits and schedule filed with
the Registration Statement. For further information with respect to CRL Network
Services, Inc. and the common stock offered hereby, reference is made to the
Registration Statement and the exhibits and schedules filed as a part of the
Registration Statement. Statements contained in this prospectus concerning the
contents of any contract or any other document referred to are not necessarily
complete; reference is
 
                                       71
<PAGE>   76
 
made in each instance to the copy of such contract or document filed as an
exhibit to the Registration Statement. Each such statement is qualified in all
respects by such reference to such exhibit. The Registration Statement,
including exhibits and schedules thereto, may be inspected without charge at the
Securities and Exchange Commission's public reference facilities in Room 1024,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the Securities and
Exchange Commission's regional offices located at the Northwest Atrium Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661 and Seven World
Trade Center, 13th Floor, New York, New York 10048, and copies of all or any
part of the Registration Statement may be obtained from such offices after
payment of fees prescribed by the Securities and Exchange Commission. The
Securities and Exchange Commission maintains a World Wide Web site that contains
reports, proxy and information statements and other information regarding
registrants that file electronically with the Securities and Exchange Commission
at http://www.sec.gov.
 
                                       72
<PAGE>   77
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Independent Auditors' Report................................  F-2
Consolidated Balance Sheets as of December 31, 1997 and 1998
  and as of March 31, 1999 (unaudited)......................  F-3
Consolidated Statements of Operations for the Years ended
  December 31, 1996, 1997 and 1998 and the Three Months
  Ended March 31, 1998 and 1999 (unaudited).................  F-4
Consolidated Statements of Stockholders' Equity for the
  Years ended December 31, 1996, 1997
  and 1998 and March 31, 1999 (unaudited)...................  F-5
Consolidated Statements of Cash Flows for the Years ended
  December 31, 1996, 1997 and 1998 and the Three Months
  Ended March 31, 1998 and 1999 (unaudited).................  F-6
Notes to Consolidated Financial Statements..................  F-7
</TABLE>
    
 
                                       F-1
<PAGE>   78
 
                          INDEPENDENT AUDITORS' REPORT
 
To the Stockholders and Board of Directors of
CRL Network Services, Inc.:
 
We have audited the accompanying consolidated balance sheets of CRL Network
Services, Inc. and subsidiary as of December 31, 1997 and 1998, and the related
consolidated statements of operations, stockholders' equity and cash flows for
each of the three years in the period ended December 31, 1998. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In our opinion, such consolidated financial statements present fairly, in all
material respects, the financial position of CRL Network Services, Inc. and
subsidiary as of December 31, 1997 and 1998, and the results of their operations
and their cash flows for each of the three years in the period ended December
31, 1998, in conformity with generally accepted accounting principles.
 
/s/ DELOITTE & TOUCHE LLP
 
San Francisco, California
March 18, 1999 (April 28, 1999 as to the last paragraph in Note 12)
 
                                       F-2
<PAGE>   79
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                          CONSOLIDATED BALANCE SHEETS
                      (IN THOUSANDS, EXCEPT SHARE AMOUNTS)
 
   
<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                                              ---------------    MARCH 31,
                                                               1997     1998       1999
                                                              ------   ------   -----------
                                                                                (UNAUDITED)
                                                                                 (NOTE 1)
<S>                                                           <C>      <C>      <C>
ASSETS
Current Assets:
  Cash and equivalents......................................  $1,115   $  840     $  354
  Accounts receivable, net of allowances for doubtful
     accounts of $162, $484 and $484, respectively..........   1,229    1,309      1,008
  Deferred tax assets.......................................     101       85         85
  Other.....................................................     161      131        645
                                                              ------   ------     ------
     Total current assets...................................   2,606    2,365      2,092
Property and equipment, net.................................   1,801    2,445      2,385
Other assets................................................      48       45         45
                                                              ------   ------     ------
          Total assets......................................  $4,455   $4,855      4,522
                                                              ======   ======     ======
 
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................  $  637   $  892     $  814
  Deferred revenue..........................................     603      594        217
  Accrued liabilities.......................................     628      170        546
  Current portion of long-term obligations..................     166      270        280
  Other.....................................................      18        9          6
                                                              ------   ------     ------
     Total current liabilities..............................   2,052    1,935      1,863
Deferred tax liabilities....................................     246      313        313
Long-term obligations.......................................     402      847        822
                                                              ------   ------     ------
     Total liabilities......................................   2,700    3,095      2,998
Commitments and contingencies
Stockholders' equity:
  Preferred stock, $.01 par value, 5,000,000 shares
     authorized; none issued and outstanding................
  Common stock, $0.0001 par value, 70,000,000 shares
     authorized; 18,978,832 shares issued and outstanding...       6        6          6
  Common stock options......................................              948      1,046
  Deferred stock compensation...............................             (792)      (739)
  Retained earnings.........................................   1,749    1,598      1,211
                                                              ------   ------     ------
     Total stockholders' equity.............................   1,755    1,760      1,524
                                                              ------   ------     ------
          Total liabilities and stockholders' equity........  $4,455   $4,855      4,522
                                                              ======   ======     ======
</TABLE>
    
 
              See notes to the consolidated financial statements.
                                       F-3
<PAGE>   80
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                THREE MONTHS
                                                 YEARS ENDED DECEMBER 31,     ENDED MARCH 31,
                                                --------------------------    ----------------
                                                 1996      1997      1998      1998      1999
                                                ------    ------    ------    ------    ------
                                                                                (UNAUDITED)
                                                                                  (NOTE 1)
<S>                                             <C>       <C>       <C>       <C>       <C>
REVENUES:
  Colocation and internet connectivity........  $4,600    $8,873    $9,681    $2,452    $2,142
  Systems integration and hardware sales......   1,753     1,502     2,011       529       861
                                                ------    ------    ------    ------    ------
          Total revenues......................   6,353    10,375    11,692     2,981     3,003
                                                ------    ------    ------    ------    ------
COSTS AND EXPENSES:
  Cost of colocation and internet
     connectivity.............................   2,219     3,631     4,871     1,211     1,229
  Cost of system integration and services.....   1,127     1,009     1,295       288       569
  Selling and marketing.......................     345       522       371       158        41
  General and administrative..................   1,840     2,997     4,124       847     1,325
  Depreciation................................     512       745       909       190       210
  Stock-based compensation expense............                         156                 151
                                                ------    ------    ------    ------    ------
          Total costs and expenses............   6,043     8,904    11,726     2,694     3,525
                                                ------    ------    ------    ------    ------
OPERATING INCOME (LOSS).......................     310     1,471       (34)      287      (522)
Net interest income (expense).................       1         5       (30)       (1)      (22)
                                                ------    ------    ------    ------    ------
Income (loss) before income taxes.............     311     1,476       (64)      286      (544)
Income tax provision (benefit)................     150       591        87        83      (157)
                                                ------    ------    ------    ------    ------
NET INCOME (LOSS).............................  $  161    $  885    $ (151)   $  203    $ (387)
                                                ======    ======    ======    ======    ======
Net income (loss) per common share --
  Basic and diluted...........................  $ 0.01    $ 0.05    $(0.01)   $ 0.01    $(0.02)
Weighted average common shares outstanding:
  Basic.......................................  18,979    18,979    18,979    18,979    18,979
  Diluted.....................................  18,979    19,142    18,979    19,283    18,979
</TABLE>
 
              See notes to the consolidated financial statements.
                                       F-4
<PAGE>   81
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                      (IN THOUSANDS, EXCEPT SHARE AMOUNTS)
 
   
<TABLE>
<CAPTION>
                                        COMMON STOCK       COMMON      DEFERRED                    TOTAL
                                     -------------------    STOCK       STOCK       RETAINED   STOCKHOLDERS'
                                       SHARES     AMOUNT   OPTIONS   COMPENSATION   EARNINGS      EQUITY
                                     ----------   ------   -------   ------------   --------   -------------
<S>                                  <C>          <C>      <C>       <C>            <C>        <C>
Balance, January 1, 1996...........  18,978,832     $6     $            $            $  703       $  709
Net income.........................                                                     161          161
                                     ----------     --     ------       -----        ------       ------
Balance, December 31, 1996.........  18,978,832      6                                  864          870
Net income.........................                                                     885          885
                                     ----------     --     ------       -----        ------       ------
Balance, December 31, 1997.........  18,978,832      6                                1,749        1,755
Compensatory stock arrangements....                           948        (948)
Amortization of deferred stock
  compensation.....................                                       156                        156
Net loss...........................                                                    (151)        (151)
                                     ----------     --     ------       -----        ------       ------
Balance, December 31, 1998.........  18,978,832      6        948        (792)        1,598        1,760
Compensatory stock arrangements
  (unaudited)......................                            98         (98)
Amortization of deferred stock
  compensation (unaudited).........                                       151                        151
Net loss (unaudited)...............                                                    (387)        (387)
                                     ----------     --     ------       -----        ------       ------
Balance, March 31, 1999
  (unaudited)......................  18,978,832     $6     $1,046       $(739)       $1,211       $1,524
                                     ==========     ==     ======       =====        ======       ======
</TABLE>
    
 
              See notes to the consolidated financial statements.
                                       F-5
<PAGE>   82
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                   THREE MONTHS
                                                      YEARS ENDED DECEMBER 31,    ENDED MARCH 31,
                                                      -------------------------   ---------------
                                                      1996     1997      1998      1998     1999
                                                      -----   -------   -------   -------   -----
                                                                                    (UNAUDITED)
<S>                                                   <C>     <C>       <C>       <C>       <C>
Cash Flows from Operating Activities:
  Net income (loss).................................  $ 161   $   885   $  (151)  $   203   $(387)
  Adjustments to reconcile net income (loss) to net
     cash provided by operating activities:
     Depreciation...................................    512       745       909       190     210
     Stock-based compensation expense...............                        156               151
     Loss on disposal of fixed assets...............               13                           3
     Deferred taxes.................................     52        50        89       (14)
     Changes in assets and liabilities:
       Accounts receivable, net.....................   (372)     (588)      (80)     (119)    301
       Other assets.................................      4       (64)        9        39    (514)
       Accounts payable and accrued expenses........    337       535      (209)     (344)    298
       Other liabilities............................    250       170       (18)       34    (380)
                                                      -----   -------   -------   -------   -----
          Net cash provided by (used in) operating
            activities..............................    944     1,746       705       (11)   (318)
                                                      -----   -------   -------   -------   -----
Cash Flows from Investing Activities:
  Additions to property and equipment...............   (988)   (1,336)   (1,553)     (275)   (159)
  Proceeds from sale of property and equipment......     17       143                           6
  Decrease in notes receivable from related parties,
     net............................................     66        11        24
                                                      -----   -------   -------   -------   -----
          Net cash used in investing activities.....   (905)   (1,182)   (1,529)     (275)   (153)
                                                      -----   -------   -------   -------   -----
Cash Flows from Financing Activities:
  Credit line borrowings............................              358       703       136      48
  Principal payments on borrowings..................    (14)      (42)     (154)      (36)    (63)
                                                      -----   -------   -------   -------   -----
          Net cash provided by (used in) financing
            activities..............................    (14)      316       549       100     (15)
                                                      -----   -------   -------   -------   -----
Net Increase (Decrease) in Cash and Equivalents.....     25       880      (275)     (186)   (486)
Cash and Equivalents at Beginning of Period.........    210       235     1,115     1,115     840
                                                      -----   -------   -------   -------   -----
Cash and Equivalents at End of Period...............  $ 235   $ 1,115   $   840   $   929   $ 354
                                                      =====   =======   =======   =======   =====
Supplemental Disclosure of Cash Flow Information:
  Cash paid for interest............................  $   7   $    23   $    70   $    13   $  22
  Cash paid for taxes...............................    165       166       577       351
Supplemental Disclosure of Noncash Financing
  Activities:
  Equipment acquired under capital lease............  $ 133   $   133
</TABLE>
 
              See notes to the consolidated financial statements.
                                       F-6
<PAGE>   83
 
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
               YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998, AND
                  THE MONTHS ENDED MARCH 31, 1999 (UNAUDITED)
           (IN THOUSANDS, EXCEPT FOR SHARE AND PER SHARE INFORMATION)
 
NOTE 1 -- SIGNIFICANT ACCOUNTING POLICIES
 
THE COMPANY -- CRL Network Services, Inc. and subsidiary ("CRL" or the
"Company") was incorporated in the state of California in 1993. CRL is a Tier 1
Internet service provider focused on offering tailored Internet and network
management solutions to small and medium-sized businesses across the United
States through a national fiber-optic data network.
 
UNAUDITED INTERIM FINANCIAL INFORMATION -- The interim financial information as
of March 31, 1999 and for the three months ended March 31, 1998 and 1999 is
unaudited and has been prepared on the same basis as the audited financial
statements. In the opinion of management, such unaudited information includes
all adjustments (consisting only of normal recurring adjustments) necessary for
a fair presentation of the interim information. Operating results for the three
months ended March 31, 1999 are not necessarily indicative of the results that
may be expected for the year ending December 31, 1999.
 
PRINCIPLES OF CONSOLIDATION -- The consolidated financial statements include the
accounts of CRL and its wholly owned subsidiary. All intercompany balances and
transactions have been eliminated.
 
USE OF ESTIMATES -- The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
CASH AND EQUIVALENTS -- The Company considers all highly liquid monetary
instruments with an original maturity of three months or less from the date of
purchase to be cash equivalents.
 
PROPERTY AND EQUIPMENT -- Property and equipment are recorded at cost and
depreciated using the straight-line method over their useful lives. Equipment
held under capital leases is amortized on the straight-line method over the
shorter of the lease term or the estimated useful life of the asset. Estimated
useful lives are as follows:
 
<TABLE>
<S>                                                           <C>
Machinery, equipment and purchased software.................  3 to 5
Furniture and fixtures......................................  5 to 7
Airplane....................................................    10
</TABLE>
 
REVENUE RECOGNITION -- Revenues from colocation and internet connectivity
include internet and secure private network connectivity, remote management
services and hosting services. Revenues from these services are generally earned
from fixed term contracts lasting from 12 to 36 months. Revenues are recognized
on a pro rata basis when the services are performed. Deferred revenue represents
amounts billed in advance of services not yet provided. Revenues from systems
integration and hardware sales result from short term contracts and revenue is
recognized when hardware is shipped and the installation and integration is
complete.
 
ADVERTISING EXPENSES -- All costs related to marketing and advertising the
Company's products are expensed in the periods incurred. Advertising expenses
were $80, $27 and $60 for 1996, 1997 and 1998, respectively.
 
INCOME TAXES -- The Company accounts for income taxes using the asset and
liability method in accordance with Statement of Financial Accounting Standards
No. 109 ("SFAS 109"). Under this method, deferred tax liabilities and assets are
determined based on the difference between the financial
 
                                       F-7
<PAGE>   84
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 1 -- SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
statement and tax bases of assets and liabilities using enacted tax rates in
effect for the year in which the differences are expected to reverse.
 
STOCK-BASED COMPENSATION -- The Company accounts for stock-based awards to
employees using the intrinsic value method in accordance with APB No. 25,
Accounting for Stock Issued to Employees. Accordingly, no accounting recognition
is given to stock options granted at fair market value until they are exercised.
Compensation expense related to employee stock options is recorded if, on the
date of grant, the fair value of the underlying stock exceeds the exercise
price.
 
CONCENTRATION OF CREDIT RISK -- Financial instruments that potentially subject
the Company to concentration of credit risk consist of trade receivables. The
Company's receivables are subject to geographic concentrations of credit risk.
This risk is mitigated by the Company's credit evaluation process and the
reasonably short collection terms. The Company does not require collateral or
other security to support accounts receivable and maintains reserves for
potential credit losses.
 
FINANCIAL INSTRUMENTS -- The Company's financial instruments include cash and
equivalents, accounts receivable and debt. At December 31, 1997 and 1998, the
carrying amounts of these instruments approximates their fair values.
 
IMPAIRMENT OF LONG-LIVED ASSETS AND LONG-LIVED ASSETS TO BE DISPOSED OF -- The
Company evaluates its long-lived assets for impairment whenever events or
changes in circumstances indicate that the carrying amount of such assets or
intangibles may not be recoverable. Recoverability of assets to be held and used
is measured by a comparison of the carrying amount of an asset to future
undiscounted net cash flows expected to be generated by the asset. If such
assets are considered to be impaired, the impairment to be recognized is
measured by the amount by which the carrying amount of the assets exceeds the
fair value of the assets. Assets to be disposed of are reported at the lower of
the carrying amount or fair value less costs to sell.
 
NET INCOME (LOSS) PER SHARE -- Basic income (loss) per share excludes dilution
and is computed by dividing net income (loss) by the weighted-average number of
common shares outstanding for the period. Diluted income (loss) per share
reflects the potential dilution that could occur if options to issue common
stock were exercised.
 
STOCKHOLDERS' EQUITY -- In August 1997, the Company's Board of Directors
authorized a 2,318 for 1 stock split. The stock split was effective and
distributed to the sole stockholder of record on August 8, 1997. Additionally,
in December 1998, the Company's Board of Directors authorized a 20 for 1 stock
split. The stock split was effective and distributed to the sole stockholder of
record on December 2, 1998. All share information in the financial statements
has been restated to give retroactive recognition to the stock splits.
 
In December 1998, the Board also authorized an increase in the number of
authorized shares of common stock to 200,000,000 (not giving effect to the
reincorporation).
 
COMPREHENSIVE INCOME -- There are no differences between comprehensive income
and net income as reported in the Company's statements of operations.
 
RECLASSIFICATIONS -- Certain prior years amounts have been reclassified to
conform to the current year presentation. Such reclassifications had no effect
on stockholders' equity or net income (loss).
 
RECENTLY ISSUED ACCOUNTING STANDARDS -- In March 1998, the Accounting Standards
Executive Committee of the American Institute of Certified Public Accountants
issued SOP 98-1, Accounting for the Costs of Computer Software Developed or
Obtained for Internal Use. SOP 98-1 provides guidance for an enterprise on
accounting for the costs of computer software developed or obtained for internal
use. SOP 98-1 is
 
                                       F-8
<PAGE>   85
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 1 -- SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
effective for the Company in fiscal 1999. The Company anticipates that
accounting for transactions under SOP 98-1 will not have a material impact on
the Company's financial position or results of operations.
 
In June 1998, the FASB issued SFAS No. 133, Accounting for Derivative
Instruments and Hedging Activities, which defines derivatives, requires that all
derivatives be carried at fair value, and provides for hedge accounting when
conditions specified in SFAS No. 133 are met. SFAS No. 133 is effective for the
Company in fiscal 2000. The Company does not believe adoption of this statement
will have a material impact on the Company's financial position or results of
operations.
 
NOTE 2 -- MERGER
 
   
On December 21, 1998, the merger of Integral Networking Corporation ("Integral")
was completed. Under the terms of the Integral merger, which was accounted for
as a pooling-of-interests, 434,832 shares of CRL common stock were exchanged for
all of the outstanding Integral common shares at an exchange ratio of 5.80
shares of CRL for each share of Integral.
    
 
The financial information for all prior periods presented has been restated to
present the combined financial condition and results of operations for both
companies as if the merger had been in effect for all periods presented.
 
The following table presents a reconciliation of net sales and net income (loss)
previously reported by the company to those presented in the accompanying
consolidated financial statements.
 
<TABLE>
<CAPTION>
                                                  1996      1997       1998
                                                 ------    -------    -------
<S>                                              <C>       <C>        <C>
Net sales:
  CRL..........................................  $5,206    $ 9,340    $ 9,929
  Integral.....................................   1,147      1,035      1,763
                                                 ------    -------    -------
Combined.......................................  $6,353    $10,375    $11,692
                                                 ------    -------    -------
Net income (loss):
  CRL..........................................  $  237    $   891    $  (123)
  Integral.....................................     (76)        (6)       (28)
                                                 ------    -------    -------
Combined.......................................  $  161    $   885    $  (151)
                                                 ======    =======    =======
</TABLE>
 
NOTE 3 -- ALLOWANCES FOR DOUBTFUL ACCOUNTS
 
Allowances for doubtful accounts are estimated and established based on
historical experience and specific circumstances of each customer. Additions to
the allowance are charged to general and administrative expenses. Accounts
receivable are written off against the allowance for doubtful accounts when an
account is deemed uncollectible. Recoveries on accounts receivable previously
charged off as uncollectible are credited to the allowance for doubtful
accounts. Changes in the allowance for doubtful accounts were as follows:
 
<TABLE>
<CAPTION>
                                                             THREE MONTHS ENDED
                                    1996    1997     1998      MARCH 31, 1999
                                    ----    -----    ----    ------------------
                                                                (UNAUDITED)
<S>                                 <C>     <C>      <C>     <C>
Beginning balance.................  $  7    $  96    $162          $ 484
Additions.........................   112      624     508            126
Writeoffs.........................   (23)    (558)   (186)          (126)
                                    ----    -----    ----          -----
Balance, end of period............  $ 96    $ 162    $484            484
                                    ====    =====    ====          =====
</TABLE>
 
                                       F-9
<PAGE>   86
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 4 -- PROPERTY AND EQUIPMENT
 
Property and equipment consisted of the following:
 
<TABLE>
<CAPTION>
                                                              1997      1998
                                                             ------    ------
<S>                                                          <C>       <C>
Machinery, equipment and purchased software................  $2,892    $4,208
Furniture and equipment held under capital lease...........     265       135
Furniture and fixtures.....................................     191       558
Airplane...................................................      40        40
                                                             ------    ------
          Total............................................   3,388     4,941
Less accumulated depreciation..............................  (1,587)   (2,496)
                                                             ------    ------
          Total............................................  $1,801    $2,445
                                                             ======    ======
</TABLE>
 
On April 15, 1997, the Company sold an airplane with book value of $148 for
$143.
 
The accumulated depreciation associated with furniture and equipment held under
capital lease was $70 and $67 at December 31, 1997 and 1998, respectively.
 
Effective January 1, 1998, the Company changed the estimated service lives of
its switches and routers from three to five years. The effect of this change in
estimate increased 1998 operating income by $237, increased net income by $142
and increased diluted earnings per share by $0.01.
 
NOTE 5 -- LONG-TERM OBLIGATIONS
 
On September 2, 1997, the Company entered into a revolving line of credit
agreement for $50 with a bank. As of December 31, 1998, the line had no
available credit and a variable interest rate that is 2.5% above the prime rate
(10.25% at December 31, 1998). All borrowings are to be repaid over a period of
no more than five years.
 
On September 26, 1997, the Company entered into a line of credit agreement for
$500 with a bank. As of December 31, 1998 the line has no available credit and
has a variable interest rate that is 1.75% above the prime rate (9.5% at
December 31, 1998). All borrowings are personally guaranteed by the Chief
Executive Officer and are to be repaid over a period of no more than 8 years. On
March 30, 1998, the Company entered into an equipment line of credit agreement
for $692 with a bank. The equipment line is available for one year at an
interest rate of prime plus 1.5% (9.25% at December 31, 1998). As of December
31, 1998 the line had $95 of available credit. All borrowings are personally
guaranteed by the Chief Executive Officer and are to be repaid over a period of
no more than eight years. At December 31, 1998, principal repayments under these
credit agreement are required as follows:
 
<TABLE>
<S>                                                           <C>
1999........................................................  $  222
2000........................................................     223
2001........................................................     222
2002........................................................     257
2003........................................................     104
                                                              ------
          Total.............................................  $1,028
                                                              ======
</TABLE>
 
   
In September 1998 the Company entered into two additional credit agreements with
a bank. The first agreement makes $200 available for one year at an interest
rate of prime plus 1.5% for general business purpose. The second agreement is an
equipment line of credit for $650. The equipment line of credit is available for
one year with a variable interest rate of prime plus 1.8%. As of December 31,
1998 the Company has had no borrowings under these agreements. All future
borrowings are to be repaid over a period of no more than eight years.
    
 
                                      F-10
<PAGE>   87
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 5 -- LONG-TERM OBLIGATIONS (CONTINUED)
Amounts borrowed under these agreements are secured by substantially all of the
Company's assets.
 
NOTE 6 -- INCOME TAXES
 
Income taxes consist of the following at December 31:
 
<TABLE>
<CAPTION>
                                                        1996    1997    1998
                                                        ----    ----    ----
<S>                                                     <C>     <C>     <C>
Current:
  Federal.............................................  $ 72    $412    $ 21
  State...............................................    26     129     (23)
                                                        ----    ----    ----
          Total current...............................    98     541      (2)
                                                        ----    ----    ----
Deferred:
  Federal.............................................    42      49      41
  State...............................................    10       1      48
                                                        ----    ----    ----
          Total deferred..............................    52      50      89
                                                        ----    ----    ----
          Total provision.............................  $150    $591    $ 87
                                                        ====    ====    ====
</TABLE>
 
The primary components of the deferred tax accounts as of December 31 are as
follows:
 
<TABLE>
<CAPTION>
                                                     1996     1997     1998
                                                     -----    -----    -----
<S>                                                  <C>      <C>      <C>
Current deferred tax assets (liabilities):
  Allowance for bad debts and other................  $  27    $ 111    $ 120
  Deferred rent....................................    (48)                1
  Other............................................     46      (10)     (36)
                                                     -----    -----    -----
          Total current deferred tax assets........  $  25    $ 101    $  85
                                                     =====    =====    =====
Noncurrent deferred tax assets (liabilities):
  Deferred rent....................................  $   8    $   8    $   9
  Depreciation.....................................    (84)    (215)    (386)
  Federal net operating loss.......................                       89
  Cash to accrual adjustment.......................    (42)     (33)     (25)
  Other............................................              (6)
                                                     -----    -----    -----
          Total noncurrent deferred tax
            liabilities............................  $(118)   $(246)   $(313)
                                                     =====    =====    =====
</TABLE>
 
                                      F-11
<PAGE>   88
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 6 -- INCOME TAXES (CONTINUED)
The Company's effective tax rate differs from the federal statutory tax rate as
follows:
 
<TABLE>
<CAPTION>
                                                          1996    1997    1998
                                                          ----    ----    ----
<S>                                                       <C>     <C>     <C>
Federal statutory tax rate..............................   34%     34%    (34)%
State taxes, net of federal benefit.....................    6       6      (6)
Tax effect of permanent items...........................                   72
50% disallowance of state tax net operating loss........                    7
Nondeductible compensation expense......................                   97
Disallowance of net operating losses....................   12
Other...................................................   (4)     (1)
                                                           --      --     ---
Effective tax rate......................................   48%     39%    136%
                                                           ==      ==     ===
</TABLE>
 
No valuation allowance has been established for the deferred tax asset.
Management believes that the Company will be able to realize the tax benefit of
the deferred tax assets based on expected future taxable income and the future
reversal of taxable temporary differences.
 
NOTE 7 -- STOCK OPTION AND OTHER EMPLOYEE BENEFIT PLANS
 
401(k) PLAN -- In September 1997, the Company implemented a 401(k) plan covering
all employees who have met eligibility requirements specified in the 401(k)
plan. Under the 401(k) plan, employees may elect to contribute up to 15% of
their eligible compensation (to a maximum of $10) to the 401(k) plan, subject to
limitations. The Company may make matching contributions at its discretion. As
of December 31, 1997 and 1998, the Company had not made any contributions to the
401(k) plan.
 
STOCK BASED COMPENSATION PLAN -- In August 1997, the Board of Directors approved
and the Company adopted the 1997 Equity Incentive Plan (the "Plan"). Under the
Plan, the Company may grant options to purchase 1,812,107 shares of common stock
to officers and employees. These options generally expire 10 years from the date
of grant and vest over a period of five years.
 
Option activity under the plans is as follows:
 
<TABLE>
<CAPTION>
                                                     NUMBER OF   WEIGHTED-AVERAGE
                                                      OPTIONS     EXERCISE PRICE
                                                     ---------   ----------------
<S>                                                  <C>         <C>
Balance, January 1, 1997...........................         --        $  --
Granted............................................    647,547         1.83
Canceled...........................................    (66,667)        1.83
                                                     ---------        -----
Balance, December 31, 1997 (no shares vested)......    580,880         1.83
Granted............................................    468,773         2.40
Canceled...........................................    (96,666)        1.83
                                                     ---------        -----
Balance, December 31, 1998.........................    952,987        $2.11
Granted (unaudited)................................     53,333         3.41
                                                     ---------        -----
Balance, March 31, 1999 (unaudited)................  1,006,320        $2.18
                                                     =========        =====
</TABLE>
 
At December 31, 1998, 96,843 shares were exercisable and 899,120 were available
for grant under the 1997 stock option plan.
 
During the year ended December 31, 1998, deferred compensation of $948 was
recorded for options granted of which $156 was amortized to compensation
expense. The remaining deferred compensation will be amortized over the balance
of the five-year vesting period of the stock options.
 
                                      F-12
<PAGE>   89
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 7 -- STOCK OPTION AND OTHER EMPLOYEE BENEFIT PLANS (CONTINUED)
   
During the first quarter, CRL granted 43,333 stock options at a weighted average
exercise price of $2.73. These grants were made under the 1997 Equity Incentive
Plan. These options were granted below the fair market value of the stock on the
grant date. These transactions resulted in total deferred compensation expense
of $98. The compensation expense will be recorded over the five-year vesting
period of the options.
    
 
The following table summarizes information about currently outstanding and
vested stock options at December 31, 1998:
 
<TABLE>
<CAPTION>
                                             OPTIONS OUTSTANDING                 OPTIONS VESTED
                                   ---------------------------------------   -----------------------
                                                     WEIGHTED
                                                      AVERAGE     WEIGHTED                  WEIGHTED
                                   OUTSTANDING AT    REMAINING    AVERAGE     VESTED AT     AVERAGE
                                    DECEMBER 31,    CONTRACTUAL   EXERCISE   DECEMBER 31,   EXERCISE
         EXERCISE PRICE                 1998           LIFE        PRICE         1998        PRICE
         --------------            --------------   -----------   --------   ------------   --------
<S>                                <C>              <C>           <C>        <C>            <C>
$1.83............................      484,213         8.69        $1.83        96,843       $1.83
 2.28............................      332,107         9.71         2.28
 2.73............................      136,667         9.98         2.73
                                     ---------                     -----       -------       -----
                                       952,987                     $2.11        96,843       $1.83
                                     =========                     =====       =======       =====
</TABLE>
 
ADDITIONAL STOCK PLAN INFORMATION -- As discussed in Note 1, the Company
accounts for its stock-based awards to employees using the intrinsic value
method in accordance with APB No. 25, Accounting for Stock Issued to Employees,
and its related interpretations.
 
SFAS No. 123, Accounting for Stock-Based Compensation, requires the disclosure
of pro forma net income (loss) and earnings (loss) per share had the Company
adopted the fair value method since the Company's inception. Under SFAS No. 123,
the fair value of stock-based awards to employees is calculated through the use
of option pricing models, even though such models were developed to estimate the
fair value of freely tradable, fully transferable options without vesting
restrictions, which significantly differ from the Company's stock option awards.
 
The Company's calculations for employee grants were made using the minimum
option pricing model with the following weighted average assumptions:
 
<TABLE>
<CAPTION>
                                                              YEARS ENDED
                                                              DECEMBER 31,
                                                              ------------
                                                              1997    1998
                                                              ----    ----
<S>                                                           <C>     <C>
Dividend yield..............................................  None    None
Risk free interest rate.....................................   5.7%    4.4%
Expected term, in years.....................................   5.5       3
</TABLE>
 
The weighted average minimum value per option as of the date of grant for
options granted during 1997 and 1998 was $0.48 and $2.13, respectively.
 
If the computed minimum values of the Company's stock-based awards to employees
had been amortized to expense over the vesting period of the awards as specified
under SFAS No. 123, loss attributable to
 
                                      F-13
<PAGE>   90
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 7 -- STOCK OPTION AND OTHER EMPLOYEE BENEFIT PLANS (CONTINUED)
common stockholders and basic and diluted loss per share on a pro forma basis
(as compared to such items as reported) would have been:
 
<TABLE>
<CAPTION>
                                                                YEARS ENDED
                                                               DECEMBER 31,
                                                              ---------------
                                                              1997      1998
                                                              -----    ------
<S>                                                           <C>      <C>
Net income (loss) attributable to common stockholders:
  As reported...............................................  $ 885    $ (151)
  Pro forma.................................................    828      (192)
Diluted net income (loss) per share:
  As reported...............................................  $0.05    $(0.01)
  Pro forma.................................................   0.04     (0.01)
</TABLE>
 
NOTE 8 -- NET INCOME (LOSS) PER SHARE
 
The following is a reconciliation of the denominators used in computing basic
and diluted net income (loss) per share (in thousands):
 
<TABLE>
<CAPTION>
                                                                              THREE MONTHS ENDED
                                                 YEARS ENDED DECEMBER 31,         MARCH 31,
                                                --------------------------    ------------------
                                                 1996      1997      1998      1998       1999
                                                ------    ------    ------    -------    -------
<S>                                             <C>       <C>       <C>       <C>        <C>
Shares used in the computation of Basic EPS...  18,979    18,979    18,979    18,979     18,979
Effect of dilutive stock options..............               163                 304
                                                ------    ------    ------    ------     ------
Shares used in the computation of Diluted
  EPS.........................................  18,979    19,142    18,979    19,283     18,979
                                                ======    ======    ======    ======     ======
</TABLE>
 
The Company had options to purchase 952,987 and 1,006,320 shares of common stock
at December 31, 1998, and March 31, 1999, respectively outstanding which could
potentially dilute basic earnings per share in the future, but were excluded in
the computation of diluted net loss per share in the periods presented, as their
effect would have been antidilutive.
 
NOTE 9 -- RELATED PARTY TRANSACTIONS
 
In August 1995, the Company received a 7.5% promissory note for $106 from a
stockholder for cash. The note specified that the entire principal plus accrued
interest were to be paid by July 10, 2000. During 1998, the stockholder repaid
the remaining amount outstanding.
 
In April 1996, the Company received an 8% promissory note for $25 from an
employee. The note specified that payment of principal and interest is to be
paid annually in the amount of $5 plus accrued interest until fully paid. At
December 31, 1998, the remaining balance on this note was $15.
 
In 1997 CRL entered into an agreement with FBN Holding Co. ("FBN") to lease
aircraft time. The sole owner of FBN is also the President and Chief Executive
Officer of CRL. This agreement may be canceled at any time by either party with
30-day notice. The amount paid to FBN for travel services under the agreement
amounted to $0, $104 and $144 for the years ended December 31, 1996, 1997 and
1998, respectively.
 
NOTE 10 -- GEOGRAPHIC INFORMATION AND MAJOR CUSTOMERS
 
CRL operates in a single industry segment encompassing internet access and
related managed data services and equipment sales. All of CRL's revenues in each
year is received from customers based in the
 
                                      F-14
<PAGE>   91
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 10 -- GEOGRAPHIC INFORMATION AND MAJOR CUSTOMERS (CONTINUED)
United States. Approximately $5,221, $8,181 and $8,950 of CRL's revenues were
received from customers in the thirteen Western U.S. states and $5,010, $7,653
and $8,174 was received from customers in California for 1996, 1997 and 1998,
respectively.
 
No single customer accounted for 10% or more of CRL's net sales in any year.
 
NOTE 11 -- COMMITMENTS AND CONTINGENCIES
 
   
LEASES -- CRL leases office and storage space under operating leases with terms
ranging from month-to-month to six years at various times through 2005. Rent
expense under all leases was $145, $224 and $377 for 1996, 1997 and 1998,
respectively. Future minimum lease payments for capital lease obligations and
net lease payments under noncancelable operating leases with remaining terms in
excess of one year at December 31, 1998 are as follows:
    
 
<TABLE>
<CAPTION>
                                                       CAPITAL LEASE    OPERATING
                                                        OBLIGATIONS      LEASES
                                                       -------------    ---------
<S>                                                    <C>              <C>
Year ending December 31:
  1999...............................................       $49          $  453
  2000...............................................        38             326
  2001...............................................                       253
  2002...............................................                       205
  2003...............................................                       121
  Thereafter.........................................                       201
                                                            ---          ------
          Total minimum lease payments...............        87          $1,559
                                                                         ======
Less amount representing interest....................        (9)
                                                            ---
Capital lease obligations............................        78
Less current portion.................................       (49)
                                                            ---
Long-term portion....................................       $29
                                                            ===
</TABLE>
 
   
TELECOMMUNICATIONS AND PEERING ARRANGEMENTS -- CRL enters into
telecommunications agreements with telephone companies who provide local access
for dial-up customers to CRL's Internet backbone. The terms of the service
agreements vary from one to two years and provide CRL with preferred rates. If
CRL prematurely cancels one of these service contracts, the service provider, at
its discretion, can charge the difference between their regular rates and the
preferred rate over the term of the service. Accordingly, the financial
commitment under these agreements would be the cancellation fee. In the past, no
service provider has exercised this option. Management believes that potential
additional charges, if any, from early cancellation of vendor service contracts
would not have a material effect on the financial statements.
    
 
   
CRL is party to numerous peering arrangements with other internet providers to
allow for the exchange of internet traffic. CRL does not record any revenue or
expense associated with these non-cash transactions as such transactions do not
represent the culmination of the earnings process and the fair value of such
transactions are not reasonably determinable. There is no financial commitment
under these peering arrangements.
    
 
Subject to few exceptions, CRL's peering relationships are not subject to any
written agreements and could be terminated at any time. For those peering
arrangements subject to contracts, there are no
 
                                      F-15
<PAGE>   92
                   CRL NETWORK SERVICES, INC. AND SUBSIDIARY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
NOTE 11 -- COMMITMENTS AND CONTINGENCIES (CONTINUED)
minimum fixed charges for data exchange. Such agreements generally do impose
minimum usage requirements at levels which CRL has in the past always exceeded.
 
LEGAL MATTERS -- CRL is involved in a limited number of claims and legal actions
arising out of the normal course of business. Management does not expect that
the outcome of these cases will have a material effect on CRL's financial
position, results of operations or cash flow.
 
QWEST DISPUTE -- CRL is currently in a dispute with Qwest Communications
Corporation involving fiber cable they own connecting several cities. Qwest
agreed to lease fiber that was to be installed and available to CRL by specified
dates. Qwest did not complete installation as agreed. CRL believes that Qwest is
obligated to provide free service as a result of the installation delay. As of
December 31, 1998, Qwest has demanded payment of $136 which includes a credit of
$108 for free service. CRL disputes the installation dates and application of
service order terms and is seeking to negotiate a settlement of the dispute. As
of December 31, 1998, no accrual had been made for the Qwest dispute.
 
NOTE 12 -- SUBSEQUENT EVENTS
 
On March 11, 1999, CRL terminated its relationship with FBN effective April 30,
1999 (see Note 9).
 
   
On March 18, 1999, the Board of Directors adopted, subject to stockholder
approval, the 1999 Stock Incentive Plan. A total of 1,000,000 shares of common
stock have initially been reserved for issuance under the 1999 Stock Incentive
Plan.
    
 
On March 18, 1999, the Board of Directors adopted, subject to stockholder
approval, the reincorporation of CRL in the State of Delaware and the associated
exchange of one share of common stock of CRL for every three shares of common
stock of CRL's California predecessor. Such reincorporation and stock exchange
will become effective prior to the effective date of the initial public offering
contemplated by CRL. All share and per share amounts in these financial
statements have been adjusted to give effect to the reincorporation and one for
three stock exchange. In addition, upon reincorporation in the State of
Delaware, the Board of Directors is authorized to issue up to 5,000,000 shares
of preferred stock in one or more series.
 
On April 28, 1999 CRL completed the reincorporation of CRL in the State of
Delaware and the associated exchange of one share of common stock of CRL for
every three shares of common stock of CRL's California predecessor.
 
                                      F-16
<PAGE>   93
 
- --------------------------------------------------------------------------------
 
                                      LOGO
 
   
                                5,850,000 SHARES
    
 
                                  COMMON STOCK
 
                              --------------------
 
                                   PROSPECTUS
                              --------------------
 
                                            , 1999
 
                               CIBC WORLD MARKETS
 
                                LEHMAN BROTHERS
 
                            ------------------------
 
                                 DLJdirect INC.
 
- --------------------------------------------------------------------------------
 
YOU MAY RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROSPECTUS. WE HAVE NOT
AUTHORIZED ANYONE TO PROVIDE PROSPECTIVE INVESTORS WITH DIFFERENT OR ADDITIONAL
INFORMATION FROM THAT CONTAINED IN THIS PROSPECTUS. THIS PROSPECTUS IS NOT AN
OFFER TO SELL NOR IS IT SEEKING AN OFFER TO BUY THESE SECURITIES IN ANY
CIRCUMSTANCES WHERE THE OFFER OR SALE IS UNLAWFUL. THE INFORMATION CONTAINED IN
THIS PROSPECTUS IS CORRECT ONLY AS OF THE DATE OF THIS PROSPECTUS, REGARDLESS OF
THE TIME OF THE DELIVERY OF THIS PROSPECTUS OR ANY SALE OF THESE SECURITIES.
 
DEALER PROSPECTUS DELIVERY OBLIGATION: UNTIL             , 1999 (25 DAYS AFTER
THE DATE OF THIS PROSPECTUS), ALL DEALERS THAT BUY, SELL OR TRADE THESE SHARES
OF COMMON STOCK, WHETHER OR NOT PARTICIPATING IN THIS OFFERING, MAY BE REQUIRED
TO DELIVER A PROSPECTUS. THIS IS IN ADDITION TO THE DEALERS' OBLIGATION TO
DELIVER A PROSPECTUS WHEN ACTING AS UNDERWRITERS AND WITH RESPECT TO THEIR
UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
<PAGE>   94
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
The following costs and expenses, other than underwriting discounts and
commissions, payable by the Registrant in connection with this offering. All
amounts are estimates except the SEC registration fee, the NASD filing fee and
the Nasdaq National Market listing fee.
 
   
<TABLE>
    <S>                                                               <C>
    SEC registration fee........................................      $   28,054
    NASD fee....................................................          10,592
    Nasdaq National Market listing fee..........................          95,000
    Printing and engraving costs................................         140,000
    Legal fees and expenses.....................................         450,000
    Accounting fees and expenses................................         300,000
    Blue Sky fees and expenses..................................           3,000
    Transfer agent and registrar fees and expenses..............           3,500
    Miscellaneous...............................................          59,854
                                                                      ----------
              Total.............................................      $1,090,000
                                                                      ==========
</TABLE>
    
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
Section 145 of the General Corporation Law of the State of Delaware provides for
the indemnification of officers and directors under certain circumstances
against expenses incurred in successfully defending against a claim and
authorizes Delaware corporations to indemnify their officers and directors under
certain circumstances against expenses and liabilities incurred in legal
proceedings involving such persons because of their being or having been an
officer or director. Article VIII of the Registrant's Certificate of
Incorporation and the Registrant's Bylaws provide that all persons who the
Registrant is empowered to indemnify pursuant to the provisions of Section 145
of the Delaware General Corporation Law (or any similar provision or provisions
of applicable law at the time in effect), shall be indemnified by the Registrant
to the full extent permitted thereby. The foregoing right of indemnification
shall not be deemed to be exclusive of any other rights to which those seeking
indemnification may be entitled under any by-law, agreement, vote of
stockholders or disinterested directors, or otherwise.
 
   
Section 102(b) of the Delaware General Corporation Law permits a corporation, by
so providing in its certificate of incorporation, to eliminate or limit
director's liability to the corporation and its stockholders for monetary
damages arising out of certain alleged breaches of their fiduciary duty. Section
102(b)(7) provides that no such limitation of liability may affect a director's
liability with respect to any of the following: (i) breaches of the director's
duty of loyalty to the corporation or its stockholders; (ii) acts or omissions
not made in good faith or which involve intentional misconduct of knowing
violations of law; (iii) liability for dividends paid or stock repurchased or
redeemed in violation of the Delaware General Corporation Law; or (iv) any
transaction from which the director derived an improper personal benefit.
Section 102(b)(7) does not authorize any limitation on the ability of the
corporation or its stockholders to obtain injunctive relief, specific
performance or other equitable relief against directors.
    
 
Reference is made to the Underwriting Agreement, the proposed form of which is
filed as Exhibit 1.1, pursuant to which the underwriters agree to indemnify the
directors and certain officers of the Registrant and certain other persons in
certain circumstances.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES.
 
Since January 1, 1996, the Registrant's predecessor company has issued and sold
the following securities:
 
   
On December 21, 1998, in connection with the Registrant's merger with Integral
Networking Corporation, the Registrant issued 413,091 shares of its common stock
to Robert Ross and 21,741 shares of its common
    
                                      II-1
<PAGE>   95
 
   
stock to Jim and Judy Linstruth (giving effect to the Registrant's
reincorporation in Delaware and the associated exchange of one share of common
stock of the Registrant for every three shares of common stock of CRL's
California predecessor), the three former shareholders of Integral Networking
Corporation, as consideration for all the outstanding shares of Integral
Networking Corporation.
    
 
   
The issuance and sale of the above securities were exempt from registration
under the Securities Act in reliance upon Section 4(2) of the Securities Act
promulgated thereunder. The recipients of securities in each such transaction
represented their intentions to acquire the securities for investment only and
not with a view to or for sale in connection with any distribution thereof, and
appropriate legends were affixed to the share certificates issued in such
transactions. All recipients had adequate access to information about the
Registrant.
    
 
   
On April 27, 1999, Philip Burkhart exercised an option to purchase 60,000 shares
of the Registrant's common stock for an aggregate exercise price of $109,800.
The issuance of these securities was exempt from registration under the
Securities Act in reliance on Rule 701 promulgated under the Securities Act.
Such issuance was made pursuant to the Registrant's 1997 Equity Incentive Plan.
    
 
   
On April 28, 1999, CRL Network Services, Inc., a California corporation ("CRL
California"), merged with and into its wholly-owned subsidiary, CRL Network
Services, Inc., a Delaware corporation ("CRL Delaware"). In connection with the
merger, CRL Delaware issued shares of its common stock to the holders of common
stock of CRL California, such that the holders of common stock of CRL California
received a proportionate interest in CRL Delaware common stock. The issuance of
the securities and such reincorporation were exempt from the registration
requirements of the Securities Act, due to the exemptions from registration
provided by Sections 3(a)(9) and 4(2) thereof.
    
 
ITEM 16. EXHIBITS
 
(a) Exhibits
 
   
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                             DESCRIPTION
- -------                             -----------
<S>         <C>
 1.1        Form of Underwriting Agreement.(1)
 2.1        Certificate of Merger between the Registrant and CRL Network
            Services, Inc., a California corporation ("CRL
            California").(3)
 3.1        Articles of Incorporation of CRL California.(1)
 3.2        Certificate of Incorporation of the Registrant.(1)
 3.3        Bylaws of CRL California.(1)
 3.4        Bylaws of the Registrant.(3)
 4.1        Specimen form of Registrant's Common Stock Certificate.
 5.1        Opinion of Gibson, Dunn & Crutcher LLP.
10.1        Employment Agreement between the Registrant and James G.
            Couch dated as of March 15, 1999.(1)
10.2        Employment Agreement between the Registrant and Robert A.
            Ross dated December 21, 1998.(1)
10.3        1997 Equity Incentive Plan.(1)
10.4        1999 Stock Incentive Plan, as amended.
10.5        Equipment Lease between Saddleback Financial Corporation and
            CRL Network Services, Inc. executed on June 12, 1997.(1)
10.6        Addendum to Lease between Saddleback Financial Corporation
            and CRL Network Services, Inc. executed June 12, 1997.(1)
10.7        Mandatory Purchase Option Letter between Saddleback
            Financial Corporation and CRL Network Services, Inc.
            executed June 12, 1997.(1)
</TABLE>
    
 
                                      II-2
<PAGE>   96
 
   
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                             DESCRIPTION
- -------                             -----------
<S>         <C>
10.8        Wells Fargo Bank $500,000 Equipment Line of Credit made
            available to CRL Network Services dated September 25,
            1997.(1)
10.9        Wells Fargo Bank $692,000 Equipment Line of Credit made
            available to CRL Network Services dated March 30, 1998.(1)
10.10       Wells Fargo Bank $650,000 Equipment Line of Credit made
            available to CRL Network Services dated September 29,
            1998.(1)
10.11       Wells Fargo Bank $200,000 PrimeLine of Credit made available
            to CRL Network Services dated September 28, 1998.(1)
10.12**     Agreement between Pacific Bell and CRL Network Services
            dated as of September 22, 1998.
10.13**     Master Services Agreement between GST-Telecom California
            Inc. and CRL Network Services dated August 31, 1998.
10.14       Domestic (U.S.) Direct Peering Agreement between MCI
            Telecommunications Corporation and CRL Network Services
            dated August 1, 1998.(2)
10.15**     Agreement between CRL Network Services, Inc. and the
            National Aeronautics and Space Administration dated July 16,
            1998.
10.16**     Service Agreement between IXC Carrier, Inc. and CRL Network
            Services dated April 22, 1996.
10.17**     Amendment #1 to Service Agreement between IXC Carrier, Inc.
            and CRL Network Services dated April 16, 1997.
10.18**     Terms and Conditions Governing the Provision of Network
            Connectivity Products and Services by Sprint dated January
            6, 1998.
10.19**     Private Line Services Agreement between Qwest Communications
            Corporation and CRL Network Services dated October 10, 1997.
10.20       Reimbursable Space Act Agreement between the National
            Aeronautics and Space Administration Ames Research Center
            and CRL Network Services, Inc. dated December 3, 1996 and
            executed March 7, 1997.(1)
10.21       Office Lease Agreement between Maria Chen, as Lessor and the
            Registrant dated December 5, 1995.(1)
10.22       Amendment to lease by and between Maria Chen and the
            Registrant dated December 1, 1998.(1)
10.23       The 120 Montgomery Street Office Lease dated February 4,
            1994 between the Equitable Montgomery Company and Orrell &
            Company, Inc.(1)
10.24       Sublease between Orrell & Company, Inc., 120 Montgomery
            Associates, LLC and the Registrant dated February 20,
            1998.(1)
10.25       Office Lease between WHLNF Real Estate Limited Partnership
            and the Registrant dated August 28, 1998.(1)
10.26       Office Lease between One Wilshire Arcade Imperial, Ltd. by
            Paramount Group, Inc. and the Registrant dated March 8,
            1998.(1)
10.27       Deed of Lease between Gosnell Properties, Inc. and the
            Registrant dated September 20, 1996.(1)
10.28       Standard Industrial Lease -- Multi Tenant between Robert A.
            Bell and Bob Ross, d/b/a/ Integral Network Corporation dated
            March 30, 1998.(1)
10.29       Qualified Retirement Plan and Trust Defined Contribution
            Basic Plan Document.(1)
10.30       Defined Contribution Plan and Trust Adoption Agreement.(1)
10.31       Agreement and Plan of Reorganization among the Registrant,
            Integral Networking Corporation, RMS Sub Inc. and the
            shareholders of Integral Networking Corporation dated
            December 21, 1998.(1)
10.32       U.S. Simply Business Premium Line Agreement between Integral
            Networking Corporation and U.S. Bank dated September 2,
            1997.(1)
</TABLE>
    
 
                                      II-3
<PAGE>   97
 
   
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                             DESCRIPTION
- -------                             -----------
<S>         <C>
10.33       Airplane Leasing Agreement dated February 15, 1999, between
            the Registrant and FBN Holding Corp.(1)
21.1        Subsidiaries of the Registrant.(1)
23.1        Consent of Gibson, Dunn & Crutcher LLP (included in Exhibit
            5.1).
23.2        Consent of Deloitte & Touche LLP.
23.3        Consent of Jack M. Fields, Jr.(1)
23.4        Consent of Steven T. Stenberg.(1)
23.5        Consent of John A. Blair.(1)
23.6        Consent of Thor Geir Ramleth.(1)
23.7        Consent of Stephen C. Mott
24.1        Power of Attorney.(1)
24.2        Power of Attorney for Robert B. Murphy, Jr.(3)
27.1        Financial Data Schedule.(1)
</TABLE>
    
 
- -------------------------
   
 ** Certain information in this exhibit was omitted and filed separately with
    the Securities and Exchange Commission pursuant to a confidential treatment
    request as to omitted portions of the exhibit.
    
 
(1) Previously filed as an exhibit to the Registrant's Registration on Form S-1
    (File No. 333-34793) filed with the Commission on March 22, 1999.
 
(2) Previously filed as an exhibit to Amendment No. 1 to the Registration
    Statement filed with the Commission on April 2, 1999.
 
(3) Previously filed as an exhibit to Amendment No. 2 to the Registration
    Statement filed with the Commission on April 28, 1999.
 
ITEM 17. UNDERTAKINGS
 
The Registrant hereby undertakes to the underwriters at the closing specified in
the underwriting agreement to provide certificates in such denominations and
registered in such names as required by the underwriters to permit prompt
delivery to each purchaser.
 
   
Insofar as indemnification for liabilities arising under the Securities Act of
1933, as amended (the "Securities Act") may be permitted to directors, officers
and controlling persons of the Registrant pursuant to the Delaware General
Corporation Law, the Registrant's Certificate of Incorporation, the Registrant's
Bylaws, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Securities Act, and is, therefore, unenforceable. In the
event that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
    
 
The undersigned Registrant hereby undertakes that:
 
     (i) For purposes of determining any liability under the Securities Act, the
     information omitted from the form of prospectus filed as part of this
     Registration Statement in reliance upon Rule 430A and contained in a form
     of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or
     497(h) under the Act is part of this Registration Statement as of the time
     it was declared effective.
 
     (ii) For the purpose of determining any liability under the Securities Act
     of 1933, each post-effective amendment that contains a form of prospectus
     shall be deemed to be a new registration statement for the securities
     offered therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.
 
                                      II-4
<PAGE>   98
 
                                   SIGNATURES
 
   
Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant has duly caused this Amendment No. 4 to the Registration Statement to
be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of San Francisco, State of California, on the 18th day of May 1999.
    
 
                                          CRL Network Services, Inc.
 
                                          By:      /s/ JAMES G. COUCH
                                            ------------------------------------
                                                       James G. Couch
                                               President and Chief Executive
                                                           Officer
 
   
Pursuant to the requirements of the Securities Act of 1933, as amended, this
Amendment No. 4 to the Registration Statement on Form S-1 has been signed below
by the following persons in the capacities and on the dates indicated:
    
 
   
<TABLE>
<CAPTION>
                SIGNATURE                                     TITLE                         DATE
                ---------                                     -----                         ----
<C>                                         <S>                                         <C>
 
            /s/ JAMES G. COUCH              President, Chief Executive Officer,         May 18, 1999
- ------------------------------------------  Chairman of the Board and Secretary
              James G. Couch                (Principal Executive Officer)
 
                    *                       Executive Vice President and Chief          May 18, 1999
- ------------------------------------------  Financial Officer (Principal Financial
          Robert B. Murphy, Jr.             Officer)
 
                    *                       Vice President of Finance (Principal        May 18, 1999
- ------------------------------------------  Accounting Officer)
             Robyn L. Raschke
 
                    *                       Director                                    May 18, 1999
- ------------------------------------------
            Steven T. Stenberg
</TABLE>
    
 
* By:  /s/ JAMES G. COUCH
     -------------------------
          James G. Couch
         Attorney-in-fact
 
                                      II-5
<PAGE>   99
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                             DESCRIPTION
- -------                             -----------
<S>         <C>
 1.1        Form of Underwriting Agreement.(1)
 2.1        Certificate of Merger between the Registrant and CRL Network
            Services, Inc., a California corporation ("CRL
            California").(3)
 3.1        Articles of Incorporation of CRL California.(1)
 3.2        Certificate of Incorporation of the Registrant.(1)
 3.3        Bylaws of CRL California.(1)
 3.4        Bylaws of the Registrant.(3)
 4.1        Specimen form of Registrant's Common Stock Certificate.
 5.1        Opinion of Gibson, Dunn & Crutcher LLP.
10.1        Employment Agreement between the Registrant and James G.
            Couch dated as of March 15, 1999.(1)
10.2        Employment Agreement between the Registrant and Robert A.
            Ross dated December 21, 1998.(1)
10.3        1997 Equity Incentive Plan.(1)
10.4        1999 Stock Incentive Plan, as amended.
10.5        Equipment Lease between Saddleback Financial Corporation and
            CRL Network Services, Inc. executed on June 12, 1997.(1)
10.6        Addendum to Lease between Saddleback Financial Corporation
            and CRL Network Services, Inc. executed June 12, 1997.(1)
10.7        Mandatory Purchase Option Letter between Saddleback
            Financial Corporation and CRL Network Services, Inc.
            executed June 12, 1997.(1)
10.8        Wells Fargo Bank $500,000 Equipment Line of Credit made
            available to CRL Network Services dated September 25,
            1997.(1)
10.9        Wells Fargo Bank $692,000 Equipment Line of Credit made
            available to CRL Network Services dated March 30, 1998.(1)
10.10       Wells Fargo Bank $650,000 Equipment Line of Credit made
            available to CRL Network Services dated September 29,
            1998.(1)
10.11       Wells Fargo Bank $200,000 PrimeLine of Credit made available
            to CRL Network Services dated September 28, 1998.(1)
10.12**     Agreement between Pacific Bell and CRL Network Services
            dated as of September 22, 1998.
10.13**     Master Services Agreement between GST-Telecom California
            Inc. and CRL Network Services dated August 31, 1998.
10.14       Domestic (U.S.) Direct Peering Agreement between MCI
            Telecommunications Corporation and CRL Network Services
            dated August 1, 1998.(2)
10.15**     Agreement between CRL Network Services, Inc. and the
            National Aeronautics and Space Administration dated July 16,
            1998.
10.16**     Service Agreement between IXC Carrier, Inc. and CRL Network
            Services dated April 22, 1996.
10.17**     Amendment #1 to Service Agreement between IXC Carrier, Inc.
            and CRL Network Services dated April 16, 1997.
10.18**     Terms and Conditions Governing the Provision of Network
            Connectivity Products and Services by Sprint dated January
            6, 1998.
10.19**     Private Line Services Agreement between Qwest Communications
            Corporation and CRL Network Services dated October 10, 1997.
</TABLE>
    
<PAGE>   100
 
   
<TABLE>
<CAPTION>
EXHIBIT
 NUMBER                             DESCRIPTION
- -------                             -----------
<S>         <C>
10.20       Reimbursable Space Act Agreement between the National
            Aeronautics and Space Administration Ames Research Center
            and CRL Network Services, Inc. dated December 3, 1996 and
            executed March 7, 1997.(1)
10.21       Office Lease Agreement between Maria Chen, as Lessor and the
            Registrant dated December 5, 1995.(1)
10.22       Amendment to lease by and between Maria Chen and the
            Registrant dated December 1, 1998.(1)
10.23       The 120 Montgomery Street Office Lease dated February 4,
            1994 between the Equitable Montgomery Company and Orrell &
            Company, Inc.(1)
10.24       Sublease between Orrell & Company, Inc., 120 Montgomery
            Associates, LLC and the Registrant dated February 20,
            1998.(1)
10.25       Office Lease between WHLNF Real Estate Limited Partnership
            and the Registrant dated August 28, 1998.(1)
10.26       Office Lease between One Wilshire Arcade Imperial, Ltd. by
            Paramount Group, Inc. and the Registrant dated March 8,
            1998.(1)
10.27       Deed of Lease between Gosnell Properties, Inc. and the
            Registrant dated September 20, 1996.(1)
10.28       Standard Industrial Lease -- Multi Tenant between Robert A.
            Bell and Bob Ross, d/b/a/ Integral Network Corporation dated
            March 30, 1998.(1)
10.29       Qualified Retirement Plan and Trust Defined Contribution
            Basic Plan Document.(1)
10.30       Defined Contribution Plan and Trust Adoption Agreement.(1)
10.31       Agreement and Plan of Reorganization among the Registrant,
            Integral Networking Corporation, RMS Sub Inc. and the
            shareholders of Integral Networking Corporation dated
            December 21, 1998.(1)
10.32       U.S. Simply Business Premium Line Agreement between Integral
            Networking Corporation and U.S. Bank dated September 2,
            1997.(1)
10.33       Airplane Leasing Agreement dated February 15, 1999, between
            the Registrant and FBN Holding Corp.(1)
21.1        Subsidiaries of the Registrant.(1)
23.1        Consent of Gibson, Dunn & Crutcher LLP (included in Exhibit
            5.1).
23.2        Consent of Deloitte & Touche LLP.
23.3        Consent of Jack M. Fields, Jr.(1)
23.4        Consent of Steven T. Stenberg.(1)
23.5        Consent of John A. Blair.(1)
23.6        Consent of Thor Geir Ramleth.(1)
23.7        Consent of Stephen C. Mott
24.1        Power of Attorney.(1)
24.2        Power of Attorney for Robert B. Murphy, Jr.(3)
27.1        Financial Data Schedule.(1)
</TABLE>
    
 
- -------------------------
 
   
 ** Certain information in this exhibit was omitted and filed separately with
    the Securities and Exchange Commission pursuant to a confidential treatment
    request as to the omitted portions of the exhibit.
    
 
   
(1) Previously filed as an exhibit to the Registrant's Registration Statement on
    Form S-1 (File No. 333-34793) (the "Registration Statement") filed with the
    Commission on March 22, 1999.
    
 
(2) Previously filed as an exhibit to Amendment No. 1 to the Registration
    Statement filed with the Commission on April 2, 1999.
 
(3) Previously filed as an exhibit to Amendment No. 2 to the Registration
    Statement filed with the Commission on April 28, 1999.

<PAGE>   1
                                                                     EXHIBIT 4.1
FRONT


COMMON
STOCK


COMMON
STOCK

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

CRL

THIS CERTIFICATE IS TRANSFERABLE IN
RIDGEFIELD PARK, NJ OR NEW YORK, NY

SEE REVERSE FOR CERTAIN DEFINITIONS

CUSIP 12626Y 10 4

THIS CERTIFIES THAT ________________ IS THE RECORD HOLDER OF

FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, $0.0001 PAR VALUE PER
SHARE, OF CRL NETWORK SERVICES, INC. 
transferable on the books of the Corporation by the holder hereof in person or
by duly authorized attorney upon surrender of this Certificate properly
endorsed. This Certificate is not valid until countersigned by the Transfer
Agent and registered by the Registrar.

WITNESS the facsimile seal of the Corporation and the facsimile signatures of
its duly authorized officers. 
Dated:

SECRETARY     PRESIDENT AND CHIEF EXECUTIVE OFFICER

COUNTERSIGNED and registered:
CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
TRANSFER AGENT and registrar

BY


AUTHORIZED SIGNATURE


<PAGE>   2

BACK

CRL NETWORK SERVICES, INC.

A statement of the powers, designations, preferences and relative,
participating, optional or other special rights of each class of stock or series
thereof and the qualifications, limitations or restrictions of such preferences
and/or rights as established, from time to time, by the Certificate of
Incorporation of the Corporation and by any certificate of determination, the
number of shares constituting each class and series, and the designations
thereof, may be obtained by the holder hereof upon request and without charge
from the Secretary of the Corporation at the principal office of the
Corporation.

The following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

        TEN COM       N      as tenants in common
        TEN ENT       N      as tenants by the entireties
        JT TEN        N      as joint tenants with right of
                             survivorship and not as tenants
                             in common
        COM PROP      N      as community property




               UNIF GIFT MIN ACT    N       ............ Custodian.............
                                  (Cust)                            (Minor)
                          under Uniform Gifts to Minors
                             Act...............................................
                                                        (State)
               UNIF TRF MIN ACT     N   ............ Custodian (until age......)
                                (Cust)
                                    ................... under Uniform Transfers
                                       (Minor)
                             to Minors Act ....................................
                                                        (State)

Additional abbreviations may also be used though not in the above list.

    FOR VALUE RECEIVED,                   hereby sell, assign and transfer unto

        PLEASE INSERT SOCIAL SECURITY OR OTHER
        IDENTIFYING NUMBER OF ASSIGNEE



(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)



Shares
of the common stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

Attorney
to transfer the said stock on the books of the within named Corporation with
full power of substitution in the premises. 
Dated


X
X
NOTICE:



<PAGE>   3

THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN
UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR
ENLARGEMENT OR ANY CHANGE WHATEVER.

Signature(s) Guaranteed



By
THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS,
STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN
AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE
17Ad-15.

<PAGE>   1
                                                                     EXHIBIT 5.1




                    [Gibson, Dunn & Crutcher LLP Letterhead]

                                  May 18, 1999







(415) 393-8200                                                     C 18949-00002



CRL Network Services, Inc.
One Kearny Street, Suite 1450
San Francisco, CA  94108


        Re:    CRL Network Services, Inc. - Form S-1
               Registration Statement (No. 333-74793)


Ladies and Gentlemen:

        We are acting as special counsel for CRL Network Services, Inc., a
Delaware corporation (the "Company"), in connection with the registration of up
to an aggregate of 6,727,500 shares of the Company's Common Stock, $.0001 par
value per share (the "Shares"), on the Registration Statement on Form S-1 (File
No. 333-74793), including amendments and exhibits thereto (the "Registration
Statement"), filed by the Company with the Securities and Exchange Commission
(the "Commission") under the Securities Act of 1933, as amended (the "Act"). Of
the 6,727,500 Shares, 877,500 Shares are subject to an option granted to the
Underwriters (as defined below) to cover overallotments. The Selling Stockholder
(as defined in the Registration Statement) proposes to sell 850,000 shares of
the Shares (1,727,500 of the Shares if all of the over-allotment option shares
are sold by the Selling Stockholder). We understand that the Company and Mr.
James G. Couch propose to sell the Shares to a group of underwriters (the
"Underwriters") represented by CIBC World Markets Corp. and Lehman Brothers Inc.
for offering to the public.

        On the basis of such investigation as we have deemed necessary, we are
of the opinion that the Shares (i) have been duly authorized and (ii) when
issued and sold in the manner described in the Registration Statement and in
accordance with an underwriting agreement to be




<PAGE>   2

CRL Network Services, Inc.
May 18, 1999
Page 2




entered into among the Company, the Selling Stockholder and the Underwriters
substantially in the form filed as an exhibit to the Registration Statement,
will be legally issued, fully paid and nonassessable.

        We are admitted to practice in California. We are not admitted to
practice in Delaware. However, we are generally familiar with Delaware General
Corporation Law and have made such review thereof as we consider necessary for
the purpose of rendering this opinion. Subject to the foregoing, this opinion is
limited to the Delaware General Corporation Law and the present federal laws of
the United States.

        We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to this firm under the heading
"Legal Matters" contained in the prospectus that forms a part of the
Registration Statement. In giving this consent, we do not admit that we are
within the category of person whose consent is required under Section 7 of the
Act or the General Rules and Regulations of the Commission. This opinion is
rendered solely for your benefit and may not be otherwise copied, quoted or
relied upon without prior written consent.



                                       Very truly yours,



                                       /s/ Gibson, Dunn & Crutcher LLP
                                       GIBSON, DUNN & CRUTCHER LLP



KRL/LAF/PLW



<PAGE>   1

                                                                   EXHIBIT 10.4



                            1999 STOCK INCENTIVE PLAN

                                       OF

                           CRL NETWORK SERVICES, INC.

                                 March 18, 1999
    
                                 as amended on
                                  May 18, 1999
                 (All share amounts reflect the reincorporation
                          of the Company in Delaware)
    



SECTION 1.  PURPOSE OF PLAN

        The purpose of this 1999 Stock Incentive Plan (this "Plan") of CRL
Network Services, Inc. (the "Company"), is to enable the Company to attract,
retain and motivate its employees and consultants by providing for or increasing
the proprietary interests of such employees and consultants in the Company, and
to enable the Company to attract, retain and motivate its non-employee directors
and further align their interest with those of the stockholders of the Company
by providing for or increasing the proprietary interest of such directors in the
Company.

SECTION 2.  PERSONS ELIGIBLE UNDER PLAN

               Any person, including any director of the Company, who is an
officer or employee of or consultant to the Company or any of its subsidiaries
(an "Employee") and any director of the Company who is not an Employee (a
"Nonemployee Director") shall be eligible to be considered for the grant of
Awards (as defined herein); provided that only persons who are employees of the
Company shall be eligible to be considered for the grant of "Incentive Stock
Options" (as defined herein).

SECTION 3.  AWARDS

   
               (a) The Board of Directors or the Committee (as hereinafter
defined), on behalf of the Company, is authorized under this Plan to enter into
any type of arrangement with an Employee or a Nonemployee Director that is not
inconsistent with the provisions of this Plan and that, by its terms, involves
or might involve the issuance of (i) shares of Common Stock, par value $.0001 
per share, of the Company (collectively "Common Shares"), or (ii) a right or
interest with an exercise or conversion privilege at a price related to the
Common Shares or with a value derived from the value of the Common Shares, which
right or interest may, but need not, constitute a Derivative Security (as such
term is defined in Rule 16a-1 promulgated under the Securities Exchange Act of
1934, as amended (the "Exchange Act"), as such rule may be amended from time to
time). The entering into of any such arrangement is referred to herein as the
"grant" of an "Award."
    

               (b) Common Shares may be issued pursuant to an Award for any
lawful consideration as determined by the Committee, including, without
limitation, services rendered by the recipient of such Award.



<PAGE>   2

               (c) Awards are not restricted to any specified form or structure
and may include, without limitation, sales or bonuses of stock, restricted
stock, stock options, reload stock options, stock purchase warrants, other
rights to acquire stock, securities convertible into or redeemable for stock,
stock appreciation rights, limited stock appreciation rights, phantom stock,
dividend equivalents, performance units or performance shares, and an Award may
consist of one such security or benefit or two or more of them in tandem or in
the alternative.

               (d) Subject to the provisions of this Plan, the Committee, in its
sole and absolute discretion, shall determine all of the terms and conditions of
each Award granted under this Plan, which terms and conditions may include,
among other things:

                      (i) a provision permitting the recipient of such Award,
        including any recipient who is a director or officer of the Company, to
        pay the purchase price of the Common Shares or other property issuable
        pursuant to such Award, and/or such recipient's tax withholding
        obligation with respect to such issuance, in whole or in part, by any
        one or more of the following:

                             (A) the delivery of cash or a promissory note, the
               terms and conditions of which shall be determined by the
               Committee,

                             (B) the delivery of previously owned shares of
               capital stock of the Company (including "pyramiding") or other
               property deemed acceptable by the Committee, provided that the
               Company is not then prohibited from purchasing or acquiring
               shares of its capital stock or such other property,

                             (C) a reduction in the amount of Common Shares or
               other property otherwise issuable pursuant to such Award, or

                             (D) any other lawful consideration deemed
               acceptable by the Committee.

                      (ii) a provision specifying the exercise or settlement
        price for any option, stock appreciation right or similar Award, or
        specifying the method by which such price is determined; provided, that,
        if the Company is subject to the reporting requirements of the Exchange
        Act, the exercise or settlement price of any option, stock appreciation
        right or similar Award that is intended to qualify as performance based
        compensation ("Performance Based Compensation") for purposes of Section
        162(m) of the Internal Revenue Code of 1986, as amended (the "Code"),
        shall be not less than the fair market value of a Common Share on the
        date such Award is granted;

                      (iii) a provision relating to the exercisability and/or
        vesting of Awards, lapse and non-lapse restrictions upon the Common
        Shares obtained or obtainable under Awards or under the Plan and the
        termination, expiration and/or forfeiture of Awards;




                                       2
<PAGE>   3

                      (iv) a provision conditioning or accelerating the receipt
        of benefits pursuant to such Award, either automatically or in the
        discretion of the Committee, upon the occurrence of specified events,
        including, without limitation, a change of control of the Company (as
        defined by the Committee), an acquisition of a specified percentage of
        the voting power of the Company, the dissolution or liquidation of the
        Company, a sale of substantially all of the property and assets of the
        Company or an event of the type described in Section 8 hereof; and/or

                      (v) any provisions required in order for such Award to
        qualify as an incentive stock option (an "Incentive Stock Option") under
        Section 422 of the Code, provided that the recipient of such Award is
        eligible under the Code to receive an Incentive Stock Option, and, if
        the Company is subject to the reporting requirements of the Exchange
        Act, any provisions required in order for such Award to qualify (A) as
        Performance Based Compensation and/or (B) for an exemption from Section
        16 of the Exchange Act.

   
               (e) Notwithstanding any other provision of this Plan, no
Nonemployee Director shall be granted Awards in excess of 50,000 shares of
Common Stock during any one calendar year. The limitation set forth in this
Section 3(e) shall be subject to adjustment as provided in Section 8 hereof, but
only to the extent such adjustment would not affect the status of compensation
attributable to Awards hereunder as Performance-Based Compensation.
    

SECTION 4.  GRANTS TO NON-EMPLOYEE DIRECTORS

               (a) Each non-employee director of the Company shall receive an
option to purchase a minimum of a number of shares of Common Stock upon such
director's appointment to the Board of Directors as is determined by resolution
of the Board of Directors. The terms and conditions of such award shall be
determined by the Committee.

   
               (b) On the date of the Company's next annual meeting of
stockholders, and each subsequent year thereafter, each non-employee director
who has been re-elected as director shall receive an option to purchase
5,000 shares of Common Stock. The terms and conditions of such award shall
be determined by the Committee.
    

   
               (c) In its discretion, the Committee may increase the number of
shares purchasable upon exercise of such option for any director individually,
provided that the total number of shares purchasable upon exercise of all
options granted to any non-employee director in any year shall not be greater
than 50,000 shares.
    

SECTION 5.  STOCK SUBJECT TO PLAN

   
               (a) The aggregate number of Common Shares that may be issued
pursuant to all Incentive Stock Options granted under this Plan shall not exceed
2,000,000, subject to adjustment as provided in Section 8 hereof.
    






                                       3
<PAGE>   4


   
               (b) The aggregate number of Common Shares issued and issuable
pursuant to all Awards (including Incentive Stock Options) granted under this
Plan shall not exceed 2,000,000, subject to adjustment as provided in Section
8 hereof.
    

               (c) For purposes of Section 5(b) hereof, the aggregate number of
Common Shares issued and issuable pursuant to all Awards granted under this Plan
shall at any time be deemed to be equal to the sum of the following:

                      (i) the number of Common Shares that were issued prior to
        such time pursuant to Awards granted under this Plan, other than Common
        Shares that were subsequently reacquired by the Company pursuant to the
        terms and conditions of such Awards and with respect to which the holder
        thereof received no benefits of ownership such as dividends; plus

                      (ii) the number of Common Shares that were otherwise
        issuable prior to such time pursuant to Awards granted under this Plan,
        but that were withheld by the Company as payment of the purchase price
        of the Common Shares issued pursuant to such Awards or as payment of the
        recipient's tax withholding obligation with respect to such issuance;
        plus

                      (iii) the maximum number of Common Shares issuable at or
        after such time pursuant to Awards granted under this Plan prior to such
        time.

               (d) The "Fair Market Value" of a Common Share or other security
on any date (the "Determination Date") shall be determined as follows:

                      (i) If the Common Shares are not publicly traded on the
        business day immediately preceding the Determination Date, then Fair
        Market Value shall equal the price at which one could reasonably expect
        such Common Shares to be sold in an arm's length transaction, for cash,
        other than on an installment basis, to a person not employed by,
        controlled by, in control of or under common control with the issuer of
        such Common Shares. Such Fair Market Value shall be that which has
        currently or most recently been determined for this purpose by the Board
        or at the discretion of the Board, by an independent appraiser or
        appraisers selected by the Board, in either case giving due
        consideration to recent transactions involving shares of such Common
        Shares, if any, the Company's net worth, prospective earning power and
        dividend-paying capacity, the goodwill of the Company's business, the
        issuer's industry position and its management, that Company's economic
        outlook, the values of securities of issuers whose stock is publicly
        traded and which are engaged in similar businesses, the effect of
        transfer restrictions to which such Common Shares may be subject under
        law and under the applicable terms of any contract governing such stock,
        the absence of a public market for such Common Shares and such other
        matters as the Board or its appraiser or appraisers deem pertinent. The
        determination by the Board or its appraiser or appraisers of the Fair
        Market Value shall, if not unreasonable, be conclusive and binding
        notwithstanding the possibility that other persons might make a
        different, and also reasonable, determination. If the Fair Market Value
        to be used was thus fixed



                                       4
<PAGE>   5



        more than sixteen months prior to the day as of which Fair Market Value
        is being determined, it shall in any event be no less than the book
        value of the Common Shares being valued at the end of the most recent
        period for which financial statements of the issuer are available; or

                      (ii) If the Common Shares are publicly traded on the
        business day immediately preceding the Determination Date, then Fair
        Market Value shall equal the closing price per Common Share or unit of
        such other security on the business day immediately preceding the
        Determination Date, as reported in The Wall Street Journal, Western
        Edition (or, if such day is not a trading day in the principal
        securities market or markets for such Common Shares, on the nearest
        preceding trading day), as reported with respect to the market (or the
        composite of markets, if more than one) in which shares of such Common
        Shares are then traded, or, if no such closing prices are reported, on
        the basis of the mean between the high bid and low asked prices that day
        on the principal market or quotation system on which Common Shares are
        then quoted, or, if not so quoted, as furnished by a professional
        securities dealer making a market in the Common Shares selected by the
        Board or the Committee.

SECTION 6.  DURATION OF PLAN

               Options shall not be granted under this Plan after March 17,
2009. Although Common Shares may be issued on or after March 17, 2009 pursuant
to Options granted prior to such date, no Common Shares shall be issued under
this Plan after March 16, 2019.

SECTION 7.  ADMINISTRATION OF PLAN

               (a) This Plan shall be administered by a committee (the
"Committee") of the Board of Directors of the Company (the "Board") consisting
of two or more directors, each of whom is a "non-employee director" (as such
term is defined in Rule 16b-3 promulgated under the Exchange Act, as such Rule
may be amended from time to time); provided, however, that in the event the
Committee is not comprised of two or more "non-employee directors," then (i) the
Committee shall only be authorized and empowered to recommend to the Board all
things necessary or desirable in connection with the administration of this
Plan, including, without limitation, the things listed in Section 7, (ii) all
recommendations of the Committee relating to this Plan shall be subject to final
approval by the Board and (iii) all references herein to the Committee shall be
deemed to refer to the Board; provided further, that unless otherwise determined
by the Board, with respect to any Award that is intended to qualify as
Performance-Based Compensation, the Plan shall be administered by a committee
consisting of two or more directors, each of whom is an "outside director" (as
such term is defined under Section 162(m) of the Code).

               (b) Subject to the provisions of this Plan, the Committee shall
be authorized and empowered to do all things necessary or desirable in
connection with the administration of this Plan, including, without limitation,
the following:




                                       5
<PAGE>   6

                      (i) adopt, amend and rescind rules and regulations
        relating to this Plan;

                      (ii) determine which persons are Employees and to which of
        such Employees, if any, Awards shall be granted hereunder;

                      (iii) grant Awards to Employees and Nonemployee Directors
        (provided that Nonemployee Directors shall not be eligible to be
        considered for the grant of Incentive Stock Options) and determine the
        terms and conditions thereof, including (A) the number of Common Shares
        issuable pursuant thereto and (B) the exercise price for any Awards;

                      (iv) determine whether, and the extent to which,
        adjustments are required pursuant to Section 8 hereof; and

                      (v) interpret and construe this Plan and the terms and
        conditions of all Awards granted hereunder.

SECTION 8.  ADJUSTMENTS

               If the outstanding securities of the class then subject to this
Plan are increased, decreased or exchanged for or converted into cash, property
or a different number or kind of securities, or if cash, property or securities
are distributed in respect of such outstanding securities, in either case as a
result of a reorganization, merger, consolidation, recapitalization,
restructuring, reclassification, dividend (other than a regular, quarterly cash
dividend) or other distribution, stock split, reverse stock split or the like,
or if substantially all of the property and assets of the Company are sold,
then, unless the terms of such transaction shall provide otherwise, the
Committee may make appropriate and proportionate adjustments in (a) the number
and type of shares or other securities or cash or other property that may be
acquired pursuant to Incentive Stock Options and other Awards theretofore
granted under this Plan, (b) the maximum number and type of shares or other
securities that may be issued pursuant to Incentive Stock Options and other
Awards thereafter granted under this Plan, and (c) the maximum number of Common
Shares for which options may be granted during any one calendar year; provided,
however, that no adjustment shall be made under this Section 8 to the number of
Common Shares that may be acquired pursuant to outstanding Incentive Stock
Options or the maximum number of Common Shares with respect to which Incentive
Stock Options may be granted under this Plan to the extent such adjustment would
result in such options being treated as other than Incentive Stock Options;
provided further that no such adjustment shall be made to the extent the
Committee determines that such adjustment would result in the disallowance of a
federal income tax deduction for compensation attributable to Options hereunder
by causing such compensation to be other than Performance-Based Compensation.




                                       6
<PAGE>   7


SECTION 9.  AMENDMENT AND TERMINATION OF PLAN

               The Board may amend or terminate this Plan at any time and in any
manner; provided, however, that no such amendment or termination shall deprive
the recipient of any Award theretofore granted under this Plan, without the
consent of such recipient, of any of his or her rights thereunder or with
respect thereto; provided, further, that the Board shall not, without the
approval of the shareholders of the Company, amend the Plan in any manner that
requires such shareholder approval pursuant to the Code or any applicable
securities laws.

SECTION 10.  EFFECTIVE DATE OF PLAN

               The Stock Incentive Plan shall be effective as of March 18,
1999, the date upon which it was approved by the Board; provided, however, that
no Awards may be granted nor may Common Shares be issued under this Stock
Incentive Plan until it has been approved, directly or indirectly, by the
affirmative votes of the holders of a majority of the securities of the Company
present, or represented, and entitled to vote at a meeting duly held in
accordance with the laws of the State of Delaware.

SECTION 11.  COMPLIANCE WITH OTHER LAWS AND REGULATIONS

        This Plan, the grant and exercise of Awards thereunder, and the
obligation of the Company to sell and deliver Common Shares under such Awards,
shall be subject to all applicable federal and state laws, rules and regulations
and to such approvals by any governmental or regulatory agency as may be
required. The Company shall not be required to issue or deliver any certificates
for shares of Common Stock prior to the completion of any registration or
qualification of such shares under any federal or state law or issuance of any
ruling or regulation of any government body which the Company shall, in its sole
discretion, determine to be necessary or advisable.

SECTION 12.  NO RIGHT TO COMPANY EMPLOYMENT

        Nothing in this Plan or as a result of any Award granted pursuant to
this Plan shall confer on any individual any right to continue in the employ of
the Company or any of its subsidiaries or affiliates or interfere in any way
with the right of the Company (or its subsidiaries or affiliates, as applicable)
to terminate an individual's employment at any time, with or without cause. The
agreement evidencing an Award may contain such provisions as the Committee may
approve with respect to the effect of approved leaves of absence.

SECTION 13.  LIABILITY OF COMPANY

        The Company and any affiliate which is in existence or hereafter comes
into existence shall not be liable to an Employee, Nonemployee Director or other
persons as to:

               (a) The Non-Issuance of Common Shares. The non-issuance or sale
of Common Shares as to which the Company has been unable to obtain from any
regulatory body having jurisdiction the authority deemed by the Company's
counsel to be necessary to the lawful issuance and sale of any Shares hereunder;
and




                                       7
<PAGE>   8


               (b) Tax Consequences. Any tax consequence expected, but not
realized, by any Employee or Nonemployee Director or other person due to the
issuance, exercise, settlement, cancellation or other transaction involving any
Award granted hereunder.

SECTION 14.  GOVERNING LAW

        This Plan and any Awards and agreements hereunder shall be interpreted
and construed in accordance with the laws of the State of Delaware and
applicable federal law.












                                       8

<PAGE>   1
                                                                   EXHIBIT 10.12




                                    AGREEMENT




                                     BETWEEN

                                  PACIFIC BELL

                                       AND

                              CRL NETWORK SERVICES








Certain portions of this document in Attachment 8 and Attachment 9 have been
omitted and filed separately with the Securities and Exchange Commission based
on a request for confidential treatment with respect to the omitted portions.
<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
Section                                                                          Page
- -------                                                                          ----
<S>                                                                              <C>
PREFACE                                                                            1
AGREEMENT                                                                          1
RECITALS                                                                           1
DEFINITIONS and ACRONYMS                                                           2
GENERAL TERMS AND CONDITIONS                                                       2
           1. Reservation of Rights to Appeal or Petition for Reconsideration      2
           2. Provision of Local Service and Unbundled Network Elements            2
           3. Term of Agreement; Transitional Support                              4
           4. Good Faith Performance                                               5
           5. Option to Obtain Local Services or Network Elements Under Other
               Agreements                                                          5
           6. Responsibility of Each Party                                         5
           7. Governmental Compliance                                              5
           8. Responsibility For Environmental Contamination                       6
           9. Regulatory Matters                                                   7
           10. Liability and Indemnity                                             8
           11. Audits and Inspections                                              10
           12. Service Performance Measures and Related Remedies                   12
           13. Uncollectible or Unbillable Revenues                                13
           14. Customer Credit History                                             13
           15. Force Majeure                                                       14
           16. Certain State and Local Taxes                                       15
           17. Alternative Dispute Resolution                                      15
           18. Notices                                                             16
           19. Confidentiality and Proprietary Information                         17
           20. Branding                                                            19
           21. Miscellaneous                                                       19
</TABLE>

<PAGE>   3

ATTACHMENTS
  Attachment 1      Definitions
  Attachment 2      Acronyms
  Attachment 3      Alternative Dispute Resolution
  Attachment 4      Directory Listing Requirements
  Attachment 5      Local Services Resale
  Attachment 6      Specifications, Service Descriptions and Implementation 
                    Schedule for Unbundled Network Elements
  Attachment 7      Network Element Combinations
  Attachment 8      Pricing
  Attachment 9      Access to Verigate and LEX Operations Support Systems
  Attachment 10     Ancillary Functions
  Attachment 11     Provisioning and Ordering
  Attachment 12     Maintenance
  Attachment 13     Connectivity Billing and Recording
  Attachment 14     Provision of Customer Usage Data
  Attachment 15     Local Number Portability and Number Assignment
  Attachment 16     Security
  Attachment 17     Service Performance Measures and Related Remedies
  Attachment 18     Interconnection

<PAGE>   4

                                     PREFACE

                                    AGREEMENT

           This Agreement, which shall become effective as of the _____ day of
_________, 1998 ("Effective Date"), is entered into by and between CRL Network
Services ("CLEC"), a California corporation, having an office at One Kearny
Street, Suite 1450, San Francisco, CA and PACIFIC BELL ("PACIFIC"), a California
corporation, having an office at 2150 Webster St., Oakland, California.

                                    RECITALS

           WHEREAS, The Telecommunications Act of 1996 was signed into law on
February 8, 1996 (the "Act") and substantially amends the Communications Act of
1934; and

           WHEREAS, the Act places certain duties and obligations upon, and
grants certain rights to, Telecommunications Carriers; and

           WHEREAS, PACIFIC is an Incumbent Local Exchange Carrier; and

           WHEREAS, PACIFIC is willing to sell unbundled Network Elements and
Ancillary Functions and additional features, as well as services for resale, on
the terms and subject to the conditions of this Agreement; and

           WHEREAS, CLEC is a Telecommunications Carrier and has requested that
PACIFIC negotiate an Agreement with CLEC for the provision of interconnection,
unbundled Network Elements (including Ancillary Functions and additional
features), and services pursuant to the Act and in conformance with PACIFIC's
duties under the Act; and

           WHEREAS, the Parties have arrived at this Agreement through voluntary
negotiations and arbitration undertaken pursuant to the Act,

           NOW, THEREFORE, in consideration of the premises and the mutual
covenants of this Agreement, CLEC and PACIFIC hereby agree as follows:

                            DEFINITIONS AND ACRONYMS

           For purposes of this Agreement, certain terms have been defined in
Attachment 1 and elsewhere in this Agreement to encompass meanings that may
differ from, or be in addition to, the normal connotation of the defined word.
Unless the context clearly indicates otherwise, any term defined or used in the
singular shall include the plural. The words "shall" and "will" are used
interchangeably throughout this Agreement and the use of either connotes a
mandatory requirement. The use of one or the other shall not mean a different
degree of right or obligation for either Party. A defined word intended to
convey its special meaning is capitalized when used. Other terms that are
capitalized, and not defined in this Agreement, shall have the meaning

<PAGE>   5
                                                                               2


in the Act, unless the context clearly indicates otherwise. For convenience of
reference only, Attachment 2 provides a list of acronyms used throughout this
Agreement.

                          GENERAL TERMS AND CONDITIONS

1.      RESERVATION OF RIGHTS TO APPEAL OR PETITION FOR RECONSIDERATION

        1.1.    The filing of this arbitrated Agreement with the Commission in
                accordance with Decision No. 96-12-034 dated December 9,1996
                ("Decision") In the Matter of the Petition of AT&T
                Communications of California, Inc. for Arbitration Pursuant to
                Section 252 of the Telecommunications Act of 1996 to Establish
                an Interconnection Agreement with Pacific Bell, Application
                96-08-040 (Filed August 20,1996) does not in any way constitute
                a waiver by either CLEC or PACIFIC of any right which either
                Party may have to appeal or to petition the Commission for
                reconsideration of any determination contained in the Decision,
                or to seek modification of any language of the Agreement which
                was included (or excluded) due to mistake or clear inadvertence
                caused by the limited amount of time given to prepare this
                Agreement under the Commission's rules.

2.      PROVISION OF LOCAL SERVICE AND UNBUNDLED ELEMENTS

        2.1.    This Agreement and its Attachments are subject to the Act,
                regulations thereunder and relevant FCC and Commission decisions
                in effect on the Effective Date of this Agreement. The effect on
                this Agreement of changes in the Act, regulations thereunder and
                relevant FCC and Commission decisions is set forth in Section 9
                of this Agreement.

        2.2.    This Agreement, which consists of this statement of General
                Terms and Conditions, and Attachments 1 through 18, inclusive,
                sets forth the terms, conditions and prices under which PACIFIC
                agrees to provide to CLEC (a) services for resale (hereinafter
                referred to as "Local Services") and (b) certain unbundled
                Network Elements, Ancillary Functions and additional features
                and (c) other services or combinations of such Local Services,
                Network Elements, Ancillary Functions and other services
                ("Combinations") for CLEC's own use or for resale to others, and
                for purposes of offering telecommunications services of any
                kind. This Agreement also sets forth the terms and conditions
                for the interconnection of CLEC's network to PACIFIC's network
                and the reciprocal compensation for the transport and
                termination of telecommunications traffic. Unless otherwise
                provided in this Agreement, and except where not technically
                feasible in a given area, PACIFIC will perform all of its
                obligations hereunder throughout its entire service area,
                provided, however, that PACIFIC is not required, except at
                CLEC's request pursuant to Section 1.6 of Attachment 6, to
                install new or improved facilities in areas where they do not
                currently exist.


<PAGE>   6
                                                                               3


        2.3.    Subject to this Agreement and its Attachments, the Network
                Elements, Ancillary Functions, Combinations, Local Services, or
                other services provided pursuant to this Agreement may be
                connected to other Network Elements, Ancillary Functions,
                Combinations, Local Services, or other services provided by
                PACIFIC or to any Network Elements, Ancillary Functions,
                Combinations, Local Services or other services provided by CLEC
                itself or by any other vendor. Subject to the requirements of
                this Agreement and its Attachments, CLEC may, at any time add,
                delete, relocate or modify the Network Elements, Ancillary
                Functions, Local Services, Combinations or other services
                purchased hereunder.

        2.4.    PACIFIC will not discontinue any unbundled Network Element,
                Ancillary Service or Combination thereof during the term of this
                Agreement without CLEC's consent, except (i) to the extent
                required by network changes or upgrades, in which event PACIFIC
                will comply with the network disclosure requirements stated in
                the Act and FCC regulations thereunder; or (ii) if required by a
                final order of a court, the FCC or the Commission as a result of
                remand or appeal of the FCC's First Interconnection Order. In
                the event such a final order allows but does not require
                discontinuance, PACIFIC may, on thirty (30) days written notice,
                require that such terms be renegotiated, and the Parties shall
                renegotiate in good faith such mutually acceptable new terms as
                may be required or appropriate to reflect the results of such
                action. In the event that such new terms are not renegotiated
                within ninety (90) days after such notice, or if the Parties are
                unable to agree, either Party may submit the matter to the
                Alternative Dispute Resolution Process described in Attachment
                3.

        2.5.    PACIFIC will not withdraw any Local Service without providing
                one-hundred five (105) days advance notice, from the date of
                notice to the date of withdrawal of the service, to CLEC of
                PACIFIC's intent to withdraw the service, inclusive of the time
                required to file and the Commission to consider an advice letter
                to withdraw the service pursuant to General Order 96A. If
                PACIFIC discontinues a Local Service or Combination of Local
                Services, PACIFIC shall either (a) limit the discontinuance to
                new customers and grandfather the service for all CLEC resale
                customers who subscribe to the service as of the date of
                discontinuance; or (b) offer to CLEC for resale an alternative
                service, having substantially similar capabilities and terms and
                conditions.

3.      TERM OF AGREEMENT; TRANSITIONAL SUPPORT

        3.1.    This Agreement shall expire on 12/19/99, and thereafter the
                Agreement shall continue in force and effect unless and until a
                new agreement, addressing all of the terms of this Agreement,
                becomes effective between the Parties. The Parties agree to
                commence negotiations on a new agreement no less than six (6)
                months before the end of the three (3) years after this
                Agreement becomes effective. In the event that such new terms
                are not renegotiated within such six (6) month 


<PAGE>   7
                                                                               4


                period, either Party may submit the matter to the Alternative
                Dispute Resolution Process described in Attachment 3.

        3.2.    PACIFIC recognizes that the Network Elements, Ancillary
                Functions, Combinations, Local Services and other services
                provided hereunder are vital to CLEC and must be continued
                without interruption, and that CLEC may itself provide or retain
                another vendor to provide such comparable Network Elements,
                Ancillary Functions, Combinations, Local Services or other
                services. PACIFIC and CLEC agree to cooperate in an orderly and
                efficient transition to CLEC or another vendor. PACIFIC and CLEC
                further agree to cooperate in effecting the orderly transition
                to CLEC or another vendor such that the level and quality of the
                Network Elements, Ancillary Functions, Combinations, Local
                Services, and other services are not degraded and to exercise
                their best efforts to effect an orderly and efficient
                transition. CLEC shall be responsible for coordinating such
                transition.

4.      GOOD FAITH PERFORMANCE

        In the performance of their obligations under this Agreement, the
        Parties shall act in good faith and consistently with the intent of the
        Act. Where notice, approval or similar action by a Party is permitted or
        required by any provision of this Agreement (including, without
        limitation, the obligation of the Parties to further negotiate the
        resolution of new or open issues under this Agreement), such action
        shall not be unreasonably delayed, withheld or conditioned.

5.      OPTION TO OBTAIN LOCAL SERVICES OR NETWORK ELEMENTS UNDER OTHER
        AGREEMENTS

        At CLEC's request and pursuant to section 252 of the Act, regulations
        thereunder and relevant court decisions, PACIFIC shall make available to
        CLEC, without unreasonable delay, any interconnection, service or
        network element contained in any agreement to which PACIFIC is a party
        that has been filed and approved by the Commission.

6.      RESPONSIBILITY OF EACH PARTY

        Each Party is an independent contractor, and has and hereby retains the
        right to exercise full control of and supervision over its own
        performance of its obligations under this Agreement and retains full
        control over the employment, direction, compensation and discharge of
        all employees assisting in the performance of such obligations. Each
        Party will be solely responsible for all matters relating to payment of
        such employees, including compliance with social security taxes,
        withholding taxes and all other regulations governing such matters. Each
        Party will be solely responsible for proper handling, storage, transport
        and disposal at its own expense of all (i) substances or materials that
        it or its contractors or agents bring to, create or assume control over
        at Work Locations or, (ii) Waste resulting therefrom or otherwise
        generated in connection with its or its contractors' or agents'
        activities at the Work Locations. Subject to the limitations on
        liability and except as otherwise provided in this Agreement, each Party


<PAGE>   8
                                                                               5


        shall be responsible for (i) its own acts and performance of all
        obligations imposed by Applicable Law in connection with its activities,
        legal status and property, real or personal and, (ii) the acts of its
        own affiliates, employees, agents and contractors during the performance
        of that Party's obligations hereunder.

7.      GOVERNMENTAL COMPLIANCE

        CLEC and PACIFIC each shall comply at its own expense with all
        Applicable Law that relates to (i) its obligations under or activities
        in connection with this Agreement; or (ii) its activities undertaken at,
        in connection with or relating to Work Locations. CLEC and PACIFIC each
        agree to indemnify, defend (at the other Party's request) and save
        harmless the other, each of its officers, directors and employees from
        and against any losses, damages, claims, demands, suits, liabilities,
        fines, penalties and expenses (including reasonable attorneys' fees)
        that arise out of or result from (i) its failure or the failure of its
        contractors or agents to so comply or (ii) any activity, duty or status
        of it or its contractors or agents that triggers any legal obligation to
        investigate or remediate environmental contamination. PACIFIC will be
        solely responsible for obtaining from Governmental Authorities, building
        owners, other carriers, and any other persons or entities, all rights
        and privileges (including, but not limited to, space and power), which
        are necessary for PACIFIC to provide the Network Elements, Ancillary
        Functions, Combinations, Local Services and other services pursuant to
        this Agreement. To the extent necessary, CLEC will cooperate with
        PACIFIC in obtaining such rights and privileges.

8.      RESPONSIBILITY FOR ENVIRONMENTAL CONTAMINATION

        8.1.    CLEC shall in no event be liable to PACIFIC for any costs
                whatsoever resulting from the presence or release of any
                environmental hazard that CLEC did not introduce to the affected
                work location, provided that activities of CLEC or its agents
                did not cause or contribute to a release. PACIFIC shall
                indemnify, defend (at CLEC's request) and hold harmless CLEC,
                each of its officers, directors and employees from and against
                any losses, damages, claims, demands, suits, liabilities, fines,
                penalties and expenses (including reasonable attorneys' fees)
                that arise out of or result from (i) any environmental hazard
                that PACIFIC, its contractors or agents introduce to the work
                locations or (ii) the presence or release of any environmental
                hazard for which PACIFIC is responsible under applicable law.

        8.2.    PACIFIC shall in no event be liable to CLEC for any costs
                whatsoever resulting from the presence or release of any
                environmental hazard that PACIFIC did not introduce to the
                affected work location, provided that actions of PACIFIC or its
                agents did not cause or contribute to a release. CLEC shall
                indemnify, defend (at PACIFIC's request) and hold harmless
                PACIFIC, each of its officers, directors and employees from and
                against any losses, damages, claims, demands, suits,
                liabilities, fines, penalties and expenses (including reasonable
                attorneys fees) that arise out of or result from (i) any
                environmental hazard that CLEC, its contractors


<PAGE>   9
                                                                               6


                or agents introduce to the work locations or (ii) the presence
                or release of any environmental hazard for which CLEC is
                responsible under applicable law.

9.      REGULATORY MATTERS

        9.1.    PACIFIC shall be responsible for obtaining and keeping in effect
                all FCC, state regulatory commission, franchise authority and
                other regulatory approvals that may be required in connection
                with the performance of its obligations under this Agreement.
                CLEC shall be responsible for obtaining and keeping in effect
                all FCC, state regulatory commission, franchise authority and
                other regulatory approvals that may be required in connection
                with its obligations under this Agreement, and with its offering
                of services to CLEC Customers contemplated by this Agreement.
                CLEC shall reasonably cooperate with PACIFIC in obtaining and
                maintaining any required approvals for which PACIFIC is
                responsible, and PACIFIC shall reasonably cooperate with CLEC in
                obtaining and maintaining any required approvals for which CLEC
                is responsible.

        9.2.    To the extent that PACIFIC is required by any Governmental
                Authority to file a tariff or make another similar filing in
                connection with the performance of any action that would
                otherwise be governed by this Agreement, the terms of this
                Agreement shall control, unless this Agreement links a term,
                condition or price in this Agreement to a specific tariff, in
                which case the terms of the tariff as modified from time to time
                will apply. If, subsequent to the effective date of any tariff
                incorporated by reference into this Agreement, PACIFIC is
                ordered not to file tariffs with the state regulatory commission
                or the FCC, or is permitted not to file tariffs (and elects not
                to do so), either generally or for specific Network Elements,
                Ancillary Functions, Combinations, Local Services or other
                services provided hereunder, the terms and conditions of such
                tariffs as of the date on which the requirement to file such
                tariffs was lifted shall, to the degree not inconsistent with
                this Agreement, be deemed incorporated in this Agreement by
                reference.

        9.3.    In the event that any final and nonappealable legislative,
                regulatory, judicial or other legal action renders this
                Agreement or any Attachment hereto inoperable, materially
                affects any material terms of this Agreement, or materially
                affects the ability of CLEC or PACIFIC to perform any material
                terms of this Agreement, CLEC or PACIFIC may, on thirty (30)
                days written notice (delivered not later than thirty (30) days
                following the date on which such action has become legally
                binding and has otherwise become final and nonappealable)
                require that such terms be renegotiated, and the Parties shall
                renegotiate in good faith such mutually acceptable new terms as
                may be required. In the event that such new terms are not
                renegotiated within ninety (90) days after such notice, the
                dispute shall be referred to the Alternative Dispute Resolution
                procedures set forth in Section 17 and Attachment 3.


<PAGE>   10
                                                                               7


        9.4.    Pursuant to the Decision (at 11-12), unless the Parties
                voluntarily agree otherwise, all terms of this Agreement will be
                subject to modification based on future Commission decisions.

10.     LIABILITY AND INDEMNITY

        10.1.   Liabilities of CLEC - CLEC's liability to PACIFIC during any
                Contract Year resulting from any and all causes, other than as
                specified in Sections 7, 8, 10.3 and 10.4, shall not exceed the
                total of any amounts due and owing by CLEC to PACIFIC under this
                Agreement during the Contract Year during which such cause
                accrues or arises.

        10.2.   Liabilities of PACIFIC - PACIFIC's liability to CLEC during any
                Contract Year resulting from any and all causes, other than as
                specified in Sections 7, 8, 10.3 and 10.4, shall not exceed
                Twenty Five Million Dollars ($25,000,000).

        10.3.   No Consequential Damages - NEITHER CLEC NOR PACIFIC SHALL BE
                LIABLE TO THE OTHER PARTY FOR ANY INDIRECT, INCIDENTAL,
                CONSEQUENTIAL, RELIANCE, OR SPECIAL DAMAGES SUFFERED BY SUCH
                OTHER PARTY (INCLUDING WITHOUT LIMITATION DAMAGES FOR HARM TO
                BUSINESS, LOST REVENUES, LOST SAVINGS, OR LOST PROFITS SUFFERED
                BY SUCH OTHER PARTY), REGARDLESS OF THE FORM OF ACTION, WHETHER
                IN CONTRACT, WARRANTY, STRICT LIABILITY, OR TORT, INCLUDING
                WITHOUT LIMITATION NEGLIGENCE OF ANY KIND WHETHER ACTIVE OR
                PASSIVE, AND REGARDLESS OF WHETHER THE PARTIES KNEW OF THE
                POSSIBILITY THAT SUCH DAMAGES COULD RESULT. EACH PARTY HEREBY
                RELEASES THE OTHER PARTY (AND SUCH OTHER PARTY'S SUBSIDIARIES
                AND AFFILIATES, AND THEIR RESPECTIVE OFFICERS, DIRECTORS;
                EMPLOYEES AND AGENTS) FROM ANY SUCH CLAIM. NOTHING CONTAINED IN
                THIS SECTION 10 SHALL LIMIT PACIFIC'S OR CLEC'S LIABILITY TO THE
                OTHER FOR (i) WILLFUL OR INTENTIONAL MISCONDUCT (INCLUDING GROSS
                NEGLIGENCE); (ii) BODILY INJURY, DEATH OR DAMAGE TO TANGIBLE
                REAL OR TANGIBLE PERSONAL PROPERTY PROXIMATELY CAUSED BY
                PACIFIC'S OR CLEC'S NEGLIGENT ACT OR OMISSION OR THAT OF THEIR
                RESPECTIVE AGENTS SUBCONTRACTORS OR EMPLOYEES, NOR SHALL
                ANYTHING CONTAINED IN THIS SECTION 10 LIMIT THE PARTIES'
                INDEMNIFICATION OBLIGATIONS, AS SPECIFIED BELOW. FOR PURPOSES OF
                THIS SECTION 10, AMOUNTS DUE AND OWING TO EITHER PARTY PURSUANT
                TO ATTACHMENT 17 SHALL NOT BE CONSIDERED TO BE INDIRECT,
                INCIDENTAL, CONSEQUENTIAL, RELIANCE, OR SPECIAL DAMAGES.


<PAGE>   11
                                                                              8


        10.4.   Obligation to Indemnify - Each Party shall, and hereby agrees
                to, defend at the other's request, indemnify and hold harmless
                the other Party and each of its officers, directors, employees
                and agents (each, an "Indemnitee") against and in respect of any
                loss, debt, liability, damage, obligation, claim, demand,
                judgment or settlement of any nature or kind, known or unknown,
                liquidated or unliquidated, including without limitation all
                reasonable costs and expenses incurred (legal, accounting or
                otherwise) (collectively, "Damages") arising out of, resulting
                from or based upon any pending or threatened claim, action,
                proceeding or suit by any third party (a "Claim") (i) alleging
                any breach of any representation, warranty or covenant made by
                such indemnifying Party (the "Indemnifying Party") in this
                Agreement, (ii) based upon injuries or damage to any person or
                property or the environment arising out of or in connection with
                this Agreement that are the result of the Indemnifying Party's
                actions, breach of Applicable Law, or status or the actions,
                breach of Applicable Law, or status of its employees, agents and
                subcontractors, or (iii) for actual or alleged infringement of
                any patent, copyright, trademark, service mark, trade name,
                trade dress, trade secret or any other intellectual property
                right, now known or later developed (referred to as
                "Intellectual Property Rights") to the extent that such claim or
                action arises from the Indemnifying Party's or the Indemnifying
                Party's customer's use of the Network Elements, Ancillary
                Functions, Combinations, Local Services or other services
                provided under this Agreement.

        10.5.   Obligation to Defend; Notice; Co-operation - Whenever a Claim
                shall arise for indemnification under Section 10.4, the relevant
                Indemnitee, as appropriate, shall promptly notify the
                Indemnifying Party and request the Indemnifying Party to defend
                the same. Failure to so notify the Indemnifying Party shall not
                relieve the Indemnifying Party of any liability that the
                Indemnifying Party might have, except to the extent that such
                failure prejudices the Indemnifying Party's ability to defend
                such Claim. The Indemnifying Party shall have the right to
                defend against such liability or assertion in which event the
                Indemnifying Party shall give written notice to the Indemnitee
                of acceptance of the defense of such Claim and the identity of
                counsel selected by the Indemnifying Party. Except as set forth
                below, such notice to the relevant Indemnitee shall give the
                Indemnifying Party full authority to defend, adjust, compromise
                or settle such Claim with respect to which such notice shall
                have been given, except to the extent that any compromise or
                settlement shall prejudice the Intellectual Property Rights of
                the relevant Indemnitees. The Indemnifying Party shall consult
                with the relevant Indemnitee prior to any compromise or
                settlement that would affect the Intellectual Property Rights or
                other rights of any Indemnitee, and the relevant Indemnitee
                shall have the right to refuse such compromise or settlement
                and, at the refusing Party's or refusing Parties' cost, to take
                over such defense, provided that in such event the Indemnifying
                Party shall not be responsible for, nor shall it be obligated to
                indemnify the relevant Indemnitee against, any cost or liability
                in excess of such refused compromise or settlement. With respect
                to any defense accepted by the Indemnifying Party, the relevant
                Indemnitee shall be entitled to participate with


<PAGE>   12
                                                                               9


                the Indemnifying Party in such defense if the Claim requests
                equitable relief or other relief that could affect the rights of
                the Indemnitee and also shall be entitled to employ separate
                counsel for such defense at such Indemnitee's expense. In the
                event the Indemnifying Party does not accept the defense of any
                indemnified Claim as provided above, the relevant Indemnitee
                shall have the right to employ counsel for such defense at the
                expense of the Indemnifying Party. Each Party agrees to
                cooperate and to cause its employees and agents to cooperate
                with the other Party in the defense of any such Claim and the
                relevant records of each Party shall be available to the other
                Party with respect to any such defense.

11.     AUDITS AND INSPECTIONS

        11.1.   Subject to PACIFIC's reasonable security requirements and except
                as may be otherwise specifically provided in this Agreement,
                CLEC may audit PACIFIC's books, records, and other documents
                once in each Contract Year for the purpose of evaluating the
                accuracy of PACIFIC's billing and invoicing for services
                provided by PACIFIC to CLEC hereunder. CLEC may employ other
                persons or firms for this purpose. Such audit shall take place
                at a time and place agreed on by the Parties no later than
                thirty (30) days after notice thereof to PACIFIC.

        11.2.   Subject to CLEC's reasonable security requirements and except as
                may be otherwise specifically provided in this Agreement,
                PACIFIC may audit CLEC's books, records, and other documents
                once in each Contract Year for the purpose of evaluating the
                accuracy of CLEC's billing and invoicing for services provided
                by CLEC to PACIFIC hereunder. PACIFIC may employ other persons
                or firms for this purpose. Such audit shall take place at a time
                and place agreed on by the Parties no later than thirty (30)
                days after notice thereof to CLEC.

        11.3.   Each Party shall promptly correct any billing or invoicing
                errors that are revealed in an audit, including making refund of
                any overpayment in the form of a credit, or payment of any under
                payment in the form of a debit, on the invoice for the first
                full billing cycle after the Parties have agreed upon the
                accuracy of the audit results. Any disputes concerning audit
                results shall be resolved pursuant to the Alternate Dispute
                Resolution procedures described in Attachment 3.

        11.4.   Each Party shall cooperate fully in any such audit, providing
                reasonable access to any and all appropriate employees and
                books, records and other documents reasonably necessary to
                assess the accuracy of each Party's billing and invoicing.

        11.5.   Either Party may audit the other Party's books, records and
                documents more than once during any Contract Year if the
                previous audit found previously uncorrected net variances or
                errors in invoices in the other Party's favor with an aggregate
                value of at least three percent (3%) of the amounts payable by
                the Party being audited under this Agreement during the period
                covered by the audit.


<PAGE>   13
                                                                              10


        11.6.   Audits shall be at the requesting Party's expense, subject to
                reimbursement by the audited Party in the event that an audit
                finds an adjustment in the charges or in any invoice paid or
                payable by the requesting Party hereunder by an amount that is,
                on an annualized basis, greater than three percent (3%) of the
                aggregate charges to the requesting Party under this Agreement
                during the period covered by the audit.

        11.7.   Upon (i) the discovery by a Party of overcharges not previously
                reimbursed to the other Party or (ii) the resolution of disputed
                audits, the audited Party shall promptly reimburse the
                requesting Party the amount of any overpayment, plus interest at
                the prime rate compounded daily for the number of days from the
                date of overpayment to and including the date that payment is
                actually made. In no event, however, shall interest be assessed
                on any previously assessed or accrued late payment charges.

        11.8.   Upon (i) the discovery by either Party of underpayments not
                previously paid to the other Party, or (ii) the resolution of
                disputed audits, the audited Party shall promptly pay the other
                Party the amount of any underpayment, plus interest at the prime
                rate compounded daily from the date of underpayment to and
                including the date that payment is actually made.

        11.9.   Subject to PACIFIC's reasonable security requirements and except
                as may be otherwise specifically provided in this Agreement,
                CLEC shall have the following audit rights in addition to the
                financial audit rights provided above: (a) if CLEC has a
                reasonable basis to believe that an audit is required to confirm
                PACIFIC's compliance with the Act or this Agreement, CLEC may
                inspect once, in each Contract Year, PACIFIC's books, records,
                and other documents relevant to the Network Elements, Ancillary
                Functions, Combinations, Local Services, or other services
                provided to CLEC for the purpose of evaluating PACIFIC's
                compliance with the terms and conditions of this Agreement; and
                (b) CLEC shall have the audit rights specified in Attachments 17
                and 18. CLEC employees may conduct audits pursuant to this
                Section 11.9, unless PACIFIC reasonably maintains that the
                books, records and other documents relating to CLEC are
                impossible or impractical to segregate from documents containing
                proprietary information of other parties, in which case, the
                audit shall be conducted by a mutually designated third Party
                auditor, with the expense shared equally by the Parties,
                provided, however, that (a) if the auditor finds that PACIFIC
                has complied with the Act or this Agreement, CLEC shall pay for
                the audit; and (b) if the auditor finds that PACIFIC has not
                complied with the Act or this Agreement, PACIFIC shall pay for
                the audit.

12.     SERVICE PERFORMANCE MEASURES AND RELATED REMEDIES

        12.1.   Remedies. The remedies set forth in Attachment 17 shall apply
                when default has occurred as defined in this Agreement, and,
                where appropriate, default notice has


<PAGE>   14
                                                                              11


                been given. Payment of remedies shall be in the nature of
                liquidated damages to the non-defaulting Party, and shall be in
                lieu of all other damages related to the default, including
                without limitation liability imposed by tariff for the same
                default. Where more than one performance category is subject to
                the remedy, a remedy payment for each category will be made by
                the defaulting Party to the non-defaulting Party, except where
                remedies involve waiver of non-recurring charges, the charge
                will only be waived once per affected service order. Remedies
                for comparative measures will be paid only for those defaulting
                performance areas for the number of provisioning and maintenance
                items that would restore service levels to parity based on the
                measured performance for the same class of service, at the same
                time in the same geographic area.

        12.2.   In order that both Parties may have the opportunity to evaluate
                the forecasting, operational processes and service levels
                provided under the Agreement, remedies will not be applied in
                the first six months from the Effective Date of the Agreement.
                Prior to the commencement of remedies, each Party will measure
                performance and, as mutually agreed, will change measurements,
                objectives and remedy limits when actual performance indicates
                that any of the measurements, objectives or remedy limits are
                ineffective or inappropriate for the service or Network Element
                being provided.

        12.3.   The Parties may amend, modify, delete or add remedies by mutual
                agreement and modification of Attachment 17.

13.     UNCOLLECTIBLE OR UNBILLABLE REVENUES

        13.1.   Uncollectible or unbillabel revenues resulting from, but not
                confined to, provisioning, maintenance, or signal network
                routing errors shall be the responsibility of the Party causing
                such error.

14.     CUSTOMER CREDIT HISTORY

        CLEC and PACIFIC agree to make available to the Centralized Credit Check
        System (CCCS) on a timely basis the following customer payment history
        components for each person or entity that applies for local or intraLATA
        toll Telecommunications Service(s) from either carrier, and for each
        unpaid closed account. Such information shall be provided on the
        condition that the CCCS will only make such information available to the
        carrier to which the person or entity in question has applied for
        telephone service when CCCS has unpaid closed account information for
        that applicant.

        Customer's full name, surname, given name, middle name or initial;
        Service address, when service was/is provided; 
        Mailing address, where bills are sent; 
        Current telephone number; 
        Applicant's previous phone number; if any; 
        Spouse's name, if applicable;


<PAGE>   15
                                                                              12


        Valid identifying number(s) for customer and/or spouse, e.g. 
        Social Security Number, Driver's License, etc.; 
        Specific Data regarding accounts that have left an unpaid debt with the 
        utility; and 
        Payments and adjustments on unpaid accounts to update current balance 
        due information.

15.     FORCE MAJEURE

        15.1.   Except as otherwise specifically provided in this Agreement,
                neither Party shall be liable for any delay or failure in
                performance of any part of this Agreement caused by a Force
                Majeure condition, including acts of the United States of
                America or any state, territory or political subdivision
                thereof, acts of God or a public enemy, fires, floods, disputes,
                freight embargoes, earthquakes, volcanic actions, wars, civil
                disturbances, or other causes beyond the reasonable control of
                the Party claiming excusable delay or other failure to perform.
                Provided, Force Majeure shall not include acts of any
                Governmental Authority relating to environmental, health or
                safety conditions at Work Locations. If any Force Majeure
                condition occurs, the Party whose performance fails or is
                delayed because of such Force Majeure condition shall give
                prompt notice to the other Party, and upon cessation of such
                Force Majeure condition, shall give like notice and commence
                performance hereunder as promptly as reasonably practicable.

        15.2.   Notwithstanding subsection 15.1, preceding, no delay or other
                failure to perform shall be excused pursuant to this Section:
                (i) by the acts or omissions of a Party's subcontractors,
                material men, suppliers or other third persons providing
                products or services to such Party unless such acts or omissions
                are themselves the product of a Force Majeure condition, (ii) if
                the delay or failure relates to environmental, health or safety
                conditions at Work Locations and, (iii) unless such delay or
                failure and the consequences thereof are beyond the control and
                without the fault or negligence of the Party claiming excusable
                delay or other failure to perform.

16.     CERTAIN STATE AND LOCAL TAXES

        Any state or local excise, sales, or use taxes (excluding any taxes
        levied on income) resulting from the performance of this Agreement shall
        be borne by the Party upon which the obligation for payment is imposed
        under applicable law, even if the obligation to collect and remit such
        taxes is placed upon the other Party, provided, however, that the other
        Party has not acted in a manner that has materially impaired the ability
        of the liable Party to contest the tax or the amount of the tax (and
        interest and penalties, etc.) regardless of whether the impairment was
        foreseeable. If the other Party has materially impaired the ability of
        the liable Party to contest the tax or the amount of the tax, the Party
        causing the impairment shall be liable for the tax (interest and
        penalties, etc.) caused by the Party's impairment. Any such taxes shall
        be shown as separate items on applicable billing documents between the
        Parties. The Party so obligated to pay any such taxes may contest the
        same in good faith, at its own expense, and shall be entitled to the
        benefit of any refund or recovery, provided that such Party shall not
        permit any lien to 


<PAGE>   16
                                                                              13


        exist on any asset of the other Party by reason of the contest. The
        Party obligated to collect and remit shall cooperate in any such contest
        by the other Party;

17.     ALTERNATIVE DISPUTE RESOLUTION

        All disputes, claims or disagreements (collectively "Disputes") arising
        under or related to this Agreement or the breach hereof, except those
        arising pursuant to Attachment 13, Connectivity Billing, shall be
        resolved according to the procedures set forth in Attachment 3. Disputes
        involving matters subject to the Connectivity Billing provisions
        contained in Attachment 13, shall be resolved in accordance with the
        Billing Disputes section of Attachment 13. In no event shall the Parties
        permit the pendency of a Dispute to disrupt service to any CLEC Customer
        contemplated by this Agreement. The foregoing notwithstanding, neither
        this Section 17 nor Attachment 3 shall be construed to prevent either
        Party from (a) invoking a remedy required or permitted by the Act or FCC
        regulations thereunder or (b) seeking and obtaining temporary equitable
        remedies, including temporary restraining orders. A request by a Party
        to a court or a regulatory authority for interim measures or equitable
        relief shall not be deemed a waiver of the obligation to comply with
        Attachment 3.

18.     NOTICES

        Any notices or other communications required or permitted to be given or
        delivered under this Agreement shall be in hard-copy writing (unless
        otherwise specifically provided herein) and shall be sufficiently given
        if delivered personally or delivered by prepaid overnight express
        service to the following (unless otherwise specifically required by this
        Agreement to be delivered to another representative or point of
        contact):

        If to CRL Network Services:

        Jim Couch
        President
        One Kearny Street, Suite 1450
        San Francisco, CA 94108

        and

        Contracts Administrator
        One Kearny Street, Suite 1450
        San Francisco, CA 94108

        If to PACIFIC:

        Director, Competitor Provider Accounts
        370 Third Street, Room 716
        San Francisco, CA 94107


<PAGE>   17
                                                                              14


        and

        James B. Young
        General Attorney & Assistant General Counsel
        Pacific Telesis Legal Group
        140 New Montgomery Street, Room 1811
        San Francisco, CA 94105
        Fax: (415) 974-5570

        Either Party may unilaterally change its designated representative
        and/or address for the receipt of notices by giving seven (7) days prior
        written notice to the other Party in compliance with this Section. Any
        notice or other communication shall be deemed given when received.

19.     CONFIDENTIALITY AND PROPRIETARY INFORMATION

        19.1.   For the purposes of this Agreement, "Confidential Information"
                means confidential or proprietary technical or business
                Information given by the Discloser to the Recipient. All
                information which is disclosed by one Party to the other in
                connection with this Agreement shall automatically be deemed
                proprietary to the Discloser and subject to this Agreement,
                unless otherwise confirmed in writing by the Discloser. In
                addition, by way of example and not limitation, all orders for
                Network Elements Ancillary Functions, Combinations, Local
                Services or other services placed by CLEC pursuant to this
                Agreement, and information that would constitute Customer
                Proprietary Network Information of CLEC Customers pursuant to
                the Act and the rules and regulations of the FCC, and Recorded
                Usage Data as described in Attachment 14, whether disclosed by
                CLEC to PACIFIC or otherwise acquired by PACIFIC in the course
                of the performance of this Agreement, shall be deemed
                Confidential Information of CLEC for all purposes under this
                Agreement.

        19.2.   For a period of five (5) years from the receipt of Confidential
                Information from the Discloser, except as otherwise specified in
                this Agreement, the Recipient agrees (a) to use it only for the
                purpose of performing under this Agreement; (b) to hold it in
                confidence and disclose it to no one other than its employees
                having a need to know for the purpose of performing under this
                Agreement; and (c) to safeguard it from unauthorized use or
                disclosure with at least the same degree of care with which the
                Recipient safeguards its own Confidential Information. If the
                Recipient wishes to disclose the Discloser's Confidential
                Information to a third party agent or consultant, such
                disclosure must be mutually agreed to in writing by the Parties
                to this Agreement, and the agent or consultant must have
                executed a written agreement of non-disclosure and non-use
                comparable in scope to the terms of this Section.

        19.3.   The Recipient may make copies of Confidential Information only
                as reasonably necessary to perform its obligations under this
                Agreement. All such copies shall 

<PAGE>   18
                                                                              15


                bear the same copyright and proprietary rights notices as are
                contained on the original.

        19.4.   The Recipient agrees to return all Confidential Information in
                tangible form received from the Discloser, including any copies
                made by the Recipient, within thirty (30) days after a written
                request is delivered to the Recipient, or to destroy all such
                Confidential Information. except for Confidential Information
                that the Recipient reasonably requires to perform its
                obligations under this Agreement. If either Party loses or makes
                an unauthorized disclosure of the other Party's Confidential
                Information, it shall notify such other Party immediately and
                use reasonable efforts to retrieve the lost or wrongfully
                disclosed information.

        19.5.   The Recipient shall have no obligation to safeguard Confidential
                Information: (a) which was in the possession of the Recipient
                free of restriction prior to its receipt from the Discloser; (b)
                after it becomes publicly known or available through no breach
                of this Agreement by the Recipient; (c) after it is rightfully
                acquired by the Recipient free of restrictions on its
                disclosure; or (d) after it is independently developed by
                personnel of the Recipient to whom the Discloser's Confidential
                Information had not been previously disclosed. In addition,
                either Party shall have the right to disclose Confidential
                Information to any mediator, arbitrator, state or federal
                regulatory body, the Department of Justice or any court in the
                conduct of any mediation, arbitration or approval of this
                Agreement or in any proceedings concerning the provision of
                interLATA services by PACIFIC. Additionally, the Recipient may
                disclose Confidential Information if so required by law, a
                court, or governmental agency, so long as the Discloser has been
                notified of the requirement promptly after the Recipient becomes
                aware of the intended disclosure, and so long as the Recipient
                undertakes all lawful measures to avoid disclosing such
                information until Discloser has had reasonable time to seek a
                protective order that covers the Confidential Information to be
                disclosed.

        19.6.   Each Party's obligations to safeguard Confidential Information
                disclosed prior to expiration or termination of this Agreement
                shall survive such expiration or termination.

        19.7.   Except as otherwise expressly provided elsewhere in this
                Agreement, no license is hereby granted under any patent,
                trademark, or copyright, nor is any such license implied, solely
                by virtue of the disclosure of any Confidential Information.

        19.8.   Each Party agrees that the Discloser would be irreparably
                injured by a breach of this Agreement by the Recipient or its
                representatives and that the Discloser shall be entitled to seek
                equitable relief, including injunctive relief and specific
                performance, in the event of any breach of the provisions of
                this Agreement. Such remedies shall not be deemed to be the
                exclusive remedies for a breach of this Agreement, but shall be
                in addition to all other remedies available at law or in equity.


<PAGE>   19
                                                                              16


        19.9.   Nothing in this Section 19 shall prevent PACIFIC from using
                Recorded Usage Data for the limited purpose of network planning
                and management.

20.     BRANDING

        20.1.   Services offered by CLEC that incorporate Network Elements,
                Ancillary Functions or Combinations made available to CLEC
                pursuant to this Agreement, and Local Services that CLEC offers
                for resale shall be branded as stated in the Attachments to this
                Agreement. In no event shall PACIFIC personnel installing or
                repairing CLEC Local Service, Network Elements, or Combinations
                initiate a conversation with the end user customer to market
                PACIFIC products or services. PACIFIC personnel shall respond to
                any inquires from end users or consumers concerning PACIFIC's
                products or services by providing a telephone number to call for
                information.

21.     MISCELLANEOUS

        21.1.   Delegation or Assignment - Neither Party shall assign any of its
                rights or delegate any of its obligations under this Agreement
                without the prior written consent of the other Party which will
                not be unreasonably withheld. Any prohibited assignment or
                delegations shall be null and void.

        21.2.   Subcontracting - Neither Party shall subcontract the performance
                of any obligation under this Agreement without the prior written
                consent of the other Party, which shall not be unreasonably
                withheld. If any obligation is performed through a
                subcontractor, the original Party shall remain fully responsible
                for the performance of this Agreement in accordance with its
                terms, including any obligations it performs through
                subcontractors, and shall be solely responsible for payments due
                its subcontractors. No contract, subcontract or other agreement
                entered into by either Party with any third party in connection
                with the provision of Local Services or Network Elements
                hereunder shall provide for any indemnity, guarantee or
                assumption of liability by, or other obligation of, the other
                Party to this Agreement with respect to such arrangement, except
                as consented to in writing by the other Party. No subcontractor
                shall be deemed a third party beneficiary for any purposes under
                this Agreement.

        21.3.   Nonexclusive Remedies - Except as otherwise expressly provided
                in this Agreement, each of the remedies provided under this
                Agreement is cumulative and is in addition to any remedies that
                may be available at law or in equity.

        21.4.   No Third-Party Beneficiaries - Except as may be specifically set
                forth in this Agreement, this Agreement does not provide and
                shall not be construed to provide third parties with any remedy,
                claim, liability, reimbursement, cause of action, or other
                privilege.


<PAGE>   20
                                                                              17


        21.5.   Referenced Documents - Whenever any provision of this Agreement
                refers to a technical reference, technical publication, CLEC
                practice, PACIFIC practice, any publication of
                telecommunications industry administrative or technical
                standards, or any other document specifically incorporated into
                this Agreement, it will be deemed to be a reference to the most
                recent version or edition (including any amendments,
                supplements, addenda, or successors) of such document that is in
                effect, and will include the most recent version or edition
                (including any amendments, supplements, addenda, or successors)
                of each document incorporated by reference in such a technical
                reference, technical publication, CLEC practice, PACIFIC
                practice, or publication of industry standards. Should there be
                an inconsistency between or among publications or standards, the
                Parties shall mutually agree which requirement shall apply.

        21.6.   Governing Law - The validity of this Agreement, the construction
                and enforcement of its terms, and the interpretation of the
                rights and duties of the Parties shall be governed by the laws
                of the State of California other than as to conflicts of laws,
                except insofar as federal law may control any aspect of this
                Agreement, in which case federal law shall govern such aspect.
                The Parties submit to personal jurisdiction in San Francisco,
                California and waive any and all objections to California venue.

        21.7.   Publicity and Advertising - Neither Party shall publish or use
                any advertising, sales promotions or other publicity materials
                that use the other Party's logo, trademarks or service marks
                without the prior written approval of the other Party.

        21.8.   Amendments or Waivers - Except as otherwise provided in this
                Agreement, no amendment or waiver of any provision of this
                Agreement, and no consent to any default under this Agreement
                shall be effective unless the same is in writing and signed
                either by an officer of the Party against whom such amendment,
                waiver or consent is claimed or by the designated representative
                of such an officer. In addition, no course of dealing or failure
                of a Party strictly to enforce any term, right or condition of
                this Agreement shall be construed as a waiver of such term,
                right or condition. By entering into this Agreement neither
                Party waives any right granted to it pursuant to the Act.

        21.9.   Severability - If any term, condition or provision of this
                Agreement is held to be invalid or unenforceable for any reason,
                such invalidity or unenforceability shall not invalidate the
                entire Agreement, unless such construction would be
                unreasonable. The Agreement shall be construed as if it did not
                contain the invalid or unenforceable provision or provisions,
                and the rights and obligations of each Party shall be construed
                and enforced accordingly; provided, however, that in the event
                such invalid or unenforceable provision or provisions are
                essential elements of this Agreement and substantially impair
                the rights or obligations of either Party, the Parties shall
                promptly negotiate a replacement provision or provisions.


<PAGE>   21
                                                                              18


        21.10.  Entire Agreement - This Agreement, which shall include the
                Attachments, Appendices and other documents referenced herein,
                constitutes the entire Agreement between the Parties concerning
                the subject matter hereof and supersedes any prior agreements,
                representations, statements, negotiations, understandings,
                proposals or undertakings, oral or written, with respect to the
                subject matter expressly set forth herein.

        21.11.  Definitions and Diagrams: The definitions contained in
                Attachment 1 are meant to accurately describe the meaning
                accorded the term as required by the Act and as used in this
                Agreement. In the event of any disagreement between a definition
                of the term in the Act, in Attachment 1 or any other part of
                this Agreement (including the Attachments), the definition in
                the Act shall supersede any definition in the Agreement or
                Attachments and any specific definition in an Attachment other
                than Attachment 1 shall supersede the definition in Attachment
                1. Throughout this Agreement and its Attachments, various
                diagrams are used. These diagrams are illustrative only, and, in
                the event of any disagreement between the diagram and the words
                of this Agreement, the words of this Agreement shall control.

        21.12.  Survival of Obligations - Any liabilities or obligations of a
                Party for acts or omissions prior to the cancellation or
                termination of this Agreement, any obligation of a Party under
                the provisions regarding indemnification, Confidential
                Information, limitations on liability, and any other provisions
                of this Agreement which, by their terms, are contemplated to
                survive (or to be performed after) termination of this
                Agreement, shall survive cancellation or termination thereof.

        21.13.  Executed in Counterparts - This Agreement may be executed in any
                number of counterparts, each of which shall be deemed an
                original; but such counterparts shall together constitute one
                and the same instrument.

        21.14.  Headings of No Force or Effect - The headings of Articles and
                Sections of this Agreement are for convenience of reference
                only, and shall in no way define, modify or restrict the meaning
                or interpretation of the terms or provisions of this Agreement.

<PAGE>   22
                                                                              19


In witness whereof, the Parties have executed this Agreement through their
authorized representatives.


        PACIFIC BELL                              CRL NETWORK SERVICES


Signature: /S/ Sandy Kinney                  Signature: /S/ James Couch
           ------------------------                     ------------------------

Printed Name: Sandy Kinney                   Printed Name: James Couch
              ---------------------                        ---------------------

Title: VP-GM Industry Markets                Title: President
       ----------------------------                 ----------------------------

Date: 9/22/98                                Date: 9/9/98
      -----------------------------                -----------------------------

<PAGE>   23


                                                                    ATTACHMENT 1
                                                                          Page 1


                                  ATTACHMENT 1

                                   DEFINITIONS



















                                       1
<PAGE>   24
                                                                    ATTACHMENT 1
                                                                          Page 2


1.         "Access Tandem Switches" are switches used to connect End Offices to
           Interexchange Carrier switches. PACIFIC's Access Tandem Switches are
           also used to connect and switch traffic between and among Central
           Office Switches.

2.         "Act" means the Communications Act of 1934, 47 U.S.C. 151 et seq., as
           amended by the Telecommunications Act of 1996, and as interpreted
           from time to time in the duly authorized rules and regulations of the
           FCC or the Commission.

3.         "Advanced Intelligent Network (AIN) Trigger Capability" is a network
           functionality that permits specific conditions to be programmed into
           a switch which, when met, directs the switch to suspend call
           processing and to receive special instructions for further call
           handling instructions in order to enable carriers to offer advanced
           features and services.

4.         "AMA" means the Automated Message Accounting structure inherent in
           switch technology that initially records telecommunication message
           information. AMA format is contained in the Automated Message
           Accounting document, published by Bellcore as GR-1100-CORE which
           defines the industry standard for message recording.

5.         "Ancillary Functions" are services or facilities that PACIFIC offers
           to CLEC so that CLEC may obtain and use unbundled Network Elements or
           PACIFIC services to provide telecommunications services to CLEC's
           customers. Ancillary Functions include collocation and rights of way,
           and may include other services or facilities as mutually agreed to by
           the parties.

6.         "Applicable Law" shall mean all laws, statutes, common law,
           regulations, ordinances, codes, rules, guidelines, orders, permits
           and approvals of any Governmental Authority, including without
           limitation those relating to the environment, health and safety,
           which apply or relate to Work Locations or the subject matter of this
           Agreement.

7.         "CLEC Customer" means the relationship for a specific service with
           any business or residential customer to the extent such customer
           purchases CLEC services.

8.         "Automatic Number Identification" or "ANI" means a Feature Group D
           signaling parameter that refers to the number transmitted through the
           network identifying the billing number of the calling party.

9.         "Automatic Location Identification/(ALI)" means the feature of E911
           that displays at the PSAP the address of the calling telephone
           number. This feature requires a data storage and retrieval system for
           translating telephone numbers to the associated address. ALI
           information may include Emergency Service Number (ESN), street
           address, room or floor, and names of the enforcement, fire and
           medical agencies with jurisdictional responsibility for the address.
           The Management System (E911) database is used to update the Automatic
           E911 Location Identification (ALI) databases.



                                       2
<PAGE>   25
                                                                    ATTACHMENT 1
                                                                          Page 3


10.        "Automatic Route Selection (ARS)" is a service feature that provides
           for automatic selection of the most appropriate outbound route for
           each call based on criteria programmed into the system.

11.        "Busy Line Verification" or "BLV" means a service in which an end
           user requests an operator to confirm the busy status of a line.

12.        "Busy Line Verification and Interrupt" or "BLVI" means a service in
           which an end user requests an operator to confirm the busy status of
           a line and requests an interruption of the call.

13.        "CABS" means the Carrier Access Billing System.

14.        "Calling Party Number (CPN)" means a Common Channel Signaling
           parameter which refers to the number transmitted through the network
           identifying the calling party.

15.        "Central Office Switch" or "Central Office" means a switching entity
           within the public switched telecommunications network, including but
           not limited to End Office Switches and Tandem Switches. Central
           Office Switches may be employed as combination End Office/Tandem
           Switches.

16.        "CLC Operations Handbook" means Sections 16.6 and 16.7 of the CLC
           Handbook, which address PACIFIC's Operations and Administration
           interfaces for local interconnection and SS7.

17.        "Centralized Message Distribution System" ("CMDS") means the
           transport system that LECs use to exchange outcollect and CABS access
           messages among each other and other parties connected to CMDS.

18.        "Charge Number" means a CCS signaling parameter that refers to the
           number transmitted through the network identifying the billing number
           of the calling party.

19.        "Centrex" means a Telecommunications Service that uses central office
           switching equipment for call routing to handle direct dialing of
           calls, and to provide many private branch exchange-like features.

20.        "CLASS (Custom Local Area Signaling Service) and Custom Features"
           means a grouping of optional enhancements to basic local exchange
           service that offers special call handling features to end users
           (e.g., call waiting, call forwarding and automatic redial).

21.        "Combination" shall have the meaning set forth in 47 C.F.R. Sec.
           51.315.

22.        "Commission" means the California Public Utilities Commission.

23.        "Common Channel Signaling" or "CCS" means a method of digitally
           transmitting call set-up and network control data over a special
           network fully separate from the public 



                                       3
<PAGE>   26
                                                                    ATTACHMENT 1
                                                                          Page 4


           switched network elements that carry the actual call. Signaling
           System 7 ("SS7") is the CCS network presently used by
           telecommunications carriers.

24.        "Competitive Local Carrier (CLC) or Competitive Local Exchange
           Carrier (CLEC)" is a carrier who competes in the provision of local
           exchange telecommunications service as set forth in Opinion, Appendix
           C, Section 3(B), and is not an Incumbent LEC as defined by 47 U.S.C.,
           Section 251(h) of the Act.

25.        "Conduit" means a tube or similar enclosure that may be used to house
           communication or communications-related power cables. Conduit may be
           underground or above ground (for example, inside buildings) and may
           contain one or more inner ducts. An inner duct means a separate tube
           or enclosure within a conduit.

26.        "Confidential Information" has the meaning set forth in Section 18.1
           of the General Terms and Conditions.

27.        "Contract Year" means a twelve (12) month period during the term of
           the contract commencing on the Effective Date and each anniversary
           thereof.

28.        "Control Office" means an exchange carrier center or office
           designated as its company 5 single point of contact for the
           provisioning and maintenance of its portion of interconnection
           arrangements

29.        "Cross Connection" means an intra-wire center channel connecting
           separate pieces of telecommunications equipment

30.        "Customer Usage Data" means the local Telecommunications Services
           usage data of an CLEC Customer, measured in minutes, sub-minute
           increments, message units, or otherwise, that is recorded by PACIFIC
           and forwarded to CLEC.

31.        "Directory Number Call Forwarding (DNCF)" means an interim form of
           Service Provider Number Portability ("SPNP") which is provided
           through existing and available call routing and call forwarding
           capabilities. DNCF will forward calls dialed to an original telephone
           number to a new telephone number on a multi-path basis. DNCF is not
           limited to listed directory numbers.



                                       4
<PAGE>   27
                                                                    ATTACHMENT 1
                                                                          Page 5


32.        "Discloser" means that party to this Agreement which has disclosed
           Confidential Information to the other party.

33.        "DSX Panel" means a cross-connect bay or panel used for the
           termination of equipment and facilities operating at digital rates.

34.        "DS-0" means a digital signal rate of 64 Kilobits per second
           ("kbps").

35.        "DS-1" means a digital signal rate of 1.544 Megabits Per Second
           ("Mbps").

36.        "DS-3" means a digital signal rate of 44.736 Mbps.

37.        "E911 Management System (MS)" A system of computer programs used by
           PACIFIC to create, store and update the data that provides Selective
           Routing (SM) and/or Automatic Location Identification (ALI).

38.        "E911 Management System Gateway" is a processor that can relieve the
           host computer (management system) of performing certain tasks, such
           as message handling, code conversion, error control and application
           functions.

39.        "E911 Service" is a method of routing 911 calls to a PSAP that uses
           customer location data in the ALI/DMS to determine the PSAP to which
           a call should be routed.

40.        "Effective Date" is the date indicated in the Preface on which the
           Agreement shall become effective.

41.        "EISCC" or "Expanded Interconnection Cross Connection" means the
           connection between the collocation point of termination ("POT') and
           the unbundled Network Element or interconnection point to a switched
           or dedicated service in PACIFIC's network.

42.        "Electronic File Transfer" means any system or process that utilizes
           an electronic format and protocol to send or receive data files.

43.        "End Office Switches" are switches from which end users' Exchange
           services are directly connected and offered.

44.        "Environmental Hazard" means any substance the presence, use,
           transport, abandonment or disposal of which (i) requires
           investigation, remediation, compensation, fine or penalty under any
           Applicable Law (including, without limitation, the Comprehensive
           Environmental Response Compensation and Liability Act, Superfund
           Amendment and Reauthorization Act, Resource Conservation Recovery
           Act, the Occupational Safety and 


                                       5
<PAGE>   28
                                                                    ATTACHMENT 1
                                                                          Page 6


           Health Act and provisions with similar purposes in applicable
           foreign, state and local jurisdictions) or (ii) poses risks to human
           health, safety or the environment (including, without limitation,
           indoor, outdoor or orbital space environments) and is regulated under
           any Applicable Law.

45.        "Exchange Message Record" or "EMR" means the standard used for
           exchange of telecommunications message information among LECs for
           billable, non-billable, sample, settlement and study data. EMR format
           is contained in BR-010-200-010 CRIS Exchange Message Record, a
           Bellcore document which defines industry standards for exchange
           message records.

46.        "Exchange Service" is as defined in the Act.

47.        "FCC" means the Federal Communications Commission.

48.        "First Interconnection Order" means the First Report and Order issued
           In the Matter of Implementation of the Local Competition provision in
           the Telecommunications Act of 1996 (CC Docket No. 96-98, FCC 96-325)
           (released August 8,1996).

49.        "Governmental Authority" means any federal, state, local, foreign or
           international court, government, department, commission, board,
           bureau, agency, official, or other regulatory, administrative,
           legislative or judicial authority with jurisdiction.

50.        "Interconnection" is as described in the Act.

51.        "Interexchange Carrier (IEC or IXC)" means a provider of
           interexchange telecommunications services.

52.        "Interim Number Portability" or "INP" means the delivery of service
           provider Number Portability capabilities through the use of
           switch-based call routing as described in 47 C.F.R. Sec. 52.7.

53.        "Integrated Services Digital Network" or "ISDN" means a digital
           switched network service. "Basic Rate ISDN" provides for channelized
           (23 bearer and 1 data) end-to-end digital connectivity for the
           transmission of voice or data on either or both bearer channels and
           packet data on the data channel. "Primary Rate ISDN" provides for 24
           bearer and 1 data channels.

54.        "LATA-Wide Terminating Interconnection" means an interconnection
           arrangement whereby one Party interconnects to a single designated
           tandem switch of the other Party to terminate local and intraLATA
           toll. The Party providing such termination will designate the tandem
           switch where such interconnection is to occur.

55.        "Line Information Data Base(s) (LIDB)" means one or all, as the
           context may require, of the Line Information Databases owned
           individually by ILECs and other entities which provide, among other
           things, calling card validation functionality for telephone line



                                        6
<PAGE>   29
                                                                    ATTACHMENT 1
                                                                          Page 7


           number cards issued by ILECs and other entities. A LIDB also contains
           validation data for collect and third number-billed calls, which
           include billed number screening.

56.        "Line Side" refers to End Office switch connections that have been
           programmed to treat the circuit as a local line connected to a
           terminating station (e.g., an ordinary subscriber's telephone station
           set, a PBX, answering machine, facsimile machine or computer). Line
           Side connections offer only those transmission and signal features
           appropriate for a connection between an End Office and such
           terminating station.

57.        "Link" has the meaning set forth in Attachment 6, Section 3.

58.        "Local Calls" are as defined by the Commission. Local Calls currently
           include all 0-12 mile calls based on the rate centers of the
           originating and terminating NPA-NXXs of the callers (these include
           ZUM Zone 1 and ZUM Zone 2 calls) and, where established in incumbent
           LEC tariffs, ZUM Zone 3 and Extended Area Service (EAS) calls.

59.        "Local Exchange Routing Guide" or "LERG" means a Bellcore Reference
           Document used by LECs and IXCs to identify NPA-NXX routing and homing
           information as well as Network Element and equipment designations.

60.        "Local Exchange Traffic" means traffic originated on the network of a
           LEC in a LATA and completed directly between that LEC's network and
           the network of another LEC in that same LATA, including intraLATA
           toll traffic and traffic originated to or terminated from LECs not
           party to this Agreement. Local Exchange Traffic does not include
           traffic that is routed to or terminated from the network of an IXC.

61.        "Local Interconnection Trunks/Trunk Groups" are used for the
           termination of Local Exchange Traffic, using Bellcore Technical
           Reference GR-317-CORE ("GR-317").

62.        "Local Loop" shall have the meaning set forth in 47 C.F.R. Section
           51.319(a).

63.        "Local Number Portability (LNP)" means the ability of users of
           telecommunications services to retain, at the same location, existing
           telecommunications numbers without impairment of quality,
           reliability, or convenience when switching from one
           telecommunications carrier to another.

64.        "Local Service" has the meaning set forth in Attachment 5, Section
           1.1.

65.        "Loop" has the meaning set forth in Attachment 6, Section 3.

66.        "MECAB" means the Multiple Exchange Carrier Access Billing document
           prepared under the direction of the Billing Committee of the Ordering
           and Billing Forum "OB F", which functions under the auspices of the
           Carrier Liaison Committee of the Alliance for Telecommunications
           Industry Solutions (ATIS), Section 23.1 of Part 1. The MECAB
           document, published by Bellcore as Special Report SR-BDS-000983,
           contains the recommended guidelines for the billing of access and
           other connectivity services



                                        7
<PAGE>   30
                                                                    ATTACHMENT 1
                                                                          Page 8


           provided by two or more LECs (including LECs and CLECs), or by one
           LEC or CLEC in two or more states within a single LATA.

67.        "Meet Point Trunks/Trunk Groups" ("MPTGs") are used for the joint
           provision of Switched Access services, utilizing Bellcore Technical
           References GR-394-CORE ("GR-394") and GR-317 CORE ("GR-317"). MPTGs
           are those between a local End Office and an Access Tandem as
           described in FSD 20-24-0000 and 20-24-0300.

68.        "MECOD" means the Multiple Exchange Carriers Ordering and Design
           Guidelines for Access Services - Industry Support Interface, a
           document developed by the Ordering/Provisioning Committee under the
           auspices of the OBF, which functions under the auspices of the
           Carrier Liaison Committee of the ATI S. The MECOD document, published
           by Bellcore as Special Report SR STS-002643, establishes methods for
           processing orders for access and other connectivity service which is
           to be provided by two or more local carriers (including a LEC and a
           CLC), or by one LEC or CLEC in two or more states within a single
           LATA.

69.        "Mid-Span Meet" means an interconnection between two LECs whereby
           each provides its own cable and equipment up to the meet point of the
           cable facilities. The meet point is the demarcation establishing
           ownership of and responsibility for each LEC's portion of the
           transmission facility.

70.        "911 Service" means a universal telephone number which gives the
           public direct access to the PSAP. Basic 911 service collects 911
           calls from one or more local exchange switches that serve a
           geographic area. The calls are then sent to the authority designated
           to receive such calls.

71.        "Network Element" is as defined in the Act.

72.        "North American Numbering Plan (NANP)" means the system of telephone
           numbering employed in the United States, Canada, and certain
           Caribbean countries.

73.        "Numbering Plan Area (NPA)" is also sometimes referred to as an area
           code and the three digit indicator that is defined by the "A", "B"
           and "C" digits of each 10-digit telephone number within the NANP.
           Each NPA contains 800 possible NXX Codes. There are two general
           categories of NPA. "Geographic NPA" is associated with a defined
           geographic area, and all telephone numbers bearing such NPA are
           associated with services provided within that Geographic area. A
           "Non-Geographic NPA," also known as a "Service Access Code" ("SAC
           Code"), is typically associated with a specialized telecommunications
           service which may be provided across multiple geographic NPA areas;
           500, Toll Free Service NPAs, 700, and 900 are examples of
           Non-Geographic NPAs.

74.        "Number Portability" is as defined in the Act.



                                       8
<PAGE>   31
                                                                    ATTACHMENT 1
                                                                          Page 9


75.        "NXX", "NXX Code" or "Central Office Code" means the three digit
           switch entity indicator that is defined by the "D", "E" and "F"
           digits of a 10-digit telephone number within the NANP. Each NXX Code
           contains 10,000 station numbers.

76.        "OBF" means the Ordering and Billing Forum (OBF), which functions
           under the auspices of the Carrier Liaison Committee (CLC) of the
           Alliance for Telecommunications Industry Solutions (ATIS).

77.        "Originating Line Information (OLI)" is an SS7 Feature Group D
           signaling parameter which refers to the number transmitted through
           the network identifying the billing number of the calling party.

78.        "PACIFIC" means Pacific Bell.

79.        "Party" means either CLEC or PACIFIC. "Parties" means CLEC and
           PACIFIC.

80.        "Percent Local Usage or "PLU" means a percentage amount that
           represents the ratio of the local minutes to the sum of local and
           intraLATA toll minutes sent between the Parties over Local
           Interconnection Trunks. Directory Assistance, BLV/BLVI, 900, 976,
           transiting calls from other LECs, WSP traffic and interLATA Switched
           Access calls are not included in the calculation of PLU.

81.        "Permanent Number Portability (PNP)" means a long-term solution to
           provide LNP for all customers and all providers consistent with the
           Act and implementing regulations.

82.        "Physical Collocation" shall have the meaning set forth in 47 C.F.R.
           Section 51.5.

83.        "Point of Interconnection" or "P0I" means a physical location at
           which the Parties' networks meet for the purpose of establishing
           interconnection. POIs include a number of different technologies and
           technical interfaces based on the Parties' mutual agreement.

84.        "Pole Attachment" means the connection of a facility to a utility
           pole. Some examples of facilities are mechanical hardware, grounding
           and transmission cable, and equipment boxes.

85.        "Port" means a termination point in the end office switch. For
           purposes of general illustration, a Port includes a line card and
           associated peripheral equipment on an End Office Switch which serves
           as the hardware termination for line or trunk side facilities
           connected to the End Office switch. Each line side Port is typically
           associated with one or more telephone numbers that serve as the
           customer's network address.

86.        "Public Safety Answering Point (PSAP)" means the designated agency to
           which calls to E911/911 services are routed.

87.        "Rate Center" identifies the specific geographic point and
           corresponding geographic area which are associated with one or more
           particular NPA-NXX codes which have been assigned to a LEC (or CLEC)
           for its provision of Exchange Services. The rate point is a



                                       9
<PAGE>   32
                                                                    ATTACHMENT 1
                                                                         Page 10


           geographic location identified by specific V&H (vertical and
           horizontal coordinates), which are used to measure distance sensitive
           end user traffic to/from the particular NPA-NXX designations with the
           specific Rate Center.

88.        "Rating Point" means the Vertical and Horizontal ("V&H") coordinates
           associated with a particular telephone number for rating purposes.

89.        "Real Time" means the actual time in which an event takes place, with
           the reporting on or the recording of the event practically
           simultaneous with its occurrence.

90.        "Recipient" means that party to this Agreement to which Confidential
           Information has been disclosed by the other party.

91.        "Recorded Usage Data" has the meaning set forth in Attachment 14.

92.        "Release" means any release, spill, emission, leaking, pumping,
           injection, deposit, disposal, discharge, dispersal, leaching, or
           migration, including without limitation, the movement of
           Environmental Hazards through or in the air, soil, surface water or
           groundwater, or any action or omission that causes Environmental
           Hazards to spread or become more toxic or more expensive to
           investigate or remediate.

93.        "Right of Way (ROW)" means the right to use the land or other
           property of a third party or governmental authority to place poles,
           conduits, cables, other structures and equipment, or to provide
           passage to access such structures and equipment. A ROW may run under,
           on, or above public or private property (including air space above
           public or private property) and may include the right to use discrete
           space in buildings, building complexes or other locations.

94.        "Routing Point" means a location which a LEC has designated on its
           own network as the homing or routing point for traffic inbound to
           Exchange Service provided by the LEC which bears a certain NPA-NXX
           designation. The Routing Point is employed to calculate mileage
           measurements for the distance-sensitive transport element charges of
           Switched Access services. The Routing Point need not be the same as
           the Rating Point, nor must it be located within the Rate Center area,
           but must be in the same LATA as the NPA-NXX.

95.        "Served Premises" means collectively, the CLEC designated locations
           to which CLEC orders Network Elements, Ancillary Functions or
           Combinations.

96.        "Service Control Point" or "SCP" means a node in the CCS network to
           which information requests for service handling, such as routing, are
           directed and processed. The SCP is a real time database system that,
           based on a query from a Service Switching Point ("SSP"), performs
           subscriber or application-specific service logic and then sends
           instructions back to the SSP on how to continue call processing.



                                       10
<PAGE>   33
                                                                    ATTACHMENT 1
                                                                         Page 11


97.        "Service provider local number portability" shall have the same
           meaning as Number Portability as defined in the Act and FCC
           regulations thereunder.

98.        "Signal Transfer Point" or "STP" means equipment that performs a
           packet switching function that routes signaling messages among SSPs,
           SCPs, Signaling Points ("SPs"), and other STPs in order to set up
           calls and to query databases for advanced services.

99.        "Special Construction" shall have the meaning set forth in PACIFIC's
           Schedule P.U.C. No. 175-T, Section 15.1(B) and (H) as of the
           Effective Date of this Agreement and shall not be subject to change
           except upon mutual agreement of the Parties (even if the underlying
           tariff changes), provided that CLEC will be treated no less favorably
           than PACIFIC treats its own end-user customers.

100.       "Switched Access" service means an offering of access to services or
           facilities for the purpose of the origination or termination of
           traffic from or to Exchange Service customers in a given area
           pursuant to a Switched Access tariff Switched Access services
           includes: Feature Group A ("FGA)", Feature Group B ("FGB"), Feature
           Group C ("FGC"), Feature Group D ("FGD"), Toll Free Service, 700 and
           900 access. Switched Access service does not include traffic
           exchanged between LECs for purpose of local exchange interconnection.

101.       "Switched Access Meet Point Billing" means a billing arrangement used
           when two or more LECs jointly provide a Switched Access service over
           Meet Point Trunks, with each LEC receiving an appropriate share of
           the revenues. The access services will be billed using Switched
           Access rate structures, and the LECs will decide whether a single
           bill or multiple bill will be sent. If the LECs cannot agree,
           multiple bills will be sent.

102.       "Tandem Switches" are switches that are used to connect and switch
           trunk circuits between and among Central Office Switches.

103.       "Toll Traffic" means IntraLATA traffic falling outside of the normal
           free calling area as defined by the Commission.

104.       "Toll Free Service" means service provided with any dialing sequence
           that invokes toll-free, i.e., 800-like, service processing. Toll Free
           Service includes calls to the Toll Free Service 800/888 NPA SAC
           codes.

105.       "Transit Rate" is the rate that applies to local and toll calls sent
           between a LEC and a CLC destined for a third-party LEC or CLC.

106.       "Trunk-Side" refers to a Central Office switch connection that is
           capable of, and has been programmed to treat the circuit as
           connecting to another switching entity, for example, another Central
           Office switch. Trunk-Side connections offer those transmission and
           signaling features appropriate for the connection of switching
           entities and cannot be used for the direct connection of ordinary
           telephone station sets.



                                       11
<PAGE>   34
                                                                    ATTACHMENT 1
                                                                         Page 12


107.       "Unbundled Services Cross Connector" "USCC" is a connection between
           an unbundled link, which terminates at the distribution frame, and
           the cross connect system, for the purpose of combining an unbundled
           link and PACIFIC unbundled transport when multiplexing is required.

108.       "Virtual Collocation" shall have the meaning set forth in 47 C.F.R.
           Sec. 51.5.

109.       "Voluntary Federal Customer Financial Assistance Programs" are
           Telecommunications Services provided to low-income subscribers,
           pursuant to requirements established by the appropriate state
           regulatory body.

110.       "Waste" means all hazardous and non-hazardous substances and
           materials which are intended to be discarded, scrapped, or recycled,
           associated with activities CLEC or PACIFIC or their respective
           contractors or agents perform at Work Locations. It shall be presumed
           that all substances or materials associated with such activities,
           that are not in use or incorporated into structures (including
           without limitation damaged components or tools, leftovers,
           containers, garbage, scrap, residues or by products), except for
           substances and materials that CLEC, PACIFIC or their respective
           contractors or agents intend to use in their original form in
           connection with similar activities, are Waste. "Waste" shall not
           include substances, materials or components incorporated into
           structures (such as cable routes) even after such components or
           structure are no longer in current use.

111.       "Wire Center" denotes a building or space within a building which
           serves as an aggregation point on a given carrier's network, where
           transmission facilities and circuits are connected or switched.
           PACIFIC Bell's Wire Center can also denote a building in which one or
           more Central Offices, used for the provision of Exchange Services and
           access services, are located. However, for purposes of collocation,
           Wire Center shall mean those points eligible for such connections as
           specified in FCC Docket No.91-141, and rules adopted pursuant
           thereto, as modified by subsequent FCC decisions.

112.       "Wireless Service Provider or "WSP" means a provider of Commercial
           Mobile Radio Services ("CMRS") e.g., cellular service provider,
           Personal Communications Services provider, or paging service
           provider.

113.       "Work Locations" means any real estate that CLEC or PACIFIC, as
           appropriate, owns, leases or licenses or in which it holds easements
           or other rights to use, or does use, in connection with this
           Agreement.



                                       12
<PAGE>   35



                                  ATTACHMENT 2

                                    ACRONYMS




<PAGE>   36

ATTACHMENT 2

                                    ACRONYMS


<TABLE>
<CAPTION>
       ACRONYM          DEFINITION
<S>                     <C>

       ACRONYM          DEFINITION
         AAA            American Arbitration Association
         AIN            Advanced Intelligent Network
         ALI            Automatic Location Identification/
         AMA            Automated Message Accounting
         AMI            Alternate Mark Inversion
         ANSI           American National Standards Institute
         ARPM           Average Revenue Per Message
        APTOS           Automated Pricing, Terminals, Options and Services
         ATIS           Alliance for Telecommunications Industry Solutions
         ATM            Asynchronous Transfer Mode
         B8ZS           Bipolar 8 Zero Substitution
         BICI           Broadband Inter-Carrier Interface
         BITS           Building Integrated Timing Supply
       BLV/BLVI         Busy Line Verification/Interrupt
         BOSS           Billing & Ordering Support System
         BRCS           Business and Residential Customer Service
          C             Network Element Combination
        C-DTTA          Combination of Dedicated Transport & Tandem
        C-LPLS          Combination of Loop & Local Switching
          C-            Combination Local Service, Common Transport Signaling, Databases and/or
      LSCTSSDBTS        Tandem Switching
         CABS           Carrier Access Billing System
       CAMA ANI         Centralized Automatic Message Accounting - Automatic Number
                        Identification
         CAP            Competitive Access Provider
        CCITT           Consultative Committee on International Telegraph & Telephone
         CCS            Common Channel Signaling
        CCSNIS          Common Channel Signaling Network Interface Specification
        CESAR           Customer's Enhanced System for Access Requests
         CIC            Carrier Identification Code
        CLASS           Custom Local Area Signaling Service
       CLC/CLEC         Competitive Local Exchange Carrier
         CLEO           Cleopatra (subsystem of CESAR)
         CLFI           Common Language Facility Interface
         CLLI           Common Language Location Identifier
         CMDS           Centralized Message Distribution Systems
         CMIP           Coded Mark Inversion Protocol
          CO            Central Office
         CPE            Customer Premises Equipment
</TABLE>



<PAGE>   37

ATTACHMENT 2

<TABLE>
<S>                     <C>
         CPN            Calling Party Number
         CRDD           Customer Requested Due Dates
          CT            Common Transport
          CY            Current Year
          D4            Digital Channel Bank Type 4
          DA            Directory Assistance
         DACS           Digital Access Crossconnect Systems
          DB            Database
          DB            Service Central Points/Databases
         DCC            Data Communications Channel
         DCS            Digital Cross-Connect System
          DF            Distribution Frame
         DID            Direct Inward Dialing
         DLC            Digital Loop Carrier
         DLCI           Data Link Connection Identifier
        DMOQs           Direct Measures Of Quality
          DN            Directory Numbers
        DN-RI           Directory Number - Route Index
         DS-1           Digital Signal Level One
         DS-3           Digital Signal Level Three
         DS0            Digital Signal Level Zero
         DSN            Data Set Name
         DSX            Digital Cross Connect
          DT            Dedicated Transport
         DTMF           Dual-Tone Multi Frequency
          E             Network Element
         E&M            Ear & Mouth Signaling
         E-LP           Element Loop
         EAMF           Equal Access Multi-Frequency
        EBCDIC          Extended Binary-Coded Decimal Interexchange Code
         EBI            Electronic Bonding Interface
         EFT            Electronic Fund Transfer
          EI            Electronic Interface
         EICC           Expanded Interconnection Cross Connect
         EMR            Exchange Message Record
          EO            End Office
         ESF            Extended Super Frame
         ESL            Essential Service Line
         ESN            Emergency Service Number
         ETTR           Estimated Time To Repair
         FCC            Federal Communications Commission
         FDI            Feeder Distribution Interface
</TABLE>

                                       3

<PAGE>   38

ATTACHMENT 2

<TABLE>
<S>                     <C>

          FN            Fiber Node
         FOC            Firm Order Confirmation
         FRF            Frame Relay Forum
         FUNI           Framebased User To Network Interface
         GTT            Global Title Translation
         HDT            Host Digital Terminal
         HFC            Hybrid Fiber Coax
       HFC-HDT          Hybrid Fiber Coax - Host Digital Terminal
          ID            Remote Identifiers
         IEC            Interexchange Carrier
         IECs           Interexchange Carriers
         IEEE           Institute Of Electrical And Electronic Engineers
         IISP           Interim Interswitch Signaling Protocol
         ILEC           Incumbent Local Exchange Carrier
          IN            Intelligent Network
         INA            Integrated Network Access
         INP            Interim Number Portability
         ISC            Interconnection Services Center
         ISDN           Integrated Services Digital Network
        ISDNUP          Integrated Services Digital Network User Part
         ISNI           Intermediate Signal Network Identifier
         ISO            International Standardization Organization
         ISUP           Integrated Services Userpart
         ITU            International Telecommunications Union
         IVMS           Interswitch Voice Messaging Service
         LARG           LIDB Access Routing Guide
         LASS           Local Area Signaling Services
         LATA           Local Access Transport Area
          LC            Loop Concentrator/Multiplexor
         LCC            Line Class Code
          LD            Loop Distribution
         LEC            Local Exchange Carrier
        LEC DA          LEC Directory Assistance
       LEC SCE          LEC Service Creation Environment
       LEC SCP          LEC Service Control Point
       LEC SMS          LEC Service Management System
       LEC SSP          LEC Service Switching Point
         LERG           Local Exchange Carrier Routing Guide
          LF            Loop Feeder
        LFACS           Loop Facilities Assignment and Control System
         LGX            Lightguide Cross-Connect
         LIDB           Line Information Data Base
</TABLE>

                                       4

<PAGE>   39

ATTACHMENT 2

<TABLE>
<S>                     <C>

       LIDB/AS          Line Information Data Base Administrative System
      LI-OFFICE         Local Interconnection Office
         LMI            Local Management Interface
         LNP            Local Number Portability
          LP            Loop
        LRECL           Logical Record Length
         LRN            Local Routing Number
          LS            Local Switching
         LSNE           Local Switching Network Element
         LSO            Local Serving Office
        LSSGR           LATA Switching Systems Generic Requirements
         MDF            Main Distribution Frame
         MDU            Multiple Dwelling Unit
       MDU/BCL          Multiple Dwelling Unit/Business Customer Location
        MECAB           Multiple Exchange Carrier Billing
        MECOD           Multiple Exchange Carriers Ordering And Design
          MF            Multi-Frequency
         MIB            Management Information Base
         MLT            Mechanized Loop Tests
         MOP            Methods Of Procedure
         MOS            Modified Operator Services
         MOU            Minutes Of Use
          MR            Modification Request
         MRVT           MTP Routing Verification Test
         MSAG           Master Street & Address Guide
         MTP            Message Transfer Port
         NANP           North American Numbering Plan
         NDM            Network Data Mover
         NEBS           Network Equipment Building System
          NI            Network Interface Device
         NID            Network Interface Device
         NIU            Network Interface Unit
         NMS            Network Management System
         NNI            Network To Network Interface
         NPA            Numbering Plan Area
         NVT            Network Validation Test
          OA            Operator Assistance
         OAM            Operation And Maintenance
        OAM&P           Operations Administration Maintenance & Provisioning
         OBF            Ordering & Billing Forum
          OC            Optical Carrier
         OC3            Optical Carrier Level 3
</TABLE>

                                       5

<PAGE>   40

ATTACHMENT 2

<TABLE>
<S>                     <C>

         ODS            Optical Distribution
         OLI            Originating Line Indicator
         OMAP           Operations, Maintenance & Administration Part
         ORT            Operational Readiness Test
          OS            Operator Services
         OSS            Operations Support Systems
        OSSGR           Operator Services Systems Generic Requirements
         PBSM           Pacific Bell Service Manager
         PBX            Private Branch Exchange
         PDH            Plesiochronous Digital Hierarchy
         PEC            Primary Exchange Carrier
         PIC            Primary Interexchange Carrier
         PLU            Percent Local Usage
         PNP            Permanent Number Portability
         POI            Point Of Interface
         POI            Points Of Interconnection
         POT            Point Of Termination
         POTS           Plain Old Telephone Service
        PREMIS          Premise Information System
         PRI            Primary Rate Interface
         PSAP           Public Safety Answering Point
         PUC            Public Utilities Commission
         RAO            Regional Accounting Office
         RCF            Remote Call Forwarding
        RECFM           Record Format
          RI            Route Index
        RI-PH           Route Index - Portability Hub
         ROW            Right Of Way
         RPC            Regional Processing Center
         RSM            Remote Switch Module
          RT            Remote Terminal
         SAC            Service Area Code
         SAG            Street Address Guide
         SCCP           Signaling Connection Control Point
         SCE            Service Creation Environmental
         SCP            Service Control Points
         SDH            Synchronous Digital Hierarchy
        SECAB           Small Exchange Carrier Access Billing
          SL            Signaling Link Transport
        SMDI-E          Standard Message Desk Interface - Enhanced
         SMS            Service Management System
         SNI            Simple Network Interface
</TABLE>

                                       6

<PAGE>   41

ATTACHMENT 2

<TABLE>
<S>                     <C>
         SNMP           Simple Network Management Protocol
        SONET           Synchronous Optical Network
         SORD           Service Order Retrieval And Distribution
         SPOC           Single Point Of Contact
         SPOI           Signaling Point Of Interconnection
         SRVT           SCP Routing Verification Test
          SS            SS7 Message Transfer & Connection Control
         SS7            Signaling System 7
         SSP            Switching Services Port
         STP            Signaling Transfer Point
         STS            Synchronous Transport Signal
        STS-1           Synchronous Transport Signal Level 1
         STSn           Synchronous Transport Signal Level N
       SWF-DSI          Switched Functional DS1 Service Capability
         T1.5           T Carrier Transport @ 1.544 mb
          T3            T Carrier Transport @ 45 mb
         T&M            Time & Material
         TCAP           Transaction Capabilities Application Port
         TDEV           Time Deviation
         TDI            Tie Down Information
       TIA/EIA          Telecommunications Industries Association/Electronic Industries
                        Association
          TR            Technical Requirements
          TS            Tandem Switching
         TSG            Trunk Sub-Group
         TSGR           Transport System Generic Requirements
        TSLRIC          Total Service Long Run Incremental Cost
         TSP            Telecommunications Services Priority
         UNI            User to Network Interface
         USCC           Unbundled Service Cross Connect
          VB            Variable Block
         VCI            Virtual Channel Identifier
          VF            Voice Frequency
         V&H            Vertical & Horizontal
         WDM            Wavelength Division Multiplexing
         WSP            Wireless Service Provider
         WTN            Working Telephone Number
</TABLE>

                                       7
<PAGE>   42
ATTACHMENT 3



                                  ATTACHMENT 3

                         ALTERNATIVE DISPUTE RESOLUTION

                         ATTACHMENT 3: TABLE OF CONTENTS



<TABLE>
<S>                                                                           <C>
ALTERNATIVE DISPUTE RESOLUTION

1       Purpose.................................................................1

2.      Exclusive Remedy........................................................1

3.      Informal Resolution of Disputes.........................................2

4.      Initiation of an Arbitration............................................2

5.      Governing Rules for Arbitration.........................................2

6.      Appointment and Removal of Arbitrator...................................3

7.      Duties and Powers of the Arbitrator.....................................3

8.      Discovery...............................................................4

9.      Privileges..............................................................4

10.     Location of Hearing.....................................................4

11.     Decision................................................................4

12.     Fees....................................................................4

13.     Confidentiality.........................................................5

14.     Service of Process......................................................5
</TABLE>



<PAGE>   43

                                                                    ATTACHMENT 3
                                                                          Page 1



                         ALTERNATIVE DISPUTE RESOLUTION

1.      PURPOSE

        This Attachment 3 is intended to provide for the expeditious,
        economical, and equitable resolution of disputes between PACIFIC and
        CLEC arising under this Agreement.

2.      EXCLUSIVE REMEDY

2.1     Except for disputes or matters (i) for which the total value of the
        amount in controversy exceeds Twenty Five Million Dollars ($25,000,000),
        (ii) for which this Agreement or the Telecommunications Act of 1996
        specifies a particular remedy or procedure, (iii) for which a Party
        seeks injunctive relief and/or specific performance in any Court of
        competent jurisdiction, or (iv) which are covered by the Billing
        Disputes provisions contained in Attachment 13 (Connectivity Billing and
        Recording), informal resolution and arbitration under the procedures
        provided herein shall be the exclusive remedy for all disputes between
        PACIFIC and CLEC arising out of this Agreement or its breach. PACIFIC
        and CLEC agree not to resort to any court, agency, or private group with
        respect to such disputes except in accordance with this Attachment.

2.1.1   If, for any reason, certain claims or disputes are deemed to be
        nonarbitrable, the non-arbitrability of those claims or disputes shall
        in no way affect the arbitrability of any other claims or disputes.

2.1.2   If, for any reason, the FCC or any other federal or state regulatory
        agency exercises jurisdiction over and decides any dispute related to
        this Agreement, or to the Act, or to any tariff and, as a result, a
        claim is adjudicated in both an agency proceeding and an arbitration
        proceeding under this Attachment 3, the following provisions shall
        apply:

2.1.2.1 To the extent required by law, the agency ruling shall be binding upon
        the parties and shall take precedence over any contrary ruling of the
        arbitrator for those matters within the jurisdiction and authority of
        such agency.

2.1.2.2 The arbitration ruling rendered pursuant to this Attachment 3 shall be
        binding upon the parties for purposes of establishing their respective
        contractual rights and obligations under this Agreement.

3.      INFORMAL RESOLUTION OF DISPUTES

3.1     Prior to initiating an arbitration pursuant to the American Arbitration
        Association ("AAA") rules, as described below, the parties to this
        Agreement shall submit any dispute between PACIFIC and CLEC for
        resolution to an Inter-Company Review Board consisting of one
        representative from CLEC at the Director-or-above level and one
        representative from PACIFIC at the Vice-President-or-above level (or at
        such lower level as each Party may designate).




                                       1
<PAGE>   44

                                                                    ATTACHMENT 3
                                                                          Page 2



3.2     The Parties may enter into a settlement of any dispute at any time The
        Settlement Agreement shall be in writing, and shall identify how the
        Arbitrator's fee for the particular proceeding, if any, will be
        apportioned.

3.3     At no time, for any purposes, may a Party introduce into evidence or
        inform the Arbitrator of any statement or other action of a Party in
        connection with negotiations between the Parties pursuant to the
        Informal Resolution of Disputes provision of this Attachment 3.

4.      INITIATION OF AN ARBITRATION

        If the Inter-Company Review Board is unable to resolve the dispute
        within 30 days (or such longer period as agreed to in writing by the
        Parties) of such submission, and the Parties have not otherwise entered
        into a settlement of their dispute, either Party may initiate an
        arbitration in accordance with the AAA rules.

5.      GOVERNING RULES FOR ARBITRATION

        The rules set forth below and the rules of the AAA shall govern all
        arbitration proceedings initiated pursuant to this Attachment; however,
        such arbitration proceedings shall not be conducted under the auspices
        of the AAA unless the Parties mutually agree. Where any of the rules set
        forth herein conflict with the rules of the AAA, the rules set forth in
        this Attachment shall prevail.

6.      APPOINTMENT AND REMOVAL OF ARBITRATOR

6.1     A sole Arbitrator (the "Arbitrator") will preside over each dispute
        submitted for arbitration under this Agreement.

6.2     The Parties shall appoint each Arbitrator. Each Arbitrator will serve
        until a decision is rendered. Each appointment will be made by mutual
        agreement in writing within thirty (30) days after the Parties have
        initiated an arbitration proceeding (or such longer period as the
        Parties may mutually agree to in writing).

6.3     In the event that an Arbitrator resigns or becomes unable to discharge
        his or her duties, the Parties shall, by mutual written Agreement,
        appoint a replacement Arbitrator within thirty (30) days after such
        resignation, removal, or inability, unless a different time period is
        mutually agreed upon in writing by the Parties. Any matters pending
        before the Arbitrator at the time he or she resigns, is removed, or
        becomes unable to discharge his or her duties, will be assigned to the
        replacement Arbitrator as soon as the replacement Arbitrator is
        appointed.

6.4     In the event that the Parties do not appoint an Arbitrator within the
        time limit set forth in Section 6.2 of this Attachment 3, or a
        replacement Arbitrator within the time limit set forth in Section 6.3 of
        this Attachment 3, either Party may apply to AAA for appointment of such
        Arbitrator. Prior to filing an application with the AAA, the Party
        filing such



                                       2
<PAGE>   45

                                                                    ATTACHMENT 3
                                                                          Page 3



        application shall provide ten (10) days prior written notice to the
        other Party to this Agreement.

7.      DUTIES AND POWERS OF THE ARBITRATOR

7.1     The Arbitrator shall receive complaints, and other permitted pleadings,
        oversee any discovery which is permitted, administer oaths and subpoena
        witnesses pursuant to the United States Arbitration Act, hold hearings,
        issue decisions, and maintain a record of proceedings. The Arbitrator
        shall have the power to award any remedy or relief that a court with
        jurisdiction over this Agreement could order or grant, including,
        without limitation, the awarding of damages, pre-judgement interest, or
        imposition of sanctions for abuse or frustration of the arbitration
        process, except that the Arbitrator may not award injunctive relief,
        punitive damages or any remedy rendered unavailable to the Parties
        pursuant to Section 10.3 of this Agreement.

7.2     The Arbitrator shall not have the authority to limit, expand, or
        otherwise modify the terms of this Agreement.

8.      DISCOVERY

        There shall be no discovery except for the exchange of documents deemed
        necessary by the Arbitrator to an understanding and determination of the
        dispute. PACIFIC and CLEC shall attempt, in good faith, to agree on a
        plan for document discovery. Should they fail to agree, either PACIFIC
        or CLEC may request a joint meeting or conference call with the
        Arbitrator. The Arbitrator shall resolve any disputes between PACIFIC
        and CLEC, and such resolution with respect to the need, scope, manner,
        and timing of discovery shall be final and binding.

9.      PRIVILEGES

        Although conformity to certain legal rules of evidence may not be
        necessary in connection with arbitrations initiated pursuant to this
        Attachment, the Arbitrator shall, in all cases, apply the
        attorney-client privilege and the work product immunity doctrine.

10.     LOCATION OF HEARING

        Unless both Parties agree otherwise, any hearings shall take place in
        San Francisco, California.

11.     DECISION

        The Arbitrator's decision and award shall be final and binding, and
        shall be in writing unless the Parties mutually agree in writing to
        waive the requirement of a written opinion. Judgment upon the award
        rendered by the Arbitrator may be entered in any court having
        jurisdiction thereof. Either Party may apply to the United States
        District Court for the district in which the hearing occurred for an
        order enforcing the decision.




                                       3
<PAGE>   46
                                                                    ATTACHMENT 3
                                                                          Page 4



12      FEES

12.1    The Arbitrator shall, in his or her discretion, apportion the
        Arbitrator's fees and expenses to reflect the relative success of each
        Party. In accordance with Section 3.2. of this Attachment 3, in the
        event that the Parties settle a dispute before the Arbitrator reaches a
        decision with respect to that dispute, the Settlement Agreement must
        specify how the Arbitrator's fees for the particular proceeding will be
        apportioned.

12.2    In an action to enforce or confirm a decision of the Arbitrator, the
        prevailing Party shall be entitled to its reasonable attorneys' fees,
        costs, and expenses necessarily incurred in the enforcement proceedings
        without regard to the local rules of the district in which the suit is
        brought.

13.     CONFIDENTIALITY

13.1    PACIFIC, CLEC, and the Arbitrator will treat the arbitration proceeding,
        including the hearings and conferences, discovery, or other related
        events, as confidential, except as necessary in connection with a
        judicial challenge to, or enforcement of, an award, or unless otherwise
        required by an order or lawful process of a court or governmental body.

13.2    In order to maintain the privacy of all arbitration conferences and
        hearings, the Arbitrator shall have the power to require the exclusion
        of any person, other than a Party, counsel thereto, or other essential
        persons.

13.3    To the extent that any information or materials disclosed in the course
        of an arbitration proceeding contains proprietary or confidential
        information (Confidentiality Information) of either Party, it shall be
        safeguarded in accordance with Section 19 of the Agreement. However,
        nothing in Section 19 of the Agreement shall be construed to prevent
        either Party from disclosing the other Party's Confidential Information
        to the Arbitrator in connection with or in anticipation of an
        arbitration proceeding. In addition, the Arbitrator may issue orders to
        protect the confidentiality of proprietary information, trade secrets,
        or other sensitive information.

14.     SERVICE OF PROCESS

        Service may be made by submitting one copy of all pleadings and
        attachments and any other documents requiring service to each Party and
        one copy to the Arbitrator. Service shall be deemed made (i) upon
        receipt if delivered by hand; (ii) the next business day if sent by
        overnight courier service; or (iii) upon confirmed receipt if
        transmitted by facsimile. If service is by facsimile, a copy shall be
        sent the same day by hand delivery or overnight courier service.

14.1    Service by CLEC to PACIFIC and by PACIFIC to CLEC at the address
        designated for delivery of notices in this Agreement shall be deemed to
        be service to PACIFIC or CLEC, respectfully.






                                       4
<PAGE>   47



                                  ATTACHMENT 4

                         DIRECTORY LISTING REQUIREMENTS





<PAGE>   48

                                                                    Attachment 4
                                                                          Page 1



                                  ATTACHMENT 4

                         DIRECTORY LISTING REQUIREMENTS



1.      GENERAL

        PACIFIC shall make available to CLEC, for CLEC Customers,
        nondiscriminatory access to its telephone number and address directory
        listings ("Directory Listings"), under the following terms and
        conditions:

2.      WHITE AND YELLOW PAGE LISTINGS

        PACIFIC publishes and distributes white pages directories through its
        wholly owned subsidiary PBD, as its agent for the white pages. PBD also
        publishes and distributes yellow pages directories. With respect to
        those directories, upon receipt of the necessary customer information
        from CLEC, PACIFIC will include, at no charge, a standard, basic listing
        (i) of CLEC's residence customers in the appropriate white pages
        directory and, (ii) of CLEC's business customers in the appropriate
        white pages and yellow pages directories. Additionally, CLEC's customers
        each will have delivered to them at no charge one copy of appropriate
        white and yellow pages directories. Where an CLEC Customer has two
        numbers for a line due to the implementation of interim Local Number
        Portability; the second number shall be considered part of the one White
        Pages basic listing. PACIFIC shall permit CLEC Customers the option of
        not having a published White Pages listing; this option will be provided
        at the same price PACIFIC charges its end user customers for the same
        option. PACIFIC shall include in its master subscriber list database all
        Subscriber Listing Information for CLEC Customers; PACIFIC's use of CLEC
        Subscriber Listing information is subject to Section 6 of this
        Attachment 4.

3.      DIRECTORIES

3.1     Upon receipt of the necessary customer information from CLEC, PACIFIC
        shall deliver Directory Listings in book form ("Telephone Directories")
        to each of CLEC's exchange service Customers with or without charge on
        the same basis that it delivers Telephone Directories to its own
        customers with or without charge. There is no limit on the total number
        of directories that may be delivered by PACIFIC. Timing of such delivery
        and the determination of which Telephone Directories shall be delivered
        (whether by customer address, NPNNXX or other criteria), and the number
        of Telephone Directories to be provided per customer, shall be provided
        under the same terms that PACIFIC delivers Telephone Directories to its
        own local service customers.

3.2     PACIFIC shall make available recycling services for Telephone
        Directories to CLEC Customers under the same terms and conditions that
        PACIFIC makes such services available to its own local service
        customers.



<PAGE>   49

                                                                    Attachment 4
                                                                     Page 2 of 3



4.      DIRECTORY LISTING CRITERIA

        The general terms relating to white and yellow page listings and
        non-published listings are set forth in PACIFIC's Schedule Cal.P.U.C.
        No. 175T, Sec. 93. Information relating to paid advertising, publication
        schedules and coverage of specific directories may be obtained by CLEC
        from PBD. PACIFIC's listing handbook will be available in the CLC
        Handbook. PACIFIC will update the CLC Handbook as product offerings or
        product process changes are made. The changes will be available
        automatically to CLEC through LI-OFFICE. Until such time as PACIFIC's
        Listings Handbook is available through LI-OFFICE, PACIFIC shall provide
        an updated paper copy of the CLC Listings Handbook on a quarterly basis
        starting not later than ten (10) days after the Effective Date of this
        Agreement. This Listing Handbook update will include all changes to the
        directory listing criteria.

5.      CUSTOMER INFORMATION LISTING

        In areas where CLEC provides (or plans to provide service within the
        next 12 months) exchange service, PACIFIC shall include, in the Customer
        Guide section of each Telephone Directory, not less than one full page
        of information about CLEC services, including addresses and telephone
        numbers for CLEC Customer service. A maximum of two pages will be
        provided without charge to CLEC. Pages in excess of two will be charged
        by PACIFIC in accordance with the nondiscriminatory rates contained in
        PACIFIC's Schedule Cal P.U.C. tariff No. 175-T, Sec.9.2 ("Customer Guide
        Service Tariff"). The form and content of such customer information
        section shall be determined by CLEC and shall be provided by CLEC to
        PACIFIC. However neither Party's content can contain puffery or rate
        comparisons with other companies. At CLEC's option, the form and content
        of this customer information may vary per community directory.

6.      SALE OF CLEC SUBSCRIBER LISTING INFORMATION

        PACIFIC will include Subscriber List Information of published CLEC local
        exchange customers in PACIFIC's Telephone Directory Reproductions Rights
        Service, unless instructed in writing by CLEC not to release Subscriber
        List Information to independent directory publications. PACIFIC will
        include the Subscriber List Information of CLEC local exchange customers
        in PACIFIC's voice and electronic
        Directory Assistance Services.

        Section 2 notwithstanding and subject to the following conditions, CLEC
        may direct PACIFIC not to release CLEC's Customers' Subscriber List
        Information to independent directory publications if the Parties first
        agree:

                1)      on the timing and method for CLEC to specify which CLEC
                        Customer Subscriber List Information is not to be
                        included in sales to independent directory publications;
                        and,





<PAGE>   50


                2)      on the appropriate charge for listing such CLEC
                        Customers in PACIFIC's directories

        If the Parties can not agree on the timing, method or price the Parties
        shall use the Alternative Dispute Resolution Process set forth in
        Attachment 3.




                                       3
<PAGE>   51
                                  ATTACHMENT 5

                              LOCAL SERVICES RESALE



<PAGE>   52
Attachment 5
2


                              LOCAL SERVICES RESALE

1.      TELECOMMUNICATIONS SERVICES PROVIDED FOR RESALE

        1.1    This Attachment describes services which PACIFIC shall make
               available to CLEC for resale pursuant to this Agreement. This
               list of services is neither all inclusive nor exclusive. All
               Telecommunications Services or offerings of PACIFIC which are to
               be offered for resale at wholesale rates pursuant to the Act,
               regulations thereunder, and relevant Commission decisions, are
               subject to the terms herein, even though they are not
               specifically enumerated or described. PACIFIC shall also provide
               Support Functions and Service Functions, as set forth in Sections
               4 and 5 of this Attachment 5. The Telecommunications Services,
               Service Functions and Support Functions provided by PACIFIC
               pursuant to this Agreement for resale to CLEC are collectively
               referred to as "Local Service."

        1.2    The rights, obligations and duties set forth in this Attachment
               are subject to the Act, regulations thereunder and relevant
               Commission decisions.

2.      GENERAL TERMS AND CONDITIONS FOR RESALE

        2.1    PRICING

               The prices charged to CLEC for Local Service are set forth in
               Attachment 8 of this Agreement. All Telecommunications Services,
               including without limitation, promotions of more than 90 days
               duration, shall be available to CLEC at wholesale rates as
               specified in Attachment 8, and shall be no less favorable than
               the wholesale rates made available by PACIFIC to similarly
               situated CLCs; provided, however, pursuant to section 252 of the
               Act, implementing regulations and any court decisions applicable
               thereto, PACIFIC shall make available to CLEC, without
               unreasonable delay, any Local Service contained in any agreement
               to which PACIFIC is a party that has been filed and approved by
               the Commission. CLEC shall be subject to the same term
               commitments, volume commitments, and prohibitions against end
               user aggregation to satisfy volume discounts as apply to
               PACIFIC's retail customers and the resale discount set forth in
               Attachment 8 shall be applied to CLEC on a customer-by-customer
               basis. In no event shall CLEC be required to agree to volume or
               term commitments (other than those which may be applicable to
               PACIFIC's end user customers) as a condition for obtaining Local
               Service at wholesale rates.

        2.2    RESALE RESTRICTIONS

                      To the extent consistent with applicable rules and
               regulations of the FCC and the Commission, including, without
               limitation, Decision 96-03-020 of the Commission, CLEC may resell
               Local Services to provide Telecommunications Services. PACIFIC
               will not impose unreasonable or discriminatory conditions or


<PAGE>   53
Attachment 5
3



               limitations on the resale of its Telecommunications Services.
               Services that PACIFIC has grandfathered or grandfathers in the
               future may only be resold to grandfathered subscribers.

        2.3    DIALING AND SERVICE PARITY; NUMBER PORTABILITY

               2.3.1  Unless technically infeasible, for resold services,
                      PACIFIC shall ensure that all CLEC Customers experience
                      the same dialing parity as similarly-situated PACIFIC
                      customers.

               2.3.2  For resold services, PACIFIC shall ensure that all CLEC
                      Customers experience the same service levels as similarly
                      situated PACIFIC customers, and, unless technically
                      infeasible, that there is no loss of features or
                      functionalities, including, but not limited to: same dial
                      tone and ringing; same capability for either dial pulse or
                      touch tone recognition; flat and measured services; speech
                      recognition as available; same extended local free calling
                      area; 1+ IntraLATA toll calling; InterLATA toll calling
                      and international calling; 500, 700, 800, 900, 976 and
                      Dial Around (IOXXX) Services; and restricted collect and
                      third number billing.

        2.4    CHANGES IN RETAIL SERVICE

               PACIFIC will notify CLEC of any changes in the terms and
               conditions under which it offers Telecommunications Services at
               retail to subscribers who are not telecommunications service
               providers or carriers, including, but not limited to, the
               introduction of any new or discontinuance of any features,
               functions, services, or promotions or the discontinuance of
               current features or services, at least sixty (60) days prior to
               the effective date of such change; provided, however, that with
               respect to terms and conditions contained in a contract between
               PACIFIC and one of its end users, PACIFIC shall notify CLEC of
               changes in such terms and conditions immediately upon signing any
               amendment to such contract.

        2.5    PRIMARY LOCAL EXCHANGE CARRIER SELECTION

               PACIFIC shall apply the principles set forth in Section 64.1100
               of the FCC Rules (47 C.F.R. Section 64.1100) to the process for
               end-user selection of a primary local exchange carrier. PACIFIC
               shall not require a written letter of authorization from the
               customer in order to process an CLEC order for Local Service for
               the customer; provided, however, that if CLEC requests a
               customer's service record, the provisions of Section 5.5.1 of
               this Attachment shall apply.


<PAGE>   54
Attachment 5
4



3.      REQUIREMENTS FOR SPECIFIC SERVICES

        3.1    CENTREX REQUIREMENTS

               3.1.1  At CLEC's option, CLEC may purchase the entire set of
                      CENTREX features or a subset of any one or any combination
                      of such features. The CENTREX Service provided for resale
                      will meet the following requirements:

                      3.1.1.1   All deployed features and functions of CENTREX
                                Service offered to any PACIFIC customer, whether
                                offered under tariff or otherwise, shall be
                                available to CLEC, where deployed, for resale,
                                without any customer class restrictions other
                                than those which may be imposed by applicable
                                orders of the FCC or the Commission, including,
                                without limitation, Commission Decision
                                96-03-020.

                      3.1.1.2   PACIFIC shall provide to CLEC a list of all
                                CENTREX features and functions offered by
                                PACIFIC within ten (10) days of the Effective
                                Date of this Agreement.

                      3.1.1.3   All service levels and features of CENTREX
                                Service provided by PACIFIC for resale by CLEC
                                shall be at parity to those provided to
                                PACIFIC's end user customers.

                      3.1.1.4   CLEC shall pay a one time, non-recurring charge,
                                as set forth in Attachment 8 of this Agreement
                                to pay for the cost of suppressing the need for
                                CLEC Customers to dial "9" ("Assumed Dial 9")
                                when placing calls outside the CENTREX System.
                                CLEC recognizes that there are certain problems
                                with Assumed Dial 9 on Centrex but such problems
                                would also be experienced by a PACIFIC Centrex
                                customer using Assumed Dial 9.

                      3.1.1.5   CLEC may utilize Automatic Route Selection
                                ("ARS").

        3.2    CLASS AND CUSTOM FEATURES REQUIREMENTS

               CLEC may purchase the entire set of CLASS and Custom Calling
               Features and functions where deployed by PACIFIC and made
               available to its end-user customers, or any one or any
               combination of such features, on a customer-specific basis,
               without restriction on the minimum or maximum number of lines or
               features that may be purchased. PACIFIC shall provide to CLEC a
               list of all such CLASS and Custom features and functions within
               ten (10) days of the Effective Date.


<PAGE>   55
Attachment 5
5



        3.3    LIFELINE SERVICE

               When a customer eligible for the Lifeline Service chooses to
               obtain Local Service from CLEC, PACIFIC shall flag the account as
               a Lifeline Service Customer and forward this information in
               electronic format in accordance with the procedures set forth
               herein. For the first ninety (90) days after the Effective Date
               of this Agreement, PACIFIC will make Lifeline Service available
               to CLEC at the wholesale discount specified in Attachment 8; for
               such period of time, CLEC will provide PACIFIC with information
               sufficient to permit PACIFIC to seek reimbursement from the
               Universal Lifeline Telecommunications Service Fund. Thereafter,
               CLEC will purchase basic local exchange service from PACIFIC,
               less the applicable wholesale discount, for resale to Lifeline
               Service customers (including customers who continue as CLEC
               Lifeline Service customers after the first ninety days) and will
               seek reimbursement from the Universal Lifeline Telecommunications
               Service Fund.

        3.4    INTERCEPT AND TRANSFER SERVICE

               Upon request from CLEC, PACIFIC will provide an intercept
               referral message that includes any new CLEC telephone number, for
               residential customers for three (3) months, and business
               customers for twelve (12) months, and PACIFIC will provide
               directory updates at the next publication. This intercept
               referral message shall be approved by CLEC and shall be similar
               in format to the intercept referral messages currently provided
               by PACIFIC for its own end users. Custom messages or extension in
               duration of the referral shall be subject to the charges set
               forth in Attachment 8.

        3.5    E9111911 SERVICES

               PACIFIC shall provide to CLEC, for CLEC Customers, E91 1/911 call
               routing to the appropriate Public Safety Answering Point
               (~'PSAP") with a parity level equal to that provided to PACIFIC's
               end-user customers. PACIFIC shall provide and validate CLEC
               Customer information to the PSAP. Upon request, PACIFIC will
               provide documentation to CLEC showing the correlation between
               PACIFIC's LSOs/rate centers to their E91 1 Selective Router
               tandems. At the price set forth in Attachment 8, PACIFIC will
               provide CLEC with access to PACIFIC's Master Street Address Guide
               (MSAG), in paper form and magnetic tape, for purposes of allowing
               CLEC to update and validate customer records in the E91 1
               Management System (E91 1 MS) database used to support E91 1/911
               services. PACIFIC will offer to CLEC a diskette version of the
               MSAG, when available; availability is expected in the first
               quarter of 1997. Nothing in this Agreement precludes CLEC from
               establishing and updating its own ALI/DMS data base


<PAGE>   56
Attachment 5
6



4.      SUPPORT FUNCTIONS FOR RESOLD SERVICES:

        4.1    The following Support Functions are offered in conjunction with a
               resold service: Operator Systems and Repair Services. Operator
               Systems consist of Directory Assistance and Operator Services.

        4.2    ROUTING TO OPERATOR SYSTEMS

               Where CLEC purchases Local Service, at CLEC's option, PACIFIC
               will provide the functionality and features required to modify
               the originating subscriber's line at PACIFIC's local switch (LS)
               or, when intraLATA presubscription is implemented, PACIFIC's
               Access Tandem (AT) to route all calls to the CLEC Network for
               Operator Systems. Such routing to CLEC's Operator Systems shall
               be available as specified in Attachment 6, Section 4.1.4.4.

               4.2.1  OPERATOR SYSTEMS: Operator Systems calls which, at CLEC's
                      option, are routed to PACIFIC will meet the following
                      requirements:

                      4.2.1.1   The calls will be unbranded, with no reference,
                                express or implied, to PACIFIC.

                      4.2.1.2   PACIFIC will provide Operator Systems to CLEC
                                which meets those which PACIFIC provides to
                                itself and its own end-user customers.

               4.2.2  DIRECTORY ASSISTANCE:

                      4.2.2.1   At CLEC's option, PACIFIC shall route local
                                Directory Assistance calls dialed via 411 by
                                CLEC Customers directly to the CLEC Network. The
                                Parties will meet and confer immediately after
                                the Effective Date of this Agreement in an
                                effort to find a solution which can be
                                implemented by April 30,1997 for PACIFIC to
                                route local Directory Assistance dialed via
                                (NPA) 555-1212 by CLEC Customers directly to the
                                CLEC Network. In the event the Parties are
                                unable to agree within forty-five (45) days of
                                the Effective Date on a solution, the Parties
                                shall submit any dispute to Alternative Dispute
                                Resolution as set forth in Attachment 3.

                      4.2.2.2   PACIFIC will include the CLEC Customer's listing
                                in its Directory Assistance database as part of
                                the Service Order process. PACIFIC will honor
                                CLEC Customer's preferences for listing status,
                                including non-published and unlisted, as noted
                                on the Service Order Request or similar form and
                                will ensure that the listing appears as the
                                subscriber requested in the PACIFIC database
                                which is used to perform Directory Assistance
                                functions. Performance Standards associated with
                                this service are set forth in


<PAGE>   57
Attachment 5
7



                                Attachment 17 and are incorporated by this
                                reference. PACIFIC will provide Directory
                                Assistance service to CLEC that equals the
                                Directory Assistance Service PACIFIC provides to
                                itself and its own end users.

        4.3    OPERATOR SERVICES

               4.3.1  PACIFIC will provide the full range of Operator Services,
                      at the rates set forth in Attachment 8, including, but not
                      limited to, collect, person to person, station to station,
                      bill-to-third party, busy line verification and busy line
                      interrupt, handicapped caller assistance and emergency
                      call assist.

                      4.3.1.1   At CLEC's option, and consistent with the
                                implementation schedule set forth in Attachment
                                6, Section 4.1.4.4, PACIFIC shall route local
                                Operator Services calls (0+, 0-) dialed by CLEC
                                Customers directly to the CLEC Local Operator
                                Services platform. Such traffic shall be routed
                                over trunk groups specified by CLEC which
                                connect PACIFIC end offices and the CLEC Local
                                Operator Services platform, using standard
                                Operator Services dialing protocols of 0+ or

                      4.3.1.2   PACIFIC will provide the functionality and
                                features within its local switch (LS) to route
                                CLEC customer dialed 0- and 0+ IntraLATA calls
                                to the CLEC designated trunk on the Main
                                Distributing Frame (MDF) or Digital Cross
                                Connect (DSX) panel via Modified Operator
                                Services Signaling (MOSS) Feature Group C
                                signaling. In addition and at CLEC's request,
                                when intraLATA presubscription is implemented,
                                PACIFIC will provide the functionality and
                                features within its Access Tandem to route CLEC
                                customer dialed 0- and 0+ IntraLATA calls to the
                                CLEC designated trunk on the Main Distributing
                                Frame (MDF) or Digital Cross Connect (DSX) panel
                                via Feature Group D signaling. In all cases,
                                PACIFIC will provide post-dial delay at least
                                equal to that provided by PACIFIC for its end
                                user customers.

                      4.3.1.3   PACIFIC will warm-line transfer any CLEC
                                customer requesting rate information to CLEC, as
                                follows:

                                4.3.1.3.1   Warm-line transfers without charge:
                                            PACIFIC will warm-line transfer any
                                            CLEC customer requesting intraLATA
                                            rate information (except calling
                                            plan information), at no charge to
                                            CLEC.

                                4.3.1.3.2   Warm-line transfers at tariffed
                                            rate: PACIFIC will warm-line 
                                            transfer any CLEC customer 
                                            requesting


<PAGE>   58
Attachment 5
8



                                             interLATA, interstate or
                                             international rate information, as
                                             well as intraLATA calling plan
                                             information, and charge CLEC the
                                             tariffed rate for
                                             carrier-to-carrier warm-line
                                             transfers.

               4.3.2  Repair Calls:

                      Either Party shall refer repair calls (e.g., 611) dialed
                      by the other Party's end-user customer to the 800/888
                      number supplied by the other Party for the other Party's
                      repair center.

               4.3.3  Non-discriminatory Treatment:

                      All direct routing capabilities described herein shall
                      permit CLEC Customers to dial the same telephone numbers
                      for CLEC Directory 12/13/96 Assistance or Local Operator
                      that similarly-situated PACIFIC customers dial for
                      reaching equivalent PACIFIC services. Such
                      non-discriminatory dialing to reach CLEC's Directory
                      Assistance or Local Operator shall be available consistent
                      with the implementation schedule in Attachment 6, Section
                      4.1.4.4

               4.3.4  Emergency Calls:

                      PACIFIC, no later than ten (10) business days after the
                      Effective Date, shall provide to CLEC the emergency public
                      agency (e.g., police, fire, ambulance) telephone numbers
                      linked to each NPA-NXX. Such data will be transmitted via
                      the Electronic Interface described in Attachment 11, or by
                      an interim means agreed by the parties. PACIFIC will
                      electronically transmit to CLEC, in a timely manner, all
                      changes, alterations, modifications and updates to such
                      data. PACIFIC shall accurately transmit information
                      provided to PACIFIC by the emergency public agency, but
                      assumes no liability for the accuracy of such information.

        4.4    BUSY LINE VERIFICATION AND EMERGENCY LINE INTERRUPT

               Until such time that an electronic interface is made available by
               PACIFIC to access PACIFIC's data base for Operator Services, if
               CLEC has purchased the resale line without PACIFIC's Operator
               Services, PACIFIC will offer Operator-to-Operator BLV/BLVI to
               CLEC on a non-discriminatory basis, in accordance with LERG
               instructions. PACIFIC requires that a reciprocal BLV/BLVI network
               be established between PACIFIC and CLEC's operator service
               provider.


<PAGE>   59
Attachment 5
9



        4.5    ACCESS TO THE LINE INFORMATION DATABASE

               PACIFIC shall update and maintain CLEC Customer information in
               the Line Information Database LIDB in the same manner and on the
               same schedule that it maintains information in LIDB for PACIFIC
               customers.

        4.6    TELEPHONE LINE NUMBER CALLING CARDS

               Effective as of the date of an end-user's subscription to CLEC
               Service, PACIFIC will remove any PACIFIC-assigned telephone line
               calling card number (including area code) ("TLC") from the LIDB.

        4.7    CALL BLOCKING

               Upon CLEC's request, PACIFIC will provide blocking on a line by
               line basis of an CLEC Customer's access to any or all of the
               following call types: 900, 976, bill to third and collect, and
               such other call types for which PACIFIC provides blocking to
               similarly situated customers

        4.8    PAY PHONE SERVICES

               4.8.1  "Pay Phone Services" is defined by Section 276 of the Act
                      and any FCC and Commission regulations adopted thereto.
                      These services may include the provision of service from
                      public pay telephones, the provision of inmate telephone
                      service in correctional institutions, and the provision of
                      any ancillary services within the meaning of Section 276
                      of the Act.

               4.8.2  Pay phone lines are defined as the loop from the pay phone
                      set point of demarcation to the Serving Wire Center. Pay
                      phone lines are attached to coinless and coin pay phone
                      sets (e.g. PACIFIC's COPT service).

               4.8.3  PACIFIC will provide CLEC all retail telecommunications
                      functions and features provided by PACIFIC through pay
                      phone lines, in the same form, made available by PACIFIC
                      to customers for its pay phone lines customers (e.g. COPT
                      providers).

               4.8.4  Each Party will comply with Section 276 of the Act and FCC
                      regulations adopted thereunder in connection with
                      selection of carriers for intraLATA, interLATA and
                      international telephone services from pay phone sets.

5.      SERVICE FUNCTIONS

        5.1    ELECTRONIC INTERFACE

                      5.1.1 PACIFIC shall provide an interim electronic
                      interface known as Network Data Mover ("NDM)" for
                      transferring and receiving all Service Orders and related
                      information such as Firm Order Confirmations (FOC),
                      Jeopardies,


<PAGE>   60
Attachment 5
10


                      Rejects, Simple and Complex Completions. The NDM shall be
                      administered through a gateway that will serve as a single
                      point of contact for the transmission of data from CLEC to
                      PACIFIC, and from PACIFIC to CLEC. The requirements and
                      implementation of such a data transfer system are/will be
                      set forth in Attachment 11 and are incorporated by this
                      reference as though fully set forth herein.

               5.1.2  For the Long Term, PACIFIC and CLEC agree to adopt an
                      Electronic Bonding ("EB") standard to transmit and receive
                      Pre-Order, Order and Provisioning data in a "real time"
                      environment. Both companies agree that this solution is in
                      their mutual best interest and will negotiate in good
                      faith for the earliest possible deployment of an EB
                      standard, as set forth in Attachment 11. In the event the
                      parties are unable to reach agreement on implementation of
                      an EB standard, any unresolved issues will be resolved
                      pursuant to the Alternative Dispute Resolution procedures
                      in Attachment 3 to this Agreement.

        5.2    WORK ORDER PROCESSES

               5.2.1  PACIFIC shall ensure that all work order processes used to
                      provision Local Service to CLEC for resale meet the
                      service parity requirements set forth in this Agreement or
                      its Attachments

               5.2.2  Additional Service Ordering, Provisioning, Maintenance,
                      Billing and Customer Usage Data requirements and
                      procedures are set forth in Attachments 11.12, 13 and 14.

        5.3    POINT OF CONTACT FOR CLEC CUSTOMERS

               5.3.1  Except as otherwise provided in this Agreement, CLEC shall
                      be the single and sole point of contact for all CLEC
                      Customers.

               5.3.2  Each Party shall refer all questions regarding the other
                      Party's service or product directly to the other Party at
                      a telephone number specified by the other Party.

               5.3.3  Each Party shall ensure that all their representatives who
                      receive inquiries regarding the other Party's services:
                      (i) provide such numbers to callers who inquire about the
                      other Party's services or products; and (ii) do not in any
                      way disparage or discriminate against the other Party, or
                      its products or services.


<PAGE>   61
Attachment 5
11



5.4     SINGLE POINT OF CONTACT

        Each party shall provide the other party with a single point of contact
("SPOC") for all inquiries regarding the implementation of this Attachment. Each
Party shall accept all inquiries from the other Party and provide timely
responses.

5.5     PRE-SERVICE ORDER INFORMATION

        To facilitate the ordering of new service for resale or changes to such
service to an CLEC Customer ("Service Order"), PACIFIC shall provide, consistent
with the implementation schedule set forth in Section 5.1.1., CLEC's
representatives with gateway access to PACIFIC's PREMIS and APTOS information.
This will allow CLEC to perform functions such as, but not limited to, Telephone
Number Assignment, an LSO to address correlation, service and feature
availability by switch type and other such functions which are deemed necessary
to provide the customer with a common experience when dealing with CLEC. Through
PREMIS, APTOS, NDM or using other methods. PACIFIC shall comply with CLEC
requests to:

        5.5.1  Obtain customer information, including customer name, billing and
               residence address, billing telephone number(s), current
               participation in Voluntary Federal Customer Financial Assistance
               Program, Telephone Relay, and other similar services, and
               identification of PACIFIC features and services subscribed to by
               customer. The following additional terms shall apply to
               AT&T's access:

               5.5.1.1 For business customers, prior to accessing such
                       information, AT&T shall provide Pacific with a written or
                       electronic statement indicating that it has the
                       customer's approval (verbal or written) to receive such
                       information. Where accessing such information via an
                       electronic interface, AT&T shall have obtained an
                       authorization to become the end user's local service
                       provider. AT&T shall receive and retain such information
                       in conformance with the requirements of 47 USC 222 (and
                       implementing FCC decisions thereunder).

               5.5.1.2 For residence customers, prior to accessing such
                       information, AT&T shall, on its own behalf and on behalf
                       of PACIFIC, comply with all applicable requirements of
                       Section 2891 of the California Public Utilities Code and
                       47 USC 222 (and implementing FCC decisions thereunder),
                       and, where accessing such information via an electronic
                       interface, AT&T shall have obtained an authorization to
                       become the end user's local service provider. Accessing
                       such information by AT&T shall constitute certification
                       that AT&T is in compliance with the applicable
                       requirements of Section 2891 and Section 222 (and
                       implementing FCC decisions thereunder) and has complied
                       with the prior sentence. AT&T shall receive and retain
                       such information in conformance with the requirements of
                       47 USC 222 (and implementing FCC decisions thereunder).
                       Pursuant to Section 10 of this Agreement, AT&T agrees to
                       indemnify, defend and hold harmless PACIFIC against

<PAGE>   62
Attachment 5
12



                       any claim made by a residence customer or governmental
                       entity against PACIFIC or AT&T under Section 2891 or
                       Section 222 (and implementing FCC decisions thereunder)
                       or for any breach by AT&T of this Section."

        5.5.2  Obtain information on all features and Telecommunication services
               available, including new services, trial offers and promotions;

        5.5.3  Enter the CLEC Customer order for all desired features and
               services;

        5.5.4  Assign a telephone number (if the CLEC Customer does not have one
               assigned);

        5.5.5  Identify the appropriate primary directory for each end-user
               location;

        5.5.6  For single-line residential service, determine if a service call
               is needed to install the line or service;

        5.5.7  Identify "next available due date" for service installation;

        5.5.8  Provide service availability dates,

        5.5.9  Order local intraLATA toll service and enter CLEC Customer's
               choice of primary interexchange carrier on a single, unified
               order; and

        5.5.10 Suspend or terminate service to an CLEC Customer for nonpayment
               and restore service, as appropriate, at parity with PACIFIC's
               ability to suspend or terminate service.

5.6     PROVISIONING

        After receipt and acceptance of a service order, PACIFIC shall provision
such service order in accordance with the intervals and performance standards
set forth in Attachment 17 and as set forth below

        5.6.1  PACIFIC shall provide CLEC with service status notices, within
               mutually agreed-upon intervals. Such status notices shall include
               the following:

               5.6.1.1  Firm order confirmation, including service availability
                        date;

               5.6.1.2  Notice of service installation issued at time of
                        installation including any additional information, such
                        as material charges;

               5.6.1.3  Rejections/errors in Service Orders;

               5.6.1.4  Jeopardies and missed appointments;

               5.6.1.5  Charges associated with necessary construction


<PAGE>   63
Attachment 5
13



               5.6.1.6  Except for basic exchange service, order status at
                        critical intervals;

               5.6.1.7  Except for basic exchange service, test results, where
                        available, will be provided in a form mutually
                        agreeable.

        5.6.2  Where PACIFIC provides installation, PACIFIC shall advise an CLEC
               customer to notify CLEC immediately if the CLEC Customer requests
               a service change at the time of installation.

        5.6.3  PACIFIC shall provide provisioning support to CLEC during normal
               business hours (Monday through Friday, 8 a.m. to 5 p.m. PACIFIC
               time, excluding holidays).

        5.6.4  PACIFIC shall provide training for all PACIFIC employees who may
               communicate, either by telephone or face-to-face, with CLEC
               Customers, during the provisioning process. Such training shall
               instruct the PACIFIC employees not to disparage or discriminate
               against CLEC, its products or services, and shall comply with the
               branding requirements of this Agreement.

5.7     MAINTENANCE

        Maintenance shall be provided in accordance with the requirements and
standards set forth in Attachment 12. Maintenance will be provided by PACIFIC in
accordance with the service parity requirements set forth in this Attachment.

5.8     PROVISION OF CUSTOMER USAGE DATA

        PACIFIC shall provide the Customer Usage Data recorded by the PACIFIC.
Such data shall include CLEC Customer usage data for Local Service, including
both local and intraLATA toll service, all in accordance with the terms and
conditions set forth in Attachment 14.

5.9     SERVICE/OPERATION READINESS TESTING

        5.9.1  In addition to testing described elsewhere in this Section,
               PACIFIC shall test the systems used to perform the following
               functions sixty (60) days prior to commencement of PACIFIC's
               provision of Local Service to CLEC, in order to establish system
               readiness capabilities.

               5.9.1.1  All interfaces between CLEC and PACIFIC work centers for
                        Service Order, Provisioning,

               5.9.1.2  Maintenance, Billing and Customer Usage Data;

               5.9.1.3  The process for PACIFIC to provide customer service
                        records;

               5.9.1.4  The installation scheduling process;


<PAGE>   64
Attachment 5
14



               5.9.1.5  Telephone number assignment;

               5.9.1.6  Procedures for communications and coordination between
                        CLEC SPOC and PACIFIC's Interconnection Service Center
                        (ISC);

               5.9.1.7  Procedures for transmission of Customer Usage Data; and

               5.9.1.8  Procedures for transmitting bills to CLEC for Local
                        Service.

        5.9.2  The functionalities identified above shall be tested in order to
               determine whether PACIFIC performance meets the applicable
               service parity requirements and other performance standards set
               forth herein. PACIFIC and CLEC shall make available sufficient
               technical staff to perform such testing. PACIFIC and CLEC
               technical staffs shall be available to meet as necessary to
               facilitate testing. PACIFIC and CLEC shall mutually agree on the
               schedule for such testing.

        5.9.3  At either Party's request, each Party shall provide to the other
               Party any results of the testing performed pursuant to the terms
               of this Attachment. Either Party may review such results and
               shall notify the other Party of any failures to meet the
               requirements of this Agreement.

        5.9.4  During the term of this Agreement, PACIFIC shall participate in
               cooperative testing requested by CLEC whenever it is deemed
               necessary by CLEC to ensure service performance, reliability and
               customer serviceability.

5.10    BILLING FOR LOCAL SERVICE

        5.10.1 PACIFIC shall bill CLEC for Local Service provided by PACIFIC to
               CLEC pursuant to the terms of this Attachment, and in accordance
               with the terms and conditions for Connectivity Billing and
               Recording in Attachment 13.

        5.10.2 PACIFIC shall recognize CLEC as the customer of record for all
               Local Service and will send all notices, bills and other
               pertinent information directly to CLEC unless CLEC specifically
               requests otherwise.



<PAGE>   65
                                  ATTACHMENT 6

            SPECIFICATIONS, SERVICE DESCRIPTIONS, AND IMPLEMENTATION
                     SCHEDULE FOR UNBUNDLED NETWORK ELEMENTS

<PAGE>   66
                                                                    Attachment 6
                                                                               1

                                  ATTACHMENT 6
            SPECIFICATIONS, SERVICE DESCRIPTIONS, AND IMPLEMENTATION
                    SCHEDULE FOR UNBUNDLED NETWORK ELEMENTS

1.      GENERAL: UNBUNDLED NETWORK ELEMENTS

        1.1.   Access To Unbundled Elements Shall Be Specified Herein and Not
               Presumed. The Network Elements offered under this Agreement shall
               be clearly specified in this Agreement or the attachments hereto.
               In no event will it be presumed that access to an Network Element
               is offered unless so specified. The methods of access to Network
               Elements described in this Attachment are not exclusive. PACIFIC
               will make available any other form of access requested by CLEC
               that is consistent with the Act and the regulations thereunder.
               Requests for Network Elements not specified in this Attachment
               shall be processed according to the process described in Section
               1.6 below.

        1.2    Consistent with the terms and conditions in this Attachment and
               the Act and regulations thereunder, PACIFIC shall offer each
               Network Element individually and in combination with any other
               Network Element or Network Elements in order to permit CLEC to
               combine such Network Element or Network Elements with another
               Network Element or other Network Elements obtained from PACIFIC
               or with network components provided by itself or by third parties
               to provide Telecommunications Services to its customers.

        1.3.   Consistent with the terms and conditions in this Attachment and
               the Act and regulations thereunder, PACIFIC will permit CLEC to
               interconnect CLEC's facilities or facilities provided by CLEC or
               by third parties with each of PACIFIC's Network Elements at any
               point designated by CLEC that is technically feasible.

        1.4.   CLEC may use one or more Network Elements to provide any
               Telecommunications Service. If CLEC requests a Combination not
               specified in this Agreement and for which the Parties have not
               agreed on methods and procedures for pre-ordering, ordering,
               provisioning, maintenance, billing and pricing, the Parties will
               meet and confer pursuant to Section 1 6, below, to establish the
               processes necessary to provide the combination. In the event the
               Parties can not agree on technical feasibility or any of the
               matters specified in the foregoing sentence, the Parties will
               follow the dispute resolution process set forth in Attachment 3
               to the Agreement.

        1.5.   For each Network Element, PACIFIC shall specify a demarcation
               point (e.g., an interconnection point at a Digital Signal Cross
               Connect or Light Guide Cross Connect panel or a Main Distribution
               Frame) and, if necessary, access to such demarcation point, which
               is mutually agreed to by the Parties. However, where PACIFIC
               provides contiguous Network Elements to CLEC, PACIFIC may
<PAGE>   67
                                                                    Attachment 6
                                                                               2

               provide the existing interconnections and no demarcation point
               shall exist between such contiguous Network Elements.

        1.6.   Attachments 6 and 7, together with Attachments 5,11,12, 13 and
               14, which collectively describe the Operating Support System
               Network Element, list the Network Elements and Combinations that
               CLEC and PACIFIC have identified as of the Effective Date of this
               Agreement. CLEC and PACIFIC agree that the Network Elements and
               Combinations identified in this Agreement are not exclusive. The
               process of requesting access to an Network Element or Combination
               not identified herein shall be as follows:

               1.6.1    Either Party may identify an Network Element or
                        Combination, that is not currently available in
                        PACIFIC's network, by providing written notice to the
                        other Party, which notice shall include a description of
                        the Network Element or Combination adequate to determine
                        technical feasibility and development requirements.

               1.6.2    The Parties agree to immediately work together to
                        determine (a) the technical feasibility of the request
                        and (b) the requirements to develop the request, and the
                        anticipated cost of developing the quote. If the Network
                        Element or Combination is identified by CLEC, PACIFIC
                        shall be allowed a commercially reasonable period of
                        time to evaluate the technical feasibility of the
                        request and the requirements to develop the requested
                        Network Element or Combination. Notwithstanding the
                        foregoing, if the Parties cannot agree within forty-five
                        (45) days (or such other period of time as may be
                        mutually agreeable), whether the Network Element or
                        Combination is technically feasible, or on the
                        requirements necessary to develop the Network Element or
                        Combination, the Parties shall use the alternate dispute
                        resolution process set forth in Attachment 3 to this
                        Agreement.

               1.6.3    The costs of developing the Network Element or
                        Combination, which includes, but is not limited to, the
                        cost of developing the quote, shall be recovered from
                        any entity which utilizes the Network Element or
                        Combination so identified, including PACIFIC and its
                        affiliates. In addition, CLEC shall pay its share of
                        PACIFIC's costs of developing any Network Element or
                        Combination, not identified in this Agreement
                        (including, but not limited to, the cost of developing
                        the quote) if CLEC requests development of the Network
                        Element or Combination but subsequently determines not
                        to purchase the Element or Combination. In all cases,
                        CLEC and PACIFIC shall meet and confer on the amount of
                        such costs, each Party's respective share of such costs,
                        and the method of recovery. In the event the Parties
                        cannot agree on the amount and method of recovery, the
                        Parties shall track their respective development costs
                        and will use the alternative dispute resolution process
                        set forth in

<PAGE>   68
                                                                    Attachment 6
                                                                               3


                        Attachment 3 to this Agreement. Any determination made
                        in alternative dispute resolution shall be subject to
                        modification by a subsequent decision of the Commission.
                        In no event shall either Party allow the pendancy of a
                        dispute concerning development costs to delay analysis
                        or implementation of the Network Element or Combination.

        1.7    Unless specified otherwise in this Attachment, PACIFIC will make
               the Network Elements identified in this Agreement, and all
               Combinations specified herein used by PACIFIC in its network,
               available on the Effective Date of this Agreement.

        1.8    The charge(s) for Network Elements requested pursuant to Section
               1.6 above shall be specified by amendment to Attachment 8.

        1.9    Implementation Costs Implementation costs for all Network
               Elements set forth in this Attachment will be determined and
               recovered as specified in Attachment 8.

2.      NETWORK INTERFACE DEVICE (NID)

        2.1    General Description and Specifications of the Network Element

               2.1.1    Description. NID is PACIFIC's terminal that is used to
                        connect the end user customer's inside wire with the
                        telephone network. In addition, the NID is the final
                        termination point, or DEMARC (demarcation point) in the
                        loop network where an end user customer connects its
                        inside wire to a telephone company's loop network.
                        Connection to PACIFIC's NID will permit CLEC to obtain
                        direct access to the end user customer's inside wire by
                        attaching its connecting facility directly to the same
                        screws or lugs being used by PACIFIC to serve the
                        customer.

               2.1.2.   Types of NID. Under this Agreement, PACIFIC shall offer
                        access to two general types of NIDs:

                      2.1.2.1. Simple NID, which is a standard network interface
                               (SNI) the use of which permits the end user's
                               customer wiring to be isolated from PACIFIC's
                               network.

                      2.1.2.2. Complex NID, which is a building terminal where
                               end user customer wiring terminates on PACIFIC's
                               network.

        2.2.   Form of Access

                        2.2.1. Form of Access Applicable to All NIDs In all
                        cases (simple and complex), access to PACIFIC's NID will
                        only be available through a separate NID provided by
                        CLEC, and a separate connecting facility running either
                        between the two NIDs, or, where a connector block is
                        available, between CLEC's NID and the connector block
                        where the end

<PAGE>   69
                                                                    Attachment 6
                                                                               4


                        user customer's inside wire is attached. Unless
                        otherwise agreed in writing, CLEC shall be responsible
                        for providing its own NID and its own connecting
                        facility. In addition, CLEC shall be responsible for
                        obtaining all approvals necessary to place its NID and
                        the connecting facility on the owner's premise. Nothing
                        in the agreement precludes the end-user customer from
                        re-terminating its inside wire to the CLEC-provided NID
                        thus eliminating the need for NID-to-NID cross-connects.
                        In addition, should CLEC purchase a combination of
                        PACIFIC's NID and PACIFIC's Links, a separate CLEC NID
                        will not be required.

               2.2.2.   Ordering. CLEC shall order access to PACIFIC's unbundled
                        NID by placing an order, requesting access to the
                        unbundled NID with PACIFIC's Local Interconnection
                        Service Center (LISC).

               2.2.3.   When orders for simple unbundled NIDs are received by
                        PACIFIC, PACIFIC shall make available to CLEC
                        information, where available, indicating the type of NID
                        currently employed (e.g., SNI, MPOE with Binding post
                        identification, MPOE with color code identification, or
                        neither); When orders for complex unbundled NIDs are
                        received by PACIFIC, PACIFIC shall make available to
                        CLEC information indicating the type of NID currently
                        employed ~ SNI, MPOE with Binding post identification,
                        MPOE with color code identification, or neither).

        2.3.   General Terms and Conditions

               2.3.1.   When CLEC purchases a combination of a PACIFIC NID and a
                        PACIFIC Link. Section 2.3.2 through 2.3.7, 2.3.10 and
                        2.4 will not be applied.

               2.3.2.   Dispatch. If the Parties agree that dispatch is required
                        (e.g., to clear or make available spare Binding posts in
                        the PACIFIC NID or to secure PACIFIC's facilities at the
                        premises), then PACIFIC will dispatch a service
                        technician to complete all necessary work at the
                        customer's premise to protect PACIFIC's facilities.
                        Dispatch charges as set forth in Attachment 8, shall
                        apply with each such order.

               2.3.3.   Protection of Facilities. In no case shall either Party
                        connect to the NID or tie down its connecting facility
                        directly over the other Party's facility without prior
                        approval of the other Party and without conditioning
                        having been performed to isolate each Party's network.
                        Furthermore, in no instance shall either Party attach
                        its connecting facility in any manner so as to cause
                        voltage or its own dial tone to occur on the other
                        Party's network.

<PAGE>   70
                                                                    Attachment 6
                                                                               5


               2.3.4.   Coordination. Unless requested by CLEC, no coordination
                        is provided. If CLEC requests coordination, charges will
                        be applied as specified in Attachment 8. In addition,
                        unless otherwise agreed by CLEC and PACIFIC, neither
                        Party shall access the other Party's NID unless the
                        owning Party's service technician is present, or unless
                        the owning Party has already made the necessary
                        modifications to isolate its network.

               2.3.5    SNI Conversion. In all residential or small business
                        locations where a protector is used to connect to the
                        end user customer's inside wire instead of a SNI, at
                        CLEC's option, either the protector will be replaced and
                        a SNI installed or CLEC will install its own SNI and
                        connect the customer's inside wire to the new SNI. If
                        CLEC requests PACIFIC to install a new SNI, PACIFIC and
                        CLEC agree that the placement of a SNI will benefit each
                        Party, and therefore the cost of installing the new SNI
                        will be shared equally by PACIFIC and CLEC. The charges
                        for new SNI installation are specified in Attachment 8.

               2.3.6.   Connector Blocks When connecting to a connector block,
                        CLEC and PACIFIC will ensure that PACIFIC's jumpers will
                        be completely disconnected and not left hanging free so
                        as to cause potential interference with other facilities
                        of CLEC, PACIFIC, or the end user customer.

               2.3.7.   Drops. Either Party shall be permitted to secure its
                        drop facility to its SNI by grounding same in an
                        appropriate manner. Upon disconnection of service to the
                        end user customer, either Party may leave its drop in
                        place until another LEC or CLC needs access to the NID
                        to provide service to the customer.

               2.3.8    Gaining Access the NID. The Parties each acknowledge and
                        agree that a special tool is necessary for access to
                        PACIFIC's side of the SNI. Neither Party shall attempt
                        to access any type of NID without the proper tool, and
                        any party accessing the SNI, protector, connector block,
                        or any other form of NID, shall exercise reasonable care
                        and sound technician practices so as to avoid damage to
                        the NID. Nothing in this section shall be construed to
                        allow either Party to connect its loops directly to the
                        other Party's NID.

               2.3.9    Tagging End User Customer Facilities. Upon request,
                        PACIFIC will dispatch a technician to tag the end user
                        customer's inside wire facilities on the customer's side
                        of the NID. In such cases, a dispatch charge shall
                        apply, as specified in Attachment 8.

               2.3.10.  Special Construction Charges. In the event any Special
                        Construction is required to implement this unbundled
                        element at any given location,

<PAGE>   71
                                                                    Attachment 6
                                                                               6


                        Special Construction charges, as defined in Attachment I
                        and set forth in Attachment 8 may apply.

        2.4    Rates CLEC agrees to pay NID rates as specified in Attachment 8.

        2.5    Implementation Schedule PACIFIC will make unbundled NIDs
               available no later than March 31,1997.

3.      LOOPS

        3.1.   General Terms and Conditions

               3.1.1.   The terms Loops and Links are synonymous.

               3.1.2    Use and Suitability of Loop Service. Unbundled loops may
                        not be used to provide any service that would degrade or
                        otherwise adversely affect PACIFIC's network services.

               3.1.3.   Assigned Telephone Number. CLEC, when not using
                        PACIFIC's switching capabilities, is responsible for
                        assigning any telephone numbers necessary to provide its
                        end users with Exchange Service.

        3.2    Types of Loops/Links

               3.2.1.   2-Wire or 4-wire Analog Basic Link. This PACIFIC
                        unbundled Network Element is Plain Old Telephone (POTS)
                        grade two-wire or 4-wire circuit or equivalent voice
                        frequency channel that supports analog transmission of
                        300-3000 Hertz (Hz) with loss no greater than 8.0 db
                        measured at 1004 Hz with 900 ohms at the central office
                        P01 and 600 ohms at the MPOE. In addition, coin
                        supervision and ground start signaling options are
                        available.

               3.2.2.   2-Wire or 4-wire Analog (Assured) Link. The PACIFIC
                        unbundled Network Element (2-wire or 4 wire) is a voice
                        frequency channel that supports analog transmission of
                        300-3000 Hertz ("Hz") with loss no greater than 5.5db
                        measured at 1004 Hz with 900 ohms at the central office
                        P01 and 600 ohms at the MPOE.

               3.2.3.   2-Wire Digital (ISDN/xDSL Capable) Link. This PACIFIC
                        unbundled Network Element (2-wire) is an ISDN capable
                        Link, which is an upgrade to the Basic Link for the
                        transmission of digital services having no greater loss
                        than 38db end-to-end, measured at 40,000 HZ with 135
                        ohms at the central office P01 and 135 ohms at the MPOE;
                        without loop repeaters, midspan repeaters may be
                        required. This Link will not have any load coils or
                        bridge taps within limits defined by the specification
                        applicable to the ISDN/xDSL Links. In addition, the ISDN
                        Capable Link, without midspan repeaters, will be used
                        for Link requests to support xDSL type transmission
                        rates.

<PAGE>   72
                                                                    Attachment 6
                                                                               7


        3.2.4. 4-Wire Digital (1.544 mbps Capable) Link. This PACIFIC unbundled
               Network Element (4-wire) is a 1.544 mbps capable Link which is an
               upgrade to the Basic Link. It will be conditioned with or without
               digital repeaters.

        3.2.5  2 Wire Copper Link. This offering (2 wire continuous copper loop
               from DF to MPOE, where facilities are available) is a physical
               link which can be used to support alarm type Direct Current (DC)
               service offerings. This Link will not have any load coils and
               bridge taps will be within limits. This 2-wire copper link will
               work with most DC alarm circuits.

        3.2.6  2 Wire Copper Switched Digital Link. This offering (2 wire
               continuous copper loop from DF to MPOE, where facilities are
               available) is a physical link which can be used when digital
               connectivity is required to the customer's premise having no
               greater loss than 31 db end-to-end, measured at 80,000 HZ with
               135 ohms at the central office P01 and 135 ohms at the MPOE. This
               link will not have any load coils and bridge taps will be within
               limits.

        3.3.   Form of Access Interconnection to loops will be at the central
               office P01. Access to unbundled loops may occur in the following
               manner:

               3.3.1    By purchasing an EISCC to CLEC's collocated equipment in
                        the same PACIFIC Central Office, or

               3.3.2.   By purchasing PACIFIC's unbundled transport service, or
                        Special Access service at rates as specified in
                        Attachment 8.

               3.3.3    Combining Links and PACIFIC's LSNE. In addition to the
                        connections described above, CLEC may combine PACIFIC's
                        Links with PACIFIC's LSNE.

               3.3.4    Combining NID, Links and PACIFIC's LSNE. In addition to
                        the connections described above, CLEC may combine
                        PACIFIC's NID, Links and LSNE

        3.4.   Responsibilities of the Parties

               3.4.1.   For the first six months after CLEC's first order for a
                        Link, CLEC shall provide to PACIFIC forecasts of the
                        number of Links at a LATA level. Thereafter, CLEC shall
                        make a good faith effort to provide such forecasts to
                        PACIFIC at a wire center level. This includes associated
                        additional line ("ADL") requirements when PACIFIC's
                        primary residential POTS service is not to be
                        disconnected in the establishment of Link Service. CLEC
                        shall provide such forecasts to PACIFIC on a semi-annual
                        basis.

<PAGE>   73
                                                                    Attachment 6
                                                                               8


               3.4.2.   CLEC will provide end-user customer listing information
                        for the purpose of providing E91 1 Service.

        3.5.   Implementation Schedule

               3.5.1    2-Wire Basic and 2-Wire Assured Link Service will be
                        available on an unbundled basis on the Effective Date
                        from all PACIFIC Wire Centers on a first-come,
                        first-served basis, applicable to all carriers,
                        including PACIFIC, and subject to the availability of
                        PACIFIC's facilities and facilities at the MPOE at the
                        premise of the CLEC end user customer. However, certain
                        of PACIFIC's geographical areas are currently served
                        solely via integrated digital loop carrier ("IDLC"). In
                        such areas PACIFIC will make reasonable efforts to
                        provide Links using copper facilities. Where copper
                        facilities are not available, PACIFIC will use other
                        methods to provide such Links and Special Construction
                        charges may apply.

               3.5.2    Combination of PACIFIC's NID and its 2-Wire Basic/2-Wire
                        Assured Link Service will be available on the Effective
                        Date.

               3.5.3    Implementation of other Link products. 2-Wire Digital
                        (ISDN/xDSL Capable) Links and 4-Wire Digital (1.544 mbps
                        Capable) Links shall be available on March 31,1997.
                        4-Wire Analog Basic Links, 4-Wire Analog Assured Links
                        and 2-Wire Copper Links will be available on March
                        31,1997; prior to this date, these facilities will be
                        installed on a case-by-case basis pursuant to the mutual
                        agreement of the Parties, provided, the provisioning
                        intervals in Attachments 11 and 17 will not apply to
                        these facilities until the Parties agree on
                        pre-ordering, ordering, provisioning and maintenance for
                        these facilities.

               3.5.4    Implementation of Links combined with LSNE (Options A, B
                        and C). Links may be combined with LSNE simultaneously
                        with the availability of the particular LSNE Option
                        pursuant to the LSNE implementation schedule specified
                        in this Attachment.

        3.6    Rates CLEC agrees to pay the rates for Loops specified in
               Attachment 8. There will be no separate charge for NID when CLEC
               purchases an unbundled loop.

4.      UNBUNDLED SWITCHING

        4.1.   Unbundled Local Switching Network Element (LSNE). PACIFIC shall
               make available unbundled switching capacity, including dial
               tone, digit reception, access to signaling, deployed AIN
               capabilities and vertical features, with routing to interoffice
               trunks and interoffice transport provided by PACIFIC or to
               designated trunk specified and purchased by CLEC. PACIFIC
               designates this service "Local Switching Network Element"
               (LSNE). In purchasing LSNE,

<PAGE>   74
                                                                    Attachment 6
                                                                               9


               CLEC must obtain a Line Side Port (including a telephone number
               and, at CLEC's option, a directory listing) for access to the
               switching functions and vertical features provided by the
               switch, and some designation of trunking for completion of
               calls, with the exception of intra-switch calls. All
               intra-switch calls are completed using PACIFIC's switch and no
               trunk designation is made for completion of such calls.

               4.1.1.   Types of charges

                      4.1.1.1. Line Port charges as set forth in Attachment 8.

                      4.1.1.2. Nothing in this Section 4 means that the vertical
                               features are included or excluded from the prices
                               for switching. The issue of the appropriate
                               charges for vertical features, if any, shall be
                               as specified in Attachment 8.

                      4.1.1.3. Any applicable directory assistance or operator
                               assistance charges as set forth in Attachment 8.

                      4.1.1.4. Usage sensitive (per minute of use) local
                               switching charges, as set forth in Attachment 8
                               and Attachment 18. Usage will be recorded in one
                               second increments. Usage seconds will be totaled
                               for the entire monthly bill and then rounded to
                               the next whole minute. Usage sensitive local
                               switching charges will be on a per minute of use
                               basis and applied to all originating and
                               terminating traffic, including, but not limited
                               to local, toll, E 911 calls, calls to time and
                               weather announcements, etc. PACIFIC will (where
                               feasible) measure and charge for all
                               non-conversation time (e.g., ringing, calls to
                               busy lines, intercept). Where non-conversation
                               time cannot be measured the Parties will mutually
                               agree on the appropriate measure and charge.

                      4.1.1.5  Charges for completion of interconnection traffic
                               (local and toll) shall be determined pursuant to
                               Attachment 18 at the rates set forth in
                               Attachment 8.

        4.1.2  Form of Line Port Access. Access to LSNE, as specified in Section
               4.1.3 may occur in the following manner:

                      4.1.2.1  LSNE Access, Cross-Connection Through
                               Collocation: From CLEC's collocation space, CLEC
                               may purchase an EISCC cross-connection to
                               PACIFIC's Line Side Port to obtain access to
                               LSNE.

                               4.1.2.2. Combining Links and LSNE: CLEC may
                               combine Links and PACIFIC's LSNE. Under this
                               scenario, CLEC shall not be required to purchase
                               a cross connection facility from PACIFIC's

<PAGE>   75
                                                                    Attachment 6
                                                                              10


                               central office distribution frame to the Line 
                               Side Port of the switch.

                      4.1.2.3. Combining Links, LSNE and Transport: CLEC may
                               combine Links (with or without a NID), the LSNE,
                               and transport facilities, which can be dedicated,
                               shared or common transport from PACIFIC. Under
                               this scenario. CLEC shall not be required to
                               purchase any cross-connection facility from
                               PACIFIC.

        4.1.3. Types of LSNE

                      4.1.3.1  Option A: PACIFIC-Provided Interoffice Transport
                               and PACIFIC-Provided Operator and Directory
                               Assistance Services. In this configuration, CLEC
                               purchases a Line Port and receives a telephone
                               number and directory listing, switching capacity,
                               switch features including deployed AIN
                               capabilities and completion to PACIFIC's
                               interoffice trunks for all multiple-switch local
                               calls, calls to operator and directory assistance
                               services, E-91 1, intraLATA toll calls and
                               switched access calls. In this configuration,
                               intra-switch calls are also provided through
                               PACIFIC's switch. PACIFIC will be solely
                               responsible for design and engineering of the
                               trunks under this option. In addition, PACIFIC
                               will provide all 0-, operator and directory
                               assistance services under this option. PACIFIC's
                               switching capacity will be programmed to allow
                               routing to and from CLEC's line ports, including
                               operator and directory assistance calls, to
                               PACIFIC's network.

                             4.1.3.1.1 Rates The charges set forth in Section
                                             4.1.1 shall apply.

                      4.1.3.2. Option B: PACIFIC-Provided Interoffice Transport
                               with Customized Routing-Simple and with Operator
                               and/or Directory Assistance (DA) Services
                               Unbundled from PACIFIC's Line Port Switching
                               Capacity. In this configuration, CLEC purchases a
                               Line Port and receives a telephone number and a
                               directory listing, Switching Capacity, switch
                               features (including deployed AIN capabilities)
                               and completion to PACIFIC's interoffice trunks
                               for all multiple-switch local calls, E-91 1
                               calls, intraLATA toll and Switched Access calls.
                               In this configuration, intra-switch calls are
                               also provided through PACIFIC's switch. With the
                               exception of trunks for operator and/or directory
                               assistance services, or both, PACIFIC will be
                               solely responsible for design and engineering of
                               its interoffice trunks. CLEC will be required to
                               order separate trunks for operator services
                               provided by itself or a third party identified by
                               CLEC to provide such services.

<PAGE>   76
                                                                    Attachment 6
                                                                              11


                               Transport facilities may be purchased from
                               PACIFIC, or connected to CLEC's facilities
                               through a collocation cage by obtaining a cross
                               connection from PACIFIC. CLEC will be responsible
                               for design and engineering of the operator and/or
                               directory assistance trunks under this option,
                               and shall also be responsible for designating the
                               transport facilities it desires, if any, from
                               PACIFIC and the points where these facilities
                               shall terminate. In addition, CLEC shall be
                               responsible for providing all operator and/or
                               directory assistance services. PACIFIC's
                               switching capacity will be programmed for CLEC to
                               allow routing of calls to PACIFIC's shared
                               network, except operator and/or directory
                               assistance calls will be routed to the trunks
                               designated by CLEC. In this configuration, the
                               following charges specified in Attachment 8 will
                               apply:

                             4.1.3.2.1  The charges set forth in 41.1 above.

                             4.1.3.2.2  Non recurring switch programming charges
                                        as specified in Attachment 8.

                             4.1.3.2.3  Trunk Port Cross Connect Charge (EISCC).

                                        (a) If CLEC provides its own dedicated
                                        transport to CLEC designated DA and/or
                                        operator platform, a cross-connection
                                        charge from the unbundled switch element
                                        to CLEC's designated collocation cage
                                        located in the same office shall apply
                                        at the rates set forth in Attachment 8.

                                        (b) There will be no cross-connect
                                        charge if CLEC selects dedicated
                                        transport from PACIFIC's intrastate
                                        Special access tariffs or PACIFIC's
                                        unbundled dedicated transport tariff for
                                        connection to CLEC's designated P01.

                      4.1.3.3. Option C: Customized Routing - Complex for CLEC
                               Traffic Using Routes Designated by CLEC This
                               option is Customized Routing for CLEC traffic in
                               the manner designated by CLEC, and it requires
                               that special, customized routing programming be
                               provided by CLEC. This option will include all of
                               the features listed in Options A and B. However,
                               with this Option, CLEC has the option of
                               directing traffic on an NPA-NXX basis to a Port
                               other than the standard used for PACIFIC's
                               routing. In this configuration, CLEC obtains one
                               or more Line Ports and receives a telephone
                               number and directory listing, switching capacity,
                               switch features, including deployed AIN
                               capabilities, and transport, that will permit the
                               completion of multiple-switch local calls, calls
                               to either operator or directory assistance
                               services, or

<PAGE>   77
                                                                    Attachment 6
                                                                              12


                               both, E-91 1 calls, intraLATA toll calls, and
                               either operator or directory assistance services,
                               or both, E-91 1 calls, intraLATA toll calls, and
                               Switched Access calls. In this configuration,
                               intra-switch calls will be provided through
                               PACIFIC's switch. Inter-switch calls will be
                               provided from either designated common or
                               dedicated transport facilities. CLEC will be
                               solely responsible for design and engineering of
                               any dedicated transport under this option.
                               PACIFIC will be solely responsible for design and
                               engineering of any PACIFIC-provided shared or
                               common transport used under this option.
                               Dedicated transport may be purchased from PACIFIC
                               or CLEC may provide its own. In this
                               configuration, the following charges will apply:

                             4.1.3.3.1. Rates The charges set forth in Section
                                              4.1.3.2 shall apply.

        4.1.4. Implementation Schedule

                      4.1.4.1. PACIFIC will make Option A available no later
                               than April 30,1997. CLEC can place orders for
                               Option A beginning March 1,1997. PACIFIC will
                               deploy Option A within forty-five (45) days after
                               CLEC's order for a particular switch, provided
                               that CLEC places orders for no more than fifty
                               (50) switches for Option A in any thirty (30) day
                               period.

                      4.1.4.2. PACIFIC will make Option B available no later
                               than April 30,1997. CLEC can place orders for
                               Option B beginning April 30,1997. Deployment of
                               Option B will be on a project specific basis as
                               mutually agreed by the Parties.

                      4.1.4.3. PACIFIC will make Option C available no later
                               than June 1, 1997. CLEC can place orders for
                               Option C beginning May 1,1997. PACIFIC will
                               deploy Option C within thirty (30) days after
                               CLEC's order for a particular switch, provided
                               that CLEC places orders for Option C for no more
                               than fifty (50) switches in any thirty (30) day
                               period. The rates in Section 4.1.3.3.1 shall
                               include the costs incurred in meeting this
                               implementation schedule.

                      4.1.4.4  PACIFIC will make direct routing of operator and
                               directory assistance as specified in Section 4.2
                               of Attachment 5 no later than April 30, 1997.
                               CLEC can place orders for direct routing
                               beginning on April 30, 1997. Deployment will be
                               on a project specific basis as mutually agreed by
                               the Parties.

        4.2.   Tandem Switching

<PAGE>   78
                                                                    Attachment 6
                                                                              13


               4.2.1.   General Description and Specifications of the Unbundled
                        Element PACIFIC will provide, subject to the terms and
                        conditions specified herein, the following unbundled
                        Tandem Switching:

                      4.2.1.1. Standard Tandem Switching Tandem Switching allows
                               use of the Tandem Switch itself for the
                               transmission of calls between two switches
                               connected to that tandem, without any customized
                               routing. PACIFIC's unbundled Tandem Switching
                               will permit access to the Tandem Switch to
                               originate a call to, or terminate a call from, a
                               CLC to a PACIFIC End Office, another LEC,
                               Wireless Service Provider, or another switch,
                               using the normal routing established in PACIFIC's
                               tandem.

                      4.2.1.2. Custom Tandem Switching. In addition to the
                               standard Tandem Switching capabilities, custom
                               Tandem Switching will allow CLEC to originate a
                               call through PACIFIC's tandem to a CLC, another
                               LEC, Wireless Service Provider, or another switch
                               using CLEC's own interoffice facilities. Custom
                               Tandem Switching consists of three options:

                             4.2.1.2.1 Option 1: Custom Basic--Use of PACIFIC's
                                       Shared Transport. This option uses
                                       screening that treats CLEC as a homing
                                       End Office. The Custom Basic unbundled
                                       Tandem Switching may use dedicated tandem
                                       trunk groups that allow full LATA-wide
                                       completion over PACIFIC's shared
                                       transport. [EMR records will need to be
                                       exchanged with ILECs who receive calls
                                       initiated from a CLC completing over
                                       PACIFIC's network.] Calls routed to CLEC
                                       will use normal LERG routing.

                             4.2.1.2.2 Option 2: Custom Simple--Use of PACIFIC's
                                       Common Transport This option uses
                                       screening that treats CLEC as an IEC. The
                                       Custom Simple unbundled Tandem Switching
                                       will use dedicated trunk groups towards
                                       PACIFIC's common transport that will
                                       limit calls to the single tandem serving
                                       area. This option is only able to use
                                       common transport in the terminating
                                       direction. Originating calls from
                                       PACIFIC's End Offices must use shared
                                       transport to the tandem. Custom Simple
                                       uses a Type 2A trunk port with unique
                                       screening capabilities to route traffic
                                       to common transport trunk groups.

                             4.2.1.2.3 Option 3: Custom Complex--Routing
                                       Designed to CLEC's Specifications. The
                                       Custom Complex tandem unbundled switching
                                       will use customized routing for calls

<PAGE>   79
                                                                    Attachment 6
                                                                              14


                                       sent from CLEC to PACIFIC's tandem that
                                       will be designed to CLEC's
                                       specifications, where technically
                                       feasible. The use of route advance or
                                       overflows with this option will not
                                       advance to or from dedicated trunk ports
                                       to PACIFIC common or shared transport.
                                       PACIFIC cannot bill the overflow.
                                       Notwithstanding the foregoing, the
                                       Parties will meet and confer immediately
                                       after the Effective Date of this
                                       Agreement in an effort to find a solution
                                       which can be implemented to enable
                                       PACIFIC to bill the overflow. In the
                                       event the Parties are unable to agree
                                       within forty-five (45) days of the
                                       Effective Date on a solution, the Parties
                                       shall submit any dispute to Alternative
                                       Dispute Resolution as set forth in
                                       Attachment 3.

                      4.2.1.3  When CLEC uses PACIFIC's LSNE (except where CLEC
                               requests Dedicated Transport using Options B or
                               C), use of the tandem is included in the common
                               transport charges set forth in Attachment 8.

               4.2.2    Implementation Schedule

                      4.2.2.1. Standard Tandem Switching as described herein
                               will be available as of the Effective Date of
                               this Agreement.

                      4.2.2.2  Customized Tandem Switching as described in
                               Options 1 and 2 will be available no later than
                               May 31, 1997. CLEC can place orders for
                               Customized Tandem Switching Options 1 and 2
                               beginning May 1,1997. PACIFIC will deploy
                               Customized Tandem Switching within thirty (30)
                               days after CLEC places an order, provided that
                               CLEC places no more than four (4) such orders in
                               any thirty day period. Option 3 is available
                               where technically feasible on a mutually
                               agreeable date based on CLEC's design
                               specifications.

               4.2.3    Tandem Switching Rate CLEC agrees to pay the Tandem
                        Switching rate listed in Attachment 8.

5.      UNBUNDLED INTEROFFICE TRANSMISSION FACILITIES (TRANSPORT)

        5.1    General Description and Specifications of the Network Element
               PACIFIC will make available, subject to the terms and conditions
               specified herein, the following unbundled transport facilities:

<PAGE>   80
                                                                    Attachment 6
                                                                              15


               5.1.1.   Entrance Facilities in Connection with Dedicated
                        Transport. PACIFIC will make available the following
                        entrance facilities, pursuant to the charges set forth
                        in Attachment 8, upon request of CLEC:

                        5.1.1.1. Connections between the PACIFIC's Wire Center
                                 that serves an CLEC switch and the CLEC switch.

                        5.1.1.2. Connections between PACIFIC's serving Wire
                                 Center and the Point of Presence of CLEC's
                                 IXC's switch.

               5.1.2    Dedicated Transport Is an interoffice transmission path
                        between CLEC designated locations. Such locations may
                        include PACIFIC Central Offices or other equipment
                        locations, CLEC network components, other carrier
                        network components or customer premises. Digital
                        Cross-Connect System (DCS) functionality is available as
                        an option which can be used in connection with Dedicated
                        Transport. PACIFIC will make available the following
                        dedicated connections, upon request of CLEC:

                        5.1.2.1. Connections between PACIFIC End Offices or
                                 between PACIFIC End Offices and PACIFIC serving
                                 Wire Centers;

                        5.1.2.2. Connections between a PACIFIC End Office and
                                 CLEC collocation space located in a distant
                                 PACIFIC End Office;

                        5.1.2.3. Connections between PACIFIC's End Office or
                                 Tandem Switch and an CLEC designated premise.

               5.1.3    Common Transport Common transport will be available
                        between PACIFIC End Offices and PACIFIC's Tandem Switch
                        and either Party's connecting End Office, Tandem
                        Switches or designated P01.

               5.1.4    Shared Interoffice Transport Shared transport will only
                        be available where CLEC purchases LSNE. Shared transport
                        provides call completion from a PACIFIC End Offices
                        where LSNE is purchased and the terminating PACIFIC End
                        Office or P01 where the call leaves PACIFIC's network.

                        5.1.4.1. Use of the tandem is included in the Shared
                                 Interoffice Transport charges set forth in
                                 Attachment 8.

        5.2    Form of Access

               5.2.1    Dedicated Transport. CLEC may order dedicated transport
                        from PACIFIC from the unbundled LSNE to any other point.

               5.2.2.   Common Transport. Access to common transport will be
                        available through interconnection at the access tandem.

<PAGE>   81
                                                                    Attachment 6
                                                                              16


               5.2.3    Shared Interoffice Transport. Access to shared transport
                        will only be available where CLEC purchases LSNE. The
                        Parties acknowledge that there is no physical shared
                        transport to unbundle between PACIFIC's End Office
                        switches and PACIFIC's End Offices and Tandem Switches,
                        and CLEC's interest is in the shared use of transport
                        between PACIFIC's switches and the associated underlying
                        performance characteristics. PACIFIC will make available
                        to CLEC shared transport as currently implemented within
                        PACIFIC's interoffice network. PACIFIC will engineer,
                        provision and maintain such shared interoffice transport
                        facilities and equipment under existing methods and
                        procedures.

               5.2.4.   Use of DCS. PACIFIC will make available the use of DCS
                        equipment, which is a separate unbundled Network
                        Element. When unbundled DCS is provided with unbundled
                        transport as a combination, it shall be available on
                        March 31,1997. When DCS is provided without transport,
                        it shall be available on May 30, 1997.

               5.2.5    CLEC may connect Links at PACIFIC's DF to unbundled
                        transport through a multiplexing, e.g., D4 channel bank,
                        DCS or Unbundled Services Cross Connect (USCC) at the
                        charges set forth in Attachment 8.

        5.3.   General Terms and Conditions

               5.3.1.   For dedicated transport, PACIFIC will provide transport
                        unbundled from switching and other services. Such
                        transport services will allow CLEC to send individual or
                        multiplexed switched and dedicated services between
                        PACIFIC's Wire Centers.

               5.3.2.   Dedicated transport will be available with the following
                        functionality or optional services:

                      5.3.2.1. Protection and restoration of equipment and
                               interfaces at parity with levels PACIFIC
                               maintains for its own transport facilities;

                      5.3.2.2. Compliance with Bellcore and industry standards
                               to the extent implemented in PACIFIC's transport
                               network

                      5.3.2.3. Redundant power supply or battery back-up to the
                               extent implemented in PACIFIC's transport
                               network;

                      5.3.2.4. Provisioning and maintenance performed to the
                               same extent such provisioning and maintenance is
                               performed on PACIFIC's own transport network.

               5.3.3.   Where deployed, PACIFIC will make available interoffice
                        transport services capable of interfacing on copper,
                        coaxial cable, and optical fiber

<PAGE>   82
                                                                    Attachment 6
                                                                              17


                        facilities. Consistent with current bundled offerings,
                        the interoffice transport services will be capable of
                        handling transmission rates ranging from voice grade up
                        through Optical Carrier ("OC")-48.

               5.3.4.   Transmission Levels. Where deployed, PACIFIC will make
                        dedicated transport available at the following speeds:
                        DS0, DS1, D53, and commercially available Optical
                        Carrier levels (e.g., OC-3/12/48).

        5.4.   Implementation Schedule. Unbundled transport will be available as
               of the effective date of this Agreement, except that unbundled
               transport combined with LSNE will be available simultaneously
               with the availability of the particular LSNE Option pursuant to
               the LSNE implementation schedule specified in this Attachment.
               Unbundled dedicated transport will be available on March 31,1997.

        5.5.   Rates. CLEC agrees to pay the transport rates specified in
               Attachment 8.

6.      SIGNALING AND DATABASES

        6.1.   Signaling Networks

        6.1.1. General Description and Specifications of the Unbundled Element.
               As described in this section, PACIFIC will make available
               interconnection to its SS7 signaling network to enable signaling
               necessary for call routing and completion. PACIFIC will also make
               available unbundled nondiscriminatory access to SS7 signaling
               links and PACIFIC's Signaling Transfer Points (STPs).

        6.2.   Form of Access and General Terms and Conditions

               6.2.1.   The Parties will interconnect their networks using SS7
                        signaling protocol as defined in Bellcore Technical
                        Reference GR-246, and GR-31 7 and GR-394 for ISDN User
                        Part (ISUP) for trunk signaling.

               6.2.2.   CLEC may establish CCS interconnections with PACIFIC
                        either directly or through a third party. CCS
                        interconnection, whether direct or by third party, shall
                        be pursuant to the PACIFIC Bell/Nevada Bell CCS network
                        interface specification document PUB L-780023-PB/NB,
                        which will be updated to include interconnection
                        interface specifications for unbundled signaling links
                        and access to PACIFIC's STPs. The Parties will cooperate
                        in the exchange of ISUP and Transaction Capabilities
                        Application Part (TCAP) messages to facilitate full
                        interoperability of CCS-based features between their
                        respective networks, including all CLASS features and
                        functions, to the extent each Party offers such features
                        and functions to its own end users.

               6.2.3    PACIFIC's current CCS/5S7 Interconnect questionnaire
                        will be revised to facilitate the exchange of routing
                        and network architecture

<PAGE>   83
                                                                    Attachment 6
                                                                              18


                        information between the Parties to provision unbundled
                        signaling links and STP access. The Parties shall
                        mutually exchange all S57 signaling parameters,
                        including Calling Party Number (CPN), and procedures
                        that are implemented within their SS7 networks as
                        identified in the CCS/557 Interconnect questionnaire
                        provided by PACIFIC's CLEC account team or other
                        mutually agreed process. All privacy indicators of the
                        Parties will be honored. Also, CLEC will provide their
                        SS7 network node, address information and identify the
                        SS7 services they request using the SS7 questionnaire.

               6.2.4    PACIFIC will make available to CLEC PACIFIC's signaling
                        links and access to PACIFIC's STPs or access to
                        PACIFIC's STPs with CLEC-provided signaling links to
                        provide capability to support call set-up and to support
                        CCS-based features being provided on the effective date
                        of this Agreement. Signaling links will be provisioned
                        at 56 Kbps, or at 1.5 Mbps if available.

               6.2.5.   PACIFIC will provide CLEC with access through PACIFIC's
                        STPs to the following elements connected to PACIFIC's
                        SS7 network: (1) PACIFIC's SS7-capable End Offices and
                        Access Tandem Switches; (2) third-party CLC switches;
                        (3) third-party CLC STPs, if the third-party CLC and
                        PACIFIC have STP-to-STP interconnection; and (4) PACIFIC
                        will provide CLC signaling links and/or access to
                        PACIFIC's STPs for signaling between CLC's switches or
                        between CLEC and third-party switches (including
                        unbundled switching elements) when CLEC's and/or
                        third-party's switches are interconnected to PACIFIC's
                        SS7 signaling network.

               6.2.6.   At CLEC's option, CLEC may connect its switches to
                        PACIFIC's STPs by means of "A" link access and may
                        connect CLEC STPs to PACIFIC's STPs by means of "D" link
                        access. PACIFIC will designate the STP pair for
                        interconnection, and CLEC will then designate the
                        Signaling Point of Interconnection ("SPOI") within the
                        STP pair.

               6.2.7.   All "A" links provided by PACIFIC or CLEC will consist
                        of two link sets, and "D" links will consist of four
                        link sets.

               6.2.8.   CLEC's SS7 links will be interconnected to PACIFIC's
                        STPs in the same manner that PACIFIC connects its links
                        to its own STPs. When CLEC connects its links to
                        PACIFIC's STP a Port charge will apply as specified in
                        Attachment 8; provided, when CLEC provides its own links
                        it must access PACIFIC's STP Port through a collocation
                        cage.

               6.2.9.   PACIFIC will provide to CLEC all the signaling link
                        functions, and all the Signaling Connection Control
                        Point ("SCCP") functions that are deployed in PACIFIC's
                        SS7 network.

<PAGE>   84
                                                                    Attachment 6
                                                                              19


               6.2.10.  PACIFIC's current CLC Handbook will be revised to
                        include ordering and provisioning procedures for
                        obtaining unbundled signaling links and/or STP access.

        6.3.   Implementation Schedule and Rates. SS7 STP interconnection is
               available in PACIFIC access tariffs today.

               6.3.1    Implementation will include testing consistent with
                        industry standards. Testing of SS7 interconnection shall
                        include completion of all tests described in PACIFIC's
                        CCS Network Interconnection Testing documents and
                        defined by the Internetwork Interoperability Test Plan
                        (IITP). These tests shall serve as the minimum amount of
                        testing required to ensure successful signaling network
                        internetworking.

               6.3.2.   Rates CLEC agrees to pay the signaling link charge
                        and/or signaling port charge listed in Attachment 8.

        6.4    Call-Related Databases

               6.4.1.   Toll Free Service Database (800/888)

               6.4.2    General Description and Specifications of the Unbundled
                        Element PACIFIC will provide access to its 800/888
                        database if CLEC requests such access from PACIFIC as
                        described below.

               6.4.3.   Form of Access

                      6.4.3.1. CLEC's query access to PACIFIC's toll free
                               service database (800/888) will be via
                               interconnection at PACIFIC's Regional or Local
                               STPs consistent with existing network interface
                               specifications. Specific terms for routing Toll
                               Free Services are addressed in Attachment 18.
                               PACIFIC's current CLC Handbook will be revised to
                               include ordering and provisioning procedures for
                               obtaining access to PACIFIC's 800/888 database.

               6.4.4.   Implementation Schedule Query access to 800/888 is
                        available today in PACIFIC's access tariffs.

               6.4.5.   Rates. CLEC agrees to pay the toll free service
                        (800/888) database query rate(s) as specified in
                        Attachment 8 when CLEC is the intraLATA service provider
                        for the toll free service customer.

        6.5.   Line Information Databases ("LIDB")

               6.5.1.   General Description and Specifications of the Unbundled
                        Element PACIFIC will provide access to LIDB through
                        interconnection at the STP. LIDB Service is provided by
                        PACIFIC to support alternate billing

<PAGE>   85
                                                                    Attachment 6
                                                                              20


                        services. LIDB provides access to billing validation
                        data (calling card and billed number screening) which
                        resides in PACIFIC's LIDB database for use with
                        alternate billing services, such as Calling Card,
                        Collect Calls, and Third Number Billing. LIDB will
                        receive and respond to American National Standards
                        Institute Signaling System 7 protocol queries as defined
                        in Bellcore publication TR-TSV-000905, and PACIFIC
                        publication PUBL-780023 PB/NB.

               6.5.2    At this time, PACIFIC has not implemented other LIDB
                        features such as Calling Name or Domestic Cards. If
                        PACIFIC offers Customer Name Address Message (CNAM)
                        capability, PACIFIC will offer this service to CLEC.

               6.5.3.   Form of Access

                        6.5.3.1. CLEC's query access to PACIFIC's LIDB database
                                 will be via interconnection at PACIFIC's
                                 Regional or Local STPs consistent with existing
                                 network interface specifications.

                        6.5.3.2. If CLEC uses PACIFIC's LIDB, CLEC will send
                                 queries to LIDB from an Operator Service System
                                 (OSS).

                        6.5.3.3. PACIFIC's current CLC Handbook will be revised
                                 to include ordering and provisioning procedures
                                 for obtaining access to PACIFIC's LIDB
                                 database.

               6.5.4.   Implementation Schedule Query access to LIDB will be
                        available as of the Effective Date of this Agreement.

               6.5.5.   Rates CLEC agrees to pay the LIDB rate as specified in
                        Attachment 8.

        6.6    Advanced Intelligent Network Databases ("AIN")

               6.6.1    General Description and Specifications of the Unbundled
                        Element: CLEC may purchase the entire set of Advanced
                        Intelligent Network ("AIN") features or functions, or
                        any one or any combination of such features or
                        functions, on a customer-specific basis. PACIFIC will
                        provide CLEC with query access to AIN databases to
                        support AIN services in two ways: from PACIFIC's
                        unbundled switch element or resold line; from CLEC's own
                        switch. PACIFIC will provide CLEC access to PACIFIC's
                        End-Office triggers when CLEC purchases PACIFIC's LSNE
                        and any available AIN services. AIN database access may
                        not be used to access other PACIFIC databases.

               6.6.2    Form of Access. CLEC's query access to PACIFIC's AIN
                        SCPs will be via interconnection at PACIFIC's Regional
                        or Local STPs consistent

<PAGE>   86
                                                                    Attachment 6
                                                                              21


                        with existing network interface specifications and using
                        messages conforming with Bellcore's Technical Reference
                        TR-NWT-001285. The requirements for these messages may
                        be modified by AIN access mediation (specifications not
                        yet available).

                      6.6.2.1  PACIFIC's current CLC Handbook will be revised to
                               include ordering and provisioning procedures to
                               obtain access to PACIFIC's AIN databases and/or
                               End-Office capabilities.

               6.6.3    General Terms and Conditions. PACIFIC will require
                        access mediation to prevent unauthorized changes or
                        access to data resident in its AIN database. Such access
                        mediation will also provide network management functions
                        to prevent CLEC traffic overloads from interfering with
                        PACIFIC's AIN SCP operation.

               6.6.4.   Implementation Schedule for Query Access to AIN Using
                        PACIFIC's Resold Basic Exchange Service Or PACIFIC's
                        LSNE PACIFIC will make available such unbundled query
                        access to AIN no later than March 31,1997.
                        Implementation will include testing consistent with
                        standards applicable to this database.

               6.6.5.   Implementation Schedule for Query Access to AIN Using
                        CLEC's Switch Through PACIFIC's STP Implementation of
                        query access to AIN using CLEC's switch through
                        PACIFIC's STP requires special work specific to each
                        request, and therefore implementation shall occur on a
                        case-by-case basis.

               6.6.6.   Rates. CLEC agrees to pay the AIN rates as specified in
                        Attachment 8.

7.      SERVICE MANAGEMENT SYSTEM ("SMS")

        7.1.   SMS For LIDB

               7.1.1    General Description and Specifications of the Unbundled
                        Element. PACIFIC will provide access to the Service
                        Management System for LIDB, referred to as the LIDB
                        Administrative System (LIDB/AS) if CLEC requests such
                        access. Access to LIDB/AS will allow CLEC to create,
                        modify, update or delete the end user line information
                        in PACIFIC's LIDB database for CLEC Customers when
                        PACIFIC is the carrier of record in the LERG. For an
                        CLEC end user, line information includes telephone
                        number and preassigned calling card PIN and billed
                        number screening data (collect and third number billing
                        indicators). PACIFIC's LIDB updates are processed
                        continuously through service order input to LIDB/AS,
                        which then updates LIDB.

               7.1.2.   Form of Access

<PAGE>   87
                                                                    Attachment 6
                                                                              22


                      7.1.2.1. PACIFIC will provide access to LIDB/AS in a
                               manner equivalent to how access is provided to
                               PACIFIC itself. CLEC shall have the ability to
                               create, modify, update, or delete information in
                               LIDB through service order processing, generated
                               through PACIFIC's Local Interconnection Service
                               Center (LISC) or electronic service order entry.

                      7.1.2.2. In the event CLEC requires an emergency update to
                               its end user line information in the LIDB
                               database, CLEC will be directed to PACIFIC's Data
                               Base Administration Center (DBAC) to process this
                               request. The DBAC organization provides
                               administrative support into LIDB/AS for PACIFIC's
                               business office organizations. This is the same
                               process used today by PACIFIC service
                               representatives to initiate emergency updates to
                               LIDB.

               7.1.3.   General Terms and Conditions

                      7.1.3.1. PACIFIC will process CLEC service order updates
                               to LIDB/AS in the same manner and time frames
                               that such updates are processed for PACIFIC
                               itself.

                      7.1.3.2. PACIFIC shall use the end user line information
                               of an CLEC subscriber only to update and maintain
                               LIDB and not for any other purpose.

                      7.1.3.3. CLEC may create, update, modify, or delete end
                               user line information of its own subscribers
                               through the issuance of service order activity.
                               CLEC shall not create, update, modify, or delete
                               end user line information of other carriers' end
                               users.

                      7.1.3.4. PACIFIC and CLEC will comply with the Privacy of
                               Customer Information requirements of Section 222
                               of the Act, with respect to information obtained
                               as a result of access to call related databases
                               and associated SMSs described in this Agreement.

               7.1.4.   Implementation Schedule

                      7.1.4.1  CLEC may currently update end user line
                               information in LIDB/AS through the service order
                               process. PACIFIC Bell will make available the
                               capability to allow provisioning and changes to
                               preassigned Personal Identification Number (PIN)
                               no later than March 31,1997.

               7.1.5.   Rates The SMS for LIDB is included in the LIDB query
                        rate specified in Attachment 8.

<PAGE>   88
                                                                    Attachment 6
                                                                              23


        7.2.   SMS For AIN

               7.2.1    General Description and Specifications of the Unbundled
                        Element

                      7.2.1.1  This product will allow CLEC to update AIN
                               service data residing in PACIFIC's AIN network
                               for use on the CLEC tines.

               7.2.2.   Form of Access

                      7.2.2.1  Access to AIN Service management will be provided
                               via electronic file transfer of CLEC data to
                               PACIFIC for entry by PACIFIC at one of PACIFIC's
                               AIN administrative terminals as is currently used
                               by PACIFIC for maintenance of AIN service and
                               subscriber data. Electronic access to an AIN SMS
                               system will be provided when that system is
                               deployed according to the implementation schedule
                               listed below.

               7.2.3.   Rates. Included in the SMS query charge specified in
                        Attachment 8.

               7.2.4.   Implementation. PACIFIC will make access to AIN Service
                        management available by March 31,1997.

        7.3    Access to the Service Creation Environment ("SCE") of the AIN
               Database

               7.3.1.   General Description and Specifications of the Unbundled
                        Element

                      7.3.1.1. PACIFIC will provide CLEC with access to
                               PACIFIC's AIN Service Creation Environment
                               ("SCE") for the creation and modification of AIN
                               services. All AIN services may require testing in
                               PACIFIC's AIN laboratory prior to deployment into
                               the network. Testing will evaluate compatibility
                               with PACIFIC's network nodes, interaction with
                               other AIN, 800/888, Operator Services, and other
                               switch-based features, and appropriate use of
                               network resources.

               7.3.2.   Form of Access. CLEC may choose among the following
                        forms of access:

                      7.3.2.1. Under Option 1, CLEC provides PACIFIC with
                               documentation and logic design for the desired
                               service. PACIFIC Bell personnel will operate the
                               AIN SCE terminal to create the service as
                               described by CLEC.

                      7.3.2.2. Under Option 2, CLEC personnel will operate
                               PACIFIC's SCE terminals themselves.

<PAGE>   89
                                                                    Attachment 6
                                                                              24


                      7.3.4.3  Under Option 3, CLEC will develop service logic
                               using CLEC's Bellcore SPACE platform and will
                               transfer the file to PACIFIC for testing and
                               deployment.

               7.3.3.   General Terms and Conditions

                      7.3.3.1. In all options described above, newly created or
                               modified services will be transferred to the AIN
                               laboratory for testing prior to deployment into
                               the network using the same tests currently
                               performed on PACIFIC's AIN services.

               7.3.4.   Implementation Schedule for SCE

                      7.3.4.1. PACIFIC will make Option 1 available no later
                               than March 31,1997.

                      7.3.4.2. PACIFIC will make Option 2 available when
                               partitioning of PACIFIC's SCE is available.

                      7.3.4.3. PACIFIC will make Option 3 available no later
                               than March 31,1997.

               7.3.5.   Rates. Rates for all Options shall be as specified in
                        Attachment 8.

8.      OPERATOR SERVICES

        8.1.   General Description and Specifications of the Unbundled Element

               8.1.1.   Unbundled Operator Services allows CLEC to offer
                        intraLATA operator assistance services to its end user
                        customers using PACIFIC's Operators on an unbundled
                        basis.

               8.1.2.   PACIFIC Operator Services provides the calling party
                        with general assistance, assistance in completing
                        intraLATA calls, and a means to alternately bill calls
                        by dialing 0- or 0+, as follows:

                      8.1.2.1  IntraLATA call completion services include
                               Station-to-Station, Person-to-Person, connection
                               to DA, dialing assistance for trouble conditions,
                               and transfers to repair services;

                      8.1.2.2  Alternate billing services include Station
                               Collect, Station Billed to Third Number, Station
                               Calling Card, Person Collect, Person Billed to
                               Third Number, and Person Calling Card.

                      8.1.2.3  General assistance calls include general
                               assistance (e.g., time and area code requests),
                               dialing instructions, Busy Line Verification,
                               Busy Line Interrupt, credit requests (wrong
                               number, etc.),

<PAGE>   90
                                                                    Attachment 6
                                                                              25


                               emergency assistance, disabled customer 
                               assistance, IXC requests (customer will be 
                               referred to "00"), and language assistance in 
                               Spanish.

               8.1.3.   Branding. Whenever PACIFIC provides Operator Services on
                        behalf of CLEC, at CLEC's option, PACIFIC will brand the
                        call as an CLEC call, where technically feasible. Where
                        not technically feasible, such calls will be unbranded.

        8.2.   Form of Access

               8.2.1.   Trunking. If CLEC purchases the Operator Services
                        unbundled element, CLEC may either provision its own
                        trunk group or order unbundled common or dedicated
                        Operator Services trunks from PACIFIC to connect from an
                        End Office(s) to PACIFIC's DMS 200 TOPS switch. These
                        dedicated one-way trunk groups will conform to Modified
                        Operator Services Signaling ("MOSS") or Exchange Access
                        Operator Services Signaling ("EAOSS").

                      8.2.1.1. "0" and "0+" Access. If CLEC purchases the
                               Operator Services unbundled element, PACIFIC will
                               permit CLEC's local exchange customers to connect
                               to PACIFIC's Operator Services by dialing "0," or
                               "0" plus the desired intraLATA telephone number.

               8.2.2.   On CLEC to TOPS trunk group, PACIFIC will complete
                        intraLATA 0-, 0+, and 1+ coin dialed traffic only

               8.2.3.   With ANI 07 and ANI 06 signaling, PACIFIC will perform
                        all necessary switch translations in the DMS 200 TOPS
                        switch in order to provide billing restrictions. Call
                        screening and billing restrictions are provided by using
                        Automatic Number Identification (ANI) and screening
                        codes. CLEC must provide timely screening data updates
                        using Operator Services Screen Code Assignment List.

               8.2.4.   PACIFIC will access PACIFIC's LIDB for CLEC's customers
                        on an as-needed basis to obtain:

                      8.2.4.1  Billing telephone number;

                      8.2.4.2  Associated billing restrictions using PACIFIC's
                               screen code categories; and

                      8.2.4.3  Adds, deletes, and changes.

               8.2.5    Switching and Signaling

<PAGE>   91
                                                                    Attachment 6
                                                                              26


                      8.2.5.1  MOSS or EAOSS signaling are required. Documents
                               providing the signaling interface between CLEC EO
                               and TOPS are found in TR144 and TR506.

                      8.2.5.2  Where MOSS is selected, CLEC must order separate
                               trunk groups for each NPA served.

                      8.2.5.3. CLEC must also have a point of presence ("POP")
                               at PACIFIC's DMS 200 switch within each LATA
                               served by CLEC.

                      8.2.5.4. In LATAs 722, 724, and 730, CLEC may select any
                               of PACIFIC's DMS 200 TOPS switches as its POP.

               8.2.6.   Billing records will be recorded at the TOPS switch and
                        billing detail will be passed to CABS. Detailed billing
                        records will be passed to CLEC for end user billing.

                      8.2.6.1  AMA billing will be created at the selected DMS
                               200 TOPS switch. These records will be created in
                               Expanded Bellcore AMA Format ("EBAF") Phase 2.

                      8.2.6.2  Billing will be based on operator work seconds as
                               specified in Attachment 8.

               8.2.7    For customer rate quote requests, PACIFIC's operators
                        will provide rating information if CLEC concurs with
                        PACIFIC's rates; if CLEC does not concur in PACIFIC's
                        rates, rate quote requests will be handled per Section
                        4.3.1.3 of Attachment 5.

        8.3.   General Terms and Conditions

               8.3.1.   If CLEC purchases the Operator Services unbundled
                        element, PACIFIC will provide CLEC nondiscriminatory
                        access to PACIFIC's Operator Services. The service
                        level, including any dialing delays, of the Unbundled
                        Operator Service provided to CLEC shall be at parity
                        with the Operator Service provided by PACIFIC to its own
                        customers.

               8.3.2.   BLV and BLVI. PACIFIC will offer operator-to-operator
                        BLV and BLVI to CLEC on a nondiscriminatory basis, in
                        accordance with LERG instructions. CLEC OS requires that
                        a reciprocal BLV/BLVI network be established between
                        PACIFIC and CLEC.

               8.3.3    Operator-Assisted Calls to DA ("OADA"). PACIFIC will
                        offer OADA to CLEC on a nondiscriminatory basis. OADA
                        refers to the situation in which a customer dials "0"
                        and asks the operator for DA; in such situations, the
                        customer is automatically transferred to a DA operator.
                        In

<PAGE>   92
                                                                    Attachment 6
                                                                              27


                        providing OADA to CLEC, PACIFIC will connect CLEC's end
                        user customer to PACIFIC's DA operators, and PACIFIC
                        will charge CLEC as specified in Attachment 8.

               8.3.4.   PACIFIC shall not be obligated, under any circumstances,
                        to provide call handling methods or credit card or other
                        alternate billing arrangements that are different from
                        those PACIFIC provides to itself or its affiliates.

               8.3.5.   PACIFIC shall have no duty, apart from factors within
                        PACIFIC's control, to ensure that CLEC's customers can
                        in fact access PACIFIC's Operator Services.

        8.4.   Implementation Schedule

               8.4.1.   PACIFIC will make available unbundled Operator Services
                        no later than April 30, 1997.

        8.5.   Rates CLEC will pay the rates for Operator Services as specified
               in Attachment 8.

9.      DIRECTORY ASSISTANCE SERVICES

        9.1.   General Description and Specifications of the Unbundled Element

               9.1.1.   PACIFIC's unbundled Directory Assistance Service
                        provides unbundled Directory Assistance ("DA") services
                        to CLEC by utilizing PACIFIC's DA database. This service
                        includes PACIFIC's listed customers and listings
                        supplied to PACIFIC for DA use by other carriers. This
                        DA service shall be provided at parity with PACIFIC DA
                        service and will utilize the same Directory Listing
                        source of information as PACIFIC uses for its own DA
                        service. PACIFIC's unbundled DA has the following
                        service attributes:

                        9.1.1.1  Database and retrieval system for PACIFIC's DA
                                 Operator use;

                        9.1.1.2  Retrieval of listed telephone number and
                                 address information for residence, business,
                                 and government listings, requested by locality
                                 and name, or a report that the number is not
                                 available;

                        9.1.1.3  Up to three search requests per call;

                        9.1.1.4. Area code information for the United States and
                                 Canada:

                        9.1.1.5. Exchange locality information for California;

                        9.1.1.6. Use of Automated Response Unit for number
                                 quotation;

<PAGE>   93
                                                                    Attachment 6
                                                                              28


                        9.1.1.7  Express Call Completion at parity with what
                                 PACIFIC provides for itself or its affiliates.

                        9.1.1.8. PACIFIC's DA is available on a statewide basis
                                 (throughout California) or by individual NPA.

                        9.1.1.9. PACIFIC's DA provides telephone numbers and
                                 address information within the State of
                                 California only.

               9.1.2. Nondiscriminatory Access to Directory Listings PACIFIC
                      will provide CLEC with nondiscriminatory access to
                      PACIFIC's directory listings for DA applications. CLEC
                      shall pay PACIFIC for the cost of the transfer media
                      (magnetic tape), plus PACIFIC's reasonable costs for
                      preparation and shipping of the magnetic tape. PACIFIC
                      will not permit CLEC to have access to PACIFIC's unlisted
                      customer names or unlisted customer telephone numbers.

        9.2.   Form of Access

               9.2.1. Access to Unbundled DA Services. PACIFIC will provide CLEC
                      nondiscriminatory access to PACIFIC's DA Services. The
                      service level, including any answer delays, of the
                      Unbundled DA Service provided to CLEC shall be at parity
                      with the DA Service provided by PACIFIC to its own
                      customers.

               9.2.2. Trunking Access to PACIFIC DA may be provided either
                      through PACIFIC's access tandem or by dedicated trunking
                      from End Office and routed to the appropriate DA center
                      Where CLEC uses trunking from an CLEC End Office to
                      PACIFIC's access tandem, using local interconnection
                      trunks at PACIFIC's tandem, CLEC must convert all "411"
                      dialed calls to NPA 555-1212 prior to delivery to the
                      tandem as shown in the LERG.

               9.2.3. Transport If CLEC has purchased PACIFIC's unbundled DA
                      Services element, directory transport may, at the option
                      of CLEC, be provided from where the home NPA access tandem
                      is, or from an access tandem mutually negotiated with
                      CLEC. PACIFIC will not provide transport across LATA
                      boundaries.

        9.3.   General Terms and Conditions

               9.3.1. Branding Whenever PACIFIC provides DA services on behalf
                      of CLEC, at CLEC's option, PACIFIC will brand the call as
                      an CLEC call, where technically feasible. Where not
                      technically feasible, such calls will be unbranded.

<PAGE>   94
                                                                    Attachment 6
                                                                              29


               9.3.2. Unlisted Information If CLEC has purchased PACIFIC's
                      unbundled DA Services element, PACIFIC emergency operators
                      will provide emergency assistance regarding unlisted
                      customers on an equal basis as PACIFIC does to its
                      customers

               9.3.3. CLEC shall not have access to PACIFIC's customers'
                      unlisted telephone numbers.

               9.3.4. Confidentiality of CLEC's DA and Non-Published Listings
                      PACIFIC will accord CLEC's DA and Non-Published listing
                      information the same level of confidentiality that PACIFIC
                      accords its own DA and Non-Published listing information.

               9.3.5. DA Call Completion Service In conjunction with the
                      provision of unbundled DA service to CLEC, PACIFIC will
                      provide DA Call Completion Service (which is comparable in
                      every way to the DA Call Completion Service PACIFIC makes
                      available to its own end users) in those areas where DA
                      Call Completion Service is generally available and where
                      facilities permit.

               9.3.6  If CLEC purchases PACIFIC's unbundled DA Services element,
                      PACIFIC's contact with CLEC's end user customers shall be
                      limited to that effort required to process CLEC's end user
                      customers' requests for DA services. PACIFIC will not
                      transfer, forward, or redial an CLEC's end user customer's
                      call to any other location for any purpose other than the
                      provision of DA to the customer.

               9.3.7. CLEC DA service quality will be equal to that which
                      PACIFIC provides to its own DA customers.

               9.3.8. Billing

                      9.3.8.1    Billing will be handled by CABS.

                      9.3.8.2    PACIFIC will bulk-bill CLEC, with no detailed
                                 records. CLEC shall be responsible for billing
                                 its end users for this service. All bills for
                                 CLEC DA will reflect a per-call charge and the
                                 applicable transport charges.

                      9.3.8.3    PACIFIC will not credit CLEC for customer
                                 requests that are not found in the DA database.

                      9.3.8.4    All DA calls will be billable to CLEC, except
                                 as specifically mentioned herein.


<PAGE>   95
                                                                    Attachment 6
                                                                              30


        9.4    Implementation Schedule Unbundled DA services will be available
               as of April 30,1997. Unbundled directory listings specified in
               Section 9.1.2 are available on the Effective Date of this
               Agreement.

        9.5    Rates CLEC agrees to pay for DA services per Attachment 8.

10.     OPERATING SUPPORT SYSTEMS

        10.1   General Terms and Conditions

               10.1.1 PACIFIC will provide unbundled access to its Operating
                      Support Systems (OSS) consistent with the requirements of
                      the Act, and implementing regulations, this Agreement and
                      its applicable Attachments.

               10.1.2 The specific requirements for OSS are found in Attachments
                      5, 11, 12, 13 and 14.

        10.2   Implementation Schedule PACIFIC will make 055 available pursuant
               to the schedule set forth in Attachments 5, 11, 12, 13 and 14.

        10.3   Rates CLEC agrees to pay OSS rates as specified in Attachment 8.

11.     STANDARDS FOR NETWORK ELEMENTS

        11.1   If one or more of the requirements set forth in this Agreement
               are in conflict, CLEC shall elect which requirement shall apply.

        11.2   Each Network Element and the interconnections between Network
               Elements provided by PACIFIC to CLEC shall be at least equal in
               the quality of design, performance, features, functions and other
               characteristics, including but not limited to levels and types of
               redundant equipment and facilities for power, diversity and
               security, that PACIFIC provides in PACIFIC network to itself,
               PACIFIC's own customers, to a PACIFIC affiliate or to any other
               entity.

        11.3   In the event that CLEC reasonably believes that the requirements
               of this Attachment 6 are not being met, the Parties will meet and
               confer concerning such engineering, design, performance and other
               network data, which may be necessary to cure any engineering,
               design performance of implementation deficiency. In the event
               that such data indicates that the requirements of this Attachment
               6 are not being met, PACIFIC shall cure any such deficiency as
               soon as possible.

        11.4.  Subject to this Agreement and its Attachments, PACIFIC agrees to
               work cooperatively with CLEC to provide Network Elements that
               will meet CLEC's needs in providing services to its customers.

               11.5. If PACIFIC makes available to itself or any of its end user
               customers an expedited or priority provisioning capability for
               Network Elements and interconnections

<PAGE>   96
                                                                    Attachment 6
                                                                              31


               between Network Elements, then Pacific will make such capability
               available to CLEC on a non-discriminatory basis.
<PAGE>   97
                                  ATTACHMENT 7

                          NETWORK ELEMENT COMBINATIONS

<PAGE>   98
              ATTACHMENT 7: NETWORK ELEMENT COMBINATIONS (NOTE 9)

<TABLE>
<CAPTION>
                                                                                            FIRST
COM       NOTE 4          NOTE 1     NOTE 8           TANDEM    SIGNALING              DA/  ORDER
BO   NID   LOOP   EISCC   SWITCH   TRANSPORT   DCS  SWITCHING     LINKS      STP  SCP  OS    DATE      COMMENTS
- ---  ---  -----   -----   ------   ---------   ---  ---------   ---------    ---  ---  --   -------    ---------------------------
<S>  <C>  <C>     <C>     <C>      <C>         <C>  <C>         <C>          <C>  <C>  <C>  <C>        <C>
1.    X     X       X                                                                       3/31/97
2.    X     X                X                                                              4/30/97
3.    X     X                          X        X                                           3/31/97    If MUXing, USSC or D4 req'd
4.    X     X                          X                                                    3/31/97    If MUXing, USSC or D4 req'd
5.                           X         X                                                    4/30/97    Opt. B & C. Note 2
6.                  X        X                                                              4/30/97    Opt. B & C. Note 2
7.                                                                  X         X             3/31/97
8.                  X        X                                      X         X             4/30/97
9.                  X        X                                                          X   4/30/97    Opt. B & C, FG-D
10.                                                                           X         X   4/30/97    Note 2 & 5, Opt. B & C
11.                 X        X                                      X         X         X   4/30/97    Note 2 & 5, Opt. B & C
12.                          X                                      X                       4/30/97    Note 6
13.                          X         X                            X         X             4/30/97
14.                          X         X                            X         X    X        4/30/97    Note 3
15.                          X         X                                                     Note 2    Opt. C
16.                                    X        X                                            Note 2
17.                          X         X        X                   X         X              Note 2
18.                          X         X        X                   X         X    X         Note 2
19.                          X         X        X                   X         X             4/30/97
20.                          X                                      X                       4/30/97    Note 6
21.                          X                                      X         X    X        4/30/97    Opt. A only, Opt. B & C 
                                                                                                       require transport, note 3
22.                          X         X                X                                   5/31/97
23.                          X         X                X                                   5/31/97    Note 6
24.                          X         X                X           X                       5/31/97
25.                          X         X                X           X                       5/31/97    Note 3
26.                          X                  X                   X                        Note 2
27.                          X                  X                                           4/30/97    Note 6
28.                          X                  X                   X         X    X        4/30/97    Opt. A only, Opt. B & C 
                                                                                                       require transport, note 3
29.                          X         X        X       X                                    Note 2
30.                          X         X        X       X           X                       5/31/97    Note 6
31.                          X         X        X       X           X         X              Note 2
</TABLE>

- ----------

Note 1: Switching column: Refers to Option A unless combined with EISCC,
        Transport, DCS or DA/OS.

Note 2: Available coincident with unbundled switching Option C which is
        presently not technically feasible.

Note 3: Query access to LIDB, 800 & AIN.

Note 4: Loop column: for 2-wire analog (basic & assured), 2-wire digital (ISDN),
        4-wire digital (1.544 mbps), 4-wire analog (basic & assured) & 2-wire
        copper (two types).

Note 5: OS must use MOSS signaling prior to ILP (2-PIC) deployment. With ILP, OS
        can then go to FG-D (MF or SS7) if the subscriber's line is
        pre-subscribed to CLEC for intra-LATA traffic. DA requires MOSS if it
        goes to OS trunking, but FG-D cannot support 411 (3-digit).

Note 6: STP port access must be ordered on a separate order.

Note 7: Applies to CLEC Operator Service & DA with unbundled switching Options B
        & C.

Note 8: Transport column: Dedicated, Common, shared, entrance facilities, all
        transmission rates.

Note 9: All dates are contingent on CLEC's commitment to pay the development
        costs of each requested combination. Such commitment must be made for
        each requested combination before 1/31/97.

<PAGE>   99

<TABLE>
<CAPTION>
                                                                                                 FIRST
COM         NOTE          NOTE 1    NOTE 8           TANDEM    SIGNALING                  DA/    ORDER
BO    NID   LOOP   EISCC  SWITCH  TRANSPORT   DCS   SWITCHING    LINKS      STP    SCP     OS     DATE      COMMENTS
- ---   ---   ----   -----  ------  ---------   ---   ---------  ---------    ---    ---    ---    -------    ------------------
<S>   <C>   <C>    <C>    <C>     <C>         <C>   <C>        <C>          <C>    <C>    <C>    <C>        <C>
32.                          X        X        X        X          X         X      X             Note 2
33.                          X        X                                                    X     4/30/97    Opt. B & C. Note 2
34.                          X        X                            X                       X     4/30/97    Note 5
35.                          X        X                            X         X             X     4/30/97    Note 5
36.                          X        X                            X         X      X      X     4/30/97    Note 5
37.                          X        X        X                                           X      Note 2
38.                          X        X        X                   X                       X     4/30/97    Note 5
39.                          X        X        X                   X         X             X     4/30/97    Note 5
40.                          X        X        X                   X         X      X      X     4/30/97    Note 5
41.                          X                                     X         X             X     4/30/97    Note 5
42.                          X                                     X                       X     4/30/97    Notes 5 & 6
43.                          X                                     X         X      X      X     5/31/97    Notes 3 & 5
44.                          X        X                 X                                  X     5/31/97    Note 7
45.                          X        X                 X          X                       X     5/31/97    Notes 5 & 6
46.                          X        X                 X          X         X             X     5/31/97    Notes 5 & 6
47.                          X        X                 X          X         X      X      X     5/31/97    Notes 3 & 5
48.                          X                 X                   X         X             X     5/31/97    Note 5
49.                          X                 X                   X                       X     5/31/97    Notes 5 & 6
50.                          X                 X                   X         X      X      X     5/31/97    Note 5
51.                          X        X        X        X                                  X     5/31/97    Note 7
52.                          X        X        X        X                                  X     5/31/97    Notes 5 & 6
53.                          X        X        X        X                    X             X     5/31/97    Note 5
54.                          X        X        X        X                    X      X      X     5/31/97    Note 5
</TABLE>

Note 1: Switching column: Refers to Option A unless combined with EISCC,
        Transport, DCS or DA/OS.

Note 2: Available coincident with unbundled switching Option C which is
        presently not technically feasible.

Note 3: Query access to LIDB, 800 & AIN.

Note 4: Loop column: for 2-wire analog (basic & assured), 2-wire digital (ISDN),
        4-wire digital (1.544 mbps), 4-wire analog (basic & assured) & 2-wire
        copper (two types).

Note 5: OS must use MOSS signaling prior to ILP (2-PIC) deployment. With ILP, OS
        can then go to FG-D (MF or SS7) if the subscriber's line is
        pre-subscribed to CLEC for intra-LATA traffic. DA requires MOSS if it
        goes to OS trunking, but FG-D cannot support 411 (3-digit).

Note 6: STP port access must be ordered on a separate order.

Note 7: Applies to CLEC Operator Service & DA with unbundled switching Options B
        & C.

Note 8: Transport column: Dedicated, Common, shared, entrance facilities, all
        transmission rates.

Note 9: All dates are contingent on CLEC's commitment to pay the development
        costs of each requested combination. Such commitment must be made for
        each requested combination before 1/31/97.
<PAGE>   100


                                  ATTACHMENT 8

                                     PRICING



<PAGE>   101
                                                                    ATTACHMENT 8
                                                                          Page 2

                                  ATTACHMENT 8
                                     PRICING


1.       LOCAL SERVICES RESALE

         The prices charged to CLEC for resold Local Service shall be calculated
         using the avoided cost discount set forth herein. The interim wholesale
         discount shall be [**] off the applicable retail rate for all PACIFIC
         services subject to resale. The interim discount shall remain in effect
         until the Commission determines a different wholesale discount in any
         proceeding subsequent to the Effective Date of this Agreement. Once so
         determined by the Commission, said different wholesale discount shall
         apply instead of the interim discount for the remaining Term of this
         Agreement.

         The prices shall be based on PACIFIC's retail rates applicable on the
         Effective Date, less the applicable discount. If PACIFIC changes its
         retail rates after CLEC executes this Agreement, the applicable
         discount shall be applied to the changed retail rates from the time
         such changes become effective.

         1.1.     Non-recurring Charges for Total Services Resale

                  1.1.1    Non-recurring charge(s) shall be based on PACIFIC's
                           retail rates less the applicable discount.

                  1.1.2    Notwithstanding Section 1.1.1, unless changed by the
                           Commission, PACIFIC shall NOT charge any
                           non-recurring charges to switch a customer from
                           PACIFIC's retail service to CLEC resold service.
                           PACIFIC may track its one-time, non-recurring service
                           order costs and seek recovery of these costs in an
                           appropriate Commission proceeding, which CLEC shall
                           have the right to contest. In addition, the Parties
                           disagree whether the "no change-over charge" for
                           resold services specified in this section should
                           apply in the following circumstances: (1) when CLEC
                           moves an existing Link customer (be it an existing
                           CLEC Link customer or that of another CLC) to resold
                           Local Service; (2) when CLEC moves an existing resold
                           customer of another CLC to CLEC's service. For the
                           customer movement identified in the previous
                           sentence, PACIFIC may track its non-recurring
                           provisioning costs and its one-time non-recurring
                           service order costs and seek recovery of these costs
                           in an appropriate Commission proceeding, which CLEC
                           shall have the right to contest

2.       UNBUNDLED NETWORK ELEMENTS

         The prices charged to CLEC for Network Elements are as specified in
         Appendix A to this Attachment. The prices listed in the Appendix are
         interim prices only and are subject to change to conform with the rate
         for unbundled Network Elements and non-recurring charges adopted by the
         Commission subsequent to the Effective Date of this Agreement.


- --------------
[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and
     Exchange Commission.
<PAGE>   102

                                                                    ATTACHMENT 8
                                                                          Page 3



         Once the Commission-determined prices are adopted, said prices will be
         substituted for the interim prices and shall apply for the remainder of
         the Term of this Agreement.

3.       COLLOCATION

         On an interim basis, the rates contained in PACIFIC's Schedule Cal.
         P.U.C. Tariff No. 175-T, Section 16, and FCC Tariff No. 128, Section
         16, shall apply. Any collocation rates determined by the Commission
         subsequent to the Effective Date of this Agreement shall replace such
         interim rates.

4.       INTERCONNECTION SERVICES

         PACIFIC will make interconnection arrangements available at all
         collocated locations. CLEC may choose to deliver both local and
         intraLATA toll traffic over the same trunk group(s). With respect to
         the previous sentence, CLEC will provide PACIFIC with the Percent Local
         Usage (PLU) factor to facilitate billing of the local interconnection
         rate. CLEC's PLU determination shall be subject to reasonable audit by
         PACIFIC pursuant to Section 11 of this Agreement.

         Prices and terms for interconnection services are specified in
         Attachment 18 and Appendix 1 to this Attachment 8, including, without
         limitation, the calculation of applicable charges for the completion of
         toll and local traffic when PACIFIC's LSNE is used, the manner for
         determining when reciprocal compensation applies for the exchange of
         local traffic, and the reciprocal compensation rates for local and toll
         traffic.

5.       RIGHTS OF WAY, CONDUITS AND POLE ATTACHMENTS

         CLEC shall pay PACIFIC a fee consistent with 47 U.S.C. Section 224 and
         FCC and Commission regulations thereunder for placement of CLEC's
         facilities in or on PACIFIC's poles, conduits, or rights of way. The
         Parties shall mutually agree on such fee and in the event of any
         dispute, will use the Alternative Dispute Resolution process set forth
         in Attachment 3. Such fee is subject to change, pursuant to Section 9.3
         of this Agreement, in the event the FCC issues new rules or the
         Commission adopts rules setting forth a new methodology.

6.       OTHER

         The following prices also shall apply:

         -        E911 (when CLEC orders this service as a facilities-based
                  carrier): PACIFIC's tariff rates shall apply as set forth in
                  Exhibit 1 to this Attachment 8.

         -        PACIFIC shall provide RCF to CLEC pursuant to the terms of the
                  DNCF tariff (including any modification subsequently adopted
                  by the Commission) filed by PACIFIC, except that the Parties
                  (a) shall establish accounts to track



                                       3

<PAGE>   103

                                                                    ATTACHMENT 8
                                                                          Page 4



                  their own costs of providing INP pursuant to this Agreement
                  and (b) agree to recover such costs consistent with FCC and
                  Commission requirements at such time as such requirements are
                  established. Until any FCC or Commission order establishes a
                  different cost recovery mechanism, a "bill and keep"
                  arrangement will apply to the ported segment of any ported
                  call between the Porting Party's switch and the Ported-to
                  Party's switch.

         -        References to PACIFIC's Switched and Special Access tariffs or
                  service shall mean the rates in PACIFIC's intrastate (Cal.
                  Schedule PUC 175-T) or interstate (FCC No. 128) access
                  tariffs, as applicable, shall apply.

         -        Warm line transfer: Where the Parties have agreed that CLEC
                  will pay PACIFIC for warm line transfer, PACIFIC's tariffed
                  rate for this service shall apply.

         -        Centrex Assumed Dial 9: PACIFIC's tariffed rate for this
                  service shall apply.

         These rates shall remain in effect until the Commission determines
         different rates in any proceeding subsequent to the Effective Date of
         this Agreement. Once so determined by the Commission, said different
         rates shall apply instead of the rates set forth herein for the
         remaining Term of this Agreement.

7.       IMPLEMENTATION COST RECOVERY

         The Parties disagree whether or in what amount PACIFIC should charge
         CLEC for implementation costs and service quality in excess of parity
         incurred as a result of requests to establish and provide
         interconnection services, Local Services, Network Elements or
         Combinations. PACIFIC shall track all such costs and propose recovery
         of same to the Commission. To the extent granted by the Commission,
         CLEC shall pay such costs as ordered by the Commission. CLEC is free to
         contest PACIFIC's right to recover any such costs and/or what its share
         of such costs should be.

8.       TO BE DETERMINED

         In this Agreement, rates for certain services, Network Elements and
         Combinations are specified as "To Be Determined" (TBD). In addition,
         numerous provisions of this Agreement refer to prices set forth in
         Attachment 8. In the event of such a reference in this Agreement where
         there is no corresponding price in this Attachment 8, it shall be
         deemed to be TBD. With respect to all TBD prices, prior to CLEC
         ordering any such TBD items, the Parties shall meet and confer to
         establish a price. If no agreement is reached, the Parties shall refer
         any disputes to the Alternative Dispute Resolution process set forth in
         Attachment 3. Any rates set in arbitration shall be subject to
         modification by any subsequent decision of the Commission. CLEC shall
         be responsible for payments of any such rates so established as ordered
         in arbitration or by the Commission.



                                       4

<PAGE>   104

                                                                    ATTACHMENT 8
                                                                          Page 1


<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
                                   Monthly       Service Order          Connect             Disconnect          Change Order
     NETWORK ELEMENTS             Recurring    Initial  Additional  Initial  Additional  Initial  Additional  Initial  Additional
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                              <C>          <C>      <C>         <C>      <C>         <C>      <C>          <C>     <C> 
LOOP

    Weighted 2 - Wire Basic Link
    Weighted 4 - Wire Basic Link
    Assured
    ISDN Option
    Digital Link - 1.544 Mbps
    PBX
    Cain

NETWORK INTERFACE DEVICE

LOCAL SWITCHING CAPABILITY
    Ports

    2-Wire Port
    Cain Port
    Centrex Port
      Centrex System 
      Establishment                    [**]           [**]               [**]                [**]                [**]
    ISDN Port
    DID Port
      DID Number Block
    Hunting - Business
    DS-1 Line Port

    Ports Combined with Loop
    Ports (All)

    Vertical Features 
      (Weighted Avg.)
    Call Forwarding Variable
    Busy Call Forwarding
    Delayed Call Forwarding
    Call Waiting
    Three Way Calling
    Call Screen
    Message Waiting Indicator
    Repeat Dialing
    Call Return
    Call Forwarding Busy/Delay
    Remote Call Forwarding
      (Weighted Avg.)
    Other Vertical Features
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>


- -----------------------

[**]     Pursuant to a request for confidential treatment, price information in
         this document has been omitted and separately filed with the Securities
         and Exchange Commission.



                                       1

<PAGE>   105

                                                                    ATTACHMENT 8
                                                                          Page 1


<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
                                   Monthly       Service Order          Connect             Disconnect          Change Order
     NETWORK ELEMENTS             Recurring    Initial  Additional  Initial  Additional  Initial  Additional  Initial  Additional
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                              <C>          <C>      <C>         <C>      <C>         <C>      <C>          <C>     <C> 
    Basic Switching Functions
    Interoffice - Originating
      Setup per Attempt
      MOU
    Interoffice - Terminating
      Setup per Call
      MOU
    Interoffice
      Setup per Call
      MOU
    Tandem Switching
      Setup per Call
      MOU
   INTEROFFICE TRANSMISSION
   Trunk Port Termination
      End Office Dedicated DS 1 Port
      Tandem Dedicated DS 1 Port
   CLC Switched Service Establishment
      1AESS                           [**]            [**]                [**]                 [**]                 [**]
      5ESS
    DMS100
   Common Transport
    Zone 1
     Fixed Mileage
     Variable Mileage
    Zone 2
     Fixed Mileage
     Variable Mileage
    Zone 3
     Fixed Mileage
     Variable Mileage
    Zone 4
     Fixed Mileage
     Variable Mileage
   Dedicated Transport
       Voice Grade Dedicated Transport
    Zone 1
     Fixed Mileage
     Variable Mileage
    Zone 2
     Fixed Mileage
     Variable Mileage
    Zone 3
     Fixed Mileage
     Variable Mileage
    Zone 4
     Fixed Mileage
     Variable Mileage
       DS1 Dedicated Transport
    Zone 1
     Fixed Mileage
     Variable Mileage
    Zone 2
     Fixed Mileage
     Variable Mileage
    Zone 3
     Fixed Mileage
     Variable Mileage
    Zone 4
     Fixed Mileage
     Variable Mileage
       DS3 Dedicated Transport
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>


- -----------------------

[**]     Pursuant to a request for confidential treatment, price information in
         this document has been omitted and separately filed with the Securities
         and Exchange Commission.



                                       2



<PAGE>   106

                                                                    ATTACHMENT 8
                                                                          Page 3



<TABLE>
<S>                              <C>          <C>      <C>         <C>      <C>         <C>      <C>          <C>     <C> 
    Zone 1
     Fixed Mileage
     Variable Mileage
    Zone 2
     Fixed Mileage
     Variable Mileage
    Zone 3
     Fixed Mileage
     Variable Mileage
    Zone 4
     Fixed Mileage
     Variable Mileage
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>





                                       3


<PAGE>   107

                                                                    ATTACHMENT 8
                                                                          Page 4


<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
                                   Monthly       Service Order          Connect             Disconnect          Change Order
     NETWORK ELEMENTS             Recurring    Initial  Additional  Initial  Additional  Initial  Additional  Initial  Additional
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                              <C>          <C>      <C>         <C>      <C>         <C>      <C>          <C>     <C> 
   Shared Transport
    Zone 1
     Fixed Mileage
     Variable Mileage
    Zone 2
     Fixed Mileage
     Variable Mileage
    Zone 3
     Fixed Mileage
     Variable Mileage
    Zone 4
     Fixed Mileage
     Variable Mileage

   MULTIPLEXING
    DS0/DS1 MUX
    DS1/DS3 MUX
    DCS                            [**]            [**]                [**]                 [**]                 [**]

    USCC

   SIGNALING SYSTEM (SS7)

    STP Port
    SS7 Link
    Link Mileage
    800 Database
    LIDB Query


   OPERATOR SERVICES & DA
    Directory Assistance Per Call
    Operator Services Per Work Sec

   COLLOCATION
    EISCC Combined with Loop
      Basic
      DS0
      DS1
      DS3

    EISCC
      Basic
      DS0
      DS1
      DS3

    Entrance Facilities
    2-Wire Voice
    4-Wire Voice
    DS-1
    DS-3 w/equip
    DS-3 w/o equip
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>


- -----------------------


[**]     Pursuant to a request for confidential treatment, price information in
         this document has been omitted and separately filed with the Securities
         and Exchange Commission.



                                       4
<PAGE>   108

                                                                    ATTACHMENT 9
                                                                          Page 1




                                  ATTACHMENT 9

                     ACCESS TO VERIGATE, LEX AND OPERATIONS
                                 SUPPORT SYSTEMS



<PAGE>   109
                                                                    ATTACHMENT 9
                                                                          Page 2



                                  ATTACHMENT 9
              ACCESS TO VERIGATE AND LEX OPERATIONS SUPPORT SYSTEMS


1.       GENERAL CONDITIONS

         1.1      This Attachment sets forth the terms and conditions under
which PACIFIC provides access to three of PACIFIC'S operations support systems
(OSS) "functions" to CLEC for pre-ordering, ordering and order statusing,
VeriGate and LEX respectively.

         1.2      CLEC agrees to utilize VeriGate and LEX as described herein,
only for the purposes of establishing and maintaining Resale services or UNEs
through PACIFIC. CLEC agrees that the ordering interface will only support those
Resale and UNE services for which industry standard ordering conventions have
been adopted by the OBF. and implemented by PACIFIC. In addition, CLEC agrees
that such use will comply with the summary of SBC's Operating Practice 113, as
attached to this Attachment and the User ID request form. The Alternative
Dispute Resolution (ADR) process set forth in Attachment 3 shall apply to any
issues which arise under this Attachment 9, including any alleged non-compliance
with these security guidelines.

         1.3      CLEC's access to pre-order functions described in 2.2.2 and
2.3.2 will be governed by Sections 5.5 of Attachment 5 to this Agreement for
Resale services. and by Section 5.2 of Attachment 11 to this Agreement for UNE
services.

         1.4      By utilizing the electronic interfaces described herein to
access OSS functions, where CLEC has direct ordering capability, CLEC agrees not
to knowingly alter any applicable Resale rates and charges where they are
subject to the terms of this Agreement and applicable PACIFIC tariffs or PACIFIC
UNE rates and charges per the terms of this Agreement. CLEC agrees to use
reasonable business efforts to submit orders that are correct and complete.
Pacific will use reasonable business efforts to reject for processing CLEC
orders which are not correct and complete. The Parties agree to conduct internal
and independent reviews for accuracy. The audit rights in Section 11 of the
Agreement shall apply.

         1.5      The Information Services (I.S.) Call Center provides a
technical support function for the OSS interfaces described in this Attachment.
CLEC will also provide a single point of contact for technical issues related to
the electronic interfaces.

         1.6      PACIFIC and CLEC will establish interface contingency plans
and disaster recovery plans for the OSS interfaces described in this Attachment.

         1.7      The Parties agree that the Change Management Process agreed to
and documented under the auspices of the CPUC OSS 011 will be used to manage
changes to LEX and Verigate.




<PAGE>   110

                                                                    ATTACHMENT 9
                                                                          Page 3



2.       PRE-ORDER

         2.1      Where available to Pacific, PACIFIC will provide real time
access to pre-order functions to support CLEC ordering of Resale services and
UNE via the electronic interfaces described herein. The Parties acknowledge that
ordering requirements necessitate the use of current, real time pre-order
information to accurately build service orders. The following lists represent
pre-order functions that are available to CLEC.

         2.2      Pre-ordering functions for Resale include:

                  2.2.1    features and services available at a valid service
                           address (as applicable):

                  2.2.2    access to customer proprietary network information
                           (CPNI) for PACIFIC retail or resold services for
                           pre-ordering will include: billing name service
                           address. billing address. service and feature
                           subscription, directory listing information, long
                           distance carrier identity, and pending service order
                           activity. CLEC agrees to comply with the conditions
                           as described in Section 5.5 of Attachment 5 to this
                           Agreement;

                  2.2.3    a telephone number (if the end user does not have one
                           assigned) with the end user on-line;

                  2.2.4    service availability dates to the end user;

                  2.2.5    information regarding whether dispatch is required:

                  2.2.6    Primary Interexchange Carrier (PIC) options for
                           intraLATA toll (when available) and interLATA toll:

                  2.2.7    service address verification.

         2.3      Pre-ordering functions for UNE include:

                  2.3.1    features and services available at a valid service
                           address (as applicable);

                  2.3.2    access to customer proprietary network information
                           (CPNI) for PACIFIC retail or resold services for
                           pre-ordering will include: billing name, service
                           address, billing address, service and feature
                           subscription, directory listing information, long
                           distance carrier identity, and pending service order
                           activity. CLEC agrees to comply with the conditions
                           as described in Section 5.2 of Attachment 11 to this
                           Agreement for UNE services;

                  2.3.3    a telephone number (if the end user does not have one
                           assigned) with the end user on-line;




                                       3

<PAGE>   111

                                                                    ATTACHMENT 9
                                                                          Page 4



                  2.3.4    service availability dates to the end user where CLEC
                           requests PACIFIC to provision combinations of UNEs
                           and where such combined elements have analogous
                           PACIFIC retail services with flexible service
                           availability date functions:

                  2.3.5    information regarding whether dispatch is required
                           where CLEC requests PACIFIC to provision combinations
                           of UNEs and where such combined elements have
                           analogous PACIFIC retail services with flexible
                           service availability date functions;

                  2.3.6    Primary Interexchange Carrier (PIC) options for
                           intraLATA toll (when available) and interLATA toll;

                  2.3.7    service address verification.

         2.4.     Electronic Access to Pre-Order Functions: PACIFIC will provide
CLEC access to the following system:

                  2.4.1    VeriGate is an end-user interface developed by
                           PACIFIC that provides access to the pre-ordering
                           functions for Resale Services and UNE. VeriGate may
                           be used in connection with electronic or manual
                           ordering.

3.       ORDERING/PROVISIONING

         3.1      PACIFIC will provide access to ordering and statusing
functions to support CLEC provisioning of Resale services and UNEs via the OSS
interfaces described below. To order Resale services and UNEs, CLEC will format
the service request to identify what features services, or elements it wishes
PACIFIC to provision in accordance with PACIFIC LSOR and other ordering
requirements which have been reviewed and discussed by both parties. PACIFIC
will provide CLEC access to the following interfaces:

                  3.1.1    LSR Exchange (LEX) is a graphical user interface
                           provided by PACIFIC that provides access to the
                           ordering functions for UNEs and Resale Services.

4.       REMOTE ACCESS

         4.1      CLEC must access the PACIFIC OSS interfaces, described herein.
via the Pacific Remote Access Facility (PRAF). Connection to the PRAF will be
established via a "port" either through dial-up or direct connection. CLEC may
utilize a single port to access these interfaces to perform the supported
functions in PACIFIC where CLEC has executed this Attachment and purchases
System Access.



                                       4

<PAGE>   112

                                                                    ATTACHMENT 9
                                                                          Page 5



5.       OPERATIONAL READINESS TEST (ORT) FOR ORDERING/PROVISIONING

         5.1      Prior to initial live access to interface functionality, the
Parties shall conduct Operational Readiness Testing (ORT)-which will allow for
the testing of the systems, interfaces. and processes for the OSS functions.

         5.2      Prior to live system usage, CLEC must complete user education
classes for PACIFIC-provided interfaces that affect the PACIFIC network. Classes
are train-the-trainer format to enable CLEC to devise its own course work for
its own employees. Charges will apply for each class. Classes will be available
for and required for LEX. Optional classes will be available for VeriGate.
Schedules will be made available upon request and are subject to change. The
length of classes varies; the following table presents the applicable rates.
Ongoing class schedules may be requested from CLEC's account manager.


                                      [**]


         5.3      A separate agreement will be required as a commitment to pay
for a specific number of CLEC students in each class. CLEC agrees that charges
will be billed by PACIFIC and CLEC payment is due 30 days later. CLEC agrees
that personnel from other competitive Local Service Providers may be scheduled
into any class to fill any seats for which CLEC has not contracted. Class
availability is first-come, first served with priority given to CLECs who have
not yet attended the specific class.

         5.4      Class dates will based upon CLEC requests and PACIFIC
availability.

         5.5      CLEC agrees to pay a cancellation fee of the full price noted
in the separate agreement if CLEC cancels scheduled classes less than two weeks
prior to the scheduled start date. Should PACIFIC cancel a class for which CLEC
is registered less than two weeks prior to the schedule start date of that
class, Pacific will waive the charges for the reschedule class for the
registered students. CLEC agrees to provide to PACIFIC completed registration
forms for each student no later than one week prior to the scheduled training
class.

         5.6      CLEC agrees that CLEC personnel attending classes are to
utilize only training databases and training presented to them in class.
Attempts to access any other PACIFIC or SBC system are strictly prohibited.




- -----------------------

[**]     Pursuant to a request for confidential treatment, price information in
         this document has been omitted and separately filed with the Securities
         and Exchange Commission.


                                       5
<PAGE>   113

                                                                    ATTACHMENT 9
                                                                          Page 6


         5.7      CLEC further agrees that training material. manuals and
instructor guides are Confidential Information as that term is defined in the
Interconnection Agreement.

6.       RATES

         6.1      CLEC will pay PACIFIC the OSS rate(s) set forth in California
Public Utilities Commission's first rulemaking in the Open Access and Network
Architecture Development (OANAD) proceeding or as otherwise determined by the
California Public Utilities Commission.

         6.2      In the case of rates for interfaces not covered by the OANAD
proceeding. PACIFIC will charge proposed rates filed with the California Public
Utilities Commission in the interim, subject to true-up.

         6.3      Should OSS rates not be established in OANAD by September 30,
1998 for LEX and VeriGate. CLEC will, under protest, pay Pacific the OSS rate of
[**] per month for LEX and [**] per month for Verigate.

         6.4      CLEC will pay PACIFIC a connectivity rate of [**] per month
per T-I connection for direct access to the PRAF and/or [**] per month per port
for dial-up access to the PRAF.

         6.5      All of PACIFIC's proposed rates are subject to true-up should
the final Commission determined rate be higher or lower.

         6.6      The rate waiver described in 6.3 is solely for 055 functions
and not applicable to any other product, unless expressly documented in this
Agreement. Neither party waives its rights pursuant to OSS or any other product
in the OANAD proceeding, nor rights in any other product cost proceeding.



- -----------------------

[**]     Pursuant to a request for confidential treatment, price information in
         this document has been omitted and separately filed with the Securities
         and Exchange Commission.




                                        6
<PAGE>   114

                                                                   Attachment 10
                                                                          Page 1



                               ANCILLARY FUNCTIONS

1.            INTRODUCTION

              This Attachment 10 sets forth the Ancillary Functions that PACIFIC
              agrees to offer to CLEC so that CLEC may obtain and use unbundled
              Network Elements or PACIFIC services to provide services to its
              customers.

2.            PACIFIC PROVISION OF ANCILLARY FUNCTIONS

2.1           The Ancillary Functions that CLEC and PACIFIC have identified as
              of the Effective Date of this Agreement are Collocation, which is
              addressed in Section 3, and Right of Way, which is addressed in
              Section 4 of this Attachment. CLEC may use Collocation and Right
              of Way to provide any feature, function, or service option that
              such Ancillary Function is capable of providing or any feature,
              function, or service option that is described in the relevant
              technical references, or as may otherwise be designated by CLEC
              consistent with the Act, the regulations thereunder and relevant
              Commission decisions.

2.2           CLEC and PACIFIC agree that the Ancillary Functions identified in
              this Attachment 10 are not exclusive. Either Party may identify
              additional or revised Ancillary Functions as necessary to improve
              services to customers, to improve network or service efficiencies
              or to accommodate changing technologies, customer demand, or
              regulatory requirements. Upon the identification of a new or
              revised Ancillary Function, the Parties shall cooperate in an
              effort to negotiate mutually agreeable rates, terms and conditions
              for the provision of that Ancillary Function. If the Parties are
              unable to agree on the terms and conditions for a new or revised
              Ancillary Function that PACIFIC is required to offer under the
              terms of the Act, either Party may invoke the Alternative Dispute
              Resolution procedures established by Attachment 3. Security
              procedures agreed to by PACIFIC and CLEC for the protection of
              both Parties' service and property, including collocation spaces,
              and procedures for law enforcement interface are described in
              Attachment 16.

3.            COLLOCATION

3.1           DEFINITIONS:

3.1.1         Collocation is the right of CLEC to place equipment in PACIFIC's
              Local Serving Office (LSO) or other PACIFIC locations to
              interconnect with PACIFIC's network. Collocation also includes
              PACIFIC providing resources necessary for the operation and
              economical use of collocated equipment.




<PAGE>   115

                                                                   Attachment 10
                                                                          Page 2



3.1.2         Physical collocation is defined in 47 C.F.R. Sec. 51.5.

3.1.3         Virtual collocation is defined in 47 C.F.R. Sec. 51.5.

3.2           TECHNICAL REQUIREMENTS

3.2.1         PACIFIC will provide for Physical Collocation and Virtual
              Collocation of CLEC's transport facilities and termination
              equipment necessary for interconnection of CLEC's network
              facilities to PACIFIC's network or access to unbundled network
              elements. Such collocation shall be provided at the rates
              specified in Attachment 8 and on a nondiscriminatory basis in
              accordance with the requirements of the Act and the FCC's rules
              thereunder.

3.2.2         PACIFIC shall permit collocation of any type of equipment used or
              useful for interconnection or access to unbundled network
              elements, in accordance with the Act and sections 579 through 582
              of the FCC's First Interconnection Order. Such equipment includes
              but is not limited to transmission equipment, such as optical
              terminating equipment and multiplexers, equipment for the
              termination of basic transmission facilities and such additional
              types of equipment that may be agreed to by the Parties or
              designated in future FCC or Commission rulings. If a request by
              CLEC to collocate is denied on the basis of the equipment to be
              installed by CLEC, PACIFIC shall prove to the Commission that such
              equipment is not "necessary" as defined by the FCC for
              interconnection or access to unbundled network elements.

3.2.3         When providing Virtual Collocation, PACIFIC will, at a minimum,
              install, maintain, and repair collocated equipment for CLEC within
              the same time periods and with failure rates that are no greater
              than those that apply to the performance of similar functions for
              comparable equipment of PACIFIC, provided, if CLEC utilizes
              nonstandard equipment or equipment not used by PACIFIC at the same
              location, CLEC shall pay for (a) any special equipment PACIFIC
              must purchase and (b) any training of PACIFIC personnel required
              for PACIFIC to install or maintain such non-standard or special
              equipment.

3.2.4         PACIFIC will make space available within or on its premises to
              CLEC and other requesting telecommunications carriers on a
              first-come, first-served basis, provided, however, that PACIFIC
              will not be required to lease or construct additional space to
              provide for Physical Collocation when existing space has been
              exhausted. To the extent possible, PACIFIC will make contiguous
              space available to CLEC if CLEC seeks to expand an existing
              collocation space. When planning renovations of existing
              facilities or constructing or leasing new facilities, PACIFIC
              shall take into account projected demand for collocation space.
              PACIFIC may retain a limited amount of floor space for PACIFIC's
              own specific future uses for a time period up to one year on terms
              no more favorable to PACIFIC than those that apply to other
              telecommunications carriers seeking to



                                       8
<PAGE>   116

                                                                   Attachment 10
                                                                          Page 3



              reserve collocation space for their own future use. PACIFIC shall
              relinquish any space held for future use before denying a request
              for Virtual Collocation on grounds of space limitations, unless
              PACIFIC proves to the Commission that Virtual Collocation at that
              point is not technically feasible. PACIFIC may impose reasonable
              restrictions on its provision of additional unused collocation
              space ("warehousing") as described in Section 586 of the First
              Interconnection Order to collocating telecommunications carriers,
              provided, however, that PACIFIC shall not set a maximum space
              limitation on CLEC unless PACIFIC proves to the Commission that
              space constraints make such restrictions necessary.

3.2.5         PACIFIC will permit CLEC to collocate equipment and use such
              equipment to access unbundled Network Elements obtained from
              PACIFIC and will not require CLEC to bring its own transmission
              facilities to PACIFIC's premises in which CLEC seeks to collocate
              equipment for purposes of access to unbundled Network Elements.

3.2.6         PACIFIC will permit CLEC to interconnect its network with that of
              another collocating telecommunications carrier at PACIFIC's
              premises and to connect its collocated equipment to the collocated
              equipment of another telecommunications carrier within the same
              premises provided that the collocated equipment is also used for
              interconnection with PACIFIC or for access to PACIFIC's unbundled
              Network Elements. PACIFIC will provide the connection between the
              equipment in the collocated spaces of two or more
              telecommunications carriers via EISCCs and any necessary DCS or
              other equipment at the requesting competitive local carrier's
              expense, unless PACIFIC permits one or more of the collocating
              parties to provide this connection for themselves. PACIFIC need
              not permit collocating telecommunications carriers to place their
              own connecting transmission facilities within PACIFIC's premises
              outside of the actual Physical Collocation space.

3.2.7         Transferring CLEC interconnection from PACIFIC's current access
              service transport or entrance facilities to EISCCs will be
              accomplished within a mutually agreed-upon time frame; however, to
              ensure a smooth transition from such access services to EISCCs,
              CLEC must provide forecasts of its future needs for EISCC capacity
              by location at least 90 days in advance of its desired transition
              date.

3.2.8         PACIFIC will permit CLEC to subcontract the construction of
              Physical Collocation arrangements with contractors approved by
              PACIFIC, provided that PACIFIC will not unreasonably withhold
              approval of contractors. Approval by PACIFIC will be based on the
              same criteria PACIFIC uses in approving contractors for its own
              purposes.

3.2.9         PACIFIC shall provide an EISCC for intraoffice cross-connect
              (e.g., DSO, DS1, D53, 0C3, 0C12, 0C48, and STS-1 terminations) as
              requested by CLEC, to meet CLEC's need for placement of equipment,
              interconnection, or provision of service at rates specified in
              Attachment 8.





<PAGE>   117

                                                                   Attachment 10
                                                                          Page 4



3.2.10        Other than reasonable security restrictions described in
              Attachment 16, PACIFIC shall place no restriction on access to the
              CLEC collocated space by CLEC's employees and designated agents.
              Such space shall be available to CLEC designated agents 24 hours
              per day each day of week. PACIFIC will not impose unreasonable
              security restrictions at the premises. CLEC personnel may, with an
              escort provided by PACIFIC, inspect equipment in a Virtual
              Collocation location upon and after installation.

3.2.11        CLEC shall have the right, at the point of termination for the
              EISCC, to assign which tie pair facilities and which channels on
              multiplexers, concentrators or other equipment under CLEC's
              control are used for service in the collocated space.

3.2.12        PACIFIC shall allow CLEC to select its own vendors for all
              required engineering and installation services associated with its
              collocated equipment (e.g., PACIFIC shall not require CLEC to
              utilize PACIFIC's internal engineering or installation work forces
              for the engineering and installation of CLEC's collocated
              equipment). Installation of equipment in the collocated space
              must comply with PACIFIC's Installation and Job Acceptance
              Handbook, which has been provided to CLEC.

3.2.13        CLEC may install monitoring equipment in the collocated space to
              carry data back to CLEC's work center for analysis.

3.2.14        At CLEC's request, PACIFIC shall provide POTS with a connection
              jack for the collocated space. Upon CLEC's request, this service
              shall be available at the CLEC collocated space on the day that
              the space is turned over to CLEC by PACIFIC.

3.2.15        PACIFIC shall provide adequate lighting, ventilation, power, heat,
              air conditioning, and other environmental conditions for CLEC's
              space or equipment. These environmental conditions shall adhere to
              Bell Communication Research (Bellcore) Network Equipment-Building
              System (NEBS) standards.

3.2.16        PACIFIC shall provide access to existing eyewash stations, shower
              stations, and bathrooms within the collocated facility on a 24
              hours per day and 7 days per week basis for CLEC personnel and its
              designated agents.

3.2.17        PACIFIC agrees to negotiate requests by CLEC for diversity of
              fiber or power cabling on an individual case basis.

3.2.18        PACIFIC shall protect as proprietary to CLEC all information
              provided by CLEC in requesting or maintaining a collocation
              arrangement. PACIFIC shall not provide such information to any
              third parties and shall limit access to the information to PACIFIC
              employees having a need to know.



<PAGE>   118

                                                                   Attachment 10
                                                                          Page 5



3.2.19        PACIFIC shall participate in and adhere to negotiated service
              guarantees, performance standards, and ISO reviews.

3.2.20        PACIFIC will complete a Environmental Health & Safety
              Questionnaire for each building that collocated space is provided
              in. CLEC may provide this questionnaire with its collocation
              request and PACIFIC shall return it to CLEC no later than the
              first meeting between representatives of CLEC and PACIFIC
              scheduled to discuss implementation of a collocation application,
              which generally shall be scheduled within thirty (30) days after
              CLEC's collocation request ("First Customer Implementation
              Meeting").

3.2.21        PACIFIC shall provide CLEC with written notice five (5) business
              days prior to those instances where PACIFIC or its subcontractors
              may be undertaking a major construction project in the general
              area of the collocated space occupied by CLEC or in the general
              area of the AC and DC power plants which support CLEC equipment.
              PACIFIC will inform CLEC by telephone of any emergency related
              activity that PACIFIC or its subcontractors may be performing in
              the general area of the collocated space occupied by CLEC or in
              the general area of the AC and DC power plants which support CLEC
              equipment. Notification of any emergency related activity shall be
              made immediately prior to the start of the activity so that CLEC
              can take any action required to monitor or protect its service.

3.2.22        PACIFIC shall construct the collocated space in compliance with
              CLEC's collocation request for cable holes, ground bars, doors,
              and convenience outlets.

3.2.23        CLEC and PACIFIC will complete an acceptance walk through of all
              collocated space requested from PACIFIC. Exceptions that are
              noted during this acceptance walk through shall be corrected by
              PACIFIC within five (5) days after the walk through. The
              correction of these exceptions from the original collocation
              request shall be at PACIFIC's expense.

3.2.24        PACIFIC shall provide the following to CLEC:

3.2.24.1      Once the collocation space design has stabilized, PACIFIC shall
              provide non-architectural drawings depicting the exact location
              and dimensions of the collocated space and any physical
              obstructions.

3.2.24.2      Prior to the second meeting of CLEC and PACIFIC representatives
              scheduled to plan implementation of an CLEC collocation request
              ("Second Customer Implementation Meeting"), PACIFIC shall provide
              Telephone Equipment drawings depicting the exact location, type,
              and cable termination requirements (i.e. connector type/number and
              type of pairs, naming convention, etc.) for PACIFIC Point of
              Termination Bay(s)



<PAGE>   119

                                                                   Attachment 10
                                                                          Page 6



3.2.24.3      Prior to the Second Customer Implementation Meeting, PACIFIC shall
              provide drawings depicting the exact path, with dimensions, for
              CLEC's fiber ingress/egress into the collocated space.

3.2.24.4      Prior to the Second Customer Implementation Meeting, PACIFIC shall
              provide power cabling connectivity information, including
              drawings, identifying the sizes and number of power feeders.

3.2.25        PACIFIC will provide access to CLEC to the PACIFIC Point of
              Termination bays where cabling from CLEC's collocated space is
              terminated for connection to PACIFIC tie pairs.

3.2.26        PACIFIC shall provide positive confirmation to CLEC when
              construction of CLEC Collocated space is underway. No later than
              the Second Customer Implementation Meeting, PACIFIC shall notify
              CLEC of the scheduled completion and turnover dates.

3.2.27        CLEC shall be compensated by PACIFIC for any delays in the
              negotiated completion and turnover dates which create expenditures
              or delays to CLEC.

3.2.28        PACIFIC shall provide the following information to CLEC no later
              than the First Customer Implementation Meeting:

3.2.28.1      Work restriction guidelines.

3.2.28.2      PACIFIC or Industry technical publication guidelines that impact
              the design of PACIFIC collocated equipment.

3.2.28.3      PACIFIC contacts (name and telephone number) for the following
              areas:

3.2.28.3.1    Engineering

3.2.28.3.2    Provisioning

3.2.28.3.3    Billing

3.2.28.3.4    Operations

3.2.28.3.5    Site and/or Building Managers

3.2.28.4      Escalation process for the PACIFIC representatives (names,
              telephone numbers, escalation order) for any disputes or problems
              that might arise pursuant to CLEC's collocation.

3.2.29        Power as referenced in this document refers to any electrical
              power source supplied by PACIFIC for CLEC equipment or Network
              Elements. Power supplied by PACIFIC will support Network Elements
              or CLEC equipment at


<PAGE>   120

                                                                   Attachment 10
                                                                          Page 7



              equipment specific DC and AC voltages. At a minimum, the power
              supplied to CLEC, should be at parity with PACIFIC. Where PACIFIC
              performance, availability, restoration, etc. falls below industry
              standards, PACIFIC shall bring itself into compliance with such
              industry standards as soon as technologically feasible.

3.2.29.1      Central office power supplied by PACIFIC into the CLEC equipment
              area, should be supplied in the form of power feeders (cables) on
              cable racking into the designated CLEC equipment area. The power
              feeders (cables) should efficiently and economically support the
              requested quantity and capacity of CLEC equipment. The termination
              location should be as requested by CLEC. The number of feeder
              cables requested by CLEC, in order to provide maximum reliability
              to customers, is directly dependent upon the power requirements of
              the equipment and facilities collocated by CLEC. The number of
              feeder cables shall be determined by the manufacturer's
              recommendation as provided in equipment specifications.

3.2.29.2      PACIFIC and CLEC will negotiate resolution of CLEC requests for
              specific size and amperage of power feed based on standard
              engineering practices.

3.2.29.3      PACIFIC power equipment supporting CLEC's equipment shall:

3.2.29.3.1    Comply with applicable industry standards (Bellcore, NEBS, IEEE,
              etc.) for equipment installation, cabling practices, and physical
              equipment layout;

3.2.29.3.2    Have redundant power feeds with physical diversity and battery
              back-up at minimum at parity with that provided for similar
              PACIFIC equipment;

3.2.29.3.3    Provide central office ground, connected to a ground electrode
              located within the CLEC collocated space, at a level above the top
              of CLEC equipment +/- 2 feet to the left or right of CLEC's final
              request;

3.2.29.3.4    Provide feeder capacity and quantity to support the ultimate
              equipment layout for CLEC equipment in accordance with CLEC's
              collocation request;

3.2.29.3.5    Provide documentation submitted to and received from contractors
              for any contractor bids for any work being done on behalf of CLEC
              (this includes but is not limited to power supplies, and cage
              construction);

3.2.29.3.6    Provide an installation sequence and access that will allow
              installation efforts in parallel without jeopardizing personnel
              safety or existing CLEC services;

3.2.29.3.7    Provide power plant alarms that adhere to Bell Communication
              Research (Bellcore) Network Equipment-Building System (NEBS)
              standards TR-EOP-000063; and



<PAGE>   121

                                                                   Attachment 10
                                                                          Page 8



3.2.29.3.8    Provide cabling that adheres to Bell Communication Research
              (Bellcore) Network Equipment-Building System (NEBS) standards
              TR-EOP-000063.

3.2.29.4      PACIFIC will provide CLEC with written notification within ten
              (10) business days of any scheduled AC or DC power work or related
              activity in the collocated facility that will cause an outage or
              any type of power disruption to CLEC equipment located in PACIFIC
              facility. PACIFIC shall provide CLEC immediate notification by
              telephone of any emergency power activity that would impact CLEC
              equipment.

3.2.29.5      PACIFIC employees with keys to the collocation area will be
              permitted to enter the CLEC collocated space only during an
              emergency, or for annual compliance reviews of the work areas.

3.2.29.6      PACIFIC shall ensure that the collocation equipment areas comply
              with all applicable fire and safety codes.

3.3           TECHNICAL REFERENCES.

              PACIFIC shall provide Collocation in accordance with applicable
              published technical references.

4.            RIGHTS OF WAY (ROW), CONDUITS, POLE ATTACHMENTS

4.1           DEFINITIONS:

4.1.1         A Right of Way (ROW) is the right to use the land or other
              property of another Party to place poles, conduits, cables, other
              structures and equipment, or to provide passage to access such
              structures and equipment. A ROW may run under, on, or above public
              or private property (including air space above public or private
              property) and may include the right to use discrete space in
              buildings, building complexes or other locations.

4.1.2         A conduit is a tube or similar enclosure that may be used to house
              communication or communication-related power cables. Conduit may
              be underground or above ground (for example, inside buildings) and
              may contain one or more inner ducts. An innerduct is a separate
              tube or enclosure within a conduit.

4.1.3         A pole attachment is the connection of a facility to a utility
              pole. Some examples of facilities are mechanical hardware,
              grounding and transmission cable, and equipment boxes.

4.2           GENERAL REQUIREMENTS

4.2.1         PACIFIC shall make ROW, conduit and pole attachments available to
              CLEC through agreements consistent with applicable regulations of
              the FCC and the


<PAGE>   122

                                                                   Attachment 10
                                                                          Page 9



              Commission and this Attachment 10, Section 3, or through tariffs,
              in the event PACIFIC files tariffs covering such facilities.

4.2.2         PACIFIC shall provide CLEC with non-discriminatory and
              competitively neutral access, on a first-come, first-served basis,
              to ROW, conduit, ducts, pole attachments and entrance facilities
              that PACIFIC owns or controls.

4.2.3         Upon request, PACIFIC shall provide CLEC reasonable access on a
              non-discriminatory and competitively neutral basis to building
              entrance facilities (including but not limited to cable vault,
              conduit, equipment rooms and telephone closets that are owned or
              controlled by PACIFIC, provided the security of PACIFIC's
              facilities is maintained at all times. For some locations, CLEC
              personnel must be escorted, and the parties will negotiate a
              reasonable arrangement, including administrative costs, if any,
              for such escorted access.

4.2.4         PACIFIC may not favor itself in granting access to a ROW, conduit
              or pole attachment. PACIFIC shall not deny a request from CLEC for
              access to a ROW, conduit or pole attachment on the basis that such
              space is reserved for PACIFIC's future business needs, except as
              provided in Sections 4.2.5, 4.2.5.1 and 4.2.6.

4.2.5         PACIFIC may reserve capacity for projects for which it has
              undertaken engineering studies meeting the requirements of Section
              4.2.5.1, with a view toward initiation of physical construction
              activities within six (6) months after the date of CLEC's request
              or within eighteen (18) months after the date of CLEC's request if
              PACIFIC can demonstrate a definitive schedule for completion of
              the project with eighteen (18) months and that it is not possible
              to commence construction within six (6) months due to action
              required by others.

4.2.5.1       At CLEC's request in the event PACIFIC denies an CLEC request for
              access pursuant to Section 4.2.5, the parties shall supply to each
              other within thirty (30) days of the denial, subject to Section 18
              of this Agreement, copies of their respective engineering studies
              relating to the disputed space. PACIFIC shall prevail in its
              denial of space to CLEC only if PACIFIC's engineering studies have
              the same or greater level of detail and completeness as CLEC's
              studies. The parties shall meet and confer in an effort to reach
              an agreement that PACIFIC's engineering studies meet this
              standard. If the parties fail to agree, either Party may invoke
              the alternative dispute resolution process set forth in Attachment
              3.

4.2.6         The duties of PACIFIC described in Sections 4.2.5 and 4.2.5.1
              shall be subject to expansion or contraction in accordance with
              rules adopted by the Commission that constitute regulation of
              rates, terms and conditions for pole attachments within the
              meaning of Section 224(c)(3) of the Act.




<PAGE>   123

                                                                   Attachment 10
                                                                         Page 10



4.2.7         PACIFIC may designate a duct in a mixed cable use environment or
              innerduct in an all fiber environment for maintenance purposes,
              for the benefit of all users, subject to Sections 4.2.7.1.4.2.7.2
              and 4.2.7.3:

4.2.7.1       PACIFIC may designate for maintenance purposes one duct in a
              multi-duct trough.

4.2.7.2       PACIFIC may designate for maintenance purposes one innerduct in a
              multi-innerduct trough.

4.2.7.3       Where a trough contains both ducts and innerducts, PACIFIC may
              designate one duct for maintenance purposes.

4.2.7.4       No Party shall use a duct or innerduct designated by PACIFIC for
              maintenance under Sections 4.2.7.1, 4.2.7.2 or 4.2.7.3, except for
              maintenance purposes.

4.2.8         In cases where PACIFIC reasonably believes that there is
              insufficient capacity to grant a request from CLEC for access to a
              ROW, conduit or pole attachment, PACIFIC must take all reasonable
              steps to accommodate CLEC's request and explore potential
              accommodations in good faith with CLEC.

4.2.9         In the event of an emergency affecting ROW, conduit or pole
              attachments made available by PACIFIC to CLEC, PACIFIC shall
              follow the mutually agreed upon Emergency Restoration Procedures
              attached to the Attachment 10 as Exhibit A.

4.2.10        PACIFIC shall provide to CLEC the names, numbers of the regional
              Single Points of Contact (SPOC) for administering all structure
              lease and ROW agreements within each defined geographical area.

4.3           APPLICATIONS FOR SPACE

4.3.1         PACIFIC will accept or reject in writing as soon as possible, but
              in any event within forty-five (45) days, CLEC's written request
              for access to PACIFIC's conduit or poles. PACIFIC's failure to
              respond within that time period shall be deemed a rejection of
              CLEC's request.

4.3.2         If PACIFIC denies an application by CLEC for conduit or pole
              space, its denial must be specific, and include all relevant
              evidence or information supporting the denial.

4.4           REQUESTS FOR DRAWINGS

4.4.1         At CLEC's request, PACIFIC shall provide CLEC with detailed
              engineering records and drawings of conduit, poles and other ROW
              paths in selected areas as specified by CLEC within a reasonable
              time frame.



<PAGE>   124

                                                                   Attachment 10
                                                                         Page 11



4.4.2         PACIFIC shall allow personnel designated by CLEC to examine
              conduit system or pole line diagrams at PACIFIC's offices,
              provided that, for security reasons, a separate room is available
              for such examination. PACIFIC will make copies of such prints for
              CLEC at CLEC's expense, or a mutually agreed upon third party will
              be permitted to examine the diagrams.

4.5           PRE-ORDER REQUESTS FOR INFORMATION

4.5.1         CLEC may submit a written request for information to PACIFIC
              before submitting an application for conduit or pole space in a
              specified location.

4.5.2         PACIFIC shall provide information regarding the availability and
              condition of conduit or pole attachments within ten (10) business
              days of CLEC's written request for a records based answer and
              twenty (20) business days of CLEC's request for a field based
              answer. In the event CLEC's written request seeks information
              about the availability of more than five (5) miles of conduit or
              more than five hundred (500) poles, PACIFIC shall (1) provide an
              initial response within ten (10) business days; (2) use reasonable
              best efforts to complete its response within thirty (30) business
              days; and (3) if PACIFIC is unable to complete its response within
              thirty (30) business days or if the parties are unable to agree
              upon a mutually satisfactory long time period for PACIFIC's
              response, PACIFIC will hire outside contractors at CLEC's expense,
              not to exceed PACIFIC's customary charge for the same work,
              provided that before proceeding with such outside hiring, PACIFIC
              shall provide to CLEC the contractor's work order and hourly rate.

4.5.3         CLEC shall have the option to be present at the field based survey
              and PACIFIC shall provide CLEC at least twenty-four (24) hours
              notice prior to start of such field survey. By prior arrangement,
              PACIFIC shall allow CLEC personnel, accompanied by a PACIFIC
              escort, to enter manholes and view pole structures.

4.6           MAKE READY WORK

4.6.1         PACIFIC shall complete the "make ready work" required on poles or
              within conduit to enable CLEC to install its facilities. This work
              shall be accomplished by PACIFIC at a reasonable cost within
              thirty (30) business days, except that if PACIFIC requires longer
              than thirty (30) business days or if the parties are unable to
              agree upon a mutually satisfactory longer time period for
              completion of the make ready work, outside contractors may be
              hired at CLEC's expense to do the work. In that event, PACIFIC and
              CLEC shall confer and agree which Party shall hire the
              contractors. If CLEC hires the contractors, they must meet
              PACIFIC's reasonable standards. If PACIFIC hires the contractors,
              before proceeding with the work, PACIFIC shall provide to CLEC the
              contractor's work order and hourly rate, which shall not exceed
              PACIFIC's customary charge for the same work.



<PAGE>   125

                                                                   Attachment 10
                                                                         Page 12



4.7           POLE ATTACHMENTS

4.7.1         Pole Attachments will be placed in the space on the pole
              designated for communications use. This space is generally located
              below electric supply circuits and excludes the neutral space
              between the electrical and communication space.

4.7.2         PACIFIC shall not attach, or permit other entities to attach,
              facilities on existing CLEC facilities without CLEC's prior
              written consent, except that such consent shall not be required
              for attachments to facilities such as arms and brackets that are
              designed for more than one cable.

4.7.3         CLEC may, at its option, make pole attachments using CLEC or
              CLEC-designated personnel. CLEC shall follow the methods and
              procedures for making pole attachments set forth in Commission
              General Order No. 95 and any additional standards provided to CLEC
              by PACIFIC.

4.8           CONDUITS:

4.8.1         To the extent that space is available as reasonably determined by
              PACIFIC, PACIFIC shall provide CLEC space in manholes for racking
              and storage of cable and other materials as requested by CLEC on a
              nondiscriminatory, first-come; first-served basis.

4.8.2         PACIFIC shall remove any retired cable from its conduit at CLEC's
              expense within a reasonable period of time if necessary to make
              conduit space available for CLEC.

4.8.3         Upon prior notice to PACIFIC, CLEC may conduct maintenance
              procedures in conduit space leased from PACIFIC. PACIFIC may
              dispatch a PACIFIC technician at CLEC's expense to oversee CLEC's
              work.

4.8.4         PACIFIC shall not restrict, withhold or unreasonably delay any
              modifications to conduit systems necessary to allow access to
              and/or egress from such systems, provided that CLEC must obtain
              certification of a professional structural engineer for
              modifications to post-1960 structures ensuring that the
              modifications will not adversely impact the structural integrity
              of the manhole.

4.8.5         Subject to accepted industry safety and engineering standards,
              PACIFIC will permit manhole interconnections, breaking out of
              PACIFIC manholes and breaking out of PACIFIC conduit by CLEC.
              PACIFIC may not limit new duct entrances to pre-cast knockouts,
              provided that CLEC must obtain certification of a professional
              structural engineer for modifications to post 1960 structures
              ensuring that the modifications will not adversely impact the
              structural integrity of the manhole.





<PAGE>   126

                                                                   Attachment 10
                                                                         Page 13



4.9           INNERDUCTS

4.9.1         PACIFIC will permit CLEC, on a first-come, first-served basis, to
              license the use of innerducts in ducts in which PACIFIC already
              occupies an innerduct as long as one spare innerduct for
              maintenance purposes remains available. If an innerduct licensed
              by CLEC becomes defective, CLEC may use the spare maintenance
              innerduct as long as CLEC repairs the defective innerduct for use
              as a new maintenance spare as soon as possible.

4.9.2         Where spare innerduct does not exist, PACIFIC shall allow CLEC to
              install innerduct in a spare PACIFIC conduit, provided that CLEC
              complies with applicable law and PACIFIC's construction standards.

4.10          Access to Private Easements

4.10.1        PACIFIC shall not block any third party assignment of ROW to CLEC.

4.10.2        To the extent space is available, PACIFIC shall provide access to
              ROWs it has obtained from a third party to CLEC on a
              nondiscriminatory, first-come, first-served basis, provided that
              any underlying agreement with such third party permits PACIFIC to
              provide such access, and provided that CLEC agrees to indemnify
              PACIFIC for any liability arising out of such access or use.

4.10.3        PACIFIC will, upon request by CLEC, grant CLEC access to any
              private easement held by PACIFIC, in a mutually agreeable form of
              sub-easement, assignment or other appropriate access. PACIFIC's
              charge for such access shall be a pro rata portion of (a) the
              charge paid by PACIFIC to the grantor of the easement and (b) any
              other documented administrative and engineering costs incurred by
              PACIFIC in obtaining the original easement, both of which shall be
              determined on a case-by-case basis and calculated by taking into
              account (i) the size of the area to be used by CLEC and (ii) the
              number of users of PACIFIC's easement. CLEC shall also pay the
              reasonable documented administrative cost incurred by PACIFIC in
              processing such requests for access.

4.11          DISPUTE RESOLUTION

4.11.1        If the parties are unable to agree on a matter involving access by
              CLEC to a ROW, conduit, innerducts, pole, entrance facility or
              private easement owned or controlled by PACIFIC, either Party may
              submit the matter to the dispute resolution process set forth in
              Attachment 3 to this Agreement or may invoke applicable dispute
              resolution procedures described in the Act and the FCC's First
              Interconnection Order, sections 1217 through 1231.



<PAGE>   127

                                                                   Attachment 10
                                                                      Appendix A
                                                                          page 1




                          EMERGENCY RESTORAL PROCEDURES

GENERAL            In the event of an emergency, restoration procedures may be
                   affected by the presence of CLEC facilities in or on PACIFIC
                   structures. While PACIFIC maintains no responsibility for the
                   repair of damaged CLEC facilities (except under a special
                   maintenance contract), it must nonetheless control access to
                   CLEC structures if restoral of affected facilities is to be
                   achieved in an orderly fashion.

PRIORITIZING       Where PACIFIC and CLEC are involved in emergency restorals,
                   access to PACIFIC's structures will be controlled by
                   PACIFIC's Maintenance District Manager or his/her on-site
                   representative according to the following guidelines:

SERVICE DISRUPTIONS/OUTAGES


          -        While exercising its right to first access, PACIFIC should
                   grant nondiscriminatory access to all occupants in or on its
                   facilities and every effort should be made to accommodate as
                   many occupants as is reasonably safe. Therefore, reasonable,
                   simultaneous access will not be denied unless public or other
                   safety considerations would prohibit such access.

          -        Where simultaneous access is not possible, access will next
                   be granted according to longevity in/on the structure (i.e.,
                   first in time, first in right). Where longevity in the
                   structure cannot be ascertained, access will be prioritized
                   on a first come, first served basis.


SERVICE AFFECTING


          -        While exercising its right to first access, PACIFIC should
                   grant nondiscriminatory access to all occupants in or on its
                   facilities and effort should be made to accommodate as many
                   occupants as is reasonably safe. Therefore, reasonable,
                   simultaneous access will not be denied unless public or other
                   safety considerations would prohibit such access.

          -        Where simultaneous access is not possible, access will next
                   be granted to occupants according to the level of damage to
                   its facilities and the likelihood that damage will result in
                   service disruption. Where likelihood that damage will result
                   is not clearly discernible, access will be granted according
                   to longevity in/on the structure (i.e., first in time, first
                   in right).



<PAGE>   128

                                                                   Attachment 10
                                                                      Appendix A
                                                                          page 2



          -        Where longevity in the structure cannot be ascertained,
                   access will be prioritized a first come, first served basis.


POINT OF CONTACT   When an emergency situation arises which necessitates CLEC
                   access to a manhole after PACIFIC's normal business hours,
                   CLEC should call PACIFIC's Emergency Control Center (ECC).
                   All calls during normal business hours must be directed to
                   the appropriate PACIFIC Single Point of Contact (SPOC). For
                   after-hours calls, PACIFIC's ECC will contact the Maintenance
                   Center responsible for after-hours coverage of the affected
                   area. The maintenance supervisor contacted by the ECC will
                   return CLEC's call and will arrange for access with on-call
                   maintenance field personnel during the emergency condition.



<PAGE>   129

                                                                   Attachment 10
                                                                      Appendix B
                                                                          page 1


1.       As used in this Agreement, Remote Switching Module or "RSM" means
         telecommunications equipment that provides switching network, line and
         trunk interfaces, and the capability to perform call processing when
         isolated from a required host switch. The "host switch," which must be
         provided by CLEC but not in Pacific's premises, is linked to and
         controls the RSM, and provides customer feature control, interoffice
         trunking, NPA-NXX routing and coordination of one or more RSMs.

2.       RSMs shall be placed exclusively for the purpose of access to Pacific
         unbundled network elements purchased by CLEC. No RSM shall be used to
         perform switching other than between lines served directly by the RSM,
         and between the RSM and its host switch located on CLEC premises. No
         direct trunks may be established between the RSM and another carrier's
         switch(es). Further, RSMs shall not be used to provide "information
         services" or "enhanced services," as those terms have been defined by
         applicable federal statutes and decisions, including those of the FCC.

3.       CLEC shall not be permitted to install its own power plant for use in
         connection with collocated RSM equipment. CLEC shall obtain all
         necessary AC or DC power feeds from Pacific according to the terms set
         forth in Schedule Cal P.U.C No. 175-T, Section 16.4. Any power
         requirements beyond those provided for in the above tariff shall be
         provided by Pacific to CLEC on an individual case basis.

4.       Pacific shall not be obligated to monitor any alarms installed by CLEC,
         other than environmental alarms (i e.: those that monitor conditions of
         the equipment room, rather than the RSM itself).

5.       CLEC's RSM equipment shall be grounded in such a manner as to insure
         that such equipment shall cause no harm nor interference with Pacific
         network facilities and equipment.

6.       CLEC shall list all RSMs it intends to place in its physical
         collocation space pursuant to this Agreement on each Application for
         Physical Collocation. Because of space limitations RSM collocation is
         not permitted in Shared Space collocation arrangements.

7.       The placement of RSMs in physical collocation space shall comply fully
         with all applicable physical co!location technical publication(s)
         referenced in the Interconnection Agreement.

8.       In no event shall Pacific be obligated to provide access for the RSM
         and equipment described herein or substantially similar facilities in a
         virtual collocation arrangement, whether under contract, tariff or
         otherwise. The Parties agree that this RSM Agreement does not
         constitute, and shall not be asserted to constitute, an admission or
         waiver or precedent with any state commission, the FCC, any other
         regulatory body or any court, or in





<PAGE>   130

                                                                   ATTACHMENT 10
                                                                      APPENDIX B
                                                                          page 2



         any other forum that Pacific has agreed or acquiesced that the RSM
         equipment addressed in this Agreement is "equipment necessary for
         interconnection or access to unbundled network elements" under 47
         U.S.C. Section 251(c) (6). Pacific understands and agrees that CLEC
         remains free to argue that RSM equipment, in general, is "equipment
         necessary for interconnection or access to unbundled network elements"
         under 47 U.S.C. Section 251(c) (6).

9        Pacific shall have the right, upon 5 business days notice to CLEC, to
         inspect CLEC' physical and software configuration of CLEC's RSM for
         purposes of confirming CLEC's compliance with the terms of this RSM
         agreement. CLEC shall cooperate and provide information as requested by
         Pacific to assist with the purposes of this inspection. Any dispute
         concerning such inspections, or Pacific's right to any particular
         inspection, shall be referred to the Alternative Dispute Resolution
         procedures set forth in Attachment 3 to the Interconnection Agreement.

10.      This Agreement shall expire or be terminated in the same time frames
         and in the same manner as provided for in the Interconnection
         Agreement.

<PAGE>   131


                                 ATTACHMENT 11



                           PROVISIONING AND ORDERING


<PAGE>   132

                                                                   ATTACHMENT 11


                               TABLE OF CONTENTS


PROVISIONING AND ORDERING

<TABLE>
<S>  <C>                                                                  <C>
1.   Network Deployment.................................................   1
2.   General Provisioning Requirements..................................   1
3.   Specific Provisioning Process Requirements.........................   2
4.   General Ordering Requirements......................................   4
5.   Ordering Interfaces................................................   5
6.   PACIFIC Provision of Information...................................   6
7.   Order Format and Data Elements for Individual Network
     Elements and Combinations..........................................   6
8.   Performance Requirements...........................................  11
9.   Account Maintenance................................................  13

Appendix A:

     Local Service Request Form

Appendix B:

     Unbundled Network Element Provisioning Format

Appendix C:

     Principles for Implementing Electronic Interfaces for Operational
     Support Systems

     Exhibit 1 to Appendix C:

          Operation Support Systems Implementation Dates
</TABLE>
<PAGE>   133
                                                                   Attachment 11
                                                                          Page 1

                           PROVISIONING AND ORDERING

1.   NETWORK DEPLOYMENT

     Throughout the term of this Agreement, the quality of the technology, 
     equipment, facilities, processes and techniques (including, without 
     limitation, such new architecture, equipment, facilities, and interfaces 
     as PACIFIC may deploy) that  PACIFIC provides to CLEC under this 
     Agreement must be at least equal in quality to that provided by PACIFIC to 
     itself.

2.   GENERAL PROVISIONING REQUIREMENTS

2.1  Subject to the requirements of Attachment 6, CLEC may order Network 
     Elements either individually or in any combination. Combinations 
     ("Combinations") consist of multiple Network Elements to enable CLEC to 
     provide service in a geographic area or to a specific customer and that 
     are placed on the same order by CLEC. To the extent that Combinations or 
     unbundled Network Elements are related and logically associated with one 
     another, Combinations may be ordered with a single order.

2.2  Combinations shall be identified and described by CLEC in this Agreement,
     so that they can be ordered and provisioned together and shall not require 
     the enumeration of each Network Element within that Combination on each 
     provisioning order.

2.3  PACIFIC shall provide all provisioning services to CLEC during the same 
     business hours that PACIFIC provisions similar services for its end user 
     customers. Currently, those hours are Monday through Friday from 8:00 a.m. 
     to 5:30 p.m. PST. CLEC may request PACIFIC to provide Sunday, holiday, 
     and/or off-hour provisioning services. If CLEC requests that PACIFIC 
     perform provisioning services at times or on days other than as 
     required in the preceding sentence, PACIFIC shall provide CLEC a quote for 
     such services, consistent with PACIFIC's rates and terms for similar 
     services to PACIFIC's end user customers, at the rates set forth in 
     Attachment 8. If CLEC requests any service for which a quote is not set 
     forth in Attachment 8, PACIFIC will provide CLEC a quote based on state 
     wide average rates for the services performed. If CLEC accepts PACIFIC's 
     quote, PACIFIC shall perform such provisioning services.

2.4  PACIFIC's LISC is the Single Point of Contact (SPOC) for all ordering 
     contacts and order flow involved in the purchase of Network Elements or 
     Combinations. The SPOC shall provide an electronic  interface twenty-four 
     (24) hours a day, seven (7) days a week for all ordering order flows at 
     parity with that PACIFIC provides to itself or affiliates. Currently, 
     several systems

                                                                        10/16/98
<PAGE>   134

                                                                   Attachment 11
                                                                          Page 2


     are less than twenty-four (24) hours per day, seven (7) days per week. 
     These systems, without limitation, and their current hours, are as follows:

          1.   CESAR/CLEO, Monday through Friday, 7:00 a.m. to 11:00 p.m.,
               Saturday 7:00 a.m. through 5:00 p.m.;

          2.   PREMIS, Monday through Saturday, 6:00 a.m. through 11:00 p.m.;

          3.   BOSS, Monday through Saturday, 6:00 a.m. through 11:00 p.m.;

          4.   SORD, Monday through Friday, 6:00 a.m. through 11:00 p.m.,
               Saturday 6:00 a.m. through 7:00 p.m.;

          5.   Scheduled Maintenance, one Sunday per month;      

          6.   Scheduled changes to all systems, e.g., CESAR, 7:00 p.m. every
               third Wednesday, etc.

2.5  The SPOC shall also provide to CLEC a toll-free nation-wide telephone 
     number (operational during the same hours as PACIFIC provides to its own 
     end user customers, currently from 8:00 a.m. to 5:30 p.m., Monday through 
     Friday) which will be answered by capable staff trained to answer 
     questions and resolve problems in connection with the provisioning of 
     Local Service, Network Elements or Combinations.

2.6  PACIFIC and CLEC shall mutually agree upon interface contingency and 
     disaster recovery plans for the ordering and provisioning of Local 
     Service, Network Elements or Combinations.

2.7  PACIFIC will recognize CLEC as the customer of record of all Network 
     Elements or Combinations ordered by CLEC and will send all notices, 
     invoices and pertinent information directly to CLEC.

3.   SPECIFIC PROVISIONING PROCESS REQUIREMENTS

3.1  Subject to Attachment 6, when CLEC orders the LSNE (either individually or 
     as part of a Combination), CLEC may also obtain all currently deployed 
     features and functions from the specified PACIFIC switch. If CLEC requests 
     a feature or function that is technically available but not deployed in a 
     particular switch, PACIFIC shall provide CLEC a quote pursuant to Section 
     1.6 of Attachment 6. If CLEC accepts the quote, Pacific shall deploy the 
     feature pursuant to the time frames and charges set forth in the quote. In 
     the event that the Parties cannot agree on the deployment of, or price for 
     such features, CLEC may seek Alternative Dispute Resolution pursuant to 
     Attachment 3 of the Agreement.

3.2  When requested by CLEC and at CLEC's option, Pacific will schedule 
     installation appointments (PACIFIC employee dispatch) with PACIFIC's 
     representative on the line with CLEC's representative or provide CLEC
     access

 
<PAGE>   135
                                                                   Attachment 11
                                                                          Page 3

        to Pacific's scheduling system through a mutually agreed upon
        Electronic Interface. PACIFIC will provide appropriate training to all 
        PACIFIC employees who may communicate, either by telephone or 
        face-to-face, with CLEC Customers. Such training shall instruct the 
        PACIFIC employees not to disparage or discriminate against CLEC, its 
        products or services and shall comply with the branding requirements of 
        this Agreement.

3.3     Upon request from CLEC, PACIFIC will provide an intercept referral 
        message for LSNE that includes any new CLEC telephone number, for 
        residential customers for three (3) months, and business customers for 
        twelve (12) months, and PACIFIC will provide directory updates at the 
        next publication. This intercept referral message shall be approved by 
        CLEC and shall be similar in format to the intercept referral messages 
        currently provided by PACIFIC for its own end-users. Custom messages or 
        extension in duration of the referral shall be subject to the charges 
        set forth in Attachment 8.

3.4     PACIFIC will provide CLEC with a Firm Order Confirmation (FOC) for each 
        order, within four (4) Business hours of PACIFIC's receipt of each 
        accurate and complete electronically submitted order. In the absence of 
        an electronically submitted order, the time frame for a FOC for 
        manually received orders will be as mutually agreed. In the case of a 
        Network Elements or Combinations, the FOC must contain an enumeration 
        of CLEC's ordered Network Elements or Combinations (and the specific 
        PACIFIC naming convention applied to that Network Element or 
        Combination), features, options, physical interconnection, quantity, 
        and PACIFIC commitment date for order completion (Committed Due Date).

3.5     Upon completion of the order, PACIFIC will provide CLEC electronically 
        (unless otherwise notified by CLEC) with an Order Completion per order 
        that states when that order was completed. PACIFIC shall respond with 
        specific order detail as enumerated on the FOC and shall state any 
        additional charges (e.g. Time and Cost charges) up to a previously 
        agreed upon limit associated with that order.

3.6     For new Network Elements developed based on Section 1.6 of Attachment 
        6, the Parties will mutually agree on the testing to be used.

3.7     When CLEC electronically orders a Local Service, Network Element or 
        Combination, PACIFIC shall provide notification electronically of any 
        instances when (1) PACIFIC's Committed Due Dates are in jeopardy of not 
        being met by PACIFIC on any Network Element or feature contained in any 
        order for Local Service, Network Elements or Combinations or (2) an 
        order contains Rejections/Errors in any of the data element(s) fields. 
        Such notice will be made as soon as the jeopardy or reject is 
        identified. When NDM or EBI is available and CLEC elects to place a 
        manual order, PACIFIC may notify

<PAGE>   136

                                                                   Attachment 11
                                                                          Page 4


       CLEC of a jeopardy or reject condition via facsimile or telephone call to
       the CLEC contact identified on the order. In all cases, PACIFIC shall
       concurrently indicate its new committed due date.

3.8    At CLEC's request, PACIFIC will perform co-operative testing with CLEC 
       (including trouble shooting to isolate any problems) to test Local 
       Service. Network Elements or Combinations purchased by CLEC in order to 
       identify any performance problems identified at turn-up of the service.

3.9    PACIFIC shall inform CLEC if a customer action results in a reassignment 
       of an AIN trigger from an CLEC AIN application to some other service 
       provider's application. Such notification shall be completed within 
       twenty-four (24) hours of the action via electronic interface as 
       described in the Account Maintenance requirements specified in this 
       Attachment.

3.10   Testing of AIN based services in PACIFIC's AIN test laboratory will 
       identify feature interactions with existing switch-based or other types
       of services. PACIFIC will provide CLEC with a list of feature 
       interactions uncovered during testing of any services. Disclosure of 
       feature interactions to CLEC's end user will be CLEC's sole 
       responsibility.

3.11   PACIFIC shall provision correct AIN triggers based on services ordered 
       by CLEC on its provisioning order.

4.     GENERAL ORDERING REQUIREMENTS

4.1    Upon CLEC's request through a Suspend/Restore Order for LSNE or a 
       Combination containing LSNE, PACIFIC shall suspend or restore the 
       functionality of any Network Element or Combination to the extent 
       technically feasible. PACIFIC shall implement any restoration priority 
       on a per Network Element or Combination basis in a manner that conforms 
       with CLEC requested priorities and any applicable regulatory policy or 
       procedures. The charges for a Suspend/Restore are set forth in 
       Attachment 8.

4.2    PACIFIC shall provide to CLEC the functionality of blocking calls (e.g., 
       900, 976 or international calls) by line.

4.3    Subject to Section 271(e)(2)(B), when intraLATA presubscription is 
       permissible in California, when ordering a local Switching Element, CLEC 
       may order from PACIFIC separate interLATA and intraLATA routing (i.e., 2 
       PICs where available) on a line.

4.4    As directed by CLEC, when CLEC orders a Network Element or Combination, 
       all pre-assigned trunk or telephone numbers currently associated with 
       that Network Element or Combination shall be retained, if directed by 
       CLEC, without loss of feature capability and without loss of associated 
       ancillary 

<PAGE>   137
                                                                   Attachment 11
                                                                          Page 5


     functions including, but not limited to, Directory Assistance and 911/E911 
     capability, unless technically infeasible.

4.5  When CLEC orders Network Elements or Combinations that are currently 
     interconnected and functional, such Network Elements and Combinations will 
     remain interconnected and functional without any disconnection or 
     disruption of functionality. This shall be known as Contiguous Network 
     Interconnection of Network Elements. There shall be no additional charge 
     for such interconnection.

5.   ORDERING INTERFACES

5.1  PACIFIC shall provide to CLEC an Electronic Interface (EI) for 
     transferring and receiving orders, FOCs Service Completions, and other 
     provisioning data and materials as set forth in Appendix C and at the 
     rates set forth in Attachment 8.

5.2  When ordering LSNE, subject to the implementation schedule in this 
     Agreement, CLEC's representatives will have real-time access to PACIFIC 
     customer information systems which will allow the CLEC representatives to 
     perform the following tasks:

          1.   Obtain customer profile, including customer name, billing and 
               residence address, billing telephone number(s), and 
               identification of features and services subscribed to by 
               customer. Such access shall be governed by Sections 5.5.1.1 and 
               5.5.1.2 of Attachment 5 to this Agreement, depending on whether 
               the information accessed is for a residence or business customer.

          2.   Obtain information on all features and services available, in 
               end-office where customer is provisioned;

          3.   Enter the order for the desired features and services;

          4.   Provide an assigned telephone number (if the customer does not 
               have one assigned). Reservation and aging of these numbers 
               remain PACIFIC's responsibility;

          5.   Establish the appropriate directory listing;

          6.   Provide service availability dates to the customer;

<PAGE>   138
                                                                   Attachment 11
                                                                          Page 6


          7.   Provide information regarding dispatch/installation schedule, if 
               applicable;

          8.   Order intraLATA toll and access to long distance service in a 
               single, unified order;

          9.   Suspension, termination, or restoral of service where 
               technically feasible."

6.   PACIFIC PROVISION OF INFORMATION

6.1  PACIFIC shall provide to CLEC upon request:

     1.   A list of all services and features technically available from each 
          switch that PACIFIC may use to provide a Local Switching Element, by 
          switch CLLI;

     2.   A listing by street address detail, of the service coverage area of 
          each wire center;

     3.   All engineering design and layout information for each Network 
          Element or Combination, in response to an order for the Network 
          Element or Combination;

     4.   A listing of all technically available functionalities for each 
          Network Element or Combination, in response to an order for the 
          Network Element or Combination;

     5.   As long as PACIFIC remains the code administrator for California, 
          notice of any NPA relief planning meetings so that CLEC may 
          participate in those meetings to reach industry consensus on NPA code 
          relief.

7.   ORDER FORMAT AND DATA ELEMENTS FOR INDIVIDUAL NETWORK ELEMENTS AND 
     COMBINATIONS

7.1  In ordering Network Elements or Combinations, CLEC and PACIFIC will 
     utilize standard industry order formats and data elements developed by the 
     Alliance for Telecommunications Industry Solutions (ATIS), including 
     without limitation the Order and Billing Forum (OBF). Industry standards 
     do not currently exist for the ordering of all Network Elements or 
     Combinations. Therefore, until such standard industry order formats and 
     data elements are developed by the ATIS for a particular Network Element 
     or Combination, CLEC and PACIFIC will mutually agree to a format to be 
     used to address the specific data requirements necessary for the ordering 
     of those Network Elements or Combinations. There currently exist OBF 
     formats for INP and the following Network Elements: Links, Ports, and 
     Transport. When an ATIS standard or

<PAGE>   139
                                                                   Attachment 11
                                                                          Page 7

        format is subsequently adopted, the Parties will use such standard or
        format in lieu of any standard or format set forth in this Attachment,
        unless the Parties mutually agree to continue to use the standard or
        format set forth herein.

7.2     CLEC and PACIFIC shall agree upon the appropriate ordering and 
        provisioning codes to be used for each Network Element or Combination. 
        These codes shall be known as data elements.

7.3     Each order for a Network Element or a Combination will contain the 
        following order-level sections, as defined by the OBF or as mutually 
        agreed to by the Parties: Administration, Bill, Contact, and End User 
        Information, e.g., Local Service Request (LSR) form, Access Service 
        Request (ASR) form, End User Information (EU) form.

7.4     CLEC will provide provisioning data in the format defined below when 
        ordering Network Elements or Combinations. First, CLEC will state 
        whether it is ordering a Network Element (one or more of the Network 
        Elements described in this Agreement) or a Combination (multiple 
        Network Elements in the same order). CLEC will then provide data in the 
        following provisioning categories, such data to be provided on the OBF 
        ordering form as completed data fields:

        1.      Activity. The activity field will comply with OBF standards, 
                which currently include Add, Change, Disconnect and Record Only.

                Order Activity Description. For each activity, a further 
                description of the Order Activity may be required. Consistent 
                with OBF standards, Modify, Cancel, Expedite, Coordinated, 
                Suspend and Restore. The preceding Order Activity Descriptions 
                may be applied to any Add, Change, Disconnect or Record Only 
                order. In some cases, more than one of these may apply to a 
                particular order. In addition, Sequence, as defined below, may 
                be added:

                Sequence: The Parties will jointly develop the sequence that 
                will apply when components of the order must be worked in the 
                proper sequence, or when components of the order are 
                sequentially related to components or another order.

        2.      Purpose of Order. The Purpose of Order will contain a brief 
                statement describing the overall purpose of the order (e.g., 
                Add new ISDN loop or build dedicated trunking/transport from 
                local end office to CLEC OSPS 5E).

        3.      Type of Network Element or Combination. The Type of Network 
                Element or Combination category consists of two parts. First, 
                an E (Network Element) or C (Combination) followed by a dash 
                and then the two character code for the Network Element(s) 
                (e.g., E-LS (Local Switching) and C-DT/LS (Combination of 
                Dedicated
             
<PAGE>   140
                                                                   Attachment 11
                                                                          Page 8

     Transport and Local Switching)). Below are the Network Elements and their
     two character codes:

          LL   Local Loop

          ND   Network Interface Device

          DC   Digital Crossconnect System (DCS)

          LS   Local Switching

          OS   Operator Systems (trunking and transport for LSNE)

          CT   Common Transport

          DT   Dedicated Transport

          SS   Signal Transfer Points

          SL   Signaling Link Transport

          DB   SCPs/Databases (LNP, LIDB, Toll Free)

          TS   Tandem Switching

     The parties will mutually agree on the proper Type of Network Element or
     Combination designators for other Network Elements or Combinations, e.g.,
     Operator Services, Directory Services, etc.

4.   Interconnection Locations. This category describes the beginning and
     end-point of the Network Element or Combination. For example, the point of
     termination (POT) may be listed as a switch CLLI, a frame tie down
     location, a channel on a T3, or a customer address. Various types of POT
     are described in the tables shown in Appendix A.

5.   Interconnection Specific. The Interconnection Specific category describes
     the nature of the interconnection and the appropriate relationships within
     the Network Element/Combination. The appropriate type of Interconnection
     Specific is described for each Network Element/Combination in the tables
     shown in Appendix A. The following definitions apply:

     Contiguous: All cross-connects, muxing, cross-office ties, etc. will be
     included between the two interconnection points listed under
     Interconnection Locations so that the Network Element or Combination is
     delivered fully functional.

     Routing: Indicates that routing is party of the necessary interconnection.

     Functionally Inclusive: All functionality as it is defined within
     Attachment 6 of this Agreement as it relates to interconnection 
<PAGE>   141
                                                                   Attachment 11
                                                                          Page 9

                when the Network Element or Combination is provisioned by
                PACIFIC.

        6.      Element Identification. This field includes the precise
                identifier of the Network Element. For example, the identifier
                can be a circuit ID, facility name, switch CLLI, or Working
                Telephone Number.

        7.      Object. The Object identifies the basic unit of the Network
                Element or Combination. Examples include Network Trunk (for the
                Network Element LS) and DS1 (for the Network Element DT). The
                Objects related specifically to each Network Element or
                Combination are provided in the tables shown in Appendix A.

        8.      Quantity/Capacity. This field lists the Quantity/Capacity of
                Objects. For example, for the Local Loop the number "1" in this
                field would indicate that one Local Loop was being ordered. On
                the other hand, for the Object "DT" the number "4" would
                indicate that a capacity of 4 DS1 are being ordered.

        9.      Options. For each Object, there may be numerous Options. This
                category identifies the specific Option of the selected Object.
                In most case, only one Option applies for each Object. The
                specific Options for each Object are contained as shown in
                Appendix A. Examples include 2-wire (for the Object Analog
                Loop), DID (for the Object Customer Trunk) and ESF (for the
                Object DS1).

        10.     Characteristics. For each Option, there may be multiple
                Characteristics that require additional details. This category
                identifies those Characteristics, along with the necessary
                details. The appropriate type of Characteristics are described
                for each Network Element or Combination within the tables shown
                in Appendix A. Examples include ISDN conditioned (for the Option
                2-wire) and TSG (for the option DID).

        11.     Features. This field identifies the Features specific to the
                Network Element/Combination. For example, when the Network
                Element is Local Switching, the CLASS/LASS features would be
                included in this category. CLEC will direct PACIFIC which of
                these features to activate for a specific customer.

        12.     Desired Due Date. This field identifies the date the entire
                order is expected to be completed.

        13.     Due Date Detail. If required, this field identifies interim
                dates (for Combinations where the network Element Due Dates
                differ), and the relationship between the provisioning
                activities internal to the order, and those provisioning
                activities outside the order that may be related. Coordination
                and sequencing requirements will be reflected in this field.
<PAGE>   142
                                                                   Attachment 11
                                                                         Page 10



          14.  Remarks. This field will include any remarks that are related to
               the provisioning order that are not reflected elsewhere.

7.5       When ordering a Network Element (individually or as part of a
          Combination), the interconnection and functionality internal to that
          Network Element will not be specifically ordered by CLEC and will
          automatically be provided by PACIFIC. For example, when ordering the
          element DT (Dedicated Transport), the use of Digital Cross Connects
          that might be necessary to provide the connectivity between two
          interconnection locations will not be described on CLEC's order.

7.6       Examples of the provisioning or OBF format to be used by CLEC when
          ordering certain provisioning activities for individual Network
          Elements are shown in Appendix B.

7.7       CLEC may purchase Network Elements either individually or in
          combinations. Combinations of Contiguous Network Elements can be
          ordered (i) on a case-by-case basis for those Network Elements that
          are customer-specific; or (ii) on a common-use basis for those Network
          Elements that are shared by multiple customers.

7.8       When ordering either customer-specific or common-usage Combinations,
          CLEC may specify the functionality of that Combination without the
          need to specify the configuration of the individual Network Elements
          needed to perform that functionality. For example: CLEC may also
          choose to purchase from PACIFIC a Local Loop and Switching Combination
          which would be comprised of the Loop and Network Element LS (Local
          Switching). This Combination would allow CLEC to purchase switching
          features/such as Class features) and functionalities on a per-customer
          basis.

7.9       Prior to providing local service using unbundled Network Elements or
          Combinations in a specific geographic area or when CLEC requires a
          change of network configuration, CLEC may place an order with PACIFIC
          requiring PACIFIC to prepare certain common-usage elements and
          functionalities for CLEC. CLEC has identified one possible set of
          these elements and functionalities as the Local Switching Conditioning
          Combination. This Combination may be comprised of all or some of the
          following individual Network Elements: LS (Local Switching), CT
          (Common Transport), SS (Signal Transfer Points), DB (SCPs/Databases)
          and TS (Tandem Switching). In order to provide these Network Elements
          and their respective functionalities to CLEC, Pacific shall prepare
          its network for CLEC's use of these common elements by readying each
          necessary switch.

7.10      CLEC may also use unbundled Network Elements to originate and
          terminate toll traffic. CLEC has identified the following two
          Combinations which will allow such functionality: Toll Traffic
          Combination 1, which is comprised of the
<PAGE>   143
                                                                   Attachment 11
                                                                         Page 11



      Network Elements DT (Dedicated Transport) and LS (Local Switching); and
      Toll Traffic Combination 2, which is comprised of DT (Dedicated
      Transport), TS (Tandem Switching), CT (Common Transport) and LS (Local
      Switching).

7.11  There are many additional Combinations which CLEC may choose to order from
      PACIFIC.

8.    PERFORMANCE REQUIREMENTS

8.1   CLEC will specify on each order its Desired Due Date (DDD) for completion
      of that particular order. Standard intervals do not apply to orders under
      this Agreement. PACIFIC will not complete the order prior to the DDD or
      later than the DDD unless authorized by CLEC. If the DDD is less than the
      following Network Element intervals, the order will be considered an
      expedited order.

<TABLE>
            -----------------------------------------------------
                         INTERVALS FOR ORDER COMPLETION
            -----------------------------------------------------
               Network Element                  Number of Days
            -----------------------------------------------------
              <S>                                     <C>
                    LL                                 2
                    LS                                 2
                    OS                                 2
                    DT
              DS0, DS-1, T1.5                          3
               STS-1, DS3/T3                           5
                   OC-3, +                            15
                    SS                                 3
                    SL                                 2
                    DB                                 2
                    TS                                 2
        C-Local Switch Conditioning                   20
                Combination
</TABLE>

8.2   Within two (2) business hours after a request from CLEC for an expedited
      order, PACIFIC shall notify CLEC of PACIFIC's confirmation to complete, or
      not complete, the order within the expedited interval. A Business Hour is
      any hour occurring on a business day between 8:00 a.m. and 5:00 p.m. PST.
<PAGE>   144
                                                                   Attachment 11
                                                                         Page 12


8.3   Once an order has been issued by CLEC and CLEC subsequently requires a new
      DDD that is less than the minimum interval defined, CLEC will issue an 
      expedited modify order. PACIFIC will notify CLEC within two (2) Business 
      Hours of its confirmation to complete, or not complete, the order 
      requesting the new DDD.

8.4   CLEC and PACIFIC will agree to escalation procedures and contacts. 
      PACIFIC shall notify CLEC of any modifications to these contacts within 
      one (1) week of such modifications.

8.5   PACIFIC shall satisfy the following performance standards: (i) at least 
      90% of all orders must be completed by DDD; (ii) at least 98% of all 
      orders must be completed by Committed Due Date; and (iii) at least 99% 
      of all orders will be completed without error.

8.6   CLEC will pay for all additional cost for performance in excess of 
      PACIFIC's intervals for comparable services.

9.    ACCOUNT MAINTENANCE

      PACIFIC AND CLEC agree to the following account maintenance procedures:

9.1   OUTPLOC Transaction Feed

      OUTPLOC means when an CLEC Local Service or LSNE changes from CLEC local
      exchange service to another local exchange carrier. Until approved
      industry standards are available, PACIFIC will notify CLEC using a 9270
      CARE-like electronic record when a customer changes from CLEC Local to a
      new Local Service Provider. PACIFIC will provide 9270 CARE-like records
      six (6) days a week, Monday through Friday (Saturday (when change activity
      occurs)), via the CONNECT: Direct interface. Electronic records will be
      sent within twenty-four (24) hours of the switch being provisioned for
      the customer change. CLEC understands that PACIFIC may send other
      9000 series CARE-like electronic records on CLEC Local customers.

9.2   Change Request Implementation

      PACIFIC will cease billing CLEC effective as of the date of the 
      customer's change request. If there is a delay in PACIFIC's 
      implementation of the customer's change request, PACIFIC will issue a 
      credit to CLEC for any amounts billed to CLEC with respect to that 
      customer following the date of the customer's change request.

9.3   Use of Service Order for PIC-Only Change
<PAGE>   145
                                                                   Attachment 11
                                                                         Page 13


      When an CLEC Local Customer contacts CLEC Local only to request a change
      of Primary Interexchange Carrier (PIC) from one IEC to another IEC,
      PACIFIC will accept the PIC-only change request from CLEC Local on the
      current service order feed. PACIFIC will change its current tariffed rate
      applicable to PIC-only changes.

9.4   IEC PIC Change Request

      PACIFIC will not accept a PIC change request from a Long Distance carrier
      for CLEC Local customers. Beginning December 1996, PACIFIC will return
      such requests to the IEC indicating CLEC's Operating Company Number (OCN)
      on the industry standard 3148 record.



 
<PAGE>   146
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 1

                                   Appendix A
                           Local Service Request Form


The Unbundled Network Elements Service Request Form will be sent with every UNE
and TSR order and is divided into three sections: the Administrative Section,
the Bill Section, and the Contact Section.

The Administrative section is always required and contains such information as
the purchase order number, desired due date, activity, expedite, and related
order numbers.

The Billing section designates the CLEC Billing Account number to be used by the
ILEC and the CLEC billing name and address. This field is to be filled out on
all orders.

The Contact section contains contact information for the Initiator of the order,
the Implementation contact, the design contact, and maintenance contact. For
Loop and Switch orders only the initiator contact person is to be designated,
for Infrastructure provisioning, or customer orders for such things as dedicated
transport, the implementation and design contacts are to be specified.
<PAGE>   147
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 2

Administrative Section:
CCNA____PON__________________VER__SPA__LSR NO________________SC________PG__of__
D/T SENT________DDD___-___-___DFDT_____PROJECT___________________CHC__REQTYP___

ACT__SUP_EXP__EXP REASON________________________AFO____________RTR__CC_________
ENG__ALBR__AGAUTH_DATED______AUTHNM______________________
RPON____________RORD_________SAN______________CLS-SVCS______
LISTING__E911__QTY_____CUSTOMER______________________
_______________________________________________________________________________
BILL SECTION
BI__BAN_______________ACNA______BILLNM_______________________SBILLNM___________
_________
STREET__________________FLOOR____ROOM_____CITY_______________________STATE_____
ZIP CODE_________________BILLCON________________TEL NO_____________________
FAX__________________EMAIL___________VTA___________
_______________________________________________________________________________
Contact Section
INIT__________________TELNO__________FAX_______________EMAIL___________________
STREET__________________FLOOR_____________________ROOM_________________________
CITY__________________STATE____________________ZIP____________________
IMPCON___________________TEL NO_____________________PAGER______________________
ALT IMPCON_________________TEL NO_____________________PAGER____________________
DSGCON___________________DRC_______________________TEL NO___________FAX NO_____
___________________
EMAIL____________________STREET____________________FLOOR____ROOM_____CITY______
____________
REMARKS________________________________________________________________________
_________________________
<PAGE>   148
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 3

                           END USER INFORMATION FORM

The End User Information form is sent with every UNE and TSR customer order is 
used for ordering specific network elements or TSR to provide service for a 
specific customer. It is divided into 5 parts: the Administrative Section, the 
Location and Access Section, the Inside Wiring Section, the Bill Section and 
the Per Customer Element Section.

The Administrative section is used to link subsequent forms to the Unbundled 
Network Element Form. The information in this section is on all of the forms 
that are used for ordering Unbundled Network Elements, either on a footprint 
basis or on an individual customer basis. The Administrative Section contains 
five fields which are required on all forms, these field are: Customer Carrier 
Purchase Order Number (PON), version (VER), Local Service Request Number (LSR 
NO), quantity (QTY), and the page number of (PG_of_). The Administrative 
section will not be discussed on further forms.

The Location and Access form contains the customer name and Address and any 
specific instruction need to access the customer equipment. This section is 
required on all customer orders. The information on this section would be used 
for data base entries such as E911 or DA as well designating the location of 
any customer premises work.

Inside wiring is not an Unbundled Network Elements but is included here for
completeness. This section needs to be filled out only if the ILEC is the inside
wiring vendor. This section is also included to be consistent with the existing
OBF forms. The Bill Section contains the local billing account number and
information for the billing contact.

The Per Customer Network Element Section contains a listing of the specific
Network Elements which are being ordered to serve a specific customer and an
indication of any attached forms which are need for additional information
concerning the ordered Network Elements. Possible customer specific elements
are, the NID, Loop, and Local Switching. The need to provision customer specific
data base information would also be indicated here.
<PAGE>   149
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 4
                              END USER INFORMATION

Administrative Section:
CCNA____PON__________________VER__UNSR NO____REC TPY_____ACT__SPA____QTY_______
____PG_OF_
_______________________________________________________________________________
Location and Access
NAME_________________STREET NO________DIR_____STREET___________________LOCATION
_______________FLOOR___________ROOM____________CITY___________STATE__ZIP_______
______ALT HOUSE#_______________
LCON________________TEL NO_____________________EUMI__ACC_______________________
_______________________________________________________________________________
___________________________________________
OTHER SERVICES___________________OTHER TN__________________
OMIT LISTINGS WHITE PAGES and DA__STREET DIRECTORY___
_______________________________________________________________________________
Inside Wire
WO__WBAN______________________WCON___________________TEL NO____________________
_______________________________________________________________________________
Bill Section
LOCBAN______________________FBI__________________BILL NM_______________________
SBILL NM____________________STREET#________DIR___STREET NAME___________________
FLOOR_____________________LOCATION______________________ROOM_____________CITY__
___________________STATE___ZIP______________________
BILL CONTACT___________________TELENO___________________
_______________________________________________________________________________
Per Customer Element Section:
RESALE       Y/N_ATTACHED FORM_        NID       Y/N_ATTACHED FORM_

                         LOOP           Y/N_ATTACHED FORM_
                         LOOP SWITCH    Y/N_ATTACHED FORM_
                         DATA BASE ENTRY   Y/N_ATTACHED FORM_
<PAGE>   150
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 5

               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

4) LOCAL SWITCHING

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------
<S>           <C>      <C>          <C>          <C>            <C>           <C>        <C>
Activity      Type     Inter-       Inter-       Element ID     Object        Option     Characteristics
(one of)               connection   connection                  (one of)     
                       Location     Specific
- --------------------------------------------------------------------------------------------------------
A,C,D,R       LS       WTN          FUNCTIONALLY WTN            Line (may be  POTS       Signaling
                       Location     INCLUSIVE    TSG            Concentrated  ISDN       Line Class Code
                       CLLI         ROUTING      Designaton     if so         Centrex    WTN
                       Switch CLLI               Switch         designated)              E911
                                                 CLLI                                    Concentration
                                                                                         Ratio
                                                                                         Interface rate
                                                                                          (DS1,DS3)
                                                                                         Interface
                                                                                         protocol
                                                                                          (TR08, TR303)
- --------------------------------------------------------------------------------------------------------
                                                                Non-          POTS       Signaling
                                                                concentrated  ISDN       Line Class Code
                                                                Line          Centrex    WTN
                                                                                         E911
                                                                                         Interface rate
                                                                                         (DS0, DS1, DS3)
- --------------------------------------------------------------------------------------------------------
                                                                Network       SS7        One-way
                                                                Trunk         MF         Two-way
                                                                                         Routing
                                                                                         Screening
                                                                                         TSG
- --------------------------------------------------------------------------------------------------------

</TABLE>



<PAGE>   151
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 6


               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

<TABLE>
- ---------------------------------------------------------------------------------------------------------------
<S>          <C>       <C>            <C>            <C>            <C>            <C>           <C>
Activity     Type      Inter-         Inter-         Element ID     Object         Option        Characteristics
(one of)               connection     connection                    (one of)       (one of)
                       Location       Specific
- ---------------------------------------------------------------------------------------------------------------
                                                                    Customer       DID           Signaling
                                                                    Trunk          DOD           Routing
                                                                                   Two-way       Screening
                                                                                                 TSG
- ---------------------------------------------------------------------------------------------------------------
                                                                    Routing        Operator
                                                                                   Services
                                                                                   Directory

                                                                                   Assistance
                                                                                   Messaging
- ---------------------------------------------------------------------------------------------------------------
                                                                    LNP            RCF           Ported  
                                                                                   DNRI          number(s)
                                                                                   RIPH          Shadow
                                                                                   LERG          number(s)
                                                                                                 Number of call
                                                                                                 paths
- ---------------------------------------------------------------------------------------------------------------
                                                                    AIN trigger    Triggers      Subscribed
                                                                                   (e.g. Off-    Office-based
                                                                                   hook          Dialing plan
                                                                                   immediate,    Translation type
                                                                                   off-hook      Digital sequence
                                                                                   delay)
- ---------------------------------------------------------------------------------------------------------------
                                                                    Data Switch    Switch        Policing
                                                                    UNI Port       type (e.g.    Congestion
                                                                                   ATM)          control
- ---------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   152
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 7


               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

<TABLE>
- ---------------------------------------------------------------------------------------------------------------
<S>          <C>            <C>       <C>            <C>            <C>            <C>          <C>
Activity     Type      Inter-         Inter-         Element ID     Object         Option       Characteristics
(one of)               connection     connection                    (one of)       (one of)
                       Location       Specific
- ---------------------------------------------------------------------------------------------------------------
                                                                                   Frame
                                                                                   Relay)
- ---------------------------------------------------------------------------------------------------------------
                                                                    Data Switch    Switch       Policing
                                                                    NNI Port       type (e.g.   Congestion
                                                                                   ATM,         control
                                                                                   Frame 
                                                                                   Relay)
- ---------------------------------------------------------------------------------------------------------------


5) OPERATOR SYSTEMS
- ---------------------------------------------------------------------------------------------------------------
Activity     Type      Inter-         Inter-         Element ID     Object         Option       Characteristics
(one of)               connection     connection                    (one of)       (one of)
                       Location       Specific
- ---------------------------------------------------------------------------------------------------------------
A,C,D,R       OS       Serving        FUNCTIONALLY                  Operator                    O+
                       area (NPA-     INCLUSIVE                     Services                    O-
                       NXX, LATA,                                                               Busy Line
                       State, Rate                                                              Verification
                       center)                                                                    (BLV)
                                                                                                Emergency Line 
                                                                                                Interrupt
                                                                                                  (ELI)
                                                                                                911 overflow
- ---------------------------------------------------------------------------------------------------------------
                                                                    Directory      Service      411
                                                                    Assistance     Area         555-1212
                                                                                   Customer
- ---------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   153
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 8

               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

6) COMMON TRANSPORT
<TABLE>
- --------------------------------------------------------------------------------------------------------
<CAPTION>
Activity     Type   Inter-      Inter-      Element ID      Object     Option     Characteristics
(one of)            connection  connection                  (one of)   (one of)
                    Location    Specific
- --------------------------------------------------------------------------------------------------------
<S>          <C>    <C>         <C>         <C>             <C>        <C>        <C>
A,C,D,R      CT     Serving     CONTIGUOUS
                    area (NPA-   
                    NXX, LATA,
                    State, Rate FUNCTIONALLY
                    center)     INCLUSIVE
</TABLE>

7) DEDICATED TRANSPORT
<TABLE>
<CAPTION>
Activity     Type   Inter-      Inter-      Element ID      Object     Option     Characteristics
(one of)            connection  connection                  (one of)   (one of)
                    Location    Specific
- --------------------------------------------------------------------------------------------------------
<S>          <C>    <C>         <C>         <C>             <C>        <C>        <C>
A,C,D,R      DT     Location    CONTIGUOUS  Facility        DS0        No DCS     Routing
                    CLLI                    name                                  Avoidance
                                            CLFI                       D4 Channel
                    CLLI/POT                                            Bank      A/D Conversion
                                                                       DCS 1/0    Multiplexing/
                                                                                  De-multiplexing
                                                                                  Format
                                                                                  conversion
                                                                                  Signal conversion
                                                                                  Performance
                                                                                  monitoring
                                                                                  SONET to
                                                                                  Asynch.
- --------------------------------------------------------------------------------------------------------

</TABLE>

<PAGE>   154
                                                                   Attachment 11
                                                                      Appendix A
                                                                          Page 9

               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

<TABLE>
- --------------------------------------------------------------------------------------------------------
<CAPTION>
Activity     Type   Inter-      Inter-      Element ID      Object     Option     Characteristics
(one of)            connection  connection                  (one of)   (one of)
                    Location    Specific
- --------------------------------------------------------------------------------------------------------
<S>          <C>    <C>         <C>         <C>             <C>        <C>        <C>
                                                                                   gateway
                                                                                  Broadcasting
                                                                                  Mapping
- --------------------------------------------------------------------------------------------------------
                                                            DS1        No DCS     Signal format
                                                                                   (e.g. B8ZS,
                                                                                   AMI)
                                                                                  Framing format
                                                                                   (e.g. ESF, D4,
                                                                                   unframed)

                                                                       DSX        Multiplexing/
                                                                       DCS 1/0     Demultiplexing
                                                                       DCS 3/1    Format
                                                                                   conversion
                                                                                  Signal
                                                                                   conversion
                                                                                  Performance
                                                                                   monitoring
                                                                                  SONET to
                                                                                   Asynch.
                                                                                   gateway
                                                                                  Broadcasting
                                                                                  Mapping
- --------------------------------------------------------------------------------------------------------
                                                            DS3        No DCS     Secure Interface
                                                                                  Framing format
                                                                                   (e.g. C-bit
- --------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   155
                                                                   Attachment 11
                                                                      Appendix A
                                                                         Page 10

               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES
<TABLE>
- --------------------------------------------------------------------------------------------------------

<CAPTION>
Activity     Type   Inter-      Inter-      Element ID      Object     Option     Characteristics
(one of)            connection  connection                  (one of)   (one of)
                    Location    Specific
- --------------------------------------------------------------------------------------------------------
<S>          <C>    <C>         <C>         <C>             <C>        <C>        <C>
                                                                                   parity,
                                                                                   M13,
                                                                                  unframed)
                                                                       DSX 
                                                                       DCS 3/1    Multiplexing/
                                                                       DCS 3/3     Demultiplexing
                                                                                  Format        
                                                                                   conversion 
                                                                                  Signal
                                                                                   conversion
                                                                                  Performance
                                                                                   monitoring
                                                                                  SONET to
                                                                                   Asynch.
                                                                                   gateway
                                                                                  Broadcasting
                                                                                  Mapping
- --------------------------------------------------------------------------------------------------------
                                                            VT1.5 
- --------------------------------------------------------------------------------------------------------
                                                            STSn       LGX    
- --------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   156
                                                                   Attachment 11
                                                                      Appendix A
                                                                         Page 11

               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES


 8) SIGNAL TRANSFER POINTS

<TABLE>
- --------------------------------------------------------------------------------------------------------------------------
<CAPTION>
Activity       Type      Inter-         Inter-         Element ID          Object         Option         Characteristics
(One of)                 connection     connection                         (one of)       (one of)
                          Location      Specific                    
- --------------------------------------------------------------------------------------------------------------------------
<S>            <C>       <C>            <C>            <C>                 <C>            <C>            <C>
A,C,D,R        SS        Serving        CONTIGUOUS     STP CLLI            A-link         DS0  
                         area (NPA-                    (pair)              interface      DS1
                         NXX, LATA,                                        (pair)
                         State, Rate    FUNCTIONALLY        
                         center)        INCLUSIVE

                         CLLI/POT       ROUTING
- --------------------------------------------------------------------------------------------------------------------------      
                                                                           D-link         DS0
                                                                           interface      DS1
                                                                            (quad)
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>



 9) SIGNALING LINK TRANSPORT

<TABLE>
- --------------------------------------------------------------------------------------------------------------------------
<CAPTION>

Activity       Type      Inter-         Inter-         Element ID          Object         Option         Characteristics
(One of)                 connection     connection                         (one of)       (one of)
                          Location      Specific                    
- --------------------------------------------------------------------------------------------------------------------------
<S>            <C>       <C>            <C>            <C>                 <C>           <C>             <C>
A,C,D,R        SL        Location      CONTIGUOUS      Facility           Pair           DS0  
                         CLLI                          name                              DS1
                                                       Circuit ID         
                         CLLI/POT
- --------------------------------------------------------------------------------------------------------------------------      
                                                                          Quad            DS0
                                                                                          DS1
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   157
                                                                   Attachment 11
                                                                      Appendix A
                                                                         Page 12


               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

10) SCPs/DATABASES

<TABLE>
<CAPTION>
Activity             Interconnection    Interconnection                 Object        Option
(one of)      Type   Location           Specific           Element ID   (one of)      (one of)         Characteristics
- ----------------------------------------------------------------------------------------------------------------------
<S>           <C>    <C>                <C>                <C>          <C>           <C>              <C>
A, C, D, R,   DB     Serving area       FUNCTIONALLY                    LNP           Serving          NPA-NXX
                     (NPA-NXX, LATA,    INCLUSIVE                                     Area             LATA
                     State, Rate                                                                       Region
                     Center, region),   
                     Customer
- ----------------------------------------------------------------------------------------------------------------------
                                                           WTN          LIDB          Serving          NPA-NXX
                                                                                      Area             VNS
                                                                                      Customer         Calling Card
- ----------------------------------------------------------------------------------------------------------------------
                                                                        Toll Free     Serving          NPA-NXX
                                                                        (800)         Area
- ----------------------------------------------------------------------------------------------------------------------
                                                           WTN          E911          Serving          NPA-NXX
                                                                        (ALI/DMS)     Area             Rate Center
                                                                                      Customer         Region
                                                                                                       Customer
                                                                                                         Address, etc.
- ----------------------------------------------------------------------------------------------------------------------
                                                           WTN          AIN           Customer         WTN
                                                                                                       Dialing
                                                                                                       sequence
- ----------------------------------------------------------------------------------------------------------------------
                                                                        SCE/SMS/SCP   AIN              Subscribed
                                                                        Access        Triggers         Office-based
                                                                                      (e.g. Off-hook)
</TABLE>

<PAGE>   158
                                                                   Attachment 11
                                                                      Appendix A
                                                                         Page 13


               UNBUNDLED NETWORK ELEMENT PROVISIONING CATEGORIES

1) TANDEM SWITCHING

<TABLE>
<CAPTION>
Activity             Interconnection    Interconnection                 Object        Option
(one of)      Type   Location           Specific           Element ID   (one of)      (one of)         Characteristics
- ----------------------------------------------------------------------------------------------------------------------
<S>           <C>    <C>                <C>                <C>          <C>           <C>              <C>
A, C, D, R,   TS     Serving area       FUNCTIONALLY       Switch       Network       SS7              One-way
                     (NPA-NXX, LATA,    INCLUSIVE          CLLI         Trunk         MF               Two-way
                     State, Rate        ROUTING                                                        Routing
                     center)                                                                           Screening
                                                                                                       TSG

                     Location
                     CLLI
- ----------------------------------------------------------------------------------------------------------------------
                                                                        Routing       Operator
                                                                                        Services
                                                                                      Directory

                                                                                      Assistance
                                                                                      Messaging
- ----------------------------------------------------------------------------------------------------------------------
                                                                        LNP           RIPH             Overflow
                                                                                                       Primary
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   159
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 1

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT

Example 1

PURPOSE OF ORDER: Modify Dedicated transport order, Customer PBX to CLEC 4ESS

<TABLE>
<S>            <C>        <C>                 <C>             <C>            <C>             <C>  
      ORDER     A         ORDER ACTIVITY      MODIFY __X__    CANCEL ____    EXPEDITE___     SUSPEND___
  ACTIVITY:                 DESCRIPTION:      RESTORE_____ 

                                              SEQUENCE ____   COORDINATED ____   ASSOCIATED ORDER(S):

- ------------------------------------------------------------------------------------------------
                                    TYPE      E - DT
                           ELEMENT/COMB:

                    ---------------------------------------------------------------------------- 
                        INTERCONNECTION       FROM: [CUSTOMER prem CLLI] TO: [CLEC CFA T3 slot]
                              LOCATION:

                    ---------------------------------------------------------------------------- 
                        INTERCONNECTION       CONTIGUOUS
                              SPECIFIC:        
- ------------------------------------------------------------------------------------------------
DESIRED DUE   11/03/96 DUE DATE DETAILS:     
      DATE:      
- ------------------------------------------------------------------------------------------------
                                REMARKS:      Order modified to reflect different CFA assignment
- ------------------------------------------------------------------------------------------------
</TABLE>

ELEMENT/COMBINATION: DT -  Dedicated
Transport
- --------------------------------------
ELEMENT ID:  [LEO will return facility
             name, CFL]
    OBJECT:  DS1
- --------------------------------------
<PAGE>   160
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 2

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT

   QTY/CAPACITY:  1
- --------------------------------------
         OPTION:  Framing D4
- --------------------------------------
CHARACTERIStICS:  Signal: B8ZS

- --------------------------------------
       FEATURES:
- --------------------------------------

Example 2

PURPOSE OF ORDER: Route PBX customer's traffic from end-office to PBX trunk 
group to end-office to 4ESS trunk group in support of LNP 

<TABLE>
<S>            <C>        <C>                 <C>             <C>            <C>             <C>  
      ORDER     C         ORDER ACTIVITY      MODIFY _____    CANCEL ____    EXPEDITE___     SUSPEND___
  ACTIVITY:                 DESCRIPTION:      RESTORE_____ 

                                              SEQUENCE ____   COORDINATED _X___   ASSOCIATED ORDER(S):

- ------------------------------------------------------------------------------------------------
                                    TYPE      E - LS
                           ELEMENT/COMB:

                    ---------------------------------------------------------------------------- 
                        INTERCONNECTION       FROM: [LEC Switch CLLI] TO: [LEC-Switch-to-CLEC-4ESS TSG
                              LOCATION:       designation]

                    ---------------------------------------------------------------------------- 
                        INTERCONNECTION       ROUTING
                              SPECIFIC:        
- ------------------------------------------------------------------------------------------------
DESIRED DUE   11/03/99  DUE DATE DETAILS:     Activate routing in coordination with CLEC contact
      DATE:      
- ------------------------------------------------------------------------------------------------
                                REMARKS:      
- ------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   161
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 3

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
- --------------------------------------------------------------------------------

ELEMENT/COMBINATION: LS-Local
Switching
- ------------------------------------
     ELEMENT ID:   [LEC Switch CLLI]

- ------------------------------------
         OBJECT:   LNP

- ------------------------------------
   QTY/CAPACITY:   N/A

- ------------------------------------
         OPTION:   RIPH (Route Index
                   Portability Hub)
- ------------------------------------
CHARACTERISTICS:   [Ported Numbers]
                   Number of call 
                   paths: max
- ------------------------------------
       FEATURES:

- ------------------------------------


Example 3
PURPOSE OF ORDER: Suspend Local Switching functionality
- --------------------------------------------------------------------------------
    ORDER  C  ORDER ACTIVITY   MODIFY___  CANCEL___  EXPEDITE___  SUSPEND___X___
ACTIVITY:       DESCRIPTION:   RESTORE___

                               SEQUENCE___  COORDINATED___  ASSOCIATED ORDER(S):
- --------------------------------------------------------------------------------
                        TYPE   E-LS
               ELEMENT/COMB:
             -------------------------------------------------------------------
             INTERCONNECTION   INCLUSIVE: [LEC Switch CLLI]
                   LOCATION:
             -------------------------------------------------------------------
<PAGE>   162
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 4

                             UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                      ----------------------------------------------------------
                      
                      ----------------------------------------------------------
                      INTERCONNECTION     FUNCTIONALLY INCLUSIVE
                            SPECIFIC:
- --------------------------------------------------------------------------------
DESIRED DUE   NOW   DUE DATE DETAILS:
      DATE:
- --------------------------------------------------------------------------------
                             REMARKS:     Suspend all functionality except
                                          access to E911
- --------------------------------------------------------------------------------

ELEMENT/COMBINATION: LS-Local
Switching
- ------------------------------------
     ELEMENT ID:   WTN

- ------------------------------------
         OBJECT:   Line

- ------------------------------------
   QTY/CAPACITY:   1

- ------------------------------------
         OPTION:   POTS
                                   
- ------------------------------------
CHARACTERISTICS:                   
                                  
- ------------------------------------
       FEATURES:

- ------------------------------------


<PAGE>   163
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 5
                                        
                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                 ---------------------------------------------

Example 4

PURPOSE OF ORDER: Add LEC signaling access/capability to CLEC Switch

- --------------------------------------------------------------------------------
    ORDER  A  ORDER ACTIVITY   MODIFY___  CANCEL___  EXPEDITE___  SUSPEND _____
ACTIVITY:       DESCRIPTION:   RESTORE___

                               SEQUENCE___  COORDINATED X   ASSOCIATED ORDER(S):
- --------------------------------------------------------------------------------
                        TYPE   E-SS
               ELEMENT/COMB:
             -------------------------------------------------------------------
             INTERCONNECTION   INCLUSIVE: [Rate Center]  FROM: [STP CLLI Pair]
                   LOCATION:                               TO: [CLEC POP CLLI
                                                               and DSX tie down]
                                                           TO: [CLEC POP CLLI
                                                               and DSX tie down]
             -------------------------------------------------------------------
                         INTERCONNECTION     CONTIGUOUS, FUNCTIONALLY INCLUSIVE,
                               SPECIFIC:     ROUTING
- --------------------------------------------------------------------------------
DESIRED DUE   11/3/96  DUE DATE DETAILS:     Turn up signaling network in 
      DATE:                                  coordination with CLEC contact
- --------------------------------------------------------------------------------
                                REMARKS:     
- --------------------------------------------------------------------------------

ELEMENT/COMBINATION: SS-Signal
Transfer Points
- ------------------------------------
     ELEMENT ID:   [STP CLLI pair]

- ------------------------------------
<PAGE>   164
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 6

                             UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                      ----------------------------------------------------------
- -------------------------------------------
                   [Circuit ID's for links]
                      
- -------------------------------------------
         OBJECT:   A-link

- -------------------------------------------
   QTY/CAPACITY:   2 (pair)

- -------------------------------------------
         OPTION:   DS0
                                   
- -------------------------------------------
CHARACTERISTICS:                   
                                  
- -------------------------------------------
       FEATURES:

- -------------------------------------------


<PAGE>   165

                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 7

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT

Example 5

PURPOSE OF ORDER: Update ALI/DMS (E911) database with new customer information

- --------------------------------------------------------------------------------

ORDER          C        ORDER ACTIVITY    MODIFY      CANCEL      EXPEDITE
ACTIVITY:                DESCRIPTION:           -----       -----         ------
                                          SUSPEND      RESTORE
                                                 -----        -----

                                          SEQUENCE      COORDINATED  X
                                                  -----            -----
                                          ASSOCIATED ORDER(S):

- --------------------------------------------------------------------------------
                                  TYPE    E-DB       
                         ELEMENT/COMB:      
                ----------------------------------------------------------------
                       INTERCONNECTION    Inclusive: (Rate Center served by  
                             LOCATION:               ALI/DMS database)
                ----------------------------------------------------------------
                       INTERCONNECTION    FUNCTIONALLY INCLUSIVE
                             SPECIFIC:
- --------------------------------------------------------------------------------
DESIRED DUE  11/03/96 DUE DATE DETAILS    Activate new database entry in
      DATE:                               coordination with CLEC contact
- --------------------------------------------------------------------------------
                              REMARKS:
- --------------------------------------------------------------------------------

ELEMENT/COMBINATION: DB -
 SCPs/Database
- -----------------------------
ELEMENT ID:   WTN
- -----------------------------
    OBJECT:   E911 (ALI/DMS)
- -----------------------------
      
<PAGE>   166
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 8

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                 ---------------------------------------------
<TABLE>
<S>               <C>
- -----------------------------------------
   QTY/CAPACITY:  1
- -----------------------------------------
         OPTION:  Customer
- -----------------------------------------
CHARACTERISTICS:  [New customer-specific
                  information]
- -----------------------------------------
       FEATURES:
- -----------------------------------------
</TABLE>
<PAGE>   167
                                                                   Attachment 11
                                                                      Appendix B
                                                                          Page 9

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                 ---------------------------------------------

EXAMPLE 6

PURPOSE OF ORDER: Disconnect Local Switching


<TABLE>
<S>               <C>         <C>               <C>   
- -----------------------------------------------------------------------------------------------------------
      ORDER       D           ORDER ACTIVITY    MODIFY          CANCEL        EXPEDITE       SUSPEND
  ACTIVITY:                      DESCRIPTION          -----           -----           -----          -----
                                                RESTORE     
                                                       -----
                                                SEQUENCE          COORDINATED   X     ASSOCIATED ORDER(S):
                                                        -----                -------
- -----------------------------------------------------------------------------------------------------------
                                        TYPE    E-DB
                               ELEMENT/COMB:
                              -----------------------------------------------------------------------------
                             INTERCONNECTION    INCLUSIVE [LEC Switch CLLI]
                                   LOCATION:
                              -----------------------------------------------------------------------------
                             INTERCONNECTION    FUNCTIONALLY INCLUSIVE
                                    SPECIFIC
- ----------------------------------------------------------------------------------------------------------
DESIRED DUE     11/03/96   DUE DATE DETAILS:    Disconnect in coordination with CLEC contact
      DATE:
- -----------------------------------------------------------------------------------------------------------
                                    REMARKS:
- -----------------------------------------------------------------------------------------------------------
ELEMENT/COMBINATION: LS-Local
SWITCHING
- -------------------------------
ELEMENT ID:       WTN
- -------------------------------
</TABLE>
<PAGE>   168
                                                                   Attachment 11
                                                                      Appendix B
                                                                         Page 10

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
                 ---------------------------------------------
<TABLE>
<S>                <C>
- -----------------------------------------
         OBJECT:   Line
- -----------------------------------------
   QTY/CAPACITY:   1
- -----------------------------------------
         OPTION:   POTS
- -----------------------------------------
CHARACTERISTICS:
- -----------------------------------------
       FEATURES:
- -----------------------------------------
</TABLE>
<PAGE>   169
                                                                   Attachment 11
                                                                      Appendix B
                                                                         Page 11

                 UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT

I.

Example 2

PURPOSE OF ORDER: LOOP and Switching Combination

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
<S>            <C>  <C>                 <C>



     ORDER     A     ORDER ACTIVITY     MODIFY ____ CANCEL ____ EXPEDITE ____ SUSPEND ____
 ACTIVITY:             DESCRIPTION:     RESTORE ____

                                        SEQUENCE ____ COORDINATED __X__  ASSOCIATED ORDER(S):
- -------------------------------------------------------------------------------------------------------

                               TYPE     C - LOOP/LS
                      ELEMENT/COMB:

                    -----------------------------------------------------------------------------------

                    INTERCONNECTION     FROM: [Customer prem]  TO: [LSO CLLI, CLEC IDF frame tie down]
                          LOCATION:

                    -----------------------------------------------------------------------------------

                    INTERCONNECTION     CONTIGUOUS, ROUTING
                          SPECIFIC:

- -------------------------------------------------------------------------------------------------------
DESIRED DUE  11/03/9       DUE DATE     Swing loop and activate remote call forward simultaneously
DATE: 6                    DETAILS:

- -------------------------------------------------------------------------------------------------------
                           REMARKS:

- -------------------------------------------------------------------------------------------------------

ELEMENT/COMBINATION: LOOP - Loop        ELEMENT/COMBINATION: LS - Local
                                        Switching

- ----------------------------------------------------------------------------
</TABLE>
<PAGE>   170
<TABLE>
<CAPTION>
                                                                                                              Attachment 11
                                                                                                                 Appendix B
                                                                                                                    Page 12



                                                               UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
- -----------------------------------------------------------------------------------------------------
<S>                  <C>                                <C>           <C>
     ELEMENT ID:     [LEC will return loop ID]          ELEMENT ID:   [LEC Switch CLLI]

- -----------------------------------------------------------------------------------------------------
         OBJECT:     Analog                                 OBJECT:   LNP

- -----------------------------------------------------------------------------------------------------

   QTY/CAPACITY:     1                                QTY/CAPACITY:   N/A

- -----------------------------------------------------------------------------------------------------

         OPTION:     2-wire                                 OPTION:   RCF

- -----------------------------------------------------------------------------------------------------
CHARACTERISTICS:    Interface: Analog              CHARACTERISTICS:  [Shadow number]
                                                                     number of call paths:  2

- -----------------------------------------------------------------------------------------------------
       FEATURES:                                          FEATURES:

- -----------------------------------------------------------------------------------------------------
</TABLE>





<PAGE>   171
<TABLE>
<S><C>
                                                                                                                       Attachment 11
                                                                                                                          Appendix B
                                                                                                                             Page 13
                                           UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
Example 3

PURPOSE OF ORDER: Local Switching Condition Combination

- ------------------------------------------------------------------------------------------------------------------------------------
       ORDER     A                          ORDER ACTIVITY   MODIFY _______  CANCEL _______  EXPEDITE _______  SUSPEND _______
   ACTIVITY:                                  DESCRIPTION:   RESTORE _______

                                                             SEQUENCE  ________   COORDINATED ________  ASSOCIATED ORDER(S):
- ------------------------------------------------------------------------------------------------------------------------------------
                                                      TYPE   C - LS/CT/SS/DB/TS
                                             ELEMENT/COMB:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   INCLUSIVE: [NPA]
                                                 LOCATION:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   FUNCTIONALLY INCLUSIVE
                                                 SPECIFIC:
- ------------------------------------------------------------------------------------------------------------------------------------
DESIRED DUE   11/03/96                   DUE DATE DETAILS:
       DATE:     
- ------------------------------------------------------------------------------------------------------------------------------------
                                                  REMARKS:   Prepare NPA for CLEC use of all Local Switching, Common Transport,
                                                             Signaling, Database and Tandem Switching elements.

                                                             Return CLEC Line Class Codes for all switches
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   172
<TABLE>
<S><C>
                                                                                                                       Attachment 11
                                                                                                                          Appendix B
                                                                                                                             Page 14
                                           UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
Example 4

PURPOSE OF ORDER: Toll Traffic Combination 1 - Add toll trunking and transport between LEC end office and CLEC Switch

- ------------------------------------------------------------------------------------------------------------------------------------
       ORDER     A                          ORDER ACTIVITY   MODIFY _______  CANCEL _______  EXPEDITE _______  SUSPEND _______
   ACTIVITY:                                  DESCRIPTION:   RESTORE _______

                                                             SEQUENCE  ________   COORDINATED ___X____  ASSOCIATED ORDER(S):
- ------------------------------------------------------------------------------------------------------------------------------------
                                                      TYPE   C - DT/LS
                                             ELEMENT/COMB:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   FROM: [LEC Switch CLLI]  TO: [CFA T3 slot]
                                                 LOCATION:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   CONTIGUOUS, FUNCTIONALLY INCLUSIVE, ROUTING
                                                 SPECIFIC:
- ------------------------------------------------------------------------------------------------------------------------------------
DESIRED DUE   11/03/96                   DUE DATE DETAILS:   Do not activate routing until notified by CLEC contact
       DATE:     
- ------------------------------------------------------------------------------------------------------------------------------------
                                                  REMARKS:   
- ------------------------------------------------------------------------------------------------------------------------------------

ELEMENT/COMBINATION: DT - Dedicated                ELEMENT/COMBINATION: LS - Local
Transport                                          Switching

- --------------------------------------------------------------------------------------
ELEMENT ID:   [LEC will return facility            ELEMENT ID:   [LEC will return TSG
              name, CLFI]                                        designation]
- --------------------------------------------------------------------------------------
</TABLE>
<PAGE>   173
<TABLE>
<CAPTION>
                                                                                                              Attachment 11
                                                                                                                 Appendix B
                                                                                                                    Page 15



                                                               UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
- -----------------------------------------------------------------------------------------------------
<S>                 <C>                           <C>                <C>
         OBJECT:    DS1                                    OBJECT:   Network Trunk

- -----------------------------------------------------------------------------------------------------

   QTY/CAPACITY:    1                                QTY/CAPACITY:   24

- -----------------------------------------------------------------------------------------------------

         OPTION:    Framing: ESF                           OPTION:   SS7           

- -----------------------------------------------------------------------------------------------------

CHARACTERISTICS:    Signal: B8ZS                  CHARACTERISTICS:   Two-way 
                                                                     [Screening]
                                                                     [TSG characteristics]   
                                                                     [Routing]

- -----------------------------------------------------------------------------------------------------
       FEATURES:                                          FEATURES:

- -----------------------------------------------------------------------------------------------------
</TABLE>





<PAGE>   174
<TABLE>
                                                                                                                       Attachment 11
                                                                                                                          Appendix B
                                                                                                                             Page 16
                                           UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
Example 5

PURPOSE OF ORDER: Cancel order to Add trunking and transport between LEC end-office and CLEC OSPS Switch
<S>                                      <C>                 <C>
- ------------------------------------------------------------------------------------------------------------------------------------
       ORDER     A                          ORDER ACTIVITY   MODIFY _______  CANCEL ___X___  EXPEDITE _______  SUSPEND _______
   ACTIVITY:                                  DESCRIPTION:   RESTORE _______

                                                             SEQUENCE  ________   COORDINATED ________  ASSOCIATED ORDER(S):
- ------------------------------------------------------------------------------------------------------------------------------------
                                                      TYPE   C - DT/LS
                                             ELEMENT/COMB:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   FROM: [LEC Switch CLLI]  TO: [CLEC POP CLLI and DSX tie down]
                                                 LOCATION:
- ------------------------------------------------------------------------------------------------------------------------------------
                                           INTERCONNECTION   CONTIGUOUS, FUNCTIONALLY INCLUSIVE
                                                 SPECIFIC:
- ------------------------------------------------------------------------------------------------------------------------------------
DESIRED DUE   11/03/96                   DUE DATE DETAILS:   
       DATE:     
- ------------------------------------------------------------------------------------------------------------------------------------
                                                  REMARKS:   
- ------------------------------------------------------------------------------------------------------------------------------------

ELEMENT/COMBINATION: DT - Dedicated                ELEMENT/COMBINATION: LS - Local
Transport                                          Switching

- --------------------------------------------------------------------------------------
</TABLE>
<PAGE>   175
<TABLE>
<CAPTION>
                                                                                                              Attachment 11
                                                                                                                 Appendix B
                                                                                                                    Page 17



                                                               UNBUNDLED NETWORK ELEMENT PROVISIONING FORMAT
- -----------------------------------------------------------------------------------------------------
<S>                  <C>                           <C>                <C>
     ELEMENT ID:     [LEC will return facility          ELEMENT ID:   [LEC will return TSG
                     name, CLFI]                                       designation]
- -----------------------------------------------------------------------------------------------------
         OBJECT:     DS1                                    OBJECT:   Network Trunk

- -----------------------------------------------------------------------------------------------------

   QTY/CAPACITY:     2                                QTY/CAPACITY:   48 

- -----------------------------------------------------------------------------------------------------

         OPTION:     Framing: D4                            OPTION:   SS7

- -----------------------------------------------------------------------------------------------------
CHARACTERISTICS:    Signal: B8ZS                   CHARACTERISTICS:   One-way (out from LEC switch)
                                                                      [Screening]
                                                                      [TSG characteristics]

- -----------------------------------------------------------------------------------------------------
       FEATURES:                                          FEATURES:

- -----------------------------------------------------------------------------------------------------
</TABLE>





<PAGE>   176
                                                                   Attachment 11
                                                                      Appendix C
                                                                          Page 1


               PRINCIPALS FOR IMPLEMENTING ELECTRONIC INTERFACES
                         FOR OPERATIONAL SUPPORT SYSTEMS

1.       PREORDERING

1.1      Transaction-Based Information Exchange

The Parties agree that preordering information exchange will be transmitted over
the same interface according to the same content definition both for resold
PACIFIC services provided using UNE.

1.2      Initial Systems

CLEC will utilize various manual methods of preordering information exchange.

1.3      Long Term Systems

As soon as possible after the effective date and no later than the "Detailed
Specifications Agreed To Date" as set forth in Exhibit 1, CLEC and PACIFIC will
use their best efforts to agree to detailed specifications for upgrading the
transaction based preordering information exchange mechanism according to the
CLEC proposed data model for preordering which is based on Telecommunications
Industry Forum (TCIF) for Electronic Data Interchange (EDI), Version 6. Unless
PACIFIC and CLEC agree to an alternative exchange mechanism by February 10,
1997, the specifications will require that EC-Lite/EDI formatted content be
transmitted over a mutually agreeable X.25 or TCP/IP based network to perform
inquiries, including inquiries for Switch/Feature Availability, Address
Verification, Telephone Number Assignment, Appointment Scheduling, and Customer
Service Record requests. When the "Detailed Specifications Agreed To Date" is
met, and no additional specifications or changes are required by law, PACIFIC
will implement this upgrade by the applicable "Start Date" specified in Exhibit
1.

CLEC and PACIFIC will translate preordering data elements used in their internal
processes into the agreed upon forms, and EDI.

1.4      Batch Data Exchange

Unless another mutually agreed to alternative exists between PACIFIC and CLEC,
CLEC will use two types of orders, the Infrastructure Provisioning order and
Customer Specific Provisioning order, to establish local service capabilities
based on a UNE architecture. The Infrastructure Footprint Form and associated


<PAGE>   177
                                                                   Attachment 11
                                                                      Appendix C
                                                                          Page 2


ASR forms (Local Switching, Interoffice Transport, Signaling and Database,
Operator Services and DA, and Operations Systems). CLEC will provide these
Infrastructure Provisioning and ASR forms via the ASR process, including passing
the information over a file transfer network, (e.g. Network Data Mover Network)
using the CONNECT: Direct file transfer product.

Customer Specific provisioning will be based on OBF LSR forms and applicable
SOSC interpretations of transactions in accordance with OBF forms. PACIFIC and
CLEC agree to adapt interfaces based on evolving ATIS/OBF and SOSC standards.

2.       ORDERING AND PROVISIONING

2.1      CLEC Resells PACIFIC Telecommunications Service(s)

The exchange of information relating to the ordering and provisioning of local
service, when CLEC is the customer of record for the resold service(s), will be
based on the most current industry order formats and data elements developed in
the Ordering and Billing Forum (OBF).

2.1.1    Initial Systems

Except as provided in Exhibit 1. PACIFIC will provide CLEC, on or before the
Effective Date, with an electronic interface known as Resale Mechanized
Interface (RMI) for transmitting and receiving Service Requests and related
information such as Firm Order Confirmations (FOC, Jeopardies, Rejects, and
Completions). CLEC and PACIFIC will translate necessary data elements used in
their internal processes into mutually agreeable file formats and record
layouts. CLEC and PACIFIC will develop a mutually agreeable schedule for
transmissions throughout the day suing the CONNECT: Direct protocol.

For the ordering of products not supported by RMI, PACIFIC will provide CLEC
with other technologies mutually agreed to by the Parties.

2.1.2 Long Term Systems

As soon as possible after the Effective Date and no later than the "Details
Specifications Agreed to Date" as set forth in Exhibit 1, CLEC and PACIFIC will
use their best efforts to agree to detailed specifications for upgrading the
ordering information exchange mechanism according to the Telecommunications
Industry Forum (TCIF) for Electronic Data Interchange (EDI) CLEC and PACIFIC
mutually agree that the information exchange will be forms based, including the
use of the Local Services Request (LSR) Form, the End User Information Form and
the Resale Information Form developed by the OBF. CLEC and PACIFIC 


<PAGE>   178
                                                                   Attachment 11
                                                                      Appendix C
                                                                          Page 3


will use a mutually agreeable X.25 or TCP/IP based transport network for
exchange of transactions. CLEC and PACIFIC will translate ordering and
provisioning requests originating in their internal processes into agreed upon
forms and EDI transactions. Provided that the "Detailed Specifications Agreed To
Date" is met and no additional specifications or changes in specifications are
required by law, PACIFIC will use its best efforts to implement this upgrade by
the applicable "Start Date" specified in Exhibit 1.

2.2      CLEC Provides Service Using PACIFIC Unbundled Network Elements

2.2.1    Ordering Process and Forms

CLEC and PACIFIC will use two types of orders, an Infrastructure Provisioning
order and a Customer Specific Provisioning order to order and provision Network
Elements and Combinations.

The Infrastructure Provisioning Footprint order notifies PACIFIC of the common
use (across CLEC Retail Customers) Network Elements and Combinations that CLEC
will require, and identifies the geographic area CLEC expects to serve through
the Network Elements and Combinations ordered. PACIFIC and CLEC will mutually
agree on necessary modifications to the existing ordering process and forms used
for Exchange Access products until the OBF has adopted an acceptable alternative
method. In addition PACIFIC will accept a modified version of the Translation
Questionnaire (TQ) Form adopted by the OBF. The modified TQ will be sent to
PACIFIC, and PACIFIC will modify the routing tables for its end offices to
accommodate the treatment of customer calling associated with the combination of
Network Elements and Combinations that CLEC is employing to deliver service.
CLEC will provide the Infrastructure Footprint Order and all associated ASR
forms. PACIFIC will accept delivery of the Infrastructure Provisioning Forms
through the ASR process.

The customer specific provisioning order will be based upon OBF LSR Forms.
PACIFIC agrees that the information exchange will be forms based using the Local
Service Request Form, End User Information Form, Loop Element Form (formerly
Loop Service form), and Switch Element Form (formerly Port Form) developed by
the OBF. Such customer specific elements include, but are no limited to, the
customer loop, the network interface device, the customer dedicated portion of
the local switch, and any combination thereof.

2.2.2.   Initial Systems

PACIFIC will provide CLEC, on the schedule specified in Exhibit 1 attached
hereto, with an Electronic Interface known as the Network Data Mover (NDM) for
transmitting and receiving Service Requests and related information such as
<PAGE>   179
                                                                   Attachment 11
                                                                      Appendix C
                                                                          Page 4

Firm Order Completions (FOC), Jeopardies, Rejects, and Completions. CLEC and
PACIFIC will translate necessary data elements used in their internal processes
into mutually agreeable file formats and record layouts. CLEC and PACIFIC will
develop a mutually agreeable schedule for transmissions throughout the day using
the CONNECT: Direct protocol.

2.2.3   Long Term Systems

As soon as possible after the Effective Date and in no event after the "Detailed
Specifications Agreed To Date" as set forth in Exhibit 1 attached hereto. CLEC
and PACIFIC will use their best efforts to agree to detailed specifications for
upgrading the ordering information exchange mechanism according to the
Telecommunications Industry Forum (TCIF) for Electronic Data Interchange (EDI)
for the Customer Specific Provisioning orders. The information exchange will be
forms based. CLEC and PACIFIC will use a mutually agreeable X.25 or TCP/IP based
transport network for exchange of transactions. CLEC and PACIFIC will translate
ordering and provisioning requests originating in their internal processes into
the agreed upon forms and EDI transactions. Provided that the "Detailed
Specification Agreed To Date" is met and no additional specifications or changes
in specifications are required by law, PACIFIC will use its best efforts to
implement this upgrade by the applicable "Start Date" specified on Exhibit 1
attached hereto.

3.      TESTING AND ACCEPTANCE

CLEC and PACIFIC agree that no interface will be represented as either generally
available or as operational until end-to-end functionality testing, as agreed to
in a Joint Implementation Agreement or other mutually acceptable document are
completed to the satisfaction of both Parties. The intent of the end-to-end
functionality testing is to establish, through the submission and processing of
test scenarios, that transactions agreed to by CLEC and PACIFIC will
successfully process, in a timely and accurate manner, through both Parties'
support of OSS as well as the interfaces. CLEC will provide load forecasts by
transaction type. PACIFIC will provide documentation to assure ability to handle
forecasted load, such as system simulation models. The testing will include the
use of mutually agreeable test transactions, designed to represent no less than
95 percent of the transaction types that CLEC expects to send and receive
through the Interface undergoing end-to-end testing. In addition, CLEC and
PACIFIC will establish either a mutually agreeable testing environment or an
audit process sufficient to demonstrate that the interfaces established between
CLEC and PACIFIC have the capability and capacity to exchange busy period
transaction volumes reasonably projected to occur during the forward-looking
twelve month period following implementation of the interface. The test
environment or audit process, whichever is utilized, must validate that PACIFIC 
<PAGE>   180
                                                                   Attachment 11
                                                                      Appendix C
                                                                          Page 5

can accept and process the anticipated busy period loan without degradation of
overall end-to-end performance of the information exchange delivered to CLEC
even when other CLEC transactions are simultaneously processed by PACIFIC.
Before testing begins, the Parties will mutually agree upon testing entrance
and exit criteria.

4.   JOINT IMPLEMENTATION AGREEMENT DEVELOPMENT


CLEC and PACIFIC recognize that this Attachment is not sufficient to fully
resolve all technical and operational details related to the interfaces
described. Therefore, CLEC and PACIFIC agree to document the additional 
technical and operational details in the form of a Joint Implementation 
Agreement (JIA).  The JIAs for each interface will become a legally binding 
addendum to this Attachment. These JIAs may be modified over the course of this 
Agreement without subjecting the balance of the Agreement to renegotiation or 
modification. Both Parties further agree that any technical, operational or 
implementation issues, once identified at the working team level, may be 
escalated by the initiative of either Party thirty (30) days after an issue is 
identified if no plan for resolution has been agreed.  The escalation will 
process first to the senior management of each company who will seek to resolve 
the issue. If an issue is not resolved within thirty (30) days following 
receipt of the issue by senior management, either Party may submit the issue to 
the dispute resolution procedures of Attachment 3 for binding resolution. In 
addition, CLEC and PACIFIC will document both a topical outline for the JIAs as 
well as establish a schedule for identifying, discussing, resolving and 
documenting resolution of issues related to each aspect of the JIA topical 
outline for each interface discussed in this document. In no case, will either 
end-to-end integrity testing or loan testing begin without both Parties 
mutually agreeing that each interface JIA documents the intended operation of 
the interface scheduled for testing. Any issues identified and subsequently 
resolved through either the end-to-end integrity or load testing processes will 
be incorporated into the impacted interface JIA within thirty (30) days of 
issue resolution.


<PAGE>   181
                                                                   Attachment 11
                                                           Appendix C, Exhibit 1
                                                                          Page 1




                 OPERATION SUPPORT SYSTEMS IMPLEMENTATION DATES


<TABLE>
<CAPTION>
PROCESS                              INITIAL SYSTEMS          START DATE
- -------                              ---------------          ----------

ORDERING:

<S>                                  <C>                      <C>

Total Service Resale:
    Residence Basic                  RMI/NDM                  currently available
    "As is"                          RMI/NDM (flowthru)*      5/31/97
    "As Specified"                   RMI/NDM (flowthru)*      5/31/97
    Changes, Disconnects,            RMI/NDM (flowthru)*      8/15/97
    New, Move                        RMI/NDM (flowthru)*      8/15/97
  Business - S/M Line, PBX trunk     RMI/NDM*                 current available
    Centrex and ISDN                 RMI/NDM*                 7/10/97++
  Directory - stand alone order      RMI/NDM*                 current available
  Directory - with Resale order**    RMI/NDM                  3/31/97          
  E911 - stand alone order           NENA                     current available
  E911 - with Resale order           RMI/NDM                  3/31/97
  NOTE: Product implementation dates include Directory and E911
 *NOTE: NDM (CONNECT: Direct) based on locally agreed upon specifications
**NOTE: CLEC will make appropriate parsing changes
++based upon agreement to detailed specifications by 4/10/97

Network Elements

     -customer Specific:
      local loop                    NDM                       90 days after agreed to
      unbundled local switching,                              standard for each
      combined unbundled local                                unbundled network
      switching and local loop.                               element

    -"Footprint"                    ASR/NDM                   90 days after agreed
                                                              upon standard

</TABLE>


    
<PAGE>   182
                                                                   Attachment 11
                                                           Appendix C, Exhibit 1
                                                                          Page 2


                 OPERATION SUPPORT SYSTEMS IMPLEMENTATION DATES


<TABLE>
<CAPTION>
                                                        DETAILED
                                                        SPECIFICATION
                                        LONG TERM       AGREED
PROCESS                                 SYSTEM          TO DATE                 START DATE
- -------                                 ---------       -------------           ----------
<S>                                     <C>             <C>                     <C>
ORDERING:

Total Service Resale:
  Residence Basic: "As Is:              EDI             2/10/97                 6/10/97
  "As Specified", Changes               EDI             2/10/97                 6/10/97
  Disconnects, New, Move                EDI             2/10/97                 6/10/97
  Business: S/M Line, PBX trunk         EDI             2/10/97                 6/10/97
  Business: Centrex and ISDN            EDI             6/10/97                 12/10/97
  Directory - stand alone order         EDI             2/10/97                 6/10/97
  E911 - stand alone order              NENA            currently available     currently available

NOTE: Product implementation dates include Directory and E911

NETWORK ELEMENTS

  -Customer Specific: local loop        EDI             2/10/97                 10/10/97
   unbundled local switching,
   combined unbundled local
   switching and local loop

  -"Footprint"                          ASR/NDM         2/10/97                 6/10/97
</TABLE>
<PAGE>   183
                                                                   Attachment 11
                                                           Appendix C, Exhibit 1
                                                                          Page 3


                 OPERATION SUPPORT SYSTEMS IMPLEMENTATION DATES


<TABLE>
<CAPTION>
                                                        DETAILED
                                                        SPECIFICATION
                                        LONG TERM       AGREED
PROCESS                                 SYSTEM          TO DATE                 START DATE
- -------                                 ---------       -------------           ----------
<S>                                     <C>             <C>                     <C>
PRE-ORDERING (ALL RESALE AND NETWORK ELEMENTS)

  Feature Availability                  EDI             2/10/97                 8/10/97
  RACF Nbr.                             EDI             2/10/97                 8/10/97
  CICs                                  EDI             2/10/97                 8/10/97
  Address Verify                        EDI             2/10/97                 8/10/97

Telephone Number Assign
  1-5 Basic Exchange                    EDI             4/10/97                 10/10/97
  Single Line ISDN                      EDI             4/10/97                 10/10/97
  1-5 COPT Lines                        EDI             4/10/97                 10/10/97
  All Other Products                    EDI             10/10/97                4/10/98

CSRs                                    EDI             4/10/97                 2/10/98
Appointments Scheduling                 EDI             6/10/97                 12/10/97
(New connects, basic exchange,
connects basic local loop)
Centrex Facility Availability           EDI             6/10/97                 12/10/97
Connected Facility Availability         EDI             2/10/97                 8/10/97
 (for basic resale or basic loop)
DID Service Inquiry                     EDI             2/10/97                 8/10/97
</TABLE>
<PAGE>   184
                                                      Attachment 11 - Appendix D
                                                                    Page 1 of 12
                                        
                                        
                      JOINT IMPLEMENTATION AGREEMENT (JIA)
                                        
                       EDI ORDERING - NUMBER PORTABILITY
                                        
                                        
                               TABLE OF CONTENTS
                                        
<TABLE>
<S> <C>  <C>                                                                <C>


1.  INTRODUCTION

     1.1  Executive Summary ................................................ 3
     1.2  Introduction ..................................................... 3

2. PURPOSE
     2.1  Purpose .......................................................... 3
     2.2  Scope ............................................................ 4
     2.3  Term of the JIA .................................................. 4

3. TERMS AND CONDITIONS

     3.1  General Terms .................................................... 4
     3.2  CLEC Notifications ............................................... 5
     3.3  Intercompany Contacts  ........................................... 5
     3.4  Interface Control Document ....................................... 5
     3.5  Interface Testing  ............................................... 6
     3.6  Change Control Type Process ...................................... 6
     3.7  Change Types ..................................................... 6
     3.8  Implementation Scheduling  ....................................... 7

4. OSS DISPUTE RESOLUTION .................................................. 9

5. SCHEDULE ................................................................ 10

6. AUTHORIZED SIGNATURES ................................................... 11


</TABLE>
<PAGE>   185
<TABLE>
<C>                      <C>                                        <C>

1.  INTRODUCTION

1.1 EXECUTIVE SUMMARY

        SECTION          TOPIC                                      CONTENTS

        1                Introduction                                Identifies the document content.

        2                Purpose                                     Documents the purpose and objectives of the JIA as addendum to 
                                                                     the Interconnection Agreement. Identifies scope of this JIA 
                                                                     relative to ordering and/or pre-ordering application-to-applic-
                                                                     ation interfaces identified in Section 2.2. Identifies the 
                                                                     technical and operational Interface Control Documents that
                                                                     the parties use to implement and maintain these interfaces.

        3                Terms                                       Outlines the terms and conditions of the JIA.

        4                OSS Dispute Resolution                      Defines how disputes will be resolved.

        5                Implementation Schedule                     Outlines a schedule for developing interface functionality.

        6                Authorized Signatures                       Signatures of parties who agree to terms and conditions of 
                                                                     this document. 


</TABLE>


1.2 INTRODUCTION

    1.2.1  This document establishes fundamental principles and actions for OSS 
    interface implementation and maintenance between Pacific Bell (hereafter 
    known as "Pacific") and CRL Network Services ("CLEC").

    1.2.2  Pacific and CLEC agree to jointly test and implement the interfaces
    that are outlined in Section 2.2. Scope, pursuant to the terms and
    conditions of the Interconnection Agreement between CLEC and Pacific dated
    December 19, 1996. Pacific will present project plans to CLEC specifying the
    technical, operational and other details regarding each such OSS interface
    and the timelines for testing and implementation thereof. CLEC shall have
    the opportunity to comment and make recommendations related to each such OSS
    interface and Pacific shall fully consider such comments and recommendations
    and respond to CLEC in a timely manner. If the parties cannot reach
    agreement regarding such OSS interface, the OSS Dispute Resolution process
    set forth in Section 4 hereof shall apply. In the event of any disagreement
    between the provisions of the Interconnection Agreement regarding OSS and
    this JIA, the terms of this Interconnection Agreement shall control.




  
<PAGE>   186
2.   PURPOSE

2.1  PURPOSE AND OBJECTIVE

     2.1.1  The purpose of this JIA is to document the principles guiding the 
     technical and operational work efforts between Pacific and CLEC relative 
     to the implementation of OSS interfaces referenced in the Interconnection 
     Agreement and identified in Section 2.2, Scope.

     2.1.2  An objective of this JIA is to document the guidelines for 
     implementation and usage of the electronic interfaces under the terms of 
     the Interconnection Agreement. To achieve this objective, the parties will 
     use the documentation and processes referenced in this JIA and focus work 
     efforts on issues that increase the effectiveness of mechanized interfaces.

     2.1.3  This JIA is entered in accordance with Attachment 11 of the 
     Pacific/CRL Network Services Interconnection Agreement.

     2.1.4  To achieve the purpose and objective, the JIA establishes a basis 
     for work efforts and outlines the responsibilities of the parties. An 
     important part of this is the Change Control Process. This process is 
     established for the parties to manage modifications to the interfaces 
     subject to applicable guidelines developed within the Ordering and Billing 
     Forum (OBF) and the Telecommunications Industry Forum (TCIF). This Change 
     Control Process also provides for an escalation process. Supporting 
     documentation for each interface is maintained separately, outside of this 
     JIA. Issues and corresponding resolutions will be documented in 
     correspondence.

2.2  SCOPE

     This JIA pertains to the EDI ordering electronic application interface, 
     specific to Number Portability orders and the latest versions of the 
     associated interface control documents. A separate JIA will be executed 
     for the Directory Listings and 911 updates associated with these Orders; 
     CLEC will use the LI Office Gateways until EDI functionality is available, 
     tested and implemented.
<PAGE>   187
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
INTERFACE         INTERFACE CONTROL         DESCRIPTION
                  DOCUMENT
- --------------------------------------------------------------------------------
<S>               <C>                       <C>
EDI - Ordering    1. LSOR 2.0               1. Local Service Order Request
                     version 1.3               contains business rules for
                     (5/11/98)                 ordering specific products based
                                               on standards established by the
                                               OBF.

                  2. EDI Technical          2. Contains administrative
                     Specification             requirements and data specific
                     TCIF 3040                 information showing which
                     (1/21/98)                 segments and elements will be
                                               used. Included are mapping
                                               matrices that identify fields
                                               specific to Pacific. These fields
                                               indicate how information will be
                                               mapped in EDI. This
                                               documentation is based on
                                               standards developed by the OBF
                                               and TCIF.
- --------------------------------------------------------------------------------
</TABLE>

2.3 TERM OF THE JIA

     2.3.1 The JIA shall terminate and be of no further force or effect upon the
     termination of Interconnection Agreement. Transition of the process
     contained in this JIA to terms of a new interconnection agreement shall be
     pursuant to Section 3 of the Main Agreement.

3.0 TERMS AND CONDITIONS

3.1 GENERAL TERMS

     3.1.1 This JIA is adopted pursuant to the Interconnection Agreement and
     serves as an addendum to the Interconnection Agreement. The following terms
     serve as the basis for this document.

       a) This document applies to the ordering and/or pre-ordering electronic
       application to application interfaces identified in Section 2.2 above.

           a)  The document is based upon the Interconnection Agreement's terms
               for ordering functions that support Number Portability.

           b)  Pacific and CLEC will work together in good faith to implement
               interface functionality in the most effective manner possible.
               Changes to be managed by the Change Control Process are those
               with direct impact to the interface functionality. These changes
               are:

               1) releases finalized by OBF and TCIF, to the extent required by
                  the Interconnection Agreement.
               2) Pacific Bell initiated system changes that directly affect
                  CLEC system requirements. 
<PAGE>   188
3.2  CLEC NOTIFICATIONS

     3.2.1 CLEC will receive written notification of a change as soon as 
     reasonably possible after Pacific decides to make the change. Pacific will 
     develop a timeline for development and distribution of documentation and 
     resulting implementation efforts. Should the timeline and/or the content 
     not be acceptable to CLEC, CLEC may escalate the issue for resolution. Any 
     disputes will be resolved pursuant to Section 4 hereof.

     3.2.2 CLEC requests for changes within the scope of implementation will be 
     communicated in writing from CLEC to its appropriate single point of 
     contact. The Account Manager will provide CLEC a written assessment of the 
     request. After CLEC receives Pacific's assessment, the parties will 
     negotiate in good faith to reach an agreement. If no agreement is reached 
     within 30 days of receipt of the specifications, the dispute will be 
     resolved pursuant to Section 4 hereof.

3.3  INTERCOMPANY CONTACTS

     The Pacific Account Management Team will serve as the Single Point of 
     Contact (SPOC) and coordinate all activities under the scope of this JIA 
     with CLEC's SPOC, as noted below. These individuals will manage the 
     exchange of information between the two companies.

<TABLE>
          PACIFIC SPOC:                      CLEC SPOC:
          -----------------------------      -------------------------------
          <S>                                <C>
          Dianna Scott, Account Manager      Jim Couch
          370 Third Street, Room 716         President
          San Francisco, CA 94107            One Kearny Street, Suite 1450
          Tel: 415 542-7281                  San Francisco, CA 94108
                                             Tel: 415 837-5300
                                             Fax: 415 392-9000
</TABLE>

3.4  INTERFACE CONTROL DOCUMENT

     3.4.1 The construction and execution of the interface implementation will 
     be fully documented by Pacific in an Interface Control Document. The 
     Interface Control Documents for the interfaces are listed in Section 2.2, 
     Scope.

     3.4.2 Interface Control Documents (ICD) identified in Section 2.2, Scope,
     serve to formalize the technical requirements and applicable business rules
     of functionality that the interface provides.

     3.4.3 Draft ICDs will be jointly reviewed and discussed. Once Pacific 
     issues the final ICD, Pacific will respond to written questions regarding 
     the ICDs. Any disputes regarding ICDs will be resolved pursuant to Section 
     4 hereof. Request for changes to the final ICD content will be handled via 
     the Change Control Process.

     3.4.4 Once an ICD has been established and Pacific plans a modification or 
     new functionality for an Interface, the ICD will be revised and CLEC will 
     be notified as described above in Section 3.2. Any disputes regarding ICDs 
     will be resolved pursuant to Section 4 hereof. The modified ICD will be 
     accompanied by a summary of the changes and identified by the date of 
     issue.
       
<PAGE>   189
3.5     INTERFACE TESTING

        3.5.1 Pacific and CLEC will perform interface testing as mutually agreed
        in the Test Plan. The parties will conduct testing on a set of interface
        functions for no longer than the interval specified in the Joint Testing
        Plan, unless a longer interval is mutually agreed to by both parties.
        Should the parties not agree whether a successful test was obtained
        within the specified interval, any disputes will be resolved pursuant to
        Section 4 hereof.

3.6     CHANGE CONTROL PROCESS

        3.6.1 Changes to the interface that are subject to the OBF and TCIF
        guidelines will be handled through the OBF and TCIF processes. Finalized
        OBF and TCIF guidelines that require or provide opportunity to change
        the interface will be managed as described in this JIA and the Change
        Control Process flow detail in Section 3.6.6 below.

        3.6.2 For all other changes, Pacific and CLEC SPOCs will serve as the
        liaison to receive the request. These requests will be reviewed and
        responded to by all parties based upon the guidelines established in
        this JIA and the Change Control Process flow detail in Section 3.6.6
        below. Any disputes will be resolved pursuant to Section 4 hereof.

        3.6.3 At such time that a written change is determined to be
        incorporated into the interface implementation, the appropriate ICDs
        will be updated to reflect such change or the agreement will be
        documented in correspondence. No verbal agreements or discussions will
        be construed to be final until this step has been executed. Any disputes
        will be resolved pursuant to Section 4 hereof.

        3.6.4 Change documentation (e.g. revised system specifications, etc.)
        will not be incorporated into the JIA but will be governed by it.

        3.6.5 Section 3.7 identifies the types of changes that will be
        identified by Pacific and CLEC within this JIA and those changes will
        adhere to the Change Control Process flow detail described in Section
        3.6.6 below. This process will pertain to changes initiated by Pacific
        and changes requested by CLEC within the scope of the implementation of
        the interface. Work on the affected interface may proceed, but in no
        case will implementation occur before disputes are resolved pursuant to
        Section 4 hereof.

        3.6.6 in all instances CLEC will receive written notice in order to
        evaluate the issue and have the opportunity to discuss it with Pacific.
        Any disputes will be resolved pursuant to Section 4 hereof.
        Specifically, these actions will follow the Change Control Process flow
        detail described in Sections 3.6.6.1 and 3.6.6.2 below.

                3.6.6.1 Flow detail for changes required to be made by CLEC to
                meet conversion date:

                1.  As the EDI/LSR issue requirements are being determined at
                    OBF, they are reviewed by Pacific to determine Pacific's LSR
                    Usage requirements.

                2.  A preliminary package of the charges is completed.

<PAGE>   190

 4. The Initial Notification of changes will be via an Accessible Letter and
    will be supplemented with Account Team correspondence where appropriate. 
    The letter will be distributed to CLEC, including the CLEC SPOC identified 
    in Section 3.3 above, and will contain the Pacific plans for issue content 
    and a proposed date of implementation.

 5. CLEC may send a written response through their Pacific Account Manager 
    within 14 calendar days of the letter date if issues exist or clarification 
    is requested.

 6. The response will specify elements of contention and detail CLEC's 
    alternative recommendations for implementation where issues exist. These 
    should be handled through the Pacific Account Manager who will forward them 
    to the appropriate organization within Pacific.

 7. These responses will be reviewed and considered by Pacific and appropriate 
    action will be taken, including attempting to resolve CLEC's issues.

 8. A written response will be forwarded to CLEC through the Account Manager 
    within 14 calendar days after the cutoff date for all responses (28 
    calendar days after date of Initial Notification). Any changes that may 
    occur as a result of the responses will be distributed to CLEC via another 
    Accessible Letter.

 9. Once the LSOG Version and/or EDI Release Package is finalized it will be 
    reviewed again by Pacific for any alterations that may be necessary.

10. The Final Notification will be sent to CLEC via an Accessible Letter. The 
    letter will contain the requirements for the new release and the planned 
    implementation date.

11. Again, CLEC may send a written response within 14 calendar days through 
    their Account Manager. The response will specify elements of contention and 
    detail CLEC's alternative recommendations for implementation where issues 
    exist, including issues with the planned implementation date.

12. A written response will be forwarded to CLEC through the Account Manager 
    within 14 days after the cutoff date for all CLEC responses (28 calendar 
    days after date of Final Notification). Any changes that may occur as a 
    result of the responses will be distributed to CLEC via another Accessible 
    Letter.

13. Should CLEC elect to dispute any portion of Pacific's response detailed in 
    11 above, CLEC must initiate such dispute within 10 calendar days of 
    Pacific's response. This period will allow reasonable time for a Majority 
    Vote process to be conducted.

14. Testing will be conducted, to the satisfaction of CLEC and Pacific, until 
    the mutually agreed upon interface testing criteria has been satisfied.

15. If the Parties don't agree that testing has been successfully completed 
    within the planned time frame, they may utilize the provisions of Section 
    4, hereof to resolve the issue.

16. The new release or updates are implemented. If a dispute resolution 
    procedure has been initiated pursuant to item 12 above and Section 4, 
    implementation will proceed following the provisions of Section 4.


<PAGE>   191


3.6.6.2 Flow detail for changes which may be made at CLEC's option (i.e. does
not impact current order production) on or after Pacific's conversion date:

1.   As the EDI/LSR issue requirements are being determined at OBF, they are
     reviewed by Pacific to determine Pacific's LSR Usage requirements.

2.   A preliminary package of the changes is compiled.

3.   Notification will be sent to CLEC, including the CLEC SPOC identified in
     Section 3.3 above, via an Accessible Letter and will be supplemented with
     Account Team correspondence where appropriate. The letter will contain the
     requirements for the new release and the planned implementation date.

4.   CLEC may send a written response within 14 calendar days through their
     Account Manager. The response should specify elements of contention, detail
     why there is programming impact to CLEC and, if appropriate, detail CLEC's
     alternative recommendations for implementation, including issues with the
     planned implementation date.

5.   These responses will be reviewed and considered by Pacific and appropriate
     action will be taken, including attempting to resolve CLEC's issues.

6.   A written response will be forwarded to CLEC through the Account Manager
     within 14 calendar days after the cutoff date for responses (28 calendar
     days after date of Notification). Any changes that may occur as a result of
     the responses will be distributed to CLEC via another Accessible Letter.

7.   Should CLEC elect to dispute any portion of Pacific's response detailed in
     6 above, CLEC must initiate such dispute within 10 calendar days of
     Pacific's response. This period will allow reasonable time for a Majority
     Vote process to be conducted.

8.   If CLEC will utilize the optional capability upon the release date, testing
     will be conducted, to the satisfaction of CLEC and Pacific, until the
     mutually agreed upon interface testing criteria has been satisfied.

9.   If the Parties don't agree that testing has been successfully completed
     within the planned time frame, they may utilize the provisions of Section
     4, hereof to resolve the issue.

10.  The new release or updates are implemented. If a dispute resolution
     procedure has been initiated pursuant to item 7 above and Section 4,
     implementation will proceed after resolution of the dispute. 
<PAGE>   192
3.7  CHANGE TYPES

     3.7.1  Major Change - Substantial technical process, Business Rule 
            modification(s) or change(s) to the interfaces that are required 
            and which will significantly impact the data transactions and system
            coding. Major changes including new categories of functionality not 
            included within the original scope and functionality covered by 
            this JIA will be incorporated into a new release that will be 
            subjected to a new JIA.

     3.7.2  Minor Change - Minor technical process, Business Rule 
            modification(s) or change(s) to the interfaces that are required, 
            but are easily incorporated into data transactions and system 
            coding. Minor changes may trigger a revision to an existing JIA but 
            will not require a new release and its corresponding new JIA.

3.8  IMPLEMENTATION SCHEDULING

     3.8.1  Section 5, Implementation Schedule, will be included in the initial 
     JIA for the defined interface. If a subsequent JIA needs to be issued in 
     connection with making major changes as described above, Pacific will 
     coordinate with interface users and publish a new Implementation Schedule 
     as outlined in Section 5 of the new JIA. Any disputes will be resolved 
     pursuant to Section 4 hereof.

     3.8.2  When a minor change is to be implemented but does not necessitate a 
     revision to this JIA, notification of implementation timelines for the 
     particular change(s) will be provided in writing to CLEC. Any disputes 
     will be resolved pursuant to Section 4 hereof.
<PAGE>   193
4.   OSS DISPUTE RESOLUTION

4.1  NEGOTIATIONS AND ESCALATION

     When the parties are not in agreement on Pacific's proposed business 
     rules, test plan, implementation, timeline or other aspects of an OSS 
     interface covered by this JIA, the parties shall promptly commence the 
     escalation process provided for in Section 4 of Appendix C of Attachment 
     11 of the Interconnection Agreement. The parties shall act and negotiate 
     in good faith using their best efforts to reach an agreement on the 
     disputed interface that is consistent with the needs of the industry (while
     recognizing reasonable cost and technical constraints) and that recognizes 
     that the interface must be made available by Pacific on a 
     nondiscriminatory basis and at parity to all CLECs and cannot be designed 
     to advantage or disadvantage any particular CLEC.

4.2  MAJORITY VOTE

     If the process described in Section 4.1 above does not resolve a dispute,
     CLEC may, in its sole discretion, either accept Pacific's position on the
     dispute or elect to seek the vote of other Affected CLECs (as defined in
     Section 4.3.1) that Pacific's position on the dispute is not acceptable to
     such Affected CLECs. Unless the Majority Vote (as defined in Section 4.3.2)
     is in favor of the proposed disputed change, Pacific shall not proceed with
     the proposed disputed change. If Pacific fails to garner a Majority Vote in
     favor of its position, at Pacific's election, Pacific will commence
     negotiations with the Affected CLECs to develop a position that is
     supported by a Majority Vote. The ability to appeal to the CPUC Staff for
     resolution has not been agreed to by the parties and will be resolved via
     Alternate Dispute Resolution.

4.3  DEFINITIONS FOR SECTION 4

     4.3.1.    "Affected CLECs" shall mean all CLECs which are using a 
     particular Pacific OSS interface as to which a dispute exists where 
     resolution of the dispute will impact such Affected CLECs usage of such 
     interface, all CLECs which are testing or are in the process of 
     implementing such OSS interface and all CLECs which have indicated a 
     definite intent to test, implement or use such OSS interface within the 
     next three months. Pacific shall not be treated as an "Affected CLEC" for 
     this purpose and shall have no vote. CLECs that are affiliates of each 
     other shall be considered the same CLEC.

     4.3.2.    "Majority Vote" shall mean 50% or more of all written statements 
     submitted by at least a Quorum of Affected CLECs to Pacific and CLEC 
     indicating that the signing Affected CLECs either (1) object to or (2) 
     support Pacific's position. Where a number of Affected CLECs join together 
     in one written statement, the votes of each Affected CLEC joining in the 
     statement shall be counted as if each had filed an individual statement. 
     For purposes of this definition, "Quorum" shall constitute two-thirds of 
     the Affected CLECs. In the event of a tie, the change proposed shall be 
     implemented by Pacific. In the event that less than two-thirds of Affected
     CLECs vote, the proposed change will not have garnered a Majority Vote, the
     proposed change will not be implemented, and the dispute will be submitted
     to the CPUC staff for resolution.

 
<PAGE>   194
5.   IMPLEMENTATION SCHEDULE

     Phase 1:  Documentation Released:       12/1/97   Number Portability orders


     Phase 2:  Joint Test Plan Developed:    5/27/98   Number Portability orders

     Phase 3:  Joint Testing:       6/1/98 - 6/19/98   Number Portability orders

     Phase 4:  Implementation:               6/22/98*  Number Portability orders

     *    CLEC implementation date only -- Pacific Bell in production as of 
          3/1/198
     *    Based on successful completion of joint testing    
<PAGE>   195
6.   AUTHORIZED SIGNATURES

     Pacific and CLEC have indicated their approval of the terms contained 
     within this Joint Implementation Agreement by the signatures of their 
     authorized representatives below.



PACIFIC                                 CLEC



By:___________________                  By:___________________________


Title:________________                  Title:________________________


Date:_________________                  Date:_________________________
<PAGE>   196
                                 ATTACHMENT 12
                                 -------------
                                        
                                  MAINTENANCE
                                  -----------
<PAGE>   197
                                                                   Attachment 12
                                                                          Page 1

                                 ATTACHMENT 12

                                  MAINTENANCE

1.      PACIFIC shall provide repair, maintenance, testing and surveillance for 
        all Local Services and unbundled Network Elements and Combinations in 
        accordance with the terms and conditions of the Attachment.

2.      PACIFIC and CLEC shall mutually agree on appropriate maintenance 
        standards for all Local Services and unbundled Network Elements and 
        Combinations ordered under this Agreement. Such maintenance standards 
        shall include, without limitation, standards for testing, network 
        management, call gapping, and notification of upgrades as they become 
        available. Such maintenance standards shall be set forth in Attachment 
        17 to this Agreement.

3.      Maintenance and Repair Functions

3.1     Initial Electronic Bonding Interface Functions

        PACIFIC will have in place by April 10, 1997 a real time electronic
        system-to-system interface ("EBI") consistent with ATIS industry
        standards, to enable CLEC to perform any necessary maintenance and
        repair functions, including the ability to enter a new trouble ticket
        into the PACIFIC maintenance system for an CLEC Customer; the ability to
        retrieve and track current status on all CLEC Customer repair tickets;
        the ability to schedule maintenance appointments by day and time on a
        real-time basis and the ability to verify that the trouble has been
        resolved by work completed on the Customer's premises to the Minimum
        Point of Entry (MPOE) (collectively "EBI Functions"). Prior to
        implementation of EBI, PACIFIC will offer CLEC the use, at CLEC's
        option, of two interim interfaces for the performance of EBI Functions:
        (i) an 800 number and (ii) access to the PBSM system. PACIFIC will
        structure these interim interfaces so that CLEC will be able to perform
        all EBI Functions on an interim basis using the 800 number and the
        majority of the EBI using PBSM.

3.2     Additional Maintenance Functions

        Prior to the development of ATIS standards for adding to EBI (a) the 
        ability to retrieve MLT results, (b) the ability to retrieve "Dispatch 
        In-Dispatch Out" codes, and (c) the ability to retrieve all applicable 
        time and material charges at the time of ticket closure (itemized by 
        customer for each repair incident to


                                                                        12/12/96
<PAGE>   198
                                                                   Attachment 12
                                                                          Page 2

      show time spent, nature of trouble, how trouble was resolved, charges for
      individual items such as materials, if any, and total charges)
      (collectively "Maintenance Functions"), PACIFIC and CLEC will mutually
      agree on a process to accomplish CLEC's request for the Maintenance
      Functions on an interim, pre-EBI basis, and the cost, if any, to provide
      the Maintenance Functions.

4.    EBI Implementation

4.1   Maintenance and repair information exchange relating to all Local
      Services, Network Elements and Combinations provided under this Agreement
      will be transmitted over the same interface according to the same content
      definition. CLEC and PACIFIC will, for the purpose of exchanging fault
      management information, establish an EBI, based upon ANSI standards
      T1.227-1995 and T1.228-1995, and Electronic Communication Implementation
      Committee (ECIC) Trouble Report Format Definition (TRFD) Number 1 as
      defined in ECIC document ECIC TRA/95-003, and all standards referenced
      within those documents. The parties agree to adopt for EBI the functions
      currently implemented for reporting access circuit troubles. These
      functions include Enter Trouble, Request Trouble Report Status, Add
      Trouble Information, Modify Trouble Report Attributes, Trouble Report
      Attribute Value Change Notification and Cancel Trouble Report, all of
      which are fully explained in clauses 6 and 9 of ANSI T1.228-1995.

4.2   CLEC and PACIFIC will exchange requests over a mutually agreeable X.25
      based network or, if both CLEC's and PACIFIC's platforms are capable, a
      mutually agreeable TCP/IP based network may be employed. CLEC and PACIFIC
      will translate maintenance requests or responses originating in their
      internal processes into the agreed upon attributes and elements. Both
      parties, agree to complete mutually consistent translations within two (2)
      months after the Effective Date of this Agreement and to proceed to
      systems readiness testing that will result in a fully operational
      interface for local service delivery within four (4) months after the
      Effective Date of this Agreement. Changes to Network Operations Forum
      (NOF), ECIC or T1M1 standards, to the extent local service maintenance and
      repair are affected, will be implemented based upon a mutually agreeable
      schedule, but in no case will the time for adoption, including testing of
      the changes introduced, extend more than one (1) year beyond the date of
      initial closure by the relevant ATIS committee or subcommittee.

5.    In the event a PACIFIC employee misses a scheduled repair appointment on
      behalf of CLEC, PACIFIC will notify CLEC within one (1) hour of the missed
      appointment, either by EBI or by telephone.

6.    PACIFIC technicians shall provide repair service to CLEC Customers that is
      equal in quality to that provided to PACIFIC customers. Trouble calls from


                                                                        12/12/96
<PAGE>   199
                                                                   Attachment 12
                                                                          Page 3

     CLEC shall receive response time priority that is at least equal to that of
     PACIFIC customers and shall be handled on a "first come first served" basis
     regardless of whether the customer is an CLEC Customer or a PACIFIC
     customer. Prior to EBI, CLEC may ask PACIFIC to reprioritize an CLEC
     customer trouble report among CLEC's other customer trouble reports and
     PACIFIC will reprioritize CLEC's various customer reports as requested by
     CLEC, if possible.

7.   PACIFIC shall provide CLEC with the same scheduled and non-scheduled
     maintenance, including, without limitation, required and recommended
     maintenance intervals and procedures, for all Local Services, Network
     Elements and Combinations provided to CLEC under this Agreement that it
     currently provides for the maintenance of its own network. PACIFIC shall
     provide CLEC at least ten (10) business days advance notice of any
     scheduled maintenance activity which may impact CLEC Customers. Scheduled
     maintenance shall include, without limitation, such activities as switch
     software retrofits, power tests, major equipment replacements and cable
     rolls. Plans for scheduled maintenance shall include, at a minimum, the
     following information: location and type of facilities, specific work to be
     performed, date and time work is scheduled to commence, work schedule to be
     followed, date and time work is scheduled to be completed and estimated
     number of work-hours for completion.


8.   PACIFIC shall advise CLEC of non-scheduled maintenance, testing,
     monitoring, and surveillance activity to be performed by PACIFIC on any
     Network Element, including, without limitation, any hardware, equipment,
     software, or system providing service functionality which may potentially
     impact CLEC Customers. PACIFIC shall provide the maximum advance notice of
     such non-scheduled maintenance and testing activity possible, under the
     circumstances; provided, however, that PACIFIC shall provide emergency
     maintenance as promptly as possible to maintain or restore service and
     shall advise CLEC promptly of any such actions it takes.

9.   PACIFIC shall provide CLEC with a detailed description of any and all
     emergency restoration plans and disaster recovery plans, however
     denominated, which are in place during the term of this Agreement. Such
     plans shall include, at a minimum, the following: (i) procedures for prompt
     notification to CLEC of the existence, location, and source of any
     emergency network outage potentially affecting an CLEC Customer, via the
     EBI to be established pursuant to Sections 3 and 4; (ii) establishment of a
     single point of contact responsible for initiating and coordinating the
     restoration of all Local Services and Network Elements or Combinations;
     (iii) methods and procedures to provide CLEC with real-time access to
     information relating to the status of restoration efforts and problem
     resolution during the restoration process; (iv) methods and procedures for
     reprovisioning of all Local Services



                                                                        12/12/96

<PAGE>   200
                                                                   Attachment 12
                                                                          Page 4

          and Network Elements or Combinations after initial restoration; (v)
          equal priority, as between CLEC Customers and PACIFIC customers, for
          restoration efforts, consistent with FCC Service Restoration
          guidelines, including, without limitation, deployment of repair
          personnel, and access to spare parts and components; and (vi) a
          mutually agreeable process for escalation of maintenance problems,
          including a complete, up-to-date list of responsible contacts, each
          available twenty-four (24) hours per day, seven (7) days per week.
          Said plans shall be modified and up-dated as needed. PACIFIC shall 
          notify CLEC, within one hour, of all Category I Equipment and/or 
          facility failures affecting CLEC customer service as itemized in 
          PACIFIC reference S.I. 131, as amended by PACIFIC from time to time. 
          A copy of the relevant portion of S.I. 131 in effect on the effective 
          date of this Agreement is attached to this Attachment as Appendix A.

10.       PACIFIC and CLEC shall establish mutually acceptable methods and 
          procedures for referring callers to the 800/800 number supplied by 
          the other Party for purposes of receiving misdirected calls from 
          customers requesting repair.

11.       PACIFIC's Interconnection Service Center (ISC) shall conform to the 
          performance and service quality standards set forth in Attachment 17 
          when providing repair and maintenance to CLEC and CLEC Customers 
          under this Agreement.

11.1.     If service is provided to CLEC Customers before EBI is established 
          between CLEC and the PACIFIC, CLEC will transmit its repair calls to 
          the PACIFIC ISC by telephone.

11.2.     ISC, and Electronic Bonding, once deployed, shall be on-line and 
          operational and the interim interfaces described in Section 3 
          preceding shall be operational twenty-four (24) hours per day, seven 
          (7) days per week.

11.3.     Progress reports and status of repair efforts shall be available to 
          CLEC through EBI. On an interim basis before implementation of EBI, 
          PACIFIC shall provide progress reports and status of repair efforts 
          to CLEC via an 800 number supplied by PACIFIC or via PBSM, at CLEC's 
          option.

11.4.     Within thirty (30) days after the execution of this Agreement, 
          PACIFIC shall provide CLEC with written escalation procedures to be 
          followed if, in CLEC's reasonable judgment, any individual trouble 
          ticket or tickets are not resolved in a timely manner. Resolution 
          shall be deemed untimely if delayed beyond PACIFIC's best practices 
          for resolution of troubles reported by PACIFIC's own customers. The 
          escalation procedures to be provided hereunder shall include names 
          and telephone numbers of PACIFIC management personnel who are 
          responsible for maintenance issues.

<PAGE>   201
                                                                   Attachment 12
                                                                          Page 5

11.5.     In the event PACIFIC shall fail to conform to the performance 
          standards in Attachment 17, CLEC may request, and PACIFIC shall 
          perform an analysis of the reason behind PACIFIC's failure to 
          conform, and PACIFIC shall correct said cause as soon as reasonably
          practical, at its own expense.

11.6.     Maintenance charges for premises visits by PACIFIC technicians shall 
          be billed by CLEC to its Customer, and not by PACIFIC. All forms, 
          business cards or other materials furnished by PACIFIC technicians to 
          CLEC Customers will contain no brand. If the CLEC Customer is not at 
          home when the PACIFIC technician arrives, the PACIFIC technician 
          shall leave on the premises "not-at-home" cards that are unbranded 
          but include a contact number for CLEC. The PACIFIC technician will 
          not leave on the premises a PACIFIC-branded "not-at-home" card".

11.7.     Dispatching of PACIFIC technicians to CLEC Customer premises shall be 
          accomplished by PACIFIC pursuant to a request received from CLEC.

<PAGE>   202

                                                      Attachment 12 - Appendix A
                                                                          Page 1


CATEGORY I                EQUIPMENT AND/OR FACILITY FAILURES AFFECTING
                          CUSTOMER SERVICE.

                          CATEGORY I BROADBAND
Types of Customer         o Frame Relay - A failure of one or more channelized
Service Quality Failure     T1 carrier systems or two or more non-channelized T1
Reports and Criteria        carrier systems.
                          o ATM - A failure of one OC3 or two DS3s.
                          o SMDS - A failure of one DS3 or four T1s.
                          o Packet Switching - Any failure of an access module 
                            (AM) or resource module (RM).

                          CATEGORY I NARROWBAND
                          o 5 T1 carrier systems (120 or more voice grade 
                            channels) failure.
                          o 500 or more voice grade radio channels failure.
                          o A community isolation.
                          o E911
                               o A transport equipment failure that isolates a 
                                 central office from the E911 network. (Local
                                 switch to the tandem e.g. DACS, OC12, DEXCS
                                 failure, etc.)
                               o A transport equipment failure that isolates a 
                                 Public Safety Answering Point (PSAP) from the 
                                 E911 tandem.
                               o A transport equipment failure that results in
                                 the loss of 25% or more of the trunks/circuits
                                 (aggregate) from an E911 tandem to the PSAPs
                                 served by that tandem.

                          CATEGORY I CABLE
                          o Local - 200 or more working pairs are affected.
                          o Toll - 120 or more interoffice trunks are affected.
                          o Fiber - Any working fiber providing customer 
                            service that fails without protection.
                          o E911
                               o A transport cable failure that isolates a 
                                 central office from the E911 network. (Local 
                                 switch to the E911 tandem)
                               o A transport cable failure that isolates a PSAP
                                 from the E911 tandem)
                               o A transport cable failure that results in the 
                                 loss of 25% or more of the trunks/circuits 
                                 (aggregate from an E911 tandem to the PSAPs 
                                  served by that 

<PAGE>   203
                                                      Attachment 12 - Appendix A
                                                                          Page 2

                        tandem.

                CATEGORY I SWITCHING MACHINES

                * Any switch congestion that results in 40% or more dial tone
                  delay lasting 15 minutes or longer.

                * Complete loss of inward and/or outward call processing
                  capability from a central office lasting 5 minutes or longer.

                * Any service interruption resulting in 50 or more customer
                  reports.

                * A duplex connectivity failure to the SS7 network, e.g.
                  MSB7/LPP frame, link set, CNI, etc.

                * Loss of interoffice calling from more than 10 minutes.

                * An FYI report should be filed anytime a central office has
                  been on battery power (greater than)30 minutes, when it is 
                  not part of a routine test.

                * E911

                        * A central office isolated from the E911 network for 15
                          minutes or longer.

                        * Loss of 25% or more of the trunking capability from an
                          E911 tandem to the PSAPs it serves for 15 minutes or
                          longer (e.g. translations, trunk frame failure, etc.).

                        * A PSAP isolation from the E911 network for 15 minutes
                          or longer (e.g. translations, trunking problem, etc.)

                CATEGORY I COMMUNITY ISOLATION

                A community isolation occurs when no incoming or outgoing toll
                service is available and the community is cut off from the
                outside world by rural geography. A central office failure
                within a metropolitan area is not considered a community
                isolation since the community can more easily reach phone
                service in the adjacent central office serving area.

                CATEGORY I MEDIA INTEREST

                Any interruption or outage that may cause public or news media
                attention.

                CATEGORY I TANDEM/TOPS

                * Failures or potential loss of call completions/processing.

                * Failures affecting Operator Service capabilities.

                (See page 24 for detailed reporting criteria.)

                CATEGORY I SS7

                Loss of mated pair of STP or SCP. Any SS7 failure causing
<PAGE>   204
                                                      Attachment 12 - Appendix A
                                                                          Page 3

                50 customer reports from a single central office or 100 customer
                reports from several central offices within a maintenance
                center.

                CATEGORY I PUBLIC SAFETY/SERVICE AGENCIES

                * Federal Government, equipment or facility affecting 5 or more
                  military special communications, isolations of FAA location or
                  air ground facilities.

                * State and local agencies interruptions seriously affecting
                  service to police, fire departments, hospitals, press,
                  military, and PBSs.
<PAGE>   205




                                 ATTACHMENT 13


                       CONNECTIVITY BILLING AND RECORDING
<PAGE>   206
                                                                   Attachment 13

                               TABLE OF CONTENTS

CONNECTIVITY BILLING AND RECORDING

1.  General.............................................................       1
2.  Transition to CABS..................................................       1
3.  Billable Information And Charges....................................       1
4.  Meet Point Billing..................................................       4
5.  Collocation.........................................................       6
6.  Mutual Compensation.................................................       6
7.  Issuance of Connectivity Bills - General............................       9
8.  Electronic Transmissions............................................       8
9.  Tape or Paper Transmissions.........................................       8
10. Testing Requirements................................................      11
11. Bill Accuracy Certification.........................................      11
12. Additional Requirements.............................................      11
13. Payment Of Charges..................................................      12
14. Billing Disputes....................................................      13
15. Late Payment Charges................................................      14
16. Adjustments.........................................................      14
17. Recording Of Call Information.......................................      14

Appendix A:

     Pre-Bill Certification Operating Agreement

Appendix B:

     Schedule for Transition to CABS

     Schedule For Agreement On Specifications For Electronic Transmission And 
     Start Date For Implementation Of Transmission Method
<PAGE>   207
                                                                   Attachment 13
                                                                          Page 1

                       CONNECTIVITY BILLING AND RECORDING



1.   GENERAL

     This Attachment describes the requirements for PACIFIC to bill and record
     all charges CLEC incurs for purchasing Local Services for resale and for
     Network Elements and combinations, and describes the requirements for
     PACIFIC and CLEC to bill and record all charges incurred to provide Meet
     Point Billing and Mutual Compensation. In addition to the terms and
     conditions set forth in this Attachment 13, CLEC and PACIFIC will use
     their best efforts to complete and sign by November 30, 1996 a Pre-Bill
     Certification Operating Agreement, which, when executed by both parties,
     will become Appendix A to this Attachment 13. The performance measurements
     applicable to Connectivity Billing and Recording are set forth in
     Attachment 17.

2.   TRANSITION TO CABS

     PACIFIC shall use a phased approach to introduce billing through CABS for
     Local Services. Network Elements and Combinations provided to CLEC under
     this Agreement. PACIFIC agrees to complete the conversion of CABS billing
     for Local Services, Network Elements and Combinations provided under this
     Agreement in accordance with the schedule set forth in Appendix B to this
     Attachment 13.

2.1  Each Party agrees to deliver billing information in the CABS format
     mutually agreed to and implemented by the Parties. Each reference to CABS
     in this Attachment 13 shall be understood prior to the date of CABS
     conversion to refer to the applicable pre-CABS billing system. Each
     reference to CABS in this Attachment 13 shall be understood as of the date
     of CABS conversion to refer to CABS.

2.2  Notwithstanding any other provisions or language to the contrary in this
     Agreement, the Parties agree to cease delivering billing information in
     CABS format, and to instead utilize the CRIS format, for resold Local
     Services effective May 11, 1998. Until such time as CLEC has developed and
     tested a conversion of its resale billing platform for CABS to CRIS, CLEC
     agrees to accept a paper CRIS bill beginning May 11 for resold Local
     Services. The Parties agree that CLEC's acceptance of a paper CRIS bill
     shall constitute conversion from CABS to CRIS."

3.   BILLABLE INFORMATION AND CHARGES

3.1  PACIFIC currently uses FABS, CRIS and CABS to bill the Network Elements.
     Local Services and Combinations that CLEC plans to purchase. PACIFIC will

<PAGE>   208
                                                                   Attachment 13
                                                                          Page 2



     convert billing for all Network Elements, Local Services and Combinations
     to a CABS billing format in accordance with the schedule set forth in
     Appendix B. References to CABS billing in this Attachment apply to billing
     for the specified service following conversion to CABS.

3.2  PACIFIC will bill and record in accordance with this Attachment those
     charges CLEC incurs as a result of CLEC purchasing from PACIFIC Network
     Elements, Combinations and Local Services, as set forth in this Agreement
     (hereinafter "Connectivity Charges"). The Parties agree that, except as
     expressly provided in this Attachment, CABS or predecessor billing systems
     will comply with OBF standards.

3.3  Each bill for Connectivity Charges (hereinafter "Connectivity Bill") shall
     be formatted in accordance with CABS, CRIS or FABS, as appropriate,
     pursuant to the CABS Conversion schedule set forth in Appendix B. Each
     Element, Combination, or Local Service, purchased by CLEC shall be assigned
     a separate and unique billing code in the form agreed to by the Parties and
     such code shall be provided to CLEC on each Connectivity Bill in which
     charges for such Elements, Combinations, or Local Services appear. Each
     such billing code shall enable CLEC to identify the Element(s), or
     Combinations and Options as described in Attachment 11 to this Agreement
     ordered by CLEC, or Local Services ordered or utilized by CLEC in which
     Connectivity Charges apply pursuant to this Agreement. Each Connectivity
     Bill shall set forth the quantity and description of each such Element,
     Combination, or Local Service provided and billed to CLEC. All Connectivity
     Charges billed to CLEC must indicate the state from which such charges were
     incurred.

3.4  PACIFIC shall provide CLEC monthly Connectivity Bills that include all
     Connectivity Charges incurred by and credits and/or adjustments due to CLEC
     for those Elements, Combination thereof, or Local Services ordered,
     established, utilized, discontinued or performed pursuant to this
     Agreement. Each Connectivity Bill provided by PACIFIC to CLEC shall
     include: (1) all non-usage sensitive charges incurred for the period
     beginning with the day after the current bill date and extending to, and
     including, the next bill date, (2) any known unbilled non-usage sensitive
     charges for prior periods, (3) unbilled usage sensitive charges for the
     period beginning with the last bill date and extending up to, but not
     including, the current bill date, (4) any known unbilled usage sensitive
     charges for prior periods, and (5) any known unbilled adjustments.

3.5  The Bill Date, as defined herein, must be present on each bill transmitted
     by PACIFIC to CLEC.

<PAGE>   209
                                                                   Attachment 13
                                                                          Page 3

3.6      Subject to Sections 3.6.4 and 3.6.5, PACIFIC shall not provide any
         Connectivity Bills to CLEC having a Bill Date any later than the
         following dates:

3.6.1.   Sixty (60) days following the recording date for all resale usage and
         LSNE usage, except for calls requiring data exchange with third party
         carriers. e.g. intraLATA 0+ calls made within another state, which
         calls are subject to Section 3.6.2.

3.6.2    One hundred twenty (120) days following the recording date for calls
         requiring data exchange with third party carriers.

3.6.3    Sixty (60) days following the date the charges are incurred for all
         other Network Elements, Combinations, and all non-usage resale or LSNE
         charges.

3.6.4    The time limits set forth in Sections 3.6.1 and 3.6.2 are effective
         immediately. The time limit set forth in Section 3.6.3 will be
         effective six (6) months following the effective date of this
         Agreement.

3.6.5    If any billing error is identified, quantified and communicated in
         writing by PACIFIC to CLEC within the time periods set forth in Section
         3.6.3 above after Connectivity Charges are incurred, Pacific will have
         a maximum of one hundred twenty (120) days after the Connectivity
         Charges are incurred to render correct Connectivity Bills therefor.

3.6.6    Provided that CLEC continues to participate in the Pre-Bill
         Certification Procedures described in Appendix A to this Attachment, no
         payment shall be due from CLEC for any Connectivity bill received by
         CLEC from PACIFIC that fails to meet the timeliness requirements of
         Section 3.6.1 through 3.6.5 of this Attachment.

3.6.7    On each bill where "Jurisdiction" is identified, local and local toll
         charges shall be identified as "Local" and not as interstate,
         interstate/interLATA, intrastate, or intrastate/intraLATA.


3.7      PACIFIC shall bill CLEC for each Element, Combination thereof, or Local
         Service, supplied by PACIFIC to CLEC pursuant to this Agreement at the
         rates set forth in Attachment 8. PACIFIC will bill CLEC based on the
         actual Connectivity Charges incurred, provided, however, for those
         usage-based Connectivity Charges where actual charge information is not
         determinable by PACIFIC because the jurisdiction (i.e., interstate,
         interstate/interLATA, intrastate, intrastate/intraLATA, local) of the
         traffic is unidentifiable, the parties will jointly develop a process
         to determine the appropriate charges.

3.8      Each party shall be responsible for (1) all costs and expenses it
         incurs in complying with its obligations under this Attachment 13 and
         (2) the

<PAGE>   210
                                                                   Attachment 13
                                                                          Page 4

        development, modification, technical installation and maintenance of any
        systems or other infrastructure which it requires to comply with and to
        continue complying with its responsibilities and obligations under this
        Attachment 13, except that Pacific may recover the cost to implement the
        billing system changes required by this Attachment in a competitively
        neutral manner on an industry wide basis.

3.9     Each Party shall provide the other Party at no additional charge a
        contact person for the handling of any Connectivity Billing questions or
        problems that may arise during the implementation and performance of the
        terms and conditions of this Attachment.

4.      MEET POINT BILLING

4.1     CLEC and PACIFIC will establish meet-point billing ("MPB") arrangements
        for jointly provided switched access to an IEC, in accordance with the
        Meet Point Billing guidelines adopted by and contained in the OBF's
        MECAB and MECOD documents, except as modified herein. Both parties will
        use their best reasonable efforts, individually and collectively, to
        maintain provisions in their respective federal and state access
        tariffs, and provisions within the National Exchange Carrier Association
        ("NECA") Tariff No. 4, or any successor tariff to reflect the MPB
        arrangements identified in this Agreement, in MECAB and in MECOD.

4.2     CLEC and PACIFIC will implement the "Multiple Bill/Single Tariff" option
        in order to bill any interchange carrier ("IXC") for that portion of
        the network elements provided by CLEC or PACIFIC. For all traffic
        carried over the MPB arrangement, CLEC and PACIFIC shall each bill the
        IEC for its own portion of the applicable elements.

4.3     Each Party shall provide the billing name, billing address, and carrier
        identification code ("CIC") of the IXCs that may utilize any portion of
        CLEC's network in an CLEC/PACIFIC MPB arrangement in order to comply
        with the MPB Notification process as outlined in the MECAB document.
        Each party will be entitled to reject a record that does not contain a
        CIC code. Such information shall be provided by each Party to the other
        Party in the format and via the medium that the parties agree.

4.4     The Parties agree to comply with the currently effective MECAB
        guidelines as mutually adopted by the Parties from time to time.

4.5     The Parties further agree that in those MPB situations where one Party
        subtends the other Party's access tandem, the Party providing the access
        tandem is only entitled to bill the access tandem fee and any associated
        local transport charges. The Parties also agree that the Party who
        provides the


 

<PAGE>   211
                                                                   Attachment 13
                                                                          Page 5

        end office switching is entitled to bill end office switching fees,
        local transport charges, RIC and CCL charges, as appropriate, and such
        other applicable charges.

4.6     PACIFIC and CLEC will record and transmit MPB information in accordance
        with the standards and in the format set forth in this Attachment.
        PACIFIC and CLEC will coordinate and exchange the billing account
        reference ("BAR") and billing account cross reference ("BACR") numbers
        for the MPB arrangements described in this Agreement. Each Party will
        notify the other if the level of billing or other BAR/BACR elements
        change, resulting in a new BAR/BACR number.

4.7     The secondary billing company will provide to the initial billing 
        company any necessary AMA records (in standard EMR format) within
        fourteen (14) days of the recording date. The Initial billing company
        will provide the secondary billing company the necessary summary records
        with fourteen (14) days of the initial company's bill date.

4.8     If MPB data is not submitted by either Party within the period set forth
        in 4.7, or is not in the proper format as set forth in this Agreement,
        and if as a result the other Party is delayed in billing the IXC for the
        appropriate charges it incurs, the delaying Party shall pay the other
        Party a late MPB data delivery charge which will be the total amount of
        the delayed charges times the highest interest rate (in decimal value)
        which may be levied by law for commercial transactions, compounded daily
        for the number of days from the date the MPB charge information is
        actually received.

4.9     Failure of secondary billing company to provide the necessary AMA
        records (in standard EMR format) within sixty (60) days of the recording
        date or of the initial billing company to provide the necessary summary
        records within sixty (60) days of the initial billing company's bill
        date, will result in the Party failing to deliver the data to be liable
        to the other Party for any charges the other Party is unable to bill the
        IEC.

4.10    Errors in MPB data exchanged by the Parties may be discovered by CLEC,
        PACIFIC or the billable IXC. Both CLEC and PACIFIC agree to provide the
        other Party with notification of any discovered errors within ten (10)
        business days of the discovery. The other Party shall correct the error
        within twenty (20) business days of notification and resubmit the data.
        In the event the errors cannot be corrected within the time period
        specified above, the erroneous data shall be considered lost. If either
        Party fails to provide MPB data due to loss, uncorrectable errors or
        otherwise, the Parties shall follow the procedures set forth in
        Attachment 14, Section 6, for compensation of lost,
<PAGE>   212
                                                                   Attachment 13
                                                                          Page 6


          damaged or destroyed Recorded Usage data and compensate the other for 
          the lost MPB billing data.

4.11      Both Parties will provide the other a single point of contact to 
          handle any MPB questions.

5.        COLLOCATION

          When CLEC collocates with PACIFIC in LEC's facility as described in
          this Agreement, capital expenditures (e.g., costs associated with
          building the "cage"), shall not be included in the Connectivity Bill
          provided to CLEC pursuant to this Attachment. All such capital
          expenses shall be billed through FABS, identified as capital expense
          charges and given a unique and consistent Billing Account Number. All
          invoices for capital expenses shall be sent to the location specified
          by CLEC for payment. All other non-capital recurring collocation
          expenses shall be billed to CLEC in accordance with this Agreement.
          The CABS Billing Output Specifications ("BOS") documents provide the
          guidelines on how to bill the Connectivity Charges associated with
          collocation. The bill label for those collocation charges shall be
          entitled "Expanded Interconnection Service."

6.        MUTUAL COMPENSATION

6.1       The Parties shall bill each other call termination charges for local
          exchange traffic, using a CABS like format, in accordance with the
          standards set forth in this Agreement for traffic terminated to the
          other Party's customer, where both such customers bear NPA-NXX
          designations associated with the same LATA or other authorized area
          (e.g., extended area service zones in adjacent local calling areas).
          Where required, such traffic shall be recorded and transmitted to CLEC
          in accordance with this Attachment. Further, the traffic exchanged
          pursuant to this Attachment shall be measured in billing minutes of
          use and shall be in actual conversation seconds. The total
          conversation seconds per chargeable traffic type will be totalled for
          the entire monthly billing cycle and then rounded to the next whole
          conversation minute. Reciprocal compensation for the termination of
          this traffic shall be charged at rates specified in Attachment 18 to
          this Agreement.

7.        ISSUANCE OF CONNECTIVITY BILLS - GENERAL

7.1       PACIFIC and CLEC will issue all CABS Connectivity Bills in accordance 
          with the terms and conditions set forth in this Section.

7.2       PACIFIC and CLEC will establish monthly billing dates ("Bill Date") 
          for each Billing Account Number ("BAN") or Billed Telephone Number 
          ("BTN") (collectively referred to as "Account Number"), as further 
          defined in the
<PAGE>   213
                                                                   Attachment 13
                                                                          Page 7


          CABS documents, which Bill Date shall be the same day month to month. 
          Each Account Number shall remain constant from month to month, unless 
          changed as agreed to by the Parties. Each Party shall provide the 
          other Party at least thirty (30) calendar days written notice prior 
          to changing, adding or deleting an Account Number. The Parties will 
          provide one Connectivity Billing invoice associated with each Account 
          Number.

7.3       All Connectivity Bills must be received by the other Party no later 
          than ten (10) calendar days from Bill Date and at least twenty (20) 
          calendar days prior to the payment due date (as described in this 
          Attachment), whichever is earlier. Any Connectivity Bill received on 
          a Saturday, Sunday or a day designated as a holiday by the Chase 
          Manhattan Bank of New York (or such other bank as CLEC shall specify) 
          will be deemed received the next business day. If either Party fails 
          to receive Connectivity Billing data and information within the time 
          period specified above, the payment due date will be extended by the 
          number of days the Connectivity Bill is late.

7.4       PACIFIC and CLEC shall issue all CABS Connectivity Bills containing 
          such billing data and information in accordance with CABS Version 
          26.0, or such later versions of CABS as are published by Bellcore, or 
          its successor and implemented by PACIFIC or CLEC, except that if the 
          parties enter into a meet-point billing arrangement, such 
          Connectivity Billing data and information shall also conform to the 
          standards set forth in the MECAB document, or such later versions as 
          are adopted by OBF, or its successor. To the extent that there are no 
          CABS or MECAB standards governing the formatting of certain data, 
          such data shall be issued in the format mutually agreed by the 
          Parties.

7.5       Each Party will provide the other Party written notice of which 
          Connectivity Bills are to be deemed the official bills to assist the 
          Parties in resolving any conflicts that may arise between the 
          official bills and other bills received via a different media which 
          purportedly contain the same charges as are on the official bill. If 
          either Party requests an additional copy(ies) of a bill, such Party 
          shall pay the other Party a reasonable fee per additional bill copy 
          as set forth in applicable tariffs or as mutually agreed, unless such 
          copy was requested due to errors, omissions, or corrections or the 
          failure of the transmission to comply with the specifications set 
          forth in this Agreement.

7.6       To avoid transmission failures or the receipt of Connectivity Billing 
          information that cannot be processed, the Parties shall provide each 
          other with their respective process specifications and edit 
          requirements. CLEC shall comply with PACIFIC's processing 
          specifications when CLEC transmits Connectivity Billing data to 
          PACIFIC. PACIFIC shall comply with CLEC's processing specifications 
          when PACIFIC transmits Connectivity Billing data to CLEC. CLEC and 
          PACIFIC shall provide each other reasonable notice if a Connectivity 
          Billing transmission is received that does not meet such Party's

<PAGE>   214
                                                                   Attachment 13
                                                                          Page 8

        specifications or that such Party cannot process. Such transmission
        shall be corrected and resubmitted to the other Party, at the
        resubmitting Party's sole expense, in a form that can be processed. The
        payment due date for such resubmitted transmissions will be twenty (20)
        days from the date that the transmission is received in a form that can
        be processed and that meets the specifications set forth in this
        Attachment.

8.      ELECTRONIC TRANSMISSIONS

8.1     PACIFIC and CLEC agree that each party will transmit CABS Connectivity
        Billing information and data in the CABS format electronically via
        Connect: Direct (formerly known as Network Data Mover) to the other
        Party at the location specified by such Party. The Parties agree that a
        T1.5 or 56kb circuit to Gateway for Connect: Direct is required. CLEC
        data centers will be responsible for originating the calls for data
        transmission via switched 56kb or T1.5 lines. If PACIFIC has an
        established Connect: Direct link with CLEC, that link can be used for
        data transmission if the location and applications are the same for the
        existing link. Otherwise, a new link for data transmission must be
        established. PACIFIC must provide CLEC/Alpharetta its Connect: Direct
        Node ID and corresponding VTAM APPL ID before the first transmission of
        data via Connect: Direct. CLEC's Connect: Direct Node ID is "NDMATTA4"
        and VTAM APPL ID is "NDMATTA4" and must be included in PACIFIC's
        Connect: Direct software. CLEC will supply to PACIFIC its RACF ID and
        password before the first transmission of data via Connect: Direct. Any
        changes to either party's Connect: Direct Node ID must be sent to the
        other party no later than twenty-one (21) calendar days before the
        changes take effect.

8.2     The CABS Connectivity Billing information and data will be sent using
        the current OBF format implemented by mutual agreement of both Parties.

9.      TAPE OR PAPER TRANSMISSIONS

9.1     In the event either Party does not have Connect: Direct capabilities
        upon the effective date of this Agreement, such Party agrees to
        establish Connect: Direct transmission capabilities with the other Party
        within the time period mutually agreed and at the establishing Party's
        expense. Until such time, the Parties will transmit billing information
        to each other via magnetic tape or paper (as agreed to by CLEC and
        PACIFIC). Connectivity billing information and data contained on
        magnetic tapes or paper for payment shall be sent to the Parties at the
        following locations. The Parties acknowledge that all tapes transmitted
        to the other Party via U.S. Mail or Overnight Delivery and which contain
        Connectivity Billing data will not be returned to the sending Party. 



 

<PAGE>   215
TO CLEC:

          ---------------------------------------------------------------------
            Test Tapes,                     CRL Network Services
            Cassettes and                   Jim Couch, President
            Diskettes                       One Kearny Street, Suite 1450
                                            San Francisco, CA 94108
          
          ---------------------------------------------------------------------
            Production Tapes                CRL Network Services
            and Cassettes via               Jim Couch, President
            Overnight Delivery              One Kearny Street, Suite 1450
            and U.S. Mail                   San Francisco, CA 94108
          
          ---------------------------------------------------------------------
          
          ---------------------------------------------------------------------
            Production                      CRL Network Services
            Diskettes & Paper               Jim Couch, President
            Bills and Paper                 One Kearny Street, Suite 1450
            EAS/AS Bills via                San Francisco, CA 94108
            U.S. Mail
          
          ---------------------------------------------------------------------
            Production                      CRL Network Services
            Diskettes & Paper               Jim Couch, President
            Bills and Paper                 One Kearny Street, Suite 1450
            EAS/AS Bills via                San Francisco, CA 94108
            Overnight Delivery
            Service
          
          ---------------------------------------------------------------------
          
            TO PACIFIC:
          
          ---------------------------------------------------------------------
            Tape                            To be specified by Pacific Bell
            Transmissions                   when it elects tape transmission
          
          
                                            Attn:
          ---------------------------------------------------------------------
            Paper                           Pacific Bell
            Transmissions:                  CLC Compensation Manager
                                            370 3rd St., Rm. 311
                                            San Francisco, CA 94104
                                            Attn:
          ---------------------------------------------------------------------

9.2     Each Party will adhere to the tape packaging requirements set forth in 
        this subsection. Where magnetic tape shipping containers are 
        transported in freight compartments, adequate magnetic field protection 
        shall be provided by keeping a typical 6-inch distance from any 
        magnetic field generating device
<PAGE>   216
                                                                   Attachment 13
                                                                         Page 10


        (except a magnetron-tape device). The Parties agree that they will only 
        use those shipping containers that contain internal insulation to 
        prevent damage. Each Party will clearly mark on the outside of each
        shipping container its name, contact and return address. Each Party
        further agrees that it will not ship any Connectivity Billing tapes in
        tape canisters.

9.3     All billing data transmitted via tape must be provided on a cartridge 
        (cassette) tape and must be of high quality, conform to the parties'
        record and label standards, 9-track, odd parity, 6250 BPI, group coded
        recording mode and extended binary-coded decimal interchange code
        ("EBCDIC"). Each reel of tape must be 100% tested at 20% or better
        "clipping" level with full width certification and permanent error free
        at final inspection. CLEC reserves the right to destroy a tape that has
        been determined to have unrecoverable errors. CLEC also reserves the
        right to replace a tape with one of equal or better quality.

9.4     Billing data tapes shall have the following record and label standards.
        The dataset serial number on the first header record of an IBM standard
        tape label also shall have the following format.

                                CABS BOS
        Record Length           225 bytes (fixed length)
        Blocking Factor         84 records per block
        Block size              18,900 bytes per block
        Labels                  Standard IBM
                                Operating System

9.5     A single 6-digit serial number must appear on the external (flat)
        surface of the tape for visual identification. This number shall also
        appear in the "dataset serial number field" of the first header record
        of the IBM standard tape label. This serial number shall consist of the
        character "V" followed by the reporting location's four digit
        Originating Company Code and a numeric character chosen by the sending
        company. The external and internal label shall be the same. The dataset
        name shall appear on the flat side of the reel and also in the "data set
        name field" on the first header record of the IBM standard tape label.
        PACIFIC's name, address, and contact shall appear on the flat side of
        the cartridge or reel.

9.6     All labeling of tapes shall comply with OBF standards.
<PAGE>   217
                                                                   Attachment 13
                                                                         Page 11


10.     TESTING REQUIREMENTS

10.1    At least thirty (30) days prior to any billing system change there will 
        be a thirty day test period to ensure that bills can be processed by the
        Parties.

10.2    For CLEC, PACIFIC will send CLEC a mechanized CABS Connectivity Bill 
        for the first time via electronic transmission, or tape, or at least
        thirty (30) days prior to changing mechanized formats (i.e., from CRIS
        to CABS), PACIFIC shall send to CLEC Connectivity Bill data in the
        appropriate mechanized format for testing to ensure that the bills can
        be processed and that the bills comply with the requirements of this
        Attachment. PACIFIC shall also provide to CLEC's Company Manager,
        located at 500 North Point Parkway, FLOC B1104B, Alpharetta, Georgia
        30302, the PACIFIC's originating or state level company code so that it
        may be added to CLEC's internal tables at least thirty (30) calendar
        days prior to testing or a change in the PACIFIC's originating or state
        level company code. CLEC will notify PACIFIC within the time period
        agreed to by the parties if Connectivity Billing transmission fails to
        meet CLEC's testing specifications. PACIFIC shall make the necessary
        corrections within the time period agreed to with CLEC to ensure that
        billing transmissions meet CLEC's testing specifications. PACIFIC shall
        not send CLEC a mechanized Connectivity Bill (except for testing) until
        such bills meet CLEC's testing specifications. If PACIFIC meets CLEC's
        testing specifications, PACIFIC may begin sending CLEC mechanized
        Connectivity Bills on the next Bill Date, or within ten (10) days,
        whichever is later.

10.3    During the testing period, PACIFIC shall transmit to CLEC Connectivity 
        Billing data and information via paper transmission. Test tapes shall be
        sent to CLEC at the following location:

        ------------------------------------------------
        Test Tapes:     CRL Network Services
                        Jim Couch, President
                        One Kearny Street, Suite 1450
                        San Francisco, CA  94108
        ------------------------------------------------

11.     BILL ACCURACY CERTIFICATION

        The Parties agree that in order to ensure the proper performance and 
        integrity of the entire Connectivity Billing process, the sending Party
        is responsible and accountable for transmitting to the receiving Party
        an accurate and current bill. PACIFIC agrees to implement control
        mechanisms and procedures to render a bill that accurately reflects the
        Network Elements, Combination and Local Services ordered and used by
        CLEC. These processes and methodology will be set forth in a Pre-Bill
        Certification Operating Agreement and will be attached to this
        Attachment 13 as Appendix B.


<PAGE>   218

                                                                   Attachment 13
                                                                         Page 12

12.  ADDITIONAL REQUIREMENTS

     PACIFIC agrees that if it transmits data to CLEC in a mechanized format, 
     PACIFIC will also comply with the following specifications which are not 
     contained in CABS guidelines but which are necessary for CLEC to process 
     Connectivity Billing information and data:
          o The BAN shall not contain embedded spaces or low values.
          o The Bill Date shall not contain spaces or non-numeric values.
          o Each Connectivity Bill must contain at least one detail record.
          o Any "From" Date should be less than the associated "Thru" Date and 
            neither date can contain spaces.
          o The Invoice Number must not have embedded spaces or low values.

13.  PAYMENT OF CHARGES

13.1 Subject to the terms of this Agreement and except for bills rendered by 
     PACIFIC in the CRIS format, CLEC and PACIFIC will pay each other within 
     thirty (30) calendar days from the Bill Date, or twenty (20) calendar days 
     from the receipt of the bill, whichever is later. For bills rendered by 
     PACIFIC in the CRIS format, CLEC will pay PACIFIC within sixty (60) 
     calendar days from the Bill Date, or fifty (50) calendar days from the 
     receipt of the bill, whichever is later. If the payment due date is a 
     Sunday or is a Monday that has been designated a bank holiday by the Chase 
     Manhattan Bank of New York (or such other bank as CLEC specifies), payment 
     will be made the next business day. If the payment due date is a Saturday
     or is on a Tuesday, Wednesday, Thursday or Friday that has been designated
     a bank holiday by the bank as CLEC specifies), payment will be made on the 
     preceding business day.

13.2 Payments shall be made is U.S. Dollars via electronic funds transfer 
     ("EFT") to the other Party's bank account. At least thirty (30) days prior 
     to the first transmission of Connectivity Billing data and information for 
     payment, PACIFIC and CLEC shall provide each other the name and address of 
     its bank, its account and routing number and to who Connectivity Billing 
     payments should be made payable. If such banking information changes, 
     each Party shall provide the other Party at least sixty (60) days written 
     notice of the change and such notice shall include the new banking 
     information. The Parties will render payment via EFT. CLEC will provide 
     PACIFIC with one address to which such payments shall be rendered and 
     PACIFIC will provide to CLEC with only one address to which such payments 
     shall be rendered. In the event CLEC receives multiple Connectivity Bills 
     from PACIFIC which are payable on the same date, CLEC may remit one 
     payment for the sum of all Connectivity Bills payable to PACIFIC's bank 
     account specified in this subsection. Each Party shall provide the other 
     Party with a contact person for the handling of Connectivity Billing 
     payment questions or problems.


<PAGE>   219
                                                                   Attachment 13
                                                                         Page 13

14.       BILLING DISPUTES

14.1      Each Party agrees to notify the other Party upon the discovery of a 
          billing dispute. In the event of a billing dispute, the Parties will 
          endeavor to resolve the dispute within sixty (60) calendar days of 
          the Bill Date on which such disputed charges appear. Resolution of 
          the dispute is expected to occur at the first level of management 
          resulting in a recommendation for settlement of the dispute and 
          closure of a specific billing period. Bill closure procedures agreed 
          to by the Parties will be set forth in the Pre-bill Certification 
          Operating Agreement, to be attached to this Attachment as Exhibit A. 
          Closure of a specific billing period will occur by joint agreement of 
          the Parties whereby the Parties agree that such billing period is 
          closed to any further analysis and financial transactions, except 
          those resulting from an Audit as described in Section 10 of the 
          General Section of this Agreement. Closure will take place within 
          three (3) months of the close of the applicable billing period. The 
          month being closed represents those Connectivity Charges that were 
          billed or should have been billed by the respective Bill Date. If the 
          issues are not resolved within the allotted time frame, the following 
          resolution procedure will begin:

14.1.1    If the dispute is not resolved within sixty (60) days of the Bill 
          Date, the dispute will be escalated to the second level of management 
          for each of the respective Parties for resolution.

14.1.2    If the dispute is not resolved within ninety (90) days of the Bill 
          Date, the dispute will be escalated to the third level of management 
          for each of the respective Parties for resolution.

14.1.3    If the dispute is not resolved within one hundred and twenty (120) 
          days of the Bill Date, the dispute will be escalated to the fourth 
          level of management for each of the respective Parties for resolution.

14.1.4    If the dispute is not resolved within one hundred and twenty (150) 
          days of the Bill Date, the dispute will be resolved in accordance 
          with the alternative dispute resolution procedures set forth in 
          Attachment 3.

14.1.5    If a Party disputes a Connectivity Charge and does not pay such 
          charge by the payment due date, such charges shall be subject to late 
          payment charges as set forth in the Late Payment Charges provision of 
          this Attachment. If a Party disputes Connectivity Charges and the 
          dispute is resolved in favor of such Party, the other Party shall 
          credit the Connectivity Bill of the disputing Party for the amount of 
          the disputed charges along with any late payment charges assessed no 
          later than the second Bill Date after the resolution of the dispute. 
          Accordingly, if a Party disputes Connectivity Charges and the dispute 
          is resolved in favor of the other Party, the disputing Party shall 
          pay the other Party the amount of the disputed charges and any 
          associated late payment charges assessed no later than the second 
          bill payment due date after the 
<PAGE>   220
                                                                   Attachment 13
                                                                         Page 14

        resolution of the dispute. In no event, however, shall any late payment
        charges be assessed on any previously assessed late payment charges.

15.     LATE PAYMENT CHARGES

        If either Party fails to remit payment for any Connectivity Charges
        described in this Attachment by the payment due date, or if a payment or
        any portion of a payment is received by either Party after the payment
        due date, or if a payment or any portion of a payment is received in
        funds which are not immediately available to the other Party, then a
        late payment penalty shall be assessed. The late payment charge shall be
        calculated based on the applicable tariffs of the billing Party, and the
        portion of the payment not received by the payment date times the
        highest interest rate (in decimal value) which may be levied by law for
        commercial transactions, compounded daily for the number of days from
        the payment date to and including the date that payment is actually
        made. In no event, however, shall interest be assessed on any previously
        assessed late payment charges.

16.     ADJUSTMENTS

16.1    Subject to the terms of this Attachment and Attachment 17, PACIFIC will
        debit or credit CLEC for incorrect Connectivity Billing charges;
        overcharges: Local Services Elements, or any Combination thereof,
        ordered or requested but not delivered; interrupted Local Services
        associated with any Element, or combination thereof; ordered or
        requested Local Services, Elements, or Combination thereof, of poor
        quality; and installation problems if caused by PACIFIC, adjustments
        will be administered per the applicable tariff or by mutual agreement.
        Such reimbursements shall be identified as an adjustment on the
        Connectivity Bill.

16.2    Subject to the terms of this Attachment, CLEC will debit or credit
        PACIFIC for incorrect charges; overcharges; under charges for mutual
        compensation as required or permitted by the applicable tariff or by
        mutual agreement. Such reimbursements shall be identified as such on the
        Bill.

17.     RECORDING OF CALL INFORMATION

17.1    The Parties agree to record call information in accordance with this
        subsection. These records shall be provided at a Party's request and
        shall be formatted pursuant to Bellcore standards if such standards
        exist, and otherwise as agreed by the Parties. These records shall be
        transmitted to the other Party daily in EMR format via Connect: Direct,
        provided however that if CLEC and PACIFIC do not have Connect: Direct
        capabilities, such records shall be transmitted as the Parties agree.
        PACIFIC and CLEC agree that they 
<PAGE>   221
                                                                   Attachment 13
                                                                         Page 15

      will retain, at each Party's sole expense, copies of all AMA records 
      transmitted to the other party for at least seven (7) calendar days after 
      transmission to the other Party.

17.2  Pacific shall provide to CLEC the Switched Access Detail Usage Data 
      (Category 11-00-xx records) via Connect:Direct on a daily basis within 
      fourteen (14) days of the last day of the billing period. The data will 
      be in a separate dataset from the usage records associated with the CLEC 
      Resale access lines. File name and attributes will be specified by CLEC.

17.3  CLEC shall provide to Pacific the Summary Usage Data (Category 11-50-xx 
      records) via Connect:Direct on a daily basis within fourteen (14) days of 
      the last day of the billing period. The data will be in a separate 
      dataset from the usage records associated with the CLEC Resale access 
      lines. File name and attributes to be specified by Pacific.
<PAGE>   222
                                                                   Attachment 13
                                                                   Appendix A



                                   APPENDIX A

               PHYSICAL CHARACTERISTICS OF DATA TAPES/CARTRIDGES

     Data transported to CLEC by PACIFIC, or to PACIFIC by CLEC, on tape or
   cartridge via a courier will have the following physical characteristics:

<TABLE>
<S>                               <C>
Tape:                             9-track, 6250 (or 1600) BPI (Bytes per inch)

Cartridge:                        38,000 BPI (Bytes per inch)

LRECL:                            2,472 bytes

Parity:                           Odd

Character Set:                    Extended Binary Coded Decimal
                                  Interchange Code (EBCDIC)

External labels:                  Exchange Carrier name, Dataset Name
                                  (DSN) and volume serial number

Internal labels:                  IBM Industry OS labels will be used. They
                                  consist of a single volume label and two sets
                                  of header and trailer labels.

One file per sending              104 bytes EMR compacted format plus
location with variable            modules as applicable.
length records
</TABLE>

<PAGE>   223

                                  ATTACHMENT 14

                        PROVISION OF CUSTOMER USAGE DATA



<PAGE>   224

                                                                   Attachment 14
                                                                          Page 1



                        PROVISION OF CUSTOMER USAGE DATA

1.         INTRODUCTION

1.1        This Attachment sets forth the terms and conditions for PACIFIC's
           provision of recorded usage data to CLEC. PACIFIC will record and
           provide to CLEC unrated usage data when CLEC purchases Unbundled
           Switching Elements or Local Service from PACIFIC ("Recorded Usage
           Data").

2.         GENERAL REQUIREMENTS FOR RECORDED USAGE DATA

2.1        PACIFIC shall provide CLEC with Recorded Usage Data. PACIFIC will
           conform to the format, generic contents, and transmission medium for
           providing Recorded Usage Data as specified in the Bellcore EMR
           standard (Bellcore Practice BR010-200-010), as modified in Appendix I
           to this Attachment 14, which shall be updated periodically by mutual
           agreement.

2.2        PACIFIC's provision of Recorded Usage Data to CLEC shall be in
           accordance with the performance standards set forth in Attachment 17.
           Remedies for failure to meet such performance standards are also set
           forth in Attachment 17.

2.3        PACIFIC shall retain Recorded Usage Data in accordance with
           applicable law and regulation.

3.         USAGE DATA SPECIFICATIONS

3.1        Subject to Section 3.4, when CLEC purchases from PACIFIC Local
           Service or LSNE, PACIFIC will provide to CLEC all Recorded Usage Data
           relating to local and IntraLATA toll calls originating from CLEC
           Customers (business and residence), including, but not limited to,
           the categories of information listed below. In addition, subject to
           Section 3.4, when CLEC purchases from PACIFIC LSNE, PACIFIC will
           provide to CLEC all Recorded Usage Data relating to switched access
           calls terminating to CLEC Customers (business and residence),
           including, but not limited to, the categories of information listed
           below.

3.1.1      Data to be supplied both for calls originating from CLEC customers
           (business and residence) and for switched access calls terminating to
           CLEC customers (business and residence)

3.1.1.1    All available call attempt data

3.1.1.2    Completed Calls

3.1.2      Data to be supplied for calls originating from CLEC Customers
           (Business and Residence)
<PAGE>   225
                                                                   Attachment 14
                                                                          Page 2


3.1.2.1    Use Of Class/Lass/Custom Features which are sold on a pay per use
           basis

3.1.2.2    MTS portion of IntraLATA 976 Calls To Information Providers Reached
           Via PACIFIC Facilities And Contracted By PACIFIC

3.1.2.3    Calls To Directory Assistance Where PACIFIC Provides Such Service To
           CLEC's Local Service Customer

3.1.2.4    Calls Completed Via PACIFIC-Provided Operator Services Where PACIFIC
           Provides Such Service To CLEC's Local Service Customer

3.1.2.5    For PACIFIC-Provided Centrex Service, Station Level Detail

3.1.3      Data to be supplied for switched access calls terminating to CLEC
           Customers

3.1.3.1    Data identifying the CIC of the originating IEC; and

3.1.3.2    Where available, data identifying the calling party number.

3.2        Records Shall Include Complete Call Detail And Complete Timing
           Information.

3.3        PACIFIC shall provide to CLEC Recorded Usage Data for CLEC's
           customers only. PACIFIC will not submit other carriers' local usage
           data as part of the CLEC Recorded Usage Data. Error procedures set
           forth in Appendix I to this Attachment, Section IV, paragraph 1.1.4.
           shall apply to any data of other carriers sent in error to CLEC.

3.4        Additional Provisions Regarding Call Detail

3.4.1      Local Service

3.4.1.1    PACIFIC represents and warrants that as of the effective date of this
           Agreement it does not record local usage for its own flat rate
           customers in the ordinary course of business. There are certain
           exceptions where special study or call detail analysis is performed,
           e.g., in cases where an incident of telephone harassment is under
           investigation. If PACIFIC begins recording local usage for its own
           flat rate customers in the ordinary course of business at a future
           date, PACIFIC will simultaneously begin such recording for CLEC
           resold flat rate customers, at no additional charge. If at a future
           date PACIFIC begins recording local usage for its own flat rate
           customers served by a particular switch, PACIFIC will simultaneously
           begin such recording for CLEC resold flat rate customers served by
           that switch, at no additional charge.

3.4.1.2    If CLEC asks PACIFIC to develop the capability to provide CLEC local
           usage data on resold flat local service, and PACIFIC does not record
           local usage for its own flat rate customers in the ordinary course of
           business, PACIFIC shall develop such



                                       2
<PAGE>   226
                                                                   Attachment 14
                                                                          Page 3


           capability consistent with Sec. 1.6 of Attachment 6. In such event,
           PACIFIC shall be entitled to track and recover applicable development
           costs as set forth in Attachment 8.

3.4.1.3    As of the effective date of this Agreement, in some PACIFIC switches,
           the terminating number for measured local calls may not be recorded
           during periods of high volume usage. For all such calls, PACIFIC will
           inform CLEC of the minutes of use. If and when the limitation
           described in this Section is removed, PACIFIC will provide to CLEC at
           no additional cost, the terminating number for all measured local
           calls, including calls made during periods of high volume usage.

3.4.2      LSNE

3.4.2.1    When CLEC purchases a LSNE from PACIFIC, that LSNE as provided by
           PACIFIC will include all the functions and capabilities of the switch
           and the software deployed at that time within the switch relating to
           recording of usage data, including the capability to record all local
           usage and the terminating number. The charge, if any, for the
           recording of usage data shall be included in the charge for the LSNE
           set forth in Attachment 8.

4.         RECORDED USAGE DATA FORMAT

4.1        PACIFIC will provide Recorded Usage Data in the EMR format and by
           category, group and record type, as specified in the CLEC Customer
           Usage Data Transfer Requirements, November 1996 ("Data
           Requirements"), which is attached hereto and incorporated herein as
           Appendix I.

4.2        PACIFIC shall include the Working Telephone Number (WTN) of the call
           originator on each EMR call record.

4.3        End user customer usage records and station level detail records
           shall be in packs in accordance with EMR standards.

4.4        PACIFIC shall append the recording point identification to each EMR
           call record the recording point identification or other mutually
           agreed upon code that specifically designates the recording switch.

5.         RECORDED USAGE DATA REPORTING REQUIREMENTS

5.1        PACIFIC shall segregate and organize the Recorded Usage Data in a
           format mutually agreed by the Parties.

5.2        PACIFIC shall provide segregated Recorded Usage Data to multiple CLEC
           biller locations as mutually agreed by the Parties.



                                       3
<PAGE>   227
                                                                   Attachment 14
                                                                          Page 4


5.3        PACIFIC, at no cost to CLEC, shall transmit to CLEC Recorded Usage
           Data in Bellcore EMR format, as modified by Appendix I to this
           Attachment, via CONNECT: Direct. If CLEC requests Recorded Usage Data
           in a format customized for CLEC, PACIFIC may charge CLEC pursuant to
           Attachment 8.

5.4        CLEC will test and certify the CONNECT: Direct interface to ensure
           the accurate receipt of Recorded Usage Data. PACIFIC shall make any
           changes necessary in the CONNECT: Direct interface to meet the
           requirements of this Attachment.

5.5        PACIFIC shall provide Recorded Usage Data to CLEC once a day Monday
           through Friday, excluding mutually designated holidays. PACIFIC shall
           provide to CLEC the Recorded Usage Data for a Local Service within
           the time period specified in Attachment 17 to this Agreement.

5.6        Each Party will establish a single point of contact to respond to
           CLEC call usage, data error, and record transmission inquiries from
           the other Party.

5.7        The Recorded Usage Data EMR format, content, and transmission process
           will be tested by CLEC for compliance with industry standards.

6.         RECORDING FAILURES

6.1        CLEC Recorded Usage Data determined to have been lost, damaged or
           destroyed as a result of an error or omission by PACIFIC in its
           performance of the recording function or due to an aberrant switch
           overload of limited duration and frequency, shall, upon CLEC's
           request, be recovered by PACIFIC at no charge to CLEC. In the event
           the data cannot be recovered by PACIFIC, PACIFIC shall estimate the
           messages and associated revenue, with assistance from CLEC, based
           upon the method described below. This method will be applied on a
           consistent basis, subject to modifications agreed to by PACIFIC and
           CLEC. This estimate will be used by the Parties to determine any
           amounts owed to CLEC. PACIFIC will provide this amount to CLEC via a
           check accompanied by a statement that clearly identifies the purpose
           of the check.

6.1.1      PARTIAL LOSS PACIFIC shall review its daily controls to determine if
           data has been lost. When there has been a partial loss, actual
           message and minute volumes shall be reported, if possible. Where
           actual data are not available, a full day shall be estimated for the
           recording entity, as outlined in Section 6.1.3 following. The amount
           of the partial loss is then determined by subtracting the data
           actually recorded for such day from the estimated total for such day.

6.1.2      COMPLETE LOSS Estimated message and minute volumes for each loss
           consisting of an entire AMA tape or entire data volume due to its
           loss prior to or during processing, loss after receipt, degaussed
           before processing, receipt of a blank or unreadable tape, or lost for
           other causes, shall be reported.



                                       4
<PAGE>   228
                                                                   Attachment 14
                                                                          Page 5



6.1.3      ESTIMATED VOLUMES From message and minute volume reports for the
           entity experiencing the loss, PACIFIC shall secure message/minute
           counts for the four (4) corresponding days of the weeks preceding
           that in which the loss occurred and compute an average of these
           volumes.

6.1.4      NET LOSS CALCULATION The amount due to CLEC will be calculated based
           on the Average Revenue Per Minute (ARPM) minus the average charge per
           minute (ACPM) that CLEC would have paid to PACIFIC, times the
           estimated lost minutes. The parties shall agree upon the appropriate
           ARPM and ACPM to apply.

EXCEPTIONS:

6.1.4.1    If the day of loss is not a holiday but one (1) (or more) of the
           preceding corresponding days is a holiday, use additional preceding
           weeks in order to procure volumes for two (2) non-holidays in the
           previous two (2) weeks that correspond to the day of the week that is
           the day of the loss.

6.1.4.2    If the loss occurs on a weekday that is a holiday (except Christmas),
           PACIFIC shall use volumes from the two (2) preceding Sundays.

6.1.4.3    If the loss occurs on Mother's Day, Christmas or the Monday after
           Thanksgiving, PACIFIC shall use volumes from that day in the
           preceding year.

6.2        CLEC may also request data be provided that has previously been
           successfully provided by PACIFIC to CLEC, provided the request is
           received within forty-five (45) days of original processing. PACIFIC
           reserves the right to bill CLEC for its direct costs of providing
           such data if CLEC makes such a request more than 45 days after
           original processing.

7.         CLEARINGHOUSE PROCEDURES

7.1        The Parties acknowledge that calls will be placed using the local
           service of one Party that will be billable to the customer for local
           service of another Party. In order to ensure that these calls are
           properly accounted for and billed to the appropriate customer, the
           parties have established clearinghouse procedures to accomplish these
           objectives in a separate agreement entitled Data Exchange Agreement
           for the Settlement of CATS messages and non CATS Messages. The
           Parties intend to use best efforts to sign that Agreement by November
           30, 1996.

7.1.1      CLEC shall identify a CMDS host for transmitting and receiving
           in-collect and out-collect local and intralata messages.

7.1.2      In the event CLEC fails to designate a CMDS host, PACIFIC agrees on
           an interim basis, if requested by CLEC, to serve as CLEC's CMDS host
           for out-collect billing subject to the rates, terms and conditions as
           mutually agreed by the Parties.



                                       5
<PAGE>   229

                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 1



                                   APPENDIX I

                                       TO

                                  ATTACHMENT 14

                               CUSTOMER USAGE DATA

                              TRANSFER REQUIREMENTS

                                  NOVEMBER 1996


<PAGE>   230

                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 2

                                TABLE OF CONTENTS

SECTION I - SCOPE

1.         General

1.1        Usage Summary

1.2        Attachment Content

SECTION II - PACIFIC USAGE TO BE PROVISIONED TO CLEC

1.         General

1.1        Usage to be Transferred to CLEC.

           1.1.1     CLEC Usage to be Transferred

1.2        CLEC Usage

SECTION III - PACIFIC TO CLEC USAGE FEED

1.         General

1.1        Detailed EMR Record Edits

1.2        Duplicate Record Checks

1.3        PACIFIC to CLEC Usage Feed

           1.3.1     Usage Data Transport Requirements

           1.3.2     Physical Characteristics

           1.3.3.    Data Delivery Schedules

           1.3.4     Resending Data

           1.3.5     Pack Rejection

           1.3.6     Held Packs and Messages

           1.3.7     Data Content Requirements

           1.3.8     Packing Requirements

           1.3.9     Dataset Naming Convention

<PAGE>   231
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 3


           1.3.10    Control Reports

1.4        Message Validation Reports

           1.4.1     Message Validation Pack Reject Report (A7287)

           1.4.2     Message Validation Pack Accepted Report (A7288)

           1.4.3     Message Validation Detail Error Report (A7289)

           1.4.4     Control Reports - Distribution

SECTION IV - CLEC PROCESSING REQUIREMENTS

1.         General

1.1        CLEC Rating Process

           1.1.1.    Message Rating

           1.1.2.    Application of Taxes/Fees/Surcharges

           1.1.3.    Duplicate Messages

           1.1.4.    Record Edits

                     1.1.4.1       CLEC Record Edits

                     1.1.4.2       PACIFIC Record Edits

           1.1.5.    CLEC to PACIFIC Message Returns

SECTION V - TEST PLANS AND ACTIVITIES

1.         General

1.1        Interface Testing

1.2        Operational Test

1.3        Test File Transport

SECTION VI - POST DEPLOYMENT ACTIVITIES

1.         General

1.1        Control Maintenance and Review



                                       3
<PAGE>   232
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 4


           1.1.1     Periodic Review

           1.1.2     Retention of Records

1.2        PACIFIC Software Changes

1.3        Requested Changes

1.4        CLEC Software Changes

1.5        Post Conversion Test Plan

           1.5.1     PACIFIC System Change Description

           1.5.2     Change Negotiations

           1.5.3     Control Change Analysis

           1.5.4     Verification of Changes

           1.5.5     Introduction of Changes

SECTION VII - APPENDICES

Summary of Appendices

APPENDIX A

PHYSICAL CHARACTERISTICS OF DATA TAPES/CARTRIDGES

APPENDIX B

MESSAGE VALIDATION PACK REJECT REPORT (A7287)

APPENDIX C

MESSAGE VALIDATION PACK ACCEPTED REPORT (A7288)

APPENDIX D

SPECIAL FEATURES STAR SERVICES



                                       4
<PAGE>   233
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 5


                                    SECTION I

                                      SCOPE

1.         GENERAL

This Attachment addresses the transmission by PACIFIC of CLEC usage to CLEC.

1.1        USAGE SUMMARY

           Messages will be transmitted, via a direct feed, to CLEC in standard
EMR format.

           The following is a list of EMR records that CLEC can expect to
receive from PACIFIC:

           Header Record            20-21-01

           Trailer Record           20-21-02

           Detail Records*          01-01-01, 16, 18, 80, 81,

                                    10-01-01, 16 (when available), 18, 31, 32, 
                                    35, 37, 80, 81,

           Credit Records           03-01 -XX

           Rated Credits            41-01-XX

           *Category 01 is usually utilized for Rated Messages; Category 10 is
           utilized for Unrated Messages

           PACIFIC will provide the above list of detail records as part of its
           resale offering. PACIFIC shall make available to CLEC additional
           detail records as additional products are added to PACIFIC's resale
           offer.

           Using the above list as a model, the Parties shall identify by mutual
           agreement what detail records shall be provided by PACIFIC to CLEC in
           connection with the provision of unbundled elements.

           Additional detail records provided by PACIFIC to CLEC in the future,
           whether as part of PACIFIC's resale offering or in connection with
           the provision of unbundled elements, may have identification numbers
           different from those listed above.

           In addition, PACIFIC shall provide a 10-01-18 Specialized Service
           record to support the Special Features Star Services (see Appendix D
           for specific details) if these features are part of PACIFIC's
           offering.



                                       5
<PAGE>   234
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 6



           For detailed information regarding EMR, refer to the current version
           of the BellCore Practice BRO 10-200-010 Appendix.

1.2        ATTACHMENT CONTENT

           This Attachment describes baseline requirements for the transfer of
           PACIFIC recorded, unrated usage to CLEC. Testing requirements and the
           reports needed to ensure data integrity are also included. Additional
           requirements and implementation details may be identified for
           conditions unique to PACIFIC. Modifications and/or exceptions to this
           Attachment must be negotiated and mutually agreed upon by PACIFIC and
           CLEC.



                                       6
<PAGE>   235
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 7



                                   SECTION II

                    RECORDED USAGE TO BE TRANSMITTED TO CLEC

1.         GENERAL

This section addresses the types of usage to be transmitted by PACIFIC to CLEC.

1.1        USAGE TO BE TRANSFERRED TO CLEC

1.1.1      CLEC USAGE TO BE TRANSFERRED

           The following messages recorded by PACIFIC are to be transmitted to
           CLEC. PACIFIC recorded usage is defined as:

           - intraLATA - Local

           - intraLATA-Toll

           NOTE: Rated incollect messages should be transmitted via the direct
           feed and can be intermingled with the unrated messages. No special
           packing is needed.

           PACIFIC is developing a direct return feed. CLEC may return via
           direct return feed, once developed, any of the above mentioned
           messages that cannot be rated and/or billed by CLEC, for reasons
           specified in the returns process. Returned messages will be sent to
           PACIFIC in EMR format. Standard EMR return codes will be utilized.

           File transfer specifications are included within Section III.

1.2        CLEC USAGE

           The Recorded Usage Data in a local resale environment includes all
           intraLATA toll and local usage. PACIFIC will provide CLEC with
           unrated EMR records associated with all intraLATA toll and local
           usage which PACIFIC records on CLEC's behalf.

           Any Category, Group and/or Record types approved in the future for
           PACIFIC will be included if they fall within the definition of this
           local resale phase. PACIFIC will give CLEC one hundred twenty (120)
           days advance notification of PACIFIC's intended implementation of
           additional Category, Group and/or Record types.

           NOTE: PACIFIC messages will be packed using the packing criteria
           outlined in Section VI. PACIFIC shall pack records for rated messages
           and non-rated messages in separate packages. Any request by CLEC for
           packing in a different arrangement (for example, using CLEC's RAO)
           shall be separately negotiated by the parties and shall be at a
           reasonable additional charge to CLEC.



                                       7
<PAGE>   236
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 8



                                   SECTION III

                       PACIFIC TO CLEC USAGE FEED GENERAL

1.         GENERAL

           This section contains the information required for PACIFIC to
           transmit the usage defined in Section II to CLEC. This section
           specifically addresses the dataset requirements and processing.

1.1        DETAILED EMR RECORD EDITS

           CLEC will perform detailed record edits on the unrated and rated
           messages upon receipt from PACIFIC. Messages that fail these edits
           may be returned to PACIFIC with mutually agreed upon return codes
           designated.

1.2        DUPLICATE RECORD CHECKS

           CLEC will perform record checks on the unrated and rated messages to
           validate that duplicate messages are not sent by PACIFIC to CLEC,
           except where valid duplicate messages are applicable, e.g., ISDN
           bonded . PACIFIC shall perform record checks to validate that
           duplicate messages are not sent to CLEC in accordance with CMDS
           standards.

1.3        PACIFIC TO CLEC USAGE FEED

1.3.1      USAGE DATA TRANSPORT REQUIREMENTS

           PACIFIC will provide the transport facility between the PACIFIC
           location and the CLEC location. It is CLEC's intent that usage data
           be transmitted via CONNECT:Direct whenever possible. In the event
           usage transfer cannot be accommodated by CONNECT:Direct because of
           extended (one business day or longer) facility outages, or if
           facilities do not exist, PACIFIC will contract for a courier service
           to transport the data via tape.

           PACIFIC will provide CLEC with contacts, Remote Identifiers (IDs),
           and expected usage data volumes for each sending location.

           CLEC will provide contacts responsible for:

           Receiving usage transmitted by PACIFIC.

           Receiving usage tapes from a courier service in the event of a
           facility outage.

1.3.2      PHYSICAL CHARACTERISTICS



                                       8
<PAGE>   237
                                                                   Attachment 14
                                                                      Appendix I
                                                                          Page 9



           In the event the electronic system for data transmission
           malfunctions, by mutual agreement PACIFIC shall provide the data to
           CLEC on tape or cartridge by courier. Such data will have the
           physical characteristics indicated in Appendix A. CLEC's intent is
           for variable block format (2,476 bytes) with a LRECL of 2472.

1.3.3      DATA DELIVERY SCHEDULES

           Data will be delivered to CLEC by PACIFIC daily (Monday through
           Friday) or as negotiated. CLEC and/or PACIFIC Data Center holidays
           are excluded. PACIFIC and CLEC will exchange schedules of designated
           Data Center holidays.

1.3.4      RESENDING DATA

           CLEC will notify PACIFIC as promptly as possible upon discovery of
           resend requirements if a pack or entire dataset must be replaced due
           to pack rejection, damage in transit, dataset name failure, etc.

1.3.5      PACK REJECTION

           Critical edit failure on the Pack Header or Pack Trailer records will
           result in pack rejection (e.g., detail record count not equal to
           grand total included in the pack trailer). Notification of pack
           rejection will be made by CLEC within one business day of processing.
           Rejected packs will be retransmitted to CLEC by PACIFIC.

1.3.6      HELD PACKS AND MESSAGES

           CLEC and PACIFIC will track pack number to control input based upon
           invoice sequencing criteria. PACIFIC will be notified of sequence
           failures identified by CLEC and resend procedures are to be invoked.

1.3.7      DATA CONTENT REQUIREMENTS

           EMR is the format to be used for usage data provided to CLEC.

1.3.8      PACKING REQUIREMENTS

           A pack shall contain a minimum of one message record or a maximum of
           9,999 message records plus a pack header record and a pack trailer
           record. A file transmission contains a maximum of 99 packs. A dataset
           shall contain a minimum of one pack. PACIFIC will provide CLEC one
           dataset per sending location with the agreed upon OCN populated in
           the Header and Trailer records.

           Within the Header and Trailer records, the FROM RAO identifies the
           location that will be sending usage to CLEC. PACIFIC will populate
           the FROM RAO field with the



                                       9
<PAGE>   238
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 10


           unique numeric value identifying the location that is sending the
           data to CLEC. Also, Pack Header and Trailer will have the OCN
           appropriately populated.

           The FROM RAO, OCN, and Remote Identifiers will be used by CLEC to
           control invoice sequencing and each will have its own invoice
           controls. The FROM RAO will also be used to determine where the
           message returns file, containing any misdirected and unguidable
           usage, will be sent.

           The file's Record Format (RECFM) will be Variable Block (VB) Size
           2,476 and the Logical Record Length (LRECL) will be 2,472 bytes.

           CLEC has no special sort requirements for the packs sent by PACIFIC.

1.3.9      DATASET NAMING CONVENTION

           PACIFIC will transmit the usage to CLEC using the following dataset
           naming conventions. The dataset name (DSN) will be partitioned into
           five nodes, separated by periods as follows:

           NODE 1BB03PXNN*

           NODE 2.IBMUP

           NODE 3 (To be determined during negotiations)

           NODE 4.USAGE

           NODE 5.GNNNNVNN* (Generational Dataset to be incremented by sender).

           *The italicized "N" represents numeric fields determined during
           negotiations.

1.3.10     CONTROL REPORTS

           CLEC accepts input data provided by PACIFIC in EMR format in
           accordance with the requirements and specifications detailed in this
           section of the Attachment. In order to ensure the overall integrity
           of the usage being transmitted from PACIFIC to CLEC, data transfer
           control reports will be required. These reports shall be provided by
           CLEC to PACIFIC on a daily or otherwise negotiated basis and reflect
           the results of the processing for each pack transmitted by PACIFIC.

1.4        MESSAGE VALIDATION REPORTS

           CLEC will provide the following three daily (or otherwise negotiated)
           Message Validation reports to the designated PACIFIC System Control
           Coordinator. These reports will be provided for all data received
           within PACIFIC Local Resale Feed and will 



                                       10
<PAGE>   239
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 11


           be transmitted Monday through Friday whether or not there have been
           any files transmitted.

1.4.1      MESSAGE VALIDATION PACK REJECT REPORT (A7287)

           This report provides information on packs rejected by CLEC. It lists
           the header and trailer record of each rejected pack and indicates the
           error codes and the associated error message which explains why the
           pack was rejected.

           An example of the report and a list of Valid Error Codes and
           associated error messages are provided in Appendix B.

1.4.2      MESSAGE VALIDATION PACK ACCEPTED REPORT (A7288)

           This report provides vital statistics and control totals by Record
           ID, Type of Service, Message Counts and Record Counts, for all valid,
           rejected and dropped messages. The information is provided in the
           following report formats and control levels:

           1.        PACIFIC Total Messages

           2.        PACIFIC Total Records

           3.        RAO Total Messages

           4.        RAO Total Records

           5.        Pack Total (Record Counts and Message Counts)

           The first four report formats include percentages that indicate the
           relationship of the daily input volume by Record ID and Type of
           Record to the total input volume provided by an RAO and PACIFIC.

           An example of the report is provided in Appendix C.

1.4.3      MESSAGE VALIDATION DETAIL ERROR REPORT (A7289)

           An EMR detailed error report is generated for each pack/ invoice that
           is received and processed by CLEC. The report lists, in vertical
           format, the complete 175 byte EMR record that has failed to pass the
           initial edit criteria. It prints this detailed information only for
           the first five EMR records that share a common error condition. The
           error condition is flagged on the report by one of two possible error
           codes preceding the field value. The error codes are:

                     (C)       DENOTES CRITICAL ERRORS

                     (I)       DENOTES INFORMATION ERRORS



                                       11
<PAGE>   240
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 12



           The last two pages of the report for a given pack/invoice provide the
           following control totals:

           Total Errors for each Field

           Total Records Received

           Total Records Dropped

           Total Records rejected to MIU

           Pack Reject Rate

           Total Default Count (represents the number of Files on all of the
           input records that had to be programmatically altered to meet the EMR
           standards and specifications.)

           If the entire pack/invoice has been rejected because of a Critical
           Error Rate greater than 0.5%, the last page of the report will
           display such a statement enclosed in asterisks.

           CLEC has provided PACIFIC a sample of this report.

1.4.4      CONTROL REPORTS - DISTRIBUTION

           Since PACIFIC is not receiving control reports, dataset names will be
established during detailed negotiations.



                                       12
<PAGE>   241
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 13


                                   SECTION IV

                      CLEC PROCESSING REQUIREMENTS GENERAL

1.         GENERAL

           This section contains requirements for CLEC processing of Recorded
           Usage Data that has been transmitted to CLEC for billing.

1.1        CLEC RATING PROCESS

1.1.1      MESSAGE RATING

           CLEC will rate any individual messages (as defined in Section II),
           that have not already been rated by PACIFIC (information provider
           messages will be rated by PACIFIC), prior to transmitting the usage
           to a billing environment within CLEC.

1.1.2      APPLICATION OF TAXES/FEES/SURCHARGES

           CLEC will apply taxes, fees and surcharges as appropriate for the
           individual messages and/or customer accounts. The application of all
           taxes, fees and surcharges will be applied on all intralata local and
           toll usage received from PACIFIC.

1.1.3      DUPLICATE MESSAGES

           CLEC has existing duplicate checks as part of their message
           processing or billing functions. CLEC will perform these checks on
           the rated/unrated messages sent by PACIFIC duplicate message
           disposition procedures and reports will be identified by CLEC during
           negotiations.

1.1.4      RECORD EDITS

1.1.4.1    CLEC RECORD EDITS

           CLEC will perform detailed record edits on the rated and unrated
           messages prior to transmitting them to the billing environment. Rated
           & unrated records that do not pass CLEC edits will be returned to
           PACIFIC with thirty (30) days of the file date.

1.1.4.2    PACIFIC RECORD EDITS

           If PACIFIC has existing detailed record edits for rated and unrated
           messages, PACIFIC is to perform these edits.



                                       13
<PAGE>   242
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 14


           Rated and unrated records that do not pass CLEC edits will be
           returned to PACIFIC. PACIFIC will attempt to perform error correction
           on all records requiring such action as agreed upon through the
           detailed negotiations process.

1.1.5      CLEC TO PACIFIC MESSAGE RETURNS

           At the discretion of CLEC, messages that have been sent to CLEC by
           PACIFIC that cannot be guided to an CLEC billed account or error in
           processing due to an error by PACIFIC will be returned to PACIFIC
           with the appropriate negotiated return codes.



                                       14
<PAGE>   243
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 15


                                    SECTION V

                        TEST PLANS AND ACTIVITIES GENERAL

1.         GENERAL

           This section defines the PACIFIC and CLEC activities which are
           required prior to implementation. The tests and activities described
           are necessary to ensure a smooth, accurate and well-programmed
           conversion. Specific test dates will be identified through the
           negotiations process.

1.1        INTERFACE TESTING

           The purpose of this test is to ensure that the usage described in
           Section II can be sent by PACIFIC to CLEC and can be accepted and
           processed by CLEC. PACIFIC will provide a test file to CLEC's
           designated Regional Processing Center (RPC) in the format that will
           be used for live day-to-day processing. The file will contain one
           full day's production usage. The format of the file will conform to
           the requirements shown in Section III. CLEC will review the file and
           verify that it conforms to its data center requirements. CLEC will
           notify PACIFIC in writing whether the format is acceptable. CLEC will
           also provide PACIFIC with the agreed-upon control reports as part of
           this test.

1.2        OPERATIONAL TEST

           The purpose of this test is to ensure that volumes of usage in
           consecutive sequence can be extracted, distributed, and processed by
           PACIFIC and CLEC.

           PACIFIC is required to provide CLEC with PACIFIC recorded, unrated
           intraLATA local and toll usage (as defined in Section II) for a
           minimum of five (5) consecutive days. CLEC will provide PACIFIC with
           the message validation reports associated with test usage.

           CLEC will rate and process the unrated intraLATA toll and local
           usage. CLEC will process this data to test bills. CLEC may request
           that the test usage contain specific usage volumes and
           characteristics to ensure a complete test. Specific usage volumes and
           characteristics will be discussed during detailed negotiations.

1.3        TEST FILE TRANSPORT

           Test data should be transported via CONNECT:Direct whenever possible.
           In the event that courier service must be used to transport test
           media the physical tape characteristics to be used are described in
           Appendix A.



                                       15
<PAGE>   244
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 16


                                   SECTION VI

                           POST DEPLOYMENT ACTIVITIES

1.         GENERAL

           Requirements for ongoing maintenance of the usage feeds between CLEC
           and PACIFIC are described in this section. Included am minimal
           requirements for day to day control of the regularly scheduled
           transfer of PACIFIC unrated and rated usage data and procedures for
           introducing and verifying CLEC/PACIFIC System Changes.

1.1        CONTROL MAINTENANCE AND REVIEW

1.1.1      PERIODIC REVIEW

           Control procedures for all usage transferred between PACIFIC and CLEC
           will require periodic review. This review may be included as part of
           an annual audit of PACIFIC by CLEC or as part of the normal
           production interface management function. Breakdowns which impact the
           flow of usage between PACIFIC and CLEC must be identified and jointly
           resolved as they occur. The resolution may include changes to control
           procedures, as similar problems would be avoided in the future. Any
           changes to control procedures would need to be mutually agreed upon
           by CLEC and PACIFIC.

1.1.2      RETENTION OF RECORDS

           PACIFIC shall maintain a machine readable back-up copy of the message
           detail provided to CLEC for a minimum of forty-five (45) calendar
           days. CLEC will maintain the message detail received from PACIFIC for
           a minimum period of forty-five (45) calendar days. Designated CLEC
           personnel will provide these records to PACIFIC or its authorized
           agents upon written request. PACIFIC will also provide any data back
           to CLEC upon their written request.

1.2        PACIFIC SOFTWARE CHANGES

           When PACIFIC plans to introduce any software changes which impact the
           format or content structure of the usage data feed to CLEC,
           designated PACIFIC personnel shall notify CLEC of such changes within
           any time period specified by the FCC or CPUC for that purpose, and in
           any event will use reasonable best efforts to notify CLEC no less
           than one hundred twenty (120) calendar days before such changes are
           Implemented.

           PACIFIC will communicate the projected changes to the appropriate
           groups in CLEC so that potential impacts on CLEC processing can be
           determined.

           CLEC personnel will review the impact of the change or the entire
           control structure as described in Section 1.5, Post Conversion Test
           Plan. CLEC will negotiate any perceived 



                                       16
<PAGE>   245
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 17


           problems with PACIFIC and will arrange to have the data tested
           utilizing the modified software.

           If it is necessary for PACIFIC to request changes in the schedule,
           content or format of usage data transmitted to CLEC, PACIFIC will
           notify CLEC.

1.3        REQUESTED CHANGES

           If it is necessary for either Party to request changes in the
           schedule, content, or format of the usage data transmitted from
           PACIFIC, the requesting Party will notify the other Party and the
           terms and conditions of the change shall be mutually agreed upon
           pursuant to the process set forth in Section 1.5.2. When the
           negotiated changes are to be implemented, CLEC and/or PACIFIC will
           arrange for testing of the modified data as described in Section 1.5,
           Post Conversion Test Plan.

1.4        CLEC SOFTWARE CHANGES

           When CLEC plans to introduce any software changes which may impact
           the format or content structure of the usage data transmitted from
           PACIFIC, CLEC will use reasonable best efforts to notify the
           designated PACIFIC personnel, no less than one hundred twenty (120)
           calendar days before such changes are implemented.

           The CLEC contact will communicate the projected changes to the
           appropriate groups in PACIFIC so that potential impacts on PACIFIC
           processing can be determined.

           CLEC will negotiate any perceived problems with PACIFIC and will
           arrange to have the data tested utilizing the modified software.

           Altering the one hundred twenty (120) day window for introducing
           software changes can be negotiated by both companies, dependent upon
           the scope and impact of the change.

1.5        POST-CONVERSION TEST PLAN

           The test plan described below is designed to encompass all types of
           changes to the usage data transferred by PACIFIC to CLEC and the
           methods of transmission for that data.

1.5.1      PACIFIC SYSTEM CHANGE DESCRIPTION

           For a PACIFIC system change that would be reasonably likely to impact
           CLEC, PACIFIC shall provide CLEC with an overall description of the
           change, stating the objective and a brief explanation of the reasons
           for the change.

           During the initial negotiations regarding the change, PACIFIC shall
           provide a list of the specific records and/or systems impacted by the
           change to designated CLEC personnel.



                                       17
<PAGE>   246
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 18


           Finally, PACIFIC shall also provide CLEC a detailed description of
           the changes to be implemented. It shall include sufficient detail for
           designated CLEC personnel to analyze and estimate the effects of the
           changes and to design tests to verify the accuracy of the
           implementation.

1.5.2      CHANGE NEGOTIATIONS

           PACIFIC will notify CLEC in writing of all proposed change
           negotiations initiated by PACIFIC. In turn, CLEC will notify PACIFIC
           in writing of proposed change negotiations initiated by CLEC.

           After formal notification of planned changes, whether originated by
           PACIFIC or CLEC, negotiation meetings shall be scheduled between
           designated CLEC and PACIFIC personnel. The first meeting should
           produce the overall change description (if not previously furnished)
           and the list of records and/or systems affected.

           In subsequent meetings, the Parties shall jointly develop a detailed
           description of changes to be implemented and a detailed test
           procedure.

1.5.3      CONTROL CHANGE ANALYSIS

           Based on the detailed description of the changes and review thereof
           by the parties in negotiation meetings, designated CLEC personnel
           will:

1.5.3.1    Determine the impact of the changes on the overall structure.

1.5.3.2    Determine whether any single change has a potential control impact
           (i.e., High error rate on individual records that might result in
           pack rejection).

1.5.3.3    Determine whether any controls might be adversely affected.

1.5.3.4    Arrange for appropriate control structure changes to meet any of the
           above conditions.

1.5.4      VERIFICATION OF CHANGES

           Based on the detailed description of changes and review thereof in
           negotiation meetings, designated CLEC personnel will:

1.5.4.1    Determine the type of change(s) to be implemented.

1.5.4.2    Develop a comprehensive test plan.

1.5.4.3    Negotiate scheduling and transfer of modified data with PACIFIC.

1.5.4.4    Negotiate testing of modified data with the appropriate CLEC Regional
           Processing Center ("RPC").



                                       18
<PAGE>   247
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 19


1.5.4.5    Negotiate processing of verified data through the CLEC billing system
           with the RPC.

1.5.4.6    Arrange for review and verification of testing with appropriate CLEC
           groups.

1.5.4.7    Arrange for review of modified controls, if applicable.

1.5.5      INTRODUCTION OF CHANGES

           When all the testing requirements have been met and the results
           reviewed and accepted, designated CLEC personnel will:

1.5.5.1    Negotiate an implementation schedule.

1.5.5.2    Verify the existence of a contingency plan with the appropriate CLEC
           RPC.

1.5.5.3    Arrange for the follow-up review of changes with appropriate CLEC
           personnel.

1.5.5.4    Arrange for appropriate changes in control program, if applicable.

1.5.4.5    Arrange for long-term functional review of impact of changes on the
           CLEC billing system, i.e., accuracy, timeliness, and completeness.



                                       19
<PAGE>   248
                                                                   Attachment 14
                                                                      Appendix I
                                                                         Page 20


                                   SECTION VII

                                   APPENDICES

SUMMARY OF APPENDICES

APPENDIX A

PHYSICAL CHARACTERISTICS OF DATA TAPES/CARTRIDGES

APPENDIX B

MESSAGE VALIDATION PACK REJECT REPORT (A7287)

APPENDIX C

MESSAGE VALIDATION PACK ACCEPTED REPORT (A7288)

APPENDIX D

SPECIAL FEATURES STAR SERVICES


<PAGE>   249
                                   APPENDIX B

MESSAGE VALIDATION PACK REJECT REPORT (A7287)                           MM/DD/YY
                                                                        HH:MM:SS

                                                           RETEN CODE: 01R-00300

- --------------------------------------------------------------------------------

COMPANY    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX   REMOTE ID 9999X  FROM BSID 999
<TABLE>

HEADER    RECORD ID      DATE CREATED   INVOICE NUMBER      BELL CO ID     BELL RAO  IX CARRIER     IND CO ID
- ------    ---------      ------------   --------------      ----------     --------  ----------     ---------
<S>       <C>            <C>            <C>                 <C>            <C>       <C>            <C>
           999999          99-99-99           99                 99           999       999           9999
</TABLE>

          TOTAL REC.

                                                                        12/12/96
<PAGE>   250
<TABLE>
          RECORD ID
TRAILER     COUNT        DATE CREATED   INVOICE NUMBER      BELL CO ID     BELL RAO  IX CARRIER     IND CO ID
- -------   ---------      ------------   --------------      ----------     --------  ----------     ---------
<S>       <C>            <C>            <C>                 <C>            <C>       <C>            <C>
           999999          99-99-99           99                 99           999       999           9999
           99,999
</TABLE>

<TABLE>
ERRORS    ERROR CODE     ERROR MESSAGE
- ------    ----------     -------------
<S>       <C>            <C>
             EC99.9
</TABLE>
          XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

          XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

<PAGE>   251
                              APPENDIX B (CONT'D)



                 MESSAGE VALIDATION PACK REJECT REPORT (A7287)

<TABLE>

ERROR CODE        ERROR MESSAGES
<S>               <C>

EC01.2            First record after trailer is not a Pack Header.

EC03.2            From RAO is not numeric.

EC04.3            Invoice number on header invalid.

EC04.5            Company ID not numeric.

EC04.6            Independent company ID is not numeric. 

EC04.7            Header Record ID is invalid.

EC04.8            Trailer Record ID is invalid.

EC04.9            Trailer Record ID is invalid.

EC05.0            Duplicate pack.


</TABLE>
<PAGE>   252




<TABLE>

<S>               <C>

EC05.1            Old Pack.

EC05.2            RAO not found on table.

EC07.3            Error rate greater than invoice file threshold for RAO 
                    invoice number.

EC012.0           Remote ID in Dataset is not valid.

EC020.0           No detail records in pack.

EC013.0           Invalid status on Pack Header.

EC027.0           Pack exceeds limit of 9,999 detail records.

EC040.9           Pack Header record is missing.

EC041.0           Trailer record is missing.

EC042.0           Trailer message volume is not equal to
                    accumulated message volume.

EC044.0           Header/Trailer date is invalid.
</TABLE>
<PAGE>   253
<TABLE>
<S>               <C>

EC45.0           From RAO on Trailer Record is not equal to the from RAO
                   on Header Record.

EC48.0           Invoice number on Trailer Record is not equal to the
                   invoice number on the Header Record.
</TABLE>
<PAGE>   254
                                   APPENDIX C

                MESSAGE VALIDATION PACK ACCEPTED REPORT (A7288)

                                        MM/DD/YY-----HH:MM:SS
   
                                        RETEN CODE: 01R-00300
<TABLE>
- --------------------------------------------------------------------------------
<S>        <C>                            <C>         <C>           <C>
COMPANY    XXXXXXXXXXXXXXXXXXXXXXXXXX     FROM RAO    INVOICE NO.   DATE CREATED
     TOTAL RECORDS RECEIVED


- ------------------------------------------999-----------99----------MM/DD/YY----
     --------ZZ.ZZ9



                                                          ----------RECORD
     COUNTS-----------------------MESSAGE COUNTS--------------------------------
     ---

</TABLE>


                                                                       12/12/96
<PAGE>   255
<TABLE>
<CAPTION>

<S>                 <C>
RECORD ID           TYPE OF RECORDVALID-----REJECTED-----DROPPED-----TOTAL-----VALID-----
       REJECTED-----DROPPED-----TOTAL


010102              OUTWATS (NON-SMDR)ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
          ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010103              OUTWATS(SMDR)ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
          ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010104              800 SERVICEZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
          ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

          TOTAL WATS/800


010101              MTS                                               ZZ.ZZ9     ZZ.ZZ9
          ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010106              NON-DIAL CONFER BRIDGEZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
          ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010107              NON-DIAL CONFER LEG RECORDZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
          ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

</TABLE>
<PAGE>   256
<TABLE>
<S>     <C>         <C>         <C>                <C>        <C>        <C>        <C>        <C>
010108                  DIAL CONFERENCE BRIDGE     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010111                  ALLIANCE (AGTC)            ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010116                  DIAL-IT SERVICE            ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010132                  DIRECTORY ASSISTANCE       ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010180                  MARINE/AIRCRAFT            ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010181                  RADIO LINK                 ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010182           MARINE NON-DIAL CONFER BRIDGE     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010183         MARINE NON-DIAL CONFER LEG REC.     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

0101XX                  OTHER MTS RECORDS          ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9
                                                                                              12/12/96
</TABLE>
<PAGE>   257
TOTAL NORTH AMERICAN MTS

<TABLE>
<S>     <C>         <C>         <C>                <C>        <C>        <C>        <C>        <C>
010201                  IOTC/IODD MTS              ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

0102XX                  IOTC/IDDD OTHERS           ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010301                  IOTC BFC MTS               ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

0103XX                  IOTC BFC OTHERS            ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010401                  IOC MTS                    ZZ.ZZZ9    ZZ.ZZZ9    ZZ.ZZZ9    ZZ.ZZ9     ZZ.ZZ9
        ZZ.ZZ9      ZZ.ZZ9      ZZ.ZZZ9

0104XX                  IOC OTHERS                 ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZZ9     ZZ.ZZZ9     ZZ.ZZZ9

010501                  IOC MTS                    ZZ.ZZZ9    ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZ9     ZZ.ZZZ9
        ZZ.ZZ9      ZZ.ZZ9      ZZ.ZZZ9
                                                                                              12/12/96
</TABLE>
<PAGE>   258
<TABLE>
<S>     <C>       <C>       <C>                <C>       <C>      <C>      <C>      <C>     <C>
0105XX                      IOC OTHERSZZ.ZZ9   ZZ.ZZ9    ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

        TOTAL OVERSEAS MTS


015002                      OUTWATS LINE SUMMARYZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

015004                      800 LINE SUMMARYZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

015004                      DIR. ASSISTANCE LINE SUMMARYZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9



03XXXX                      CREDIT REQUESTSZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

51/52                       CANCEL REQUESTSZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

                                                                                           12/12/96
</TABLE>
<PAGE>   259
<TABLE>
<S>     <C>       <C>       <C>                          <C>     <C>      <C>      <C>
71/72                       CORRECTION REQUESTSZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

INVALID RECORD IDENTIFICATION        ZZ.ZZ9                                  ZZ.ZZZ9
        ZZ.ZZZ9   ZZ.ZZZ9

PACK TOTALS                      ZZ.ZZ9   ZZ.ZZ9ZZ.ZZ9   ZZ.ZZ9   ZZ.ZZZ9   ZZ.ZZZ9   ZZ.ZZZ9

                                                                                     12/12/96
</TABLE>
<PAGE>   260


                                                                      Appendix D
                                                                          Page 2

                                   APPENDIX D
                                        
                         SPECIAL FEATURES STAR SERVICES


The following are CLASS subscription or "pay per use" (STAR) Services supported
by these Local Resale requirements to date. When identified, additional services
can be negotiated to be included in this Resale offer.

1) Auto Recall/....................This feature allows a customer to redial a
   Call Return                     number when a Busy signal is encountered.

2) Auto Callback/Repeat Dialing....This feature allows a customer to
                                   automatically return the most recent incoming
                                   call, even if it is not answered.

The following CLASS subscription service is available for Local Resale. CLEC
requires a usage record in order to provide call trace information to law
enforcement authorities.

1) Call Trace......................This feature allows the tracing of
                                   nuisance calls.

The following are CLASS services are only available thru monthly subscription
and are available for Local Resale only on a monthly subscription basis.

1) 3-Way Calling...................This feature allows for three (3) Parties to
                                   communicate on one line.

2) Automatic Redial................This feature allows a customer to
                                   automatically redial the last number dialed.
<PAGE>   261
                                                                          9/4/98

To provide for the transfer and billing of these features the following 
requirements apply:

For the following CLASS subscription and "per use" (STAR) Features the
'Miscellaneous Charge Line Summary Non-Detail Charge' 10-01-18 record should be
used and be populated as follows:
<TABLE>
<CAPTION>
CONNECT TIME                  POSITIONS 55-60               MUST BE POPULATED
- ------------                  ---------------               -----------------
<S>                           <C>                           <C>
TO PLACE/ST.                  POSITIONS 135-146             1) AUTO REDIAL/CALL RETURN
                                                               FEATURE CODE 32, 62, 60

TO PLACE/ST.                  POSITIONS 135-146             2) AUTO CALL BACK/REPEAT DIALING
                                                               POPULATE WITH FEATURE CODE 33, 61, 63

TO PLACE/ST.                  POSITIONS 135-146             3) CALL TRACE
                                                               POPULATE WITH FEATURE CODE 70

TO PLACE/ST.                  POSITIONS 135-146             4) 3-WAY CALLING
                                                               NOT APPLICABLE

TO PLACE/ST.                  POSITIONS 135-146             5) AUTOMATIC REDIAL
                                                               NOT APPLICABLE
</TABLE>


NOTE: For fields not specifically defined, the standard EMR format for a
10-01-08 record should be used.
<PAGE>   262
                                                                      Attachment








                                  ATTACHMENT 15

                 LOCAL NUMBER PORTABILITY AND NUMBER ASSIGNMENT



<PAGE>   263
                                                                   Attachment 15
                                                                          Page 1

                            LOCAL NUMBER PORTABILITY
                              AND NUMBER ASSIGNMENT

1.       PROVISION OF LOCAL NUMBER PORTABILITY

1.1      Each Party shall provide, to the extent technically feasible, service
         provider local Number Portability, subject to the Act, regulations
         thereunder and relevant FCC and Commission decisions. Until permanent
         Number Portability ("PNP") is available, each party shall provide
         Interim Number Portability ("INP"), through RCF and LERG reassignment,
         as described herein, immediately upon notification that CLEC is
         commencing facilities-based local exchange service on CLEC-provided
         facilities. Each Party shall provide INP through Flex DID and/or Route
         Indexing, as described below, no later than one hundred eighty (180)
         days after the effective date of this agreement or immediately upon
         CLEC's notification that it is commencing facilities-based local
         exchange service on CLEC-provided facilities, which ever occurs later.
         Each Party will provide INP with minimum impairment of functionality,
         quality, reliability and convenience to the other Party's subscriber.
         Each Party will provide PNP as soon as it is technically feasible, in
         conformance with FCC rules and the Act.

2.       INTERIM NUMBER PORTABILITY (INP)

2.1      INP shall be provided by Remote Call Forwarding ("RCF"), Flexible
         Direct Inward Dialing ("Flex DID"), Route Indexing ("RI") or Local
         Exchange Routing Guide ("LERG") Reassignment as provided herein. The
         Party that operates the switch to which the number is ported
         ("Ported-to Party") shall specify on a per telephone number or customer
         type basis which method is to be employed, and the Party that operates
         the switch from which the number is ported ("Porting Party") shall
         provide such method to the extent technically feasible. Both Parties
         agree to release ported telephone line numbers which were ported using
         INP methods other than LERG Reassignment, back to the Porting Party
         assigned an NXX in the LERG when the ported telephone line number
         "becomes vacant" (i.e., when the ported number is no longer in service
         for the customer originally assigned the ported number), and any
         applicable referral/intercept period has expired.

2.2      REMOTE CALL FORWARDING (RCF)

2.2.1    When RCF, which PACIFIC refers to as DNCF, is used to provide INP,
         calls to the ported number will first route to the Porting Party's
         switch. The Porting Party's switch will then forward the call to a
         second "shadow" number with an NXX associated with the Ported-to
         Party's switch. If necessary to handle multiple simultaneous calls to
         the same ported telephone number, the Ported-to Party may order up to
         ninety-nine (99) paths for the provisioning of RCF.


<PAGE>   264
                                                                   Attachment 15
                                                                          Page 2

2.2.2    PACIFIC shall provide RCF INP to CLEC pursuant to the terms of
         PACIFIC's DNCF tariff (including any modification subsequently adopted
         by the Commission) filed by PACIFIC.

2.2.3    DNCF and CLEC's equivalent RCF INP service calls will be delivered over
         Local Interconnection Trunk Groups. Each Party's customers will have
         the ability to receive collect calls and bill to third party numbers.
         Call quality will be equivalent to that which other RCF customers
         receive.

2.3      FLEX DID

2.3.1    When Flex DID is used to provide INP, calls to the ported number will
         first route to the Porting Party's switch. The Porting Party's switch
         will then direct calls to the ported number over direct trunks to the
         Ported-to Party's switch. At the option of the Ported-to Party, and
         where technically feasible, Flex DID may be used to port either a block
         of telephone numbers or an individual telephone number, and Flex DID
         may be provisioned to allow a full ten (10) digit telephone number to
         be sent to the Ported-to Party's switch.

2.3.2    Flex DID will be delivered over dedicated truck groups using either MF
         or SS7 signaling, where technically feasible, at the option of the
         Ported-to Party.

2.4      ROUTE INDEXING

2.4.1    Route Indexing (RI) may take two forms: Route Indexing Portability Hub
         (RIPH) or Directory Number Route Index (DN-RI).

2.4.2    DN-RI is a form of RI that requires direct trunking between the Porting
         Party's switch to which the ported number was originally assigned and
         the Ported-to Party's switch to which the number has been ported. The
         Porting Party's switch shall send the originally dialed number to the
         Ported-to Party's switch without the use of steering digits.

2.4.3    RI-PH will be delivered over Local Interconnection Trunk Groups. DN-RI
         will be delivered over dedicated trunks using SS7 signaling

2.4.4    If the tandem switch is not operated by the Porting Party, the Porting
         Party will make whatever process and compensation arrangements with the
         tandem provider that are necessary to implement the steering digits for
         RI-PH.

2.5      LERG REASSIGNMENT

         If a customer has an entire NXX code and transfers from the Porting
         Party to the Ported-to Party, portability for that customer shall be
         provided by utilizing reassignment of the NXX code to the Ported-to
         Party through the Local Exchange Routing Guide (LERG). Updates to
         translations in the Porting Party's switching office to which the
         ported numbers were originally assigned will be made by the Porting
         Party prior to the date on 


<PAGE>   265
                                                                   Attachment 15
                                                                          Page 3

         which LERG changes become effective, in order to redirect calls to the
         Ported-to Party's switch via route indexing.

3.       OTHER INTERIM PORTABILITY PROVISIONS

3.1      With regard to the division of terminating Switched Access revenues
         associated with RCF, Flex DID and RI, the Porting Party shall pay the
         Ported-to Party $1.75 per month for each business line and $1.25 per
         month for each residence line associated with the INP arrangement.
         Determination of the number of lines to which the above payment shall
         apply will be made at the time the INP arrangement is established. The
         payment shall be made based on the total number of lines included in
         the same hunting arrangement as the INP number. Partial months will be
         paid on a prorated basis and such payment shall continue until the INP
         arrangement is disconnected or PNP is made available for the INP
         number, whichever occurs first. Such amount is in consideration of the
         Switched Access compensation and reciprocal compensation that would
         have been received by each Party if PNP had been in effect.

3.2      With RCF, Flex DID with SS7, DN-RI, or RI-PH, each Party shall exchange
         with the other Party, SS7 TCAP messages as required for the
         implementation of Custom Local Area Signaling Services (CLASS) or other
         features available in each Party's network.

3.3      Each Party shall disclose to the other Party any technical or capacity
         limitations that would prevent use of a requested INP implementation in
         a particular switching office. Both Parties shall cooperate in the
         process of porting numbers to minimize customer out-of-service time,
         including updating switch translations where necessary.

3.4      With respect to 911 service associated with ported numbers under INP,
         the Porting Party agrees that all ported directory numbers (DN) will
         remain in the Public Service Answering Points (PSAP) routing databases.
         When RCF INP or other INP methods that use a shadow number are used, it
         is the responsibility of the Ported-to Party to provide both the ported
         numbers and shadow numbers to the Porting Party to be stored in the
         Porting Party's appropriate databases. CLEC will input the ported
         number and the shadow number with CLEC's data via the E 911 Management
         System (MS) Gateway for storage in the MS. The Ported-to Party shall
         have the right to verify the accuracy of the information in the
         appropriate databases. CLEC may verify the accuracy of the information
         in the E 911 MS via the MS Gateway.

4.       PERMANENT NUMBER PORTABILITY (PNP)

4.1      The Parties agree to implement PNP, in compliance with FCC or CPUC
         orders, within and between their networks as soon as technically
         feasible, but no later than the schedule established by the FCC or
         CPUC.

4.2      Each Party shall recover its costs for PNP in accordance with FCC or
         CPUC orders.


<PAGE>   266
                                                                   Attachment 15
                                                                          Page 3

4.3      The Parties agree to comply with such industry guidelines as may be
         established for the treatment of vacant telephone numbers, including
         provisions for number pooling, where available.

4.4      To the extent that a query is performed or required to be performed,
         each Party will make arrangements to perform its own queries for PNP
         calls.

5.       REQUIREMENTS FOR INP AND PNP

5.1      CUT-OVER PROCESS

         The Parties shall cooperate in the process of porting numbers from one
         carrier to another so as to limit service outage for the ported
         subscriber. This may include, but not be limited to, the Porting Party
         promptly updating its network element translations following
         notification by the industry SMS, or ported-to local service provider,
         and deploying such temporary translations as may be required to
         minimize service outage, e.g., unconditional triggers. The Parties
         agree to comply with such industry guidelines as may be established in
         the appropriate subcommittees of the California Local Number
         Portability Task Force for the cut-over process.

5.2      TESTING

         Both Parties shall cooperate in conducting testing to ensure
         interconnectivity between systems. Each Party shall inform the other
         Party of any system updates that may affect the other Party's network
         and each Party shall, at the other Party's request, perform tests to
         validate the operation of the network. Additional testing requirements
         may apply as specified by this Agreement.

5.3      NON-GEOGRAPHICAL NUMBERS

         Neither Party shall be required to provide Number Portability for
         nongeographic services (i.e., 500, 700 and 900 Service Access Codes
         (SACs), and 976 NXX and similar services) under this Agreement.

5.4      ENGINEERING AND MAINTENANCE

         Both Parties will cooperate to ensure that performance of trunking and
         signaling capacity is engineered and managed at levels which are at
         least at parity with that provided by the other Party to its
         subscribers and to ensure effective maintenance testing through
         activities such as routine testing practices, network trouble isolation
         processes and review of operational elements for translations, routing
         and network fault isolation. Additional specific engineering and
         maintenance requirements shall apply as specified in this Agreement.
         For subscribers ported by INP using RCF, Flex DID, or RI, the Ported-to
         Party shall perform appropriate testing to isolate trouble prior to
         referring repair requests to the Porting Party. For subscribers ported
         by PNP, trouble shooting by the Porting Party shall generally involve
         verification that a proper location routing number has been 


<PAGE>   267
                                                                   Attachment 15
                                                                          Page 5

         entered into the system, and other trouble shooting as may be
         established in industry guidelines.

5.5      RECORDING AND BILLING

5.5.1    The Porting Party shall provide the Ported-to Party with accurate
         billing and Customer Account Record Exchange data for the Ported-to
         Party's subscribers whose numbers have been ported.

5.5.2    Calls originated from RCF ported numbers in the Porting Party
         end-offices and sent to the Ported-to Party interLATA toll network must
         signal the shadow number in the Calling Party Number (CgPN) parameter
         and ported number in the Charge Number (CN) parameter in the SS7
         Initial Address Message.

5.6      Treatment of Telephone Line Number Based Calling Cards

5.6.1    PACIFIC shall remove from its Line Information Data Base (LIDB) all
         existing PACIFIC- issued Telephone Line Number (TLN)-based card numbers
         issued to a customer, when that customer ports the associated telephone
         numbers to CLEC

5.6.2    PACIFIC shall continue to allow CLEC access to its LIDB. Other LIDB
         provisions are specified in this Agreement.

6.       ASSIGNMENT OF NXX CODES AND TELEPHONE NUMBERS

6.1      The Parties agree, in principle, that the administration and assignment
         of Central Office Codes ("NXXs") should be moved from PACIFIC to a
         neutral third party. In the interim, where PACIFIC functions as
         California Code Administrator, the following provisions apply:

6.1.1    Each Party will comply with Industry Carriers Compatibility Forum
         ("ICCF") Central Office Code (NXX) Assignment Guidelines, INC
         95-0407-008 ("ICCF Guidelines").

6.1.2    Unless the FCC adopts rules that differ from the ICCF Central Office
         Code Assignment Guidelines, PACIFIC will assign NXX codes to CLEC
         according to those Guidelines in a competitively neutral manner and on
         a basis no less favorable than that on which PACIFIC assigns codes to
         itself. These Number Administrator functions will be provided without
         charge. Number Administrator functions do not include opening NXX
         Codes.

6.1.3    It shall be the responsibility of each Party to program and update its
         own switches and network systems to recognize and route traffic to the
         other Party's assigned NXX codes at all times. Neither PACIFIC nor CLEC
         shall charge each other for changes to switch routing software
         necessitated by the creation, assignment or reassignment or activation
         of NPA or NXX codes, so long as the requirement set forth at page 84 of
         Commission Decision 96-03-020 remains in place.


<PAGE>   268
                                                                   Attachment 15
                                                                          Page 6

6.1.4    The Parties will each be responsible for the electronic input of their
         respective number assignment information into the Routing Database
         System.

6.1.5    The Parties will provide to each other test-line numbers and access to
         test lines, including a test-line number that returns answer
         supervision in each NPA-NXX opened by a Party.

6.1.6    PACIFIC, in its role as the California Code Administrator, will provide
         routine reporting on NXX availability, consistent with the orders of
         the Commission.

6.1.7    The Parties agree that any forecasts required to be submitted prior to
         establishment of an independent third party administrator will be
         considered confidential and proprietary, and will only be made
         available to the California Code Administrator for the purposes of code
         assignment and administration.

6.2      In those circumstances where CLEC assigns its customers telephone
         numbers from an NXX assigned in the LERG to PACIFIC, CLEC shall be able
         to obtain and assign telephone numbers from PACIFIC in the same manner
         that PACIFIC performs these functions for its own customers.

6.2.1    CLEC can request, review, reserve, exchange and return telephone
         numbers for up to five basic exchange or COPT lines or single-line
         ISDN, on an electronic, real-time basis to allow assignment during
         service negotiation with the CLEC's customer. Such access shall be
         provided as described with respect to the Operational Support Services
         ("OSS") functions set forth in Attachment 11.

6.2.2    Number assignments other than those described in Section 6.2.1. above,
         including specialty numbers and complex product assignments, will be
         obtained through a telephone call to the unbranded Number Assignment
         Center (NAC) in the LISC. This NAC is unbranded to allow CLEC to
         include its customer in the call without indication that they are
         interacting with PACIFIC.

6.3      CLEC will be provided with electronic access for additional number
         products as soon as such access is made available by PACIFIC. Such
         access shall be provided as described with respect to other OSS
         functions set forth in Attachment 11.


<PAGE>   269
                                  ATTACHMENT 16

                                    SECURITY


<PAGE>   270
                                                                   Attachment 16
                                                                          Page 1

1.       PROTECTION OF SERVICE AND PROPERTY

1.1.     For the purpose of notice permitted or required by this Attachment,
         each Party shall provide the other Party a SPOC available twenty-four
         (24) hours a day, seven (7) days a week.

1.2.     PACIFIC and CLEC shall each exercise the highest degree of care to
         prevent harm or damage to the other Party, its employees, agents or
         customers, or their property. Each Party, its employees, agents, or
         representatives agree to take reasonable and prudent steps to ensure
         the adequate protection of property and services of the other Party.

1.3.     Each Party having on its premises any equipment, support equipment,
         systems, tools and data of the other Party, or spaces which contain or
         house the other Party's equipment or equipment enclosures, shall
         restrict access thereto to employees and authorized agents of that
         other Party.

1.4.     PACIFIC shall use electronic controls to protect all spaces which house
         or contain CLEC equipment or equipment enclosures, but if electronic
         controls are not available, PACIFIC shall either furnish security
         guards at those PACIFIC locations already protected by security guards
         on a seven (7) day per week, twenty-four (24) hour a day basis; and if
         none, PACIFIC shall permit CLEC to install silent intrusion alarms back
         to manned sites. CLEC agrees that PACIFIC shall be the SPOC with all
         law enforcement authorities or public agencies with respect to problems
         or alarms related to CLEC's equipment or equipment enclosures located
         on PACIFIC's premises. In no event will CLEC contact law enforcement
         authorities or public agencies as a result of a silent alarm.

1.5.     PACIFIC shall furnish to CLEC a current written list of PACIFIC's
         employees who PACIFIC authorizes to enter spaces which house or contain
         CLEC equipment or equipment enclosures, with samples of the identifying
         credentials to be carried by such persons.

1.6.     CLEC shall furnish to PACIFIC a current written list of CLEC's
         employees or agents who CLEC authorizes to enter PACIFIC's Central
         Offices, with samples of identifying credentials to be carried by such
         persons.

1.7.     With respect to any equipment, support equipment, systems, tools and
         data of one Party on the premises of the other Party, or spaces which
         contain or house the other Party's equipment or equipment enclosures,
         each Party shall comply with the security and safety procedures and
         requirements of the Party that owns or controls the premises, including
         but not limited to sign-in, identification and escort requirements.

1.8.     PACIFIC shall allow CLEC to inspect or observe spaces which house or
         contain CLEC equipment or equipment enclosures at any time within
         normal business hours and shall furnish CLEC with all keys, entry
         codes, lock combinations, or other materials or information which may
         be needed to gain entry into any secured CLEC space. In the 


<PAGE>   271
                                                                   Attachment 16
                                                                          Page 2

         event of an emergency, CLEC shall contact a SPOC provided by PACIFIC
         for access to spaces which house or contain CLEC equipment or equipment
         enclosures. Such PACIFIC SPOC shall available to receive calls from
         CLEC twenty-four (24) hours a day, seven (7) days a week and make
         access available to CLEC within three (3) hours after receiving a call
         from CLEC.

1.9.     PACIFIC agrees not to use card access readers and devices that use
         cards which are encoded identically, or that use mechanical coded locks
         on external doors or on internal doors to spaces which house mission
         critical equipment or equipment which supports the mission critical
         equipment.

1.10.    Keys used in PACIFIC's keying systems for spaces which contain or house
         CLEC equipment or equipment enclosures shall be limited to PACIFIC
         employees and representatives for emergency access only. CLEC shall
         have the right to require PACIFIC to change locks at PACIFIC's expense
         where there is evidence of inadequate security. In all other cases,
         CLEC may require PACIFIC to change locks at CLEC's expense.

1.11.    PACIFIC shall install security studs in the hinge plates of doors
         having exposed hinges if such doors lead to spaces which contain or
         house CLEC equipment or equipment enclosures.

1.12.    PACIFIC shall use reasonable measures to control' unauthorized access
         from passenger and freight elevators to spaces which contain or house
         CLEC equipment or equipment enclosures.

1.13.    PACIFIC shall provide notification within two (2) hours to designated
         CLEC personnel to indicate an actual or attempted security breach.

2.       ADDITIONAL PROVISIONS APPLICABLE TO COLLOCATION SPACES

2.1.     PACIFIC shall be responsible for the security of CLEC's collocation
         spaces. Security measures shall meet or exceed CLEC '5 requirements. If
         a security issue arises or if CLEC believes that PACIFIC's security
         measures fail to meet CLEC's requirements, CLEC shall notify PACIFIC
         and the Parties shall work together to address the problem. PACIFIC
         shall, at a minimum, do the following:

2.2.     PACIFIC shall design collocation cages to prevent unauthorized access.

2.3.     PACIFIC shall establish procedures for controlling access to the
         collocation areas by employees, security guards and others. Those
         procedures shall limit access to the collocation equipment areas to
         PACIFIC's employees, agents or invitees having a business need to be in
         these areas. PACIFIC shall require all persons entering the collocation
         equipment areas to wear identification badges.


<PAGE>   272
                                                                   Attachment 16
                                                                          Page 3

2.4.     PACIFIC shall provide card key access to all collocation equipment
         areas, along with a positive key control system for each collocator's
         cage area.

2.5.     CLEC security personal may audit the collocation area at a PACIFIC
         location for compliance with security procedures.

3.       DISASTER RECOVERY

3.1.     PACIFIC shall maintain for CLEC the same level of disaster recovery
         capability to be used in the event of a system failure or emergency as
         PACIFIC provides for itself. PACIFIC will provide CLEC with a written
         summary of such capability within 30 days after the effective date of
         this Agreement, subject to the non-disclosure provisions of this
         Agreement.

4.       DATA PROTECTION

4.1.     Each Party shall install controls in any of its data bases to which the
         other Party has access:

4.1.1.   to deny access to data base users after a pre-determined period of
         inactivity; and

4.1.2.   to protect the other Party's proprietary information and the other
         Party's customer proprietary information.

4.2.     PACIFIC shall maintain controls over databases used by CLEC to protect
         both ongoing operational and update integrity, at parity with control
         features that PACIFIC provides to itself.

4.3.     Each party shall assure that all approved system and modem access is
         secured through security servers. Access to or connection with a
         network element shall be established through a secure network or
         security gateway.

4.4.     With respect to access to the network or gateway of the other Party,
         each party will comply with the other Party's corporate security
         instructions for computer and network security.

5.       NETWORK FRAUD CONTROL

5.1.     PACIFIC shall make available to CLEC for use with any services provided
         by PACIFIC to CLEC under this Agreement all present and future fraud
         control features, including prevention, detection, or control
         functionality utilized in PACIFIC's network. At present these features
         include (1) disallowance of call forwarding to international locations,
         (ii) coin originating ANI II digits, and (iii) dial tone reorigination
         patches, (iv) terminating blocking of 800 and (v) 900/976 blocking.


<PAGE>   273
                                                                   Attachment 16
                                                                          Page 4

5.2.     In addition, subject to section 5.3.3 below and Section 1.6 of
         Attachment 6, PACIFIC shall provide partitioned access within pertinent
         Operations Support Systems ("OSS") for fraud control.


<PAGE>   274
                                                                   Attachment 16
                                                                          Page 5

5.3.     Rates:

5.3.1.   Terminating blocking of 800 and 900/976 blocking are available as Local
         Services, at the rates specified in Attachment 8.

5.3.2.   Disallowance of call forwarding to international locations, coin
         originating ANI II digits, and dial tone reorigination patches, are
         available with Local Services, basic exchange service or LSNE, at no
         additional charge.

5.3.3.   Future fraud control features and functionalities will be available at
         rates, if any, subject to the Act, regulations thereunder and relevant
         FCC and Commission decisions.

6.       LAW ENFORCEMENT INTERFACE

6.1.     Each Party shall provide the other Party with a single point of contact
         to interface on a twenty-four (24) hour, seven (7) day a week basis on
         law enforcement and service annoyance issues, including, without
         limitation, call traces, wiretaps and traps.

6.2.     PACIFIC will provide necessary assistance to law enforcement personnel
         to facilitate the execution of court orders addressed to PACIFIC that
         authorize wiretaps and dialed number recorders relating to services and
         facilities of CLEC customers. PACIFIC will notify law enforcement
         personnel that the court order applies to an CLEC circuit, not a
         PACIFIC circuit. PACIFIC will bill the appropriate law enforcement
         agency for these services under its customary practices.

6.3.     When requested by CLEC for security purposes, PACIFIC shall use
         reasonable best efforts to provide CLEC with Recorded Usage Data within
         two hours of the call completion but in any event shall provide such
         data not later than twenty-four hours of call completion. The Data may
         be provided in AMA format.

6.4.     To the extent required by law, PACIFIC shall provide soft dial tone to
         allow only the completion of calls to final termination points required
         by law.


<PAGE>   275
                                  ATTACHMENT 17

                        SERVICE PERFORMANCE MEASURES AND

                               LIQUIDATED DAMAGES



<PAGE>   276
                          SERVICE PERFORMANCE MEASURES

                                TABLE OF CONTENTS


<TABLE>
<CAPTION>
SECTION                                                                 PAGE
- -------                                                                 ----
<S>                                                                     <C>
A.      Performance Index and Measurements:

        A.1.  Provisioning                                                2

        A.2.  Maintenance                                                 8

        A.3.  Wholesale Billing                                          10

        A.4.  Customer Usage Data                                        11

B.      Performance Remedies (Liquidated Damages)                        16
</TABLE>



<PAGE>   277
                                                                   ATTACHMENT 17
                                                                          Page 1



INTRODUCTION

I.      Pursuant to Section 12 of this Agreement, Section A of this Attachment
        17 sets forth the service standards, measurements, and performance
        applicable to Local Services, Network Elements or Combinations provided
        under this Agreement.

        Section B of this Attachment 17 sets forth liquidated damages to be paid
        in the event that specified failures of performance occur.

        As experience is acquired under this Agreement with the new business
        processes established, the Parties expect to learn which measurements
        set forth in Section A are more or less useful than others. The Parties
        also expect that experience will show whether new measurements are
        needed or whether certain existing measurements are not needed.
        Accordingly, while this Agreement is in effect, either Party may, from
        time to time, request the addition, deletion or modification of the
        measures set forth in Section A. In the event the Parties cannot agree
        on such addition, deletion or modification they will submit such dispute
        for resolution to an Inter-Company Review Board, as identified in
        Section 3.1 of Attachment 3 to this Agreement provided, however, that
        other provisions of Attachment 3 shall not apply.

        Unless otherwise stated, PACIFIC shall make monthly reports to CLEC for
        all performance measures. Should a dispute arise concerning the accuracy
        of any of PACIFIC's measurements, CLEC may audit them under procedures
        set out in Section 11.9 of the Umbrella Agreement.

II.     "Parity" Defined: PACIFIC shall provide services to CLEC that, for any
        relevant period of measurement, have substantially the same
        characteristics of timeliness and performance as PACIFIC provides at
        retail and, for such purpose, those services shall be deemed to have
        substantially the same characteristics for any population of thirty (30)
        or more observations if it has the same statistical distribution at the
        90% confidence interval. Service Parity is achieved when PACIFIC's
        service performance, as defined by the designated comparable measures,
        is within 1.65 standard deviations (90% confidence level) of the average
        retail performance for the equivalent retail product or service, subject
        to the definitions contained within this Attachment 17. The calculation
        of 1.65 standard deviations will be based on the most recent two full
        calendar quarters of actual performance and revised quarterly. As used
        in the preceding sentence, PACIFIC's "average retail performance for the
        equivalent retail product or service" shall be calculated using all
        available observations of PACIFIC performance, rather than any form of
        sampling. "PACIFIC's service performance" for CLEC shall, similarly, be
        calculated using all available observations. Average performance will be
        measured and reported monthly for each comparable measure. Liquidated
        damages will apply when performance is not al parity.

        Service Parity applies to the comparable measures only. Other agreed to
        performance measures will be based on specified service standards and
        liquidated damages will apply as defined in this Attachment 17.



<PAGE>   278
                                                                   ATTACHMENT 17
                                                                          Page 2



                                    SECTION A

                 A.1. PROVISIONING SERVICE PERFORMANCE MEASURES

1.      % INSTALLATION APPOINTMENTS COMMITMENT MET

        Definition:
        This measures the percent of service orders where the completion date
        matches the committed due date. (e.g., The due date is 4/01/96 am,
        service is installed and the order is completed 4/01/96 am).

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. This measure excludes disconnect
        orders. This measure will be calculated separately for each PACIFIC
        region. These regions are Los Angeles, Bay, North and South.
        Measurements will be calculated by Business (Single and Multi-line,
        Centrex, PBX Trunks), Residence, LINK, and ISDN.


                    TOTAL NUMBER OF ORDERS COMPLETED ON TIME
                    ----------------------------------------
                       TOTAL NUMBER OF ORDERS COMPLETED                    X 100


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks), Residence, LINK, and ISDN.

2.      % INSTALLATION REPORTS

        Definition:
        This measures the number of trouble reports that occur within the first
        thirty (30) days of service installation (e.g., Service is installed on
        4/01/96, a trouble is reported on 4/05/96).

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. This measure will be calculated
        separately for each PACIFIC region. These regions are Los Angeles, Bay,
        North and South. This measure only includes PACIFIC Network Troubles.
        Measurements will be calculated by Business (Single and Multi-line,
        Centrex, PBX Trunks), Residence, LINK, and ISDN.


                   TOTAL NUMBER OF INSTALLATIONS WITH TROUBLE
                    REPORTED WITHIN 30 DAYS FROM COMPLETION.
                   ------------------------------------------
                       TOTAL NUMBER OF SERVICE ORDERS COMPLETED            X 100



<PAGE>   279
                                                                   ATTACHMENT 17
                                                                          Page 3



        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) Residence LINK, and ISDN.

3.      FIRM ORDER CONFIRMATION (FOC) RECEIVED IN <4 HOURS

        Definition:
        Measures percent of Firm Order Confirmations sent to the CLEC within 4
        hours of receipt of the Basic Exchange order, Centrex line or PBX trunk.
        This measurement applies to less than 20 Basic Exchange lines or Links
        on one order and less than 6 Centrex lines, 6 PBX trunks, or 6 ISDN
        lines on one order.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below. Measurements will be
        calculated by Business (Single and Multi-line, Centrex, PBX Trunks),
        Residence, LINK, and ISDN.


                   TOTAL NUMBER OF FOC'S RETURNED IN <4 HOURS
                   ------------------------------------------
                       TOTAL NUMBER OF FOC'S TO BE RETURNED          X 100 = 95%

        Report Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) ISDN, Residence, LINK

4.      FIRM ORDER CONFIRMATION QUALITY - % ACCURATE AND COMPLETE

        Definition:
        Measures percent of Firm Order Confirmations that are accurate and
        complete.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below. Measurements will be
        calculated by Business (Single and Multi-line, Centrex, PBX Trunks),
        Residence, LINK, and ISDN.


               TOTAL NUMBER OF FOC'S RETURNED ACCURATE AND COMPLETE
               ----------------------------------------------------
                 TOTAL NUMBER OF FOC'S TO BE RETURNED FOR THE MONTH  X 100 = 95%


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) ISDN. Residence, LINK.




<PAGE>   280
                                                                   ATTACHMENT 17
                                                                          Page 4



5.      CLEC TO CLEC MIGRATION NOTIFICATION - % ON TIME

        Definition:
        Measures the percent of migration notifications sent to the outgoing
        CLEC within 48 hours of receipt of the migration order.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below. Measurements will be
        calculated by Business (Single and Multi-line, Centrex, PBX Trunks),
        Residence, LINK, and ISDN.


                TOTAL NUMBER OF MIGRATION NOTIFICATIONS RETURNED < 48 HOURS
                -----------------------------------------------------------
                       TOTAL NUMBER OF MIGRATION NOTIFICATIONS 
                       RETURNED FOR THE MONTH                        X 100 = 95%

        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks), ISDN, Residence.

6.      REQUESTS FOR CUSTOMER SERVICE RECORDS (CSR)

        Definition:
        Measures the percent of Customer Service Records sent to CLEC within 4
        hours of receiving the request and appropriate LOA. This measurement
        applies to less than twenty (20) Basic Exchange lines billed under one
        number and less than six (6) Centrex lines or six (6) PBX trunks, or six
        (6) ISDN lines, billed under one number. Measurements will be calculated
        by Business (Single and Multi-line, Centrex, PBX Trunks), Residence,
        LINK, and ISDN.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below.


                          NUMBER OF CSRS RECEIVED <4 HOURS
                          --------------------------------
                           TOTAL NUMBER OF REQUEST FOR CSR           X 100 = 95%


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) ISDN.
        Residence

7.      LOCAL PIC CHANGE - % ON TIME

        Definition:



<PAGE>   281
                                                                   ATTACHMENT 17
                                                                          Page 5



        Measures the percent of local PIC changes initiated by the CLEC that are
        processed within twenty-four (24) hours of receipt of the order. This
        interval will stay in parity with interLATA PICs.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below. Measurements will be
        calculated by Business (Single and Multi-line Centrex, PBX Trunks),
        Residence, LINK, and ISDN.


                  TOTAL NUMBER OF PIC CHANGES COMPLETED WITHIN 24 HOURS
                  -----------------------------------------------------
                          TOTAL NUMBER OF PIC CHANGE REQUESTS        X 100 = 95%

        Reporting Period:

        -      Monthly, and sorted by Business (Single and Multi-line, Centrex,
               PBX Trunks) ISDN, Residence.

8.      SERVICE ORDER DISCREPANCY

        Definition:
        Measures percent of Orders initiated by CLEC that result in a
        discrepancy. The discrepancy is a result of CLEC issuance. An order will
        be considered to be discrepant if at any time after receipt of the order
        PACIFIC has to either reject the order or request a supplement of the
        order from the CLEC as a result of incomplete or inaccurate information,
        as defined in PACIFIC's Resale Access Line Request Forms Instruction
        Guide (GUIDE), Version 4, dated April 8, 1996. If CLEC service orders
        conform to the Guide, rejects or requests to supplement such service
        orders will be excluded from this measurement and will not incur
        Liquidated Damages, as defined in Section B of this Attachment. CLEC and
        PACIFIC will mutually agree on revisions to the Guide that effect
        service order form or content. If they are unable to agree, they will
        take the dispute to the Inter-company review Board as set forth in the
        Section I of the Introduction to this Attachment.

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below. Measurements will be
        calculated by Business (Single and Multi-line, Centrex, PBX Trunks),
        Residence, LINK, and ISDN.



                     TOTAL NUMBER OF ORDERS ISSUED WITHOUT DISCREPANCY
                     -------------------------------------------------
                          TOTAL NUMBER OF ORDERS ISSUED              X 100 = 90%



<PAGE>   282
                                                                   ATTACHMENT 17
                                                                          Page 6



        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) ISDN, Residence, LINK.

9.      TRUNK ORDERS INSTALLED ON TIME

        Definition:
        Measures the percent of local interconnection trunks that are completed
        on or before the due date. The comparative performance measure is Future
        Group B & D Switched Access.

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. The comparative measure is Feature
        Group B & D switched access.


                    TOTAL NUMBER OF ORDERS COMPLETED ON TIME
                    ----------------------------------------
                            TOTAL NUMBER OF ORDERS COMPLETED              X 100


        Reporting Period:
        Monthly

10.     TRUNK FIRM ORDER CONFIRMATION TIMELINESS

        Definition:
        Measures percent FOC sent to CLEC within the specified time (equivalent
        to Feature Group B & D Switched Access.)

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. The comparative measure is Feature
        Group B & D Switched Access.

        Reporting Period:
        Monthly

11.     TRUNK SERVICE ORDER DISCREPANCY

        Definition:

        Measures percent of Interconnection Service Request (ISR) initiated by
        CLEC that result in a discrepancy. The discrepancy is a result of CLEC
        issuance. An order will be considered to be discrepant if at any time
        after receipt of the order PACIFIC has to either reject the order or
        request a supplement of the order from CLEC as a result of incomplete or
        inaccurate information, as defined in PACIFIC's Resale Access Line
        Request Forms Instruction Guide (GUIDE),

<PAGE>   283
                                                                   ATTACHMENT 17
                                                                          Page 7



        Version 4, dated April 8, 1996. If CLEC service orders conform to the
        Guide, rejects or requests to supplement such service orders will be
        excluded from this measurement and will not incur Liquidated Damages, as
        defined in Section B of this Attachment. CLEC and PACIFIC will mutually
        agree on revisions to the Guide that effect service order form or
        content. If they are unable to agree, they will take the dispute to the
        Inter-company review Board as set forth in the Section 1 of the
        Introduction to this Attachment

        Method of Calculation:
        As a measurement of Performance Standards, this metric will comply with
        the specific performance level shown below



                  TOTAL NUMBER OF ORDERS ISSUED WITHOUT DISCREPANCY
                  -------------------------------------------------
                        TOTAL NUMBER OF ORDERS ISSUED                X 100 = 90%


        Reporting Period:
        Monthly

12.     FORECASTING

        Definition:
        Measures the accuracy of forecasted volumes of LINK or Residence,
        Business (Single and Multi-line, Centrex, PBX Trunks), ISDN resale
        service orders.

        Method of Calculation:
        Forecasts are accurate within 20% +/- in any calendar month of the
        forecast period (measurement excludes Interconnection Trunks)

        Reporting Period:
        Monthly

13.     AVERAGE DELAY DAYS

        Definition:
        Measures the average number of days a service order is delayed due to an
        appointment being missed.

        Method of Calculation:
        As a measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. Measurements will be calculated by
        Business (Single and Multi-line. Centrex, PBX Trunks), Residence, LINK,
        and ISDN.

                      Total delayed days
                      Total orders missed

<PAGE>   284
                                                                   ATTACHMENT 17
                                                                          Page 8



                  A.2 MAINTENANCE SERVICE PERFORMANCE MEASURES

1.      % MAINTENANCE APPOINTMENTS MET

        Definition:
        This measures the number of troubles that are cleared on or before the
        committed date and time.

        Method of Calculation:
        As a Measurement of Comparable Service, this method will be in parity
        with PACIFIC's comparable services. This measure includes PACIFIC
        network Troubles only. This measure will be calculated separately for
        each PACIFIC region. These regions are Los Angeles, Bay, North and
        South. Measurements will be calculated by Business (Single and
        Multi-line, Centrex, PBX Trunks), Residence, LINK, and ISDN.



                 NUMBER OF TROUBLE REPORTS WITH APPOINTMENTS MET
                 -----------------------------------------------
                              NUMBER OF TROUBLE REPORTS COMPLETED        X 100


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks), Residence, LINK, and ISDN.

2.      % REPEAT TROUBLES WITHIN 30 DAYS

        Definition:
        This Measures the percent of trouble report on the same telephone line
        where there was a previous trouble within the last thirty days.

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. This measure includes PACIFIC
        Network troubles only. This measure will be calculated separately for
        each PACIFIC region. These regions are Los Angeles, Bay, North and
        South. Measurements will be calculated by Business (Single and
        Multi-line, Centrex, PBX Trunks), Residence, LINK, and ISDN.



                          NUMBER OF REPEAT TROUBLE REPORTS
                          --------------------------------
                          NUMBER OF TROUBLE REPORTS COMPLETED


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) Residence LINK, and ISDN.

<PAGE>   285
                                                                   ATTACHMENT 17
                                                                          Page 9



3.      REPORT RATE

        Definition:
        The metric measures the number of troubles per one hundred (100) lines
        in service per month.

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. This measure includes PACIFIC
        Network troubles only. This measure will be calculated separately for
        each PACIFIC region. These regions are Los Angeles, Bay, North and
        South. Measurements will be calculated by Business (Single and
        Multi-line, Centrex, PBX Trunks), Residence, LINK, and ISDN.



                       NUMBER OF TROUBLE REPORTS PER MONTH
                       -----------------------------------
                                 NUMBER OF LINES


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks), Residence, LINK, and ISDN.

4.      RECEIPT TO CLEAR DURATION

        Definition:
        Measures the average duration in hours and minutes of all trouble
        reports from receipt to clear.

        Method of Calculation:
        As a Measurement of Comparable Service, this metric will be in parity
        with PACIFIC's comparable services. This measure includes PACIFIC
        Network troubles only. This measure will be calculated separately for
        each PACIFIC region. These regions are Los Angeles, Bay, North and
        South. Measurements will be calculated by Business (Single and
        Multi-line, Centrex, PBX Trunks), Residence, LINK, and ISDN.



                    TOTAL NUMBER OF TROUBLE HOURS AND MINUTES
                    -----------------------------------------
                         TOTAL NUMBER OF TROUBLE REPORTS


        Reporting Period:
        Monthly, and sorted by Business (Single and Multi-line, Centrex, PBX
        Trunks) Residence, LINK, and ISDN.

<PAGE>   286
                                                                   ATTACHMENT 17
                                                                         Page 10



                           A.3 LOCAL WHOLESALE BILLING

1.      TIMELINESS OF MECHANIZED LOCAL BILL DELIVERY

        Definition:
        Measures the number of days from bill date to delivery.

        Method of Calculation:



                     NUMBER OF MECHANIZED CABS BILLS ON TIME
                     ---------------------------------------
                               TOTAL NUMBER OF BILLS RECEIVED             X 100


2.      TIMELINESS OF LOCAL SERVICE ORDER BILLING

        Definition:
        Measures the number of Local Service Orders billed within the current
        bill cycle.

        Calculation:
        Will be based on a statistically valid sample of billed orders.



                   NUMBER OF LOCAL ORDERS BILLED IN THE CORRECT BILL PERIOD
                   --------------------------------------------------------
                               TOTAL SERVICE ORDERS                       X 100


3.      ACCURACY OF MECHANIZED CABS BILL FORMAT

        Definition:
        Measures the number of bills that pass agreed upon validation edits
        (format) the first time.

        Calculation:



                 NUMBER OF ACCURATELY FORMATTED CABS MECHANIZED BILLS
                 ----------------------------------------------------
                              TOTAL NUMBER OF CABS MECHANIZED BILLS       X 100


4.      FINANCIAL ACCURACY OF LOCAL OTHER CHARGES AND CREDITS

        Definition:
        Measures the accuracy of the OC&C Local Charges

        Calculation:
        Will be based on a statistically valid sample of OC&C Charges

<PAGE>   287
                                                                   ATTACHMENT 17
                                                                         Page 11




                  100 - (TOTAL ESTIMATED NET CONSEQUENCES OF $ REC &
                  --------------------------------------------------
                              NRC OC&C TOTAL NET OC&C BILLED $            X 100


5.      TIMELINESS OF CORRECTION/ADJUSTMENT DOLLARS

        Definition:
        Measures the number of adjustments corrected within the agreed upon time
        frames

        Calculation:


                 NUMBER OF ERRORS CORRECTED IN AGREED TIME FRAME
                 -----------------------------------------------
                          TOTAL NUMBER OF ERRORS                          X 100


6.      BILL PERIOD CLOSURE

        Definition:
        Measures the review of each bill within agreed upon time frames.

        No Calculation Required

                  A.4 USAGE DATA TRANSFER PERFORMANCE MEASURES

GENERAL DESCRIPTION:
        PACIFIC will provide Local Usage Information detail in an accurate
        timely manner. The format and content is described in the Bellcore
        EXCHANGE MESSAGE RECORD (EMR) document in effect as of the Effective
        Date of this Agreement and the CLEC Local Resale Data Transfer
        Requirements.

        Because these processes are new, CLEC and PACIFIC agree to jointly
        review and revise these performance standards as Local Resale is fully
        implemented to ensure that: 

        -    the processes are stabilized and that agreed upon in-service 
             volumes are met. 
        -    comparative measures of parity with PACIFIC's retail processes are
             established, where appropriate
        -    the standards reflect elements required by CLEC to bill end users, 
        -    an accurate baseline using some historical data for resale is in 
             place.

1.      FILE TRANSFER

        Definition:
        PACIFIC will initiate and transmit files that are error free and without
        loss of signal.

<PAGE>   288
                                                                   ATTACHMENT 17
                                                                         Page 12



        Method of Calculation:



                          NUMBER OF FILES RECEIVED
                          ------------------------
                             NUMBER OF FILES SENT             X 100 = > 95%
                                                                      -    


        Note: All measurements will be on a calendar month. Joint review of
        performance and value for this standard will be done after six months
        from Effective Date. No comparative measure applies

        Reporting Period:
        Monthly

2.      % TIMELINESS

        Definition:
        PACIFIC will mechanically transmit, via CONNECT: Direct, all available
        usage records to CLEC's Message Processing Center once a day, Monday
        through Friday, or as negotiated. CLEC and/or PACIFIC's Data Center
        Holidays are excluded. CLEC and PACIFIC will exchange schedules of
        designated holidays.

        By January 1, 1997, PACIFIC and CLEC will jointly audit, review, and
        agree on comparative measures of timeliness; i.e. a measure of parity
        between the methods used to provide usage data to PACIFIC's retail
        billing and the methods used to process CLEC's usage data to CLEC.
        In-service thresholds will be determined using accepted statistical
        algorithms.

        In the interim, a joint analysis of the timeliness based on cooperative
        test accounts will be conducted to ensure common definitions and scope
        and to create a baseline for comparison. The following are interim
        benchmarks for timeliness:

Sept. - Nov. 1996:     90% of all messages delivered within 5 days from when 
                       message recorded.
Dec. - Jan. 1997:      95% of all messages delivered within 5 days from when 
                       message recorded.
Jan. - June 1997:      99% of all messages delivered within 10 days from when 
                       message recorded;
                       100% of all messages delivered within 30 days from when
                       message recorded; or demonstrate parity of performance
                       with PACIFIC Retail Business standard, as defined by
                       benchmark audit and analysis.

Note: The audit and analysis of performance during the above time frames is
intended to validate the parity of performance standards. Therefore, the above
time frames and measurements are exempt from Performance Credits / Liquidated
Damages as specified in Section B of this Attachment.

June 1997:             Specified Performance Standard:
End of Agreement       95% of all messages delivered within 5 days from when 
                       message recorded.
Jan. - June 1997:      99% of all messages delivered within 10 days from when 
                       message recorded;
                       100% of all messages delivered within 30 days from when
                       message recorded;

<PAGE>   289
                                                                   ATTACHMENT 17
                                                                         Page 13



                       or;

                       Parity of Performance:
                       The above Specified Performance Standard is subject to
                       change upon PACIFIC's ability to demonstrate Parity of
                       Performance with its Retail Business standard, as defined
                       by benchmark audit and analysis.

        Note: The above time frame and measurement is not exempt from
        Performance Credits / Liquidated Damages as specified in Section B of
        this Attachment.

        Reporting Period:
        Monthly

3.      % RECORDED USAGE DATA COMPLETE (A SELF-REPORTING MEASUREMENT)

        Definition:
        PACIFIC will provide all required Recorded Usage Data and ensure that it
        is processed and transmitted within time periods established in
        Attachment 13.

        By January, 1997, in-service volume thresholds will be determined using
        accepted statistical algorithms to provide a basis for comparison with
        PACIFIC's retail performance. Because messages that are held in
        PACIFIC's error file are usually not uniquely identified, CLEC and
        PACIFIC agree to invoke auditing procedures, as defined in Section 11.1
        of the Agreement, to ensure that the rate of unbillable messages is in
        parity with the rate of unbillable messages experienced in PACIFIC's
        retail business.

        Method of Calculation:


              TOTAL NUMBER OF RECORDED USAGE DATA RECORDS DELIVERED
          DURING CURRENT MONTH MINUS NUMBER OF USAGE CALL RECORDS HELD
                          IN ERROR FILE AT END OF MONTH
          ------------------------------------------------------------
      TOTAL NUMBER OF RECORDED USAGE DATA RECORDS DELIVERED X 100 = 99.98%


4.      % ACCURACY

        Definition:
        PACIFIC will provide Recorded Usage Data in the format and with the
        content as defined in the Bellcore document. These measures relate only
        to Unbillable unrated local and local toll messages due to critical edit
        failures (format errors).

        Method of Calculation:


          TOTAL NUMBER OF UNRATED LOCAL MESSAGES TRANSMITTED CORRECTLY
          ------------------------------------------------------------
               TOTAL NUMBER OF UNRATED LOCAL MESSAGES TRANSMITTED      100=> 98%


        Note:  No comparative measure applies.

<PAGE>   290
                                                                   ATTACHMENT 17
                                                                         Page 14



        Reporting Period:
        Monthly

5.      % ERROR FREE DATA PACKS

        Definition:
        PACIFIC will initiate and transmit all packs that are error free in the
        format agreed, as defined in the CLEC Local Resale Requirements.

        Method of Calculation:


                  NUMBER OF FILE RECEIVED
                  -----------------------
                    NUMBER OF FILES SENT              X 100 = 95%


        Note: Joint review of performance and value for this standard will be
        done after six months from the Effective Date.

        Reporting Period:
        Monthly

6.      % RECORDED USAGE DATA ERROR RESOLVED

        Definition:
        PACIFIC will ensure that the Recorded Usage Data is transmitted to CLEC
        error free, the level of detail includes but not limited to: detail
        required to Rating the call, Duration, Correct Originating/Terminating
        information, etc. The error is reported to PACIFIC as a Modification
        Request (MR). Performance is measure at two levels--Severity 1 or
        Severity 2.

        Method of Calculation:

        SEVERITY 1: INCLUDES MESSAGES THAT ARE BILL AFFECTING AND REPRESENTS 1%
        OF THE CURRENT CUSTOMER BASE. CONTACT TO BE MADE BY TELEPHONE.


                  NUMBER OF SEVERITY 1 MR'S FIXED > 24 HOURS
                  ------------------------------------------
                          NUMBER OF SEVERITY 1 MR'S           X 100 = > 90%
                                                                      -    


        100% OF ALL SEVERITY 1 MR TO BE FIXED WITHIN FIVE (5) DAYS

        SEVERITY 2: NON-BILL AFFECTING ERRORS. CONTACT MAY BE BY PHONE, FAX,
        E-MAIL, ETC.


                  NUMBER OF SEVERITY 2 MR'S FIXED > 3 DAYS
                  ----------------------------------------
                          NUMBER OF SEVERITY 2 MR'S           X 100 = < 90%

<PAGE>   291
                                                                   ATTACHMENT 17
                                                                         Page 15



        100% OF ALL SEVERITY 2 MR TO BE FIXED WITHIN TEN (10) DAYS

7.      % INQUIRIES RESPONSIVENESS

        Definition:
        PACIFIC will respond to all usage inquires within twenty-four (24) hours
        of CLEC request for information, Monday through Friday. Severity 1 MR
        will be responded to on a seven (7) day a week basis. CLEC will receive
        continuous status reports until the request for information is
        satisfied.

        Method of Calculation:


                  NUMBER OF BILLING INQUIRIES RESPONDED TO 24 HOURS
                  -------------------------------------------------
                          NUMBER OF BILLING INQUIRIES                X 100 = 98%


<PAGE>   292
                                                                   ATTACHMENT 17
                                                                         Page 16



                          SECTION B LIQUIDATED DAMAGES

For certain delays or failures of either Party under this Agreement effective
July 1 1997 and there are at least thirty (30) occurrences per month per
Functional Activity, and on a Region Basis, as appropriate, the non-performing
Party shall pay the other Party the amounts calculated as provided below.

Average Non-Recurring Charges -
The Average Non-Recurring Charge is the sum of all non-recurring charges applied
to service orders issued by CLEC and for which there were performance defects (
e.g., Installation Appointment Missed, Late CSR, Service Order Discrepancy,
etc.) divided by the total number of defects within the measurement period.
These calculations will be made by Functional Activity and product
(Business-Single/Multi-line, Centrex, PBX Trunks), Residence, LINK, and ISDN.

Average Recurring Charges -
The Average Recurring Charge is the sum of all recurring charges applied to
service orders issued by CLEC and for which there were performance defects (
e.g. Maintenance Appointment Missed, Repeat Trouble, etc.) divided by the total
number of defects within the measurement period. These calculations will be made
by Functional Activity and product (Business-Single/Multi-line, Centrex, PBX
Trunks), Residence, LINK, and ISDN.

Below are listed selected functional activities which are critical to customer
satisfaction and the remedy payable by the non-performing Party for specific
lack of performance as described in the following table:


<TABLE>
<CAPTION>
      FUNCTIONAL ACTIVITY                   THRESHOLD                                 LIQUIDATED DAMAGE
- ---------------------------------------------------------------------------------------------------------------------
<S>                               <C>                                  <C>
1)  % Installation Appointment    When results fall below parity       Waiver of an average nonrecurring installation
    Met.  (A.1.1)                                                      charge for the number of lines ordered and not
                                                                       installed on time OR orders found to have
2)  % Installation Reports.                                            a PACIFIC trouble within 30 days after
    (A.  1.2)                                                          installation.  The waiver would be for
                                                                       the amount of orders below the comparable
                                                                       measurement in retail.
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   293
                                                                   ATTACHMENT 17
                                                                         Page 17



<TABLE>
<S>                               <C>                                  <C>
- ---------------------------------------------------------------------------------------------------------------------
1)  % Maintenance Appointments    When results fall below parity       One month's average recurring charges per line 
    Met.                                                               out of service that falls below parity. The    
2)  % Repeat Troubles within 30                                        waiver would be for the amount of lines out of 
    days.                                                              service below the comparable measurements in   
3)  Report Rate.                                                       retail within the described (4) PACIFIC        
4)  Receipt To Clear Duration.                                         Regions.                                       
                                                                       
                                                                       Note: If our maintenance performance for a
                                                                       given month fails to meet two or more
                                                                       assurance measures as described in Section A,
                                                                       PACIFIC will be liable for the category
                                                                       liquidated damages that results in the highest
                                                                       amount.
- ---------------------------------------------------------------------------------------------------------------------
FOC Complete and Accurate         Less than 85% of FOCs                20% of an Average Non-Recurring charge.
                                  returned are complete/accurate      
- ---------------------------------------------------------------------------------------------------------------------
FOC Timeliness                    Less than 85% of FOCs                10% of an Average Non-Recurring charge.
                                  returned within 4 hours              
- ---------------------------------------------------------------------------------------------------------------------
Migration Notification            Less than 85% of Migration           Credit PlC Change Charge.
                                  Notifications sent in 48 hours.
- ---------------------------------------------------------------------------------------------------------------------
CLEC PIC Change                   Less than 85% of CLEC PIC            Credit PlC Change Charge.
                                  changes completed within 24
                                  hours.
- ---------------------------------------------------------------------------------------------------------------------
Service Order Discrepancy         Less than 80% of orders              20% of a Average Non-Recurring charge
                                  submitted without material           (Paid by CLEC).
                                  errors.                              
- ---------------------------------------------------------------------------------------------------------------------
Customer Service Record           Less than 85% of CSRs are            5% of a Average Non-Recurring charge for each
                                  sent within 4 hours.                 CSR for which there is a subsequent service
                                                                       order issued.
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   294
                                                                   ATTACHMENT 17
                                                                         Page 18



<TABLE>
<S>                               <C>                                  <C>
- ---------------------------------------------------------------------------------------------------------------------
Trunk Orders Completed on         When results fall below              100% of the total non-recurring charges for
Time                              parity.                              equivalent products (FG B or D trunks), as 
                                                                       specified in CPUC 175-T, Section 6.        
- ---------------------------------------------------------------------------------------------------------------------
Trunk Firm Order Confirmation     When results fall below              20% of the total non-recurring charges for
Delivered on Time                 parity.                              equivalent products (FG B or D trunks), as
                                                                       specified in CPUC 175-T, Section 6.
- ---------------------------------------------------------------------------------------------------------------------
Trunk Service Order Discrepancy   Less than 80% of orders are          20% of the total non-recurring charges for 
                                  submitted without material           equivalent products (FG B or D trunks), as 
                                  errors.                              specified in CPUC 175-T, Section 6.        
                                                                       
- ---------------------------------------------------------------------------------------------------------------------
Forecasting (Excludes             When product volumes exceeds         $10.00 per line or trunk for the amount        
Interconnection Trunks)           or falls below the +/- 20% of        ordered between 20% and 30% under the          
                                  the forecast amount.                 forecast. $20.00 per line or trunk for the     
                                                                       amount ordered between 31% and 40% under the   
                                                                       forecast. $35.00 per line or trunk for the     
                                                                       amount ordered between 41% or more under the   
                                                                       forecast. When volumes for products exceed the 
                                                                       forecast by 20%, all remedies associated with  
                                                                       preordering, ordering, provisioning and        
                                                                       maintenance will not apply.                    
- ---------------------------------------------------------------------------------------------------------------------
Recorded Usage Data (AKA Usage    Each instance delivery of            Annual interest rate of 8% compounded daily   
Data Transfer as described        Recorded Usage Data exceeds:         will be applied on net revenues for 50% of all
in Section A.5)                                                        messages delayed to CLEC beyond the then      
                                  a) A specified performance           prevailing performance standard and until     
                                  standard of:                         Recorded Usage Data is delivered, or sixty    
                                     95% within 5 days;                days from when message(s) was recorded,       
                                     99% within 10 days;               whichever comes first. Said
                                     100% within 30 days.              
                                  OR,                                  
                                                                       
                                  b) Parity of performance             
                                  standard as defined in the           
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>   295
                                                                   ATTACHMENT 17
                                                                         Page 19



<TABLE>
<S>                               <C>                                  <C>
- ---------------------------------------------------------------------------------------------------------------------
                                  benchmark audit and analysis         interest shall be applied on net revenues 
                                  which, once defined, shall           for 100% of all messages for which CLEC        
                                  prevail over a) above.               demonstrates actual delayed billing occurred as
                                                                       a result of late receipt of Recorded Usage     
                                                                       Data.                                          
- ---------------------------------------------------------------------------------------------------------------------
                                                                       PACIFIC will absorb all costs and not charge
                                                                       CLEC for any Recorded Usage Data not delivered
                                                                       to CLEC within sixty days from when the data
                                                                       was recorded by PACIFIC.

                                                                       Conditions that will be exempt from the above
                                                                       Credit application will be identified during
                                                                       the benchmark audit and analysis.
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   296
                                                                   Attachment 18





                                  ATTACHMENT 18

                                 INTERCONNECTION



<PAGE>   297

                                                                   Attachment 18

I.      LOCAL INTERCONNECTION TRUNK ARRANGEMENTS

        GENERAL

        The Parties will establish Local Interconnection Trunks to exchange
        local and intraLATA toll traffic. Neither Party shall terminate Switched
        Access traffic over Local Interconnection Trunks. Separate two-way Meet
        Point Trunks will be established for the joint provisioning of Switched
        Access traffic. Local Interconnection will be provided via two-way
        trunks unless both Parties agree to implement one-way trunks on a
        case-by-case basis.

        A.      Interconnection Within Each LATA.

                1.      Each Party will establish a Local Interconnection Trunk
                        Group with each Access Tandem in the LATA(s) in which it
                        originates or terminates local and/or toll traffic with
                        the other Party, unless CLEC orders LATA-Wide
                        Terminating Access from PACIFIC. The Parties may not
                        route Local Interconnection traffic to an Access Tandem
                        destined for an NXX that subtends another Tandem, except
                        as specified in Sections l.A.2 and II below. The Parties
                        agree that direct trunking to an end office from either
                        Party's end office or Access Tandem is permitted under
                        the terms of this section.

                2.      LATA-Wide Terminating Access

                        The Parties agree that CLEC may select a LATA-Wide
                        terminating arrangement. When CLEC selects such an
                        arrangement, interconnection is established at a single
                        tandem designated by PACIFIC for termination of all
                        Local Interconnection Traffic destined for any office in
                        that LATA.

                3.      Tandem-Level Terminating Access

                        Interconnection at PACIFIC tandems within each LATA:
                        CLEC will interconnect with all PACIFIC Access Tandems
                        in each of the LATA(s) in which it originates traffic
                        and interconnects with PACIFIC, unless CLEC selects the
                        LATA-Wide Terminating Option.

                4.      In addition to the tandem interconnection described
                        above, either Party may establish end office-to-end
                        office or end office-to-tandem or tandem-to-tandem trunk
                        groups. In the case of host-remote end offices, such
                        interconnection shall occur at the location of the host
                        or remote, at the option of the Party deploying the
                        host-remote end office.

                5.      CLEC and PACIFIC agree to interconnect their networks
                        through existing and/or new facilities between CLEC End
                        Offices and/or Access Tandem

                                       2

<PAGE>   298

                        Switches and the corresponding PACIFIC End Office and/or
                        Access Tandems set forth in Appendix A. The Parties will
                        establish logical trunk groups referencing the
                        appropriate CLEC Routing Point and PACIFIC Central
                        Office. In addition, where necessary, and as mutually
                        agreed to, the Parties will define facilities between
                        their networks to permit trunk group(s) to be
                        established between the points listed in Appendix A.
                        While Appendix A is unpopulated at the time of execution
                        of this Agreement, CLEC shall initially populate
                        Appendix A; PACIFIC may populate Appendix A further,
                        under paragraph 6 below.

                6.      Nothing in the foregoing restricts either Party from
                        ordering and establishing CLEC and/or PACIFIC Local
                        Interconnection trunk groups in addition to the initial
                        combinations described above. Amendments to Appendix A
                        may be made by either Party, upon 30 days written notice
                        and acceptance by the other Party. Acceptance will not
                        be unreasonably withheld. Such amendments may be made
                        without the need to renegotiate the terms of the rest of
                        this Attachment.

        B.      Single P01 Model.

                1.      For each interconnection between the Parties for the
                        exchange of local, intraLATA toll, and meet-point
                        Switched Access traffic, the Parties agree that CLEC
                        will designate a single Point Of Interconnection between
                        any two switching entities.

        C.      Sizing and Structure of Interconnection Facilities.

                1.      The Parties will mutually agree on the appropriate
                        sizing for facilities based interconnection, based on
                        the standards set forth below. The capacity of
                        interconnection facilities provided by each Party will
                        be based on mutual forecasts and sound engineering
                        practice, as mutually agreed to by the Parties during
                        planning and forecasting meetings. The interconnection
                        facilities provided by each Party shall be formatted
                        using either Alternate Mark Inversion Line Code or
                        Superframe Format Framing. D53 facilities will be
                        optioned for C-bit Parity.

                2.      When interconnecting at PACIFIC's tandems, the Parties
                        agree to establish Bipolar 8 Zero Substitution Extended
                        Super Frame ("B8ZS ESF") two-way trunks where
                        technically feasible for the sole purpose of
                        transmitting 64k CCC data calls. In no case will these
                        trunks be used for calls for which the User Service
                        Information parameter (also referred to as "Bearer
                        Capability") is set for "speech" unless all available
                        non 64K CCC circuits are busy. If all such circuits are
                        busy, CLEC and PACIFIC agree to use Network Management
                        Controls (including inter alia, re-routing to 64K CCC
                        trunk groups) pursuant to Section XII of this Attachment
                        to relieve



                                        3
<PAGE>   299

                                                                   Attachment 18

                        network congestion temporarily. Where additional
                        equipment is required, such equipment would be obtained,
                        engineered, and installed on the same basis and with the
                        same intervals as any similar growth job for IXC, CLC,
                        or PACIFIC internal customer demand for 64K CCC trunks.

                3.      When interconnecting at PACIFIC's digital End Offices,
                        the Parties have a preference for use of BBZS ESF
                        two-way trunks for all traffic between their networks.
                        Where available, such trunk equipment will be used for
                        these Local Interconnection Trunk Groups and Meet Point
                        Trunk Groups. Where AMI trunks are used, either Party
                        may request upgrade to B8ZS ESF when such equipment is
                        available.

        D.      Combination Interconnection Trunks.

                1.      The Parties agree to work cooperatively to combine all
                        functionalities of Local Interconnection Trunk Groups
                        and Meet Point Trunk Groups on a single Combination
                        Interconnection Trunk Group at any feasible Point Of
                        Interconnection where either Party desires, except in
                        connection with the LATA-Wide terminating option.

                2.      The Parties agree to make the initial decision as to
                        whether the use of Combination Interconnection Trunk
                        Groups is feasible, including a determination of
                        switched software compatibility, ordering procedures and
                        billing procedures, no later than six months from the
                        effective date of this Agreement.

                3.      If the Parties find the use of Combination
                        Interconnection Trunk Groups not to be feasible at that
                        time, the Parties will undertake a review of such
                        feasibility and a further decision on the use of
                        Combination Interconnection Trunk Groups at six month
                        intervals, at either Party's option, through the term of
                        the Agreement.

                4.      Until the Parties find Combination Interconnection Trunk
                        Groups to be feasible, Local Interconnection will be
                        provided via one-way and/or two-way trunks.

                5.      Whenever the use of Combination Interconnection Trunk
                        Groups is determined to be feasible, and ordering and
                        billing procedures have been established:

                        a)      Any new trunk groups may be ordered using the
                                Combination Interconnection Trunk Group option;
                                and

                        b)      The Parties will work together in good faith to
                                complete the conversion from the use of separate
                                Local Interconnection Trunk 



                                       4

<PAGE>   300

                                                                   Attachment 18


                                Groups and Meet Point Trunk Groups to the use of
                                Combination Interconnection Trunk Groups within
                                six months from that time.

        E.      Signaling Protocol. The Parties will interconnect their networks
                using SS7 signaling as defined in GR-317 and GR-394, including
                ISDN User Part ("IS UP") for trunk signaling and Transaction
                Capabilities Application Part ("TCAP") for CCS-based features in
                the interconnection of their networks. Either Party may
                establish CCS interconnections either directly and/or through a
                third party. CCS interconnection, whether direct or by third
                party shall be pursuant to PUB L-780023-PB/NB and in accordance
                with the rates, terms and conditions of the Parties' respective
                tariffs. The Parties will cooperate in the exchange of TCAP
                messages to facilitate full interoperability of CCS-based
                features between their respective networks, including all CLASS
                features and functions, to the extent each carrier offers such
                features and functions to its own end users. The Parties will
                provide all CCS signaling parameters, including CPN, and will
                honor all privacy indicators.

        F.      Transit Signaling: CLEC may choose to route SS7 signaling
                information (~, ISUP, TCAP) from CLEC's signaling network to
                another CLC's signaling network via PACIFIC's signaling network
                for the purpose of signaling call processing and network
                information between CLEC and the other CLC's network, whether or
                not PACIFIC has a direct-traffic trunk to the terminating
                address, provided that CLEC furnishes PACIFIC with:

                1.      the destination point codes of all the CLC switches to
                        which it wishes to send transit signaling;

                2.      the identity of the STPs in PACIFIC's network in which
                        each DPC will be translated;

                3.      the identity of the STPs in the other signaling network
                        to which such transit signaling will be sent; and

                4.      a letter from the other party authorizing PACIFIC to
                        send such signaling messages.

        CLEC agrees to pay the rates for Transit Signaling as specified in
Attachment 8.

        G.      Either Party may opt at any time to terminate (i.e., overflow)
                to the other Party some or all local exchange traffic and
                intraLATA toll traffic originating on its network, together with
                Switched Access traffic, via Feature Group D or Feature Group B
                Switched Access Service. Either Party may otherwise purchase
                these Switched Access Services from the other Party subject to
                the rates, terms and conditions specified in its standard
                intrastate access tariffs.



                                       5
<PAGE>   301

                                                                   Attachment 18

        H.      When the Tandem-Level Terminating option is chosen, each Party
                shall deliver to the other Party over the Local Interconnection
                Trunk Group(s) only such traffic which is destined for those
                publicly dialable NPA NXX codes served by end offices that
                directly subtend the Access Tandem or to those LECs, CLCs and
                Wireless Service Providers that directly subtend the Access
                Tandem. When a LATA-Wide Terminating Access option is chosen,
                CLEC may route Local Interconnection traffic to a PACIFIC Access
                Tandem destined for any NXX in the LATA.

        I.      Unless otherwise agreed to, each Party shall deliver all traffic
                destined to terminate at either Party's end office or tandem in
                accordance with the serving arrangements defined in the Local
                Exchange Routing Guide ("LERG").

        J.      Where the Parties deliver over the Local Interconnection Trunk
                Group miscellaneous calls (i.e., time, weather, NPA-555,
                California 900, Mass Calling Codes) destined for each other,
                the'! shall deliver such traffic in accordance with the serving
                arrangements defined in the LERG.

        K.      Nil codes (e.g., 411, 611 and 911) shall not be sent between
                CLEC's and PACIFIC's network over the Local Interconnection
                Trunk Groups.

        L.      Maintenance of Service.

                1.      A Maintenance of Service charge, as specified below
                        (N.3], applies whenever either Party requests the
                        dispatch of the other Party's personnel for the purpose
                        of performing maintenance activity on the
                        interconnection trunks, and any of the following
                        conditions exist:

                        a)      No trouble is found :n the interconnection
                                trunks; or

                        b)      The trouble condition results from equipment,
                                facilities or systems not provided by the Party
                                whose personnel were dispatched; or

                        c)      Trouble clearance did not otherwise require a
                                dispatch and, upon dispatch requested for repair
                                verification, the interconnection trunk does not
                                exceed Maintenance Limits.

                2.      If a Maintenance of Service initial charge has been
                        applied and trouble is subsequently found in the
                        facilities of the Party whose personnel were dispatched,
                        the charge will be canceled.

                3.      Billing for Maintenance of Service is based on each
                        half-hour or fraction thereof expended to perform the
                        work requested. The time worked is categorized and
                        billed at one of the following three rates:

                        a)      basic time;



                                       6
<PAGE>   302

                                                                   Attachment 18

                        b)      overtime; or

                        c)      premium time

                        As defined for billing by PACIFIC in PACIFIC's revised
                        Schedule Cal. P.U.C. Tariff No. 175-T, Section 13 and in
                        CLEC's Exchange tariff.

II.     THIRD-PARTY TRAFFIC

        A.      PACIFIC shall terminate traffic from third-party LECs, CLCs, or
                wireless service providers ("WSPs") delivered to PACIFIC's
                network through an CLEC tandem. Prior to the routing of such
                traffic, the Parties agree to negotiate the issues of network
                capacity and forecasting caused by such terminations. The
                Parties shall conduct such negotiations in good faith and shall
                not unreasonably withhold consent to the routing of such
                traffic.

        B.      PACIFIC shall complete traffic delivered from CLEC destined to
                third-party LECs, CLCs or WSPs in the LATA. PACIFIC shall have
                no responsibility to ensure that any third-party LEC, CLC or WSP
                will accept such traffic.

        C.      PACIFIC shall accept, from any third-party LEC, CLC, or WSP in
                the LATA, traffic destined for an CLEC end office subtending the
                relevant PACIFIC tandem, or a LEC, CLC or WSP subtending CLEC's
                central office if PACIFIC has a provision in ~n interconnection
                agreement with such LEC, CLC or WSP permitting such an
                arrangement.

III.    COMPENSATION FOR CALL TERMINATION

        A.      In all cases, resale lines (whether purchased by CLEC or a third
                party) in PACIFIC's switches will be treated in the same manner
                as PACIFIC's end user customers for the purposes of call
                termination charges.

        B.      For calls that originate from or terminate to an CLEC LSNE,
                bound for or terminated from a third party LEC, the Parties
                agree that PACIFIC shall make arrangements directly with that
                third party for any compensation owed in connection with such
                calls on CLEC's behalf.

        C.      PACIFIC agrees to bill any facilities-based third party referred
                to in B, above, unless, after thirty (30) days' notice in
                writing to PACIFIC, CLEC requests otherwise. To compensate
                PACIFIC for this service, CLEC agrees to pay $.005 (one-half
                cent) per message.

        D.      For calls that originate from a facilities-based third party and
                terminate to an CLEC LSNE, PACIFIC will compensate CLEC on
                behalf of that third party. For calls that terminate to a
                facilities-based third party from an CLEC LSNE, 



                                       7
<PAGE>   303

                                                                   Attachment 18

                PACIFIC has agreed to charge CLEC as if the call terminated in
                PACIFIC's network, using PACIFIC's rates as described below. In
                the event CLEC elects not to use PACIFIC's billing service
                described in C, above, CLEC shall deal directly with third
                parties regarding compensation for call termination.

        E.      The following compensation terms shall apply in all cases where
                CLEC purchases PACIFIC's LSNE:

                1)      For Local intra-switch calls where CLEC has purchased
                        PACIFIC's LSNE, the Parties agree to impose no call
                        termination charges on each other. Where the call is:

                        (a)     Originated by CLEC's end user customer and
                                completed to a PACIFIC customer:

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                        (b)     Originated by CLEC's end user customer and
                                completed to the customer of a third party
                                carrier (not affiliated with CLEC) using
                                PACIFIC's LSNE:

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                        (c)     Originated by CLEC's end user customer and
                                completed to another of CLEC's end user
                                customers using PACIFIC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                        (d)     Originated by a PACIFIC customer and terminated
                                to CLEC's LSNE.

                                -       No Local Switching Capacity charge will
                                        apply.

                        (e)     Originated by the customer of a third party
                                carrier (not affiliated with CLEC) using
                                PACIFIC's LSNE and terminated to CLEC's LSNE.

                                -       No Local Switching Capacity charge will
                                        apply to CLEC. The Local Switching
                                        Capacity charge on the originating end
                                        will be imposed on the third-party
                                        carrier.



                                       8
<PAGE>   304

                                                                   Attachment 18

                2.      For Local inter-switch calls where CLEC has purchased
                        PACIFIC's LSNE, the Parties agree to impose no call
                        termination charges on each other.

                        Unless otherwise specified, PACIFIC's charges will apply
                        to CLEC as described below where the call is:

                        (a)     Originated from CLEC's LSNE and completed to a
                                PACIFIC end user.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge will
                                        apply when CLEC uses PACIFIC's
                                        transport.

                        (b)     Originated from CLEC's LSNE and completed to the
                                LSNE of a third party carrier (not affiliated
                                with CLEC).

                                -       For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge will
                                        apply when CLEC uses PACIFIC's
                                        transport.

                        (c)     Originated from CLEC's LSNE and completed to the
                                interconnected network of a third party carrier
                                (not affiliated with CLEC).

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge will
                                        apply when CLEC uses PACIFIC's
                                        transport, and mileage shall be measured
                                        between the originating office and the
                                        P01 with the third party's network.

                                For call termination:

                                -       Tandem Transit Switching rate

                                -       Local Switching Capacity charge at the
                                        terminating office.

                        (d)     Originated from CLEC's LSNE and completed to
                                CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.



                                       9
<PAGE>   305

                                                                   Attachment 18

                                -       A mileage-based transport charge will
                                        apply when CLEC uses PACIFIC's
                                        transport.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                        (e)     Originated by a PACIFIC end user customer and
                                terminated to CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity Charge at the
                                        terminating office.

                        (f)     Originated by a customer of a third-party
                                carrier (not affiliated with CLEC) using
                                PACIFIC's LSNE and terminated to CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                        (g)     Originated by an end-user customer on the
                                interconnected network of a third-party carrier
                                (not affiliated with CLEC) and terminated to
                                CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       (For call termination:) CLEC charges to
                                        Pacific, PACIFIC's Local Switching
                                        Capacity charge at the terminating
                                        office.

                3.      For intraLATA toll calls where CLEC has purchased
                        PACIFIC's LSNE, charges per Attachment 8 shall apply as
                        follows:

                        (a)     Originated by CLEC's end-user customer and
                                completed to a PACIFIC end user customer.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge between
                                        the two offices will apply when CLEC
                                        uses PACIFIC's transport.

                                Switched access charges, per PACIFIC'S Schedule
                                Cal. P.U.C. Tariff No. 175-T ("Switched Access
                                Charges"), shall apply as follows:

                                -       NIC

                                For call termination: at the terminating office



                                       10
<PAGE>   306

                                                                   Attachment 18

                                -       Local Switching

                                -       NIC

                        (b)     Originated by CLEC's end-user customer and
                                completed to the customer of a third-party
                                carrier (not affiliated with CLEC) using
                                PACIFIC's LSNE in a distant end office.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge between
                                        the two offices will apply when CLEC
                                        uses PACIFIC's transport.

                                -       NIC at the originating office

                                -       (For call termination:) Local Switching
                                        Capacity charge at the terminating
                                        office per Attachment 8.

                        (c)     Originated by CLEC's end-user customer and
                                completed to the network of third-party carrier
                                (not affiliated with CLEC) interconnected with
                                PACIFIC's network.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge will
                                        apply when CLEC uses PACIFIC's
                                        transport, and mileage shall be measured
                                        between the originating office and the
                                        P01 with the third party's network.

                                -       Tandem Transit Rate

                                Switched Access charges apply as follows:

                                -       NIC at the originating office

                                -       (For call termination: Switched Access
                                        Charges:

                                -       Local Switching

                                -       NIC at the terminating office

                                -       Tandem Switching (if charged by the
                                        third party)]



                                       11
<PAGE>   307

                                                                   Attachment 18


                        (d)     Originated by CLEC's end-user customer and
                                completed to another of CLEC's customers being
                                served through PACIFIC's LSNE in a distant
                                office.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       A mileage-based transport charge between
                                        the two offices will apply when CLEC
                                        uses PACIFIC's transport.

                                -       NIC at the originating office

                                -       NIC at the terminating office

                                -       Local Switching Capacity charge at the
                                        terminating office.

                        (e)     Originated by a PACIFIC customer and terminated
                                to CLEC's end-user customer.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       NIC at the terminating office

                                -       (For call termination: ) CLEC charges to
                                        PACIFIC, PACIFIC's Switched Access
                                        Charges at the terminating office.

                                -       Local switching

                                -       NIC

                        (f)     Originated by the customer of a third-party
                                carrier (not affiliated with CLEC) using
                                PACIFIC's LSNE in a distant end office and
                                terminated to CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       NIC at the terminating office

                                -       (For call termination:) CLEC will charge
                                        PACIFIC Local Switching Capacity per
                                        Attachment 8 at the terminating office.



                                       12
<PAGE>   308

                                                                   Attachment 18

                        (g)     Originated by a customer on the network of a
                                third-party carrier (not affiliated with CLEC)
                                interconnected with PACIFIC's network and
                                terminated to CLEC's LSNE.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       NIC at the terminating office

                                -       (For call termination): CLEC will charge
                                        to Pacific, PACIFIC's Switched Access
                                        Charges:

                                        -       Local Switching

                                        -       NIC at the terminating office

                4.      For intrastate Switched Access calls where CLEC is using
                        PACIFIC's LSNE for calls originated from or terminated
                        to an IXC for completion:

                        (a)     For calls originated from CLEC's end-user
                                customer to CLEC's own IXC switch (or that of an
                                affiliate) for completion.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       PACIFIC and CLEC will charge CLEC's IXC
                                        affiliate appropriate Switched Access
                                        elements on a meet point basis per
                                        Attachment 13.

                        (b)     For calls originated from CLEC's end-user
                                customer to an IXC's switch not affiliated with
                                CLEC.

                                For use of the local switch: Local Switching
                                Capacity charge at the originating office.

                                -       PACIFIC and CLEC shall charge the I?(C
                                        for originating Switched Access on a
                                        meet-point basis per Attachment 13 of
                                        this Agreement.

                                -       NIC at the originating office

                        (c)     For calls terminating to CLEC's end-user
                                customer from CLEC's own IXC switch (or that of
                                an affiliate) for completion.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.



                                       13
<PAGE>   309

                                                                   Attachment 18

                                -       PACIFIC and CLEC shall charge CLEC's IXC
                                        (affiliate) appropriate Switched Access
                                        elements on a meet point basis per
                                        Attachment 13 of this Agreement.

                                -       NIC at the terminating office

                        (d)     For calls terminating to CLEC's end-user
                                customer from an IXC switch not affiliated with
                                CLEC.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       PACIFIC and CLEC shall charge the IXC
                                        terminating Switched Access elements on
                                        a meet point basis per Attachment 13 of
                                        this Agreement.

                                -       NIC at the terminating office

                5.      For interstate Switched Access calls where CLEC is using
                        PACIFIC's LSNE for calls originated from or terminated
                        to an IXC for completion:

                        (a)     For calls originated from CLEC's end-user
                                customer to CLEC's own IXC switch (or that of an
                                affiliate) for completion.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       PACIFIC and CLEC shall charge CLEC's IXC
                                        (affiliate) appropriate Switched Access
                                        elements on a meet-point basis per
                                        Attachment 13 of this Agreement.

                                -       Carrier Common Line Charge ("CCLC") at
                                        the originating office

                                -       RIC at the originating office

                        (b)     For calls originated from CLEC's end-user
                                customer to an IXC's switch not affiliated with
                                CLEC.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        originating office.

                                -       PACIFIC and CLEC shall charge the IXC
                                        for originating Switched Access on a
                                        meet-point basis per Attachment 13 of
                                        this Agreement.

                                       14
<PAGE>   310

                                                                   Attachment 18

                                -       Carrier Common Line Charge ("CCLC") at
                                        the originating office

                                -       RIC at the originating office

                        (c)     For calls terminating to CLEC's end-user
                                customer from CLEC's own IXC switch (or that of
                                an affiliate) for completion.

                                -       (For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       PACIFIC and CLEC shall charge the CLEC's
                                        IXC (affiliate) appropriate Switched
                                        Access elements on a meet point basis
                                        per Attachment 13.

                                -       Carrier Common Line Charge ("CCLC") at
                                        the terminating office

                                -       RIC at the terminating office

                        (d)     For calls terminating to CLEC's end-user
                                customer from an IXC switch not affiliated with
                                CLEC.

                                -       For use of the local switch:) Local
                                        Switching Capacity charge at the
                                        terminating office.

                                -       PACIFIC and CLEC shall charge the IXC
                                        for terminating Switched Access on a
                                        meet-point basis per Attachment 13 of
                                        this Agreement.

                                -       Carrier Common Line Charge ("CCLC") at
                                        the terminating office

                                -       RIC at the terminating office

        F.      The following terms apply where CLEC and PACIFIC interconnect
                using their own networks, pursuant to Section I of this
                Attachment.

                1.      The following call termination rates shall apply for
                        intraLATA traffic terminated from CLEC to PACIFIC or
                        from PACIFIC to CLEC. CLEC and PACIFIC agree to the
                        mutual exchange of Local Calls without explicit
                        compensation ("bill and keep") where traffic flows
                        between CLEC and PACIFIC are in balance, as defined in
                        (a), below. Where such traffic is not in balance, CLEC
                        and PACIFIC agree to call termination at the rates set
                        out in (c), below, for that portion of the traffic that
                        is out of balance.



                                       15
<PAGE>   311

                                                                   Attachment 18

                        (a)     The Parties will measure Local Call traffic
                                between them and will use such measures to
                                determine the balance of traffic between them
                                and the compensation due, if any. The Parties
                                will make measurements and report the results to
                                each other on a calendar-quarter basis (i.e.,
                                January-March, April-June, July-September,
                                October-December). Each Party will be
                                responsible for the measurement of its
                                originating traffic transmitted to the other.
                                The Parties will undertake traffic measurements
                                on a LATA-Wide basis in each LATA where the
                                Parties interconnect. The Parties will report
                                measurements to each other no later than the end
                                of the month following the completion of the
                                quarter. The provisions of this Section and of
                                (b) and (c), below, will not apply until the
                                first full calendar quarter after the effective
                                date of this Agreement. The reported
                                measurements will determine the requirement for
                                payments, if any, for the subsequent full
                                calendar quarter. In determining whether any
                                amount for call terminations owing under this
                                section, neither Party shall be obliged to pay
                                the other unless, on a LATA-Wide basis, the net
                                usage differential (i.e., the difference between
                                the respective Parties' usage levels, calculated
                                by subtracting the lower total number of minutes
                                of use in a quarter from the higher total
                                number) exceeds the following percentages of the
                                total volume of local traffic exchanged between
                                the Parties in the LATA:

                                (i)     The applicable percentage for 0 to
                                        2,000,000 minutes of use will be 10%;

                                (ii)    The applicable percentage for 2,000,001
                                        through 5,000,000 minutes of use will be
                                        5%;

                                (iii)   The applicable percentage for greater
                                        than 5,000,000 minutes of use will be
                                        2%.

                        (b)     The Parties agree that any calculation of net
                                usage differential for local traffic volumes
                                less than the percentages set out immediately
                                above shall demonstrate the Parties' traffic to
                                be in balance for purposes of this Section, The
                                Parties will base calculation under this Section
                                on AMA recordings, which shall be made, where
                                possible, in both the originating and
                                terminating Parties' network. The Parties agree
                                to report to each other on a monthly and
                                quarterly basis the total monthly local minutes
                                of use each terminates to the other Party.

                        (c)     Where the Parties' traffic is not in balance, as
                                determined in the immediately preceding Section,
                                the Party terminating the greater 




                                       16
<PAGE>   312

                                                                   Attachment 18

                                amount of ~ traffic to the other (the
                                "out-of-balance Party") will pay the other
                                Party, for all minutes of use in excess of the
                                number of minutes terminated to it by the other
                                Party, call termination rates based on the
                                following rate elements, per minute of use. The
                                out-of-balance Party will continue to make such
                                payments through the end of the quarter in which
                                it is determined that its traffic is no longer
                                out of balance. Upon such a determination, the
                                payments shall cease until the Parties' traffic
                                is again determined to be out of balance. When
                                traffic exchanged is out of balance, the
                                out-of-balance Party shall pay

                                (i)     Local Switching Capacity,

                                (ii)    Tandem Switching (where used), and

                                (iii)   Common Transport (where used).

                        (d)     Once the Commission has established rates for
                                Local Call transport and termination in its Open
                                Access and Network Architecture Development
                                ("OANAD") proceeding, those rates shall apply in
                                lieu of the above-specified rate elements.

                2.      For Local and intraLATA Toll traffic originated by CLEC
                        (or CLCs subtending its network) to PACIFIC, CLEC agrees
                        to pay PACIFIC the following:

                        (a)     Local calls: Bill and Keep (applicable to all
                                local Zone Usage Measurement ("ZUM") Zone 1,
                                Zone 2 and Zone 3, and Extended Area Service
                                traffic) shall apply unless the Parties' traffic
                                is out of balance per subsection 1(a) of this
                                Section, above. In the latter event, the
                                provisions of Subsection 1(c) of this Section
                                shall apply.

                        (b)     Toll calls: The following rate elements are
                                applicable to intraLATA toll calls, based on the
                                rates in Attachment 8.

                                (1)     The following rate elements from
                                        PACIFIC's Tariff Cal. PUC 1 75-T will
                                        apply when a Toll Call routes over Local
                                        Interconnection Trunk Groups:

                                (a)     For common switched transport: where
                                        PACIFIC's tandem is used:

                                       (i)     Fixed - per minute of use.

                                       (ii)    Variable - per mile per minute of
                                               use. Mileage shall be calculated
                                               based on the 



                                       17
<PAGE>   313

                                                                   Attachment 18

                                               airline miles between the 
                                               Vertical and Horizontal ("V&H") 
                                               coordinates of the P01, and the 
                                               PACIFIC end office or CLC routing
                                               point.

                                       (iii)   Tandem Switching.

                                        (b)     Local switching

                                        (c)     NIC

                                (2)     CLEC will pay two times the Tandem
                                        Switching rate as specified in
                                        Attachment 8 if whenever CLEC elects the
                                        LATA-Wide Terminating Option.

               3.     For Local and intraLATA Toll traffic originated from
                      PACIFIC to CLEC, PACIFIC agrees to pay CLEC the following:

                      (a)    Local calls: Bill and Keep: (applicable to all
                             local Zone Usage Measurement ("ZUM") Zone 1, Zone 2
                             and Zone 3, and Extended Area Service traffic)
                             shall apply unless the Parties' traffic is out of
                             balance per Section Fl(a), above. In the latter
                             event, the provisions of Section F1(c) shall apply.

                      (b)    Toll calls: The following rate elements from
                             PACIFIC's Tariff Cal. PUC 175-T will apply when a
                             toll call routes over Local Interconnection Trunk
                             Groups:

                             (1)    For common switched transport:  
                                    where CLEC's tandem is used:

                                    (i)     Fixed - per minute of use.

                                    (ii)    Variable - per mile per minute of
                                            use. Mileage shall be calculated
                                            based on the airline miles between
                                            the Vertical and Horizontal ("V&H")
                                            coordinates of the P01, and the CLEC
                                            end office or CLC/CLEC routing
                                            point.

                             (2)    Tandem Switching

                             (3)    Local switching

                             (4)    NIC



                                       18
<PAGE>   314

                                                                   Attachment 18

        G.      Tandem Transit Switching rate: Tandem Transit Switching rate
                shall be equal to the Tandem Switching rate plus two times the
                Common Transport Fixed rate element as specified in Attachment
                8.

                1.      The transit rate provides for Access Tandem switching
                        when either Party uses the other Party's Access Tandem
                        to originate a CLC call to a third party such as another
                        LEC, CLC, or Wireless Service Provider.

                2.      If either Party receives a call through the other
                        Party's Access Tandem that originates from another LEC,
                        CLC or wireless service Provider, the Party receiving
                        the transited call will not charge the other Party any
                        rate element for this call regardless of whether the
                        call is local or toll. The Parties will establish
                        appropriate billing relationships directly with the
                        Wireless Service Provider, other CLC or LEC.

        H.      For intraLATA Toll Free Service calls where such service is
                provided by one of the Parties, the compensation set forth in
                Section III. above, shall be charged by the Party originating
                the call, rather than the Party terminating the call. This
                includes originating charges listed in Section III as well as a
                database query charge as specified in PACIFIC's intrastate
                access tariff or CLEC's local exchange tariff.

        I.      Each Party will calculate terminating interconnection minutes of
                use based on standard Automatic Message Accounting ("AMA")
                recordings made within each Party's network. These recordings
                are the basis for each Party to generate bills to the other
                Party. Either Party may request the exchange of originating EMR
                records in order to bill the other Party terminating minutes of
                use. The Parties agree to cooperate in the exchange of the
                records if so requested.

        J.      Measurement of minutes of use over Local Interconnection Trunk
                Groups shall be in actual conversation seconds. The total
                conversation seconds over each individual Local Interconnection
                Trunk Group will be totaled for the entire monthly bill and then
                rounded to the next whole minute.

        K.      Each Party will provide the other, within fifteen (15) calendar
                days after the end of each calendar quarter, a usage report with
                the following information regarding traffic it sent to (i.e.,
                terminated over) the Local Interconnection Trunk arrangements:

                1.      Total traffic volume described in terms of minutes and
                        messages and by call type (local, toll and other)
                        terminated to each other over the Local Interconnection
                        Trunk Groups; and

                2.      Percent Local Usage (PLU)



                                       19
<PAGE>   315

                                                                   Attachment 18

        L.      CLEC will pay the rates for SS7 CCS interconnection as specified
                in Attachment 8. The Parties will exchange TCAP messages to
                facilitate full interoperability of CCS-based features and
                functions, to the extent each carrier offers such features and
                functions to its own end users. All CCS signaling parameters
                will be provided, including CPN. All privacy indicators will be
                honored.

        M.      For 976 or California 900 calls (those 900 NXXs shown in the
                LERG as PACIFIC's 900 NXXs), CLEC shall deliver calls originated
                over CLEC-provided exchange services to the Local
                Interconnection Trunk Groups. The Parties have separately
                reached agreement on the rating and billing of such calls.

IV.     COMPENSATION FOR USE OF LOCAL INTERCONNECTION FACILITIES

        A.      Interconnection facilities include the facilities that connect
                the Parties' respective switching networks.

        B.      The Parties agree that each has an equal obligation to
                interconnect its network infrastructure to the other's network.
                The Parties may decide to own the interconnection facility
                jointly or to provide facilities to deliver traffic to the
                other. If the Parties agree to build the interconnection
                facilities, they will agree on desired capacity and performance
                characteristics and then may bid to install the facilities. The
                Party with the lowest bid will construct the facilities and bill
                the other Party 50% of the construction costs. The constructing
                Party will charge a monthly maintenance charge for maintaining
                the facilities. This charge will be based upon the TELRIC of
                maintaining the facility. (Solely for the purpose of this
                paragraph, TELRIC shall be defined as did the FCC in the First
                Interconnection Order.) !f the Parties decide not to build and
                operate the interconnecting facility jointly, they may choose
                from options 1 or 2 below.

        C.      The Parties agree to the following terms based on consideration
                of the generally balanced use of the Parties' respective
                facilities for interconnection. Such consideration is based on
                relative facility length the capacity provided to each other,
                determined by the comparison of facility deployment behind the
                POIs associated with CLEC collocation arrangements and PACIFIC's
                network. This compensation is contingent on a balanced facility
                interconnection being defined in Appendix A.

                1.      Where the P01 for the Local Interconnection Trunk Group
                        is located other than in the same PACIFIC Wire Center as
                        the PACIFIC switch where the Local Interconnection Trunk
                        Group terminates, CLEC will pay a monthly charge for the
                        PACIFIC-provided facility according to PACIFIC's
                        intrastate access tariff, in addition to any usage rate
                        elements in Section III above. CLEC may, at its option,
                        choose to pay PACIFIC either the applicable PACIFIC
                        tariffed unbundled transport or unbundled interoffice



                                       20
<PAGE>   316

                                                                   Attachment 18

                        facility rates for DS-1 rates for those DS-1(s) used for
                        Local Interconnection Trunks in a DS-3 facility, or pay
                        the applicable tariffed or unbundled interoffice
                        facility rates for DS-3 for each DS-3 facility, used for
                        Local Interconnection Trunks between the Parties.

                2.      Where the P01 for the Local Interconnection Trunk Group
                        is at a collocation arrangement in the same PACIFIC Wire
                        Center as the PACIFIC switch where the Local
                        Interconnection Trunk Group terminates, PACIFIC will pay
                        CLEC a monthly charge for the facility and cross connect
                        equal to one Point Of Termination at DS-1 rates (per
                        DS-1(s) used for Local Interconnection Trunks) or DS-3
                        rates (per DS-3 used for Local Interconnection Trunks)
                        according to Pacific's intrastate access tariff, in
                        addition to any usage rate elements, if any, above.
                        PACIFIC may, at its option, choose to pay either the
                        applicable tariffed DS-1 rates for those DS-1(s) used
                        for Local Interconnection Trunks in a DS-3 facility, or
                        pay the applicable tariffed DS-3 rates for each DS-3
                        facility used for Local Interconnection Trunks between
                        the Parties.

                3.      Where the P01 for the Local Interconnection Trunk Group
                        is at a Mid Span Meet, there shall be no compensation
                        between the Parties for the Local Interconnection
                        facilities used.

V.      MEET-POINT TRUNKING ARRANGEMENTS

        A.      Two-way trunks will be established to enable CLEC and PACIFIC
                jointly to provide Feature Group B and D ("FGB and FGD")
                Switched Access Services via PACIFIC's Access Tandem switch.

        B.      CLEC may use Meet-Point Trunks to send and receive FGB and FGD
                calls from Switched Access customers connected to PACIFIC's
                Access Tandem.

        C.      The Parties will use separate facilities and separate two-way
                trunk groups to each and every PACIFIC Access Tandem under which
                CLEC's NXXs home using DS-1 or DS-3 facilities other than the
                facilities used for Local Interconnection Trunk Groups. Neither
                Party will charge the other any amount for any meet-point
                facilities.

        D.      In the case of Switched Access Services provided through
                PACIFIC's Access Tandem, PACIFIC will not offer blocking
                capability for Switched Access customer traffic delivered to
                PACIFIC's tandem for completion on CLEC's network. The Parties
                understand and agree that Meet-Point Trunking arrangements are
                available and functional only to or from Switched Access
                customers who directly connect with PACIFIC's tandems that CLEC
                subtends in each LATA. In no event will PACIFIC be required to
                route such traffic through more than one tandem for connection
                to or from Switched Access customers. 



                                       21
<PAGE>   317

                                                                   Attachment 18

                PACIFIC shall have no responsibility to ensure that any Switched
                Access customer will accept traffic that CLEC directs to the
                Switched Access customer. PACIFIC also agrees to furnish CLEC a
                list of those IXCs which also interconnect with PACIFIC's
                tandems.

        E.      The Parties will provide CCS to one another, where and as
                available, in conjunction with meet-point two-way trunk groups.
                CLEC may establish CCS interconnections (either directly or
                through a third party), provided such third-party is
                interconnected with PACIFIC pursuant to inter- and intra-state
                access tariffs. The Parties will exchange TCAP messages to
                facilitate full inter-operability of CCS-based features between
                their respective networks, including all CLASS features and
                functions, to the extent each carrier offers such features and
                functions to its own end users. CLEC will provide all CCS
                signaling including, without limitation, Charge Number and
                originating line information ("OLI"). For terminating FGD,
                PACIFIC will pass all CCS signaling including, without
                limitation, CPN if it receives CPN from FGD carriers. All
                privacy indicators will be honored. Where available, network
                signaling information such as Transit Network Selection ("TNS")
                parameter, Carrier Identification Codes ("CIC"), (CCS platform)
                and CICIOZZ information (non-CCS environment) will be provided
                by CLEC wherever such information is needed for call routing or
                billing. The Parties will follow all OBF adopted standards
                pertaining to TNS and CIC/OZZ codes.

        F.      The Parties shall use CCS in conjunction with Meet-Point Trunks,
                provided that they must use multifrequency ("MF") signaling on a
                separate Meet Point Trunk group for originating FGD access to
                Switched Access customers that use MF FGD signaling protocols
                and may use such signaling due to equipment constraints. The
                Parties shall not provide MF and CCS trunk within a DS-1
                facility. They must use a separate DS-1 facility for each
                signaling type.

        G.      CLEC shall deliver all originating Toll Free Service calls for
                which it requests that PACIFIC perform the Service Switching
                Point ("SSP") function (e.g., performs the database query) using
                GR-394 format over the Meet-Point Trunk group. CLEC shall use
                Carrier Code "0110" and Circuit Code of "08" for all such calls.

        H.      When CLEC performs the SSP function for Toll Free service calls,
                and if such calls are destined for an IEC, if CLEC delivers such
                calls to PACIFIC it shall do so over Meet Point Trunk Groups
                using GR-394 format. When CLEC performs the SSP function for
                Toll Free service calls, and if such calls are destined for NXXs
                within the LATA, if CLEC delivers such calls to PACIFIC, it
                shall do so over the Local Interconnection Trunk Group using
                GR-317 format.



                                       22
<PAGE>   318

                                                                   Attachment 18

        I.      Originating Feature Group B calls delivered to PACIFIC's tandem
                shall use GR-317 signaling format unless the associated FGB
                carrier employs GR-394 signaling for its FGB traffic at the
                serving Access Tandem.

VI.     RESPONSIBILITIES OF THE PARTIES

        A.      CLEC and PACIFIC agree to exchange such reports and/or data as
                provided in this Attachment to facilitate the proper billing of
                traffic. Either Party may request an audit of such usage reports
                on no fewer than ten (10) business days written notice and any
                audit shall be accomplished during normal business hours at the
                office of the Party being audited (which shall be San Francisco
                for CLEC and San Francisco for PACIFIC). Such audit must be
                performed by a mutually agreed-to auditor paid for by the Party
                requesting the audit. Such audits shall be requested within six
                months of having received the PLU factor and usage reports from
                the other Party and may not be requested more than twice per
                year.

        B.      CLEC and PACIFIC will review engineering requirements on a
                semi-annual basis and establish guidelines for forecasts of
                trunk and facilities utilization provided under this Attachment.

        C.      CLEC and PACIFIC shall share responsibility for all Control
                Office functions for Local Interconnection Trunks and Trunk
                Groups, and both Parties shall share the overall coordination,
                installation, and maintenance responsibilities for these trunks
                and trunk groups.

        D.      CLEC is responsible for all Control Office functions for Meet
                Point Trunks and Trunk Groups, and shall be responsible for the
                overall coordination, installation, and maintenance
                responsibilities for these trunks and trunk groups.

        E.      CLEC and PACIFIC shall:

                1.      Provide trained personnel with adequate and compatible
                        test equipment to work with each others' technicians.

                2.      Notify each other when there is any change affecting the
                        service requested, including the due date.

                3.      Coordinate and schedule testing activities of their own
                        personnel, and others as applicable, to ensure its
                        interconnection trunks/trunk groups are installed per
                        the interconnection order, meet agreed upon acceptance
                        test requirements, and are placed in service by the due
                        date.

                4.      Perform sectionalization to determine if a trouble is
                        located in its facility or its portion of the
                        interconnection trunks prior to referring the trouble to
                        each other.



                                       23
<PAGE>   319

                                                                   Attachment 18

                5.      Advise each other's Control Office if there is an
                        equipment failure that may affect the interconnection
                        trunks.

                6.      Provide each other with a trouble reporting number that
                        is readily accessible and available 24 hours/7 days a
                        week.

                7.      Provide to each other test-line numbers and access to
                        test lines, including a test-line number that returns
                        answer supervision in each NPA-NXX opened by a Party.

        F.      CLEC and PACIFIC will provide their respective billing contact
                numbers to one another on a reciprocal basis

        G.      The Parties will conduct cooperative testing for the proper
                recording of AMA records in each carrier switch(es) before
                establishing service.

        H.      Prior to the time of interconnection, CLEC will provide to
                PACIFIC CLEC's references or internal standards governing each
                topic in the Bilateral Agreement Template/Worksheet attached as
                Appendix B, for which there is a corresponding PACIFIC
                reference.

VII.    INSTALLATION OF TRUNKS

        Due dates for the installation of Local Interconnection Trunk Groups and
        Meet Point Trunks covered by this Agreement shall be equal to PACIFIC's
        Switched Access intervals.

VIII.   TRUNK FORECASTING

        A.      The Parties shall work towards the development of joint
                forecasting responsibilities for traffic utilization over trunk
                groups. Orders for trunks that exceed forecasted quantities for
                forecasted locations will be accommodated as facilities and/or
                equipment becomes available. The Parties must provide forecast
                information to each other twice a year. The forecasting Service
                Performance Measures and Liquidated Damages (Attachment 17 to
                this Agreement) shall not apply to the following forecasts. The
                semi-annual forecasts shall include:

               1.     Yearly forecasted trunk quantities (which include
                      measurements that reflect actual tandem Local
                      Interconnection and Meet Point Trunk Groups and end office
                      equivalent trunking requirements, whether or not tandem
                      subtending) for a minimum of three (current and plus-i and
                      plus-2) years;

               2.     The use of Common Language Location Identifier, described
                      in Bellcore documents BR 795-100-100 and BR 795400-100
                      and;



                                       24
<PAGE>   320

                                                                   Attachment 18

               3.     A description of major network projects anticipated for
                      the following six months. Major network projects include
                      trunking or network rearrangements, shifts in anticipated
                      traffic patterns, or other activities that are reflected
                      by a significant increase or decrease in trunking demand
                      for the following forecasting period.

        B.      If differences in semi-annual forecasts of the Parties vary by
                more than 48 additional DSO two-way trunks for each Local
                Interconnection Trunk Group, the Parties shall meet to reconcile
                the forecast to within 48 DSO trunks.

        C.     If a trunk group is under 75 percent (75%) of centum call seconds
               capacity on a monthly average basis for each month of any
               six-month period, either Party may request the issuance of an
               order to resize the trunk group, which shall be left with not
               less than 25% excess capacity. In all cases, grade-of-service
               objectives identified in Section IX, following, shall be
               maintained.

        D.     Each Party shall provide a specified point of contact for
               planning, forecasting and trunk servicing purposes.

IX.     GRADE OF SERVICE

        A blocking standard of one half of one percent (.005) during the average
        busy hour, for final trunk groups between the Parties' networks carrying
        Meet-Point traffic shall be maintained. All other final trunk groups
        shall be engineered with a blocking standard of one percent (.01)

X.      LOCAL INTERCONNECTION TRUNK SERVICING

        A.      Orders between the Parties to establish, add, change or
                disconnect trunks shall be processed by use of an
                Interconnection Service Request ("ISR") for CLEC orders to
                PACIFIC or an Access Service Request "ASR" for PACIFIC orders to
                CLEC.

        B.      The Parties will jointly manage the capacity of Local
                Interconnection Trunk Groups. PACIFIC's Circuit Provisioning
                Assignment Center ("CPAC") and CLEC's equivalent center will
                send a Trunk Group Service Request ("TGSR") to the other Party
                to trigger changes to the Local Interconnection Trunk Groups
                based on capacity assessment. Either Party upon receipt of the
                TGSR will issue an ISRIASR to the other Party:

                1.      Within 10 business days after receipt of the TGSR; or

                2.      At any time as a result of either Party's own capacity
                        management assessment, in order to begin the
                        provisioning process.

        C.      Orders that comprise a major project shall be submitted at the
                same time, and their implementation shall be jointly planned and
                coordinated. Major projects are those 



                                       25
<PAGE>   321

                                                                   Attachment 18

        that require the coordination and execution of multiple orders or
        related activities between and among PACIFIC and CLEC work groups
        including, but not limited to, the initial establishment of Local
        Interconnection or Meet Point Trunk Groups and service in an area, NXX
        code moves, re-homes, facility grooming, or network rearrangements.

        D.      The Parties will cooperate to establish separate high-volume
                trunk groups for the completion of calls to high volume
                customers, such as radio contest lines.

        E.      CLEC will be responsible for engineering its network on its side
                of the P01. PACIFIC will be responsible for engineering its
                network on its side of the P01.

XI.     TROUBLE REPORTS

        CLEC and PACIFIC will cooperatively plan and implement coordinated
        repair procedures for the Meet Point and Local Interconnection Trunks
        and facilities to ensure that trouble reports are resolved in a timely
        and appropriate manner consistent with procedures referenced in Section
        VI of this Attachment.

XII.    NETWORK MANAGEMENT

        A.      Protective Controls Either Party may use protective network
                traffic management controls, such as 7-digit and 10-digit code
                gaps, on traffic toward each other's network, when required to
                protect the public switched network from congestion due to
                facility failures, switch congestion or failure, or focused
                overload. CLEC and PACIFIC will immediately notify each other of
                any protective control action planned or executed.

        B.      Expansive Controls Where the capability exists, either Party may
                implement originating or terminating traffic reroutes to relieve
                network congestion temporarily due to failures or abnormal
                calling patterns. Reroutes will not be used to circumvent normal
                trunk servicing. Expansive controls will only be used when the
                Parties mutually agree.

        C.      Mass Calling CLEC and PACIFIC shall cooperate and share
                pre-planning information regarding cross-network call-ins
                expected to generate large or focused temporary increases in
                call volumes.




                                       26
<PAGE>   322



ATTACHMENT 18/APPENDIX A:           POI CHART

CRL NETWORK SERVICES, INC.

<TABLE>
<CAPTION>
CLEC Access Tandem/ End     CLEC Routing Point             POI            Pacific Access Tandem
         Office                                                                 End Office
<S>                         <C>                        <C>                <C>

      SNFCCA86DS0                                      SNFCCA86W05             SNFCCA2143T





</TABLE>


<PAGE>   323



                                  ATTACHMENT 18

                                   APPENDIX B

                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET






<PAGE>   324


                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 2
Worksheet Current As Of:

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)          CLEC Reference(s)             Notes / Status
- --------- ---------------------------------- --------------------------------   ------------------------  ------------------------
<S>       <C>                                <C>                                <C>                       <C>
   1      Internetwork provisioning          CLC Handbook ("HB"), Section
          information and guidelines.        16.5, Provisions of LISA.

                                             CLC Handbook, Appendix F1, CLC
                                             ISR Users' Guide.

                                             Interconnection Agreement
                                             between ____________ and
                                             Pacific,
                                             _______ 1996

   2      SS7 & other critical               CLC Operations Handbook-SS7,
          internetwork compatibility         Section 16.7.3.2 & .3,
          testing.                           Pre-service & Protocol Testing.

                                             CCS Network Interface, Section
                                             6.3, Protocol Compatibility
                                             Testing.

                                             NOF Handbook, Section III, 3G, SS7
                                             Compatibility Testing.

   3      Special Protocol                   CCS Network Interface, Section
          implementation                     2.3, Interface Protocol
          agreements.                        Messages.

                                             TR-246, T1.114 (SCCP) & T1.116
                                             (SCCP); GR-317 and GR-394.

                                             CCS Questionnaire, Section IV, D- 2
                                             Switch Parameters.

</TABLE>


<PAGE>   325

                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 3


                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET


<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)         CLEC Reference(s)             Notes / Status
- --------- ---------------------------------- -------------------------------- ----------------------------- ----------------------
<S>       <C>                                <C>                              <C>                           <C>

   4      Diversity Requirements             CCS Network Interface, Section
                                             4.1, Diversity Definition.

                                             NOF Handbook, Section III, 2D,
                                             Link Responsibilities -
                                             Diversity.

   5      Installation, maintenance          CLC Operations Handbook-LISA,
          guidelines and                     Section 16.6.2,
          responsibilities.                  Responsibilities.
                           

                                             CLC Operations Handbook-SS7,
                                             Section 16.7.2,
                                             Responsibilities



   6      Network security                   CLC Operations Handbook-LISA,
          requirements.                      Section 16.6.11 & .12; i
                                             (Emergency & Fraud).

   7      Performance standards              LISA Interface Specification,
          and service level                  Section 4, Performance.
          agreements.

   8      Specific versions/issues of        CCS Network Interface, Section
          protocol or interface              1.4, Related Documents.
          specification.

   9      Maintenance procedures,            CLC Operations Handbook-LISA,
          including trouble reporting,       Section 16.6.4, Maintenance
          status, etc.

                                             CLC Operations Handbook-SS7,
                                             Section 16.7.4, Maintenance

</TABLE>



<PAGE>   326

                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 4


                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)               CLEC Reference(s)        Notes / Status
- --------- ---------------------------------- --------------------------------        -------------------      ------------------
<S>       <C>                                <C>                                     <C>                      <C>

   10     Internetwork trouble               CLC Operations HB-LISA, Section
          resolution and escalation          16.6.4 & .6, Sectionalization;
          procedures.                        Escalations.
                                             CLC Operations HB-557, Section
                                             16.7.4 & .6, Sectionalization;
                                             Escalations.

                                             Interconnection Agreement between
                                             ____________ and Pacific, _______
                                             1996.

   11     In-depth root cause                SI. 131 - Customer Service Quality
          analysis of significant            Failure Report (Analysis).
          failures.

   12     Explicit forecasting               CLC HB, Appendix C,
          information re: direct and         Interconnection Forecasts.
          subtending traffic.

   13     Explicit expectations              CLC Operations Handbook-557,
          regarding interoperability         Section 16.7.3.3 & .4,
          testing.                           Protocol/Acceptance Tests.

                                             CCS Network Interface, Section
                                             6.3, Protocol Compatibility
                                             Testing.

                                             CLC Operations Handbook-LISA,
                                             Section 16.6.3.3 Acceptance
                                             Tests.
</TABLE>



<PAGE>   327

                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 5


                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)               CLEC Reference(s)             Notes / Status
- --------- ---------------------------------- --------------------------------        -------------------           --------------
<S>       <C>                                <C>                                     <C>                           <C>

   14     Network management                 CLC Operations HB-LISA, Section
                                             16.6.2.5, Network Management
                                             Guidelines.

                                             NOF Handbook, Section VI,
                                             Network Management Guidelines.

                                             Interconnection Agreement
                                             between _________ and Pacific,
                                             _________ 1996

   15                                        CLC Operations Handbook - LISA
                                             (all sections).

                                             CLC Operations Handbook - SS7 (all
                                             sections).


   16     Routing and screening              LISA Interface Specification,
          administration.                    Section 2.2, Routing &
                                             Screening.

                                             CCS Network Interface, Section
                                             2.2, Routing & Screening
                                             (MTP/SCCP).

                                             Interconnection Agreement between
                                             ____________ and Pacific, ______
                                             1996.

   17     Synchronization design             CLC Operations Handbook-SS7,
          and company-wide                   Section 16.7.3.5, Synchronization.
          coordinator(s).
</TABLE>




<PAGE>   328

                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 6

                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET


<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)          CLEC Reference(s)             Notes / Status
- --------- ---------------------------------- --------------------------------   -------------------------     --------------
<S>       <C>                                <C>                                <C>                           <C>

   18     Performance                        LISA Interface Specification,
          requirements.                      Section 4, Performance.

                                             CCS Network Interface,
                                             Section 5, Performance.

   19     Responsibility assignment          CLC Operations Handbook - LISA
          (testing, control, etc.).          (throughout)

                                             CLC Operations Handbook - SS7
                                             (throughout)
                                             Interconnection Agreement between
                                             ____________ and Pacific, _______
                                             1996.
                                             
   20     Information sharing for            CLC Oprs HB-LISA, Section
          analysis and problem               16.6.4.3 & 16.6.5 Sectionalization
          identification.                    & Intercarrier Testing.

                                             NOF Handbook, Section VII,
                                             Information Sharing.

</TABLE>



<PAGE>   329


                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 7


                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)               CLEC Reference(s)        Notes / Status
- --------- ---------------------------------- --------------------------------        ---------------------    ------------------
<S>       <C>                                <C>                                     <C>                      <C>

   21     Network transition and             CLC Operations Handbook-LISA,
          service rearrangement              Section 16.6.3.7, Rearrangements.
          management.
                                             CLC Operations HB-SS7, Section
                                             16.7.3.9, Signaling Link
                                             Rearrangements.

                                             CCS Questionnaire, Section
                                             III, 2
                                             Trunk Conversion
                                             Considerations.

   22     Calling Party Number               CLC HB-LISA, Section 16.5.6,
          privacy management.                Prerequisites, Limitations &
                                             Restrictions.

                                             Interconnection Agreement between
                                             ____________ and Pacific, _______
                                             1996.

   23     Traffic engineering design         Interconnection Agreement between
          criteria and capacity              ____________ and Pacific, _______
          management                         1996.

</TABLE>



<PAGE>   330


                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 8


                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)               CLEC Reference(s)        Notes / Status
- --------- ---------------------------------- --------------------------------        ----------------------   ---------------
<S>       <C>                                <C>                                     <C>                      <C>

   24     Tones and                          CLC Operations HB-LISA, Section
          announcements for                  16.6.9.4, Tones and
          unsuccessful call                  Announcements.
          attempts.                          
                                             CCS Network Interface, Section
                                             3.4, Tones and Announcements.

                                             NOF Handbook, Section III, 
                                             Pg 17, Tones and Announcements

   25     Mutual aid agreements(s).          CLC Handbook, Section 48,
                                             Emergency Preparedness.

                                             Agreement between BCCs for
                                             Nat'I Security Emergency
                                             Preparedness.

                                             Mutual Aid Agreement Among IEC
                                             and LEC Carriers in California.

   26     Emergency                          Emergency preparedness &
          communications plan.               Response Program, Tab 4,
                                             Communications

                                             NOF Handbook, Section III, Pg 16,
                                             Emergency Communications.

   27     Billing records data
          exchange
</TABLE>




<PAGE>   331

                                                      ATTACHMENT 18 - APPENDIX B
                                                                          Page 9



                     BILATERAL AGREEMENT TEMPLATE/WORKSHEET

<TABLE>
<CAPTION>
          Topic                              Pacific Bell Reference(s)          CLEC Reference(s)             Notes / Status
- --------- ---------------------------------- --------------------------------   -----------------------       ---------------
<S>       <C>                                <C>                                <C>                           <C>

   28     Pre-cutover internetwork           CCS Network Interface, Section
          trunk testing.                     6.3, Protocol Compatibility
                                             Testing.

                                             CLC Operations HB-LISA, Section
                                             16.6.3.2 & .3,
                                             Pre-Service/Acceptance Tests.

                                             CLC Operations HB-SS7, Section
                                             16.7.3.4 & .5,
                                             Protocol/Acceptance Tests
</TABLE>



<PAGE>   1
                                                                   EXHIBIT 10.13


                            MASTER SERVICES AGREEMENT

This AGREEMENT is made this day of between GST - TELECOM CALIFORNIA Inc.
(GST - TELECOM CALIFORNIA) and the undersigned person.

WHEREAS, GST - TELECOM CALIFORNIA provides telecommunications services which
Customer desires to purchase as set forth herein.

Now therefore it is agreed as follows:

1. TARIFFS - GST - TELECOM CALIFORNIA Tariff No 1 (governing interstate
Services) on file with the Federal Communications Commission, and Tariff
Decision No. 94-04-001 (governing intrastate services) on file with the
California Public Utility are hereby incorporated into this Agreement by this
reference. Any conflict between the terms and conditions detailed in this
Agreement and those detailed in the appropriate tariff shall be resolved in
favor of the tariff.

2. SERVICES - during the term of this Agreement. GST -TELECOM CALIFORNIA will
provide Customer with the specific services as identified on the service
order(s) attached hereto and made a part hereof. GST - TELECOM CALIFORNIA shall
provide customer with capacity on a "take or pay basis, i.e. regardless of use
by customer.

3. TERM - the term of this Agreement shall begin as of the date first set forth
above end shall terminate upon the termination of the latest Service Order
issued under the Agreement. However, GST - TELECOM CALIFORNIA may terminate this
agreement or suspend services hereunder at any time upon: (a) any failure of
Customer to pay any amounts as provided in this Agreement, (b) any breach by
Customer of any material provision of this Agreement or any law, rule, or
regulation governing the services provided hereunder, (c) any insolvency.
bankruptcy, assignment for the benefit of creditors. appointment of trustee or
receiver of similar event with respect to Customer; (d) any governmental
prohibition or required alteration of the services to be provided hereunder. Any
termination shall not relieve Customer of obligation to pay any charges incurred
hereunder prior to such termination.

4. CUSTOMER CANCELLATION - If Customer cancels the service before the term of
the Agreement is complete, and for reasons other than non-performance or
Customer's lack of appropriation of funds for services by the appropriate state
authority noted in attached Service Order(s), then Customer is responsible for
maximum termination charges up to the remaining balance of the contract.

5. PAYMENTS - During the term, Customer shall pay GST -TELECOM CALIFORNIA for
the services as set forth In the attached Service Order(s). GST - TELECOM
CALIFORNIA shall not increase such amounts for payments during any given Service
Order period for those services included in that particular Service Order. but
thereafter GST - TELECOM CALIFORNIA may Increase such amounts upon 30 day's
prior written notice. All taxes, fees, and governmental charges Imposed on the
service provided hereunder shall be paid by Customer in addition to any other
amounts owing. Normal service charges shall be invoiced monthly in advance. All
amounts owed by Customer hereunder shall be paid within 30 days of invoice date.
GST - TELECOM CALIFORNIA reserves the right to charge interest on all
outstanding balances over 30 days at 1.5% per month.

6. SERVICE CALL CHARGES - GST - TELECOM CALIFORNIA may change Customer for
service calls (except as necessitated by a failure of GST TELECOM CALIFORNIA) at
the rates generally charged by GST -TELECOM CALIFORNIA to its customers. If
requested by Customer. GST - TELECOM CALIFORNIA will provide up to two (2)
flours per service agreement of free consultation and on site troubleshooting
service to Customers subscribing to service at, speeds. between 1.544 Mbps and
46 Mbps end up to four (4) hours of free consultation and on site
troubleshooting services to Customers subscribing to service at speeds at or
greater than 45 Mbps. Additional consultation services are available at GST -
TELECOM CALIFORNIA'S prevailing rates.

- ----------------

Certain portions of this document in the price information in service orders
have been omitted and filed separately with the Securities and Exchange
Commission based on a request for confidential treatment with respect to the
omitted portions.


<PAGE>   2

7. EQUIPMENT CHANGES - GST - TELECOM CALIFORNIA may substitute, change, or
rearrange any equipment, facility or system used in providing Services at any
time and from time to time, but shall not thereby alter the technical parameters
of the service provided hereunder.

8. WRITTEN CONSENT FOR EQUIPMENT CHANGES - Customer shall not cause or allow any
facility or equipment of GST - TELECOM CALIFORNIA'S to be rearranged. moved.
disconnected. or repaired without GST - TELECOM CALIFORNIA's prior written
consent. Customer shell not create or allow any liens or other encumbrances to
be placed on any GST - TELECOM CALIFORNIA equipment, facility, or system arising
from any act, transaction or circumstances relating to Customer.

9. SERVICE RELOCATION - If Customer elects to relocate or otherwise change the
place of services alter commencement of the installation of facilities, Customer
shall pay any additional installation charges for both the original and new
location.

10. SERVICE INTERRUPTION - GST - TELECOM CALIFORNIA will grant credit allowance
for service Interruption calculated and credited in 15-minute increments. A
service interruption will be deemed to have occurred only if service becomes
unusable to Customer as a result of failure of GST - TELECOM CALIFORNIA's
facility, equipment or personnel used to provide the service in question, and
only where the interruption is not the result of: (I) the negligent or
intentional acts of Customer or its agents; (II) the failure or malfunction of
non GST - TELECOM CALIFORNIA equipment or systems; (III) a service interruption
caused by service maintenance, alteration or implementation requested by the
Customer. Such credits will be granted only if: (a) Customer affords GST -
TELECOM CALIFORNIA full and free access to Customer's premises to make
appropriate repairs, maintenance, testing, etc.; and (b) Customer does not
continue to use the service on an impaired basis. The foregoing states
Customer's sole remedy for service interruption under the Agreement and in no
event shall GST- TELECOM CALIFORNIA be liable for any direct, indirect,
incidental, consequential punitive or special damages to Customer as result of
any GST - TELECOM CALIFORNIA service, equipment, facilities, person or system
provided or utilized under this agreement.

11. WARRANTY - Other than as expressed in this agreement, there are no
warranties, representations or agreements, expressed or implied either in fact
or by operation of law, statutory or otherwise, including warranties of
merchantibility of fitness for a particular purpose, except those expressly set
forth herein.

12. ACCESS - Customer shall allow GST - TELECOM CALIFORNIA continuous access and
right-of-way to Customer's premises to the extent reasonably determined by GST -
TELECOM CALIFORNIA to be appropriate to the provision and maintenance of
services, equipment, facilities and Systems hereunder. Customer shall furnish
GST -TELECOM CALIFORNIA, at no charge, such equipment space and electrical power
as is reasonably determined by GST - TELECOM CALIFORNIA to be required and
suitable to render services hereunder.

13. EQUIPMENT DAMAGE - Customer shall be liable for any damage to GST - TELECOM
CALIFORNIA equipment, facility, and system which is caused by: (a) negligent or
willful acts or omissions of Customer, or (b) malfunction or failure of any
equipment or facility provided by Customer or its agents, employees or
suppliers.

14. ASSIGNMENT - Neither party may assign this Agreement without the written
consent of the other party, except that GST - TELECOM CALIFORNIA or Customer may
assign its rights and/or obligations hereunder; (a) to any subsidiary, parent
company or affiliate of GST - TELECOM CALIFORNIA or Customer, (b) pursuant to
any sale or transfer of substantially all the business of GST - PACIFIC
LIGHTWAVE or Customer, (c) pursuant to any financing, merger or reorganization
of GST - TELECOM CALIFORNIA or Customer.

15. LICENSE - No licenses, express or implied, is granted by GST - TELECOM
CALIFORNIA pursuant to this Agreement.

16. STATE GOVERNANCE - This Agreement shall be governed by the state of
California.




                                       2
<PAGE>   3

17. PROPRIETARY INFORMATION - Each party agrees to maintain in strict confidence
all plans. designs, drawings, trade secrets, and other proprietary information
of other party which is disclosed pursuant to this Agreement.

18. MULTIPLE CUSTOMERS - If this Agreement is entered into by more than one
Customer, each is jointly, and severally liable for all agreements. convenants,
and obligations herein.

                            CUSTOMER RESPONSIBILITIES

19. DISCONNECTION OF EXISTING SERVICE - If appropriate, Customer must arrange
the disconnection of this existing access service. The requested date of
disconnection will be determined by the new service Installation date. Customer
will receive a firm order commitment date from GST - TELECOM CALIFORNIA. It is
recommended that the disconnection date be scheduled 3 days or more after the
firm order commitment date.

20. LONG DISTANCE PORTION - As a provider of special access service, GST -
TELECOM CALIFORNIA will meet its obligation to provide Customer with the
requested service when it is requested, GST - TELECOM CALIFORNIA will coordinate
service with the long distance provider. However, Customer is responsible for
notifying the long distance carrier of its intention to obtain service from GST
- -TELECOM CALIFORNIA and placing any required orders with them. If requested, GST
- - TELECOM CALIFORNIA will coordinate the service for the Customer for a charge
which will be billed to Customer at GST - TELECOM CALIFORNIA's prevailing rate.

21. TELEPHONE EQUIPMENT PREP - To ensure a timely and error-free installation,
GST - TELECOM CALIFORNIA will perform a site survey to visually inspect the
physical location where GST - TELECOM CALIFORNIA will interconnect with
Customer's phone equipment. If this is a co-location and GST - TELECOM
CALIFORNIA places equipment at Customer's premise, GST - TELECOM CALIFORNIA will
locate it where customer requires it. GST- TELECOM CALIFORNIA is responsible at
Customers sole expense for wiring to a mutually agreed Network interface. If GST
- - TELECOM CALIFORNIA already has a presence in Customer's building, GST -
TELECOM CALIFORNIA will cable to the Network interface Customer designates. GST
- -TELECOM CALIFORNIA will coordinate and acquire any necessary conduit runs in
support of this application. Customer will provide necessary technical
information such as signaling, levels, and any special conditions.

22. CREDIT POLICY - GST - TELECOM CALIFORNIA may conduct a credit verification
of a new Customer. If GST -TELECOM CALIFORNIA is unable to obtain the necessary
information through normal channels, GST - TELECOM CALIFORNIA may request a
financial statement or a service deposit from Customer prior to processing the
order. If Customer's credit history is listed under a parent or other company
name, please specify: _____________. Customer must provide acceptable credit
Information to GST -TELECOM CALIFORNIA or a deposit may be required.

23. INSTALLATION DAY - GST - TELECOM CALIFORNIA terminal tests the quality of
every service before it is accepted. On installation day, a Customer technician
responsible for telephone equipment and/or transmission links must be available.
The Customer's technician should notify GST - TELECOM CALIFORNIA upon arrival
and remain at the location until necessary hook-ups and test calls are
completed. A Customer representative must verity completion of this work.

24. BILLING - GST - TELECOM CALIFORNIA generates invoices every month that
reflect the charge for service in advance. All invoices are issued on or about
the first day of the month. The first invoice shows the monthly charges
pro-rated for the first month of service. The pro-rated invoice is sent
approximately one week from activation date. It will also show the applicable
installation charge(s) and fees. If Customer cancels order prior to
installation, there will be an administrative charge reflecting the costs
already incurred by GST - TELECOM CALIFORNIA to process Customer's order. Other
charges may include a physical move charge which is applicable when either the
origination or termination end of the circuit is moved. This change applies only
to the relocated end.


                                       3
<PAGE>   4
                                   ----------

25. ENTIRE AGREEMENT - This agreement together with the attached Service Order,
all public tariffs incorporated hereunto by reference sets forth the full
agreement of the parties with respect to the subject matter hereof, and
supersedes any prior agreement or understanding. If any provision hereof is held
by a Court to be invalid, void, or unenforceable, the remainder of this
Agreement shall nevertheless remain unimpaired and in effect. To the extent of a
conflict between any provision of this agreement and the attached Service Order,
the provision of this Agreement shall control.

       /s/ Philip Burkhart/VP
- -------------------------------------
Customer Signature/Title

        CRL Network Services
- -------------------------------------
Company Name


- -------------------------------------
GST - TELECOM CALIFORNIA Signature/Title


- -------------------------------------
Date

COMPLETE THE FOLLOWING ONLY IF CUSTOMER OWNS OR CONTROLS THE BUILDING IN WHICH
SERVICE IS TO BE PROVIDED:

__________________________________ represents that it is the owner of the
building described as _________________, and hereby grants Greenstar
Telecommunications a license to reasonably use these premises for the
installation, operation, removal, repair end maintenance of the facilities
required to serve _________________ and other tenants according to this
Agreement. GST - TELECOM CALIFORNIA shall have the right to (1) install grid
work for cable attachment; (2) use openings passing through the building zone or
horizontally above the ceilings and hallways where space is available; (3) bore
through the floors of the building in the vertical riser spaces, electrical or
phone closets to install, operate, maintain, remove, replace, and repair wires,
cable, conduit, waveguides and related equipment and material inside the riser
spaces. In and through the building through the telephone cable entrance; (4)
access the cable vault and those cables, conduits or openings exiting the
building to the street or alley vault.; (5) take whatever reasonable actions are
necessary to maintain continuity of services to ________________
____________________ also agrees to assist GST - TELECOM CALIFORNIA in the
location of riser space and obtaining consent from other tenants, if necessary.
The parties hereby agree to be bound by this additional term.


- -------------------------------------
Customer Signature/Title


- -------------------------------------
Company Name


- -------------------------------------
GST - TELECOM CALIFORNIA Signature/Title


- -------------------------------------
Date



                                      4
<PAGE>   5
[GST TELECOM LOGO]         FiberLinx Private Line Service Order

<TABLE>
<CAPTION>
Order Date     Desired Due Date    Facility type      Order Tracking #    Work Order #    Circuit Type
<S>            <C>                 <C>                <C>                 <C>             <C>
                                  Existing GST Fiber                                      (DS-3)
                                  (Type 1)
</TABLE>


                        CUSTOMER INFORMATION
Company Name

CRL Network Services
- -------------------------------------------------------------
Street Number               Direction          Building Name

1                
- -------------------------------------------------------------
Street Name                             Room         Floor

Kearney
- -------------------------------------------------------------
City                                    State        Zip

San Francisco                           CA           94108
- -------------------------------------------------------------
Grantor                                 Title

- -------------------------------------------------------------
Telephone                               Fax

- -------------------------------------------------------------
E-mail Address                          Alternate Contact

- -------------------------------------------------------------
Type of Customer

      End User
      ------------------------------

- -------------------------------------------------------------


                        BILLING INFORMATION

Bill To

CRL Network Services
- ------------------------------------------------------------------
Address                                  Building Name

1 Kearny Street
- ------------------------------------------------------------------
Address                                  Room         Floor

- ------------------------------------------------------------------
City                                     State        Zip

San Francisco                            CA           94108
- ------------------------------------------------------------------
Billing Contact                          Title

- ------------------------------------------------------------------
Telephone                                Fax

- ------------------------------------------------------------------
                                         Lead Sources

                                         [ ] ACM  [ ] Inside Sales
- ------------------------------------------------------------------
Main Billing Telephone #       Deposit Amount (if received):

- ------------------------------------------------------------------
Type of Circuit        Intrastate
                      ----------------

- ------------------------------------------------------------------


<TABLE>
<CAPTION>
              GST CHARGES                                   MRC                               NRC

             DESCRIPTION                         PRICE        QTY     TOTAL         PRICE        QTY     TOTAL
- ---------------------------------------------   -------------------------------    -------------------------------
<S>                                              <C>           <C>   <C>            <C>           <C>   <C>
FiberLinx 45 (DS-3)                              $[**]         1     $[**]          $   --        1     $        --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $                                  $         
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $       --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $       --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $       --
- ---------------------------------------------   -------------------------------    -------------------------------
Options
- --------------------------------------------- 

                                                TOTAL CHARGES        $     [**]                         $
</TABLE>

LOCATION SUMMARY

Service for:

<TABLE>
                COMPANY NAME       CITY           STATE
<S>             <C>               <C>             <C>
Location 1      CRL             San Francisco     CA    100 CALIFORNIA, SUITE B6

Location 2      CRL             Los Angeles       CA    624 S. GRAND, SUITE 1710  
</TABLE>            

- --------------------------------------------------------------------------------
By signing below, you, the customer, understand and agree that the services
listed above will be provided by GST pursuant to the rates, terms and 
conditions in GST's applicable tariffs/price lists on file with the FCC or 
state commission, as may be amended from time to time. The provisions of the 
applicable tariffs/price lists, including limitations on GST's liabilities, 
shall exclusively govern your and GST's obligations and liabilities with 
respect to the service and options you have selected. Any terms or applicable 
tariffs/price lists shall have no binding effect. Consistent with GST's 
applicable tariffs/price lists, charges may apply if you cancel, modify or 
defer an order.
- --------------------------------------------------------------------------------

*For customers ordering services for which no tariff or price list applies: 
the GST Master Service Agreement (MSA) governs the terms and conditions under 
which GST provides the services you have selected. This Service Order will not 
become effective unless and until you have signed the MSA.

<TABLE>
<S>                                       <C>                         <C>
                                                 5 Years                   PHILIP BURKHART
- --------------------------------------   -----------------------     ----------------------------
GST General Sales Manager's Signature     Contract Term - Years           Customer Signature 

                                                                           Philip Burkhart
- --------------------------------------   -----------------------     ----------------------------
             Printed Name                Signature Date for MSA              Printed Name      
                                                                             VP   8/31/98    
- --------------------------------------                               ----------------------------                      
             Title & Date                                                    Title & Date       
                                                                    
- --------------------------------------                                 -----------------------
          Account Executive                     Telephone
      
          -----------------------------------        ---------------------------------
</TABLE>

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.
<PAGE>   6
[GST TELECOM LOGO]         FiberLinx Private Line Service Order

<TABLE>
<CAPTION>
Order Date     Desired Due Date    Facility type      Order Tracking #    Work Order #    Circuit Type
<S>            <C>                 <C>                <C>                 <C>             <C>
                                  Existing GST Fiber                                      (DS-3)
                                  (Type 1)
</TABLE>


                        CUSTOMER INFORMATION
Company Name

CRL Network Services
- -------------------------------------------------------------
Street Number               Direction          Building Name

1 Kearney Street
- -------------------------------------------------------------
Street Name                             Room         Floor

Kearney
- -------------------------------------------------------------
City                                    State        Zip

San Francisco                           CA           94108
- -------------------------------------------------------------
Grantor                                 Title

- -------------------------------------------------------------
Telephone                               Fax

- -------------------------------------------------------------
E-mail Address                          Alternate Contact

- -------------------------------------------------------------
Type of Customer

      End User
      ------------------------------

- -------------------------------------------------------------


                        BILLING INFORMATION

Bill To

CRL Network Services
- ------------------------------------------------------------------
Address                                  Building Name

1 Kearny Street
- ------------------------------------------------------------------
Address                                  Room         Floor

- ------------------------------------------------------------------
City                                     State        Zip

San Francisco                            CA           94108
- ------------------------------------------------------------------
Billing Contact                          Title

- ------------------------------------------------------------------
Telephone                                Fax

- ------------------------------------------------------------------
                                         Lead Sources

                                         [ ] ACM  [ ] Inside Sales
- ------------------------------------------------------------------
Main Billing Telephone #       Deposit Amount (if received)

- ------------------------------------------------------------------
Type of Circuit        Intrastate
                      ----------------

- ------------------------------------------------------------------


<TABLE>
<CAPTION>
              GST CHARGES                                   MRC                               NRC

             DESCRIPTION                         PRICE        QTY     TOTAL         PRICE        QTY     TOTAL
- ---------------------------------------------   -------------------------------    -------------------------------
<S>                                              <C>           <C>   <C>            <C>           <C>   <C>
FiberLinx 45 (DS-3)                              $[**]         1     $[**]          $   --        1     $  --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $                                  $
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $  --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $  --
- ---------------------------------------------   -------------------------------    -------------------------------
                                                                     $       --                         $  --
- ---------------------------------------------   -------------------------------    -------------------------------
Options
- --------------------------------------------- 

                                                TOTAL CHARGES        $     [**]                        $  --
</TABLE>

LOCATION SUMMARY

Service for:

<TABLE>
                COMPANY NAME       CITY           STATE
<S>             <C>               <C>             <C>
Location 1      CRL             Los Angeles       CA    624 S. Grand, Suite 1710

Location 2      CRL             Phoenix           AZ    2600 N. Central, Suite 920
</TABLE>            

- --------------------------------------------------------------------------------
By signing below, you, the customer, understand and agree that the services
listed above will be provided by GST pursuant to the rates, terms and 
conditions in GST's applicable tariffs/price lists on file with the FCC or 
state commission, as may be amended from time to time. The provisions of the 
applicable tariffs/price lists, including limitations on GST's liabilities, 
shall exclusively govern your and GST's obligations and liabilities with 
respect to the service and options you have selected. Any terms or applicable 
tariffs/price lists shall have no binding effect. Consistent with GST's 
applicable tariffs/price lists, charges may apply if you cancel, modify or 
defer an order.
- --------------------------------------------------------------------------------

*For customers ordering services for which no tariff or price list applies: 
the GST Master Services Agreement (MSA) governs the terms and conditions under 
which GST provides the services you have selected. This Service Order will not 
become effective unless and until you have signed the MSA.

<TABLE>
<S>                                       <C>                         <C>
                                                 5 Years                   PHILIP BURKHART
- --------------------------------------   -----------------------     ----------------------------
GST General Sales Manager's Signature     Contract Term - Years           Customer Signature 

                                                                           Philip Burkhart
- --------------------------------------   -----------------------     ----------------------------
             Printed Name                Signature Date for MSA              Printed Name      
                                                                             VP   8/31/98    
- --------------------------------------                               ----------------------------                      
             Title & Date                                                    Title & Date       
                                                                    
- --------------------------------------                                 -----------------------
          Account Executive                     Telephone
      
          -----------------------------------        ---------------------------------
</TABLE>

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.

<PAGE>   1
                                                                   EXHIBIT 10.15



                        REIMBURSABLE SPACE ACT AGREEMENT
                                     BETWEEN
                          THE NATIONAL AERONAUTICS AND
                              SPACE ADMINISTRATION
                              AMES RESEARCH CENTER
                         AND CRL NETWORK SERVICES, INC.







           FOR THE PURPOSE OF CONNECTING TO THE AMES INTERNET EXCHANGE















Certain portions of this document in the price information in Section 8.1 have
been omitted and filed separately with the Securities and Exchange Commission
based on a request for confidential treatment with respect to the omitted
portions.
<PAGE>   2

                                   TABLE OF CONTENTS
<TABLE>
<S>            <C>                                                                           <C>
         1.0   AUTHORITY.....................................................................1

         2.0   PURPOSE.......................................................................1

         3.0   RESPONSIBILITIES..............................................................2

               3.1    PARTICIPANT RESPONSIBILITIES...........................................2
               3.2    NASA RESPONSIBILITIES..................................................3

         4.0   SCHEDULE AND MILESTONES.......................................................5

         5.0   KEY PERSONNEL.................................................................6

         6.0   DATA RIGHTS...................................................................6

               6.1    Definitions............................................................6
               6.2    General................................................................7
               6.3    Participant Produced Data..............................................7
               6.4    Data First Produced by NASA............................................7
               6.5    Data Disclosing an Invention...........................................8
               6.6    Copyright..............................................................8
               6.7    Oral and Visual Information............................................8
               6.8    Disclaimer of Liability................................................9
               6.9    Computer Software......................................................9
               6.10   Publications...........................................................9

         7.0   PATENT AND INVENTION RIGHTS..................................................10

               7.1    Definition............................................................10
               7.2    General...............................................................10
               7.3    NASA Inventions.......................................................10
               7.4    NASA Contractor Inventions............................................10
               7.5    Joint Inventions with Participant.....................................10
               7.6    Licenses to be Reserved in Participant's License
                      (March-in-Rights).....................................................11
               7.7    Protection of Reported Inventions.....................................11
               7.8    Patent Filing Responsibilities and Costs..............................11

         8.0   ADDITIONAL PROVISIONS........................................................12

               8.1    FINANCIAL OBLIGATIONS.................................................12
               8.2    NO PARTNERSHIP........................................................13
               8.3    GOVERNING LAW.........................................................13
               8.4    LIABILITY AND RISK OF LOSS............................................13
               8.5    INDEPENDENCE OF CONTRACTS.............................................14
</TABLE>

                                       i
<PAGE>   3
<TABLE>
<S>                   <C>                                                                   <C>

               8.6    ASSIGNMENT/AMENDMENT..................................................14
               8.7    USE OF NASA NAME AND INITIALS.........................................14
               8.8    METRICS...............................................................14
               8.9    RELOCATION............................................................15
               8.10   TERM OF AGREEMENT AND RIGHT TO TERMINATION............................15

         9.0   REFERENCES...................................................................16

         10.0  SIGNATURES...................................................................16
</TABLE>



                                       ii
<PAGE>   4

                        REIMBURSABLE SPACE ACT AGREEMENT
                                     BETWEEN
                THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
                              AMES RESEARCH CENTER
                         AND CRL NETWORK SERVICES, INC.

           FOR THE PURPOSE OF CONNECTING TO THE AMES INTERNET EXCHANGE

1.0     AUTHORITY

        This Reimbursable Space Act Agreement (RSAA) is entered into by CRL
Network Services, Inc. (hereinafter referred t6 as the Participant) with a place
of business at San Francisco, CA, and the NATIONAL AERONAUTICS AND SPACE
ADMINISTRATION, Ames Research Center located at Moffett Field, California
94035-1000 ("NASA"). The legal authority for NASA to enter into this agreement
is found in sections 203(c)(5) and (6) of the Space Act of 1958, 42 USC
Section 2473(c).

2.0     PURPOSE

        This RSAA shall be effected for the purpose of:

               (a)    adding Participant to a unique collocated network
                      interconnect in vivo testbed in which Participants
                      exchange data among their client networks as well as with
                      NASA networks and other cooperating commercial and Federal
                      networks that are similarly attached at this testbed which
                      is known as MAE-West (Metropolitan Area Exchange - West
                      Coast) which is part of the Ames Internet Exchange;

               (b)    facilitating (1) the metering and analysis of internet
                      traffic flows, (2) the study of new algorithms for caching
                      internetwork flows, and (3) the development of new
                      approaches to traffic moderation by aggregating
                      Participants on a common testbed to share in the resulting
                      costs and benefits;

               (c)    providing new technology transmission facilities, either
                      terrestrial or satellite, that stimulate competition and
                      cost moderation as new network capabilities are introduced
                      by Participants; use of such new technology is essential
                      to efficient operation of NASA and other Federal networks;

        The foregoing statements of purpose (a) to (c) support NASA-Ames
Research Centers role as NASA lead center for Information Systems Technology.

        This interconnect testbed shall be located at NASA Ames Research Center
along with associated collocated equipment required to establish network
connectivity. This RSAA will benefit NASA by enhancing the ability of the
NASA-Ames Research Center to meet its 



                                       1
<PAGE>   5

responsibility to provide for a logical extension to the existing Federal
Interconnect Exchange - West Coast facility (FD( - West) that is managed by NASA

        Ames Research Center Information Services Division and is also part of
the Ames Internet Exchange. In attaining this objective, it will ensure that all
costs to the government are offset by fees paid by those Participants connecting
to MAE-West.

        This agreement is for both the network connecting the Participants to
the Internet at MAE-West, a unique collocated interconnect facility located at
NASA-Ames, and for operating a satellite terminal collocated near MAE-West. No
agreement expressed or implied, is hereby made to order or provide communication
services to NASA or the U.S. Government. Both parties will use reasonable
efforts to meet performance provisions under this RSAA.

3.0     RESPONSIBILITIES

        3.1    PARTICIPANT RESPONSIBILITIES

        The Participant will provide the following materials, effort and
information to NASA:

        1.  The Participant shall provide all equipment required to properly
attach its network facilities to the facilities at MAE-West, such as routers,
CSU/DSU's, etc. including all required cabling, and shall provide up to date
configuration drawings to NASA to insure that adequate information is available
for trouble shooting requirements. The Participant shall provide for reasonable
maintenance and support agreements for any of its equipment located at NASA Ames
Research Center and shall ensure that any third party personnel requiring access
to their equipment are cognizant of all terms and conditions in this Agreement,
including the requirement of U.S. citizenship.

        2.  The Participant shall provide required telecommunications
transmission services such as DS-3 leased lines, ATM facilities, etc. and shall
provide NASA with copies of any related orders for such services when they
occur, to assure coordinated delivery and installation of such services by
NASA's Resident Staff.

        3.  The Participant shall provide out-of-band (OOB) network
management for all active devices such as routers, CSU/DSU's, etc. to minimize
the support required from NASA for emergency trouble shooting of equipment. The
Participant shall provide all required telecommunications links (such as
switched analog voice lines for dialup modems, etc.) to support this OOB
management.

        4.  The Participant shall provide a detailed implementation plan
including configuration, installation, and operation of equipment that is to be
attached to MAE-West, within 30 days of the signature of this Agreement, and the
RSAA must be approved by NASA before any work commences unless waived in writing
by NASA. If the Participant enters separate agreements between itself and
Network Service Providers (peering agreements), Participant shall designate the
names of such Network Service Providers (NSPs) to NASA as part of the
implementation plan.



                                       2
<PAGE>   6

        5.  The Participant shall provide for the decaling (all Participant
property must be decaled) and initial installation of equipment at least one
business week ahead of the scheduled work period. Any subsequent modification by
the Participant at MAE-West shall be requested in writing and scheduled with
NASA at least one business week ahead of the scheduled work period.

        6.  The Participant agrees to comply with all NASA safety and
security requirements, including network alerts and other written advisories,
all required environmental regulations, and the provisions of NASA-Ames Standard
Operating Procedures' as defined in Reference A (see Section 9).

        7.  This agreement may be amended and updated periodically consistent
with the authority listed in Section 8.6 of this document.

        3.2    NASA RESPONSIBILITIES

        NASA will provide the following effort and information to the
Participant:

        1.  NASA will provide the following supplies and services:

               (a)    seismic-braced equipment racks in which to collocate up to
                      M.5 inches (18 rack units) of Participant owned and
                      provided telecommunication equipment, such as a router,
                      CSU/DSU, cabling, modem, etc.; additional rack space must
                      be requested in writing and a new cost recovery agreement
                      must be established and approved; NASA is not committed to
                      providing additional space if it not currently available
                      in building N254;

               (b)    controlled and monitored access to the equipment racks;

               (c)    reliable filtered 110 VAC electric power, dedicated to
                      each rack, with generator backup Uninterruptible Power
                      Supply (UPS); UPS may be taken off the line for short
                      periods for maintenance in which case only commercial
                      power or generator power is available;

               (d)    reliable air conditioning system to insure that collocated
                      equipment operates in a hospitable environment;

               (e)    loan of tools, monitors, and test equipment incidental to
                      trouble shooting;

               (f)    remote monitoring of critical facility systems, e.g.,
                      power, HWAC, security, fire;

               (g)    limited technical support for new installations and
                      configuration changes;

               (h)    arrangement of services by certified electrical contractor
                      to perform necessary power, conduit and seismic brace
                      installation when required of Participant;


                                       3
<PAGE>   7

               (i)    maintenance of an inventory of Participant's decaled
                      equipment and support of their property management system.

        2.  NASA will provide access to related telecommunications carrier
facilities (e.g. Pacific Bell, Metropolitan Fiber Systems, etc.) that are
collocated in the same facility as MAE-West for termination of Participant
provided telecommunications services (e.g., DS-3 leased line facilities, FDDI
fiberoptics, etc.). However, NASA is not responsible for providing said services
themselves nor is it responsible for setting costs for such services except such
costs as accrue to the government.

        3.  NASA will provide access to the MAE-West facilities, currently an
FDDI Ring, and future access to one port on new technology switch when it is
acquired and installed. This switched facility (e.g., a DEC GIGAswitch) will be
operated and managed by NASA 24 hours per day, seven (7) days per week, 52 weeks
per year (24x7x52), and provide reliable, high performance transport of network
traffic between the Participant's equipment and other NSPs that are attached
directly to MAE-West NASA will maintain this configuration and ensure that
changes are adequately coordinated with Participants.

        4.  NASA will provide access to designated staff of the Participant
or their designees for maintenance and trouble shooting of Participant's
equipment Emergency access to equipment located at MAE-West will be provided by
NASA within a two (2) hour period after a request has been made, including
off-hours. NASA will also provide Resident Technician emergency support for
trouble shooting problems with Participant equipment, such as power cycling or
physical resetting of equipment within two (2) hours of a request being made, in
case normal OOB management capabilities cannot provide equivalent functionality.

        Note the existence of access restrictions: all Participant staff,
including third party staff with whom Participant may contract for services,
e.g., maintenance, that are allowed on-site access must be U.S. citizens and
they must obtain prior written consent by NASA to visit the site, either
on-shift or off-shift; no foreign nationals are allowed on-site access. NASA
will escort approved Participant staff or their designees while work is being
performed on-site at NASA Ames Research Center, and will insure proper
identification, documentation and authentication as well as in/out logging.
Off-shift access to Moffett Field will require escort by NASA Resident Staff
through the Main Gate. On-shift access is Monday through Friday, 0700 to 1615
hours.

        5.  NASA will provide monthly traffic statistics of data exchanged
among MAE-West participants only with written consent from NSPs. NASA may
monitor network layer traffic for purposes of Research and Development
consistent with its mission. NASA reserves the right to monitor end user data of
Government agency networks attached to MAE-West to insure appropriate use of
Government network facilities involved with MAE-West.

        6.  NASA will perform the installation and cabling of all of the
Participant's equipment as per the layout that is included in the Participant's
implementation plan. Installation will be performed in accordance with current
standards as set forth in paragraph 9.0 Reference A of this agreement

                                       4
<PAGE>   8

        7.  NASA will provide one business week's notice for normal
maintenance of facility systems.

        8.  NASA will, at its discretion, provide information other than
traffic statistics on NSPs that are connected to FIX-West or MAE-West NASA shall
not accept requests for non-disclosure for any data that are not traffic
statistics or designated as Participant Produced Data in paragraph 6.3 of this
agreement NASA is not responsible for peering agreements among Participants but
will facilitate such agreements whenever it can do so.

4.0     SCHEDULE AND MILESTONES

        The scheduled major milestones are as follows:

A.      Formal request by Participant

B.      Reimbursable Space Act Agreement (RSAA) template issued to Participant
        for markup

C.      Negotiated RSAA completed for approvals

D.      RSAA approved by NASA

F       RSAA approved by Participant

F.      Initial funding (i.e. initial charge plus installment for the first six
        months) as indicated in Section 8.1 of this Agreement transferred to
        NASA

(30 days after the agreement has been signed by the Participant)

G.      Equipment deployed to Ames for installation

        (5 days after initial funding is transferred to NASA by Participant)

H       Connection to MAE-West established, cost recovery begins

        (5 days after initial funding is transferred to NASA by Participant)

I.      Final semiannual installment for second six months due and payable to
        NASA (6 calendar months after initial funding is transferred to NASA by
        Participant)

J.      Semiannual installment for first six months of second year due and
        payable to NASA

        (12 calendar months after initial funding is transferred to NASA by
        Participant)

K.      Annual report and fee adjustment up or down

        (12 calendar months after initial funding is transferred to NASA by
        Participant)

                                       5
<PAGE>   9

        The schedule and milestones for the performance of this Agreement will
be subsequently determined by the parties.

        The above schedule and milestones are estimated based upon the parties'
current understanding of the projected use of facilities and equipment by
Participant, NASA, and other Participants and Federal Agencies. In the event of
changes in NASA's projected usage, the Participant shall be given reasonable
notice of that change, so that the schedule and milestones may be adjusted
accordingly. The parties agree that NASA usage of the exchange facilities and
equipment shall have priority over the usage planned in this Agreement. Should
conflict arise, NASA in its sole discretion shall determine whether to exercise
that priority'.

5.0     KEY PERSONNEL

        The following personnel are designated as the key officials for their
respective party. These key officials are the principal points of contact
between parties in the performance of this Agreement.
<TABLE>
<CAPTION>

NASA Ames                                         CRL Network Services, Inc.

<S>        <C>                                    <C>         <C> 
Name:      William P. Jones                       Name:       James Couch
Title:     External Interface Manager             Title:      President
Address:   M/S 233-17                             Address:    CRL Network Services, Inc.
           NASA Ames Research Center                          One Kearny Street
           Moffett Field, CA  94035-1000                      San Francisco, CA  94108
Tel. No.:  (650) 604-6482                         Tel. No.:   (415) 837-5300
Fax No.:   (650) 604-6999                         Fax No.:    (415) 392-9000
</TABLE>

6.0     DATA RIGHTS

        6.1    DEFINITIONS

        The term "Participant," as used herein, means any non-Government entity
that is a party to this Agreement The rights in data set forth herein are
applicable to any employees, contractors or subcontractors, or other entities
having a fiduciary or contractual relationship with Participant that are
assigned, tasked, or contracted with to perform specified Participant activities
under this Agreement.

        The term "NASA," as used herein, means NASA civil servant employees as
well as contractors, subcontractors, or other entities having a fiduciary or
contractual relationship with NASA that are assigned, tasked, or contracted with
to perform specified NASA activities under this Agreement.

        The term "data," as used herein, means recorded information, regardless
of form, the media on which it may be recorded, or the method of recording. The
term includes, but is not limited to, data of a scientific or technical nature,
computer software and data comprising commercial and financial information.


                                       6
<PAGE>   10

        6.2    GENERAL

        Data exchanged between Government and Participant under this Agreement
shall be exchanged without restriction as to its disclosure, use, or duplication
except as otherwise provided below in this provision.

        6.3    PARTICIPANT PRODUCED DATA

        In the event it is necessary for the Participant to furnish NASA with
data which either existed prior to, was produced outside of, or is first
produced by Participant in carrying out Participant's responsibilities under
this Agreement, and such provided data embodies trade secrets or comprises
commercial or financial information which is privileged or confidential and such
data are so identified with a suitable notice or legend, the data will be
maintained in confidence and disclosed and used by NASA and its contractors
(under suitable protective conditions) only for the purpose of carrying out
NASA's responsibilities under this Agreement. Upon completion of activities
under this Agreement, such data will be disposed of as requested by the
Participant.

        The parties agree that the following are Participant Produced data:

               (a)    list of NSPs at Participant's location, including
                      technical point of contact, telephone numbers and email
                      addresses;

               (b)    list of physical and logical addresses for their portion
                      on MAE-West;

               (c)    customer privacy-protected information such as customers'
                      traffic, lists of customers, or personal information about
                      client employees;

               (d)    implementation plan, and

               (e) configuration change requirements.

        6.4    DATA FIRST PRODUCED BY NASA

        As to data first produced by NASA (or NASA contractors) in carrying out
NASA's responsibilities under this Agreement and data which would embody trade
secrets or would comprise commercial or financial information that is privileged
or confidential if obtained from the Participant, such data will, to the extent
permitted by law, be maintained in confidence and be disclosed and used by NASA,
its contractors and the Participant (under suitable protective conditions) only
for the purpose of carrying out NASA's responsibilities under this Agreement.
Upon completion of activities under this Agreement, Participant shall dispose of
such data as requested by NASA.

        The parties agree that the following are data first produced by NASA:

               (a)    list of NSPs at NASA location, including technical point
                      of contact, telephone numbers and email addresses;

                                       7
<PAGE>   11

               (b)    list of physical and logical addresses on their portion of
                      MAE-West;

               (c)    copies of any reports, charts, graphs, or diagrams which
                      were produced as a result of this Agreement and that
                      reference NASA's name or logo, or EMAIL to NSPs attaching
                      to MAE-West at NASA's location but not customer
                      privacy-protected information such as customer's traffic,
                      lists of customers, or personal information about client
                      employees;

        6.5    DATA DISCLOSING AN INVENTION

        In the event data exchanged between NASA and the Participant disclose an
invention for which patent protection is being considered and the furnishing
party specifically identifies such data, the receiving party agrees to withhold
such data from public disclosure for a reasonable time (presumed to be one year
unless mutually agreed otherwise) in order for patent protection to be obtained.

        6.6    COPYRIGHT

        In the event data are exchanged with a notice indicating that the data
are protected under copyright as published, copyrighted work, the following
paid-up license rights shall inure to the receiving party:

               (a)    If it is indicated on the data that the data existed prior
                      to, or was produced outside of, this Agreement, the
                      receiving party and others acting on its behalf, may
                      reproduce, distribute, and prepare derivative works for
                      the purpose of carrying out the receiving party's
                      responsibilities under this Agreement; and

               (b)    If the furnished data does not contain the indication of
                      (a) above, it will be assumed that the data were produced
                      under this Agreement, and the receiving party and others
                      acting on its behalf, may reproduce, distribute, and
                      prepare derivative works for any of its purposes
                      whatsoever.

        6.7    ORAL AND VISUAL INFORMATION

        If information which the Participant considers to embody trade secrets
or to comprise commercial or financial information which is privileged or
confidential is disclosed orally or visually to NASA, such information must be
reduced to tangible, recorded form (i.e., converted into data as defined
herein), identified and marked with a suitable notice or legend as required by
paragraphs 6.3 and 6.4 above and furnished to NASA within 10 days after such
oral or visual disclosure, or NASA shall have no duty to limit or restrict, and
shall not incur any liability for, any disclosure and use of such information.

        If information which NASA considers to embody trade secrets or to
comprise commercial or financial information which is privileged or confidential
is disclosed orally or visually to the Participant, such information must be
reduced to tangible, recorded form (i.e., converted into 



                                       8
<PAGE>   12

data as defined herein), identified and marked with a suitable notice or legend
as required by paragraphs 6.3 and 6.4 above and furnished to the Participant
within 10 days after such oral or visual disclosure, or the Participant shall
have no duty to limit or restrict, and shall not incur any liability for, any
disclosure and use of such information.

        Not withstanding the above, CRL Network Services, Inc. or the
Government's liability in the event of breach of paragraphs 6.3 through 6.5 will
be limited to the lesser of proven damages or $5,000,000.

        6.8    DISCLAIMER OF LIABILITY

        Notwithstanding the above, neither NASA nor CRL Network Services, Inc.
shall be restricted in, or incur any liability for, the disclosure and use of:

                (a)     data not identified with a suitable notice or legend as
                        set forth in paragraph 6.3 above; nor

                (b)     information contained in any data for which disclosure
                        and use is restricted under paragraphs 6.3 and 6.4
                        above, if such information is or becomes generally known
                        without breach of the above, is known to or is generated
                        by CRL Network Services, Inc. or NASA independently of
                        carrying out CRL Network Services Inc's or NASA's
                        responsibilities under this Agreement, is rightfully
                        received from a third party without restriction, or is
                        included in data which the Participant has, or is
                        required to furnish to the U.S. Government without
                        restriction on disclosure and use.

        6.9    COMPUTER SOFTWARE

        If the Government provides the Participant any Government computer
software pursuant to this Agreement, the Participant agrees not to disclose the
computer software to any third party, to use the computer software for no other
purpose than carrying out the responsibilities of this Agreement, and to return
the computer software and all copies thereof to the Government when the
Agreement is terminated or completed, whichever comes first

        6.10   PUBLICATIONS

        The parties agree to provide each other with an advance information copy
of any manuscript to be released in a journal article, symposium presentation,
or under the NASA scientific and technical report series (described in NMI NHB
2200.2, NASA Scientific and Technical Information Handbook) when the manuscript
utilizes data derived from this Agreement. The information copy shall be sent
sufficiently in advance to afford the recipient(s) time to review the manuscript
and comment thereon before the manuscript is published or presented at a
symposium.


                                       9
<PAGE>   13

7.0     PATENT AND INVENTION RIGHTS

        7.1    DEFINITION

        The term "Participant," as used herein, means any non-Government entity
that is a party to this Agreement. The patent and invention rights set forth
herein are applicable to any employees, contractors or subcontractors, or other
entities having a fiduciary or contractual relationship with Participant that
are assigned, tasked, or contracted with to perform specified Participant
activities under this Agreement.

        7.2    GENERAL

        Title to inventions made (or conceived or first actually reduced to
practice) as a consequence of, or in direct relation to, the performance of
activities under this Agreement will remain with the respective inventing
parties (Participant or NASA), and no patent or invention rights are exchanged
between or granted by such parties under this Agreement except as provided
herein.

        7.3    NASA INVENTIONS

        NASA will use reasonable efforts to report inventions made by NASA
employees as a consequence of, or which bear a direct relation to, the
performance of specified NASA activities under this Agreement and, upon timely
request, will grant the Participant first option to acquire either an exclusive
or partially exclusive, revocable, royalty-bearing license, on terms to be
subsequently negotiated, for any patent application and patents covering such
inventions, and subject to the license reserved in paragraph 7.6 (a) below.

        7.4    NASA CONTRACTOR INVENTIONS

        In the event NASA contractors are tasked to perform work in support of
specified NASA activities under this Agreement and inventions are made by
contractor employees or jointly between NASA employees and contractor employees,
and NASA has the right to acquire or has acquired title to such inventions, NASA
will use reasonable efforts to report such inventions and, upon timely request,
will grant the Participant first option to acquire either an exclusive or
partially exclusive, revocable, royalty-bearing license, on terms to be
subsequently negotiated, for any patent application and patents covering such
inventions, and subject to the license reserved in paragraph 7.6 (b) below.

        7.5    JOINT INVENTIONS WITH PARTICIPANT

        NASA and the Participant will use reasonable efforts to identify and
report to each other inventions made jointly between NASA employees (opound
sterling employees of NASA contractors) and employees of the Participant and,
upon timely request, NASA will grant the Participant first option to acquire
either an exclusive or partially exclusive, revocable, royalty-bearing license
in any undivided interest NASA has the right to acquire or has acquired in such
invention, upon terms to be subsequently negotiated, for any patent application
and patents covering such



                                       10
<PAGE>   14

inventions; or NASA may agree to refrain from exercising its undivided interest
in a manner inconsistent with the Participant's commercial interests and to
cooperate with the Participant in obtaining patent protection on its undivided
interest. Either alternative will be subject to the applicable license or
licenses reserved in paragraph 7.6 below.

        7.6     LICENSES TO BE RESERVED IN PARTICIPANT'S LICENSE
                (MARCH-IN-RIGHTS)

        Any license granted to the Participant pursuant to paragraphs 7.3, 7.4
or 7.5 above will be subject to the reservation of the following licenses:

               (a)    as to inventions made solely by, or jointly with, NASA
                      employees, the irrevocable, royalty-free right of the
                      Government of the United States to practice and have
                      practiced the invention on behalf of the United States and
                      on behalf of any foreign Government or international
                      organization pursuant to any existing or future treaty or
                      agreement with the United States; and

               (b)    as to inventions made solely by, or jointly with, NASA
                      contractors, rights in the Government of the United States
                      as set forth in (a) above, as well as the revocable,
                      non-exclusive, royalty-free license in the contractor as
                      set forth in 14 CFR 1245.108.

        7.7    PROTECTION OF REPORTED INVENTIONS

        When an invention is reported and disclosed between the parties in
accordance with the provisions of this clause, the receiving party agrees to
withhold such report or disclosure from public access for a reasonable time
(presumed to be one year unless mutually agreed otherwise) in order for a patent
application to be filed.

        7.8    PATENT FILING RESPONSIBILITIES AND COSTS

        The invention and patent rights set forth herein shall apply to any
patent applications filed and patents obtained in any country, and each party is
responsible for its own costs of preparing, prosecuting, issuing and maintaining
patents covering sole inventions in any country; except that NASA and the
Participant may, upon the reporting of any invention (sole or joint) or in any
license option granted, mutually agree otherwise for any country as to patent
application costs, and maintenance responsibilities and costs. As to any
invention made jointly between NASA employees (or employees of a NASA
contractor) and employees of the Participant and for which the Participant files
a patent application, the Participant agrees to include the following statement
therein:

        The invention described herein may be manufactured and used by or for
the United States Government for United States Government purposes without the
payment of royalties thereon or therefor.


                                       11
<PAGE>   15

8.0     ADDITIONAL PROVISIONS

        8.1    FINANCIAL OBLIGATIONS

        There will be a transfer of funds or other financial obligation from the
Participant, CRL Network Services, Inc. to NASA in connection with this
Agreement. The terms, conditions, and schedule of payment are as follows:

        CRL Network Services, Inc. shall reimburse NASA promptly for use of its
facilities and staff in support of Participant's access to MAE-West:

               one connection to the FDDI Ring with a reserved port on the
               switch at the recurring rate of [**] per month, with an initial
               charge of [**], to cover initial equipment and installation
               support, and to cover initial procurement and deployment of the
               transmission facility in FY 98;

        CRL Network Services, Inc. shall submit to:

                NASA Ames Research Center
                Collection Agent
                MS 203-18 (CRL Network Services, Inc.)
                Moffett Field, CA 94035

payment in the form of a check to be written payable to the National Aeronautics
and Space Administration. The initial charge of [**] and the installment for
the first six months (total of [**]) shall be submitted within 30 days of the
date of this Agreement The remaining installments of [**] each are due and
payable at the beginning of each six month period. A schedule of payments will
be determined upon execution of this Agreement. Participant acknowledges its
obligation and ability to satisfy the foregoing schedule of payments.

        A fee adjustment to cost recovery related to 8.1 shall be made annually
by NASA in writing to each Participant, near the close of each year's operation.
This adjustment may be up or down, reflecting actual costs, and is to apply to
the subsequent year 5 cost recovery requirement for each Participant attached to
MAE-West The adjustment, if an increase, shall not exceed 10% of the prior month
charge.

        Special activities in support of access to MAE-West that may be required
as a result of future amendments to this Agreement or of the CRL Network
Services, Inc. implementation plan shall not exceed an annual cost of [**] and a
total cost under this Agreement of [**].

        All activities under or pursuant to this Agreement are subject to the
availability of appropriated funds. Nothing in this Agreement commits the United
States Congress to appropriate funds for this effort, and no provision herein
shall be interpreted to require obligation 

- ----------------
[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and 
     Exchange Commission.

                                       12
<PAGE>   16

or payment of funds in violation of the Anti-Deficiency Act, 31 USC 1341. If
funds are not available, this Agreement may be terminated by NASA, as provided
in paragraph 8.10(b) below.

        8.2    NO PARTNERSHIP

        This Agreement is not intended to constitute, create, give effect to or
otherwise recognize a joint venture, partnership, formal business organization,
or agency agreement of any kind, and the rights and obligations of the parties
shall be only those expressly set forth herein. Both parties will remain
independent contractors, each responsible for its own employees, costs, risks,
liabilities, and expenses incurred in the performance of this Agreement Each
party bears the cost of discharging its own responsibilities except as expressly
set forth in this agreement

        8.3    GOVERNING LAW

        NASA will perform this Agreement consistent with obligations, laws,
published policy, and regulations of the United States. This Agreement shall be
governed by the federal laws of the United States.

        8.4    LIABILITY AND RISK OF LOSS

        Neither NASA nor the Participant will make any claim against the other:

                (a)     with respect to injury or death of its own, its
                        contractors' or its subcontractors employees,

                (b)     with respect to damage to its own, its contractors' or
                        its subcontractors' property

arising out of or connected with the performance of this Agreement, whether such
injury, death or damage arises through negligence or otherwise.

                    Limitation of Liability to Direct Damages

        To the extent that a risk of damages or loss is not dealt with expressly
in this Agreement, such party's liability to the other party, whether or not
arising as the result of alleged breach of this Agreement, shall be limited to
direct damages only, and shall not include any loss of revenue or profits or
other indirect or consequential damages.

        As operator of MAE-West and FIX-West which form the interconnecting
testbed for the various Participants, NASA reserves the right to notify
Participant by electronic means, by FAX or by telephone of any action to be
taken to disconnect the Participant's equipment Such action will be taken if
said equipment is known to be causing interference of data flows between other
connected Participants. The equipment will be reconnected only after appropriate
repairs are made or after mutually agreeable alternative routing of traffic is
effected. This action by NASA will be carried out without liability for direct
damages, or for any loss of revenue or profits or other consequential damages
which result NASA will make a good faith effort to assist the Participant in
restoring its services in an expeditious manner.


                                       13
<PAGE>   17

        8.5    INDEPENDENCE OF CONTRACTS

        The parties agree that this Agreement is independent of any other
contract between the United States Government and the Participant By
participating in this Agreement, NASA makes no assurances to the Participant or
others as to the performance of the objects tested in NASA facilities or other
test objects, and relieves the Participant of none of its obligations under any
other contract with the Government This Agreement does not constitute NASA's
endorsement of any test results, resulting designs, hardware, or other matters.

        8.6    ASSIGNMENT/AMENDMENT

                (a)     This Agreement may be modified at any time by a written
                        document signed by the officials authorized to bind the
                        parties.

                (b)     Neither this Agreement nor any interest arising under it
                        will be assigned by either party without the express
                        written consent of the officials authorized to bind the
                        parties.

        8.7    USE OF NASA NAME AND INITIALS

        The Participant agrees to submit all promotional and advertising
material which uses the NASA name or initials to NASA for its approval prior to
publication including any reference that is contained in internet work
information servers currently known as world wide web servers or the like.
Approval by NASA shall be based on applicable law (e.g., 42 USC Sections
2459(b), 2472(a) and 2473(c)(1); and 14 CFR Section 1221.100 et seq.) and policy
governing the use of the words "National Aeronautics and Space Administration"
and the letters "NASA."

        NASA agrees to submit to CRL Network Services, Inc. for its approval all
promotional and advertising material which uses the CRL Network Services, Inc.
name or initials prior to publication, including any reference that is contained
in internet work information servers currently known as world wide web servers
or similar.

        8.8    METRICS

        The Participant will supply quarterly data to the Ames Commercial
Technology Office on: jobs created, jobs retained, net sales increases, new
products or services, productivity gains, patents, royalties, and licenses
arising from the activities under this Agreement NASA Ames Research Center
recognizes the sensitive nature of these data and will protect them consistent
with the provisions found in this document. Proprietary data will remain
proprietary to the Participant and are exempt from release to the extent
permissible under the Freedom of Information Act (FOIA).

        Point of Contact for Commercial Metrics Reporting is:

               Commercial Metrics Program Leader
               NASA-Ames Research Center


                                       14
<PAGE>   18

               Commercial Technology Office, Code DK
               Mailstop 202A-3
               Moffett Field, CA 93035-1000
               (650) 604-1919
               (650) 604-1592 FAX

        8.9    RELOCATION

        NASA reserves the right to relocate the functions associated within
building N254 to another area of Moffett Field (i.e. rehoming); only relocation
costs of NASA equipment and facilities will be born by NASA. All costs
associated with rehoming of the Participant's circuits and relocation of
Participant's equipment and facilities will be born by the Participant
Abandonment of lands by Participant must include removal of all equipment and
facilities including buried or below-surface structures and conduits, as well as
removal of any toxic waste or hazardous materials. Notice of the requirement to
relocate functions within building N254 will be given at least one year prior to
such action by NASA.

        8.10   TERM OF AGREEMENT AND RIGHT TO TERMINATION

                (a)     This Agreement becomes effective on the date of the
                        latest signature of the parties. The term of this RSAA
                        will be two (2) years beginning on the date of the last
                        signature appearing below, or as provided for in
                        paragraph 8.10(b) below. This Agreement may be extended
                        for an additional one year period by modification, as
                        provided for in paragraph 8.6 (a) above.

                (b)     Either party may terminate this Agreement at any time
                        before the date provided in paragraph 8.10(a) above by
                        written notice to the other party sixty (60) days before
                        the desired date of termination. The terminating party
                        will not incur any liability to the other party for
                        terminating this Agreement under any provision of
                        paragraph 8.10. NASA shall refund any money paid by CRL
                        Network Services, Inc. for months beyond the termination
                        date of this Agreement.

                (c)     All parties will use reasonable efforts to participate
                        in the efforts stated in this Agreement NASA's ability
                        to participate in this Agreement is subject to the
                        availability of appropriated funds. If appropriated
                        funds are not available, NASA may terminate this RSAA as
                        provided in paragraph 8.10 (b).

9.0     REFERENCES

A       ARC External Interface Standard operating Procedures as modified June
        1998. A copy of this document may be obtained from the External
        Interface Manager.

B       Ames Safety Manual, chapters 1, 2, 4, 5, 6, 11, 18, 19, 20, 24, 25, 27;
        homepage address - http:/dq.arc.nasa.gov/.

                                       15
<PAGE>   19

C       Ames Environmental Handbook, AHB 8800.3, chapter 1; homepage address
        -http:/dq.arc.nasa.gov/.

        Ames Management Instruction 8800.4; homepage address
- -http:/dq.arc.nasa.gov/.

        NASA Environmental Management, NPD 8800.16; homepage address
- -http:/dq.arc.nasa.gov

10.0    SIGNATURES

        IN WITNESS WHEREOF, each party has caused this Agreement to be executed
in duplicate originals by its duly authorized representative on the dates
indicated below.

NATIONAL AERONAUTICS AND CRL NETWORK SERVICES, INC. SPACE ADMINISTRATION

BY:                                             BY:   /S/    Phillip Burkhart
   ----------------------------------------        ---------------------------

Henry McDonald, Director                        Phillip Burkhart
Ames Research Center                            Vice President
MOFFETT FIELD, CA  94035-1000                   One Kearny Street
Tel. No.  (650) 604-5411                        San Francisco, CA  94108
                                                Tel. No.  (415) 837-5300

DATE:                                           DATE:  July 16, 1998
     --------------------------------------



                                       16


<PAGE>   1
                                                                   EXHIBIT 10.16

                                SERVICE AGREEMENT

        This Agreement is made as of April 22, 1996 between IXC Carrier, Inc.,
formerly known as "Communications Transmission Group, Inc.", a Nevada
corporation ("Lessor"), 5000 Plaza on the Lake, Suite 200, Austin, Texas 78746,
and CRL Network Services, a California Corporation ("Lessee"), One Kearny
Street, Suite 1450, San Francisco, California 94108.

                                   BACKGROUND

        This Agreement is made with reference to the following facts:

        A. Lessee and IXC are parties to that Certain Digital Service Agreement
dated as of July 13, 1994.

        B. The parties desire to terminate the Prior Agreement pursuant to the
terms set forth below and include the existing service and corresponding
termination liabilities into this Agreement.

        1.     SCOPE AND RATES.

               (a) Lessor shall use its best efforts (considering the needs of
its other customers) to provide Service for which a Purchase Order has been
accepted. The rates for Service are set forth in Exhibit D, unless otherwise
specified in the applicable Purchase Order. Lessee may also order the services
listed in Exhibit B, subject to availability.

               (b) Lessee may reconfigure on-net DS-1's into a on-net DS-3 with
no penalty and a new one (1) year term starts upon completion of
reconfiguration. if reconfiguration results in a revenue reduction, such
reduction will be billed as "Undesignated Billing" until replaced. Upon
conversion to a full DS-3, Lessee agrees that the DS-3 hand off in both cities
will be at the 45 Mbps level. The hand off in either city may be at the
individual DS-l level through a Multiplex provided by Lessor at the rates in
Exhibit B hereunder or such multiplex may be provided by Lessee in a rack space
provided by Lessor at rates in Exhibit B hereunder. Lessee may also reconfigure
on-net DS-1's or DS-3's after three (3) months as long as one of the original
cities remains the same, and the monthly billing is equal to or greater than
that of the reconfigured service. If the monthly billing is not equal to or
greater than the reconfigured service, the difference will be billed as
"Undesignated Billing" until replaced. Costs for reconfiguration are listed in
Exhibit B hereunder.
_________________

Certain portions of this document in the price information in (i) Section 1(c)
and 1(d), (ii) List of Exhibits, (iii) Exhibit B, (iv) Exhibit D, (v) Exhibit
D-1, (vi) Exhibit D-2 and (vii) Exhibit E have been omitted and filed separately
with the Securities and Exchange Commission based on a request for confidential
treatment with respect to the omitted portions.
 


<PAGE>   2

               (c) Lessee and Lessor also agree that Lessee shall be entitled to
certain advance discounts for attainment of the [**] level ("Discount"). In
order to facilitate the computation of such Discount the total amounts shown on
each monthly invoice shall be stated as a Discounted and as an Undiscounted
amount for each service for which a discount is applicable. The rates listed on
Exhibit D are the rates after allowing for such discount. The rates listed on
Exhibit D-l are the Undiscounted rates ("Undiscounted"). If Lessee reaches the
[**] Attainment Level within twenty-four (24) months, Lessee may pay the
Discounted amounts as long as Lessee is in the process of reaching or has
reached the [**] billing level during the first twenty-four (24) months from the
date of this Agreement. Should Lessee fail to reach the [**] Attainment Level
within twenty-four (24) months, Lessee must pay the Undiscounted amounts from
the twenty-fifth (25th) month forward until the [**] billing level is attained
or 2 years, whichever occurs first. Upon attainment of the [**] billing level
Lessor will notify Lessee that the rates on Exhibit D-1 apply and that the [**]
revenue level has a new one (1) year term.

               (d) If Lessee attains the [**] billing level for all services,
all new and renewal service shall be rated at the rates listed on Exhibit D-2.

        2.     PAYMENTS.

               (a) Lessee shall pay Lessor each month within 30 days of the date
of invoice: (i) the monthly lease rate (prorated for any partial month) for each
Available Circuit; and (ii) the charges for other services received. The first
invoice shall be for the first two months; each invoice thereafter shall be for
the following month. If any invoice is not paid when due: (i) a late charge
shall accrue equal to 1-1/2% (or the maximum legal rate, if less) of the unpaid
balance per month; and (ii) Lessor may suspend or terminate the Service.

        3.     TERM.

               (a) The term hereof shall continue through the end of the Circuit
Lease Term which is last to expire, if Service continues thereafter, the
applicable rates will be equal to 120% of the rates hereunder and Service may be
terminated by either party upon 30 days' notice. Lessor shall notify Lessee of
impending Circuit Term Date and Lessee shall have sixty (60) days after the
notification of Term Date to renew before the 120% applies Lessee may terminate
any Circuit upon 90 days' notice; provided that if termination occurs: (i) prior
to the Activation Date, Lessee shall reimburse Lessor for all costs of the
implementation of such Circuit; and (ii) on or after such date, Lessee shall
pay: (A) all charges for Service previously rendered; and (B) the amount due
through the end of the applicable Circuit Lease Term (Lessor shall try to
re-lease such Circuit for such term, refunding to Lessee the amount so
collected, if any). If Lessor: (i) fails to provide Service within six months of
the Requested Service Date; or (ii) fails to cure a 


[**]Pursuant to a request for confidential treatment, price information in this
    document has been omitted and separately filed with the Securities and
    Exchange Commission.

                                       2
<PAGE>   3

material breach hereof within 45 days of notice from Lessee, Lessee may, as its
only remedy, terminate the affected Circuit.

               (b) Revenue for service is committed for the term of the
contract, but service may be reconfigured after three (3) months as reflected in
Section 1(b) of this Agreement.

        4. LIMITS OF LIABILITY. Lessor shall not be liable for any direct,
indirect, reliance, or consequential damages, whether foreseeable or not, or for
any damage to property, loss of profits cost of replacement services, or claims
of customers for service problems caused by any defect, delay in availability,
or failure the Service or by any other cause. In no event shall Lessor be liable
in excess of the aggregate amount it has collected from Lessee hereunder. Lessor
shall give Lessee a credit in accordance with its then current outage policy for
periods in which any Circuit loses continuity and fails to comply with
applicable specifications. Such credit shall be Lessee's sole remedy with
respect to such an event; provided, however, that no such credits shall be
allowed and Lessor shall not be liable for any Service defect from causes
outside its control, including accidents, cable cuts, fires, floods,
emergencies, government regulation, wars, or acts of God. LESSOR DISCLAIMS ALL
EXPRESS AND IMPLIED WARRANTIES RELATING TO SERVICE, INCLUDING BUT NOT LIMITED
TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. LESSEE
HAS NOT RELIED ON ANY REPRESENTATION NOT SET FORTH HEREIN. LESSEE SHALL
INDEMNIFY LESSOR FROM ANY CLAIMS MADE BY ANY LESSEE CUSTOMER.

        5. GENERAL TERMS. This Agreement shall be construed under the laws of
Texas. All notices shall be in writing and shall be deemed given as of the date
of delivery to the addresses set forth above. The waiver of a breach hereof
shall not be construed to be a waiver of any subsequent breach. Lessor may
terminate this Agreement without liability if Lessee becomes bankrupt or
insolvent. Each party may refer any dispute relating hereto to arbitration in
Austin, Texas under the rules of the American Arbitration Association. If any
term hereof is held to be invalid or unenforceable, this Agreement shall be
construed without such invalid or unenforceable term. This Agreement is the
entire agreement between the parties pertaining to the Circuits. This Agreement
may only be modified by an instrument in writing executed by each party. Neither
party may assign this Agreement without the written consent of the other party;
provided, however, that a security interest in this Agreement may be granted by
Lessor to its lenders. The rates hereunder do not include any sales, use or
utility taxes. Lessee shall pay to Lessor any such taxes that Lessor may be
required to collect or pay.

        6. DEFINITIONS. For purposes hereof: "Available" means all necessary
equipment for a Circuit has been installed. "Activation Date" means the date a
Circuit is first made Available to Lessee. "Circuit" means a DS-0, DS-l or DS-3.
"Circuit Lease Term" means the term of a Circuit specified in the applicable
Purchase Order. "Circuit Mileage" means the length of a Circuit specified in the
applicable Purchase Order. "DS-0" means a circuit complying with TR-TSY-000333
"Switched and Special Access Services -Transmission Parameter Limits and
Interface Combinations" Issue 1, July 1990. "DS-1" means a circuit complying
with AT&T Tech. Ref. Pub. 62411, December 1990, with Addendum 1, March 1991, and
Bellcore TR-MWT-000499, Issue 5, December 1993. "DS-3" shall mean a circuit
meeting the specifications 



                                       3
<PAGE>   4

set forth in AT&T Technical Reference Pub. 54014 Addendum 1, November 1992 and
Bellcore TB-NWT-608499, Issue 5, December 1993. "Purchase Order" means any
Lessee purchase order accepted by Lessor. "Requested Service Date" means the
date Service on a Circuit is requested to commence specified in the applicable
Purchase Order. "Service" means transmission service provided between North
American DSX standard cross-connect panels located in Lessor's terminal
locations. "CFA" shall mean Cable Facility Assignment for access to the local
exchange.

        7. Lessor agrees to provide "CFA" to Lessee in three (3) business days
for service provided On-net and in five (5) business days for service provided
Off-net. Lessor has agreed to provide Lessee with up to 20 CFA's at no cost to
Lessee.

        8. Lessor agrees to allow Lessee access to Lessee's choice of local
service providers so long as such local service providers are already in Lessors
Point of Presence (POP) or will make provisions with Lessor, under Lessor's
contractual terms and conditions, to provide service in Lessor's Point of
Presence (POP).

        9. Lessor agrees that when Lessee installs more than one (1) inter-city
service in Lessor's POP at the same time, the installation charge will be the
cost of installing one (1) inter-city service.

        To confirm their agreement to be bound hereby, the parties have executed
this agreement below:

IXC Carrier, Inc.                               CRL Network Services
5000 Plaza on the Lake, Suite 200               One Kearny Street.  Suite 1450
Austin, Texas 78746-1050                        San Francisco, California 94108
Attention: Vice President of Sales & Marketing  Attention:  Mr. Jim Couch
Telephone No.: (512)328-1112                    Telephone No.: (415)837-5300
Facsimile No.: (512) 328-7902                   Facsimile No.: (415)392-9000

By:                                          By:  /s/ J. Couch
   --------------------------------------       -------------------------------
                                                J. Couch  Pres.
   --------------------------------------       -------------------------------
    (Please Print - Name and Title)             (Please Print - Name and Title)




                                       4
<PAGE>   5

                                LIST OF EXHIBITS

   Exhibit A     Form of Purchase Order
   Exhibit B     Maintenance and other Additional Services.
   Exhibit C     List of On-net Cities
   Exhibit D     Discounted Rates
   Exhibit D-1   Undiscounted Rates
   Exhibit D-2   List of Rates for Service at the [**] Attainment Level or above
   Exhibit E     Existing Circuits

- --------

[**]Pursuant to a request for confidential treatment, price information in this
    document has been omitted and separately filed with the Securities and
    Exchange Commission.



                                       5
<PAGE>   6


                                EXHIBIT "A" FORM


                            [Form of Purchase Order]



                                       1
<PAGE>   7

                                    EXHIBIT B
                          CUSTOMER MAINTENANCE SUPPORT

        IXC Carrier, Inc.'s (hereinafter referred to as IXC) standard fees for
customer maintenance support services are as follows (unless set by precedence
in a service contract):

        Maintenance services shall be defined as all work performed by IXC on
equipment provided by or on behalf of the Customer, or supervision of the
Customer's work within IXC's terminate facilities. Maintenance Service charges
are not billed for troubles found within that portion of a circuit provided by
IXC. The following billing rates apply for these services:

               A. [**] per hour (4 hour minimum-if dispatch is required) 
Monday through Friday during the business hours of 8:00 a.m. - 5:00 p.m. local
time, exclusive of the following holidays:

                      New Years Day
                      President's Day
                      Memorial Day
                      Independence Day
                      Labor Day
                      Thanksgiving Day and the day after Thanksgiving
                      Christmas Day

               B. [**] per hour (4 hour minimum) for overtime work done after
business hours (defined above) and/or on holidays (defined above) and/or all day
on Saturdays and Sundays.

               C. As requests for maintenance services are typically made via
telephone, IXC must be advised, in writing as to the person(s) who are
authorized to request service. It is the Customers responsibility to keep IXC
apprised of any changes to its list of representative(s).

               D. To request technical assistance and help under the maintenance
services, a call must be made to our Network Control Center at 1-800-526-2488.
This number should be used for IXC technical assistance, troubleshooting or
testing of circuits, not for service impairment or outages. The person calling
in must be on the authorized list in order to commit for charges for this
technical assistance. If that person is not on the list, the request cannot be
accommodated.


- --------

[**]Pursuant to a request for confidential treatment, price information in this
    document has been omitted and separately filed with the Securities and
    Exchange Commission.


                                       1
<PAGE>   8

                      1. The Network Control Center personnel will take the
        call, record the caller's name and phone number along with facts
        concerning the assistance and support needed. The caller will then be
        given the number of the "Assistance Ticket."

                      2. Upon completion of work, this "Assistance Ticket" will
        be given to IXC's Accounting Department, and the customer will
        subsequently be billed based upon the information on that ticket. A copy
        will be attached to the invoice.

               E. Except for emergencies, IXC technicians cannot be dispatched
unless requests are made in accordance with the above call-out procedure.




                                       2
<PAGE>   9

                  ANCILLARY PRICING SCHEDULE FOR ON-NET SERVICE


<TABLE>
<CAPTION>
NON-RECURRING CHARGES                   DS-1                         DS-3
- ---------------------                   ----                         ----
<S>                                     <C>                          <C>     
New Order Installation (On-Net)         $[**]                        $[**]
New Order Installation (Off-Net)        ICB                          ICB
Order Change (less than 5 business      $[**]                        $[**]  
days)
Order Cancellation (less than 5         $[**]                        $[**]  
business days)
ASR (new or disconnect) (Special        $[**]                        $[**]  
Access Only)
ASR Supplement                          $[**]                        $[**]  
Order Expedite                          $[**]                        $[**]  
Reconfiguration                         Same as install              Same as install
Ramped DS-3 Installation Per DS-1       $[**]                        N/A
Distributed DS-3 Installation Per DS-1  $[**]                        N/A
First 20 CFA's/DS-1 long haul           $[**]                        N/A
    Additional CFA's over 20/DS-1       $[**]                        N/A
    long haul

<CAPTION>
MONTHLY RECURRING CHARGES               DS-1                         DS-3
- -------------------------               ----                         ----
<S>                                     <C>                          <C>      
Minimum circuit charge (IXC portion)    $[**]                        $[**]    
Cross-connect charge                    $[**]                        $[**]    

    Other long haul carrier connected 
    to Lessor local access or bypass 
    facility (Lessor long haul not 
    involved - Lessor's POP used as 
    transition point) Local bypass 
    charge                              $[**]                        $[**]  

    Lessor POP to Lessor POP in same 
    city, with no Lessor long haul 
    attached at either Lessor POP.
</TABLE>

<TABLE>
<CAPTION>
MISCELLANEOUS                           RECURRING                    NON-RECURRING
- -------------                           ---------                    -------------
<S>                                     <C>                          <C>      
 M13 1  yr Term                         $[**]/mo                     $[**]  
     2+ yr Term                         $[**]/mo                     $[**]  
     3+ yr Term                         $[**]/mo                     $[**]  

ECHO CANCELLER (per circuit end)        $[**]/mo                     $[**]  

SECOND END LOOP (Ex: for ADPCM)         $[**]/mo                     $[**]  

DEMAND MAINTENANCE                      $[**]/hr 8 a.m. - 5 p.m. M-F.  4 hour minimum if dispatch
                                        is required; $[**]/hr after hours with 4 hour minimum.

RACK SPACE                              ICB - subject to availability.
</TABLE>

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.


                                       3
<PAGE>   10

<TABLE>
<S>                                     <C>                                  <C>           
SHELF SPACE                             $[**]/ea/mo                          ICB install

DC POWER                                $[**]/amp/mo (5 amp minimum; 5 amp increments)

CIF AC/DC POWER                         ICB

ALL OTHER SERVICES                      See Note (2)
</TABLE>

(1)  All of the above charges are subject to change with a 30-day notice.
(2)  Services not described above will be considered special handling and 
     charges will be assessed on an individual basis.


DSO ANCILLARY PRICING


<TABLE>
<S>                                                 <C>   
New Order Installation                              [**]
Order Cancellation Prior to Turn up                 [**]  
Order Expedite                                      [**]  
Reconfiguration                                     [**]  
(City Pairs the Same)
DACS Charge                                         [**]  
(Switching Only)
DSP DACS Port Charge                                [**]  
DS1 DACS Port                                       [**]  
Minimum Charge per DS-0                             [**]
</TABLE>

Notes:

1. All of the above charges are subject to change with a 30 day notice. 

2. Services not described above will be considered special handling and charges
   will be assessed on an individual basis.



[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.


                                       4
<PAGE>   11


                                    EXHIBIT C

                           ON-NET DS-1 AND DS-3 CITIES

<TABLE>
<S>                               <C>                            <C>
ARIZONA
Phoenix  LATA 666                 Tucson  LATA 668
   Phelps-Dodge Twr. Ste 1702        Arizona Bank Bldg.
   2600 N. Central (602) 279         33 N. Stone, Suite 1610
                                     (520) 792

CALIFORNIA
Bakersfield LATA 734              Fresno  LATA 728                Fresno Ter
   1430 Truxton Ave. Ste 730         4605 E. Vine                    Guarantee Savings
   (805) 327                         (209) 486                       B1171 Fulton Mall, Ste. 1201
                                                                     (209) 268

Los Angeles  LATA 730             San Diego  LATA 732             San Francisco  LATA 722
   One Wilshire                      8933 Complex Dr.                Metropolitan Life Bldg.
   624 S. Grand, Suite 1615          (619) 569                       425 Market St., Ste 3800C
   (213) 689                                                         (415) 543

Sunnyvale  LATA 722
   111 Uranium
   (408) 739

COLORADO
Colorado Springs  LATA 658        Denver  LATA 656
   102 S. Tejon, Suite 780           Bell Building
   (719) 471                         931 14th Street, Ste. 622
                                     (303) 572

DISTRICT OF COLUMBIA
Washington, D.C.  LATA 236
   1828 L Street N.W., Ste. 260
   (202) 833

ILLINOIS
Chicago  LATA 358
   Prudential Building
   130 E. Randolph, Suite 4001
   (312) 637

INDIANA
Indianapolis  LATA 336            Southbend  LATA 332
   Merchants Bank Bldg.              211 West Washington St.
   11 S. Meridian                    19th Floor
   Suite 1798/1799                   (219) 233
   (317) 637

MARYLAND
Baltimore  LATA 238
   1220 S. Howard
   (301) 752
</TABLE>



                                       1
<PAGE>   12


<TABLE>
<S>                               <C>                             <C>
MICHIGAN
Ann Arbor                         Battle Creek                    Bay City
   1615 Plymouth Rd.                 Arizona Bank Bldg.              100 E. Hart
   (313) 994                         33 N. Stone, Suite 1610         (517) 667
                                     (520) 792

Detroit  LATA 340                 Detroit                         Flint
   Book Bldg, Suite 2609             1860 Gratiot Ave.               2001 S. Grand Traverse
   1249 Washington Blvd.             (313) 259                       (313) 767
   (313) 961

Grand Rapids                      Jackson                         Kalamazoo
   209 Graham, S.W.                  170 W. North Street             303 Mills St.
   (616) 235                         (517) 783                       (616) 385

Lansing                           Midland                         Pontiac
   230 South St.                     1000 Jefferson                  324 S. Saginaw
   (517) 631                         (517) 631                       (313) 338

Royal Oak                         Saginaw
   3100 W. 14 Mile Rd.               315 Meredith
   (313) 435                         (517) 771

MISSOURI
Kansas City  LATA 524             St. Louis  LATA 520
   Bank of Kansas City               900 Walnut, Suite 220
   1125 Grand Ave., Suite 1704       (314) 231
   (816) 283

NEVADA
*Las Vegas  LATA 821
   Centel Bldg., Ste. 400
   125 S. Las Vegas Blvd.
   (702) 388

NEW JERSEY
Newark  LATA 224
   744 Broad Street, 3rd Floor
   (201) 824

NEW MEXICO
Albuquerque  LATA 664
   200 Lomas Blvd., N.W.
   13th Floor
   (505) 247

NEW YORK
New York  LATA 132
   60 Hudson St., Ste. 206
   (212) 285

OHIO
Akron  LATA 325                   Cincinnati  LATA 922            Cleveland  LATA 320
   1 Cascade Plaza, Suite 1950       2300 Carew Tower                R.F. Keith Bldg., Suite 2117
   Main & Bowery                     Suite 4701                      1621 Euclid Ave.
   (216) 535                         441 Vine St.  (513) 651         (216) 771

Columbus  LATA 324                Dayton  LATA 328                Toledo  LATA 326
   Borden Bldg., Level 2B            1 National Bank Bldg.           319 Madison Ave., Ste. 29017
   180 E. Broad St.                  Suite 2220                      (419) 242
   614(469)                          130 W. Second (513) 461         

OKLAHOMA
Oklahoma City  LATA 536           Tulsa  LATA 538



</TABLE>


<PAGE>   13

<TABLE>
<S>                               <C>                              <C>
   Liberty Tower                     Lookout Mountain
   100 N. Broadway, Ste. 3020        3500 S. 26th West Avenue
   (405) 232                         (918) 584
                                     (918) 446

PENNSYLVANIA
Philadelphia  LATA 228            Pittsburgh  LATA 234
   2401 Locust St., 2nd Floor        Oliver Building
   (215) 564                         535 Smithfield St., Ste.
                                     2650
                                     (412) 281

TEXAS
Abilene  LATA 550                 Amarillo  LATA 546              Austin  LATA 558
   1049 N. Third, Suite 500          Amarillo Petroleum Bldg.        621 Pleasant Valley Road
   (915) 675(216) 535                203 W. 8th, Suite 607/608       (512) 389
                                     (806) 373

Corpus Christi  LATA 564          Dallas  LATA 552                El Paso  LATA 540
   606 N. Carancahua, Ste 816        Tower of the Americas           El Paso National Bank Bldg.
   Wilson Plaza                      2323 Bryan, Suite 380           201 E. Main, Suite 1702
   (512) 882                         Electra                         (915) 533
                                     2223 Houston St.
                                     (214) 954 (214) 969

Fort Worth  LATA 552              Harlingen  LATA 568             Houston  LATA 560
   WT Waggiber Blvd.                 513 E. Jackson                  293 N. Main Street
   810 Houston Suite 1705            Matz Building                   (713) 224
   (817) 870                         (210) 425

Lubbock  LATA 544                 McAllen  LATA 568               Midland  LATA 542
   1220 Broadway, #1901              200 S. 10th Street, Suite       KMID - TV Studio
   (806) 762                         704                             La Force Blvd. &
                                     (210) 687                       Air Terminal
                                                                     (915) 561

San Angelo  LATA 961              San Antonio  LATA 566           Waco  LATA 556
   36 E. Twohig, 15th Floor          660 S. Santa Rosa               100 S. 26th Street
   (915) 653                         (210) 225                       (817) 750
</TABLE>

*Price on an Individual Case Basis (ICB)


                                       3
<PAGE>   14

INSTALLED DS-0 CITIES                                            MARCH, 1996

<TABLE>
<S>                                 <C>
                                  NPA/NNX
ARIZONA
   Phoenix                           602-279
CALIFORNIA
   Los Angeles                       213-622
   San Diego                         619-419
   Stockton                          209-463
DISTRICT OF COLUMBIA
   Washington, DC                    202-245
ILLINOIS
   Chicago                           312-861
MARYLAND
   Baltimore                         410-752
MICHIGAN
   Birmingham                        313-435
MISSOURI
   Kansas City                       816-221
   St. Louis                         314-231
NEW MEXICO
   Albuquerque                       505-247
NEW YORK
   New York City                     212-285
OHIO
   Dayton                            513-252
OKLAHOMA
   Oklahoma City                     405-232
   Tulsa                             918-582
PENNSYLVANIA
   Philadelphia                      215-988
TEXAS                                NPA/NNX
   Austin                            512-389
   Corpus Christi                    512-883
   Dallas                            214-741
   El Paso                           915-533
   Fort Worth                        817-777
   Harlingen                         210-425
   Houston                           713-224
   San Antonio                       210-222
   McAllen                           210-632
VIRGINIA
   Norfolk                           804-622
</TABLE>


Total DS-0 Cities              26

All Cities are equipped for DSO services

Additional cities will be added if cost is justified


                                       4
<PAGE>   15

                                    EXHIBIT D
                               (DISCOUNTED RATES)

                            List of Rates for Service

                                 On-Net Service

                          Attainment Level          $ [**]

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service
               Miles
               0-999                                            [**] per DS-0 V&H Mile
               1000 +                                           [**] per DS-0 V&H Mile
DS-3 Service
               Miles
               0-249                                            [**] per DS-0 V&H Mile
               250-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] per DS-0 V&H Mile
</TABLE>

Service is for a one (1) year term for On-Net.


                                 Off-Net Service

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service

               Miles
               0-250                                            [**] per DS-0 V&H Mile
               251-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] Per DS-0 V&H Mile

DS-3 Service                                                    I.C.B.
</TABLE>

        Service is for a one (1) year term of the Underlying Carrier, whichever
is greater. If the term of the Underlying Carrier is longer than one (1) year,
Lessor will notify Lessee on the Marketing Service Order (MSO) before Lessee's
execution of the same.

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.

                                       1
<PAGE>   16

                                   EXHIBIT D-1
                              (UNDISCOUNTED RATES)

                            List of Rates for Service

                                 On-Net Service

                          Billing Level             Below $ [**]

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service

               Miles
               0-999                                            [**] per DS-0 V&H Mile
               1000 +                                           [**] per DS-0 V&H Mile

DS-3 Service

               Miles
               0-250                                            [**] per DS-0 V&H Mile
               251-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] Per DS-0 V&H Mile
</TABLE>

Service is for a one (1) year term for On-Net.



                                 Off-Net Service

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service

               Miles
               0-250                                            [**] per DS-0 V&H Mile
               251-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] Per DS-0 V&H Mile

DS-3 Service                                                    I.C.B.
</TABLE>

Service is for a one (1) year term of the Underlying Carrier, whichever is
greater. If the term of the Underlying Carrier is longer than one (1) year,
Lessor will notify Lessee on the Marketing Service Order (MSO) before Lessee's
execution of the same.

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.


                                       2
<PAGE>   17

                                   EXHIBIT D-2
                        (RATES FOR $ [**] AND ABOVE)

                            List of Rates for Service

                                 On-Net Service

                          Attainment Level          $ [**]

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service

               Miles
               0-999                                            [**] per DS-0 V&H Mile
               1000 +                                           [**] per DS-0 V&H Mile

DS-3 Service

               Miles
               0-250                                            [**] per DS-0 V&H Mile
               251-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] per DS-0 V&H Mile
</TABLE>

Service is for a one (1) year term for On-Net.



                                 Off-Net Service

<TABLE>
<S>            <C>                                              <C>
DS-0 Service                                                    I.C.B

DS-1 Service

               Miles
               0-250                                            [**] per DS-0 V&H Mile
               251-999                                          [**] per DS-0 V&H Mile
               1000 +                                           [**] Per DS-0 V&H Mile

DS-3 Service                                                    I.C.B.
</TABLE>

Service is for a one (1) year term of the Underlying Carrier, whichever is
greater. If the term of the Underlying Carrier is longer than one (1) year,
Lessor will notify Lessee on the Marketing Service Order (MSO) before Lessee's
execution of the same.

[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.


                                       3
<PAGE>   18

                                    EXHIBIT E

                                Existing Circuits


<TABLE>
<CAPTION>
City Pairs                                          Circuit ID
- ----------                                          ----------
<S>                                                 <C>
        Monthly Revenue

San Francisco - Bakersfield                       CRL 015214 ramp-up DS-1
        [**]/month
                                                  CRL015215 ramp-up 2 DS-0's
                                                  CRL015216

Los Angeles - Bakersfield                         CRL008812 DS-3
        [**]/month

Los Angeles - Phoenix                             CRL012294  ramp-up DS-1
        [**/month]
                                                  CRL012294  roll into DS-1
*Full DS-1 Charge should be $751.80               CRL012706  roll into DS-1
at the signing of this Agreement                  CRL012705  roll into DS-1
                                                  CRL013184  roll into DS-1

San Francisco - Los Angeles                       CRL 010322  ramp-up DS-1
        [**]/month

                                                  CRL010322  ramp-up 4 DS-0's
*Full DS-1 Charge should be $735.00               CRL013123  roll into DS-1
at the signing of this Agreement                  CRL013193  roll into DS-1
                                                  CRL013194  roll into DS-1

San Francisco - Sacramento                        CRL010323  DS-0
        [**]/month
</TABLE>


* A one (1) year term will begin on these circuits at the signing of this
Agreement.

[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and
     Exchange Commission.


                                       1



<PAGE>   1
                                                                   EXHIBIT 10.17


                                 AMENDMENT NO. 1
                                SERVICE AGREEMENT

        This Amendment No. 1 to Service Agreement (this "Amendment") is made as
of April 16, 1997 (the "Amendment Effective Date") by and among IXC CARRIER,
INC., a Nevada corporation ("Lessor") and CRL NETWORK SERVICES, a California
corporation ("Lessee").

                                   BACKGROUND

        This Amendment is made with reference to the following facts:

        A. Lessee and Lessor are parties to that certain Service Agreement dated
as of April 22, 1996 (the "Agreement").

        B. The parties desire to amend the Agreement pursuant to the terms set
forth below.

                               TERMS OF AMENDMENT

        Accordingly, in consideration of the mutual promises set forth below,
the parties hereto hereby agree as follows:

        1 Exhibit F attached to this Amendment is hereby added as Exhibit F to
the Agreement.

        2. This Amendment is effective as of the Amendment Effective Date-

        3. All other terms and conditions of the Agreement not specifically
amended herein shall remain in full force and effect.

        IN WITNESS WHEREOF, the parties have executed this Amendment.

IXC CARRIER, INC.                                 CRL NETWORK SERVICES

By:     /s/  John R. Fleming                      By:     /s/  J. Couch

Name:   John R. Fleming                           Name:   J Couch

Title:  Executive Vice President                  Title:  President

- ------------
Certain portions of this document in the price information in Schedule B to
Exhibit F of Amendment 1 have been omitted and filed separately with the
Securities and Exchange Commission based on a request for confidential treatment
with respect to the omitted portions.



<PAGE>   2

                                    EXHIBIT F
                           BROADBAND SERVICE ADDENDUM

        This Broadband Service Addendum (this "Addendum") dated as of April 16,
1997 is attached to and made a part of that certain Service Agreement (the
"Agreement ) entered into by and between IXC CARRIER, INC. ("Lessor") and CRL
NETWORK SERVICES ("Lessee"), dated as of April 22, 1996.

        1. Scope and Rates. Lessor, or an affiliate of Lessor, shall use
reasonable efforts (considering the needs of its other customers) to start the
provisioning of interstate data network service ("Broadband Service") described
in Schedule A attached to this Addendum to Lessee for which a written service
order ("Service Order") has been accepted. A form of Service Order is attached
hereto as Schedule B attached to this Addendum. The rates for the Broadband
Service are set forth in Schedule B, attached to this Addendum, unless otherwise
specified in the applicable Service Order.

        2. Payments. Lessee shall pay Lessor each month within 30 days of
the date of invoice without demand or set off by Lessee: (i) the monthly charges
prorated for any partial month) based on the applicable rates set forth in the
applicable Service Order; and (ii) the charges for other services received. The
first invoice shall be for the first two months; each invoice thereafter shall
be for the following month. If any invoice is not paid when due: (i) a late
charge shall accrue equal to 1-1/2% (or the maximum legal rate, if less) of the
unpaid balance per month; and (ii) Lessor may suspend or terminate the Broadband
Service.

        3. Term. The term hereof shall begin as of the date of this Addendum
and shall remain in force and effect until the date one (1) year from the date
of this Addendum, unless extended or earlier terminated pursuant to its terms.
If Broadband Service continues thereafter, the applicable rates will be equal to
120% of the rates hereunder and Broadband Service may be terminated by either
party upon 30 days' notice. Lessee may terminate any Broadband Service upon 90
days' notice; provided that if termination occurs: (i) prior to the date any
Broadband Service has been first made available to Lessee, Lessee shall
reimburse Lessor for all costs of the implementation of such Broadband Service;
and (ii) on or after such date, Lessee shall pay: (A) all charges for any
Broadband Service previously rendered; and (B) the amount due through the end of
the applicable monthly charges during the term for such Broadband Service
(Lessor shall try to re-lease such services for such term, refunding to Lessee
the amount so collected' if any). If Lessor: (i) fails to provide Broadband
Service within six months of the date requested by Lessee in the applicable
Service Order; or (ii) fails to cure a material breach hereof within 45 days of
notice from Lessee, Lessee may, as its only remedy, terminate the affected
service. To be effective, such written notice to Lessor must prominently contain
the following sentences in capital letters: "THIS IS FORMAL NOTICE OF A BREACH
OF CONTRACT. FAILURE TO CURE SUCH BREACH WILL HAVE SIGNIFICANT LEGAL
CONSEQUENCES." Notwithstanding anything herein to the contrary, no termination
of this Agreement or any affected Broadband Service shall affect or reduce
Lessee's obligation to make the take-or-pay commitment payments required by
Section 1 above.



                                       2
<PAGE>   3

        4. Limits of Liability. Lessor shall not be liable for any direct,
indirect, reliance or consequential damages, whether foreseeable or not, or for
any damage to property, loss of profits, cost of replacement services, or claims
of customers for service problems caused by any defect, delay in availability,
or failure in the Broadband Service or by any other cause. In no event shall
Lessor be liable in excess of the aggregate amount it has collected from Lessee
hereunder. Lessor shall give Lessee a credit in accordance with its then-current
outage policy for periods in which any Broadband Service loses continuity and
fails to comply with applicable specifications. Such credit shall be Lessee's
sole remedy with respect to such an event; provided, however, that no such
credits shall be allowed and Lessor shall not be liable for any Broadband
Service defect from causes outside its control, including accidents, cable cuts,
fires, floods, emergencies, government regulation, wars, or acts of God. LESSOR
DISCLAIMS ALL EXPRESS AND IMPLIED WARRANTIES RELATING TO SERVICE, INCLUDING BUT
NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE. LESSEE HAS NOT RELIED ON ANY REPRESENT NOT SET FORTH HEREIN. LESSEE
SHALL INDEMNIFY LESSOR FROM ANY CLAIMS MADE BY ANY OF LESSEE'S CUSTOMERS.

        5. All other terms and conditions of the Agreement not specifically
referred to in this Addendum shall apply to this Addendum.

        To confirm their agreement to be bound hereby, the parties hereto have
executed this Addendum below:

IXC CARRIER, INC.                              CRL NETWORK SERVICES

By:   /s/ John R. Fleming                      By: /s/ John R. Fleming 
    ---------------------------                   ----------------------------

Name: John R. Fleming                          Name: John R. Fleming
     --------------------------                      -------------------------

Title: Executive Vice-President                Title: President 
      -------------------------                      -------------------------



                                       3
<PAGE>   4

                                   SCHEDULE A

                          BROADBAND SERVICES PRODUCTS

Company will provide ATM DS-3 Service with a Sustained Cell Rate Virtual Circuit
(SCR/VC) of 1 MHz and a Peak Cell Rate (PCR) of 10 Mb to CRL Network Services as
covered within this Agreement and reflected in the pricing in Schedule B. The 
ATM DS-3 Service Trial is for a 60 day period after which Customer may elect 
pursuant to Service Trial Agreement to retain Service at rates listed in 
Schedule B. Furthermore, please see accompanying topology drawing for 
clarification of design.

**Please be advised that any and all CUSTOMER PREMISE EQUIPMENT AND LOCAL 
ACCESS facilities and charges are the Participant/Customer's responsibility.

<PAGE>   5
                                   SCHEDULE B
                                      CRL
                              ATM PRICING SUMMARY

<TABLE>

WHOLESALE PRICING WITH 45mbps (ATM-UNI) PORT CONNECTIONS AND 15mbps (VBR) VIRTUAL CHANNEL
- -----------------------------------------------------------------------------------------
                                                               TOTAL            TOTAL
              DESCRIPTION                                    RECURRING      NON-RECURRING
- -----------------------------------------------------------------------------------------
<S>                                                        <C>              <C>
SAN FRANCISCO
45mbps(DS3) ATM-UNI Port Connection                        [**]             [**]       

DALLAS, TX
45mbps(DS3) ATM-UNI Port Connection                        [**]              [**]               
15mbps (VBR) Virtual Channel DLLS-SNFC                     [**]              [**]               

WASHINGTON, DC
45mbps (DS3) ATM-UNI Port Connection                       [**]              [**]
15mbps (VBR) Virtual Channel WASHDC-SNFC                   [**]              [**]  
- ----------------------------------------------------------------------------------------
                                         TOTAL NETWORK     [**]              [**]
                                         -----------------------------------------------



WHOLESALE PRICING WITH 45mbps (ATM-UNI) PORT CONNECTIONS AND 10mbps (VBR) VIRTUAL CHANNEL
- -----------------------------------------------------------------------------------------
                                                               TOTAL            TOTAL
              DESCRIPTION                                    RECURRING      NON-RECURRING
- -----------------------------------------------------------------------------------------
<S>                                                        <C>              <C>
SAN FRANCISCO
45mbps(DS3) ATM-UNI Port Connection                        [**]              [**]

DALLAS, TX
45mbps(DS3) ATM-UNI Port Connection                        [**]              [**]   
10mbps (VBR) Virtual Channel DLLS-SNFC                     [**]              [**]

WASHINGTON, DC
45mbps (DS3) ATM-UNI Port Connection                       [**]              [**]   
10mbps (VBR) Virtual Channel WASHDC-SNFC                   [**]              [**] 
- ----------------------------------------------------------------------------------------
                                         TOTAL NETWORK     [**]              [**]    
                                         -----------------------------------------------



WHOLESALE PRICING WITH 45mbps (ATM-UNI) PORT CONNECTIONS AND 5mbps (VBR) VIRTUAL CHANNEL
- -----------------------------------------------------------------------------------------
                                                               TOTAL            TOTAL
              DESCRIPTION                                    RECURRING      NON-RECURRING
- -----------------------------------------------------------------------------------------
<S>                                                        <C>              <C>
SAN FRANCISCO
45mbps(DS3) ATM-UNI Port Connection                        [**]             [**]   

DALLAS, TX
45mbps(DS3) ATM-UNI Port Connection                        [**]              [**]   
5mbps (VBR) Virtual Channel DLLS-SNFC                      [**]              [**]

WASHINGTON, DC
45mbps (DS3) ATM-UNI Port Connection                       [**]              [**]  
5mbps (VBR) Virtual Channel WASHDC-SNFC                    [**]              [**]  
- ----------------------------------------------------------------------------------------
                                         TOTAL NETWORK     [**]              [**]   
                                         -----------------------------------------------
</TABLE>

NOTE:

1.      All calls transmitted on greater than the standard call rate (VBR) will 
        have the Call Loss Priority (CLP) bit set to one (1) and the delivery 
        of such calls is not guaranteed.

2.      All virtual circuits will have a Peak Call Rate set at 200% of the 
        Sustained Call Rate.

3.      Prices do not include any local loop charges that may apply.

[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and
     Exchange Commission.

<PAGE>   1

                                                                   EXHIBIT 10.18
                                                                   [SPRINT LOGO]

                        SPRINT NETWORK ACCESS POINT (NAP)
                              TERMS AND CONDITIONS

The following terms and conditions govern Sprint's provision of network 
connectivity Products and Services ("Products and Services") to CRL NETWORK 
SERVICES ("Customer"). Products and Services include equipment, facilities, 
programming or software provided by Sprint, but do not include certain third 
party access lines which may be utilized with the Products and Services. If 
Products and Services are or become subject to a tariff filed with the Federal 
Communications Commission or any other regulatory institution ("Tariff"), the 
terms and conditions of such Tariff, including rates, shall govern Customer's 
use of the Products and Services.

Sprint will provide a Type 1 connection to Sprint's Network Access Point 
("NAP") in conjunction with NSF Cooperative Agreement No. NCR-9321072. See 
Attachment A for definitions of Sprint NAP Access Types.

To be eligible for connection to the Sprint NAP, the Customer must have the 
following:

    -  at least one bilateral peering (routing) agreement with another ISP/NSP
       currently peering at the NAP

    -  24 x 7 network operations center

    -  the capability to dispatch a customer provided technician to install or
       replace failed components

    -  a WAN connection into the NAP with an aggregate bandwidth no less than 45
       Mbps (DS3)

1.  TERM

The initial one year term ("Initial Term") for Products and Services shall 
begin on the first day of the month following the date of Sprint's notice of
service availability. Upon expiration, the Initial Term shall be automatically
extended for successive one (1) year periods ("Term"), unless thirty (30) days
prior to the end of the Initial Term or each such extension, either (a) 
Customer or Sprint provides written notice to the other that it does not want
such extension, or (b) Customer executes a new Agreement for Products and
Services with a term longer than one (1) year.

2.  RATES

Rates for Products and Services provided hereunder are set forth in Attachment
B. Rates are fixed for 90 days after the first day of the Initial Term.
Thereafter Sprint will provide sixty (60) days advance written notice of
increased rates. In the event of such changes to rates, Customer may terminate
the Agreement without termination liability by providing written notice to
Sprint no later than thirty (30) days prior to the effective date of such
change. Otherwise, Customer will be billed according to the new rates beginning
on the effective date of such new rates.

3.  PAYMENT

Customer agrees to pay all charges incurred beginning on the date of service
availability. Recurring charges shall be invoiced monthly in advance and payment
in U.S. currency shall be due upon receipt. Interest charges of 1-3/4 percent
per month or the highest rate permitted by law, whichever is less, will accrue
daily on all amounts not paid within thirty (30) days of the date of the
invoice. Customer will pay all sales and use taxes, as well as duties or levies,
on Products and Services. The Agreement is subject to Sprint's policies and
procedures.


- ----------
Certain portions of this document in the price information in Attachment B have
been omitted and filed separately with the Securities and Exchange Commission
based on a request for confidential treatment with respect to the omitted
portions.



- --------------------------------------------------------------------------------
SPRINT COMMUNICATIONS COMPANY                                                  1
<PAGE>   2
Version Dated 5/16/97                                              [SPRINT LOGO]

4.    TERMINATION

To terminate Products and Services, Customer must provide Sprint with thirty
(30) days prior written notice. In the event of early termination of any
Agreement, Customer will pay a lump sum Termination Charge equal to: (a) one
hundred percent (100%) of the monthly price for each Product and Service
terminated multiplied by the number of months remaining in the Term. In
addition to this Termination Charge, Customer shall pay a pro-rata amount of any
waived installation charges based on the number of months remaining in the 
Initial Term. Customer will not be liable for the Termination Charge if another 
Sprint product and service of the same or greater monthly price with a term no 
less than the remaining months in the Term is ordered at the same time as the 
notice of termination is received.

5.    RIGHTS AND OBLIGATIONS OF CUSTOMER

A.    Customer shall: (i) at its own expense provide all necessary preparations
required to comply with Sprint's installation and maintenance specifications,
(ii) be responsible for the costs of relocation of Products and Services once
installed, and (iii) provide to Sprint and to suppliers of communications lines 
reasonable access to Customer's premises to perform any acts required by the 
Agreement. The Customer shall conform to the Sprint's requirements set forth in 
Attachment C (Collocated Equipment).

B.    Customer shall properly use equipment provided by Sprint and shall 
surrender such equipment to Sprint upon expiration or termination of the 
Agreement. Customer shall be liable for any and all damages to Products and 
Services located on Customer's premises excluding reasonable wear and tear, and 
damages caused by Sprint.

C.    Customer shall not nor shall it permit or assist others to: (i) use
Products and Services for any purpose other than that for which they are
intended, (ii) fail to maintain a suitable environment as specified by Sprint,
or (iii) alter, tamper with, adjust or repair the Products and Services. Upon
the occurrence of any of the above, Sprint shall be completely released from any
liability or obligation (including any warranty or indemnity obligation) to 
Customer relative to the Products and Services; and Customer shall be liable to 
Sprint for costs or damages incurred by Sprint resulting therefrom.

D.    Customer shall not nor shall it permit or assist others to abuse or 
fraudulently use Products and Services, including but not limited to the 
following:

          1.    Obtaining or attempting to obtain service by any means or device
                with intent to avoid payment; or

          2.    Unauthorized access, alteration, destruction, or any attempt
                thereof, of any information of another Sprint customer by any
                means or device; or

          3.    Using Products and Services in violation of the law or in aid of
                any unlawful act; or

          4.    Using Products and Services so as to interfere with the use of
                the Sprint network by other customers or authorized users or in
                a manner which, in the sole opinion of Sprint, is not in
                accordance with generally accepted standards of Internet access
                and use; or

          5.    Resell or redistribute any portion of the IP address space
                associated with the NAP.

Upon the occurrence of any of the above, Sprint may suspend its performance 
and/or terminate the Agreement with no further obligation to Customer.

- --------------------------------------------------------------------------------
Sprint Communications Company                                                  2

<PAGE>   3
Version Dated 5/16/97                                              [SPRINT LOGO]

6.   EQUIPMENT OR SOFTWARE NOT PROVIDED BY SPRINT

A.   Sprint shall not be responsible for the installation, operation, or 
maintenance of equipment or software not provided by Sprint; nor shall Sprint 
be responsible for the transmission or reception of information by such 
equipment or software.

B.   Customer shall be responsible for the selection, use and compatibility of 
equipment or software not provided by Sprint. In the event that such equipment 
or software impairs Customer's use of the Products and Services, Customer shall 
nonetheless be liable for payment for Products and Services. Upon notice from 
Sprint that the equipment or software not provided by Sprint is causing or is 
likely to cause hazard, interference, or service obstruction Customer shall 
eliminate such hazard, interference, or service obstruction. Sprint reserves 
the right to disconnect the Products and Services until such hazard, 
interference, or service obstruction is corrected. If requested by Customer, 
Sprint may, at its then-current rates, troubleshoot difficulties caused by 
equipment or software not provided by Sprint.

C.   Sprint shall not be responsible if any changes in Products and Services 
cause equipment or software not provided by Sprint to become obsolete, require 
modification or alteration, or otherwise affect performance of such equipment 
or software.

D.   If Customer provides its own router to interface with the Products and 
Services, then (i) Customer is fully responsible for the installation, 
maintenance, and configuration of such Customer-provided router; (ii) Sprint 
must approve in advance the make, model and/or software revision of a Customer 
provided router and any supporting equipment; and (iii) Sprint shall have the 
right, in cooperation with Customer, to set the initial software configuration 
for the router's interface into the Products and Services.

7.   RIGHTS AND OBLIGATIONS OF SPRINT

A.   Sprint shall install, operate and maintain the Products and Services as 
required herein.

B.   Sprint warrants that Products and Services will be in good working order 
and will conform to the Sprint's Specifications set forth in Attachment C 
(Collocated Equipment). Customer's sole remedy for performance or 
non-performance of Products and Services shall be repair or replacement of the 
Products and Services.

THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE.

C.   In no event shall Sprint be liable, either in contract or in tort, for 
protection from unauthorized access of Customer's transmission facilities or 
Customer premise equipment; or for unauthorized access to or alteration, theft, 
or destruction of Customer's data files, programs, procedure, or information 
through accident, fraudulent means or devices, or any other method, even if 
Sprint has assisted Customer with access management functionality including, 
but not limited to, access lists and firewalls.

D.   Except to the extent caused by the negligence of Sprint, Sprint shall not 
be liable for claims or damages resulting from or caused by: (i) Customer's 
fault, negligence or failure to perform Customer's responsibilities; (ii) 
claims against Customer by any other party (except for claims of copyright or 
patent infringement as specified herein); (iii) any act or omission of any 
other party; or (iv) equipment or services furnished by a third party.

E.   For any claim arising under or related to this Agreement, Customer's 
damages, if any, shall be limited to those actually proven as directly 
attributable to Sprint, subject to the following limitation: Sprint will not be 
liable under any circumstances for any lost profits or other consequential 
damages.
________________________________________________________________________________

Sprint Communications Company                                                  3

<PAGE>   4
                                                                 [Sprint Logo]

even if Sprint has been advised of the possibility of such damages. Sprint's
liability for damages to Customer for any cause whatsoever, regardless of the 
form of action, and whether in contract or in tort, including negligence, shall 
be limited to the lesser of $100,000 or the monthly charges paid for the 
affected Products and Services during the preceding twelve (12) months.

F.  Upon default by Customer, Sprint may terminate and retake possession of 
Products and Services (before, during, or after other actions to recover sums 
hereunder), in which case Customer shall provide Sprint full and free access to 
Products and Services for this purpose. Sprint's actions above shall not waive 
Customer's obligation to pay for all charges due Sprint hereunder as well as 
any other damages Sprint may have sustained because of Customer's default.

"Default" shall mean where Customer becomes subject of a voluntary or 
involuntary bankruptcy, insolvency, reorganization or liquidation proceeding; 
makes an assignment for the benefit of creditors, admits in writing its 
inability to pay debts when due; or fails within fourteen (14) days after 
written notice to remedy any breach of these terms and conditions.

8.   PROPRIETY RIGHTS AND INFORMATION PROTECTION

A.  Sprint grants to Customer a non-exclusive and non-transferable license to 
use programming or software which may be provided with or included in the 
Products and Services for the sole purpose of enabling Customer to use such 
Products and Services.

B.  Title and property rights to Products and Services are and shall remain 
with Sprint, whether or not embedded in or attached to realty.

C.  Customer recognizes that Products and Services provided hereunder 
constitute valuable trade secrets of Sprint or its suppliers. Customer shall 
protect and keep confidential any programming and software used by Customer 
which is provided with or included in the Products and Services, and shall make 
no attempt to examine, copy, alter, reverse engineer, tamper with, or otherwise 
misuse such programming and software.

D.  Information that is identified as proprietary to either party which is 
delivered or disclosed to the other party shall, for a period ending one (1) 
year from the expiration or termination date of the Agreement, (i) be held in 
confidence by the receiving party; (ii) be disclosed only to those employees or 
authorized representatives on a need-to-know basis, and (iii) be used only in 
fulfillment of the receiving party's obligations under the Agreement. Neither 
party shall be liable for the disclosure or use of such data or proprietary 
information which: (a) is, or becomes, publicly known, other than by breach of 
this Agreement; (b) is obtained by the receiving party from a third party 
without restriction; (c) is previously known by the receiving party; (d) is, at 
any time, developed by the receiving party completely independent of any 
disclosures hereunder; or (e) is required to be released by law.

9.   INDEMNITIES

A.  If promptly notified of any action brought against Customer based on a 
claim that Sprint provided Products and Services used by Customer infringe a 
United States patent or copyright, Sprint will defend such action at its 
expense and will pay any and all fees, costs, or damages that may be finally 
awarded in such action or resulting settlement. In the event that a final 
injunction is obtained against Customer prohibiting use of Products and 
Services by reason of infringement of a United States patent or copyright, 
Sprint will at its option either:

     1. At its expense, procure the right for Customer to continue using the 
Products and Services; or

     2. Procure the alternative Products and Services which furnish equivalent 
functionality; or

- --------------------------------------------------------------------------------
Sprint Communications Company                                                  4
<PAGE>   5
VERSION DATED 5/16/97                                             [SPRINT LOGO]

      3. Direct Customer to return such Products and Services to Sprint. 
         The agreement relating to such returned Products and Services shall 
         terminate.

B. Sprint will be indemnified and saved harmless by customer from and against
all loss, liability, damage and expense, including reasonable counsel fees,
caused by:

      1. Negligent acts or omissions of officers, employees, agents, or
         contractors of Customer which arise out of or are caused by the
         construction, installation, maintenance, presence, use or removal of
         equipment or software not provided by Sprint which are connected or are
         to be connected to the Products and Services; and which result in
         claims and demands for damages to property or for injury or death to
         persons, including payments made under any Worker's Compensation Law or
         under any plan for employee's disability or death benefits;

      2. Any claims arising from information, data, or messages transmitted over
         the network by Customer including, but not limited to, claims for
         libel, slander, invasion of privacy, infringement of copyright, and
         invasion and/or alteration of private records or data; and

      3. Claims for infringement of patents arising from the use of equipment
         and software nor provided by Sprint in connection with Products and
         Services.

10   GENERAL

A.    Customer shall not assign or transfer the Agreement without the prior
written consent of sprint. Sprint may, however, assign the Agreement to its
parent company or an affiliate with thirty (30) days notice.

B.    Sprint will not be responsible for performance of its obligations
hereunder where delayed or hindered by war, riots, embargoes, strikes (whether
of Sprint or others), casualties, accidents, or other concurrences beyond
Sprint's control. Sprint shall notify Customer in the event of any of the
foregoing occurrences. Should such occurrence continue for more than sixty (60)
days, Sprint or Customer may cancel the affected Products and Services with no
further liability.

C.   The provision of Products and Services hereunder is subject to Sprint's
continuing approval of Customer's credit-worthiness. Customer shall furnish
financial information as Sprint may from time to time reasonably request to
determine Customer's credit-worthiness.

D.   Any disputes or claims arising out of or related to the Agreement shall be 
brought within one (1) year of the occurrence.

E.   These terms and conditions may not be modified except by written amendment
by the parties. No agent, employee, or representative of Sprint or Customer has
authority to bind the parties to any representation or warranty unless such is
specifically included in these terms and conditions, the Agreement, or written
amendments thereto.

F.   Notice to the parties of disputes arising under the Agreement shall be sent
by registered mail to the parties to the address shown on the most recent
Agreement. All other notices may be sent by regular mail.
 



- -------------------------------------------------------------------------------
Sprint Communications Company                                                 5 






<PAGE>   6
                                                                  [SPRINT LOGO]


Notice to Sprint shall be to:

            Sprint 
            13221 Woodland Park Road
            Hendon, VA 20171
            Attn: Elaine Sario, VAHRN A0602

G.  The parties shall attempt to resolve all disputes arising out of or related
to this Agreement through good faith negotiations. In the event that the parties
cannot reach an agreement, any dispute arising out of or relating to this
Agreement will be finally settled by arbitration in accordance with the rules of
the American Arbitration Association. The arbitration will be governed by the
United States Arbitration Act. 9 U.S.C. Sec. 1, et seq., and judgment upon the
award rendered by the arbitrator(s) may be entered by any court with
jurisdiction. The arbitration will be held in the Kansas City, MO metropolitan
area.

H.  The Agreement including these terms and conditions, shall be executed and
enforced in accordance with and the validity and performance hereof shall be
governed by, the laws of the state of Kansas.


- --------------------------------------------------------------------------------
Before signing the agreement, please provide the following information:

1.  Type of connection you are requesting (i.e. Type 1, Type 2, or Cisco 7507): 
    Type 1

2.  Service Type you are requesting (ATM or Non ATM) Non ATM

3.  Quantity:  1

4.  Check one:  Circuit to be provided by Sprint __  
    Circuit to be provided by other carrier [X]

5.    Tax Exempt:  Yes ___    No  [X] (If yes, please provide evidence such as 
      state tax exemption certificate or you will be charged the appropriate 
      state tax.)

- --------------------------------------------------------------------------------
IN WITNESS WHEREOF, the parties hereto, each by a duly authorized officer, have 
caused this Agreement to be executed as of the last date written below.

<TABLE>
<CAPTION>

CUSTOMER:                                 SPRINT COMMUNICATIONS COMPANY
                                          LIMITED PARTNERSHIP:

<S>                                       <C>
/s/ PHILIP BURKHART                       /s/ FLORENCE GAIL MOORE
- ----------------------------              ---------------------------------
Customer Signature                        Sprint Signature


/s/ PHILIP BURKHART                       /s/ FLORENCE GAIL MOORE
- ----------------------------              ---------------------------------
Customer Printed Name                     Sprint Printed Name


CRL NETWORK SERVICES                      SENIOR CONTRACT ADMINISTRATOR
- ----------------------------              ---------------------------------
Company Name                              Sprint Title


11/11/97                                  1/6/98
- ----------------------------              ---------------------------------
Date                                      Date
</TABLE>

This agreement may be mailed to the address above or faxed to Elaine Sario at 
703-904-2588


- --------------------------------------------------------------------------------
Sprint Communications Company                                               6



<PAGE>   7
                                                                   [Sprint LOGO]



                                  ATTACHMENT A
                            SPRINT NAP ACCESS TYPES

To promote a variety of access methods Sprint has established two options for 
customer connectivity to the NAP. These are outlined below.

Type I

The NSP terminates a DS3 or OC-3 circuit to an NSP-provided router collocated 
at the Sprint NAP. This connection type allows the placement of a 
customer-owned router at the NAP with direct attachment to FDDI ports on the 
NAP. The IXC service provider is of the NSP's selection. The minimum 
transmission rate is DS3.

Customer must provide the DS3 CSU/DSU and router HSSI cable. Sprint will 
provide the FDDI multimode fiber cabling to connect the customer's router to 
the NAP.




                         [Collocated Equipment Diagram]








                       Figure 1. Type I NAP Access Method



Note: For reasons of space planning and configuration control, each collocated
      router is permitted to terminate a maximum of three (3) DS3s or one (1)
      OC-3 circuit from the NSP's backbone.


- --------------------------------------------------------------------------------
                                                                               7

<PAGE>   8
Version Dated 5/16/97                                              [SPRINT LOGO]

TYPE II
- -------

The NSP-provided router terminates an ATM network DS3 or OC-3 circuit using
Sprint's ATM User-to-Network Interface (UNI) at the Sprint NAP. This connection
type allows the placement of a customer-owned router at the NAP with direct
attachment to FDDI ports on the NAP. The minimum transmission rate is DS3.

Sprint will provide the FDDI multimode fiber cabling to connect the customer's 
router to the NAP.

                                   [GRAPHIC]

                      FIGURE 2. TYPE II NAP ACCESS METHOD

Note: For reasons of space planning and configuration control, each collocated
      router is permitted to terminate a maximum of three (3) DS3s or one (1)
      OC-3 circuit from the NSP's backbone.


















- --------------------------------------------------------------------------------
Sprint Communications Company                                                  8

<PAGE>   9
                                                                   [SPRINT LOGO]


                                  ATTACHMENT B
                         PRODUCTS, SERVICES AND PRICES

Except where designated, all charges below are monthly fees. The physical 
connection can be provided by Sprint or another carrier.

             SPRINT NAP COLLOCATION AND CONNECTION PRICING SCHEDULE

<TABLE>
<CAPTION>
                             -------------------------------------------------------------------------------
                                    (1)DS-3            (2)DS-3s            (3)DS-3s             (1)DC-3c
- ------------------------------------------------------------------------------------------------------------
Connection     Service Type     Sprint   Other      Sprint   Other      Sprint   Other      Sprint    Other
   Type                         Access   Access     Access   Access     Access   Access     Access    Access
- ------------------------------------------------------------------------------------------------------------
<S>            <C>              <C>      <C>        <C>      <C>        <C>      <C>        <C>       <C>
  Type-I         Non-ATM
- ------------------------------------------------------------------------------------------------------------
  Type-II          ATM          [**]
- ------------------------------------------------------------------------------------------------------------
Cisco 7507          --
- ------------------------------------------------------------------------------------------------------------
</TABLE>


NOTES:

1.   Customers will be limited to a Cisco 7505, 7507, or other router with
     similar I/O slot capacity.

2.   Customers will be limited to a maximum of three (3) DS-3s or one (1) OC-3c
     circuit per router.

3.   Monthly recurring cost includes Central Office Connection (COC) fee and 
     applies to all carrier provided access.

4.   Customers will incur a non-recurring installation charge of $5,000 per 
     router.

5.   Customers may collocate as many routers as needed, but will be charged a 
     monthly NAP collocation and connection fee for each based on the router 
     model and the quantity of circuits it terminates.

6.   Customers who wish to add circuits to an existing router must agree to 
     these new NAP Terms and Conditions.


- --------------------------------------------------------------------------------
Sprint Communications Company
                                                                               9

- -----------
[**]  Pursuant to a request for confidential information, price in this document
      has been omitted and separately filed with the Securities and Exchange 
      Commission.
<PAGE>   10
                                                                   [SPRINT LOGO]


                                  ATTACHMENT C
                            NAP COLLOCATED EQUIPMENT


1. INSTALLATION SPECIFICATIONS

The Customer is responsible for installing and maintaining their equipment at 
the Sprint NAP in accordance with the following specifications:

        - Equipment must be UL approved
        - Equipment must support 120Vac power (see note)
        - Rackmount shelves must have rack-mount ears for flush mounting to
          rack standoffs
        - Rackmount shelves must have manufacturer-supplied cable management
          brackets
        - Rackmount shelf width must be no more than 17.72 inches
        - No open shelf slots are permitted (e.g., vacant slots must be
          covered)

Note:  Redundant 48Vdc power is available for Cisco 7507 or similar sized 
       router. Consult with Spring NAP Engineering for details.

In addition, the Customer is responsible for ensuring that the standards by 
which the equipment is installed are consistent with industry standards and 
practices.

2. FACILITY ACCESS

The Customer will be granted access into the Sprint NAP facility during normal 
business hours. Access for emergency repairs only on a 24 x 7 basis is also 
available. In both cases, prior arrangements must be made by contacting NAP 
Engineering. NAP Engineering will coordinate customer technician access into 
the Sprint facility. Sprint will endeavor to accommodate requests for after 
hours or weekend upgrades to existing equipment. No installation, maintenance 
or non-emergency repair of equipment after hours or on weekends/holidays will be
allowed without prior arrangements having been made. Installation of new 
equipment requires a minimum of two (2) business days confirmed advance notice.

3. SPECIFICATIONS OF CUSTOMER COLLOCATED EQUIPMENT

The customer is required to submit his desired equipment configuration to the 
NAP Engineering and receive approval before collocation can proceed. Equipment 
specifications such as rackmount shelf dimensions, power requirements, heat 
dissipation and other pertinent information are required by NAP Engineering so 
as to determine customer equipment rack mounting configuration and bay mounting 
assignments. NAP Engineering will provide customer with an installation 
specification document prior to the scheduled installation date at the NAP.

4. RACK MOUNTING

Sprint will provide standard open 19-inch relay racks. EIA-drilled, with 5-inch 
rack standoffs. Shelf dimensions must not exceed 17.72" in width. Sprint will 
provide UPS-protected 120Vac power for the customer's equipment.






===============================================================================
Sprint Communications Company                                                10

 
<PAGE>   11
                                                                   [SPRINT LOGO]



5.  MANAGEMENT PORT ACCESS

    If the Customer requires out-of-band dialup access to their equipment, they
    will need to supply the necessary equipment and order the necessary business
    lines from the Bell Atlantic Business Office. The Customer will be
    responsible for all expenses associated with the use of the business lines.
    The customer must obtain a bay assignment from NAP Engineering before the
    order can be placed with Bell Atlantic.

    For other remote management requirements, such as private network links,
    Spring will cooperate with the Customer. All costs will be born by the
    Customer. The installed equipment will need to meet the same requirements as
    those set out here for similar equipment.


6.  IP ADDRESS ASSIGNMENT

    The customer shall receive his IP address assignment(s) from Sprint. Any
    address(es) provided by Sprint shall remain the property of Sprint and must
    be relinquished upon customer disconnect of NAP services. Sprint shall also
    assign with each customer's NAP IP address a DNS name from the
    SPRINTNAP.NET domain.


7.  SECURITY

    While Sprint makes no requirements in the area of security management for
    NAP clients, it recommends that the Customer develop a policy that addresses
    the traditional information system security issues of acceptable use,
    accountability, and incident handling and recovery for their equipment.


















===============================================================================
Sprint Communications Company                                                11


<PAGE>   1
                                                                  EXHIBIT 10.19


QCC Standard Private Line



                        QWEST COMMUNICATIONS CORPORATION
                         PRIVATE LINE SERVICES AGREEMENT



        This Private Line Services Agreement, having Service Agreement No.
PL-0000346-9710-01-01 is entered into as of October 10, 1997 (the "EFFECTIVE
DATE"), by and between Qwest Communications Corporation, a Delaware corporation
("QWEST"), and CRL Network Services. Inc., a California corporation
("CUSTOMER").

1.      INCORPORATION OF DOCUMENTS AND CONTROLLING PROVISIONS:

1.1     This Service Agreement, together with (a) Service Orders (as defined in
        Section 2.1 of this Service Agreement) accepted by Qwest pursuant to the
        terms hereof, and (b) schedules and exhibits incorporated herein by
        reference ("EXHIBITS"), shall be referred to collectively herein as this
        "AGREEMENT." In the event of any conflict between the provisions of this
        Service Agreement and the terms of any Service Order(s) and/or
        Exhibit(s), the conflict shall be resolved by reference to said
        documents in the following order of priority of interpretation (except
        as is otherwise specifically provided in this Service Agreement or in
        any Exhibits): (a) any Service Order(s); (b) any Exhibit(s), with
        reference to the same in order of attachment to this Service Agreement;
        and (c) this Service Agreement. Notwithstanding the foregoing, no
        provision or term of any Service Order or Exhibit shall be a part of
        this Agreement or binding on Qwest unless and until such Service Order
        or document has been executed by an authorized representative of Qwest.

1.2     If any provision of this Agreement conflicts with any statute, rule or
        order of any governmental unit or regulatory body, or tariff filed by
        Qwest, then, if required by law, this Agreement shall remain in effect
        but shall be automatically modified by such conflicting law, statute,
        rule, order or tariff, subject to the termination rights granted herein.

2.      SERVICES TO BE PROVIDED BY QWEST:

2.1     Telecommunications capacity, and related ancillary services (the
        "FACILITY" or "FACILITIES") available from Qwest are identified in the
        Service and Pricing Exhibit attached hereto as EXHIBIT "A," which is
        incorporated by this reference (the "SERVICE AND PRICING EXHIBIT").
        Facilities requested by Customer shall be requested on Qwest's service
        order forms in effect from time to time (hereafter, any such order is a
        "SERVICE ORDER(S)"). Each Service Order shall reference this Agreement
        by Service Agreement Number and shall become a part of this Service
        Agreement when executed by a duly authorized representative of Qwest.
        Qwest reserves the right to reject any Service Order.

2.2     Upon acceptance by Qwest of a duly executed Service Order during the
        Term (as defined in Section 4.3 of this Service Agreement) of this
        Agreement, Qwest shall provide to Customer those Facilities identified
        in the Service Order.


- ----------
Certain portions of this document in the price information of Section 3.1 of
Exhibit A (Service and Pricing Exhibit) and the price information in the
service orders have been omitted and filed separately with the Securities and
Exchange Commission based on a request for confidential treatment with respect
to the omitted portions.


                              Qwest Communications

                                       1





<PAGE>   2

QCC Standard Private Line



3.      OBLIGATIONS OF CUSTOMER:

3.1     Customer shall perform those duties outlined in the Service and Pricing
        Exhibit in addition to those described herein and in any Service
        Order(s).

3.2     Customer shall have sole responsibility for installation, testing and
        operation of the Interconnection Facilities (as defined in Section 1.4
        of the Service and Pricing Exhibit), and any services and equipment
        other than those Facilities specifically provided by Qwest under this
        Agreement.

3.3     Customer shall fully comply with all laws, regulations and authorities
        including, but not limited to, those outlined in Section 9 of this
        Service Agreement.

4.      TERM:

4.1     This Agreement shall be effective between the parties as of the date
        first written hereon. The initial term (the "INITIAL TERM") of this
        Agreement shall expire three (3) years from the date of execution
        hereof, unless either party earlier terminates this Agreement in the
        manner provided herein.

4.2     Upon the expiration of the Initial Term, if Customer is not then in
        default hereunder, the term of this Agreement shall be renewed
        automatically on a month-to-month basis (hereafter, the "RENEWAL TERM")
        unless and until an Amendment is executed by both parties extending the
        Renewal Term, or either party terminates this Agreement in the manner
        provided herein.

4.3     The Initial Term and Renewal Term are sometimes referred to together
        herein as the "TERM."

4.4     Notwithstanding anything to the contrary in this Section 4, if the
        Facility Minimum Service Term (as set forth in Section 4.3 of the
        Service and Pricing Exhibit) for a Facility or Facilities extends beyond
        the expiration of the Term of this Agreement, then this Agreement shall
        continue in effect until the expiration or termination of the applicable
        Facility Minimum Service Term, but only as to the Facility or Facilities
        so affected, and subject to the termination rights of Qwest and Customer
        under Section 8 of this Service Agreement.

5.      CHARGES AND PAYMENT:

5.1     Charges for the Facilities shall be determined according to the Service
        and Pricing Exhibit except as is otherwise specifically provided in this
        Agreement.

5.2     Recurring charges shall be invoiced by Qwest on a monthly basis in
        advance and non-recurring charges shall be invoiced in arrears. If the
        Start of Service Date (as defined in Section 2.1 of the Service and
        Pricing Exhibit) for any Facility falls on other than the first day of
        any month, the first invoice to Customer shall consist of: (1) the
        pro-rata portion of




                              Qwest Communications

                                       2
<PAGE>   3


        the applicable monthly charge covering the period from the Start of
        Service Date to the first day of the subsequent month, and (2) the
        monthly charge for the following month. Qwest may, in its sole
        discretion, prior to delivering the first invoice to Customer, elect to
        require that Customer make a security deposit amount equal to one (1)
        month's recurring charges for the Facility or Facilities. If a deposit
        is made, it shall be held by Qwest until termination of this Agreement,
        at which time Qwest may apply the deposit, at its option, either against
        the last month of charges due hereunder prior to termination of this
        Agreement, or against any other amounts owing to Qwest under this
        Agreement.

5.3     Customer shall make all payments due hereunder within thirty (30) days
        after the date of Qwest's invoice. If any amount due under this
        Agreement is not received by the due date, in addition to its other
        remedies available hereunder, Qwest may in its sole discretion: (a)
        impose a late payment charge of the lower of 1.5% per month or the
        highest rate legally permissible (such late charge shall be payable upon
        demand by Qwest); and/or (b) require the prepayment of up to two (2)
        months of recurring charges as a condition of the continued availability
        of the Facilities, which prepayment shall be held and applied against
        the last two (2) months of charges hereunder prior to termination of
        this Agreement. Notwithstanding anything in this Agreement to the
        contrary, no payment due hereunder is subject to reduction, set-off or
        adjustment of any nature by Customer, except as is specifically provided
        in Section 5 of the Service and Pricing Exhibit regarding Outage
        Credits. In no event shall the malfunction or non-operation of
        Customer's Interconnection Facilities (including local access when
        Customer is responsible there for) relieve Customer of its obligation to
        pay for the Facilities.

5.4     All disputes or requests for billing adjustments must be submitted in
        writing and submitted with payment of undisputed amounts due. Any
        amounts which are determined by Qwest to be in error or not in
        compliance with this Agreement shall be adjusted on the next month's
        invoice. Any disputed amounts which are deemed by Qwest to be correct as
        billed and in compliance with this Service Agreement, shall be due and
        payable by Customer, upon notification and demand by Qwest, along with
        any late payment charges which Qwest may impose pursuant to Section 5.3
        above. Disputes shall not be cause for Customer to delay payment of the
        undisputed balance to Qwest according to the terms outlined in Section
        5.3 above.

5.5     Invoices submitted to Customer by Qwest shall conform to Qwest's
        standard billing format and content, as modified by Qwest from time to
        time.

5.6     Any applicable federal, state, or local taxes, and all use, sales,
        commercial, gross receipts, privilege or other similar taxes or license
        fees, whether charged to or against Qwest or Customer, with respect to
        the Facilities provided by Qwest, as well as any other imposition by any
        governmental authority which has the effect of increasing Qwest's cost
        of providing the Facilities, shall be payable by Customer in addition to
        the other charges set forth in this Agreement.




                              Qwest Communications

                                        3
<PAGE>   4
QCC Standard Private Line



6.      EVENTS OF DEFAULT:

6.1     A "DEFAULT" shall occur if: (a) Customer fails to make any payment
        required to be made by it under this Agreement and any such failure
        remains uncorrected for five (5) business days after the date such
        payment was due; (b) either party fails to perform or observe any
        material term or obligation (other than making payment) contained in
        this Agreement, and any such failure remains uncorrected for thirty (30)
        calendar days after written notice from the non-defaulting party
        informing the defaulting party of such failure (except for a Default by
        Customer under Section 9.2 of this Service Agreement, which shall
        require no advance written notice); (c) Customer breaches its
        obligations to Qwest in any other agreement, including but not limited
        to, agreements for switched access services, Media Express services or
        any collocation agreements; or (d) there is an Adverse Material Change
        (as defined in Section 6.2 of this Service Agreement) in Customer's
        creditworthiness.

6.2     For purposes of Section 6.1 of this Service Agreement, an Adverse
        Material Change in Customer's creditworthiness shall include, but not be
        limited to: (a) failure of Customer to make full payment of charges due
        hereunder on or before the date due on three (3) or more occasions
        during any period of twelve (12) months, or Customer's failure to make
        such payment on or before the date due in any two (2) consecutive
        months; (b) acquisition of Customer (whether in whole or by majority or
        controlling interest) by an entity which is insolvent, which is subject
        to bankruptcy or insolvency proceedings, which owes past due amounts to
        Qwest or any entity affiliated with Qwest, or which presents a
        materially greater credit risk than Customer; or (c) Customer's being
        subject to or having filed for bankruptcy or insolvency proceedings, or
        the legal insolvency of Customer.

6.3     Notwithstanding Section 6.1 of this Service Agreement, the failure of
        any particular circuit or number of circuits to comply with the
        Specifications (as that term is defined in Section 2.1 of the Service
        and Pricing Exhibit) shall not be deemed a Default by Qwest, but may
        obligate Qwest to provide Customer with Outage Credits, as provided in
        Section 5 of the Service and Pricing Exhibit.

7.      REMEDIES FOLLOWING DEFAULT:

7.1     If Customer is in Default, Qwest may, in addition to any other remedies
        it has under this Agreement or under the law: (a) suspend its
        performance under this Agreement without the requirement of any further
        notice to Customer, until Customer has remedied all breaches of this
        Agreement and paid in full all charges then due, including any late fees
        specified herein plus, at Qwest's option, the prepayment of up to two
        (2) months recurring charges, as is specified in Section 5.3 of this
        Service Agreement; (b) condition provision of Facilities or acceptance
        of a Service Order on Customer's assurance of payment and compliance
        with this Agreement, which may be in the form of a deposit or such other
        means as is required by Qwest to establish assurance of payment and
        compliance: or




                              Qwest Communications


                                       4
<PAGE>   5

QCC Standard Private Line



        (c) terminate this Agreement by providing written notice to Customer in
        the manner provided in Section 8.2 of this Service Agreement.

7.2     If Qwest is in Default, Customer may, in addition to any other remedies
        it has under this Agreement or under the law, terminate this Agreement
        in the manner provided for in Section 8.1 of this Service Agreement, but
        may not withhold or suspend its own performance.

8.      TERMINATION:

8.1     Customer may terminate this Agreement: (a) effective upon written notice
        to Qwest, if Qwest is in Default (as provided in Section 7.2 of this
        Service Agreement); (b) effective upon thirty (30) calendar days prior
        written notice. if any material rate or term contained herein and
        relevant to the affected Facilities is materially changed by order of
        the highest court of competent jurisdiction to which the matter is
        appealed, the Federal Communications Commission, or other local, state
        or federal government authority; or (c) effective upon thirty (30)
        calendar days prior written notice, with or without cause, following the
        expiration of the Initial Term.

8.2     Qwest may terminate this Agreement: (a) effective upon written notice to
        Customer, if Customer is in Default (as provided in Section 7.1 of this
        Service Agreement); (b) effective upon thirty (30) days prior written
        notice, with or without cause, following the expiration of the Initial
        Term; or (c) effective immediately and without any advance written
        notice, if Qwest does not maintain or loses any required regulatory or
        other governmental authorizations to provide the Facilities, as
        described in Section 9.1 of this Service Agreement; following a Default
        by Customer under Section 9.2 of this Service Agreement; or if Customer
        makes an unauthorized Transfer under Section 12.1 of this Service
        Agreement.

8.3     Customer may terminate the affected portion or portions of a Service
        Order or Service Orders: (a) upon ten (10) calendar days prior written
        notice following failure of performance, in the manner and subject to
        Section 10.2 of this Service Agreement or Section 1.2 of the Service and
        Pricing Exhibit; or (b) following thirty (30) calendar days prior
        written notice, following an increase in prices by Qwest as to a
        particular Facility or Facilities, in the manner and subject to Section
        3.2 of the Service and Pricing Exhibit. Any termination of a Service
        Order of Service Orders shall not affect any remaining Service Orders,
        and shall not constitute a termination of this Agreement.

9.      GOVERNMENTAL AUTHORITY:

9.1     Customer acknowledges that the obligation of Qwest to provide the
        Facilities to Customer is subject to the receipt by Qwest of any
        required regulatory or other governmental authorizations. This Agreement
        may be superseded by a tariff filed with the appropriate regulatory
        agency, which tariff may contain such modifications of the provisions of
        this Agreement as Qwest deems appropriate, all of which shall become



                              Qwest Communications


                                        5
<PAGE>   6
QCC Standard Private Line



        automatically binding on Customer. Qwest reserves the right to terminate
        this Agreement pursuant to Section 8.2 of this Service Agreement if at
        any time Qwest does not have or loses the required regulatory or other
        governmental authorizations to provide the Facilities.

9.2     Customer represents and warrants that: (a) Customer has received all
        necessary permits, licenses, approvals, grants, and charters of
        whatsoever kind necessary to carry out the business in which Customer is
        engaged; and (b) Customer has complied and does comply with all laws,
        regulations, orders, and statutes which may be applicable to Customer,
        whether local, State or Federal. From the date of this Agreement until
        the termination hereof, Customer agrees to operate in accordance with
        and to maintain current all such certifications, permits, licenses,
        approvals, grants, charters, and to comply with all applicable laws,
        regulations, orders and statutes, whether local, State or Federal. A
        breach by Customer of any of the representations, warranties or
        covenants of this Section 9.2 shall be deemed a Default hereunder, and
        shall allow Qwest to terminate this Agreement in the manner described in
        Section 8.2 of this Service Agreement.

10.     FORCE MAJEURE:

10.1    Except as is provided in Section 10.2 below, Qwest shall not be liable
        for any failure of performance hereunder due to causes beyond its
        reasonable control, including, but not limited to: acts of God, fire,
        explosion, vandalism, fiber optic cable cut, storm, extreme temperatures
        or other similar catastrophes; any law, order, regulation, direction,
        action or request of the United States government, or of any other
        government, including state and local governments having jurisdiction
        over either of the parties, or of any department, agency, commission,
        court, bureau, corporation or other instrumentality of any one or more
        said governments, or of any civil or military authority; national
        emergencies, insurrections, riots, wars, or strikes, lock-outs, work
        stoppages or other labor difficulties: actions or inactions of a third
        party provider or operator of facilities employed in provision of the
        Facilities; or any other conditions or circumstances beyond the
        reasonable control of Qwest which impede or affect the Facilities or the
        transmission of telecommunications services.

10.2    If any failure of performance on the part of Qwest described in Section
        10.1 of this Service Agreement shall be: (a) for twenty-four (24) hours
        or less, then this Agreement shall remain in effect, but Customer shall
        be relieved of its obligation to pay for that portion of the Facilities
        affected for the period of such failure of performance; or (b) for more
        than forty-eight (48) hours, then Customer may terminate only that
        portion of any Service Order or Service Orders related to the Facilities
        so affected, by written notice to Qwest, in accordance with Section 8.3
        of this Service Agreement.

10.3    If the Facilities are unavailable to Customer as a result of any events
        described in Section 10.1, Customer may be entitled to an Outage Credit
        under Section 5 of the Service and Pricing Exhibit.



                              Qwest Communications


                                       6
<PAGE>   7

QCC Standard Private Line



11.     INDEMNIFICATION:

11.1    Customer shall indemnify and hold harmless Qwest (and Qwest's
        affiliates, officers, directors and employees; hereafter, "QWEST'S
        AFFILIATES"), and any third party provider or operator of services
        employed by Qwest and/or Qwest's Affiliates in the provision of the
        Facilities, from and against, and shall reimburse Qwest and/or Qwest's
        Affiliates for, any and all losses, liabilities, deficiencies, claims
        and expenses (including, but not limited to, costs of defense and
        reasonable attorneys fees) incurred by Qwest and/or Qwest's Affiliates
        and arising from or in connection with: (a) any breach of any covenant
        or agreement of Customer contained in this Agreement; (b) any
        misrepresentation or breach of any of the representations and warranties
        of Customer contained in this Agreement; or (c) any claims which may be
        asserted by parties other than Customer who have use of or access to the
        Facilities through Customer.

12.     ASSIGNMENT:

12.1    Neither this Agreement nor any of Customer's rights or obligations
        hereunder may be sold, assigned, sublet, encumbered or transferred by
        operation of law or otherwise (hereafter, a "TRANSFER"), without the
        prior written consent of Qwest. Any Transfer by Customer without Qwest's
        prior written consent shall entitle Qwest, at its option, to: (a)
        consider the Transfer void; (b) consent to the Transfer, and hold the
        Customer and any transferee(s) liable hereunder; or (c) terminate this
        Agreement upon delivering written notice to Customer. Subject to the
        foregoing, this Agreement shall be binding upon and inure to the benefit
        of the parties hereto and their respective successors or assigns. Qwest
        may transfer, assign, or otherwise in any manner encumber this Agreement
        and its rights and obligations hereunder without the need to obtain
        Customer's prior consent.

13.     TITLE:

13.1    Customer expressly disclaims any right, title, perpetual right of use or
        any other interest in or to any equipment or property used or supplied
        by Qwest under this Agreement.

14.     WARRANTIES AND LIMITATION OF LIABILITY:

14.1    Qwest warrants that the Facilities shall be provided to Customer and
        shall operate in accordance with prevailing telecommunications industry
        standards (hereinafter the "TECHNICAL STANDARDS"). If Qwest determines
        that the Facilities are not being provided in accordance with the
        Technical Standards (hereinafter, a "DEFECT" or "DEFECTS"), Qwest shall
        use reasonable efforts under the circumstances to conform the Facilities
        to the Technical Standards.

14.2    THE WARRANTIES CONTAINED IN SECTION 14.1 OF THIS SERVICE AGREEMENT ARE
        EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESS, IMPLIED
        OR STATUTORY, INCLUDING WITHOUT




                              Qwest Communications

                                       7
<PAGE>   8


        LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
        PARTICULAR PURPOSE. QWEST HEREBY SPECIFICALLY DISCLAIMS ANY LIABILITY TO
        CUSTOMER FOR INTERRUPTIONS AFFECTING THE FACILITIES FURNISHED HEREUNDER
        WHICH ARE ATTRIBUTABLE TO CUSTOMER'S INTERCONNECTION FACILITIES (AS
        DEFINED IN SECTION 1.4 OF THE SERVICE AND PRICING EXHIBIT) OR TO
        CUSTOMER'S EQUIPMENT FAILURES, OR TO CUSTOMER'S BREACH OF THIS
        AGREEMENT.

14.3    IN NO EVENT SHALL QWEST OR ANY OF ITS AFFILIATES BE LIABLE TO CUSTOMER
        OR ANY OF ITS AFFILIATES OR EMPLOYEES OR TO ANY THIRD PARTY FOR: (a) ANY
        LOSS OF PROFIT OR REVENUE, OR FOR ANY INDIRECT, CONSEQUENTIAL,
        INCIDENTAL, PUNITIVE OR SIMILAR OR ADDITIONAL DAMAGES, WHETHER INCURRED
        OR SUFFERED AS A RESULT OF UNAVAILABILITY OF FACILITIES, PERFORMANCE,
        NON-PERFORMANCE, TERMINATION, BREACH, OR OTHER ACTION OR INACTION UNDER
        THIS AGREEMENT, OR FOR ANY OTHER REASON, EVEN IF CUSTOMER ADVISES QWEST
        OF THE POSSIBILITY OF SUCH LOSS OR DAMAGE; OR (b) FOR ANY OUTAGE OR
        INCORRECT OR DEFECTIVE TRANSMISSIONS, OR ANY DIRECT OR INDIRECT
        CONSEQUENCES THEREOF, EXCEPT AS IS SPECIFICALLY PROVIDED IN SECTION 5 OF
        THE SERVICE AND PRICING EXHIBIT REGARDING OUTAGE CREDITS.

14.4    NOTWITHSTANDING ANYTHING IN THIS AGREEMENT TO THE CONTRARY: (a) CUSTOMER
        AGREES THAT ITS SOLE REMEDY IN THE EVENT OF ANY BREACH OF THE WARRANTIES
        DESCRIBED IN SECTION 14.1 OF THIS SERVICE AGREEMENT SHALL BE THE OUTAGE
        CREDITS DESCRIBED IN SECTION 5 OF THE SERVICE AND PRICING EXHIBIT; AND,
        (b) IN NO EVENT SHALL THE CUMULATIVE LIABILITY OF QWEST UNDER THIS
        AGREEMENT, INCLUDING ANY OUTAGE CREDITS, EXCEED THE TOTAL PAYMENTS PAID
        BY CUSTOMER TO QWEST HEREUNDER.

14.5    Customer acknowledges that Qwest has no ability to independently test or
        maintain Facilities between two off net cities. Consequently, if Qwest
        provides such Facilities, then notwithstanding anything in this
        Agreement to the contrary, Qwest's entire duty with respect to such
        Facilities shall be to use its best efforts to test and maintain such
        Facilities in accordance with Qwest's Specifications.

15.     NON-DISCLOSURE AND PUBLICITY:

15.1    Neither party shall disclose to any third party' the terms and
        conditions of this Agreement without the prior written consent of the
        other, except that Customer may disclose the terms and conditions of
        this Agreement to potential investors in Customer, and Qwest may
        disclose the terms and conditions of this Agreement to potential
        investors in Qwest. Neither party shall use the other's name in
        publicity or press releases without obtaining prior written approval,
        which shall not be unreasonably withheld.



                              Qwest Communications


                                        8
<PAGE>   9

QCC Standard Private Line



16.     ARBITRATION:

16.1    All disputes which involve amounts reasonably anticipated to be in
        excess of Twenty-Five Thousand Dollars ($25,000.00) arising out of or
        related to this Service Agreement, shall be determined and resolved by
        arbitration in Denver, Colorado, in accordance with the rules of the
        American Arbitration Association ("AAA"). The arbitrators shall be
        appointed in accordance with the rules then prevailing of the AAA.

16.2    The award rendered by the arbitrator(s) shall be final and binding upon
        the parties hereto. Neither party shall have the right to further appeal
        or redress the matters arbitrated except for the purposes of obtaining
        the judgment rendered by the arbitrator(s). Judgment upon any
        arbitration award may be entered and enforced in any court of competent
        jurisdiction.

16.3    The parties hereto agree that a prevailing party shall be entitled to
        recover all reasonable costs and expenses (including all reasonable
        attorney's fees and disbursements) of such arbitration proceeding, as
        well as all cost for said proceeding. Such prevailing party shall also
        be entitled to reasonable attorney's fees and costs incurred in
        enforcing a judgment of the arbitrators separately from and in addition
        to any other amount included in such judgment. This Section 16.3 shall
        be severable from the other provisions of this Service Agreement and
        shall survive and not be merged into any such judgment.

17.     USE OF FACILITIES:

17.1    Qwest's obligation to provide the Facilities specified herein is
        conditioned upon Customer not allowing the Facilities to be used for any
        unlawful purpose: or in violation of any governmental regulations or
        authorizations as outlined in Section 8 of this Service Agreement.

18.     MISCELLANEOUS:

18.1    Customer shall execute such other documents, provide such information
        and cooperate with Qwest, all as may be reasonably required by Qwest in
        connection with providing the Facilities.

18.2    Neither this Agreement, nor the provision of Facilities hereunder, shall
        create a partnership or joint venture between the parties or result in a
        joint communications service offering to any third parties.

18.3    The failure of either party to give notice of default or to enforce or
        insist upon compliance with any of the terms or conditions of this
        Agreement shall not constitute a waiver of any term or condition of this
        Agreement.

18.4    Subject to Section 16 of this Service Agreement, in the event suit is
        brought or an attorney is retained by either party to enforce the terms
        of this Agreement or to collect any moneys due hereunder or to collect
        money damages for breach hereof, the prevailing party shall be entitled
        to recover, in addition to any other remedy, reimbursement for




                              Qwest Communications


                                       9
<PAGE>   10

QCC Standard Private Line



        reasonable attorneys' fees, court costs, costs of investigation and
        other related expenses incurred in connection therewith.

18.5    Customer acknowledges that at least part of the Facilities are or will
        be provided through a Qwest "NETWORK MANAGEMENT CENTER" located in
        Denver, Colorado. Accordingly, this Agreement shall be construed under
        the laws of the State of Colorado without regard to choice of law
        principles. Except as is provided in Section 16 of this Service
        Agreement, venue and jurisdiction shall lie exclusively with the
        District Court in the City and County of Denver.

18.6    No subsequent agreement concerning the Facilities or modification to
        this Agreement shall be binding upon the parties unless it is made in
        writing by an authorized representative of Customer and an authorized
        Representative of Qwest Communications at its headquarters in Denver,
        Colorado.

18.7    If any part of any provision of this Agreement shall be invalid or
        unenforceable under applicable law, said part shall be ineffective to
        the extent of such invalidity only, without in any way affecting the
        remaining parts of said provision or the remaining provisions of this
        Agreement, and the Customer and Qwest agrees to negotiate with respect
        to any such invalid or unenforceable part to the extent necessary to
        render such part valid and enforceable.

18.8    The terms and provisions contained in this Agreement that by their sense
        and context are intended to survive the performance thereof by the
        parties hereto shall survive the completion of performance and
        termination of this Agreement, including, without limitation, the making
        of any and all payments due hereunder.

18.9    Words having well-known technical or trade meanings shall be so
        construed.

18.10   All notices, requests, demands and other communications required or
        permitted hereunder shall be in writing and shall be given by: (a) hand
        delivery; (b) first-class registered or certified mail with postage
        prepaid; (c) overnight receipted courier service; or (d) telephonically
        confirmed facsimile transmission, which notice is addressed to the party
        at the address set forth below, or such other address as may hereafter
        be designated in writing by the party. Notices given in accordance with
        this Section shall be effective upon receipt or when receipt is refused.




                              Qwest Communications

                                       10
<PAGE>   11

QCC Standard Private Line



        All notices to Qwest shall be addressed to:

                      Qwest Communications Corporation
                      555 17th Street, Suite 1000
                      Denver, Colorado 80202
                      Facsimile:    (303)291-1724
                      Phone:        (303)291-1400
                      Attn.: Carrier Contracts Admin.

        All notices to Customer shall be addressed to:

                      CRL Network Services, Inc.
                      1 Kearny St., Suite 1450
                      San Francisco CA 94108
                      Facsimile:    415-392-9000
                      Phone:        415-837-5300
                      Attn.: Jim Couch

        The addresses set forth may be changed by appropriate notice to the
other party.

18.11   This Agreement comprises the complete and exclusive statement of the
        agreement of the parties concerning the subject matter hereof, and
        supersede all previous statements, representations, and agreements
        concerning the subject matter hereof.

DATED as of the first date above written.


                             CRL NETWORK SERVICES, INC.:

                                            By:  /s/    JIM  COUCH
                                               --------------------------------
                                                 Name:  Jim Couch
                                                 Title: President / CEO

                                                 Date: October 10, 1997

                             QWEST COMMUNICATIONS CORPORATION:

                                            By:  /s/  GREG  CASEY
                                               --------------------------------
                                                 Name:  Greg Casey
                                                 Title: Sr. Vice President,
                                                        Carrier Markets

                                                 Date: October 10, 1997



                              Qwest Communications





                                       11
<PAGE>   12

QCC Standard Private Line



                                    EXHIBITS

Exhibit A:     Service and Pricing Exhibit to Qwest Private Line Services
               Agreement consisting of seven (7) pages, dated October 10, 1997
               as well as the following Schedules attached thereto:


<TABLE>
<CAPTION>
               Schedule to Exhibit A                     Pages
               ---------------------                     -----
<S>                                                     <C>
               "A-1" Circuit Listing                       1
               "A-2" Interval Guidelines                   1
               "A-3" Technical Specifications              2
</TABLE>






                              Qwest Communications



                                       12
<PAGE>   13

QCC Standard Private Line



                                   EXHIBIT "A"
                                       TO
                              QWEST COMMUNICATIONS
                         PRIVATE LINE SERVICES AGREEMENT

                           SERVICE AND PRICING EXHIBIT



        This Service and Pricing Exhibit (this "Service and Pricing Exhibit") is
made as of October 10, 1997 with respect to Service Agreement No.
PL-0000346-9710-01-01 (the "SERVICE AGREEMENT") by and between Qwest
Communications Corporation, a Delaware corporation ("Qwest"), and CRL Network
Services, Inc., a California corporation ("CUSTOMER").

1.      QWEST SERVICES:

        1.1    During the Term of the Agreement, Qwest will provide to Customer
               the Facility or Facilities requested by Customer in a Service
               Order accepted by Qwest.

        1.2    Upon acceptance of a Service Order, Qwest shall notify Customer
               of its target date for the delivery of each Facility (the
               "ESTIMATED AVAILABILITY DATE"). Any Estimated Availability Date
               given by Qwest to Customer shall be subject to Qwest's standard
               and expedited interval guidelines, as amended by Qwest from time
               to time (the "INTERVAL GUIDELINES"). A copy of Qwest's current
               Interval Guidelines are attached hereto as EXHIBIT "A-2" Qwest
               shall use reasonable efforts to install each such Facility on or
               before the Estimated Availability Date, but the inability of
               Qwest to deliver a Facility by such date shall not be a Default
               under this Agreement. If Qwest fails to make any DS-1 or DS-3
               Facility available within sixty (60) days after acceptance by
               Qwest of the Service Order with respect to such Facility (or such
               greater time as is set forth in the Interval Guidelines), or if
               Qwest fails to make any Optical Circuit Facility available within
               ninety (90) days after acceptance by Qwest of the Service Order
               with respect to such Facility (or such greater time as is set
               forth in the Interval Guidelines), Customer's sole remedy shall
               be to cancel the Service Order which pertains to such Facility by
               ten (10) calendar days prior written notice to Qwest, as is set
               forth in Section 8.3 of the Service Agreement.

        1.3    At each end of the city pairs (the "CITY PAIRS") on which
               Customer orders Facilities, Qwest shall provide appropriate
               equipment in its terminal locations necessary to connect the
               Facilities to Customer's Interconnection Facilities (as defined
               in Section 1.4 of this Service and Pricing Exhibit). If Customer
               desires to install its own equipment in one or more of Qwest's
               terminals, and Qwest, in its sole discretion, agrees to such
               installation, the parties shall execute the Collocation
               Agreement.



                              Qwest Communications

<PAGE>   14

QCC Standard Private Line



        1.4    Customer agrees that Customer's Interconnection Facilities shall
               connect to the Facilities provided by Qwest hereunder at the
               network interface points located in the Qwest terminals and
               defined in the Specifications (as defined in Section 2.1 of this
               Service and Pricing Exhibit). As used herein, the term
               "Interconnection Facilities" shall mean transmission capacity
               provided by Customer or its third party supplier to extend the
               Facilities provided by Qwest from a Qwest terminal to any other
               location (e.g., a local access telephone service provided by a
               local telephone company).

        1.5    Qwest shall use reasonable efforts to order Interconnection
               Facilities on behalf of Customer from Customer's designated
               supplier, provided that Customer furnishes Qwest with an
               acceptable letter of agency. Customer shall be billed directly by
               the supplier of such Interconnection Facilities, and shall hold
               harmless and indemnify Qwest from any loss or liability incurred
               by Qwest as a result of Qwest's ordering Interconnection
               Facilities from any third party. Customer may, at its election,
               but subject to Qwest's prior written approval, order its own
               Interconnection Facilities. If any party other than Qwest
               provides Interconnection Facilities, then unavailability,
               incompatibility, delay in installation, or other impairment of
               Interconnection Facilities shall not excuse Customer's obligation
               to pay Qwest all Rates or charges applicable to the Facilities,
               whether or not such Facilities are useable by Customer.

2.      START OF SERVICES:

        2.1    Start of service for each Facility (the "Start of Service Date")
               shall begin on the date on which Customer accepts delivery of
               such Facility. If Customer fails to give written notice that the
               Facility is in material non-compliance with the applicable
               standard Qwest network specifications, as modified from time to
               time by Qwest (the "SPECIFICATIONS") within five (5) business
               days after notification to Customer by Qwest that the Facility is
               available, Customer shall be deemed to have accepted such
               Facility, and the Start of Service Date shall commence as of the
               fifth day following such notification by Qwest. Following notice
               by Customer of material non-compliance as set forth above, Qwest
               shall promptly take such reasonable action as is necessary to
               correct any such non-compliance in the Facility and shall, upon
               correction, notify Customer of a new Start of Service Date.

        2.2    Notwithstanding anything in Section 2.1 of this Service and
               Pricing Exhibit to the contrary, Customer may delay the Start of
               Service Date for any Facility for up to thirty (30) days from
               Qwest's Estimated Availability Date by written notice to Qwest at
               least seventy-two (72) hours prior to any applicable Estimated
               Availability Date.




                              Qwest Communications



                                       2
<PAGE>   15
QCC Standard Private Line



3.      RATES:

        3.1    Qwest shall provide the Facilities at the rates (the "RATES") set
               forth in this Section 3 (exclusive of all sales, use, commercial
               or other taxes or license fees) and as shown on the Circuit
               Listing attached as Schedule "A-I" to this Service and Pricing
               Exhibit. The Rates for each Facility also include certain Monthly
               Recurring and Non-Recurring charges, all as defined in this
               Section 3. Finally, the Rates vary depending on whether the
               Facilities are DS-1 or DS-3. Rates do not include local access
               connectivity. The Rates shall be as follows:

                                 ON-NET SERVICE


<TABLE>
<CAPTION>
               FACILITY TYPE:            V & H MILES:          RATE PER DS-0 V & H MILES:
<S>                                     <C>                    <C>
               DS-1                        0-199                         $[**]
                                           200+                          $[**]
                                                                   
               DS-3                        0-199                         $[**]
                                           200+                          $[**]
</TABLE>


                                 OFF-NET SERVICE

                           Individual Case Basis (ICB)

(a)     DS-1 FACILITIES RATES FOR IXC:

        (i)    DS-1 MONTHLY RECURRING CHARGES:

        Minimum charge per DS-1 per month:  $[**]

        (ii)   DS-1 NON-RECURRING CHARGES:

               $[**] installation charge per DS-1.

(b)     DS-3 FACILITIES RATES FOR IXC:

        (i)    BASE IXC RATES: To be determined by Qwest on a case-by-case
               basis, subject to availability from Qwest.

        (ii)   DS-3 MONTHLY RECURRING CHARGES: Minimum charges per DS-3 per
               month: $[**]

        (iii)  DS-3 NON-RECURRING CHARGES:


[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and
     Exchange Commission.


                              Qwest Communications


                                       3
<PAGE>   16

QCC Standard Private Line



               $[**] installation charge per DS-3 for all services and
               equipment, or $[**] for 1 year term, or waived for 2 year
               term.

        (c)    OTHER CHARGES:

        In addition to the foregoing Facilities Rates for DS-1 and DS-3
        Facilities for IXC, Customer shall pay to Qwest the following additional
        charges, as applicable, including any and all recurring charges imposed
        on Qwest for the handling of calls under this agreement:

        (i)    OTHER MONTHLY RECURRING CHARGES:

        -       Mux charges:                   DS-3 MUX $[**] each

        -       Channel Bank:                  each $[**] per month

        -       DS-1 cross-connect charges:    each $[**] month plus any
                                               pass-through charges.

        -       DS-3 cross-connect charges:    each $[**]

        -       Cross-connect charges:         to another CAPS provider
                                               $[**] each

        -       LTR charges:                   charges incurred by LECs
                                               will be passed through to
                                               customer to be paid by
                                               customer.

        (ii)   OTHER NON-RECURRING CHARGES:

        -       Expedited Order Charges:       $[**] each.

        -       Mux charges:                   $[**] per DS3 mux.

        -       DACs rearrangements:           each $[**] per DS-1

        -       Channel Bank:                  each $[**] installation

        -       DS-1 cross-connect charges:    each $[**] installation
                                               plus any pass-through charges
        -       Change of order 
                cross-connect charges:         $[**] each DS-3, $[**]
                                               each DS-1

        -       Pre-engineering cancellation
                cross-connect:                 $[**] each DS-3, $[**]
                                               each DS-1

        -       Post-engineering
                cancellation of cross-connect: $[**] each DS-3, $[**]
                                               each DS-1



[**] Pursuant to a request for confidential treatment, price information in this
     document has been omitted and separately filed with the Securities and
     Exchange Commission.



                              Qwest Communications



                                       4
<PAGE>   17

QCC Standard Private Line



3.2     (INTENTIONALLY DELETED)

        4.     FACILITY MINIMUM SERVICE TERM:

        4.1    Customer acknowledges that the Rates and charges described in
               Section 3 of this Service and Pricing Exhibit are based on the
               commitment of Customer to utilize the Facilities for a specified
               minimum period of time. Therefore, notwithstanding anything in
               this Agreement to the contrary, Customer shall be liable for and
               shall pay to Qwest all Rates, fees and charges which accrue under
               this Agreement for each Facility for the entire Facility Minimum
               Service Term (as defined in Section 4.2 of this Service and
               Pricing Exhibit) applicable to each such Facility, regardless of
               whether or not Customer utilizes all or any part of such Facility
               during all or any part of the Facility Minimum Service Term
               applicable to such Facility, except as is set forth in Section
               4.3 of this Service and Pricing Exhibit.

        4.2     The "FACILITY MINIMUM SERVICE TERM" for each Facility, is
                defined as follows:

                      (a)    Twelve (12) months from Start of Service Date for
                             DS-1 Facilities.

                      (b)    Twelve (12) months from Start of Service Date for
                             DS-3 Facilities.

        4.3    Notwithstanding anything in this Agreement to the contrary,
               Customer's obligation to pay all Rates, fees and charges which
               accrue under this Agreement for each Facility for the entire
               Facility Minimum Service Term applicable to each such Facility
               shall terminate, as each such Facility, if this Agreement is
               terminated during the Minimum Service Term which pertains to each
               such Facility: (a) by Customer, pursuant to Sections 8.1(a) or
               (b) of the Service Agreement, following a Default by Qwest or an
               increase in prices; or (b) by Qwest, pursuant to Section 3.2(b)
               of the Service Agreement, if termination by Qwest during the
               Minimum Service Term as to the Facility occurs other than because
               of a Default by Customer, or 8.2(c) of the Service Agreement, if
               Qwest terminates this Agreement because Qwest loses any required
               permits. Upon termination of this Agreement for any other reason-
               the total of all charges referred to in this Section 4 shall be
               at once due and payable, regardless of whether or not all of the
               Facilities Minimum Service Terms have expired and may be
               collected by Qwest from Customer as a single amount.

5       OUTAGE CREDITS:

        5.1    Customer acknowledges the possibility of an unscheduled,
               continuous and/or interrupted period of time when a Facility or
               Facilities are "UNAVAILABLE" (as



                              Qwest Communications

                                       5
<PAGE>   18

QCC Standard Private Line



                defined in the Specifications) (hereafter an "OUTAGE"). In the
                event of an Outage, Customer shall be entitled to a credit (the
                "OUTAGE CREDIT") determined according to the following formula:


<TABLE>
<S>                                        <C>                                                 
          OUTAGE CREDIT = HOURS OF OUTAGE - 2 HOURS X TOTAL MONTHLY CHARGE OF AFFECTED FACILITY 
                          ---------------
                             720 HOURS
</TABLE>

        5.2    The Outage Credit shall apply to the charges for the total
               mileage between end terminals of any Facility affected by an
               Outage; provided, however, that if any portion of the affected
               Facility remains beneficially used or useable by Customer between
               any intermediate terminals (where Customer has installed drop and
               insert capability) or end terminals, the Outage Credit shall not
               apply to that pro-rata portion of the mileage. The length of each
               Outage shall be calculated in hours and shall include fractional
               portions thereof. An Outage shall be deemed to have commenced
               upon verifiable notification thereof by Customer to Qwest, or,
               when indicated by network control information actually known to
               Qwest network personnel, whichever is earlier. Each Outage shall
               be deemed to terminate upon restoration of the affected Facility
               as evidenced by appropriate network tests by Qwest. Qwest shall
               give notice to Customer of any scheduled outage as early as is
               practicable, and a scheduled outage shall under no circumstance
               be viewed as an Outage hereunder.

        5.3    Outage Credits shall not be granted if the malfunction of any
               end-to-end circuit is due to an Outage or other Defect occurring
               in Customer's Interconnection Facilities.

        5.4    All Outage Credits shall be credited on the next monthly invoice
               for the affected Facility after receipt of Customer's request for
               credit. The total of all Outage Credits applicable to or accruing
               in any given month shall not exceed the amount payable by
               Customer to Qwest for that same month for such Facility.

        5.5    The Outage Credit described in this Section 5 of this Service and
               Pricing Exhibit shall be the sole and exclusive remedy of
               Customer in the event of any Outage, and under no circumstance
               shall an outage be deemed a Default under this Agreement.



                              Qwest Communications




                                       6
<PAGE>   19

QCC Standard Private Line



        DATED AS OF the first date above-written.


                            CRL NETWORK SERVICES, INC.:

                                     By:
                                        ---------------------------------------
                                        Name:  Jim Couch
                                        Title: President / CEO

                                        Date:
                                             ----------------------------------

                            QWEST COMMUNICATIONS CORPORATION:

                                     By:     /s/ GREG CASEY
                                        ---------------------------------------
                                        Name:  Greg Casey
                                        Title: Sr. Vice President, 
                                               Carrier Markets

                                              
                                        Date:      10/16/97
                                             ----------------------------------


                              Qwest Communications



                                       7
<PAGE>   20

QCC Standard Private Line

                                 SCHEDULE "A-1"
                                 CIRCUIT LISTING

                 (SEE ATTACHED EXHIBIT REPORT OR SERVICE ORDER)

   (IF THE ABOVE IS NOT PRESENT, WAITING ON CUSTOMER TO SEND SERVICE ORDER.)




                                       1
<PAGE>   21

QCC Standard Private Line

                           SCHEDULE "A-2" TO EXHIBIT A

- --------------------------------------------------------------------------------
                     STANDARD & EXPEDITE INTERVAL GUIDELINES
- --------------------------------------------------------------------------------

        These are the standard order intervals for Qwest's domestic services. If
you have any questions regarding the interval process, please contact your Sales
Director.


<TABLE>
<CAPTION>
                                                   TOTAL SERVICE INTERVAL
                                                     IN CALENDAR DAYS
                                                -----------------------------
SERVICE TYPE                                    STANDARD             EXPEDITE
- ------------                                    --------             --------
<S>                                             <C>                  <C>
OPTICAL:
POP TO POP (OC-3)                                 28                   ICB
POP TO POP (ALL OTHERS)                           ICB                  ICB
LOA PROVIDER                                      ICB                  ICB
LEC TO LEC                                        ICB                  ICB
CAP TO CAP                                        ICB                  ICB
CAP TO LEC                                        ICB                  ICB
CROSS CONNECTS                                    ICB                  ICB

DS-3:
POP TO POP                                        24                   ICB
LOA PROVIDED                                      30                   ICB
LEC TO LEC                                        30                   ICB
CAP TO CAP                                        30                   ICB
CAP TO LEC                                        30                   ICB
CROSS CONNECTS                                    14                   ICB
DS-1:
POP TO POP                                        21                   ICB
LOA PROVIDED                                      25                   ICB
LEC TO LEC                                        28                   ICB
CAP TO CAP                                        28                   ICB
CAP TO LEC                                        28                   ICB
CROSS CONNECTS                                    14                   ICB
</TABLE>

ALL INTERVALS ARE SUBJECT TO NETWORK CAPACITY AND LEC FACILITY AVAILABILITY.

"ICB" means "Individual Case Basis" 
"POP TO POP" means Qwest controls CFA.
CAP's:  No optical interface anywhere except with MFS & TCG in Los Angeles.
Equipment Plug-ins:  Add 2 days.

- --------------------------------------------------------------------------------



                                       1
<PAGE>   22

QCC Standard Private Line

                            SCHEDULE A-3 TO EXHIBIT A
                                       TO
               QWEST COMMUNICATIONS PRIVATE LINE SERVICE AGREEMENT

                            TECHNICAL SPECIFICATIONS

1.      INTERCONNECT SPECIFICATIONS:

        1.1     The customer interconnection point of DS-1 & DS-3 signals at the
                Qwest (SPT) location will be at an industry standard (DSX-1) &
                (DSX-3) digital cross-connect panels and will be referred to as
                Qwest Network Interface in this document.

        1.2     The DS-1 & DS-3 signals terminating at the Qwest digital
                cross-connect panels will meet the electrical specifications as
                defined in AT&T Compatibility Bulletin (CB) No. 119, Issue 3,
                October, 1979.

        1.3     The Qwest Digital Network will be compatible with the Bell
                System hierarchical clock synchronization methods and stratum
                levels as described in Bellcore Technical Advisory
                (TA-NPL-000436).

        1.4     Customer equipment must also meet the interconnect
                specifications listed above and shall comply with jitter
                requirements of AT&T Technical Reference PUB 63411.

2.      PERFORMANCE OBJECTIVES:

        2.1     DS-1 and DS-3 circuit performance will be measured using two
                parameters: Availability and Error-Free Seconds.

        2.2     Availability is a measure of the relative amount of time during
                which the circuit is available for use. According to CCITT and
                ANSI definitions, unavailability begins when the Bit Error Ratio
                (BER) in each second is worse than 1.0 E-3 for a period of 10
                consecutive seconds.

        2.3     The availability objective for DS-1 and DS-3 circuits between
                Qwest Network Interface points specified above is to provide a
                performance level of 99.85% over a 12 month period. This
                excludes any customer provided access links to the Qwest digital
                network.

        2.4     Outages attributable to incidental damage to or severage of
                outside fiber optic cable plant, or scheduled maintenance is
                excluded from the performance objective stated above.

        2.5     Error-Free Seconds (EFS) and Error Seconds (ES) are the primary
                measure of error performance. An Error-Free Second is defined as
                any second in which no 




                                       1
<PAGE>   23

QCC Standard Private Line

                bit errors are received Conversely, an Error Second is any
                second in which one or more bit errors are received.

3.      ACCEPTANCE CRITERIA

        The acceptance criteria for DS-1 and DS-3 circuits between Qwest Network
Interface points is to provide the performance levels shown below during a 60
minute test period. If no errors are observed during the first 15 minutes of the
test, the facility may be considered acceptable. Access connections to customer
location will be tested in accordance with Bell Publication 62508.


<TABLE>
<CAPTION>
    -------------------------------------------------------------------------------
          ONE-WAY CIRCUIT             DS-3              DS-1
              MILEAGE                  EFS              EFS                BER
<S>       <C>                         <C>               <C>             <C>
                0 - 250                99%              99.7%           6 x 10 (-10)

             250 - 1000                98%              99.5%           5 x 10 (-10)

            1000 - 4000                96%              99.0%           1 x 10 (-10)
    -------------------------------------------------------------------------------
</TABLE>


4.      OTHER SERVICE OFFERINGS:

        4.1     MULTIPOINT-64, 56 KBPS AND FRACTIONAL DS-1 SERVICES are based on
                standard 64 Kbps PCM coding and are designed to meet the DS-1
                performance objectives above.

        4.2     VOICEPAK AND MULTIPOINT-32 service deploy ADPCM transcoders
which transform standard DS-1 signals into compressed format utilizing 32 Kbps
instead of 64 Kbps PCM coding techniques. These systems are not suitable for
data applications.



                                       2

<PAGE>   24
[QWEST LOGO}                                                    CARRIER SERVICES
                                                   PRIVATE LINE -- SERVICE ORDER


Customer Order Number 
                      -----------------
Order Date:         Requested Due Date:         Sales Person: Keith Collins
            -------                     ------                ------------------
                              BILLING INFORMATION
Function Code: [ ] New   [ ] Change  [ ] Revision  [ ] Supplement [ ] Disconnect
Expedite: [ ] Yes  [ ] No  Charge ** per circuit Approval - Customer Initial
                                                                            --
EXPEDITE FEE WILL NOT BE WAIVED.
Contract Term: [X] 12M  [ ] 24M  [ ] 36M  [ ] 48M  [ ] 60M

Customer Name: CRL Network Service                 Cust. #:
              -----------------------------------          ---------------------
Billing Address:
                ----------------------------------------------------------------
City:                            State:                   Zip:
      --------------------------        -----------------      -----------------
Billing Contact:                 Phone:                   Fax:
                 ---------------        -----------------      -----------------
Order Contact:                   Phone:                   Fax:
               -----------------        -----------------      -----------------

<TABLE>
<CAPTION>
                                                        SERVICE INFORMATION
Service                City           City
 Type     V&H       Originating    Terminating         Qty.      Unit MRC       Total MRC      Unit NRC       Total NRC
- ------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>            <C>                 <C>       <C>            <C>            <C>            <C>     
 DS-3     944          SFO             DEN               1         **             **             **             **
- ------------------------------------------------------------------------------------------------------------------------
 DS-3     794          DEN             STL               1         **             **             **             **
- ------------------------------------------------------------------------------------------------------------------------
 DS-3     260          STL             CHI               1         **             **             **             **
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                                         <C>
ORIGINATING ACCESS TYPE                                     TERMINATING ACCESS TYPE
Access: [ ] Cust. Ordered (CFA/LOA)                         Access: [ ] Cust. Ordered (CFA/LOA)
        [ ] QCC Ordered                                             [ ] QCC Ordered

Site:                                                       Site:                                                   
      ------------------------------------------------            ------------------------------------------------
Address:                                                    Address:
         ---------------------------------------------               ---------------------------------------------
City:                 State:          Zip:                  City:                 State:          Zip:
      ---------------        --------      -----------            ---------------        --------      -----------
Ops. Contact:                        Phone:                 Ops. Contact:                        Phone:
              ----------------------        ----------                    ----------------------        ----------
Alternate:                 Phone:                           Alternate:                  Phone:
           ---------------        --------------------                 ---------------        --------------------
ACCESS PROVIDER:                                            ACCESS PROVIDER:
                 ----------------                                            ----------------
QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF                 QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF
DLR TO COMPLETE CIRCUIT INSTALLATION.                       DLR TO COMPLETE CIRCUIT INSTALLATION.
Special Remarks/Comments: 90 day take or pay contract       Special Remarks/Comments: Due Dates: SFO-DEN due 3 weeks 
begins 1st day of billing - billing begins with             after receipt of order. DEN-STL 5/15/98; STL-CHI 7/5/98.
installation of last circuit - ** days free service  
for each day circuit install delayed by Qwest.
</TABLE>

                               SIGNATURE/APPROVAL

This Service Order is subject to and governed by the terms and conditions set 
forth in Customer's Private Line Service Agreement. Your signature acknowledges 
that you have read, understand and accept such terms and conditions and that 
you are duly authorized to execute and deliver this Service Order. This Service 
Order shall not become a valid and binding obligation of Qwest until this 
Service Order has been executed by an authorized representative of Qwest.

<TABLE>
<S>                                     <C>
For Customer By: James Couch            For Qwest By:
                 ---------------                      --------------------------
Signature: /s/ JAMES COUCH              Signature:
           ---------------------                   -----------------------------
Title: Pres.                            Title: 
       -------------------------               ---------------------------------
</TABLE>
 
[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.




<PAGE>   25
[QWEST LOGO}                                                    CARRIER SERVICES
                                                   PRIVATE LINE -- SERVICE ORDER


Customer Order Number 
                      -----------------
Order Date: 3/30/98 Requested Due Date:         Sales Person: Keith Collins
            -------                     ------                ------------------
                              BILLING INFORMATION
Function Code: [ ] New   [ ] Change  [ ] Revision  [ ] Supplement [ ] Disconnect
Expedite: [ ] Yes  [ ] No  Charge ** per circuit Approval - Customer Initial
                                                                            --
EXPEDITE FEE WILL NOT BE WAIVED.
Contract Term: [X] 12M  [ ] 24M  [ ] 36M  [ ] 48M  [ ] 60M

Customer Name: CRL Network Services                Cust. #:
              -----------------------------------          ---------------------
Billing Address:
                ----------------------------------------------------------------
City:                            State:                   Zip:
      --------------------------        -----------------      -----------------
Billing Contact:                 Phone:                   Fax:
                 ---------------        -----------------      -----------------
Order Contact:                   Phone:                   Fax:
               -----------------        -----------------      -----------------
<TABLE>
<CAPTION>
                                                        SERVICE INFORMATION
Service                City           City
 Type     V&H       Originating    Terminating         Qty.      Unit MRC       Total MRC      Unit NRC       Total NRC
- ------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>            <C>                 <C>       <C>            <C>            <C>            <C>     
 DS-3     593          CHI             DCA               1          **              **             **             **
- ------------------------------------------------------------------------------------------------------------------------
 DS-3     544          STL             DAL               1          **              **             **             **
- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                                         <C>
ORIGINATING ACCESS TYPE                                     TERMINATING ACCESS TYPE
Access: [ ] Cust. Ordered (CFA/LOA)                         Access: [ ] Cust. Ordered (CFA/LOA)
        [ ] QCC Ordered                                             [ ] QCC Ordered

Site:                                                       Site:                                                   
      ------------------------------------------------            ------------------------------------------------
Address:                                                    Address:
         ---------------------------------------------               ---------------------------------------------
City:                 State:          Zip:                  City:                 State:          Zip:
      ---------------        --------      -----------            ---------------        --------      -----------
Ops. Contact:                        Phone:                 Ops. Contact:                        Phone:
              ----------------------        ----------                    ----------------------        ----------
Alternate:                 Phone:                           Alternate:                  Phone:
           ---------------        --------------------                 ---------------        --------------------
ACCESS PROVIDER:                                            ACCESS PROVIDER:
                 ----------------                                            ----------------
QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF                 QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF
DLR TO COMPLETE CIRCUIT INSTALLATION.                       DLR TO COMPLETE CIRCUIT INSTALLATION.
Special Remarks/Comments: 90 day take or pay contract       Special Remarks/Comments: Due Dates: CHI-DCA 7/5/98;
begins 1st day of billing - billing begins with             STL-DAL 5/15/98
installation of last circuit - ** days free service for
each day circuit install delayed by Qwest.
</TABLE>

                               SIGNATURE/APPROVAL

This Service Order is subject to and governed by the terms and conditions set 
forth in Customer's Private Line Service Agreement. Your signature acknowledges 
that you have read, understand and accept such terms and conditions and that 
you are duly authorized to execute and deliver this Service Order. This Service 
Order shall not become a valid and binding obligation of Qwest until this 
Service Order has been executed by an authorized representative of Qwest.

<TABLE>
<S>                                     <C>
                 
For Customer By: James Couch            For Qwest By:
                 ---------------                      --------------------------
Signature: /s/ JAMES COUCH              Signature:
           ---------------------                   -----------------------------
Title: Pres.                            Title: 
       -------------------------               ---------------------------------
</TABLE>
 
[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.





<PAGE>   26
[QWEST LOGO}                                                    CARRIER SERVICES
                                                   PRIVATE LINE -- SERVICE ORDER


Customer Order Number 
                      -----------------
Order Date:         Requested Due Date:         Sales Person: 
            -------                     ------                ------------------
                              BILLING INFORMATION
Function Code: [ ] New   [ ] Change  [ ] Revision  [ ] Supplement [ ] Disconnect
Expedite: [ ] Yes  [ ] No  Charge ** per circuit Approval - Customer Initial
                                                                              --
EXPEDITE FEE WILL NOT BE WAIVED.
Contract Term: [ ] 12M  [ ] 24M  [ ] 36M  [ ] 48M  [ ] 60M
                                   
Customer Name:                                     Cust. #:
              -----------------------------------          ---------------------
Billing Address:
                ----------------------------------------------------------------
City:                            State:                   Zip:
      --------------------------        -----------------      -----------------
Billing Contact:                 Phone:                   Fax:
                 ---------------        -----------------      -----------------
Order Contact:                   Phone:                   Fax:
               -----------------        -----------------      -----------------

<TABLE>
<CAPTION>
                                                        SERVICE INFORMATION
Service                City           City
 Type     V&H       Originating    Terminating         Qty.      Unit MRC       Total MRC      Unit NRC       Total NRC
- ------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>            <C>                 <C>       <C>            <C>            <C>            <C>     
 DS-3      89          SJO             SAC               1          **              **             **             **
- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                                         <C>
ORIGINATING ACCESS TYPE                                     TERMINATING ACCESS TYPE
Access: [ ] Cust. Ordered (CFA/LOA)                         Access: [ ] Cust. Ordered (CFA/LOA)
        [ ] QCC Ordered                                             [ ] QCC Ordered

Site:                                                       Site:                                                   
      ------------------------------------------------            ------------------------------------------------
Address:                                                    Address:
         ---------------------------------------------               ---------------------------------------------
City:                 State:          Zip:                  City:                 State:          Zip:
      ---------------        --------      -----------            ---------------        --------      -----------
Ops. Contact:                        Phone:                 Ops. Contact:                        Phone:
              ----------------------        ----------                    ----------------------        ----------
Alternate:                 Phone:                           Alternate:                  Phone:
           ---------------        --------------------                 ---------------        --------------------
ACCESS PROVIDER:                                            ACCESS PROVIDER:
                 ----------------                                            ----------------
QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF                 QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF
DLR TO COMPLETE CIRCUIT INSTALLATION.                       DLR TO COMPLETE CIRCUIT INSTALLATION.
Special Remarks/Comments: Billing will not start until      Special Remarks/Comments: Credit ** days service for 
pending DS-3 network installed by Qwest. This order is      each day circuit installed delayed.
ordered under terms agreed to for DS-3 Backbone dated
6/9/98.
</TABLE>

                               SIGNATURE/APPROVAL

This Service Order is subject to and governed by the terms and conditions set 
forth in Customer's Private Line Service Agreement. Your signature acknowledges 
that you have read, understand and accept such terms and conditions and that 
you are duly authorized to execute and deliver this Service Order. This Service 
Order shall not become a valid and binding obligation of Qwest until this 
Service Order has been executed by an authorized representative of Qwest.

<TABLE>
<S>                                     <C>
                 
For Customer By: Philip Burkhart        For Qwest By: 
                 ---------------                      --------------------------
Signature: /s/ PHILIP BURKHART          Signature: 
           ---------------------                   -----------------------------
Title: V.P./G.M.                        Title: 
       -------------------------               ---------------------------------
</TABLE>
 
[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.





<PAGE>   27
[QWEST LOGO}                                                    CARRIER SERVICES
                                                   PRIVATE LINE -- SERVICE ORDER


Customer Order Number 
                      -----------------
Order Date: 6/9/98  Requested Due Date: ASAP   Sales Person: Collins
            ------                      ------               ------------------
                              BILLING INFORMATION
Function Code: [X] New   [ ] Change  [ ] Revision  [ ] Supplement [ ] Disconnect
Expedite: [ ] Yes  [ ] No  Charge ** per circuit Approval - Customer Initial
                                                                              --
EXPEDITE FEE WILL NOT BE WAIVED.
Contract Term: [X] 12M  [ ] 24M  [ ] 36M  [ ] 48M  [ ] 60M
                                       
Customer Name  CRL Network Services               Cust. #: 346
              -----------------------------------          ---------------------
Billing Address One Kearny St. Ste 1450
                ----------------------------------------------------------------
City: San Francisco              State: CA                Zip: 94108
      --------------------------        -----------------      -----------------
Billing Contact: Robyn Raschke   Phone: 415-837-5300      Fax: 415-392-9000
                 ---------------        -----------------      -----------------
Order Contact: Chris             Phone: 510-728-7000      Fax: 510-728-7001
               -----------------        -----------------      -----------------
<TABLE>
<CAPTION>
                                                        SERVICE INFORMATION
Service                City           City
 Type     V&H       Originating    Terminating         Qty.      Unit MRC       Total MRC      Unit NRC       Total NRC
- ------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>            <C>                 <C>       <C>            <C>            <C>            <C>     
 DS-3     798          DLS             CHI               1          **              **             **             **
- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                                         <C>
ORIGINATING ACCESS TYPE                                     TERMINATING ACCESS TYPE
Access: [ ] Cust. Ordered (CFA/LOA)                         Access: [X] Cust. Ordered (CFA/LOA)
        [ ] QCC Ordered                                             [ ] QCC Ordered

Site: QCC Dallas                                            Site: QCC Chicago
      ------------------------------------------------            ------------------------------------------------
Address: 2323 Bryan Street                                  Address: 20 North Wacker Ste. 656 & 614
         ---------------------------------------------               ---------------------------------------------
City: Dallas          State: TX       Zip: 75201            City: Chicago         State: IL       Zip: 
      ---------------        --------      -----------            ---------------        --------      -----------
Ops. Contact:                        Phone:                 Ops. Contact:                         Phone: 
              ----------------------        ----------                    ----------------------         ---------
Alternate:                 Phone:                           Alternate:                 Phone: 
           ---------------        --------------------                 ---------------        --------------------
ACCESS PROVIDER:                                            ACCESS PROVIDER: MFS
                ----------------                                            ----------------
QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF                 QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF
DLR TO COMPLETE CIRCUIT INSTALLATION.                       DLR TO COMPLETE CIRCUIT INSTALLATION.
Special Remarks/Comments: Use existing CRL COAX next        Special Remarks/Comments: Please provide MFS CFA for
pair available.                                             customer to order IXC cross connect
</TABLE>

                               SIGNATURE/APPROVAL

This Service Order is subject to and governed by the terms and conditions set 
forth in Customer's Private Line Service Agreement. Your signature acknowledges 
that you have read, understand and accept such terms and conditions and that 
you are duly authorized to execute and deliver this Service Order. This Service 
Order shall not become a valid and binding obligation of Qwest until this 
Service Order has been executed by an authorized representative of Qwest.

<TABLE>
<S>                                     <C>
                 
For Customer By: Philip Burkhart        For Qwest By: 
                 ---------------                      --------------------------
                   
Signature: /s/ PHILIP BURKHART          Signature: 
           ---------------------                   -----------------------------
Title: V.P./G.M.                        Title: 
       -------------------------               ---------------------------------
       
</TABLE>
 
[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.





<PAGE>   28
[QWEST LOGO}                                                    CARRIER SERVICES
                                                   PRIVATE LINE -- SERVICE ORDER


Customer Order Number 
                      -----------------
Order Date: 6/9/98  Requested Due Date: ASAP   Sales Person: Collins
            -------                     ------                ------------------

                              BILLING INFORMATION
Function Code: [X] New   [ ] Change  [ ] Revision  [ ] Supplement [ ] Disconnect
Expedite: [ ] Yes  [ ] No Charge ** per circuit Approval - Customer Initial
                                                                           --
EXPEDITE FEE WILL NOT BE WAIVED.
Contract Term: [X] 12M  [ ] 24M  [ ] 36M  [ ] 48M  [ ] 60M

Customer Name  CRL Network Services               Cust. #: 
              -----------------------------------          ---------------------
Billing Address  One Kearny St. Ste. 1450
                ----------------------------------------------------------------
City:  San Francisco             State: CA                Zip: 94108
      --------------------------        -----------------      -----------------
Billing Contact: Robyn Raschke   Phone: 415-837-5300      Fax: 415-392-9000
                 ---------------        -----------------      -----------------
Order Contact: Chris             Phone: 510-728-7000      Fax: 510-728-7001
               -----------------        -----------------      -----------------

<TABLE>
<CAPTION>
                                                        SERVICE INFORMATION
Service                City           City
 Type     V&H       Originating    Terminating         Qty.      Unit MRC       Total MRC      Unit NRC       Total NRC
- ------------------------------------------------------------------------------------------------------------------------
<S>       <C>       <C>            <C>                 <C>       <C>            <C>            <C>            <C>     
 DS-3      659         DEN             DLS               1          **              **             **             **
- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<S>                                                         <C>
ORIGINATING ACCESS TYPE                                     TERMINATING ACCESS TYPE
Access: [ ] Cust. Ordered (CFA/LOA)                         Access: [ ] Cust. Ordered (CFA/LOA)
        [ ] QCC Ordered                                             [ ] QCC Ordered

Site: QCC Denver                                            Site: QCC Dallas
      ------------------------------------------------            ------------------------------------------------
Address: 910 15th Street Ste. 200                           Address: 2323 Bryan Street
         ---------------------------------------------               ---------------------------------------------
City: Denver          State: CO       Zip: 80202            City: Dallas          State: TX       Zip: 75201
      ---------------        --------      -----------            ---------------        --------      -----------
Ops. Contact:                        Phone:                 Ops. Contact:                        Phone:
              ----------------------        ----------                    ----------------------        ----------
Alternate:                 Phone:                           Alternate:                  Phone:
           ---------------        --------------------                 ---------------        --------------------
ACCESS PROVIDER:                                            ACCESS PROVIDER:
                 ----------------                                            ----------------
QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF                 QCC REQUIRES 5 WORKING DAYS FROM RECEIPT OF
DLR TO COMPLETE CIRCUIT INSTALLATION.                       DLR TO COMPLETE CIRCUIT INSTALLATION.
Special Remarks/Comments: Use existing CRL COAX next        Special Remarks/Comments: Use existing CRL COAX next 
pair available.                                             pair available.                    
                                                     
6/9/98.
</TABLE>

                               SIGNATURE/APPROVAL

This Service Order is subject to and governed by the terms and conditions set 
forth in Customer's Private Line Service Agreement. Your signature acknowledges 
that you have read, understand and accept such terms and conditions and that 
you are duly authorized to execute and deliver this Service Order. This Service 
Order shall not become a valid and binding obligation of Qwest until this 
Service Order has been executed by an authorized representative of Qwest.

<TABLE>
<S>                                     <C>
For Customer By: Philip Burkhart        For Qwest By: 
                 ---------------                      --------------------------
Signature: /s/ PHILIP BURKHART          Signature: 
           ---------------------                   -----------------------------
Title: V.P./G.M.                        Title: 
       -------------------------               ---------------------------------
</TABLE>
 
[**] Pursuant to a request for confidential treatment, price information in 
     this document has been omitted and separately filed with the Securities 
     and Exchange Commission.






<PAGE>   1
                                                                    EXHIBIT 23.2

INDEPENDENT AUDITORS' CONSENT

We consent to the use in this Amendment No. 4 to Registration Statement 
No. 333-74793 of CRL Network Services, Inc. of our report dated March 18, 1999
(April 28, 1999 as to the last paragraph in Note 12), appearing in the 
Prospectus, which is part of such Registration Statement, and to the reference 
to us under the headings "Selected  Consolidated Financial Data" and "Experts" 
in such Prospectus.

/s/ Deloitte & Touche LLP
San Francisco, California
May 18, 1999

<PAGE>   1
                                                                    EXHIBIT 23.7

                           CRL NETWORK SERVICES, INC.


                        CONSENT TO BE NAMED AND TO SERVE

        In connection with the preparation of the Registration Statement on Form
S-1 for CRL Network Services, Inc. (the "Company"), it is necessary that we
obtain from you written verification of certain information and consent to serve
and be named as a director as required to be disclosed by the Securities Act of
1933, as amended, and the rules, regulations and schedules promulgated
thereunder.

        It is requested that you fill in the answers to the following questions,
sign and date the Consent, and return one signed copy by facsimile to Gibson,
Dunn & Crutcher, Attn: Patrick Wong, facsimile number 415-986-5309 as soon as
possible. You should also keep a copy for your files.

        I consent to be a nominee to serve as a director of the Company, and if
elected, to serve in the capacity of director of the Company.

               Yes   X                     No
                   -----                      -----

        I consent to be named as a nominee for director of the Company, and if
elected, a director of the Company, as appropriate, in the Company's
Registration Statement on Form S-1.

               Yes   X                     No
                   -----                      -----

DATED:  March 19, 1999                      

                                           /s/ STEPHEN CRAIG MOTT
                                           -----------------------------
                                                 (SIGNATURE)





© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission