WINSTAR COMMUNICATIONS INC
8-K, 1997-10-29
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of Report (Date of earliest event reported)   October 7, 1997
                                                   ---------------


                          WINSTAR COMMUNICATIONS, INC.
               (Exact Name of Registrant as Specified in Charter)



         Delaware                    1-10726                    13-3585278
(State or Other Jurisdiction       (Commission                (IRS Employer
    of Incorporation)              File Number)             Identification No.)



230 Park Avenue, New York, New York                                 10169
(Address of Principal Executive Offices)                          (Zip Code)



Registrant's telephone number, including area code    (212) 584-4000


                                 Not Applicable
          (Former Name or Former Address, if Changed Since Last Report)



                             Exhibit Index -- Page 5

                                Page 1 of 4 Pages

                                                             
<PAGE>

Item 5.           Other Events.

                  Private Placement of Debt Securities

         On October 7, 1997, WinStar Communications, Inc. (the "Company") issued
an aggregate of $100 million of 15% Senior Subordinated  Deferred Interest Notes
Due 2007 (the "Senior Subordinated Notes") in an institutional private placement
(the "October 1997 Debt Placement") conducted through Credit Suisse First Boston
Corporation  ("CSFCB")  and BT  Alex  Brown  Incorporated  ("BT"),  the  initial
purchasers  of the Senior  Subordinated  Notes (the "Initial  Purchasers").  The
October 1997 Debt Placement was consummated  pursuant to a $150 million facility
the Company obtained from affiliates of the Initial  Purchasers in March 1997 in
conjunction  with the  issuance by the Company and WinStar  Equipment  Corp.,  a
wholly owned subsidiary of the Company  ("WEC"),  of $300 million of notes in an
institutional private placement conducted through the Initial Purchasers ("March
1997 Debt Placement"). The facility was completely drawn down by the issuance of
Senior  Subordinated Notes and the Company no longer has any financing available
thereunder.

         The  Senior  Subordinated  Notes  are  unsecured,  senior  subordinated
obligations  of the  Company  ranking  pari  passu with the  Company's  existing
convertible  senior  subordinated  discount  notes issued in October  1995,  are
limited to $100 million aggregate  principal amount, and will mature on March 1,
2007. Until March 1, 2002, interest on the Senior Subordinated Notes will accrue
and  compound  semiannually,  but will not be payable in cash.  Interest  on the
Accumulated Amount (as defined in the Indenture referred to below) of the Senior
Subordinated  Notes as of March 1, 2002 will be payable  semiannually in cash on
March 1 and  September 1 of each year  commencing  September 1, 2002 until final
maturity on the Senior Subordinated Notes.

         The  Proceeds  of the  Senior  Subordinated  Notes  will be used by the
Company  primarily for the expansion of its wireless  fiber services in multiple
markets  and  the  general  development  and  growth  of its  telecommunications
operations,  including:  (i) the acquisition of Roof Rights;  (ii) the hiring of
sales,  marketing,   engineering  and  customer  service  personnel;  (iii)  the
development of operating and management  systems,  acquisitions of businesses or
assets (including  additional spectrum licenses) and other capital expenditures;
and (iv) for working capital.

         The Senior Subordinated Notes were issued pursuant to, and are governed
by, the terms of an indenture (the  "Indenture")  among the Company,  as issuer,
and United States Trust Company of New York (the "Trustee"),  as trustee.  Under
the Indenture,  the Company is subject to restrictions  substantially similar to
the restrictions  contained in an indenture  between the Company and the Trustee
with  respect to certain  notes issued by the Company in October 1995 (the "1995
Notes"),  indentures  among the  Company,  WEC and the Trustee  with  respect to
certain notes issued by the Company and WEC in the March 1997 Debt Placement and
an indenture among the Company,  WinStar  Equipment II Corp.  ("WEC II") and the
Trustee  with respect to certain  notes  issued by WEC II in August  1997.  Such
restrictions  include,  among  others,  restrictions  with  respect to incurring
additional indebtedness,  the creation of liens or encumbrances,  making certain
restricted   payments   including   investments   outside   of   the   Company's
telecommunications operations, and sales of assets, in each case, of the Company
and certain of its subsidiaries, and changes of control of the Company.

         Upon  consummation  of the  October  1997 Debt  Placement,  the Company
entered  into  a  Registration   Rights  Agreement  (the  "Registration   Rights
Agreement") with the Initial Purchasers,  which requires the Company to effect a
registered exchange offer pursuant to which the Senior Subordinated Notes may be
exchanged by the holders  thereof for notes (the "Exchange  Notes") having terms
substantially identical to such exchanged Senior Subordinated Notes (except with
respect  to  transfer  restrictions).  The  Company  has  agreed to use its best
efforts to have the  registration  statement in  connection  with such  exchange
offer filed by November  21, 1997,  declared  effective  by the  Securities  and
Exchange Commission ("SEC") by March 6, 1998 and to keep the exchange offer open
for not less than 30 days (or longer if  required by  applicable  law) after the
date notice thereof is mailed to the holders of the Senior  Subordinated  Notes.
The Company has further agreed, under certain

                                                                    
                                        2

<PAGE>



circumstances,  including, among others, its failure to consummate such exchange
offer  by  April 6,  1998,  to file a shelf  registration  statement  (a  "Shelf
Registration  Statement") covering resales of the Senior Subordinated Notes, and
to keep the  Shelf  Registration  Statement  effective  until  the time when the
Senior  Subordinated  Notes  covered  thereby can be sold  without an  effective
registration  statement.  In the event of a  default  by the  Company  under the
Registration  Rights  Agreement,  additional  interest will accrue on the Senior
Subordinated  Notes from and  including the date on which any such default shall
occur,  but excluding the date on which all defaults with respect to such Senior
Subordinated Notes have been cured. Such additional  interest will be payable in
cash,  semiannually  in  arrears,  at a rate  per  annum  equal  to  .50% of the
principal amount of the Senior Subordinated Notes.

         The  Senior  Subordinated  Notes are not  redeemable  prior to March 1,
2002.  Thereafter,  the Senior  Subordinated  Notes will be  redeemable,  at the
Company's  option,  in whole  or in part,  at the  following  redemption  prices
(expressed as a percentage of the Accumulated Amount of the Senior  Subordinated
Notes at the time of redemption)  plus accrued and unpaid  interest,  if any, on
such Accumulated Amount, if redeemed during the 12-month period commencing March
1 of the years set forth below:



                                            Redemption
Year                                          Price

2002                                         107.500%
2003                                         103.750%
2004 and thereafter                          100.000%

         Pursuant to the  Indenture,  in the event of a change of control of the
Company, the Company must offer to purchase all of the Senior Subordinated Notes
then outstanding,  at a purchase price of 101% of the Accumulated Amount of such
Senior  Subordinated  Notes on the date of  purchase  plus  accrued  and  unpaid
interest (if any) on such amount to the date of purchase.

Item 7.     Financial Statements, Pro Forma Financial Information and Exhibits.

            Financial Statements.

         None.

            Pro Forma Financial Information.

         None.

                  Exhibits.

         10.1           Purchase Agreement between the Company and the Initial
                        Purchasers, dated October 7, 1997

         10.2           Indenture,  including  form  of  15%  Senior
                        Subordinated   Deferred  Interest  Note  due
                        2007, dated as of October 1, 1997

         10.3           Registration Rights Agreement, dated October 7, 1997



                                                                   
                                        3

<PAGE>



                                   SIGNATURES



                  Pursuant to the requirements of the Securities Exchange Act of
1934,  the  Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.


Dated: October 24, 1997                        WINSTAR COMMUNICATIONS, INC.
                                               ----------------------------
                                               (Registrant)


                                                /s/Timothy R. Graham
                                               ----------------------------
                                                   Timothy R. Graham,
                                                   Executive Vice President


                                                           
                                        4

<PAGE>


                                  EXHIBIT INDEX
<TABLE>
<CAPTION>


Exhibit Number                      Description
<S>                                   <C>  
         10.1                       Purchase Agreement between, the Company and the Initial
                                    Purchasers, dated October 7, 1997

         10.2                       Indenture,  including  form  of  15%  Senior
                                    Subordinated   Deferred  Interest  Note  due
                                    2007, dated as of October 1, 1997

         10.3                       Registration Rights Agreement, dated October 7, 1997
</TABLE>

                                                           
                                        5

<PAGE>


                                  $100,000,000

                          WINSTAR COMMUNICATIONS, INC.

      $100,000,000 15% Senior Subordinated Deferred Interest Notes Due 2007


                               PURCHASE AGREEMENT


                                                                October 7, 1997


CREDIT SUISSE FIRST BOSTON CORPORATION
BT ALEX BROWN INCORPORATED
   c/o Credit Suisse First Boston Corporation,
   Eleven Madison Avenue
   New York, N.Y. 10010


Ladies and Gentlemen:

         1. Introductory.  WinStar Communications,  Inc., a Delaware corporation
(the "Issuer"),  has agreed,  subject to the terms and conditions stated herein,
to issue and sell to the several initial  purchasers  named in Schedule A hereto
(the "Purchasers")  U.S.$100,000,000 principal amount of the Issuer's 15% Senior
Subordinated  Deferred Interest Notes Due 2007 (the "Offered  Securities").  The
Offered  Securities are being issued under an indenture,  dated as of October 1,
1997 (the  "Indenture"),  between the Issuer and United  States Trust Company of
New  York,  as  Trustee.  The  United  States  Securities  Act of 1933 is herein
referred to as the "Securities Act."

         As provided in Section 5(a) of this Agreement, the Issuer has agreed to
prepare  and deliver to the  Purchasers  an  offering  circular  relating to the
Offered  Securities  being purchased by the Purchasers for use by the Purchasers
in connection with the resale of the Offered Securities.  Such offering circular
is herein referred to as the "Offering Document."

         The Issuer hereby agrees with the several Purchasers as follows:

         2.  Representations and Warranties of the Issuer. The Issuer represents
and warrants to, and agrees with, the several Purchasers that:

         (a) As of its date,  the Offering  Document will not include any untrue
statement  of a material  fact or omit to state any material  fact  necessary in
order to make the statements  therein,  in the light of the circumstances  under
which they were made, not misleading.  The preceding  sentence does not apply to
statements  in or  omissions  from the  Offering  Document  based  upon  written
information furnished to the Issuer by any Purchaser through Credit Suisse First
Boston Corporation  ("CSFBC")  specifically for use therein. The Issuer's Annual
Report  on Form  10-K most  recently  filed  with the  Securities  and  Exchange
Commission (the  "Commission")  and all subsequent  reports  (collectively,  the
"Exchange Act Reports") which have been filed by the Issuer with the



<PAGE>


                                        2

Commission or sent to  stockholders  pursuant to the Securities  Exchange Act of
1934 (the "Exchange Act"),  when they were filed with the Commission,  conformed
in all material  respects to the  requirements of the Exchange Act and the rules
and  regulations  of the  Commission  thereunder.  Each of (i) the  registration
statement on Form S-4 under the  Securities  Act  (Registration  No.  333-26367)
filed by the Issuer  and  WinStar  Equipment  Corp.  on May 2, 1997,  as amended
pursuant to Amendment  No. 1 on July 22, 1997,  and Amendment No. 2 on August 5,
1997  (as  so  amended,  the  "May  S-4  Registration   Statement"),   (ii)  the
registration  statement on Form S-3 under the Securities Act  (Registration  No.
333-18465)  filed by the Issuer on December  20,  1996,  as amended  pursuant to
Amendment  No. 1 on June 10, 1997,  and Amendment No. 2 on August 5, 1997 (as so
amended, the "S-3 Registration  Statement") and (iii) the registration statement
on Form S-4 under the Securities Act  (Registration  No. 333-35961) filed by the
Issuer and WinStar  Equipment II Corp.  ("WEC-II")  on  September  19, 1997 (the
"September S-4 Registration  Statement" and,  together with the S-3 Registration
Statement,  the May S-4 Registration Statement and the Exchange Act Reports, the
"SEC Filings"),  as of the date hereof, conforms in all material respects to the
requirements  of the  Securities  Act  and  the  rules  and  regulations  of the
Commission  thereunder,  and such  registration  statement (as amended)  neither
includes any untrue statement of a material fact nor omits to state any material
fact required to be stated therein or necessary to make the  statements  therein
not misleading  (except that (i) neither the May S-4 Registration  Statement nor
the  S-3  Registration  Statement  includes  the  Issuer's  quarterly  financial
information   for  the  period  ended  June  30,  1997,  (ii)  neither  the  S-3
Registration Statement, the May S-4 Registration Statement nor the September S-4
Registration  Statement  includes a description of the Offered  Securities,  and
(iii) none of the SEC Filings  includes a description of the Company's  proposed
purchase of assets from US One Communications Corp. and its subsidiaries, or any
financing of the costs of such acquisition (the "US One Acquisition")).

         (b)  The  Issuer  has  been  duly   incorporated  and  is  an  existing
corporation  in good  standing  under  the laws of the State of  Delaware,  with
corporate  power and authority to own its properties and conduct its business as
described in the August  Offering  Document (as defined in Section  5(a)) or the
SEC  Filings;  and the  Issuer is duly  qualified  to do  business  as a foreign
corporation  in good standing in all other juris dictions in which its ownership
or lease of property or the conduct of its business requires such qualification,
except to the extent that the failure to be so qualified or be in good  standing
would not have a material adverse effect on the condition  (financial or other),
business,   properties   or  results  of   operations  of  the  Issuer  and  its
subsidiaries,  taken as a whole (a  "Material  Adverse  Effect").  The Issuer is
qualified to do business as a foreign corporation in the State of New York.

         (c) Each subsidiary of the Issuer has been duly  incorporated and is an
existing  corporation in good standing under the laws of the jurisdiction of its
incorporation,  with  corporate  power and authority to own its  properties  and
conduct its  business as described  in the August  Offering  Document or the SEC
Filings; and each subsidiary of the Issuer is duly qualified to do business as a
foreign  corporation  in good standing in all other  jurisdictions  in which its
ownership  or lease of  property or the conduct of its  business  requires  such
qualification, except to the extent that the failure to be so qualified or be in
good standing would not have a Material  Adverse  Effect;  all of the issued and
outstanding  capital  stock of each  subsidiary  of the  Issuer  has  been  duly
authorized  and  validly  issued  and is fully paid and  nonassessable;  and the
capital stock



<PAGE>


                                        3

of each subsidiary  owned by the Issuer,  directly or through  subsidiaries,  is
owned free from liens, encumbrances and defects.

         (d) Each of the Indenture  and the  Registration  Rights  Agreement (as
defined herein) has been duly  authorized,  executed and delivered;  the Offered
Securities  have been  duly  authorized;  and when the  Offered  Securities  are
delivered  and paid for  pursuant  to this  Agreement  on the  Closing  Date (as
defined  below),   such  Offered   Securities  will  have  been  duly  executed,
authenticated,  issued and  delivered;  and the Indenture  and the  Registration
Rights Agreement constitute, and such Offered Securities will constitute,  valid
and legally binding  obligations of the Issuer,  enforce able in accordance with
their  terms,   subject  to   bankruptcy,   insolvency,   fraudulent   transfer,
reorganization, moratorium and similar laws of general applicability relating to
or affecting  creditors' rights and to general equity  principles;  except that,
with respect to the  Registration  Rights  Agreement,  rights to  indemnity  and
contribution  may be  limited by federal  and state  securities  laws and public
policy considerations.

         (e) Except as  contemplated  by this  Agreement  or as disclosed in the
August Offering Document or the SEC Filings, there are no contracts,  agreements
or under  standings  between the Issuer and any person that would give rise to a
valid claim  against  the Issuer or any  Purchaser  for a brokerage  commission,
finder's  fee  or  other  like  payment  in  connection  with  the  transactions
contemplated by this Agreement.

         (f) No consent, approval,  authorization,  or order of, or filing with,
any govern mental  agency or body or any court is required for the  consummation
of the transac  tions  contemplated  by this  Agreement in  connection  with the
issuance and sale of the Offered Securities by the Issuer,  other than as may be
required  under  the  Securities  Act  and  the  Rules  and  Regulations  of the
Commission  thereunder with respect to the  Registration  Rights Agreement among
the Issuer and the Purchasers  dated the date hereof (the  "Registration  Rights
Agreement") and the  transactions  contemplated  there under, and such as may be
required by  securities or blue sky laws of any state of the United States or of
any foreign  jurisdiction  in connection  with the offer and sale of the Offered
Securities.

         (g) The  execution,  delivery and  performance  of the  Indenture,  the
Registration  Rights Agreement and this Agreement,  and the issuance and sale of
the Offered Securities and compliance with the terms and provisions thereof will
not result in a breach or  violation of any of the terms and  provisions  of, or
constitute a default under,  (i) any statute,  rule,  regulation or order of any
governmental  agency  or  body  or  any  court,  domestic  or  foreign,   having
jurisdiction  over the  Issuer or any  subsidiary  of the Issuer or any of their
properties,  (ii) any  agreement or  instrument  to which the Issuer or any such
subsidiary is a party or by which the Issuer or any such  subsidiary is bound or
to which any of the properties of the Issuer or any such  subsidiary is subject,
or (iii) the charter or by-laws of the Issuer or any such subsidiary, except, in
the case of clause (i) or (ii),  such  breaches,  violations  or  defaults  that
individually or in the aggregate would not have a Material  Adverse Effect;  and
the Issuer has full corporate  power and authority to authorize,  issue and sell
the  Offered  Securities  to be  sold  by the  Issuer  as  contemplated  by this
Agreement.

         (h)  This Agreement has been duly authorized, executed and delivered by
the Issuer.




<PAGE>


                                        4

         (i) Except as  disclosed  in the August  Offering  Document  or the SEC
Filings,  the Issuer and its subsidiaries  have good and marketable title to all
real properties and all other  properties and assets owned by them, in each case
free from liens, encumbrances and defects that would materially affect the value
thereof or materially interfere with the use made or to be made thereof by them;
and, except as disclosed in the August Offering Document or the SEC Filings, the
Issuer and its  subsidiaries  hold any leased  real or personal  property  under
valid and enforceable leases with no exceptions that would materially  interfere
with the use made or to be made thereof by them.

         (j) The  Issuer and its  subsidiaries  possess  adequate  certificates,
authorities  or permits issued by  appropriate  governmental  agencies or bodies
necessary to conduct the business now operated by them and have not received any
notice of  proceedings  relating to the revocation or  modification  of any such
certificate,  authority or permit that, individually or in the aggregate,  could
reasonably be expected to have a Material Adverse Effect.

         (k) No labor  dispute  with the  employees  of the Issuer or any of its
subsidiaries  exists or, to the knowledge of the Issuer,  is imminent that could
reasonably be expected to have a Material Adverse Effect.

         (l) The  Issuer and its  subsidiaries  own,  possess or can  acquire on
reasonable  terms,  adequate  trademarks,   trade  names  and  other  rights  to
inventions,  know-how, patents,  copyrights,  confidential information and other
intellectual property  (collectively,  "intellectual property rights") necessary
to conduct the business as now  operated by them,  or used in the conduct of the
business as now  operated by them,  except to the extent that the failure to own
or possess or the inability to acquire such  intellectual  property rights would
not  individually or in the aggregate have a Material  Adverse  Effect;  and the
Issuer has not received any notice of  infringement of or conflict with asserted
rights of others with  respect to any  intellectual  property  rights  that,  if
determined   adversely  to  the  Issuer  or  any  of  its  subsidiaries,   would
individually or in the aggregate have a Material Adverse Effect.

         (m) Except as  disclosed  in the August  Offering  Document  or the SEC
Filings,  neither the Issuer nor any of its  subsidiaries is in violation of any
statute, rule, regulation,  decision or order of any governmental agency or body
or any court,  domestic or foreign,  relating to the use, disposal or release of
hazardous or toxic  substances or relating to the  protection or  restoration of
the   environment   or  human   exposure  to  hazardous   or  toxic   substances
(collectively,  "environmental  laws"),  owns  or  operates  any  real  property
contaminated  with any substance that is subject to any  environmental  laws, is
liable for any off-site disposal or contamination  pursuant to any environmental
laws,  or is subject to any claim  relating  to any  environmental  laws,  which
violation,  contamination,  liability  or  claim  would  individually  or in the
aggregate  have a Material  Adverse  Effect;  and the Issuer is not aware of any
pending investiga tion which might lead to such a claim.

         (n) Except as  disclosed  in the August  Offering  Document  or the SEC
Filings, there are no pending actions, suits or proceedings against or affecting
the Issuer, any of its subsidiaries or any of their respective  properties that,
individually  or in the  aggregate,  could  reasonably  be  expected  to  have a
Material  Adverse Effect,  or to materially and adversely  affect the ability of
the Issuer to perform its obligations under


<PAGE>


                                        5

the Indenture, the Registration Rights Agreement or this Agreement, or which are
otherwise material in the context of the sale of the Offered Securities; and, to
the Issuer's knowledge,  no such actions, suits or proceedings are threatened or
contemplated.

         (o) The financial  statements  included or incorporated by reference in
the September S-4 Registration  Statement present fairly the financial  position
of the Issuer and its consolidated  subsidiaries as of the dates shown and their
results of operations and cash flows for the periods  shown,  and such financial
statements have been prepared in conformity with generally  accepted  accounting
principles  in  the  United  States  applied  on a  consistent  basis;  and  the
assumptions  used in preparing the pro forma  financial  statements  included or
incorporated by reference in the September S-4 Registration  Statement provide a
reasonable basis for presenting the significant effects directly attributable to
the transactions or events described therein,  the related pro forma adjustments
give appropriate effect to those assumptions,  and the pro forma columns therein
reflect  the  proper  application  of  those  adjustments  to the  corresponding
historical financial statement amounts.

         (p) Except as  disclosed  in the August  Offering  Document  or the SEC
Filings,  since the date of the latest audited financial  statements included in
the September S-4  Registration  Statement,  there has been no material  adverse
change,  nor any development or event involving a prospective  material  adverse
change, in the condition (financial or other),  business,  properties or results
of operations of either of the Issuer and its subsidiaries  taken as a whole (it
being  understood  that the US One  Acquisition,  a change in the Issuer's stock
price or the  continuation  of  operating  losses  consistent  with the Issuer's
historical  results  shall be  deemed  not to be, in and of  themselves,  such a
material  adverse  change),  and,  except as disclosed in or contemplated by the
August  Offering  Document  or the SEC  Filings,  there has been no  dividend or
distribution  of any kind  declared,  paid or made by the Issuer on any class of
its capital stock.

         (q) The Issuer is not an open-end investment  company,  unit investment
trust or face-amount certificate company that is or is required to be registered
under  Section  8 of the  United  States  Investment  Company  Act of 1940  (the
"Investment Company Act"), nor is it a closed-end investment company required to
be registered, but not registered,  thereunder; and the Issuer is not and, after
giving  effect  to the  offering  and  sale of the  Offered  Securities  and the
application  of the proceeds  thereof,  will not be an  "investment  company" as
defined in the Investment Company Act.

         (r) No  securities  of the  same  class  (within  the  meaning  of Rule
144A(d)(3) under the Securities Act) as the Offered Securities are listed on any
national  securities  exchange registered under Section 6 of the Exchange Act or
quoted in a U.S. auto mated inter-dealer quotation system.

         (s) Assuming the accuracy of the  representations and warranties of the
Purchasers contained herein, the offer and sale of the Offered Securities in the
manner  contemplated  by this  Agreement  will be exempt  from the  registration
requirements  of the  Securities  Act;  and it is not  necessary  to  qualify an
indenture  in respect of the Offered  Securities  under the United  States Trust
Indenture Act of 1939,  as amended (the "Trust  Indenture  Act"),  other than in
connection  with  the  Issuer's   obligations  under  the  Registration   Rights
Agreement.




<PAGE>


                                        6

         (t) Except for sales to or through the  Purchasers,  neither the Issuer
nor any of its affiliates, nor any person acting on its or their behalf (i) has,
within the  six-month  period prior to the date  hereof,  offered or sold in the
United  States or to any U.S.  person (as such terms are defined in Regulation S
under the  Securities  Act) the Offered  Securities  or any security of the same
class or series as the Offered  Securities  or (ii) has offered or will offer or
sell the  Offered  Securities  (A) in the United  States by means of any form of
general  solicitation or general  advertising  within the meaning of Rule 502(c)
under the  Securities  Act or (B) with  respect to any such  securities  sold in
reliance on Rule 903 of Regulation S ("Regulation  S") under the Securities Act,
by means of any directed  selling  efforts  within the meaning of Rule 902(b) of
Regulation S. The Issuer,  its  affiliates and any person acting on their behalf
have  complied and will comply with the  offering  restrictions  requirement  of
Regulation S. The Issuer has not entered and will not enter into any contractual
arrangement  with respect to the distribution of the Offered  Securities  except
for this Agreement and the Registration Rights Agreement.

         (u)  The  Issuer is subject to Section 13 or 15(d) of the Exchange Act.

         (v) The Issuer and its  subsidiaries  are in compliance in all material
respects   with   the   Communications   Act  of  1934   (as   amended   by  the
Telecommunications   Act  of  1996,  the  "Communications  Act")  and  with  all
applicable  rules,  regulations  and  policies  of  the  Federal  Communications
Commission (the "FCC").

         (w) The Issuer has  provided to the  Purchasers a complete and accurate
list of all  licenses  granted to the Issuer and its  subsidiaries  (other  than
experimental  licenses in the 31 GHz and 38 GHz  portions of the radio  spectrum
and licenses acquired from Local Area  Telecommunications,  Inc. that are not in
the 38 GHz portion of the radio  spectrum) by the FCC (the  "Licenses").  All of
the  Licenses  are  currently  valid and in full force and  effect.  Neither the
Issuer nor any of its  subsidiaries  have any  knowledge  of any  investigation,
notice of apparent liability,  violation, forfeiture or other order or complaint
issued by or before any court or regulatory  body,  including the FCC, or of any
other   proceedings   (other  than   proceedings   relating   to  the   wireless
communications  industries  generally)  which  could  in any  manner  materially
threaten or adversely  affect the validity or continued  effectiveness of any of
the Licenses.

         (x) No event has  occurred  which (i)  results  in, or after  notice or
lapse  of  time  or  both  would  result  in,  revocation,  suspension,  adverse
modification,  non-renewal,  impairment, restriction or termination of, or order
of  forfeiture  with respect to, any License or (ii)  materially  and  adversely
affects or could  reasonably be expected in the future to  materially  adversely
affect any of the rights of the Issuer or any of its subsidiaries thereunder.

         (y) The Issuer and its subsidiaries  have duly filed in a timely manner
all  material  filings,  reports,  applications,   documents,   instruments  and
information  required to be filed by them under the Communications  Act, and all
such filings are true, correct and complete in all material respects.

         (z) Neither the Issuer nor any of its  subsidiaries  have any reason to
believe that any of the Licenses will not be renewed in the ordinary course.




<PAGE>


                                        7

         3.  Purchase,  Sale and  Delivery  of  Offered  Securities;  Payment of
Underwriting  Discount.  On the  basis of the  representations,  warranties  and
agreements herein contained,  but subject to the terms and conditions herein set
forth,  the Issuer hereby agrees to sell to the  Purchasers,  and the Purchasers
hereby  agree,  severally  and not  jointly,  to purchase  from the Issuer,  the
respective  principal amounts of Offered Securities set forth opposite the names
of the Purchasers in Schedule A hereto,  at an aggregate  purchase price of $93,
914,797.81.

         The Issuer  hereby  agrees to deliver  against  payment of the purchase
price  the  Offered  Securities  in the  form  of one or more  permanent  global
securities  in  definitive  form (the "Global  Securities")  deposited  with the
Trustee as custodian for The Depository  Trust Company ("DTC") and registered in
the name of Cede & Co., as nominee for DTC.  Interests in any  permanent  Global
Securities  will be held only in book-entry  form through DTC, except in limited
circumstances (which are described in the August Offering Document). Payment for
the Offered  Securities  shall be made by the  Purchasers  in Federal (same day)
funds by wire  transfer  to an  account  previously  designated  to CSFBC by the
Issuer at a bank acceptable to CSFBC, at the office of Cravath,  Swaine & Moore,
Worldwide Plaza, 825 Eighth Avenue, New York, N.Y. 10019-7475 at 10:00 A.M. (New
York time),  on the date hereof (the "Closing  Date"),  against  delivery to the
Trustee as custodian for DTC of the Global  Securities  representing  all of the
Offered Securities.

         4.  Representations and Agreements by Purchasers; Resale by Purchasers.

         (a) Each Purchaser severally represents and warrants to the Issuer that
it is an  "accredited  investor"  within the meaning of  Regulation  D under the
Securities Act.

         (b) Each Purchaser  severally  acknowledges that the Offered Securities
have not been registered under the Securities Act and may not be offered or sold
within the United  States or to, or for the account or benefit of, U.S.  persons
except in  accordance  with  Regulation S or pursuant to an  exemption  from the
registration  requirements  of the  Securities  Act.  Each  Purchaser  severally
represents and agrees that it has offered and sold the Offered  Securities,  and
will offer and sell the Offered  Securities (i) as part of its  distribution  at
any time and (ii)  otherwise  until 40 days after the later of the com mencement
of the offering and the Closing Date,  only in accordance  with Rule 903 or Rule
144A under the Securities Act ("Rule 144A"). Accordingly, neither such Purchaser
nor its affiliates,  nor any persons acting on its or their behalf, have engaged
or will  engage in any  directed  selling  efforts  with  respect to the Offered
Securities,  and such Purchaser, its affiliates and all persons acting on its or
their  behalf  have  complied  and will comply  with the  offering  restrictions
requirement of Regulation S. Each Purchaser  severally  agrees that, at or prior
to confirmation of sale of the Offered Securities, other than a sale pursuant to
Rule 144A, such Purchaser will have sent to each  distributor,  dealer or person
receiving a selling  concession,  fee or other  remunera tion that purchases the
Offered Securities from it during the restricted period a confirmation or notice
to substantially the following effect:

         "The Securities  covered hereby have not been registered under the U.S.
         Securities Act of 1933 (the "Securities Act") and may not be offered or
         sold within the United  States or to, or for the account or benefit of,
         U.S.  persons  (i) as part of  their  distribution  at any time or (ii)
         otherwise until 40 days after the later of the date of the commencement
         of the offering and the closing date,



<PAGE>


                                        8

         except in either case in accordance with Regulation S (or Rule 144A if
         available) under the Securities Act."

Unless  otherwise  defined  herein,  terms used in this  subsection (b) have the
meanings given to them by Regulation S.

         (c) Each Purchaser  severally agrees that it and each of its affiliates
has not entered and will not enter into any contractual arrangement with respect
to the dis tribution of the Offered  Securities except for any such arrangements
with the other  Purchaser or affiliates of the other Purchaser or with the prior
written consent of the Issuer.

         (d) Each Purchaser  severally agrees that it and each of its affiliates
has not offered or sold, and will not offer or sell,  the Offered  Securities in
the  United  States  by means of any form of  general  solicitation  or  general
advertising  within  the  meaning  of Rule  502(c)  under  the  Securities  Act,
including,  but not limited to (i) any advertisement,  article,  notice or other
communication published in any newspaper, magazine or similar media or broadcast
over  television or radio,  or (ii) any seminar or meeting whose  attendees have
been invited by any general solicitation or general advertising.  Each Purchaser
severally  agrees,  with respect to resales made in reliance on Rule 144A of any
of the  Offered  Securities,  to deliver  either with the  confirmation  of such
resale or otherwise  prior to  settlement  of such resale a notice to the effect
that the resale of such Offered  Securities  has been made in reliance  upon the
exemption from the  registration  requirements of the Securities Act provided by
Rule 144A.

         (e) Each of the Purchasers  severally represents and agrees that (i) it
has not offered or sold and prior to the date six months after the date of issue
of the  Offered  Securities  will not offer or sell any  Offered  Securities  to
persons  in the  United  Kingdom  except to persons  whose  ordinary  activities
involve them in acquiring,  hold ing,  managing or disposing of investments  (as
principal  or agent)  for the  purposes  of their  businesses  or  otherwise  in
circumstances  which  have not  resulted  and will not result in an offer to the
public  in the  United  Kingdom  within  the  meaning  of the  Public  Offers of
Securities  Regulations  1995;  (ii) it has  complied  and will  comply with all
applicable  provisions  of the  Financial  Services  Act 1986  with  respect  to
anything done by it in relation to the Offered  Securities in, from or otherwise
involving the United Kingdom; and (iii) it has only issued or passed on and will
only issue or pass on in the  United  Kingdom  any  document  received  by it in
connection with the issue of the Offered Securities to a person who is of a kind
described  in  Article  11(3) of the  Financial  Services  Act 1986  (Investment
Advertisements) (Exemptions) Order 1996 or is a person to whom such document may
otherwise lawfully be issued or passed on.

         (f) Each Purchaser agrees that promptly following the completion of its
initial  resale  of all the  Offered  Securities  purchased  by  such  Purchaser
pursuant to this Agreement, it will notify the Issuer in writing thereof.

         5.  Certain Agreements of the Issuer.  The Issuer agrees with the
several Purchasers that:

         (a) The Issuer will prepare and deliver to the  Purchasers,  as soon as
reasonably practicable after the date hereof, the Offering Document, which shall
be in a form substantially  similar to the Confidential  Offering Circular dated
August 8, 1997 of the



<PAGE>


                                        9

Issuer and WEC-II (the  "August  Offering  Document"),  with such changes as are
necessary  so that such  document  does not include  material  misstatements  or
omissions.  The Issuer will advise  CSFBC  promptly of any  proposal to amend or
supplement  the  Offering  Document  and  will  not  effect  such  amendment  or
supplementation without CSFBC's consent (which consent shall not be unreasonably
withheld).  If, at any time prior to the completion of the resale of the Offered
Securities by the Purchasers, any event occurs as a result of which the Offering
Document as then amended or supplemented  would include an untrue statement of a
material fact or omit to state any material fact  necessary in order to make the
statements  therein,  in the light of the  circumstances  under  which they were
made,  not  misleading,  or if it is  necessary  at any  such  time to  amend or
supplement the Offering  Document to comply with any applicable  law, the Issuer
promptly will notify CSFBC of such event and promptly  will prepare,  at its own
expense,  an  amendment  or  supplement  which will  correct  such  statement or
omission  or  effect  such  compliance.  Neither  CSFBC's  consent  to,  nor the
Purchasers'  delivery  to  offerees  or  investors  of,  any such  amendment  or
supplement  shall  constitute  a waiver  of any of the  conditions  set forth in
Section 6.

         (b) The Issuer will furnish to CSFBC  copies of the  Offering  Document
and all  amendments and  supplements  to such document,  in each case as soon as
available and in such quantities as CSFBC  reasonably  requests,  and the Issuer
will furnish to CSFBC as soon as available three copies of the Offering Document
signed by a duly authorized officer of the Issuer, one of which will include the
independent  accountants'  reports therein  manually signed by such  independent
accountants.  At any time when the Issuer is not  subject to Section 13 or 15(d)
of the Exchange Act, such Issuer will promptly  furnish or cause to be furnished
to CSFBC (and, upon request,  to each of the other Purchasers) and, upon request
of holders and prospective purchasers of the Offered Securities, to such holders
and purchasers,  copies of the  information  required to be delivered to holders
and prospective purchasers of the Offered Securities pursuant to Rule 144A(d)(4)
under the Securities Act (or any successor provision thereto) in order to permit
compliance  with Rule 144A in  connection  with  resales by such  holders of the
Offered   Securities.   The  Issuer  will  pay  the  expenses  of  printing  and
distributing to the Purchasers all such documents.

         (c)  The  Issuer  will  use  its  best   efforts  to  arrange  for  the
qualification of the Offered  Securities for sale and the determination of their
eligibility for investment  under the laws of such  jurisdictions  in the United
States  and  Canada as CSFBC  reason  ably  designates  and will  continue  such
qualifications  in  effect so long as  required  for the  resale of the  Offered
Securities by the  Purchasers;  provided,  however,  that the Issuer will not be
required  to qualify as a foreign  corporation  or to file a general  consent to
service of process in any such state.

         (d) During the period of five years after the Closing Date,  the Issuer
will furnish to CSFBC and, upon  request,  to each of the other  Purchasers,  as
soon as  practicable  after the end of each fiscal  year, a copy of the Issuer's
annual  report to  stockholders  for such year;  and the Issuer will  furnish to
CSFBC  and,  upon  request,  to  each  of the  other  Purchasers  (i) as soon as
available,  a copy of each  report and any  definitive  proxy  statement  of the
Issuer  filed  with  the  Commission   under  the  Exchange  Act  or  mailed  to
stockholders  and  (ii)  from  time  to  time,  such  other  publicly  available
information concerning the Issuer as CSFBC may reasonably request.




<PAGE>


                                       10

         (e) During the period of two years after the Closing  Date,  the Issuer
will,  upon  request,  furnish  to the  Purchasers  and any  holder  of  Offered
Securities  a copy of the  restrictions  on transfer  applicable  to the Offered
Securities.

         (f) During the period of two years after the Closing  Date,  the Issuer
will not,  and will not permit  any of its  affiliates  (as  defined in Rule 144
under the  Securities  Act) to, resell any of the Offered  Securities  that have
been reacquired by any of them.

         (g) During the period of two years after the Closing  Date,  the Issuer
will not be or become, an open-end investment company,  unit investment trust or
face-amount  certificate  company that is or is required to be registered  under
Section 8 of the  Investment  Company Act, and the Issuer is not, or will not be
or become, a closed-end  investment  company required to be registered,  but not
registered, under the Investment Company Act.

         (h) The Issuer will pay all expenses  incidental to the  performance of
the Issuer's  obligations under this Agreement and the Indenture,  including (i)
the fees and  expenses of the Trustee and its  professional  advisers;  (ii) all
expenses in connection with the execution, issue, authentication,  packaging and
initial delivery of the Offered Securities, the preparation and printing of this
Agreement,  the Offered  Securities,  the Indenture,  the Offering  Document and
amendments  and  supplements  thereto,  and any other  document  relating to the
issuance, offer, sale and delivery of the Offered Securities;  (iii) the cost of
qualifying the Offered Securities for trading in The Private  Offerings,  Resale
and  Trading  through  Automated  Linkages  (PORTAL)  market  and  any  expenses
incidental thereto;  (iv) the cost of any advertising  approved by the Issuer in
connection with the issue of the Offered Securities; (v) any expenses (including
fees and disbursements of counsel) incurred in connection with  qualification of
the  Offered  Securities  for sale under the laws of such  jurisdictions  in the
United  States and Canada as CSFBC  designates  and the  printing  of  memoranda
relating  thereto;  (vi) any fees charged by investment  rating agencies for the
rating  of  the  Offered   Securities;   and  (vii)  all  expenses  incurred  in
distributing  the Offering  Document  (including any amendments and  supplements
thereto) to the Purchasers. The Issuer will also pay or reimburse the Purchasers
for 50% of the reasonable fees and expenses of the Purchasers' counsel, Cravath,
Swaine & Moore,  incurred in connection  with the  transactions  contemplated in
this Agreement.

         (i) In connection  with the  offering,  until CSFBC shall have notified
the  Issuer  and the other  Purchasers  of the  completion  of the resale of the
Offered  Securities,  neither the Issuer nor any of its  affiliates  has or will
(unless  required  by  the  terms  of  the  indenture   governing  such  Offered
Securities), either alone or with one or more other persons, bid for or purchase
for any account in which it or any of its affiliates  has a beneficial  interest
any Offered  Securities  or attempt to induce any person to purchase any Offered
Securities;  and  neither  they nor any of their  affiliates  will  make bids or
purchases for the purpose of creating actual, or apparent, active trading in, or
of raising the price of, the Offered Securities.

         (j) The Issuer  will not at any time  offer,  sell,  contract  to sell,
pledge or otherwise  dispose of,  directly or indirectly,  any securities  under
circumstances  where such offer,  sale,  pledge,  contract or disposition  would
cause the exemption  afforded by Section 4(2) of the  Securities Act or the safe
harbor of  Regulation S thereunder  to cease to be  applicable  to the offer and
sale of the Offered Securities.



<PAGE>


                                       11

         (k) The Issuer will cause each Offered  Security to bear the legend set
forth in the form of Note  attached as Exhibit 1 to the Rule 144A/  Regulation S
Appendix  to the  relevant  Indenture  until  such  legend  shall no  longer  be
necessary or advisable  because the Offered  Securities are no longer subject to
the restrictions on transfer described therein.

         6. Conditions of the Obligations of the Purchasers.  The obligations of
the several  Purchasers to purchase and pay for the Offered  Securities  will be
subject to  performance  by the Issuer of its  obligations  hereunder and to the
following additional conditions precedent:

         (a) The  Purchasers  shall have  received  opinions,  dated the Closing
Date, of (i) Graubard Mollen & Miller,  counsel for the Issuer, and (ii) Willkie
Farr  &  Gallagher,  counsel  for  the  Issuer  on FCC  matters,  in  each  case
substantially to the effect set forth in Annex I and Annex II, respectively.

         (b) The  Purchasers  shall have received from Cravath,  Swaine & Moore,
counsel for the  Purchasers  (or,  if such  counsel  shall fail to deliver  such
opinion, other counsel reasonably acceptable to the Purchasers), such opinion or
opinions,  dated the Closing  Date,  with  respect to the  incorporation  of the
Issuer, the validity of the Offered Securities,  the exemption from registration
for the offer and sale of the  Offered  Securities  by the Issuer to the several
Purchasers and the resales by the several Purchasers as contemplated  hereby and
other related matters as CSFBC may reasonably require, and the Issuer shall have
furnished  to such counsel such  documents  as they  reasonably  request for the
purpose of enabling them to pass upon such matters.

         (c) The Purchasers shall have received a certificate, dated the Closing
Date, of the Chief Executive  Officer or any Vice President and the Treasurer or
a  principal  financial  or  accounting  officer  of the  Issuer  in which  such
officers, to the best of their knowledge after reasonable  investigation,  shall
state  that the  Issuer has  complied  with all  agreements  and  satisfied  all
conditions  on its part to be performed  or satisfied  here under at or prior to
the Closing Date.

         The Issuer will furnish the Purchasers  with such  conformed  copies of
such opinions, certificates,  letters and documents as the Purchasers reasonably
request.  CSFBC may in its sole  discretion  waive on  behalf of the  Purchasers
compliance with any conditions to the  obligations of the Purchasers  hereunder,
whether in respect of the Closing Date or otherwise.

         7. Indemnification and Contribution.  (a) The Issuer will indemnify and
hold harmless each Purchaser against any losses, claims, damages or liabilities,
joint or  several,  to which  such  Purchaser  may  become  subject,  under  the
Securities Act or the Exchange Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon any  breach of any of the  representations  and  warranties  of the  Issuer
contained  herein or any untrue  statement  or alleged  untrue  statement of any
material fact contained in the Offering Document, or any amendment or supplement
thereto,  or arise out of or are based upon the omission or alleged  omission to
state therein a material fact necessary in order to make the statements therein,
in the light of the  circumstances  under which they were made, not  misleading,
and will reimburse  each  Purchaser for any legal or other expenses  reason ably
incurred by such  Purchaser in connection  with  investigating  or defending any
such



<PAGE>


                                       12

loss,  claim,  damage,  liability  or  action  as such  expenses  are  incurred;
provided,  how ever,  that the Issuer will not be liable in any such case to the
extent that any such loss, claim,  damage or liability arises out of or is based
upon an untrue  statement or alleged untrue  statement in or omission or alleged
omission  from any of such  documents in reliance  upon and in  conformity  with
written  information  furnished  to the Issuer by any  Purchaser  through  CSFBC
specifically for use therein.

         (b) Each Purchaser  will  severally and not jointly  indemnify and hold
harmless the Issuer against any losses,  claims, damages or liabilities to which
the Issuer may become  subject,  under the Securities Act or the Exchange Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect  thereof) arise out of or are based upon any untrue statement or alleged
untrue statement of any material fact contained in the Offering Document, or any
amendment or supplement  thereto, or arise out of or are based upon the omission
or the alleged  omission to state therein a material fact  necessary in order to
make the statements  therein, in the light of the circumstances under which they
were made, not misleading,  in each case to the extent,  but only to the extent,
that such untrue  statement or alleged  untrue  statement or omission or alleged
omission was made in reliance  upon and in conformity  with written  information
furnished to the Issuer by such  Purchaser  through CSFBC  specifically  for use
therein,  and will reimburse any legal or other expenses  reasonably incurred by
the Issuer in connection with  investigating or defending any such loss,  claim,
damage, liability or action as such expenses are incurred.

         (c) Promptly after receipt by an  indemnified  party under this Section
of notice of the commencement of any action,  such indemnified  party will, if a
claim in respect  thereof is to be made  against  the  indemnifying  party under
subsection (a) or (b) above,  notify the indemnifying  party of the commencement
thereof;  but the omission so to notify the indemnifying  party will not relieve
it from any liability which it may have to any indemnified  party otherwise than
under  subsection (a) or (b) above.  In case any such action is brought  against
any indemnified party and it notifies the indemnifying party of the commencement
thereof, the indemnifying party will be entitled to partici pate therein and, to
the extent that it may wish, jointly with any other indemnifying party similarly
notified,  to assume the defense thereof,  with counsel reasonably satis factory
to such  indemnified  party (who shall not, except with the consent of the indem
nified party (which consent shall not be unreasonably  withheld),  be counsel to
the indemnifying  party),  and after notice from the indemnifying  party to such
indemnified  party  of its  election  so to  assume  the  defense  thereof,  the
indemnifying  party  will not be liable to such  indemnified  party  under  this
Section  for  any  legal  or  other  expenses   subsequently  incurred  by  such
indemnified  party in connection  with the defense thereof other than reasonable
costs of investigation.  No indemnifying party shall,  without the prior written
consent  of the  indemnified  party  (which  consent  shall not be  unreasonably
withheld),  effect any settlement of any pending or threatened action in respect
of which any indemnified party is or could have been a party and indemnity could
have been sought  hereunder by such  indemnified  party  unless such  settlement
includes an uncondi tional release of such indemnified  party from all liability
on any claims that are the subject matter of such action.

         (d) If the indemnification  provided for in this Section is unavailable
or insuf ficient to hold harmless an indemnified  party under  subsection (a) or
(b) above, then each  indemnifying  party shall contribute to the amount paid or
payable by such indem nified party as a result of the losses, claims, damages or
liabilities  referred to in sub section (a) or (b) above (i) in such  proportion
as is appropriate to reflect the relative benefits received by the Issuer on the
one hand and the  Purchasers  on the  other  from the  offering  of the  Offered
Securities  or (ii) if the  allocation  provided  by  clause  (i)  above  is not
permitted by applicable law, in such proportion as is appropriate to reflect not
only the relative benefits referred to in clause (i) above but also the relative
fault  of the  Issuer  on the  one  hand  and the  Purchasers  on the  other  in
connection  with the  statements  or  omissions  which  resulted in such losses,
claims,  damages  or  liabilities  as  well  as  any  other  relevant  equitable
considerations. The relative benefits received by the Issuer on the one hand and
the Purchasers on the other shall be deemed to be in the same  proportion as the
total net  proceeds  from the  offering  (before  deducting  expenses  but after
deducting the Purchasers' discounts and commissions) received by the Issuer bear
to the total  discounts  and  commissions  received by the  Purchasers  from the
Issuer under this Agreement. The relative fault shall be determined by reference
to,  among other  things,  whether the untrue or alleged  untrue  statement of a
material  fact or the  omission  or alleged  omission  to state a material  fact
relates to information supplied by the Issuer or the Purchasers and the parties'
relative intent, knowledge,  access to information and opportunity to correct or
prevent such untrue  statement or  omission.  The amount paid by an  indemnified
party as a result of the losses,  claims,  damages or liabilities referred to in
the first  sentence of this  subsection (d) shall be deemed to include any legal
or other expenses  reasonably  incurred by such indemnified  party in connection
with investigating or defending any action or claim which is the subject of this
subsection  (d).  Notwithstanding  the  provisions  of this  subsection  (d), no
Purchaser  shall be required to contribute any amount in excess of the amount by
which  the total  price at which the  Offered  Securities  purchased  by it were
resold exceeds the amount of any damages which such Purchaser has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged  omission.  The  Purchasers'  obligations  in this  subsection (d) to
contribute are several in proportion to their  respective  purchase  obligations
and not joint.

         (e) The  obligations  of the  Issuer  under  this  Section  shall be in
addition to any liability  which the Issuer may otherwise have and shall extend,
upon the same terms and  conditions,  to each  person,  if any, who controls any
Purchaser  within the meaning of the Securities Act or the Exchange Act; and the
obligations  of the  Purchasers  under this Section  shall be in addition to any
liability  which the respective  Purchasers may otherwise have and shall extend,
upon the same terms and  conditions,  to each  person,  if any, who controls the
Issuer within the meaning of the Securities Act or the Exchange Act.

         8.  Certain  Other  Post-Closing  Obligations  of the  Issuer  and  the
Guarantor.  (a) Upon  delivery of the  Offering  Document to the  Purchasers  as
provided  in Section  5(a),  the Issuer  shall  cause the  following  additional
documents to be delivered to the Purchasers:

                  (i) a letter,  dated  the date of the  Offering  Document,  of
         Grant  Thornton  LLP,  in  form  substantially  similar  to the  letter
         delivered  to the  Purchasers  by such  firm  in  connection  with  the
         transactions  contemplated by the August Offering  Document,  with such
         changes as are appropriate.

                  (ii) a letter from Graubard  Mollen & Miller,  counsel for the
         Issuer,  stating  that such  counsel have no reason to believe that the
         Offering Document, as of such date, contained any untrue statement of a
         material fact or omitted to


<PAGE>


                                       13

         state any material fact  required to be stated  therein or necessary to
         make the statements  therein, in light of the circumstances under which
         they were made, not misleading,  in form  substantially  similar to the
         letter  delivered to the Purchasers by such counsel in connection  with
         the  transactions  contemplated by the August Offering  Document,  with
         such changes as are appropriate;  it being understood that such counsel
         need  express  no  opinion  as to the  financial  statements  or  other
         financial data contained in the Offering Document.

         (b) In  connection  with the delivery of the  Offering  Document to the
Purchasers,  the Issuer and the Purchasers  shall execute a letter setting forth
all  information  furnished  to the  Issuer  by  the  Purchasers  through  CSFBC
specifically for use therein, which information shall be substantially identical
to such information provided in connection with the August Offering Document.

         9. Survival of Certain Representations and Obligations.  The respective
indem nities,  agreements,  representations,  warranties and other statements of
the Issuer or their officers and of the several  Purchasers set forth in or made
pursuant to this Agreement  will remain in full force and effect,  regardless of
any investigation,  or statement as to the results thereof, made by or on behalf
of  any  Purchaser,  the  Issuer  or any of  their  respective  representatives,
officers or directors or any controlling  person,  and will survive  delivery of
and payment for the Offered Securities.

         10. Notices.  All  communications  hereunder will be in writing and, if
sent to the Purchasers will be mailed,  delivered or electronically  transmitted
and confirmed to the  Purchasers,  c/o Credit  Suisse First Boston  Corporation,
Eleven  Madison  Avenue,  New York,  NY  10010,  Attention:  Investment  Banking
Department--Transactions  Advisory  Group,  or,  if sent to the  Issuer  will be
mailed,  delivered  or  electronically  transmitted  and  confirmed  to 230 Park
Avenue,  New York, NY 10169,  facsimile no. (212) 922-1637,  Attention:  Timothy
Graham; provided,  however, that any notice to a Purchaser pursuant to Section 7
will be mailed,  delivered or  electronically  transmitted and confirmed to such
Purchaser.

         11.  Successors.  This  Agreement  will inure to the  benefit of and be
binding  upon  the  parties  hereto  and  their  respective  successors  and the
controlling  persons referred to in Section 7, and no other person will have any
right or obligation here under,  except that holders of Offered Securities shall
be entitled to enforce the agree ments for their benefit contained in the second
and third sentences of Section 5(b) hereof against the Issuer as if such holders
were parties thereto.

         12.  Counterparts.  This  Agreement  may be  executed  in any number of
counter  parts,  each of which shall be deemed to be an  original,  but all such
counterparts shall together constitute one and the same Agreement.

         13.  Applicable Law. This Agreement shall be governed by, and construed
in  accordance  with,  the  law of the  State  of New  York  without  regard  to
principles of conflicts of laws.

         The Issuer  hereby  submits to the  non-exclusive  jurisdiction  of the
Federal and state  courts in the Borough of Manhattan in The City of New York in
any suit or  proceeding  arising  out of or relating  to this  Agreement  or the
transactions contemplated hereby.



<PAGE>


                                       14

         If the foregoing is in accordance with the Purchasers' understanding of
our  agreement,  kindly  sign and return to us one of the  counterparts  hereof,
whereupon  it will become a binding  agreement  among the Issuer and the several
Purchasers in accordance with its terms.

                                             Very truly yours,


                                             WinStar Communications, Inc.


                                             By:
                                               ------------------------------
                                               Name:
                                               Title:

The foregoing Purchase Agreement is hereby confirmed and accepted as of the date
first above written.

Credit Suisse First Boston Corporation
BT Alex Brown Incorporated

By Credit Suisse First Boston Corporation

         By:
            -----------------------------
          Name:
          Title:




<PAGE>



                                   SCHEDULE A


                                           Principal Amount
                                             of Offered
Purchaser                                    Securities

Credit Suisse First Boston                   $60,000,000
  Corporation

BT Alex Brown                                 40,000,000
  Incorporated
                                           --------------
                                            $100,000,000
                                           ==============



                                       A-1

<PAGE>


                          WINSTAR COMMUNICATIONS, INC.,
                                    as Issuer

                                       and

                    UNITED STATES TRUST COMPANY OF NEW YORK,
                                   as Trustee

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

              Senior Subordinated Deferred Interest Notes Indenture

                           Dated as of October 1, 1997
                             ----------------------


        15% Senior Subordinated Deferred Interest Notes Due March 1, 2007



<PAGE>

                                           CROSS-REFERENCE TABLE
<TABLE>
<CAPTION>


TIA Sections                                                                           Indenture Sections
<S>                                                                                           <C>   
ss.310(a)(1)............................................................................     7.10
      (a)(2)............................................................................     7.10
      (b)...............................................................................     7.08
ss.313(c)...............................................................................     7.06; 11.02
ss.314(a)...............................................................................     4.18; 11.02
      (a)(4)............................................................................     4.17; 11.02
      (c)(1)............................................................................     11.03
      (c)(2)............................................................................     11.03
      (e)...............................................................................     11.04
ss.315(b)...............................................................................     7.05; 11.02
ss.316(a)(1)(A).........................................................................     6.05
      (a)(1)(B).........................................................................     6.04
      (b)...............................................................................     6.07
ss.317(a)(1)............................................................................     6.08
      (a)(2)............................................................................     6.09
ss.318(a)...............................................................................     11.01
      (c)...............................................................................     11.01

</TABLE>
- ----------
Note:The Cross-Reference  Table shall not for any purpose be deemed to be a part
     of the Indenture.

<PAGE>
<TABLE>
<CAPTION>
                                             TABLE OF CONTENTS
                                                                                               Page


<S>                                                                                            <C>  
RECITALS OF THE COMPANY.........................................................................1



                                                ARTICLE ONE

                                DEFINITIONS AND INCORPORATION BY REFERENCE
SECTION 1.01. Definitions.......................................................................2
SECTION 1.02. Incorporation by Reference of Trust Indenture Act.................................23
SECTION 1.03. Rules of Construction.............................................................23
SECTION 1.04. Ranking of the Securities.........................................................24



                                                ARTICLE TWO

                                              THE SECURITIES
SECTION 2.01. Form and Dating...................................................................24
SECTION 2.02  Execution and Authentication......................................................24
SECTION 2.03. Registrar and Paying Agent........................................................25
SECTION 2.04. Paying Agent to Hold Money in Trust...............................................25
SECTION 2.05. Securityholder Lists..............................................................26
SECTION 2.06. Transfer and Exchange.............................................................26
SECTION 2.07. Replacement Securities............................................................27
SECTION 2.08. Outstanding Securities............................................................27
SECTION 2.09. Temporary Securities..............................................................28
SECTION 2.10. Cancellation......................................................................28
SECTION 2.11. Defaulted Interest................................................................28
SECTION 2.12. CUSIP Numbers.....................................................................28



                                               ARTICLE THREE

                                                REDEMPTION
SECTION 3.01. Right of Redemption...............................................................29
SECTION 3.02. Notices to Trustee................................................................29
SECTION 3.03. Selection of Securities to Be Redeemed............................................30
SECTION 3.04. Notice of Redemption..............................................................30

</TABLE>


<PAGE>

                                       ii
<TABLE>
<CAPTION>
<S>                                                                                             <C> 
SECTION 3.05. Effect of Notice of Redemption....................................................31
SECTION 3.06. Deposit of Redemption Price.......................................................31
SECTION 3.07. Payment of Securities Called for Redemption.......................................31
SECTION 3.08. Securities Redeemed in Part.......................................................32



                                               ARTICLE FOUR

                                                 COVENANTS
SECTION 4.01. Payment of Securities.............................................................32
SECTION 4.02. Maintenance of Office or Agency...................................................33
SECTION 4.03. Limitation on Indebtedness........................................................33
SECTION 4.04. Limitation on Senior Subordinated Indebtedness....................................36
SECTION 4.05. Limitation on Restricted Payments.................................................36
SECTION 4.06. Limitation on Dividend and Other Payment Restrictions
                 Affecting Restricted Subsidiaries..............................................39
SECTION 4.07. Limitation on the Issuance and Sale of Capital Stock of
                 Restricted Subsidiaries........................................................41
SECTION 4.08. Limitation on Issuances of Guarantees by Restricted
                 Subsidiaries...................................................................41
SECTION 4.09. Limitation on Transactions with Shareholders and Affiliates.......................42
SECTION 4.10. Limitation on Asset Sales.........................................................43
SECTION 4.11. Repurchase of Securities upon a Change of Control.................................44
SECTION 4.12. Existence.........................................................................45
SECTION 4.13. Payment of Taxes and Other Claims.................................................45
SECTION 4.14. Maintenance of Properties and Insurance...........................................46
SECTION 4.15. Notice of Defaults................................................................46
SECTION 4.16. Compliance Certificates...........................................................46
SECTION 4.17. SEC Reports and Reports to Holders................................................47
SECTION 4.18. Waiver of Stay, Extension or Usury Laws...........................................47



                                               ARTICLE FIVE

                                           SUCCESSOR CORPORATION
SECTION 5.01. When Company May Merge, Etc.......................................................48
SECTION 5.02. Successor Substituted.............................................................49


</TABLE>

<PAGE>

                                       iii



                                                ARTICLE SIX
<TABLE>
<CAPTION>
<S>                                                                                            <C>   
                                           DEFAULT AND REMEDIES
SECTION 6.01. Events of Default.................................................................49
SECTION 6.02. Acceleration......................................................................51
SECTION 6.03. Other Remedies....................................................................52
SECTION 6.04. Waiver of Past Defaults...........................................................52
SECTION 6.05. Control by Majority...............................................................52
SECTION 6.06. Limitation on Suits...............................................................53
SECTION 6.07. Rights of Holders to Receive Payment..............................................53
SECTION 6.08. Collection Suit by Trustee........................................................54
SECTION 6.09. Trustee May File Proofs of Claim..................................................54
SECTION 6.10. Priorities........................................................................54
SECTION 6.11. Undertaking for Costs.............................................................55
SECTION 6.12. Restoration of Rights and Remedies................................................55
SECTION 6.13. Rights and Remedies Cumulative....................................................55
SECTION 6.14. Delay or Omission Not Waiver......................................................56



                                               ARTICLE SEVEN

                                                  TRUSTEE
SECTION 7.01. General...........................................................................56
SECTION 7.02. Certain Rights of Trustee.........................................................56
SECTION 7.03. Individual Rights of Trustee......................................................57
SECTION 7.04. Trustee's Disclaimer..............................................................58
SECTION 7.05. Notice of Default.................................................................58
SECTION 7.06. Reports by Trustee to Holders.....................................................58
SECTION 7.07. Compensation and Indemnity........................................................58
SECTION 7.08. Replacement of Trustee............................................................59
SECTION 7.09. Successor Trustee by Merger, Etc..................................................60
SECTION 7.10. Eligibility.......................................................................60
SECTION 7.11. Money Held in Trust...............................................................60
SECTION 7.12. Withholding Taxes.................................................................60

</TABLE>


<PAGE>

                                       iv


                                               ARTICLE EIGHT
<TABLE>
<CAPTION>
<S>                                                                                            <C>  
                                          DISCHARGE OF INDENTURE
SECTION 8.01. Termination of Company's Obligations..............................................61
SECTION 8.02. Defeasance and Discharge of Indenture.............................................62
SECTION 8.03. Defeasance of Certain Obligations.................................................64
SECTION 8.04. Application of Trust Money........................................................66
SECTION 8.05. Repayment to Company..............................................................66
SECTION 8.06. Reinstatement.....................................................................67
SECTION 8.07. Insiders..........................................................................67



                                               ARTICLE NINE

                                    AMENDMENTS, SUPPLEMENTS AND WAIVERS
SECTION 9.01. Without Consent of Holders........................................................67
SECTION 9.02. With Consent of Holders...........................................................68
SECTION 9.03. Revocation and Effect of Consent..................................................69
SECTION 9.04. Notation on or Exchange of Securities.............................................70
SECTION 9.05. Trustee to Sign Amendments, Etc...................................................70
SECTION 9.06. Conformity with Trust Indenture Act...............................................70



                                                ARTICLE TEN

                                               SUBORDINATION
SECTION 10.01. Securities Subordinate to Senior Indebtedness....................................71
SECTION 10.02. No Payment on Securities in Certain Circumstances................................71
SECTION 10.03. Payment Over of Proceeds Upon Dissolution, Etc...................................72
SECTION 10.04. Subrogation of Holders to Rights of Holders of
                  Senior Indebtedness...........................................................74
SECTION 10.05. Obligations of Company Unconditional.............................................75
SECTION 10.06. Payments May Be Made Prior to Dissolution........................................75
SECTION 10.07. No Waiver of Subordination Provisions............................................76


</TABLE>

<PAGE>

                                        v
<TABLE>
<CAPTION>


<S>                                                                                            <C>  
SECTION 10.08. Authorization to Trustee to Take Action to Effectuate
                  Subordination.................................................................76
SECTION 10.09. Senior Indebtedness May Be Renewed or Extended,                                                         
                  Etc...........................................................................76
SECTION 10.10. Trustee to Have No Fiduciary Duty to Holders of
                  Senior Indebtedness...........................................................77
SECTION 10.11. Rights of Trustee as Holder of Senior Indebtedness...............................77
SECTION 10.12. Notice to Trustee................................................................77
SECTION 10.13. Reliance on Judicial Order or Certificate of
                  .Liquidating Agent............................................................78
SECTION 10.14. Not to Prevent Events of Default.................................................78
SECTION 10.15. Trustee's Compensation Not Prejudiced............................................78



                                              ARTICLE ELEVEN

                                               MISCELLANEOUS
SECTION 11.01. Trust Indenture Act of 1939......................................................79
SECTION 11.02. Notices..........................................................................79
SECTION 11.03. Certificate and Opinion as to Conditions Precedent...............................80
SECTION 11.04. Statements Required in Certificate or Opinion....................................80
SECTION 11.05. Rules by Trustee, Paying Agent or Registrar......................................81
SECTION 11.06. Payment Date Other Than a Business Day...........................................81
SECTION 11.07. Governing Law....................................................................81
SECTION 11.08. No Adverse Interpretation of Other Agreements....................................81
SECTION 11.09. No Recourse Against Others.......................................................81
SECTION 11.10. Successors.......................................................................82
SECTION 11.11. Duplicate Originals..............................................................82
SECTION 11.12. Separability.....................................................................82
SECTION 11.13. Table of Contents, Headings, Etc.................................................82

EXHIBIT A      Form of Security.................................................................EA-1
Rule 144A Regulation S Appendix.................................................................A-1

</TABLE>



<PAGE>

                  INDENTURE,  dated  as of  October  1,  1997,  between  WINSTAR
COMMUNICATIONS,  INC., a Delaware  corporation,  as issuer (the  "Company")  and
UNITED STATES TRUST COMPANY OF NEW YORK, as trustee (the "Trustee").


                             RECITALS OF THE COMPANY

                  Each  party  agrees as  follows  for the  benefit of the other
party and for the equal and ratable  benefit of the Holders of the Company's 15%
Senior Subordinated  Deferred Interest Notes Due 2007 (the "Initial Securities")
and,  if  and  when  issued  pursuant  to  a  registered  exchange  for  Initial
Securities,  the Company's 15% Senior  Subordinated  Deferred Interest Notes Due
2007 (the "Exchange  Securities")  and, if and when issued pursuant to a private
exchange for Initial Securities,  the Company's 15% Senior Subordinated Deferred
Interest Notes Due 2007 (the "Private  Exchange  Securities",  together with the
Exchange Securities and the Initial Securities, the "Securities"):





<PAGE>


                                        2


                                   ARTICLE ONE

                   DEFINITIONS AND INCORPORATION BY REFERENCE

                  SECTION 1.01.  Definitions.

                  "Accumulated  Amount"  means,  as of any date (the  "Specified
Date"),  the  amount  provided  below for each  $1,000  principal  amount of the
Securities.

                  (i) If the Specified Date occurs on one of the following dates
         (each, a "SemiAnnual  Interest Accrual Date"),  the Accumulated  Amount
         will  equal the  amount set forth  below for such  SemiAnnual  Interest
         Accrual Date:

SemiAnnual Interest Accrual Date                              Accumulated Amount

March 1, 1998.....................................                  $1060.000
September 1, 1998.................................                   1139.500
March 1, 1999.....................................                   1224.963
September 1, 1999.................................                   1316.835
March 1, 2000.....................................                   1415.597
September 1, 2000.................................                   1521.767
March 1, 2001.....................................                   1635.900
September 1, 2001.................................                   1758.592
March 1, 2002.....................................                   1890.486



                (ii) if the Specified  Date occurs  before the first  SemiAnnual
         Interest Accrual Date, the Accumulated Amount will equal the sum of (A)
         $1,000 and (B) an amount  equal to the  product of (1) the  Accumulated
         Amount  for the first  SemiAnnual  Interest  Accrual  Date less  $1,000
         multiplied  by (2) a fraction,  the numerator of which is the number of
         days elapsed from the Issue Date to the Specified Date, using a 360-day
         year of  twelve  30-day  months,  and the  denominator  of which is the
         number  of days from the Issue  Date to the first  SemiAnnual  Interest
         Accrual Date, using a 360 day year of twelve 30-day months;

              (iii) if the Specified Date occurs between two SemiAnnual Interest
         Accrual  Dates,  the  Accumulated  Amount will equal the sum of (A) the
         Accumulated Amount for the SemiAnnual Interest Accrual Date immediately
         preceding such Specified Date and (B) an amount equal to the product of
         (1) the  Accumulated  Amount for the immediately  following  SemiAnnual
         Interest Accrual Date less



<PAGE>

                                        3

         the  Accumulated  Amount  for  the  immediately   preceding  SemiAnnual
         Interest  Accrual Date  multiplied by (2) a fraction,  the numerator of
         which is the  number of days  elapsed  from the  immediately  preceding
         SemiAnnual Interest Accrual Date to the Specified Date, using a 360-day
         year of twelve 30-day months, and the denominator of which is 180; or

                (iv) if the  Specified  Date  occurs  after the last  SemiAnnual
         Interest Accrual Date, the Accumulated Amount will equal $1890.486.

                  "Adjusted  Consolidated Net Income" means, for any period, the
aggregate  net income (or loss) of the Company and its  Restricted  Subsidiaries
for such period determined in conformity with GAAP; provided,  however, that the
following items shall be excluded in computing Adjusted  Consolidated Net Income
(without  duplication):  (i) the net income of any Person (other than net income
attributable  to a Restricted  Subsidiary)  in which any Person  (other than the
Company or any of its Restricted  Subsidiaries) has a joint interest and the net
income of any  Unrestricted  Subsidiary,  except to the  extent of the amount of
dividends  or other  distributions  actually  paid to the  Company or any of its
Restricted Subsidiaries by such other Person, including,  without limitation, an
Unrestricted  Subsidiary  during such  period;  (ii) solely for the  purposes of
calculating  the amount of  Restricted  Payments  that may be made  pursuant  to
clause (C) of the first  paragraph of Section 4.05 (and in such case,  except to
the extent includable pursuant to clause (i) above), the net income (or loss) of
any Person  accrued  prior to the date it becomes a Restricted  Subsidiary or is
merged  into  or  consolidated  with  the  Company  or  any  of  its  Restricted
Subsidiaries  or all or  substantially  all of the  property  and assets of such
Person are acquired by the Company or any of its Restricted Subsidiaries;  (iii)
the net income of any Restricted  Subsidiary to the extent that the  declaration
or payment of dividends or similar  distributions by such Restricted  Subsidiary
of such net income is not at the time permitted by the operation of the terms of
its charter or any agreement, instrument, judgment, decree, order, statute, rule
or governmental  regulation applicable to such Restricted  Subsidiary;  (iv) any
gains or losses (on an after-tax basis)  attributable to Asset Sales; (v) except
for purposes of calculating  the amount of Restricted  Payments that may be made
pursuant to clause (C) of the first  paragraph of Section 4.05,  any amount paid
as, or accrued for,  cash  dividends  on  Preferred  Stock of the Company or any
Restricted  Subsidiary  owned by Persons  other than the  Company and any of its
Restricted  Subsidiaries;  and (vi) all  extraordinary  gains and  extraordinary
losses.

                  "Adjusted  Consolidated  Net Tangible  Assets" means the total
amount of assets of the Company and its Restricted Subsidiaries (less applicable
depreciation,  amortization and other valuation reserves),  except to the extent
resulting from write-ups of capital  assets  (excluding  write-ups in connection
with accounting for acquisitions in



<PAGE>

                                        4

conformity with GAAP), after deducting  therefrom (i) all current liabilities of
the Company and its Restricted  Subsidiaries  (excluding intercompany items) and
(ii) all goodwill, trade names, trademarks,  patents,  unamortized debt discount
and expense and other like intangibles  (other than licenses issued by the FCC),
all as set forth on the  quarterly or annual  consolidated  balance sheet of the
Company and its Restricted  Subsidiaries,  prepared in conformity  with GAAP and
most recently  filed with the SEC pursuant to Section 4.17;  provided,  however,
that the  value of any  licenses  issued  by the FCC  shall,  in the event of an
auction for similar licenses, be equal to the fair market value ascribed thereto
in good faith by the Board of Directors and evidenced by a Board Resolution.  As
used in this  Indenture,  references to financial  statements of the Company and
its  Restricted   Subsidiaries   shall  be  adjusted  to  exclude   Unrestricted
Subsidiaries if the context requires.

                  "Affiliate"  means, as applied to any Person, any other Person
directly or indirectly  controlling,  controlled by, or under direct or indirect
common control with,  such Person.  For purposes of this  definition,  "control"
(including,  with correlative meanings, the terms "controlling," "controlled by"
and  "under  common  control  with"),  as  applied  to  any  Person,  means  the
possession,  directly  or  indirectly,  of the  power to  direct  or  cause  the
direction of the  management  and policies of such Person,  whether  through the
ownership of voting securities, by contract or otherwise.

                  "Agent" means any Registrar, Paying Agent, authenticating 
agent or co-Registrar.

                  "Asset  Acquisition" means (i) an investment by the Company or
any of its Restricted  Subsidiaries  in any other Person  pursuant to which such
Person shall become a  Restricted  Subsidiary  of the Company or shall be merged
into or consolidated  with the Company or any of its Restricted  Subsidiaries or
(ii) an acquisition by the Company or any of its Restricted  Subsidiaries of the
property  and  assets  of  any  Person  other  than  the  Company  or any of its
Restricted Subsidiaries that constitute  substantially all of a division or line
of business of such Person.

                  "Asset  Sale" means any sale,  transfer  or other  disposition
(including by way of merger,  consolidation or  sale-leaseback  transactions) in
one transaction or a series of related transactions by the Company or any of its
Restricted  Subsidiaries  to any  Person  other  than the  Company or any of its
Restricted Subsidiaries of (i) all or any of the Capital Stock of any Restricted
Subsidiary,  (ii) all or  substantially  all of the  property  and  assets of an
operating unit or business of the Company or any of its Restricted  Subsidiaries
or (iii) any other  property or assets of the  Company or any of its  Restricted
Subsidiaries  outside  the  ordinary  course of  business of the Company or such
Restricted  Subsidiary and, in each case, that is not governed by the provisions
of



<PAGE>

                                        5

Article Five; provided, however, that the following shall not be included within
the  meaning of "Asset  Sale":  (A) sales or other  dispositions  of  inventory,
receivables  and  other  current  assets;  (B)  sales or other  dispositions  of
equipment that has become worn out, obsolete or damaged or otherwise  unsuitable
for use in  connection  with  the  business  of the  Company  or its  Restricted
Subsidiaries  and (C) a  substantially  simultaneous  exchange  of, or a sale or
disposition (other than 85% or more for cash or cash equivalents) by the Company
or any  of  its  Restricted  Subsidiaries  of,  licenses  issued  by the  FCC or
applications  or  bids  therefor;  provided,  however,  that  the  consideration
received by the Company or any such  Restricted  Subsidiary in  connection  with
such exchange,  sale or  disposition  shall be equal to the fair market value of
licenses  so  exchanged,  sold or  disposed  of, as  determined  by the Board of
Directors;  and (D) except for purposes of the  definition of  "Indebtedness  to
EBITDA Ratio",  any sale or other  disposition of securities of an  Unrestricted
Subsidiary.

                  "August 1997 Equipment Note Guarantee"  means the Guarantee of
the August 1997  Equipment  Notes by the Company  pursuant to Article Ten of the
August 1997 Equipment Notes Indenture.

                  "August 1997  Equipment  Notes"  means the 12 1/2%  Guaranteed
Senior Secured Notes Due 2004 of WinStar Equipment II Corp.,  issued pursuant to
the indenture  dated as of August 1, 1997 among WinStar  Equipment II Corp.,  as
issuer, the Company, as guarantor,  and United States Trust Company of New York,
as trustee.

                  "August 1997 Equipment  Notes  Indenture"  means the indenture
relating to the August 1997 Equipment Notes, as originally executed or as it may
be  amended  or  supplemented  from  time  to  time  by one or  more  indentures
supplemental thereto entered into pursuant to the applicable provisions thereof.

                  "Average  Life"  means,  at any  date  of  determination  with
respect to any debt security,  the quotient  obtained by dividing (i) the sum of
the products of (a) the number of years from such date of  determination  to the
dates of each successive  scheduled  principal payment of such debt security and
(b) the amount of such  principal  payment by (ii) the sum of all such principal
payments.

                  "Board  of  Directors"  means the  Board of  Directors  of the
Company or any committee of such Board of Directors duly  authorized to act with
respect to this Indenture.

                  "Board Resolution" means a copy of a resolution,  certified by
the Secretary or Assistant Secretary of the Company to have been duly adopted by
the



<PAGE>

                                        6

Board  of  Directors  and to be in full  force  and  effect  on the date of such
certification, and delivered to the Trustee.

                  "Business  Day"  means any day  except a  Saturday,  Sunday or
other day on which  commercial  banks in The City of New York, or in the city of
the Corporate Trust Office of the Trustee, are authorized by law to close.

                  "Capital Stock" means, with respect to any Person, any and all
shares,  interests,  participations  or other equivalents  (however  designated,
whether voting or non-voting) in equity of such Person,  whether now outstanding
or issued after the date of this Indenture,  including,  without limitation, all
Common Stock and Preferred Stock.

                  "Capitalized Lease" means, as applied to any Person, any lease
of any  property  (whether  real,  personal  or mixed)  of which the  discounted
present value of the rental  obligations of such Person as lessee, in conformity
with GAAP,  is required to be  capitalized  on the balance sheet of such Person;
and "Capitalized  Lease  Obligations"  means the discounted present value of the
rental obligations under such lease.

                  "Change  of  Control"  means  such time as (i) a  "person"  or
"group" (within the meaning of Sections 13(d) and 14(d)(2) of the Exchange Act),
other than the Permitted Investor,  becomes the ultimate  "beneficial owner" (as
defined in Rule 13d-3 under the Exchange Act) of Voting Stock  representing more
than 50% of the total voting power of the Voting Stock of the Company on a fully
diluted basis or (ii) individuals who on the Deemed Closing Date constituted the
Board of Directors  (together with any new directors whose election by the Board
of Directors or whose nomination for election by the Company's  stockholders was
approved  by a vote of at  least  two-thirds  of the  members  of the  Board  of
Directors  then in office who either were  members of the Board of  Directors on
the Deemed  Closing  Date or whose  election  or  nomination  for  election  was
previously  so  approved)  cease for any reason to  constitute a majority of the
members of the Board of Directors then in office.

                  "Common Stock" means, with respect to any Person,  any and all
shares,  interests,  participations  or other equivalents  (however  designated,
whether  voting or  non-voting)  of such  Person's  common  stock,  whether  now
outstanding  or issued  after  the date of this  Indenture,  including,  without
limitation, all series and classes of such common stock.

                  "Company"  means  the  party  named  as such in the  paragraph
preceding the recitals hereof until a successor  replaces it pursuant to Article
Five of this Indenture and thereafter means the successor.



<PAGE>

                                        7

                  "Company Order" means a written request or order signed in the
name of the Company (i) by its  Chairman,  a Vice  Chairman,  its President or a
Vice President and (ii) by its Treasurer, an Assistant Treasurer,  its Secretary
or an Assistant Secretary and delivered to the Trustee; provided,  however, that
such  written  request  or order  may be signed  by any two of the  officers  or
directors  listed  in clause  (i)  above in lieu of being  signed by one of such
officers or directors  listed in such clause (i) and one of the officers  listed
in clause (ii) above.

                  "Consolidated  EBITDA" means,  for any period,  the sum of the
amounts  for  such  period  of  (i)  Adjusted   Consolidated  Net  Income,  (ii)
Consolidated  Interest  Expense,  to the  extent  such  amount was  deducted  in
calculating Adjusted  Consolidated Net Income, (iii) income taxes, to the extent
such amount was deducted in calculating Adjusted  Consolidated Net Income (other
than income taxes (either  positive or negative)  attributable to  extraordinary
and nonrecurring gains or losses or sales of assets), (iv) depreciation expense,
to the extent such amount was deducted in calculating Adjusted  Consolidated Net
Income,  (v)  amortization  expense,  to the extent such amount was  deducted in
calculating  Adjusted  Consolidated Net Income, and (vi) all other noncash items
reducing  Adjusted  Consolidated  Net Income (other than items that will require
cash  payments and for which an accrual or reserve is, or is required by GAAP to
be, made), less all noncash items increasing  Adjusted  Consolidated Net Income,
all as determined  on a  consolidated  basis for the Company and its  Restricted
Subsidiaries in conformity with GAAP; provided, however, that, if any Restricted
Subsidiary  is not a Wholly Owned  Restricted  Subsidiary,  Consolidated  EBITDA
shall be reduced (to the extent not otherwise  reduced in accordance  with GAAP)
by an amount  equal to (A) the amount of the  Adjusted  Consolidated  Net Income
attributable to such Restricted Subsidiary multiplied by (B) the quotient of (1)
the number of shares of outstanding  Common Stock of such Restricted  Subsidiary
not owned on the last day of such period by the Company or any of its Restricted
Subsidiaries  divided by (2) the total  number of shares of  outstanding  Common
Stock of such Restricted Subsidiary on the last day of such period.

                  "Consolidated  Indebtedness"  means  the  aggregate  amount of
Indebtedness  of the Company and its Restricted  Subsidiaries  on a consolidated
basis.

                  "Consolidated  Interest  Expense" means,  for any period,  the
aggregate amount of interest in respect of Indebtedness  (including amortization
of original issue discount on any  Indebtedness  and the interest portion of any
deferred  payment  obligation,  calculated  in  accordance  with  the  effective
interest  method of accounting;  all  commissions,  discounts and other fees and
charges  owed  with  respect  to  letters  of  credit  and  bankers'  acceptance
financing;  the  net  costs  associated  with  Interest  Rate  Agreements;   and
Indebtedness that is Guaranteed or secured by the Company or any of



<PAGE>

                                        8

its Restricted  Subsidiaries) and all but the principal  component of rentals in
respect of Capitalized Lease  Obligations paid,  accrued or scheduled to be paid
or to be accrued by the  Company  and its  Restricted  Subsidiaries  during such
period;  excluding,  however,  (i) any amount of such interest of any Restricted
Subsidiary  if the net income of such  Restricted  Subsidiary is excluded in the
calculation of Adjusted  Consolidated Net Income pursuant to clause (iii) of the
definition  thereof (but only in the same  proportion  as the net income of such
Restricted  Subsidiary is excluded from the calculation of Adjusted Consolidated
Net Income  pursuant to clause  (iii) of the  definition  thereof)  and (ii) any
premiums, fees and expenses (and any amortization thereof) payable in connection
with the  offering of the  Securities,  the March 1997 Notes and the August 1997
Equipment Notes, all as determined on a consolidated  basis (without taking into
account Unrestricted Subsidiaries) in conformity with GAAP.

                  "Consolidated  Net Worth" means, at any date of determination,
stockholders'  equity as set forth on the most recently  available  quarterly or
annual consolidated balance sheet of the Company and its Restricted Subsidiaries
(which  shall be as of a date not  more  than 90 days  prior to the date of such
computation,  and which shall not take into account Unrestricted  Subsidiaries),
less  any  amounts  attributable  to  Redeemable  Stock or any  equity  security
convertible  into or exchangeable for  Indebtedness,  the cost of treasury stock
and the principal amount of any promissory notes receivable from the sale of the
Capital Stock of the Company or any of its Restricted Subsidiaries, each item to
be determined in conformity with GAAP (excluding the effects of foreign currency
exchange  adjustments  under Financial  Accounting  Standards Board Statement of
Financial Accounting Standards No. 52).

                  "Convertible Notes" means the 14% Convertible Senior
Subordinated Discount Notes due 2005 of the Company.

                  "Convertible  Notes Indenture" means the Indenture dated as of
October 23, 1995,  between the Company and United  States  Trust  Company of New
York pursuant to which the Convertible Notes were issued.

                  "Corporate  Trust  Office"  means the office of the Trustee at
which the corporate trust business of the Trustee shall, at any particular time,
be  principally  administered,  which office is, at the date of this  Indenture,
located at 114 West 47th Street, New York, New York 10036-1532.

                  "Currency  Agreement"  means any  foreign  exchange  contract,
currency swap agreement or other similar  agreement or  arrangement  designed to
protect the Company or any of its Restricted  Subsidiaries  against fluctuations
in currency values to



<PAGE>

                                        9

or under which the Company or any of its Restricted Subsidiaries is a party or a
beneficiary  on the date of this  Indenture or becomes a party or a  beneficiary
thereafter.

                  "Deemed Closing Date" means March 18, 1997.

                  "Default"  means any event that is, or after notice or passage
of time or both would be, an Event of Default.

                  "Depositary"  shall mean The  Depository  Trust  Company,  its
nominees, and their respective successors.

                  "Designated Senior  Indebtedness"  means the Old Senior Notes,
the March 1997 Senior Notes, the March 1997 Equipment Note Guarantee, the August
1997  Equipment  Note  Guarantee  and  any  Indebtedness   constituting   Senior
Indebtedness of the Company that, at the date of determination, has an aggregate
principal amount of at least $25,000,000 and that is specifically  designated by
the Company in the instrument creating or evidencing such Senior Indebtedness as
Designated Senior Indebtedness for purposes of this Indenture.

                  "Event of Default" has the meaning provided in Section 6.01.

                  "Excess Proceeds" has the meaning provided in Section 4.10.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
amended.

                  "fair  market  value" means the price that would be paid in an
arm's-  length  transaction  between an  informed  and willing  seller  under no
compulsion to sell and an informed and willing buyer under no compulsion to buy,
as determined in good faith by the Board of Directors (whose determination shall
be conclusive) and evidenced by a Board Resolution.

                  "FCC"   means  the  United   States   Federal   Communications
Commission  and any  state or local  telecommunications  authority,  department,
commission or agency (and any successors thereto).

                  "GAAP" means generally accepted  accounting  principles in the
United  States  of  America  as in  effect  as of the  date of  this  Indenture,
including,   without   limitation,   those  set  forth  in  the   opinions   and
pronouncements of the Accounting  Principles Board of the American  Institute of
Certified Public  Accountants and statements and pronouncements of the Financial
Accounting Standards Board or in such



<PAGE>

                                       10

other  statements by such other entity as approved by a  significant  segment of
the  accounting  profession.  All  ratios  and  computations  contained  in this
Indenture  shall be computed in  conformity  with GAAP  applied on a  consistent
basis, except that calculations made for purposes of determining compliance with
the terms of the  covenants  set forth in Article Four and Article Five and with
other  provisions of this  Indenture  shall be made without giving effect to (i)
the amortization of any expenses incurred in connection with the offering of the
Securities,  the March 1997 Notes or the August  1997  Equipment  Notes and (ii)
except as  otherwise  provided,  the  amortization  of any  amounts  required or
permitted by Accounting Principles Board Opinion Nos. 16 and 17.

                  "Guarantee" means any obligation,  contingent or otherwise, of
any  Person  directly  or  indirectly  guaranteeing  any  Indebtedness  or other
obligation  of any other  Person and,  without  limiting the  generality  of the
foregoing, any obligation,  direct or indirect, contingent or otherwise, of such
Person (i) to purchase or pay (or  advance or supply  funds for the  purchase or
payment of) such  Indebtedness or other obligation of such other Person (whether
arising by virtue of partnership arrangements, or by agreements to keep-well, to
purchase assets, goods,  securities or services, to take-or-pay,  or to maintain
financial  statement  conditions or otherwise) or (ii) entered into for purposes
of  assuring  in any other  manner  the  obligee of such  Indebtedness  or other
obligation  of the payment  thereof or to protect such  obligee  against loss in
respect  thereof  (in  whole  or in  part);  provided,  however,  that  the term
"Guarantee"  shall not include  endorsements  for  collection  or deposit in the
ordinary  course  of  business.  The  term  "Guarantee"  used  as a  verb  has a
corresponding meaning.

                  "Guaranteed Indebtedness" has the meaning provided in
Section 4.08.

                  "Holder" or "Securityholder"  means the Person in whose name a
Security is registered on the books of the registrar.

                  "Incur"  means,  with respect to any  Indebtedness,  to incur,
create, issue, assume,  Guarantee or otherwise become liable for or with respect
to, or become responsible for, the payment of,  contingently or otherwise,  such
Indebtedness,  including,  with  respect  to  the  Company  and  its  Restricted
Subsidiaries,  an  "Incurrence" of Indebtedness by reason of a Person becoming a
Restricted  Subsidiary  of the  Company;  provided,  however,  that  neither the
accrual of interest  nor the  accretion  of  original  issue  discount  shall be
considered an Incurrence of Indebtedness.

                  "Indebtedness"  means,  with respect to any Person at any date
of determination (without duplication),  (i) all indebtedness of such Person for
borrowed  money,  (ii)  all  obligations  of such  Person  evidenced  by  bonds,
debentures, notes or



<PAGE>

                                       11

other similar  instruments  (whether  negotiable or  non-negotiable),  (iii) all
obligations  of such  Person in respect  of  letters of credit or other  similar
instruments (including reimbursement obligations with respect thereto), (iv) all
obligations  of such Person to pay the  deferred  and unpaid  purchase  price of
property or services, which purchase price is due more than six months after the
date of placing such property in service or taking delivery and title thereto or
the completion of such services,  except trade payables,  (v) all obligations of
such Person as lessee under Capitalized  Leases,  (vi) all Indebtedness of other
Persons  secured  by a Lien on any  asset of such  Person,  whether  or not such
Indebtedness is assumed by such Person;  provided,  however,  that the amount of
such Indebtedness shall be the lesser of (A) the fair market value of such asset
at such date of determination and (B) the amount of such Indebtedness, (vii) all
Indebtedness  of other  Persons  Guaranteed  by such  Person to the extent  such
Indebtedness is Guaranteed by such Person and (viii) to the extent not otherwise
included in this definition,  obligations under Currency Agreements and Interest
Rate  Agreements.  The amount of Indebtedness of any Person at any date shall be
the  outstanding  balance  at such  date  of all  unconditional  obligations  as
described above and, with respect to contingent obligations that are included in
any of  clauses  (i)  through  (viii)  above,  the  maximum  liability  upon the
occurrence of the contingency giving rise to the obligation;  provided, however,
that (A) the amount  outstanding  at any time of any  Indebtedness  issued  with
original issue discount is (1) for purposes of determining  the  Indebtedness to
EBITDA  Ratio,  the  face  amount  of  such   Indebtedness  less  the  remaining
unamortized  portion of the original issue discount of such Indebtedness at such
time as determined in conformity with GAAP and (2) for all other  purposes,  the
amount  determined  in clause (1) on the date such  Indebtedness  is  originally
Incurred  and (B)  Indebtedness  shall not include any  liability  for  federal,
state, local or other taxes.

                  "Indebtedness  to  EBITDA  Ratio"  means,  as at any  date  of
determination,  the ratio of (i) the  aggregate  amount of  Indebtedness  of the
Company and its Restricted  Subsidiaries on a consolidated basis  ("Consolidated
Indebtedness") as at the date of determination (the "Transaction  Date") to (ii)
the Consolidated EBITDA of the Company for the then most recent four full fiscal
quarters for which  reports have been filed  pursuant to Section 4.17 (such four
full  fiscal  quarter  period  being  referred  to herein  as the "Four  Quarter
Period");  provided,  however,  that (x) pro forma  effect shall be given to any
Indebtedness  Incurred from the beginning of the Four Quarter Period through the
Transaction Date (including any Indebtedness  Incurred on the Transaction Date),
to the extent  outstanding  on the  Transaction  Date,  (y) if during the period
commencing on the first day of such Four Quarter Period through the  Transaction
Date (the "Reference Period"), the Company or any of the Restricted Subsidiaries
shall have engaged in any Asset Sale,  Consolidated EBITDA for such period shall
be reduced by an amount  equal to the EBITDA (if  positive),  or increased by an
amount equal to the



<PAGE>

                                       12

EBITDA (if negative),  directly attributable to the assets which are the subject
of such Asset Sale and any related  retirement of  Indebtedness as if such Asset
Sale and related  retirement  of  Indebtedness  had occurred on the first day of
such Reference  Period or (z) if during such Reference Period the Company or any
of  the  Restricted   Subsidiaries   shall  have  made  any  Asset  Acquisition,
Consolidated  EBITDA of the Company  shall be calculated on a pro forma basis as
if such Asset  Acquisition  and any Incurrence of  Indebtedness  to finance such
Asset Acquisition had taken place on the first day of such Reference Period.

                  "Indenture" means this Indenture as originally  executed or as
it may be amended or  supplemented  from time to time by one or more  indentures
supplemental  to  this  Indenture   entered  into  pursuant  to  the  applicable
provisions of this Indenture.

                  "Interest Payment Date" means each semiannual interest payment
date on September 1 and March 1 of each year, commencing September 1, 2002.

                  "Interest Rate  Agreement"  means any interest rate protection
agreement,  interest  rate future  agreement,  interest  rate option  agreement,
interest rate swap agreement,  interest rate cap agreement, interest rate collar
agreement,   interest  rate  hedge  agreement  or  other  similar  agreement  or
arrangement   designed  to  protect  the  Company  or  any  of  its   Restricted
Subsidiaries  against  fluctuations in interest rates in respect of Indebtedness
to or under which the Company or any of its Restricted  Subsidiaries  is a party
or a  beneficiary  on the  date of  this  Indenture  or  becomes  a  party  or a
beneficiary  hereafter;  provided,  however,  that the notional principal amount
thereof does not exceed the principal  amount of the Indebtedness of the Company
and its Restricted Subsidiaries that bears interest at floating rates.

                  "Investment"  in any  Person  means  any  direct  or  indirect
advance,  loan or other extension of credit (including,  without limitation,  by
way of Guarantee or similar arrangement;  but excluding advances to customers in
the ordinary course of business that are, in conformity  with GAAP,  recorded as
accounts  receivable  on the  balance  sheet of the  Company  or its  Restricted
Subsidiaries)  or capital  contribution  to (by means of any transfer of cash or
other property to others or any payment for property or services for the account
or use of others),  or any  purchase or  acquisition  of Capital  Stock,  bonds,
notes,  debentures or other similar instruments issued by, such Person and shall
include  (i) the  designation  of a  Restricted  Subsidiary  as an  Unrestricted
Subsidiary  and (ii) the fair  market  value of the  Capital  Stock  held by the
Company and the  Restricted  Subsidiaries  of any Person that has ceased to be a
Restricted  Subsidiary by reason of any transaction permitted by clause (iii) of
Section 4.07. For purposes of the definition of  "Unrestricted  Subsidiary"  and
Section 4.05, (i) "Investment" shall include the fair market value of the assets
(net of



<PAGE>

                                       13

liabilities)  of any Restricted  Subsidiary of the Company at the time that such
Restricted  Subsidiary of the Company is designated an  Unrestricted  Subsidiary
and shall  exclude the fair market value of the assets (net of  liabilities)  of
any  Unrestricted  Subsidiary at the time that such  Unrestricted  Subsidiary is
designated  a  Restricted  Subsidiary  of the  Company  and  (ii)  any  property
transferred to or from an  Unrestricted  Subsidiary  shall be valued at its fair
market value at the time of such  transfer,  in each case as  determined  by the
Board of Directors in good faith.

                  "Issue  Date"  means  the date on  which  the  Securities  are
originally issued under this Indenture.

                  "Lien"  means  any  mortgage,   pledge,   security   interest,
encumbrance,  lien or charge of any kind  (including,  without  limitation,  any
conditional  sale or other  title  retention  agreement  or lease in the  nature
thereof,  any sale with  recourse  against  the seller or any  Affiliate  of the
seller, or any agreement to give any security interest).

                  "March 1997 Equipment Note  Guarantee"  means the Guarantee of
the March 1997  Equipment  Notes by the  Company  pursuant to Article Ten of the
March 1997 Equipment Notes Indenture.

                  "March 1997 Equipment Notes" means the 12 1/2% Guaranteed
Senior Secured Notes Due 2004 of WinStar Equipment Corp.

                  "March 1997  Equipment  Notes  Indenture"  means the indenture
relating to the March 1997 Equipment Notes, as originally  executed or as it may
be  amended  or  supplemented  from  time  to  time  by one or  more  indentures
supplemental thereto entered into pursuant to the applicable provisions thereof.

                  "March 1997 Notes" means the March 1997 Senior Notes and the
March 1997 Equipment Notes.

                  "March 1997 Senior Notes" means the 14 1/2% Senior Deferred
Interest Notes Due 2005 of the Company.

                  "March  1997  Senior  Notes  Indenture"  means  the  indenture
relating to the March 1997 Senior Notes, as originally  executed or as it may be
amended or supplemented from time to time by one or more indentures supplemental
thereto entered into pursuant to the applicable provisions thereof.

                  "Net Cash Proceeds" means, (a) with respect to any Asset Sale,
the  proceeds  of  such  Asset  Sale in the  form  of cash or cash  equivalents,
including payments



<PAGE>

                                       14

in respect of deferred payment  obligations (to the extent  corresponding to the
principal,  but not  interest,  component  thereof) when received in the form of
cash or cash equivalents  (except to the extent such obligations are financed or
sold with recourse to the Company or any  Restricted  Subsidiary of the Company)
and proceeds from the  conversion of other  property  received when converted to
cash or cash  equivalents,  net of (i) brokerage  commissions and other fees and
expenses (including fees and expenses of counsel and investment bankers) related
to such Asset Sale,  (ii)  provisions  for all taxes  (whether or not such taxes
will  actually be paid or are  payable)  as a result of such Asset Sale  without
regard  to the  consolidated  results  of  operations  of the  Company  and  its
Restricted  Subsidiaries,  taken  as a  whole,  (iii)  payments  made  to  repay
Indebtedness or any other obligation  outstanding at the time of such Asset Sale
that  either (A) is secured by a Lien on the  property  or assets sold or (B) is
required to be paid as a result of such sale and (iv) appropriate  amounts to be
provided by the Company or any Restricted Subsidiary of the Company as a reserve
against any  liabilities  associated  with such Asset Sale,  including,  without
limitation,  pension and other post-employment benefit liabilities,  liabilities
related to  environmental  matters  and  liabilities  under any  indemnification
obligations  associated  with such Asset Sale,  all as  determined in conformity
with GAAP and (b) with  respect to any  issuance or sale of Capital  Stock,  the
proceeds  of such  issuance  or sale  in the  form of cash or cash  equivalents,
including  payments in respect of deferred  payment  obligations  (to the extent
corresponding  to the  principal,  but not  interest,  component  thereof)  when
received  in the form of cash or cash  equivalents  (except to the  extent  such
obligations  are financed or sold with recourse to the Company or any Restricted
Subsidiary  of the Company) and proceeds from the  conversion of other  property
received when  converted to cash or cash  equivalents,  net of attorneys'  fees,
accountants'  fees,  underwriters'  or  placement  agents'  fees,  discounts  or
commissions and brokerage, consultant and other fees incurred in connection with
such  issuance or sale and net of taxes paid or payable by the Company or any of
its subsidiaries as a result thereof.

                  "Offer to Purchase"  means an offer to purchase  Securities by
the Company  from the Holders  required by Section 4.10 or Section 4.11 which is
commenced  by mailing a notice to the Trustee and each Holder  stating:  (i) the
covenant  pursuant  to which  the  offer is being  made and that all  Securities
validly  tendered  will be accepted  for  payment on a pro rata basis;  (ii) the
purchase  price and the Payment Date;  (iii) that any Security not tendered will
continue to accrue interest pursuant to its terms; (iv) that, unless the Company
defaults in the payment of the purchase price, any Security accepted for payment
pursuant  to the Offer to Purchase  shall cease to accrue  interest on and after
the  Payment  Date;  (v) that  Holders  electing  to have a  Security  purchased
pursuant to the Offer to Purchase  will be required to  surrender  the  Security
together with the form entitled  "Option of the Holder to Elect Purchase" on the
reverse side thereof completed, to the Paying Agent at the address



<PAGE>

                                       15

specified  in the notice  prior to the close of  business  on the  Business  Day
immediately  preceding the Payment  Date;  (vi) that Holders will be entitled to
withdraw their election if the Paying Agent  receives,  not later than the close
of business on the third Business Day immediately  preceding the Payment Date, a
telegram,  facsimile  transmission  or  letter  setting  forth  the name of such
Holder,  the  principal  amount  of  Securities  delivered  for  purchase  and a
statement that such Holder is withdrawing  his election to have such  Securities
purchased;  and (vii) that Holders whose  Securities are being purchased only in
part will be issued new  Securities  equal in principal  amount (and accrued and
unpaid interest) to the unpurchased  portion thereof;  provided,  however,  that
each  Security  purchased  and each new Security  issued shall be in a principal
amount of $1,000 or integral multiples thereof. On the Payment Date, the Company
shall (i) accept for  payment on a pro rata  basis any  Securities  or  portions
thereof tendered pursuant to an Offer to Purchase;  (ii) deposit with the Paying
Agent money  sufficient to pay the purchase  price of all Securities or portions
thereof so accepted; and (iii) deliver, or cause to be delivered, to the Trustee
all  Securities  or portions  thereof so  accepted  together  with an  Officers'
Certificate  specifying the Securities or portions  thereof accepted for payment
by the  Company.  The Paying  Agent  shall  promptly  mail to the Holders of the
Securities so accepted for payment in an amount equal to the purchase price, and
the Trustee shall promptly  authenticate and mail to such Holders a new Security
equal  in  principal  amount  to  any  unpurchased  portion  of  the  Securities
surrendered;  provided,  however,  that  each  Security  purchased  and each new
Security issued shall be in a principal  amount of $1,000 or integral  multiples
thereof.  The Company will publicly announce the results of an Offer to Purchase
as soon as  practicable  after the Payment  Date.  The Trustee  shall act as the
Paying Agent for an Offer to  Purchase.  The Company will comply with Rule 14e-1
under the Exchange Act and any other securities laws and regulations  thereunder
to the extent such laws and regulations  are  applicable,  in the event that the
Company is required to repurchase Securities pursuant to an Offer to Purchase.

                  "Officer" means, with respect to the Company, (i) the Chairman
of the Board, the Vice-Chairman of the Board, the Chief Executive  Officer,  the
President,  any  Vice  President,  the  Chief  Financial  Officer  and  (ii) the
Treasurer  or any  Assistant  Treasurer,  or  the  Secretary  or  any  Assistant
Secretary.

                  "Officers'  Certificate"  means a  certificate  signed  by one
Officer listed in clause (i) of the definition thereof and one Officer listed in
clause  (ii)  of the  definition  thereof;  provided,  however,  that  any  such
certificate may be signed by any two of the Officers listed in clause (i) of the
definition  thereof in lieu of being signed by one Officer  listed in clause (i)
of the  definition  thereof  and  one  Officer  listed  in  clause  (ii)  of the
definition thereof. Each Officers' Certificate (other than certificates provided



<PAGE>

                                       16

pursuant to TIA Section 314(a)(4)) shall include the statements provided for in
TIA Section 314(e).

                  "Old Senior Notes" means the 14% Senior Discount Notes due
2005 of the Company.

                  "Opinion of Counsel"  means a written  opinion signed by legal
counsel who may be an employee of or counsel to the  Company.  Each such Opinion
of Counsel shall include the statements provided for in TIA Section 314(e).

                  "Paying Agent" has the meaning provided in Section 2.03,
except that, for the purposes of Article Eight, the Paying Agent shall not be
the Company or a Subsidiary of the Company or an Affiliate of any of them. The
term "Paying Agent" includes any additional Paying Agent.

                  "Payment  Date" means the date of  purchase,  which shall be a
Business  Day no  earlier  than 30 days nor  later  than 60 days from the date a
notice is mailed pursuant to an Offer to Purchase.

                  "Permitted Investment" means (i) an Investment in a Restricted
Subsidiary or a Person which will, upon the making of such Investment,  become a
Restricted  Subsidiary or be merged or consolidated  with or into or transfer or
convey all or  substantially  all its assets  to,  the  Company or a  Restricted
Subsidiary;  (ii) Temporary Cash Investments;  (iii) payroll, travel and similar
advances  to cover  matters  that  are  expected  at the  time of such  advances
ultimately  to be treated as expenses  in  accordance  with GAAP;  (iv) loans or
advances to employees in a principal amount not to exceed  $1,000,000 at any one
time outstanding;  (v) stock, obligations or securities received in satisfaction
of judgments; (vi) Investments, to the extent that the consideration provided by
the Company or any of its  Restricted  Subsidiaries  consists  solely of Capital
Stock (other than Redeemable  Stock) of the Company;  (vii) notes payable to the
Company that are  received by the Company as payment of the  purchase  price for
Capital  Stock  (other  than  Redeemable  Stock)  of  the  Company;  and  (viii)
acquisitions  of  a  minority  equity  interest  in  entities   engaged  in  the
telecommunications  business;  provided,  however, that (A) the acquisition of a
majority  equity  interest in such  entities  is not  permitted  under U.S.  law
without FCC consent,  (B) the Company or one of its Restricted  Subsidiaries has
the right to acquire  Capital Stock  representing a majority of the voting power
of the Voting  Stock of such entity  upon  receipt of FCC consent and (C) in the
event that such consent has not been  obtained  within 18 months of funding such
Investment,  the Company or one of its Restricted  Subsidiaries has the right to
sell such minority equity interest in the seller



<PAGE>

                                       17

thereof for consideration consisting of the consideration originally paid by the
Company and its Restricted Subsidiaries for such minority equity interest.

                  "Permitted Investor" means William J. Rouhana, Jr.

                  "Person"  means  any  individual,  corporation,   partnership,
limited  liability  company,  joint venture,  association,  joint stock company,
trust,  unincorporated  organization,  government  or any  agency  or  political
subdivision thereof or any other entity.

                  "Preferred Stock" means,  with respect to any Person,  any and
all shares, interests,  participations or other equivalents (however designated,
whether voting or non-voting)  of such Person's  preferred or preference  stock,
whether  now  outstanding  or issued  after the Issue Date,  including,  without
limitation, all series and classes of such preferred or preference stock.

                  "Principal"  of a debt  security,  including  the  Securities,
means the  principal  amount  due on the Stated  Maturity  as shown on such debt
security.

                  "Redeemable  Stock" means any class or series of Capital Stock
of any Person  that by its terms or  otherwise  is (i)  required  to be redeemed
prior to the Stated Maturity of the Securities, (ii) redeemable at the option of
the  holder of such  class or series of  Capital  Stock at any time prior to the
Stated  Maturity  of the  Securities  (unless  the  redemption  price is, at the
Company's option,  without conditions precedent,  payable solely in Common Stock
(other  than  Redeemable  Stock) of the  Company) or (iii)  convertible  into or
exchangeable  for  Capital  Stock  referred  to in clause  (i) or (ii)  above or
Indebtedness  having a scheduled  maturity  prior to the Stated  Maturity of the
Securities;  provided, however, that any Capital Stock that would not constitute
Redeemable Stock but for provisions  thereof giving holders thereof the right to
require  such  Person  to  repurchase  or redeem  such  Capital  Stock  upon the
occurrence  of an "asset  sale" or "change of  control"  occurring  prior to the
Stated Maturity of the Securities  shall not constitute  Redeemable Stock if the
"asset sale" or "change of control" provisions  applicable to such Capital Stock
are no more  favorable to the holders of such Capital Stock than the  provisions
of Section 4.10 and Section 4.11 and such Capital  Stock  specifically  provides
that such Person will not  repurchase or redeem any such stock  pursuant to such
provision  prior to the Company's  repurchase of such Securities as are required
to be repurchased pursuant to the provisions of Section 4.10 and Section 4.11.

                  "Redemption  Date",  when used with respect to any Security to
be  redeemed,  means the date fixed for such  redemption  by or pursuant to this
Indenture.



<PAGE>

                                       18

                  "Redemption  Price", when used with respect to any Security to
be redeemed,  means the price at which such Security is to be redeemed  pursuant
to this Indenture.

                  "Registrar" has the meaning provided in Section 2.03.

                  "Regular Record Date" for the interest payable on any Interest
Payment Date means  February 15 or August 15 (whether or not a Business Day), as
the case may be, next preceding such Interest Payment Date.

                  "Responsible Officer",  when used with respect to the Trustee,
means the chairman or any vice chairman of the board of directors,  the chairman
or any vice chairman of the executive  committee of the board of directors,  the
chairman  of the  trust  committee,  the  president,  any  vice  president,  any
assistant vice president, the secretary, any assistant secretary, the treasurer,
any assistant  treasurer,  the cashier, any assistant cashier, any trust officer
or assistant  trust officer,  the controller or any assistant  controller or any
other officer of the Trustee customarily  performing  functions similar to those
performed by any of the above designated  officers and also means,  with respect
to a particular corporate trust matter, any other officer to whom such matter is
referred  because of his or her knowledge of and familiarity with the particular
subject.

                 "Restricted Payments" has the meaning provided in Section 4.05.

                  "Restricted Subsidiary" means any Subsidiary of the Company
other than an Unrestricted Subsidiary.

                  "SEC" means the Securities and Exchange Commission and any
successor agency.

                  "Securities"  means any of the  securities,  as defined in the
first paragraph of the recitals  hereof,  that are  authenticated  and delivered
under this Indenture.

                  "Securities Act" means the Securities Act of 1933, as amended.

                  "Security Register" has the meaning provided in Section 2.03.

                  "Senior  Indebtedness" means the following  obligations of the
Company,  whether  outstanding  on the  date of  this  Indenture  or  thereafter
Incurred: (i) all Indebtedness and all other monetary obligations of the Company
under the Old  Senior  Notes,  the  March  1997  Senior  Notes,  the March  1997
Equipment Note Guarantee and the August 1997 Equipment Note Guarantee;  (ii) all
other Indebtedness of the Company



<PAGE>

                                       19

(other than the Securities and the Convertible  Notes),  including principal and
interest on such Indebtedness,  unless such Indebtedness, by its terms or by the
terms of any  agreement or  instrument  pursuant to which such  Indebtedness  is
issued,  is pari  passu  with,  or  subordinated  in right of  payment  to,  the
Securities;  and (iii) all fees,  expenses and indemnities payable in connection
with the Old Senior Notes, the March 1997 Senior Notes, the March 1997 Equipment
Note  Guarantee and the August 1997  Equipment  Note  Guarantee  (including  any
agreement  pursuant  to which the Old Senior  Notes are  issued,  any  agreement
pursuant to which the March 1997 Senior Notes are issued, any agreement pursuant
to which the March 1997  Equipment  Note  Guarantee is issued and any  agreement
pursuant to which the August 1997 Equipment Note Guarantee is issued); provided,
however,  that  the  term  "Senior  Indebtedness"  shall  not  include  (a)  any
Indebtedness  of the Company  that,  when  Incurred  and without  respect to any
election under Section 1111(b) of the United States Bankruptcy Code, was without
recourse to the Company,  (b) any Indebtedness of the Company to a Subsidiary of
the Company or to a joint venture in which the Company has an interest,  (c) any
Indebtedness  of the  Company,  to the extent not  permitted  by Section 4.03 or
Section 4.04, (d) any repurchase,  redemption or other  obligation in respect of
Redeemable  Stock, (e) any Indebtedness to any employee of the Company or any of
its  Subsidiaries,  (f) any liability for federal,  state,  local or other taxes
owed or owing by the Company or (g) any trade payables of the Company.  The term
"Senior  Indebtedness" shall also include interest accruing subsequent to events
of  bankruptcy of the Company and its  Subsidiaries  at the rate provided for in
the document governing such Senior Indebtedness, whether or not such interest is
an allowed  claim  enforceable  against  the debtor in a  bankruptcy  case under
federal bankruptcy law.

                  "Senior  Subordinated  Obligations"  means any  principal  of,
premium,  if any, or interest on the Securities payable pursuant to the terms of
the Securities or upon  acceleration,  to the extent relating to the purchase of
Securities  or amounts  corresponding  to such  principal,  premium,  if any, or
interest on the Securities.

                  "Significant  Subsidiary" means, at any date of determination,
any Restricted  Subsidiary of the Company that,  together with its Subsidiaries,
(i) for the most recent fiscal year of the Company,  accounted for more than 10%
of the consolidated  revenues of the Company and its Restricted  Subsidiaries or
(ii) as of the end of such  fiscal  year,  was the owner of more than 10% of the
consolidated assets of the Company and its Restricted  Subsidiaries,  all as set
forth on the most recently available  consolidated  financial  statements of the
Company for such fiscal year.

                  "Stated   Maturity"  means,  (i)  with  respect  to  any  debt
security,  the date  specified in such debt  security as the fixed date on which
the final  installment of principal of such debt security is due and payable and
(ii) with respect to any scheduled



<PAGE>

                                       20

installment of principal of or interest on any debt security, the date specified
in such debt  security  as the fixed date on which such  installment  is due and
payable.

                  "Subsidiary"   means,   with   respect  to  any  Person,   any
corporation,  association  or  other  business  entity  of  which  Voting  Stock
representing  more than 50% of the voting power of the outstanding  Voting Stock
is  owned,  directly  or  indirectly,  by such  Person  and  one or  more  other
Subsidiaries of such Person.

                  "Subsidiary Guarantee" has the meaning provided in Section
4.08.

                  "Telecommunications  Assets"  means any (i) entity or business
substantially  all  the  revenues  of  which  are  derived  from  (a)  providing
transmission of sound,  data or video; (b) the sale or provision of phone cards,
"800" services,  voice mail, switching,  enhanced  telecommunications  services,
telephone    directory   or   telephone   number    information    services   or
telecommunications  network  intelligence;  or (c)  any  business  ancillary  or
directly  related to the  businesses  referred to in clause (a) or (b) above and
(ii) any assets  used  primarily  to effect  such  transmission  or provide  the
products  or services  referred  to in clause (a) or (b) above and any  directly
related  or  ancillary  assets  including,  without  limitation,   licenses  and
applications,  bids and agreements to acquire  licenses,  or other  authority to
provide transmission services previously granted, or to be granted, by the FCC.

                  "Telecommunications Subsidiary" means (i) WCI Gateway, WinStar
Wireless,  Inc., WinStar  Telecommunications,  Inc.,  WinStar  Milliwave,  Inc.,
WinStar  Locate,  Inc., and WinStar  Wireless Fiber Corp. and, in each case, its
successors  and (ii) any other  Restricted  Subsidiary of the Company that holds
more than a de minimis amount of Telecommunications Assets.

                  "Temporary Cash  Investment"  means any of the following:  (i)
direct  obligations  of the United States or any agency  thereof or  obligations
fully and unconditionally guaranteed by the United States or any agency thereof;
(ii) time deposit  accounts,  certificates  of deposit and money market deposits
maturing within 180 days of the date of acquisition  thereof issued by a bank or
trust company which is organized under the laws of the United States,  any state
thereof or any foreign country  recognized by the United States,  and which bank
or trust  company has capital,  surplus and  undivided  profits  aggregating  in
excess of  $50,000,000  (or the foreign  currency  equivalent  thereof)  and has
outstanding  deposits  or debt  which is rated "A" (or such  similar  equivalent
rating)  or higher  by at least one  nationally  recognized  statistical  rating
organization  (as  defined  in  Rule  436  under  the  Securities  Act)  or  any
money-market  fund  sponsored  by a  registered  broker  dealer or  mutual  fund
distributor;  (iii) repurchase  obligations with a term of not more than 30 days
for underlying



<PAGE>

                                       21

securities  of the types  described in clause (i) above entered into with a bank
meeting the  qualifications  described  in clause (ii)  above;  (iv)  commercial
paper,  maturing not more than six months after the date of acquisition,  issued
by a  corporation  (other than an  Affiliate of the  Company)  organized  and in
existence under the laws of the United States,  any state thereof or any foreign
country  recognized  by the United  States with a rating at the time as of which
any  investment  therein  is made of "P-1"  (or  higher)  according  to  Moody's
Investors  Service,  Inc.  or "A-1" (or higher)  according  to Standard & Poor's
Ratings Group; and (v) securities with maturities of six months or less from the
date of acquisition issued or fully and unconditionally guaranteed by any state,
commonwealth or territory of the United States, or by any political  subdivision
or taxing authority thereof, and rated at least "A" by Standard & Poor's Ratings
Group or Moody's Investors Service, Inc.

                  "TIA" or "Trust  Indenture Act" means the Trust  Indenture Act
of 1939, as amended (15 U.S. Code ss.ss. 77aaa-77bbb),  as in effect on the date
this Indenture was executed, except as provided in Section 9.06.

                  "Transaction  Date" means,  with respect to the  Incurrence of
any Indebtedness by the Company or any of its Restricted Subsidiaries,  the date
such Indebtedness is to be Incurred and, with respect to any Restricted Payment,
the date such Restricted Payment is to be made.

                  "Trustee" means the party named as such in the first paragraph
of  this  Indenture  until  a  successor  replaces  it in  accordance  with  the
provisions  of  Article  Seven  of this  Indenture  and  thereafter  means  such
successor.

                  "United States  Bankruptcy  Code" means the Bankruptcy  Reform
Act of 1978,  as amended and as codified in Title 11 of the United  States Code,
as amended from time to time hereafter, or any successor federal bankruptcy law.

                  "Unrestricted  Subsidiary"  means  (i) any  Subsidiary  of the
Company that at the time of  determination  shall be designated an  Unrestricted
Subsidiary by the Board of Directors in the manner  provided  below and (ii) any
Subsidiary of an Unrestricted  Subsidiary.  The Board of Directors may designate
any Restricted  Subsidiary of the Company (including any newly acquired or newly
formed Subsidiary of the Company), other than a guarantor of the Securities,  to
be an Unrestricted  Subsidiary unless such Subsidiary owns any Capital Stock of,
or owns or holds any Lien on any  property  of, the  Company  or any  Restricted
Subsidiary;  provided,  however,  that  neither the  Company nor its  Restricted
Subsidiaries   has  any  Guarantee  of  any   Indebtedness  of  such  Subsidiary
outstanding at the time of such  designation and either (A) the Subsidiary to be
so designated  has total assets of $1,000 or less or (B) if such  Subsidiary has
assets



<PAGE>

                                       22

greater  than  $1,000,  that  such  designation  would be  permitted  under  the
provisions of Section 4.05.  Notwithstanding  the  foregoing,  WinStar New Media
Company Inc., Non Fiction Films Inc. and WinStar Global Products, Inc. and their
Subsidiaries are Unrestricted Subsidiaries. The Board of Directors may designate
any  Unrestricted  Subsidiary  to be a  Restricted  Subsidiary  of the  Company;
provided,  however, that immediately after giving effect to such designation (x)
the  Company  could  Incur  $1.00 of  additional  Indebtedness  under  the first
paragraph  of Section  4.03 and (y) no  Default  or Event of Default  shall have
occurred and be continuing. Any such designation by the Board of Directors shall
be  evidenced  to the Trustee by promptly  filing with the Trustee a copy of the
Board Resolution giving effect to such designation and an Officers'  Certificate
certifying  that  such  designation  complied  with  the  foregoing  provisions.
Anything  to the  contrary  contained  in  this  Indenture  notwithstanding,  no
Telecommunications Subsidiary may be designated an Unrestricted Subsidiary.

                  "U.S.  Government  Obligations"  means securities that are (i)
direct  obligations of the United States of America for the payment of which its
full faith and credit is pledged or (ii)  obligations of a Person  controlled or
supervised by and acting as an agency or instrumentality of the United States of
America the payment of which is  unconditionally  guaranteed as a full faith and
credit  obligation by the United States of America,  which,  in either case, are
not callable or redeemable at the option of the issuer thereof at any time prior
to the Stated  Maturity of the  Securities,  and shall also include a depositary
receipt  issued by a bank or trust company as custodian with respect to any such
U.S. Government  Obligation or a specific payment of interest on or principal of
any such U.S.  Government  Obligation  held by such custodian for the account of
the holder of a depositary receipt; provided,  however, that (except as required
by law) such  custodian is not  authorized to make any deduction from the amount
payable to the holder of such depositary receipt from any amount received by the
custodian in respect of the U.S.  Government  Obligation or the specific payment
of interest on or principal of the U.S. Government  Obligation evidenced by such
depositary receipt.

                  "Voting Stock" means with respect to any Person, Capital Stock
of any class or kind  ordinarily  having the power to vote for the  election  of
directors,  managers  or other  voting  members  of the  governing  body of such
Person.

                  "WCI Gateway" means WinStar Gateway Network, Inc. and its
successors.

                  "Wholly  Owned" means,  with respect to any  Subsidiary of any
Person,  such  Subsidiary  if all of  the  outstanding  Capital  Stock  in  such
Subsidiary  (other  than any  director's  qualifying  shares or  Investments  by
foreign nationals mandated by



<PAGE>

                                       23

applicable law) is owned by such Person or one or more Wholly Owned Subsidiaries
of such Person.

                  SECTION 1.02.  Incorporation  by Reference of Trust  Indenture
Act.  Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated  by reference in and made a part of this  Indenture.  The following
TIA terms used in this Indenture have the following meanings:

                  "indenture securities" means the Securities;

                 "indenture security holder" means a Holder or a Securityholder;

                  "indenture to be qualified" means this Indenture;

                  "indenture trustee" or "institutional trustee" means the
Trustee; and

                  "obligor" on the indenture securities means the Company or any
other obligor on the Securities.

                  All other TIA terms used in this Indenture that are defined by
the TIA, defined by TIA reference to another statute or defined by a rule of the
SEC and not otherwise defined herein have the meanings assigned to them therein.

                  SECTION 1.03.  Rules of Construction.  Unless the context
otherwise requires:

     (i) a term has the meaning assigned to it;

     (ii) an accounting term not otherwise  defined has the meaning  assigned to
it in accordance with GAAP;

     (iii) "or" is not exclusive;

     (iv) words in the  singular  include  the  plural,  and words in the plural
include the singular;

     (v) provisions apply to successive events and transactions;

     (vi)  "herein,"  "hereof"  and other words of similar  import refer to this
Indenture  as a whole  and  not to any  particular  Article,  Section  or  other
subdivision; and



<PAGE>

                                       24

     (vii) all  references to Sections or Articles refer to Sections or Articles
of this Indenture unless otherwise indicated.

                  SECTION 1.04. Ranking of the Securities.  The Securities shall
rank pari passu with the Convertible Notes.


                                   ARTICLE TWO

                                 THE SECURITIES

                  SECTION  2.01.  Form and  Dating.  Provisions  relating to the
Initial Securities,  the Private Exchange Securities and the Exchange Securities
are set  forth in the Rule  144A/Regulation  S  Appendix  attached  hereto  (the
"Appendix")  which is hereby  incorporated  in and  expressly  made part of this
Indenture.   The  Initial   Securities   and  the   Trustee's   certificate   of
authentication  shall be  substantially in the form of Exhibit 1 to the Appendix
(with such appropriate insertions, omissions, substitutions and other variations
as are required by this Indenture) which is hereby incorporated in and expressly
made a part of this Indenture.  The Exchange  Securities,  the Private  Exchange
Securities   and  the  Trustee's   certificate   of   authentication   shall  be
substantially  in the  form of  Exhibit  A (with  such  appropriate  insertions,
omissions,   substitutions   and  other  variations  as  are  required  by  this
Indenture),  which is hereby  incorporated  in and expressly made a part of this
Indenture.  The Securities may have notations,  legends or endorsements required
by law, stock exchange rule, agreements to which the Company is subject, if any,
or usage  (provided that any such  notation,  legend or endorsement is in a form
acceptable  to the  Company).  Each  Security  shall  be  dated  the date of its
authentication.  The  terms of the  Securities  set  forth in the  Appendix  and
Exhibit A are part of the terms of this Indenture.

                  SECTION 2.02. Execution and Authentication. Two Officers shall
sign the Securities for the Company by manual or facsimile signature.

                  If an Officer whose signature is on a Security no longer holds
that office at the time the Trustee  authenticates  the  Security,  the Security
shall be valid nevertheless.

                  A Security shall not be valid until an authorized signatory of
the Trustee  manually signs the certificate of  authentication  on the Security.
The  signature  shall  be  conclusive   evidence  that  the  Security  has  been
authenticated under this Indenture.




<PAGE>

                                       25

                  The Trustee  shall  authenticate  and deliver  Securities  for
original issue upon a written order of the Company signed by two Officers.  Such
order shall  specify the amount of the  Securities to be  authenticated  (not to
exceed  $100,000,000)  and the date on which the original issue of Securities is
to be authenticated. The aggregate principal amount of Securities outstanding at
any time may not exceed that amount except as provided in Section 2.07.

                  The Trustee may appoint an authenticating agent acceptable to
the Company to authenticate the Securities.  Unless limited by the terms of such
appointment, an authenticating agent may authenticate Securities whenever the
Trustee may do so.  Each reference in this Indenture to authentication by the
Trustee includes authentication by such agent.  An authenticating agent has th
same rights as any Registrar or Paying Agent.

                  SECTION 2.03.  Registrar  and Paying Agent.  The Company shall
maintain an office or agency where  Securities may be presented for registration
of transfer or for  exchange  (the  "Registrar")  and an office or agency  where
Securities  may be presented  for payment (the "Paying  Agent").  The  Registrar
shall keep a register of the  Securities and of their transfer and exchange (the
"Security Register").  The Company may have one or more co-registrars and one or
more additional  paying agents.  The term "Paying Agent" includes any additional
paying agent.

                  The Company shall enter into an appropriate  agency  agreement
with any Registrar,  Paying Agent or co-registrar not a party to this Indenture,
which shall  incorporate the terms of the TIA. The agreement shall implement the
provisions of this Indenture that relate to such Agent. The Company shall notify
the Trustee of the name and address of any such Agent.  If the Company  fails to
maintain a Registrar or Paying Agent, the Trustee shall act as such and shall be
entitled to  appropriate  compensation  therefor  pursuant to Section 7.07.  The
Company or any of its domestically  incorporated  Wholly Owned  Subsidiaries may
act as Paying Agent, Registrar, co-registrar or transfer agent.

                  The Company  initially  appoints the Trustee as Registrar  and
Paying Agent in connection with the Securities.

                  SECTION 2.04. Paying Agent To Hold Money in Trust. On or prior
to each due date of the  principal  and  interest on any  Security,  the Company
shall deposit with the Paying Agent a sum  sufficient to pay such  principal and
interest  when so becoming  due.  The Company  shall  require  each Paying Agent
(other than the Trustee) to agree in writing that the Paying Agent shall hold in
trust for the benefit of Securityholders or the Trustee all money held by the
Paying Agent for the payment of principal



<PAGE>

                                       26

of or interest on the  Securities and shall notify the Trustee of any default by
the Company in making any such payment.  If the Company or a Subsidiary  acts as
Paying Agent,  it shall  segregate the money held by it as Paying Agent and hold
it as a separate  trust fund. The Company at any time may require a Paying Agent
to pay all  money  held  by it to the  Trustee  and to  account  for  any  funds
disbursed by the Paying Agent.  Upon  complying  with this  Section,  the Paying
Agent shall have no further liability for the money delivered to the Trustee.

                  SECTION 2.05. Securityholder Lists. The Trustee shall preserve
in as current a form as is reasonably practicable the most recent list available
to it of the names and addresses of  Securityholders.  If the Trustee is not the
Registrar,  the Company  shall  furnish to the Trustee,  in writing on or before
each interest payment date and at such other times as the Trustee may request in
writing,  a list in such form and as of such date as the Trustee may  reasonably
require of the names and addresses of Securityholders.

                  SECTION 2.06.  Transfer and Exchange.  The Securities shall be
issued in registered form and shall be transferable only upon the surrender of a
Security for  registration  of transfer.  When  Securities  are presented to the
Registrar or a co-registrar with a request (i) to register a transfer or (ii) to
exchange   them  for  an  equal   principal   amount  of   Securities  of  other
denominations,  the Registrar  shall register the transfer or make the transfer,
as requested if the requirements of Section  8-401(1) of the Uniform  Commercial
Code are met; provided,  however, that any Security presented or surrendered for
registration  of transfer or exchange shall be duly endorsed or accompanied by a
written  instrument  of transfer in form  satisfactory  to the Registrar and the
Trustee duly executed by the Holder  thereof or by his attorney duly  authorized
in writing. To permit registration of transfers and exchanges, the Company shall
execute and the Trustee  shall  authenticate  Securities at the  Registrar's  or
co-registrar's  request.  The Company may require payment of a sum sufficient to
pay all taxes,  assessments or other governmental charges in connection with any
transfer or exchange pursuant to this Section. The Company shall not be required
to make and the Registrar need not register transfers or exchanges of Securities
selected for  redemption  (except,  in the case of  Securities to be redeemed in
part, the portion  thereof not to be redeemed) or any Securities for a period of
15 days before a  selection  of  Securities  to be redeemed or 15 days before an
interest payment date.

                  Prior to the due  presentation for registration of transfer of
any Security,  the Company,  the Trustee, the Paying Agent, the Registrar or any
co-registrar  may  deem  and  treat  the  person  in whose  name a  Security  is
registered  as the absolute  owner of such Security for the purpose of receiving
payment of principal of and interest on such Security and for all other purposes
whatsoever, whether or not such Security is



<PAGE>

                                       27

overdue,  and none of the Company,  the Trustee, the Paying Agent, the Registrar
or any co-registrar shall be affected by notice to the contrary.

                  All Securities  issued upon any transfer or exchange  pursuant
to the terms of this  Indenture will evidence the same debt and will be entitled
to the same benefits  under this Indenture as the  Securities  surrendered  upon
such transfer or exchange.

                  SECTION 2.07. Replacement Securities.  If a mutilated Security
is surrendered  to the Registrar or if the Holder of a Security  claims that the
Security has been lost,  destroyed or wrongfully  taken, the Company shall issue
and the Trustee shall  authenticate  and deliver a  replacement  Security if the
requirements  of Section  8-405 of the Uniform  Commercial  Code are met and the
Holder satisfies any other reasonable  requirements of the Trustee.  If required
by the Trustee or the  Company,  such Holder  shall  furnish an  indemnity  bond
sufficient  in the  judgment  of the  Company  and the  Trustee to  protect  the
Company,  the Trustee, the Paying Agent, the Registrar and any co-registrar from
any loss which any of them may suffer if a Security is replaced. The Company and
the Trustee may charge the Holder for their expenses in replacing a Security.

                  Every replacement Security is an additional  obligation of the
Company.

                  SECTION 2.08. Outstanding  Securities.  Securities outstanding
at any time are all  Securities  authenticated  by the Trustee  except for those
canceled by it, those  delivered to it for  cancellation  and those described in
this Section as not  outstanding.  A Security  does not cease to be  outstanding
because the Company or an Affiliate of the Company holds the Security; provided,
however,  that, in  determining  whether the Holders of the requisite  principal
amount  of  the  outstanding   Securities   have  given  any  request,   demand,
authorization,  direction, notice, consent or waiver hereunder, Securities owned
by the Company or any other obligor upon the  Securities or any Affiliate of the
Company  or of such  other  obligor  shall be  disregarded  and deemed not to be
outstanding,  except that, in determining whether the Trustee shall be protected
in relying upon any such  request,  demand,  authorization,  direction,  notice,
consent or waiver,  only Securities which the Trustee knows to be so owned shall
be so disregarded. Securities so owned which have been pledged in good faith may
be regarded as outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's  right so to act with respect to such  Securities and that
the pledgee is not the Company or any other  obligor upon the  Securities or any
Affiliate of the Company or of such other obligor.




<PAGE>

                                       28

                  If a Security is replaced  pursuant to Section 2.07, it ceases
to be outstanding  unless the Trustee and the Company receive proof satisfactory
to them that the replaced Security is held by a bona fide purchaser.

                  If  the  Paying  Agent  segregates  and  holds  in  trust,  in
accordance  with this  Indenture,  on a redemption  date or maturity  date money
sufficient to pay all  principal and interest  payable on that date with respect
to the Securities (or portions thereof) to be redeemed or maturing,  as the case
may be, then on and after that date, such Securities (or portions thereof) shall
cease to be outstanding and interest on them shall cease to accrue.

                  SECTION   2.09.   Temporary   Securities.   Until   definitive
Securities are ready for delivery, the Company may prepare and the Trustee shall
authenticate and deliver  temporary  Securities.  Temporary  Securities shall be
substantially in the form of definitive  Securities but may have variations that
the Company and the  Trustee  consider  appropriate  for  temporary  Securities.
Without  unreasonable  delay,  the Company  shall  prepare and the Trustee shall
authenticate  definitive  Securities  and deliver them in exchange for temporary
Securities.

                  SECTION  2.10.  Cancellation.  The  Company  at any  time  may
deliver Securities to the Trustee for cancellation. The Registrar and the Paying
Agent  shall  forward to the  Trustee  any  Securities  surrendered  to them for
registration of transfer, exchange or payment. The Trustee and no one else shall
cancel and destroy (subject to the record retention requirements of the Exchange
Act) all Securities surrendered for registration of transfer,  exchange, payment
or  cancellation  and deliver a certificate  of such  destruction to the Company
unless the Company  directs the Trustee to deliver  canceled  Securities  to the
Company.  The Company may not issue new Securities to replace  Securities it has
redeemed, paid or delivered to the Trustee for cancellation.

                  SECTION  2.11.  Defaulted  Interest.  If and to the extent the
Company  defaults in a payment of interest on the Securities,  the Company shall
pay defaulted  interest (plus interest on such defaulted  interest to the extent
lawful) in any lawful manner.  The Company may pay the defaulted interest to the
persons who are Securityholders on a subsequent special record date. The Company
shall fix or cause to be fixed any such special  record date and payment date to
the  reasonable  satisfaction  of the  Trustee and shall  promptly  mail to each
Securityholder  a notice that states the special  record date,  the payment date
and the amount of defaulted interest to be paid.

                  SECTION  2.12.  CUSIP  Numbers.  The  Company in  issuing  the
Securities  may use "CUSIP"  numbers (if then  generally in use) and, if so, the
Trustee shall use "CUSIP"  numbers in notices of redemption as a convenience  to
Holders;



<PAGE>

                                       29

provided, however, that any such notice may state that no representation is made
as to the  correctness of such numbers either as printed on the Securities or as
contained in any notice of a redemption  and that reliance may be placed only on
the  other  identification  numbers  printed  on the  Securities,  and any  such
redemption shall not be affected by any defect in or omission of such numbers.


                                  ARTICLE THREE

                                   REDEMPTION

                  SECTION  3.01.  Right of  Redemption.  The  Securities  may be
redeemed at the election of the Company,  in whole at any time,  or in part from
time to time on or after March 1, 2002 and prior to maturity, upon not less than
30 nor more  than 60 days'  prior  notice  mailed  by  first-class  mail to each
Holder's last address as it appears in the Security  Register,  at the following
Redemption  Prices  (expressed as a percentage of the Accumulated  Amount of the
Securities),  plus  accrued and unpaid  interest,  if any,  on such  Accumulated
Amount to the Redemption  Date (subject to the right of Holders of record on the
relevant  Regular  Record  Date  that is on or prior to the  Redemption  Date to
receive interest due on the relevant  Interest Payment Date), if redeemed during
the 12-month period commencing on March 1 of the years set forth below:

================================================================================
                 Year                              Redemption Price
- --------------------------------------------------------------------------------
2002                                                            107.500%
- --------------------------------------------------------------------------------
2003                                                            103.750
- --------------------------------------------------------------------------------
2004 and thereafter                                             100.000
================================================================================


                  SECTION  3.02.  Notices to Trustee.  If the Company  elects to
redeem  Securities  pursuant  to Section  3.01,  it shall  notify the Trustee in
writing of the  Redemption  Date and the  principal  amount of  Securities to be
redeemed  plus  interest  accrued  and  premium  due  thereon,  if  any,  to the
Redemption Date.

                  The  Company  shall  give  each  notice  provided  for in this
Section 3.02 in an Officers'  Certificate  at least five days before mailing the
notice to Holders referred to in Section 3.01.




<PAGE>

                                       30

                  SECTION 3.03. Selection of Securities to Be Redeemed.  If less
than all of the  Securities  are to be redeemed at any time,  the Trustee  shall
select the Securities to be redeemed in compliance with the  requirements of the
principal  national  securities  exchange,  if any, on which the  Securities are
listed or, if the Securities are not listed on a national  securities  exchange,
on a pro rata basis,  by lot or by such other  method as the Trustee in its sole
discretion  shall  deem  fair  and  appropriate;   provided,  however,  that  no
Securities of $1,000 in principal amount or less shall be redeemed in part.

                  The  Trustee  shall  make the  selection  from the  Securities
outstanding   and  not   previously   called  for   redemption.   Securities  in
denominations  of $1,000 in principal  amount may only be redeemed in whole. The
Trustee may select for redemption  portions (equal to $1,000 in principal amount
or any integral multiple thereof) of Securities that have  denominations  larger
than $1,000 in principal  amount.  Provisions  of this  Indenture  that apply to
Securities called for redemption also apply to portions of Securities called for
redemption.  The Trustee shall notify the Company and the Registrar  promptly in
writing of the Securities or portions of Securities to be called for redemption.

                  SECTION  3.04.  Notice  of  Redemption.  With  respect  to any
redemption of Securities pursuant to Section 3.01, at least 30 days but not more
than 60 days  before a  Redemption  Date,  the  Company  shall  mail a notice of
redemption  by  first  class  mail to each  Holder  whose  Securities  are to be
redeemed.

                  The notice shall  identify the  Securities  to be redeemed and
shall state:

                  (a) the Redemption Date;

                  (b) the Redemption Price;

                  (c) the name and address of the Paying Agent;

                  (d) that Securities called for redemption must be surrendered
         to the Paying Agent in order to collect the Redemption Price;

                  (e) that, unless the Company defaults in making the redemption
         payment,  interest on Securities called for redemption ceases to accrue
         on and after the Redemption  Date and the only  remaining  right of the
         Holders is to  receive  payment of the  Redemption  Price plus  accrued
         interest to the Redemption Date upon surrender of the Securities to the
         Paying Agent;




<PAGE>

                                       31

                  (f) that,  if any  Security  is being  redeemed  in part,  the
         portion of the principal amount (equal to $1,000 in principal amount or
         any  integral  multiple  thereof) of such  Security to be redeemed  and
         that,  on and  after  the  Redemption  Date,  upon  surrender  of  such
         Security, a new Security or Securities in principal amount equal to the
         unredeemed portion thereof will be reissued; and

                  (g) that, if any Security  contains a CUSIP number as provided
         in Section 2.12, no  representation is being made as to the correctness
         of the CUSIP number either as printed on the Securities or as contained
         in the notice of redemption and that reliance may be placed only on the
         other identification numbers printed on the Securities.

                  At the Company's  request (which request may be revoked by the
Company at any time prior to the time at which the Trustee shall have given such
notice to the Holders), made in writing to the Trustee at least five days before
mailing the notice to the Holders  referred to in this Section 3.04, the Trustee
shall  give such  notice of  redemption  in the name and at the  expense  of the
Company.  If, however, the Company gives such notice to the Holders, the Company
shall concurrently deliver to the Trustee an Officers'  Certificate stating that
such notice has been given.

                  SECTION 3.05.  Effect of Notice of Redemption.  Once notice of
redemption is mailed, Securities called for redemption become due and payable on
the relevant  Redemption Date and at the Redemption Price. Upon surrender of any
Securities to the Paying Agent,  such Securities shall be paid at the Redemption
Price, plus accrued interest, if any, to the Redemption Date.

                  Notice of redemption  shall be deemed to be given when mailed,
whether or not the Holder  receives  the notice.  In any event,  failure to give
such  notice,  or any  defect  therein,  shall not affect  the  validity  of the
proceedings for the redemption of Securities held by Holders to whom such notice
was properly given.

                  SECTION 3.06.  Deposit of Redemption Price. On or prior to any
Redemption  Date,  the Company  shall  deposit with the Paying Agent (or, if the
Company is acting as its own Paying Agent,  shall segregate and hold in trust as
provided in Section 2.04) money  sufficient to pay the  Redemption  Price of and
accrued  interest  on all  Securities  to be  redeemed  on that date  other than
Securities or portions thereof called for redemption on that date that have been
delivered by the Company to the Trustee for cancellation.

                  SECTION 3.07.  Payment of Securities Called for Redemption. If
notice of redemption has been given in the manner provided above, the Securities
or


<PAGE>

                                       32

portion of Securities  specified in such notice to be redeemed  shall become due
and payable on the  Redemption  Date at the  Redemption  Price  stated  therein,
together with accrued  interest to such  Redemption  Date, and on and after such
date (unless the Company shall default in the payment of such  Securities at the
Redemption  Price and accrued interest to the Redemption Date, in which case the
principal,  until paid, shall bear interest from the Redemption Date at the rate
prescribed in the  Securities),  such Securities shall cease to accrue interest.
Upon  surrender of any Security for  redemption in  accordance  with a notice of
redemption,  such  Security  shall be paid and  redeemed  by the  Company at the
Redemption  Price,  together with accrued  interest,  if any, to the  Redemption
Date; provided,  however, that installments of interest whose Stated Maturity is
on or prior to the Redemption Date shall be payable to the Holders registered as
such at the close of business on the relevant Regular Record Date.

                  SECTION 3.08.  Securities  Redeemed in Part. Upon surrender of
any Security that is redeemed in part, the Company shall execute and the Trustee
shall  authenticate  and deliver to the Holder a new Security equal in principal
amount to the unredeemed portion of such surrendered Security.


                                  ARTICLE FOUR

                                    COVENANTS

                  SECTION 4.01. Payment of Securities. The Company shall pay the
principal of,  premium,  if any, and interest on the Securities on the dates and
in the manner provided in the Securities and this  Indenture.  An installment of
principal, premium, if any, or interest shall be considered paid on the date due
if the Trustee or Paying  Agent (other than the  Company,  a  Subsidiary  of the
Company,  or any  Affiliate of any of them) holds on that date money  designated
for and sufficient to pay the  installment.  If the Company or any Subsidiary of
the  Company  or  any  Affiliate  of any of  them,  acts  as  Paying  Agent,  an
installment of principal,  premium, if any, or interest shall be considered paid
on the due date if the entity acting as Paying Agent complies with Section 2.04.
As provided in Section 6.09,  upon any  bankruptcy or  reorganization  procedure
relative  to the  Company,  the  Trustee  shall  serve as the  Paying  Agent and
conversion agent, if any, for the Securities.

                  The Company shall pay interest on overdue principal,  premium,
if any, and interest on overdue installments of interest,  to the extent lawful,
at the rate per annum specified in the Securities.




<PAGE>

                                       33

                  SECTION  4.02.  Maintenance  of Office or Agency.  The Company
will  maintain  an  office  or agency  (which  may be an office of the  Trustee,
Registrar or co-registrar or any Affiliate of any of them) where  Securities may
be surrendered for  registration of transfer or exchange or for presentation for
payment  and where  notices and demands to or upon the Company in respect of the
Securities  and this  Indenture  may be served.  The  Company  will give  prompt
written  notice to the Trustee of the location,  and any change in the location,
of such office or agency.  If at any time the Company shall fail to maintain any
such  required  office or agency or shall fail to furnish the  Trustee  with the
address thereof, such presentations, surrenders, notices and demands may be made
or served at the address of the Trustee set forth in Section 11.02.

                  The Company may also from time to time  designate  one or more
other offices or agencies  where the  Securities may be presented or surrendered
for  any  or  all  such  purposes  and  may  from  time  to  time  rescind  such
designations.  The Company will give prompt written notice to the Trustee of any
such  designation  or  rescission  and of any change in the location of any such
other office or agency.

                  The Company hereby  initially  designates the Corporate  Trust
Office of the  Trustee,  located in the  Borough of  Manhattan,  the City of New
York, as such office of the Company in accordance with Section 2.03.

                  SECTION 4.03. Limitation on Indebtedness. (a) The Company will
not,  and will not  permit  any of its  Restricted  Subsidiaries  to,  Incur any
Indebtedness  (other than the Securities and Indebtedness  existing on the Issue
Date);  provided,  however,  that the Company may Incur  Indebtedness  if, after
giving  effect  to the  Incurrence  of such  Indebtedness  and the  receipt  and
application of the proceeds therefrom, the Indebtedness to EBITDA Ratio would be
greater than zero and less than 5:1.

                  Notwithstanding the foregoing,  the Company and any Restricted
Subsidiary (except as specified below) may Incur each and all of the following:

     (i)  Indebtedness  of the Company  outstanding  at any time in an aggregate
principal  amount not to exceed  $125,000,000,  less any amount of  Indebtedness
Incurred  pursuant to this clause (i) and  permanently  repaid as provided under
Section 4.10;

     (ii)  Indebtedness  (A)  to  the  Company  evidenced  by an  unsubordinated
promissory note or (B) to any of its Restricted Subsidiaries; provided, however,
that any event which results in any such Restricted  Subsidiary  ceasing to be a
Restricted Subsidiary or any subsequent transfer of such Indebtedness (other



<PAGE>

                                       34

than to the Company or another  Restricted  Subsidiary) shall be deemed, in each
case, to constitute  an  Incurrence of such  Indebtedness  not permitted by this
clause (ii);

     (iii) Indebtedness issued in exchange for, or the net proceeds of which are
used  to  refinance  or  refund,  then  outstanding  Indebtedness,   other  than
Indebtedness  Incurred  under  clause  (i),  (ii),  (v),  (vi) or (viii) of this
paragraph, and any refinancings thereof in an amount not to exceed the amount so
refinanced or refunded (plus  premiums,  accrued  interest,  fees and expenses);
provided, however, that Indebtedness the proceeds of which are used to refinance
or  refund  the  Securities  or  Indebtedness   that  is  pari  passu  with,  or
subordinated  in right of payment  to, the  Securities  shall only be  permitted
under this clause (iii) if (A) in case the  Securities are refinanced in part or
the  Indebtedness to be refinanced is pari passu with the  Securities,  such new
Indebtedness,  by its  terms or by the  terms  of any  agreement  or  instrument
pursuant to which such new  Indebtedness is outstanding,  is expressly made pari
passu with, or subordinate in right of payment to, the remaining Securities, (B)
in case the Indebtedness to be refinanced is subordinated in right of payment to
the  Securities,  such new  Indebtedness,  by its  terms or by the  terms of any
agreement or instrument  pursuant to which such new Indebtedness is outstanding,
is expressly made  subordinate in right of payment to the Securities at least to
the  extent  that the  Indebtedness  to be  refinanced  is  subordinated  to the
Securities  and  (C)  such  new  Indebtedness,  determined  as of  the  date  of
Incurrence  of such new  Indebtedness,  does  not  mature  prior  to the  Stated
Maturity of the Indebtedness to be refinanced or refunded,  and the Average Life
of such new Indebtedness is at least equal to the remaining  Average Life of the
Indebtedness to be refinanced or refunded; provided further, however, that in no
event may Indebtedness of the Company be refinanced by means of any Indebtedness
of any Restricted Subsidiary of the Company pursuant to this clause (iii);

     (iv)  Indebtedness  (A) in respect of  performance,  surety or appeal bonds
provided in the ordinary course of business,  (B) under Currency  Agreements and
Interest  Rate  Agreements;  provided,  however,  that  such  agreements  do not
increase the Indebtedness of the obligor outstanding at any time other than as a
result of fluctuations in foreign  currency  exchange rates or interest rates or
by reason of fees,  indemnities and  compensation  payable  thereunder;  and (C)
arising from agreements  providing for  indemnification,  adjustment of purchase
price or similar  obligations,  or from Guarantees or letters of credit,  surety
bonds or performance bonds securing any obligations of the Company or any of the
Restricted Subsidiaries pursuant to such agreements, in any case



<PAGE>

                                       35

Incurred  in  connection  with  the  disposition  of  any  business,  assets  or
Restricted  Subsidiary of the Company  (other than  Guarantees  of  Indebtedness
Incurred by any Person acquiring all or any portion of such business,  assets or
Restricted  Subsidiary  of  the  Company  for  the  purpose  of  financing  such
acquisition),  in a principal  amount not to exceed the gross proceeds  actually
received by the Company or any  Restricted  Subsidiary in  connection  with such
disposition;

     (v) Indebtedness of the Company not to exceed, at any one time outstanding,
two times the Net Cash  Proceeds  received by the Company from and after October
23, 1995, from the issuance and sale of its Capital Stock (other than Redeemable
Stock and  Preferred  Stock that provides for the payment of dividends in cash),
provided,  however,  that such  Indebtedness  (x) does not  mature  prior to the
Stated  Maturity  of the  Securities  and has an Average  Life  longer  than the
Securities and (y) is pari passu with or subordinated to the Securities;

     (vi)  Indebtedness of any Restricted  Subsidiary  Incurred  pursuant to any
credit agreement of such Restricted  Subsidiary in effect on the Issue Date (and
refinancings  thereof),  up to the amount of the  commitment  under such  credit
agreement on the Issue Date;

     (vii)  Indebtedness  to the extent  such  Indebtedness  is secured by Liens
which are purchase money or other Liens upon equipment or inventory  acquired or
held by the Company or any of its Restricted  Subsidiaries  taken or obtained by
(A) the seller or lessor of such  equipment or inventory to secure all or a part
of the  purchase  price or lease  payments  therefor or (B) the person who makes
advances or incurs obligations, thereby giving value to the Company to enable it
to purchase or acquire  rights in such  equipment  or  inventory,  to secure the
repayment of all or a part of the advances so made or  obligations  so incurred;
provided,  however,  that such Liens do not extend to or cover any  property  or
assets of the Company or any Restricted  Subsidiary  other than the equipment or
inventory acquired;

     (viii) Indebtedness of any Restricted  Subsidiary not to exceed, at any one
time outstanding,  80% of the accounts receivable net of reserves and allowances
for doubtful  accounts,  determined in accordance  with GAAP, of such Restricted
Subsidiary  and its Restricted  Subsidiaries  (without  duplication);  provided,
however,  that such  Indebtedness is not Guaranteed by the Company or any of its
Restricted Subsidiaries; and




<PAGE>

                                       36

     (ix)  Indebtedness of the Company,  to the extent the proceeds  thereof are
immediately used to purchase  Convertible  Notes,  Old Senior Notes,  March 1997
Notes,  August  1997  Equipment  Notes  or  Securities  tendered  in an Offer to
Purchase made as a result of a Change of Control.

                  (b) For  purposes  of  determining  any  particular  amount of
Indebtedness  under this Section 4.03,  Guarantees,  Liens or  obligations  with
respect to letters of credit supporting  Indebtedness  otherwise included in the
determination of such particular  amount shall not be included.  For purposes of
determining  compliance  with this  Section  4.03,  in the event that an item of
Indebtedness  meets the  criteria of more than one of the types of  Indebtedness
described in the above  clauses,  the  Company,  in its sole  discretion,  shall
classify  such item of  Indebtedness  and only be required to include the amount
and type of such Indebtedness in one of such clauses.

                  (c) The Company will not,  and will not permit any  Restricted
Subsidiary  to,  Incur  any  Guarantee  of  Indebtedness  of  any   Unrestricted
Subsidiary.

                  SECTION 4.04. Limitation on Senior Subordinated  Indebtedness.
The Company will not (i) Incur any Indebtedness, other than the Securities, that
is expressly made  subordinated  in right of payment to any Senior  Indebtedness
unless  such  Indebtedness,  by its terms and by the terms of any  agreement  or
instrument  pursuant to which such Indebtedness is outstanding is expressly made
pari passu with, or subordinate in right of payment to, the Securities  pursuant
to provisions substantially similar to those contained in Article Ten; provided,
however,  that the foregoing  limitation shall not apply to distinctions between
categories  of  Senior  Indebtedness  that  exist  by  reason  of any  Liens  or
Guarantees arising or created in respect of some but not all Senior Indebtedness
or (ii) Incur any  Indebtedness  secured by a Lien if such  Indebtedness  is not
Senior Indebtedness,  unless contemporaneously  therewith effective provision is
made to secure the Securities equally and ratably with such secured Indebtedness
for so long as such secured Indebtedness is secured by a Lien.

                  SECTION 4.05.  Limitation on Restricted Payments.  The Company
will  not,  and will not  permit  any  Restricted  Subsidiary  to,  directly  or
indirectly,  (i)  declare or pay any  dividend or make any  distribution  on its
Capital Stock (other than dividends or distributions payable solely in shares of
its or such Restricted  Subsidiary's Capital Stock (other than Redeemable Stock)
held by such  holders or in options,  warrants or other  rights to acquire  such
shares of Capital  Stock) other than such  Capital  Stock held by the Company or
any of its  Restricted  Subsidiaries  (and  other  than  pro rata  dividends  or
distributions  on Common Stock of  Restricted  Subsidiaries);  (ii)  repurchase,
redeem, retire or otherwise acquire for value any shares of Capital Stock of the
Company (including  options,  warrants or other rights to acquire such shares of
Capital Stock)


<PAGE>

                                       37

held by Persons  other  than any Wholly  Owned  Restricted  Subsidiaries  of the
Company; (iii) make any voluntary or optional principal payment, or voluntary or
optional redemption,  repurchase, defeasance, or other acquisition or retirement
for value,  of  Indebtedness  of the Company  that is  subordinated  in right of
payment to the Securities;  or (iv) make any Investment,  other than a Permitted
Investment,  in any Person  (such  payments or any other  actions  described  in
clauses (i) through (iv) being  collectively  "Restricted  Payments") if, at the
time of, and after giving  effect to, the  proposed  Restricted  Payment:  (A) a
Default or Event of Default  shall have occurred and be  continuing,  (B) except
with  respect to any  Investment  (other than an  Investment  consisting  of the
designation  of a Restricted  Subsidiary  as an  Unrestricted  Subsidiary),  the
Company could not Incur at least $1.00 of Indebtedness under the first paragraph
of Section 4.03 or (C) the aggregate amount expended for all Restricted Payments
(the amount so expended,  if other than in cash,  to be determined in good faith
by the Board of Directors, whose determination shall be conclusive and evidenced
by a Board Resolution) after the Deemed Closing Date shall exceed the sum of (1)
50% of the aggregate amount of the Adjusted  Consolidated Net Income (or, if the
Adjusted  Consolidated  Net  Income  is a  loss,  minus  100%  of  such  amount)
(determined  by  excluding  income  resulting  from  transfers  of assets by the
Company or a Restricted  Subsidiary to an Unrestricted  Subsidiary) accrued on a
cumulative basis during the period (taken as one accounting period) beginning on
the first day of the fiscal  quarter  immediately  following the Deemed  Closing
Date  and  ending  on the  last day of the last  fiscal  quarter  preceding  the
Transaction Date for which reports have been filed pursuant to Section 4.17 plus
(2) the  aggregate  Net Cash  Proceeds  received by the Company after the Deemed
Closing  Date from the  issuance  and sale  permitted  by this  Indenture of its
Capital Stock (other than Redeemable  Stock) to a Person who is not a Subsidiary
of the Company,  or from the issuance to a Person who is not a Subsidiary of the
Company of any options, warrants or other rights to acquire Capital Stock of the
Company (in each case,  exclusive of any  convertible  Indebtedness,  Redeemable
Stock or any options, warrants or other rights that are redeemable at the option
of the Holder,  or are required to be redeemed,  prior to the Stated Maturity of
the March 1997 Senior Notes and the Securities), plus (3) an amount equal to the
net reduction in Investments (other than reductions in Permitted Investments and
other than  reductions in Investments  made pursuant to clauses (vi) or (vii) of
the second  paragraph of this Section 4.05 in any Person resulting from payments
of interest on  Indebtedness,  dividends,  repayments  of loans or advances,  or
other  transfers  of  assets,  in each  case to the  Company  or any  Restricted
Subsidiary (except to the extent any such payment is included in the calculation
of Adjusted  Consolidated Net Income),  or from  redesignations  of Unrestricted
Subsidiaries as Restricted  Subsidiaries (valued in each case as provided in the
definition of "Investments"), not to exceed the amount of Investments previously
made by the Company and its Restricted Subsidiaries in such Person.



<PAGE>

                                       38


                  The foregoing provision shall not be violated by reason of:

     (i)  the  payment  of any  dividend  within  60  days  after  the  date  of
declaration  thereof if, at said date of declaration,  such payment would comply
with the foregoing paragraph;

     (ii)  the  redemption,  repurchase,  defeasance  or  other  acquisition  or
retirement for value of Indebtedness that is subordinated in right of payment to
the Securities, including premium, if any, and accrued and unpaid interest, with
the proceeds of, or in exchange for, Indebtedness Incurred under clause (iii) of
the second paragraph of Section 4.03;

     (iii) the repurchase,  redemption or other  acquisition of Capital Stock of
the Company (or options, warrants or other rights to acquire such Capital Stock)
in exchange for, or out of the proceeds of a  substantially  concurrent sale of,
shares of Capital  Stock or options,  warrants or other rights to purchase  such
Capital Stock (in each case other than Redeemable Stock) of the Company;

     (iv) the making of any other  Restricted  Payment made by exchange  for, or
out of the proceeds of, a substantially concurrent sale of shares of the Capital
Stock or options,  warrants or other rights to acquire  such  Capital  Stock (in
each case other than Redeemable Stock) of the Company;

     (v) payments or distributions, in the nature of satisfaction of dissenters'
rights, pursuant to or in connection with a consolidation, merger or transfer of
assets  that  complies  with the  provisions  of this  Indenture  applicable  to
mergers,  consolidations  and  transfers  of  all  or  substantially  all of the
property and assets of the Company;

     (vi) Investments, not to exceed $15,000,000 at any one time outstanding;

     (vii)  Investments,  not to exceed $15,000,000 at any one time outstanding,
in   entities,   substantially   all  of  the   assets  of  which   consist   of
Telecommunications Assets;

     (viii) cash payments in lieu of the issuance of fractional shares of Common
Stock upon conversion  (including mandatory conversion) of the Convertible Notes
as provided for in the Convertible Notes Indenture;

     (ix) cash payments in lieu of the issuance of  fractional  shares of Common
Stock of the Company upon conversion of any class of Preferred Stock of the



<PAGE>

                                       39

Company;  provided,  however,  that this  exception  shall not be available with
respect  to more than two such  conversions  with  respect  to any such class of
Preferred Stock by any given Affiliate of the Company; and

     (x)   Investments  in  entities  that  directly  (or   indirectly   through
subsidiaries) own licenses granted by the FCC or any other  governmental  entity
with authority to grant telecommunications licenses; provided, however, that, in
each case the Company or a Restricted  Subsidiary  shall,  at the time of making
such  Investment,  have an active role in the  management  or  operation of such
entity and in the  provision  of  telecommunications  services  by such  entity;
provided,  however,  that,  except in the case of clauses  (i) and (iii) of this
paragraph,  no Default or Event of Default shall have occurred and be continuing
or occur as a  consequence  of the actions or  payments  set forth  herein.  Any
Investments made other than in cash shall be valued, in good faith, by the Board
of  Directors.  Any  Investment  made  pursuant  to clause (vi) or (vii) of this
paragraph  shall be deemed to be no longer  outstanding  (and repaid in full) if
and when the  Person in which  such  Investment  is made  becomes  a  Restricted
Subsidiary of the Company.

                  Each Restricted  Payment  permitted  pursuant to the preceding
paragraph  (other  than  the  Restricted  Payment  referred  to in  clause  (ii)
thereof),  and the Net Cash Proceeds from any issuance and sale of Capital Stock
referred to in clauses  (iii) or (iv) shall be included in  calculating  whether
the  conditions  of clause (C) of the first  paragraph of this Section 4.05 have
been met with respect to any subsequent  Restricted  Payments.  In the event the
proceeds  of an  issuance  of  Capital  Stock  of the  Company  are used for the
redemption,  repurchase or other  acquisition of the Securities or  Indebtedness
that is pari  passu  with the  Securities  then the Net  Cash  Proceeds  of such
issuance shall be included in clause (C) of the first  paragraph of this Section
4.05  only to the  extent  such  proceeds  are not  used  for  such  redemption,
repurchase or other acquisition of Indebtedness.

                  SECTION  4.06.   Limitation  on  Dividend  and  Other  Payment
Restrictions Affecting Restricted  Subsidiaries.  The Company will not, and will
not permit any Restricted  Subsidiary to, create or otherwise cause or suffer to
exist or become effective any consensual  encumbrance or restriction of any kind
on the ability of any Restricted Subsidiary to:

     (i) pay dividends or make any other  distributions  permitted by applicable
law on any Capital Stock of such Restricted  Subsidiary  owned by the Company or
any other Restricted Subsidiary;




<PAGE>

                                       40

     (ii) pay any  Indebtedness  owed to the  Company  or any  other  Restricted
Subsidiary  that  owns,  directly  or  indirectly,  any  Capital  Stock  of such
Restricted Subsidiary;

     (iii)  make  loans or  advances  to the  Company  or any  other  Restricted
Subsidiary  that  owns,  directly  or  indirectly,  any  Capital  Stock  of such
Restricted Subsidiary; or

     (iv)  transfer  any of its  property  or assets to the Company or any other
Restricted  Subsidiary that owns,  directly or indirectly,  any Capital Stock of
such Restricted Subsidiary.

                  The foregoing  provisions  shall not prohibit any encumbrances
or restrictions:

     (i) existing on the Issue Date in this Indenture or any other  agreement in
effect  on the  Issue  Date,  and  any  extensions,  refinancings,  renewals  or
replacements of such agreements;  provided,  however,  that the encumbrances and
restrictions in any such extensions,  refinancings, renewals or replacements are
no less favorable in any material respect to the Holders than those encumbrances
or restrictions that are then in effect and that are being extended, refinanced,
renewed or replaced;

     (ii) existing under or by reason of applicable law;

     (iii) existing with respect to any Person or the property or assets of such
Person acquired by the Company or any Restricted Subsidiary, at the time of such
acquisition and not incurred in  contemplation  thereof,  which  encumbrances or
restrictions  are not  applicable to any Person or the property or assets of any
Person  other  than such  Person  or the  property  or assets of such  Person so
acquired;

     (iv) in the case of clause  (iv) of the  first  paragraph  of this  Section
4.06,  (A) that  restrict in a customary  manner the  subletting,  assignment or
transfer  of any  property  or asset  that is a lease,  license,  conveyance  or
contract or similar  property or asset,  (B)  existing by virtue of any transfer
of,  agreement  to  transfer,  option or right with  respect to, or Lien on, any
property or assets of the Company or any  Restricted  Subsidiary  not  otherwise
prohibited by this Indenture or (C) arising or agreed to in the ordinary  course
of business, not relating to any Indebtedness,  and that do not, individually or
in the aggregate, detract from the value of property or assets of the Company or
any Restricted



<PAGE>

                                       41

Subsidiary in any manner  material to the Company or any Restricted  Subsidiary;
or

     (v) with  respect to a  Restricted  Subsidiary  and imposed  pursuant to an
agreement  that has been  entered  into  for the sale or  disposition  of all or
substantially  all of the  Capital  Stock of, or  property  and assets of,  such
Restricted Subsidiary.

Nothing  contained  in this  Section  4.06  shall  prevent  the  Company  or any
Restricted  Subsidiary  from (i)  restricting  the sale or other  disposition of
property or assets of the  Company or any of its  Restricted  Subsidiaries  that
secure Indebtedness of the Company or any of its Restricted Subsidiaries or (ii)
creating,  incurring,  assuming  or  suffering  to  exist  any  Liens  otherwise
permitted  under  Section  4.09 of the March 1997 Senior  Notes  Indenture as in
effect on the Deemed Closing Date.

                  SECTION  4.07.  Limitation on the Issuance and Sale of Capital
Stock of Restricted Subsidiaries. The Company will not sell, and will not permit
any Restricted Subsidiary,  directly or indirectly,  to issue or sell any shares
of Capital  Stock of a Restricted  Subsidiary  (including  options,  warrants or
other rights to purchase shares of such Capital Stock) except:

     (i) to the Company or a Wholly Owned Restricted Subsidiary;

     (ii) issuances or sales to foreign  nationals of shares of Capital Stock of
foreign Restricted Subsidiaries, to the extent required by applicable law;

     (iii) if,  immediately  after giving effect to such issuance or sale,  such
Restricted Subsidiary would no longer constitute a Restricted Subsidiary; or

     (iv) issuances or sales of Common Stock of Restricted  Subsidiaries,  other
than the  Telecommunications  Subsidiaries,  if within  six  months of each such
issuance or sale, the Company or such  Restricted  Subsidiary  applies an amount
not less than the Net Cash Proceeds  thereof (if any) in accordance  with clause
(A) or (B) of the first paragraph of Section 4.10.

                  SECTION  4.08.   Limitation  on  Issuances  of  Guarantees  by
Restricted Subsidiaries.  The Company will not permit any Restricted Subsidiary,
directly  or  indirectly,   to  Guarantee  any   Indebtedness   of  the  Company
("Guaranteed    Indebtedness"),    unless   (i)   such   Restricted   Subsidiary
simultaneously  executes and delivers a supplemental indenture to this Indenture
providing  for  a  Guarantee  (a  "Subsidiary  Guarantee")  of  payment  of  the
Securities by such Restricted Subsidiary and



<PAGE>

                                       42

(ii) such  Restricted  Subsidiary  waives and will not in any manner  whatsoever
claim  or take the  benefit  or  advantage  of,  any  rights  of  reimbursement,
indemnity or  subrogation  or any other rights  against the Company or any other
Restricted  Subsidiary as a result of any payment by such Restricted  Subsidiary
under its Subsidiary Guarantee; provided, however, that this paragraph shall not
be applicable to any Guarantee of any Restricted  Subsidiary that (x) existed at
the time such Person became a Restricted  Subsidiary and (y) was not Incurred in
connection  with,  or in  contemplation  of, such Person  becoming a  Restricted
Subsidiary. If the Guaranteed Indebtedness is (A) pari passu with the Securities
then the Guarantee of such Guaranteed  Indebtedness shall be pari passu with, or
subordinated to, the Subsidiary  Guarantee or (B) subordinated to the Securities
then the Guarantee of such Guaranteed  Indebtedness shall be subordinated to the
Subsidiary Guarantee at least to the extent that the Guaranteed  Indebtedness is
subordinated to the Securities.

                  Notwithstanding the foregoing,  any Subsidiary  Guarantee by a
Restricted  Subsidiary shall provide by its terms that it shall be automatically
and  unconditionally  released  and  discharged  upon (i) any sale,  exchange or
transfer,  to any Person not an Affiliate of the Company of all of the Company's
and each Restricted  Subsidiary's  Capital Stock in, or all or substantially all
the assets of, such Restricted  Subsidiary (which sale,  exchange or transfer is
not  prohibited  by this  Indenture)  or (ii) the  release or  discharge  of the
Guarantee which resulted in the creation of such Subsidiary Guarantee,  except a
discharge or release by or as a result of payment under such Guarantee.

                  SECTION 4.09. Limitation on Transactions with Shareholders and
Affiliates.  The Company will not, and will not permit any Restricted Subsidiary
to,  directly  or  indirectly  enter  into,  renew  or  extend  any  transaction
(including,  without  limitation,  the  purchase,  sale,  lease or  exchange  of
property or assets,  or the  rendering of any  service)  with any holder (or any
Affiliate  of such  holder) of 5% or more of any class of  Capital  Stock of the
Company  or with any  Affiliate  of the  Company or any  Restricted  Subsidiary,
except upon fair and  reasonable  terms no less favorable to the Company or such
Restricted  Subsidiary than could be obtained,  at the time of such  transaction
or, if such transaction is pursuant to a written  agreement,  at the time of the
execution of the  agreement  providing  therefor,  in a comparable  arm's-length
transaction with a Person that is not such a holder or an Affiliate.

                  The foregoing  limitation does not limit,  and shall not apply
to (i) transactions (A) approved by a majority of the  disinterested  members of
the Board of Directors  or (B) for which the Company or a Restricted  Subsidiary
delivers to the Trustee a written opinion of a nationally  recognized investment
banking  firm  stating  that  the  transaction  is fair to the  Company  or such
Restricted Subsidiary from a



<PAGE>

                                       43

financial point of view; (ii) any transaction solely between the Company and any
of its Wholly  Owned  Restricted  Subsidiaries  or solely  between  Wholly Owned
Restricted  Subsidiaries;  (iii) the payment of reasonable  fees to directors of
the Company who are not  employees  of the  Company;  (iv) any payments or other
transactions  pursuant to any tax-sharing  agreement between the Company and any
other  Person with which the  Company  files a  consolidated  tax return or with
which the Company is part of a consolidated  group for tax purposes;  or (v) any
Restricted Payments not prohibited by the provisions of Section 4.05 (other than
pursuant to clause (iv) of the  definition of "Permitted  Investment"  or clause
(vi) of the second  paragraph of Section 4.05).  Notwithstanding  the foregoing,
any  transaction  covered by the first  paragraph  of this  Section 4.09 and not
covered by clauses (ii) through (iv) of this paragraph,  the aggregate amount of
which  exceeds  $250,000 in value,  must be approved or determined to be fair in
the manner provided for in clause (i)(A) or (B) above.

                  SECTION 4.10. Limitation on Asset Sales. The Company will not,
and will not permit any  Restricted  Subsidiary  to,  consummate any Asset Sale,
unless  (i)  the  consideration  received  by the  Company  or  such  Restricted
Subsidiary  is at least  equal to the fair  market  value of the assets  sold or
disposed of and (ii) at least 85% of the consideration received consists of cash
or Temporary Cash Investments.  In the event and to the extent that the Net Cash
Proceeds received by the Company or its Restricted Subsidiaries from one or more
Asset Sales  occurring  on or after the Deemed  Closing Date in any period of 12
consecutive  months  exceed 10% of Adjusted  Consolidated  Net  Tangible  Assets
(determined as of the date closest to the  commencement of such 12- month period
for which a consolidated  balance sheet of the Company and its  Subsidiaries has
been  prepared),  then the Company shall or shall cause the relevant  Restricted
Subsidiary to (i) within six months after the date Net Cash Proceeds so received
exceed 10% of  Adjusted  Consolidated  Net  Tangible  Assets (A) apply an amount
equal to such  excess Net Cash  Proceeds  to  permanently  repay  unsubordinated
Indebtedness of the Company,  or Indebtedness of any Restricted  Subsidiary,  in
each case  owing to a Person  other than the  Company  or any of its  Restricted
Subsidiaries  or (B)  invest  an equal  amount,  or the  amount  not so  applied
pursuant to clause (A) (or enter into a definitive  agreement  committing  to so
invest  within six months  after the date of such  agreement),  in  property  or
assets  of a  nature  or type or that are used in a  business  (or in a  company
having  property  and  assets of a nature or type,  or  engaged  in a  business)
similar or related to the nature or type of the  property  and assets of, or the
business of, the Company and its Restricted Subsidiaries existing on the date of
such  investment (as  determined in good faith by the Board of Directors,  whose
determination  shall be conclusive and evidenced by a Board Resolution) and (ii)
apply (no later than the end of the six-month  period referred to in clause (i))
such excess Net Cash Proceeds (to the extent not applied pursuant to clause (i))
as provided in the following  paragraph of this Section 4.10. The amount of such
excess Net Cash Proceeds required to be



<PAGE>

                                       44

applied (or to be committed to be applied)  during such six-month  period as set
forth in clause (i) of the preceding  sentence and not applied as so required by
the end of such period shall constitute "Excess Proceeds."

                  If, as of the first day of any calendar  month,  the aggregate
amount  of Excess  Proceeds  not  theretofore  subject  to an Offer to  Purchase
pursuant to this  Section  4.10 totals at least  $10,000,000,  the Company  must
commence,  not  later  than the 15th  Business  Day  after the first day of such
month,  and consummate an Offer to Purchase from the Holders on a pro rata basis
an aggregate principal amount of Securities equal to the Excess Proceeds on such
date,  at a  purchase  price  equal to 101% of the  Accumulated  Amount  of such
Securities on such date of purchase,  plus accrued and unpaid  interest (if any)
on such Accumulated Amount to the date of purchase;  provided,  however, that no
Offer  to  Purchase  shall be  required  to be  commenced  with  respect  to the
Securities until the Business Day following the payment date with respect to the
Offer to Purchase March 1997 Senior Notes, March 1997 Equipment Notes and August
1997 Equipment Notes and need not be commenced if the Excess Proceeds  remaining
after application to the March 1997 Senior Notes, March 1997 Equipment Notes and
August 1997  Equipment  Notes  purchased  in such Offer to  Purchase  applicable
thereto are less than $10,000,000; provided further, however, that no Securities
may be purchased under this Section 4.10 unless the Company shall have purchased
all March  1997  Senior  Notes,  March  1997  Equipment  Notes and  August  1997
Equipment Notes tendered pursuant to the Offer to Purchase applicable thereto.

                  SECTION  4.11.  Repurchase  of  Securities  upon a  Change  of
Control. The Company must commence, within 30 days of the occurrence of a Change
of Control,  and  consummate  an Offer to Purchase for all the  Securities  then
outstanding,  at a purchase price equal to 101% of the Accumulated Amount of the
Securities on the date of purchase, plus accrued and unpaid interest (if any) on
such  Accumulated  Amount to the date of  purchase.  Prior to the mailing of the
notice to Holders of Securities  commencing  such Offer to Purchase,  but in any
event within 30 days following any Change of Control,  the Company  covenants to
(i) repay in full all  indebtedness  of the  Company  that  would  prohibit  the
repurchase of the  Securities  pursuant to such Offer to Purchase or (ii) obtain
any requisite consents under instruments  governing any such indebtedness of the
Company to permit the  repurchase  of the  Securities.  The Company  shall first
comply with the covenant in the preceding  sentence  before it shall  repurchase
Securities pursuant to this Section 4.11.

                  The Company may not  repurchase  any  Securities (or any other
subordinated  obligations,  including the  Convertible  Notes)  pursuant to this
Section 4.11 until it has  repurchased  or caused WEC or WEC II, as the case may
be, to repurchase



<PAGE>

                                       45

all March  1997  Senior  Notes,  March  1997  Equipment  Notes and  August  1997
Equipment  Notes  tendered  pursuant to the Offer to Purchase  March 1997 Senior
Notes, March 1997 Equipment Notes and August 1997 Equipment Notes as a result of
such  Change of Control.  However,  if the Company is unable to repay all of its
Indebtedness  that would  prohibit  repurchase of the Securities or is unable to
obtain the  consents  of the  holders of  Indebtedness,  if any,  of the Company
outstanding  at the  time of a  Change  of  Control  whose  consent  would be so
required to permit the  repurchase of Securities or otherwise  fails to purchase
any  Securities  validly  tendered,  then the Company  will have  breached  such
covenant.  This breach will  constitute an Event of Default under this Indenture
if it continues  for a period of 30  consecutive  days after  written  notice is
given to the Company by the Trustee or the Holders of at least 25% in  aggregate
principal amount of the Securities outstanding.  In addition, the failure by the
Company to repurchase Securities at the conclusion of the Offer to Purchase will
constitute   an  Event  of  Default   without  any  waiting   period  or  notice
requirements.

                  SECTION 4.12. Existence.  Subject to Articles Four and Five of
this Indenture,  the Company will do or cause to be done all things necessary to
preserve and keep in full force and effect its  existence  and the  existence of
each  of  its  Restricted   Subsidiaries   in  accordance  with  the  respective
organizational  documents of the Company and each such Subsidiary and the rights
(whether pursuant to charter,  partnership  certificate,  agreement,  statute or
otherwise),  material  licenses  and  franchises  of the  Company  and each such
Subsidiary;  provided,  however,  that the  Company  shall  not be  required  to
preserve  any  such  right,  license  or  franchise,  or  the  existence  of any
Restricted  Subsidiary  (other  than  of the  Company),  if the  maintenance  or
preservation  thereof is no longer  desirable  in the conduct of the business of
the Company and its Restricted  Subsidiaries taken as a whole. In addition,  the
Company  agrees to take such actions,  within a reasonable  time after the Issue
Date  (and  in  any  event  prior  to any  proceeding  initiated  regarding  the
dissolution  of the Company),  as may be necessary to ensure that it shall be in
good standing under the laws of the jurisdiction of its incorporation.

                  SECTION 4.13.  Payment of Taxes and Other Claims.  The Company
will  pay or  discharge  and  shall  cause  each of its  Subsidiaries  to pay or
discharge,  or cause to be paid or  discharged,  before  the same  shall  become
delinquent (i) all material taxes,  assessments and governmental  charges levied
or  imposed  upon (a) the  Company  or any such  Subsidiary,  (b) the  income or
profits of any such Subsidiary which is a corporation or (c) the property of the
Company or any such  Subsidiary  and (ii) all material  lawful claims for labor,
materials  and  supplies  that,  if unpaid,  might by law become a lien upon the
property  of the Company or any such  Subsidiary;  provided,  however,  that the
Company  shall  not be  required  to pay or  discharge,  or  cause to be paid or
discharged, any such tax, assessment, charge or claim the amount, applicability



<PAGE>

                                       46

or validity of which is being contested in good faith by appropriate proceedings
and for which adequate reserves have been established.

                  SECTION 4.14.  Maintenance of Properties  and  Insurance.  The
Company will cause all properties  used or useful in the conduct of its business
or the business of any of its Restricted Subsidiaries, to be maintained and kept
in  reasonable  condition,  repair  and  working  order  and  supplied  with all
necessary  equipment and will cause to be made all necessary repairs,  renewals,
replacements,  betterments and improvements  thereof,  all as in the judgment of
the Company  may be  necessary  so that the  business  carried on in  connection
therewith may be properly and advantageously  conducted at all times;  provided,
however, that nothing in this Section 4.14 shall prevent the Company or any such
Subsidiary from  discontinuing the use,  operation or maintenance of any of such
properties or disposing of any of them, if such  discontinuance  or disposal is,
in the judgment of the Company,  desirable in the conduct of the business of the
Company or such Subsidiary.

                  The Company will  provide or cause to be provided,  for itself
and   its   Restricted    Subsidiaries,    insurance   (including    appropriate
self-insurance)  against loss or damage of the kinds customarily insured against
by corporations  similarly situated and owning like properties,  including,  but
not limited to, product liability insurance and public liability insurance, with
reputable insurers or with the government of the United States of America, or an
agency or instrumentality thereof, in such amounts, with such deductibles and by
such methods as shall be customary for  corporations  similarly  situated in the
industry in which the Company or such Restricted Subsidiary, as the case may be,
is then conducting business.

                  SECTION  4.15.  Notice  of  Defaults.  In the  event  that the
Company becomes aware of any Default or Event of Default, the Company,  promptly
after it becomes aware thereof, will give written notice thereof to the Trustee.

                  SECTION 4.16. Compliance  Certificates.  (a) The Company shall
deliver to the  Trustee,  within 90 days after the end of the  Company's  fiscal
year, an Officers'  Certificate  stating  whether or not the signers know of any
Default  or Event of  Default  that  occurred  during  such  fiscal  year.  Such
certificates shall contain a certification from the principal executive officer,
principal financial officer or principal  accounting officer of the Company that
a review has been  conducted of the activities of the Company and the Restricted
Subsidiaries  and the Company's  and the  Restricted  Subsidiaries'  performance
under this  Indenture  and that,  to the best  knowledge  of such  officer,  the
Company has complied with all conditions and covenants under this Indenture. For
purposes of this Section  4.16,  such  compliance  shall be  determined  without
regard to any period of grace or requirement of notice provided under this



<PAGE>

                                       47

Indenture.  If they  do  know  of  such a  Default  or  Event  of  Default,  the
certificate shall describe any such Default or Event of Default and its status.

                  (b)  The  Company  shall  (to the  extent  not  prohibited  by
applicable  accounting  rules) deliver to the Trustee,  within 90 days after the
end of its  fiscal  year,  a  certificate  signed by the  Company's  independent
certified  public  accountants  stating  (i) that their  audit  examination  has
included  a review of the terms of this  Indenture  and the  Securities  as they
relate to accounting matters, (ii) that they have read the most recent Officers'
Certificate  delivered to the Trustee  pursuant to paragraph (a) of this Section
4.16 and (iii) whether,  in connection  with their audit  examination,  anything
came to their  attention  that caused them to believe that the  Company,  as the
case may be, was not in compliance with any of the terms, covenants,  provisions
or conditions of Article Four and Section 5.01 of this Indenture as they pertain
to accounting  matters and, if any Default or Event of Default has come to their
attention,  specifying  the nature and period of  existence  thereof;  provided,
however,  that such independent certified public accountants shall not be liable
in respect of such statement by reason of any failure to obtain knowledge of any
such Default or Event of Default that would not be disclosed in the course of an
audit  examination  conducted in accordance  with  generally  accepted  auditing
standards in effect at the date of such examination.

                  (c) Within 90 days after the end of the Company's fiscal year,
the Company shall deliver to the Trustee a list of all Significant Subsidiaries.
The Trustee  shall have no duty with  respect to any such list except to keep it
on file and available for inspection by the Holders.

                  SECTION 4.17.  SEC Reports and Reports to Holders.  Whether or
not the Company is required to file reports with the SEC, if any  Securities are
outstanding,  the Company  shall file with the SEC,  all such  reports and other
information  as it would be required  to file with the SEC by Sections  13(a) or
15(d) under the  Exchange  Act.  The Company  shall  supply the Trustee and each
Holder of Securities or shall supply to the Trustee for  forwarding to each such
Holder,  without cost to the Trustee or such  Holder,  copies of such reports or
other information.

                  SECTION  4.18.  Waiver of Stay,  Extension or Usury Laws.  The
Company covenants (to the extent that it may lawfully do so) that it will not at
any time insist upon, or plead,  or in any manner  whatsoever  claim or take the
benefit or advantage of, any stay or extension law or any usury law or other law
that would prohibit or forgive the Company from paying all or any portion of the
principal of,  premium,  if any, or interest on the  Securities as  contemplated
herein,  wherever  enacted,  now or at any time hereafter in force,  or that may
affect the covenants or the  performance of this  Indenture;  and (to the extent
that it may lawfully do so) the



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                                       48

Company  hereby  expressly  waives all benefit or  advantage of any such law and
covenants  that it will not hinder,  delay or impede the  execution of any power
herein granted to the Trustee, but will suffer and permit the execution of every
such power as though no such law had been enacted.


                                  ARTICLE FIVE

                              SUCCESSOR CORPORATION

                  SECTION 5.01.  When Company May Merge,  Etc. The Company shall
not consolidate with, merge with or into, or sell,  convey,  transfer,  lease or
otherwise  dispose of all or substantially all of its property and assets (as an
entirety or  substantially an entirety in one transaction or a series of related
transactions)  to, any Person (other than a consolidation or merger with or into
a Wholly  Owned  Restricted  Subsidiary  with a positive  net  worth;  provided,
however,  that,  in  connection  with  any  such  merger  or  consolidation,  no
consideration  (other than Common Stock in the surviving Person, or the Company)
shall be issued or distributed to the stockholders of the Company) or permit any
Person to merge with or into the Company unless:

     (i) the Company  shall be the  continuing  Person,  or the Person (if other
than the  Company)  formed by such  consolidation  or into which the  Company is
merged or that  acquired or leased such property and assets of the Company shall
be a  corporation  organized and validly  existing  under the laws of the United
States of America or any jurisdiction  thereof and shall expressly  assume, by a
supplemental  indenture,  executed  and  delivered  to the  Trustee,  all of the
obligations of the Company on all of the Securities and under this Indenture;

     (ii)  immediately  after giving effect to such  transaction,  no Default or
Event of Default shall have occurred and be continuing;

     (iii)  immediately  after giving effect to such  transaction on a pro forma
basis,  the  Company  or  any  Person  becoming  the  successor  obligor  of the
Securities  shall have a  Consolidated  Net Worth  equal to or greater  than the
Consolidated Net Worth of the Company immediately prior to such transaction;

     (iv)  immediately  after giving effect to such  transaction  on a pro forma
basis  the  Company,  or  any  Person  becoming  the  successor  obligor  of the
Securities could Incur at least $1.00 of Indebtedness  under the first paragraph
of Section 4.03; and




<PAGE>

                                       49

     (v) the Company delivers to the Trustee an Officers' Certificate (attaching
the arithmetic computations to demonstrate compliance with clauses (iii) and, if
applicable,  (iv))  and  Opinion  of  Counsel,  in each case  stating  that such
consolidation,  merger or transfer and such supplemental indenture complies with
the provisions of this Section 5.01 and that all conditions  precedent  provided
for herein  relating to such  transaction  have been  complied  with;  provided,
however,  that  clauses  (iii) and (iv) above do not apply if, in the good faith
determination  of the Board of  Directors of the  Company,  whose  determination
shall  be  evidenced  by a  Board  Resolution,  the  principal  purpose  of such
transaction  is to change the state of  incorporation  of the Company;  provided
further,  however,  that  any  such  transaction  shall  not  have as one of its
purposes the evasion of the foregoing limitations.

                  SECTION 5.02. Successor Substituted. Upon any consolidation or
merger,  or any  sale,  conveyance,  transfer  or  other  disposition  of all or
substantially  all of the property and assets of the Company in accordance  with
Section  5.01  of  this   Indenture,   the  successor   Person  formed  by  such
consolidation  or into  which  the  Company  is merged  or to which  such  sale,
conveyance,  transfer  or other  disposition  is made shall  succeed  to, and be
substituted  for, and may exercise  every right and power of, the Company  under
this Indenture  with the same effect as if such successor  Person had been named
as the Company herein.


                                   ARTICLE SIX

                              DEFAULT AND REMEDIES

                  SECTION 6.01.  Events of Default.  An "Event of Default" shall
occur with respect to the Securities if:

                  (a) the Company  defaults in the payment of the  principal  of
         (or premium,  if any,  on) any  Security  when the same becomes due and
         payable,  upon  acceleration,  redemption or otherwise,  whether or not
         such payment is prohibited pursuant to the provisions of Article Ten;

                  (b) the  Company  defaults  in the  payment of interest on any
         Security  when the  same  becomes  due and  payable,  and such  default
         continues  for a period  of 30 days,  whether  or not such  payment  is
         prohibited pursuant to the provisions of Article Ten;




<PAGE>

                                       50

                  (c) the Company defaults in the performance of or breaches any
         other covenant or agreement of the Company  contained in this Indenture
         or under the  Securities  and such  default or breach  continues  for a
         period of 30  consecutive  days after written  notice to the Company by
         the Trustee or the Holders of 25% or more in aggregate principal amount
         of the Securities;

                  (d)  there  occurs  with  respect  to any  issue or  issues of
         Indebtedness of the Company,  or any Significant  Subsidiary  having an
         outstanding  principal  amount of  $25,000,000 or more in the aggregate
         for all such issues of all such Persons,  whether such Indebtedness now
         exists or shall hereafter be created,  (i) an event of default that has
         caused the holder  thereof to declare such  Indebtedness  to be due and
         payable prior to its Stated Maturity and such Indebtedness has not been
         discharged  in full or such  acceleration  has not  been  rescinded  or
         annulled within 30 days of such acceleration and/or (ii) the failure to
         make a  principal  payment  at the final  (but not any  interim)  fixed
         maturity and such defaulted payment shall not have been made, waived or
         extended within 30 days of such payment default;

                  (e) any final judgment or order (not covered by insurance) for
         the payment of money in excess of  $25,000,000 in the aggregate for all
         such final  judgments or orders against all such Persons  (treating any
         deductibles,  self-insurance  or retention as not so covered)  shall be
         rendered  against the Company or any  Significant  Subsidiary and shall
         not be  paid  or  discharged,  and  there  shall  be any  period  of 60
         consecutive  days  following  entry of the final judgment or order that
         causes the  aggregate  amount for all such  final  judgments  or orders
         outstanding  and not paid or  discharged  against  all such  Persons to
         exceed  $25,000,000  during which a stay of  enforcement  of such final
         judgment or order,  by reason of a pending  appeal or otherwise,  shall
         not be in effect;

                  (f) a court  having  jurisdiction  in the  premises  enters  a
         decree  or order  for (A)  relief  in  respect  of the  Company  or any
         Significant  Subsidiary  in an  involuntary  case under any  applicable
         bankruptcy, insolvency or other similar law now or hereafter in effect,
         (B)  appointment  of  a  receiver,  liquidator,   assignee,  custodian,
         trustee,  sequestrator  or  similar  official  of  the  Company  or any
         Significant  Subsidiary or for all or substantially all of the property
         and assets of the  Company  or any  Significant  Subsidiary  or (C) the
         winding  up or  liquidation  of  the  affairs  of  the  Company  or any
         Significant  Subsidiary  and, in each case,  such decree or order shall
         remain unstayed and in effect for a period of 60 consecutive days; or




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                                       51

                  (g) the Company or any Significant  Subsidiary (i) commences a
         voluntary  case under any  applicable  bankruptcy,  insolvency or other
         similar law now or hereafter in effect,  or consents to the entry of an
         order  for  relief in an  involuntary  case  under  any such law,  (ii)
         consents  to the  appointment  of or taking  possession  by a receiver,
         liquidator,  assignee,  custodian,  trustee,  sequestrator  or  similar
         official of the  Company or any  Significant  Subsidiary  or for all or
         substantially  all of the  property  and  assets of the  Company or any
         Significant  Subsidiary or (iii) effects any general assignment for the
         benefit of creditors.

                  SECTION 6.02. Acceleration. If an Event of Default (other than
an Event of Default  specified  in clause (f) or (g) of Section 6.01 that occurs
with respect to the Company) occurs and is continuing under this Indenture,  the
Trustee or the  Holders  of at least 25% in  aggregate  principal  amount of the
Securities,  then  outstanding,  by written  notice to the  Company  (and to the
Trustee if such  notice is given by the  Holders),  may,  and the Trustee at the
request of such Holders shall,  declare the principal of,  premium,  if any, and
accrued  interest on the  Securities to be immediately  due and payable.  Upon a
declaration  of  acceleration,  such  principal,  premium,  if any,  and accrued
interest shall be immediately due and payable.  In the event of a declaration of
acceleration because an Event of Default set forth in clause (d) of Section 6.01
has  occurred and is  continuing,  such  declaration  of  acceleration  shall be
automatically  rescinded  and annulled if the event of default  triggering  such
Event of  Default  pursuant  to  clause  (d) shall be  remedied  or cured by the
Company or the relevant  Significant  Subsidiary or waived by the holders of the
relevant  Indebtedness within 60 days after the declaration of acceleration with
respect  thereto.  If an Event of  Default  specified  in  clause  (f) or (g) of
Section 6.01 occurs with respect to the Company,  the principal of, premium,  if
any, and accrued  interest on the Securities then  outstanding  shall ipso facto
become and be immediately  due and payable  without any declaration or other act
on the part of the Trustee or any Holder.

                  At any time  after such a  declaration  of  acceleration,  but
before a judgment or decree for the  payment of the money due has been  obtained
by the Trustee,  the Holders of at least a majority in  principal  amount of the
outstanding Securities, by written notice to the Company and to the Trustee, may
waive all past Defaults and rescind and annul such  declaration of  acceleration
and its consequences if (a) the Company has paid or deposited with the Trustee a
sum sufficient to pay (i) all sums paid or advanced by the Trustee hereunder and
the  reasonable  compensation,  expenses,  disbursements  and  advances  of  the
Trustee,  its agents and counsel,  (ii) all overdue  interest on all Securities,
(iii) the principal of and premium,  if any, on any Securities  that have become
due  otherwise  than by such  declaration  or  occurrence  of  acceleration  and
interest thereon at the rate prescribed therefor by such Securities, and



<PAGE>

                                       52

(iv) to the extent  that  payment of such  interest  is  lawful,  interest  upon
overdue  interest at the rate prescribed  therefor by such  Securities,  (b) all
existing  Events of Default,  other than the  nonpayment  of the  principal  of,
premium,  if any, and accrued  interest on the  Securities  that have become due
solely by such  declaration of  acceleration,  have been cured or waived and (c)
the  rescission  would not  conflict  with any  judgment or decree of a court of
competent jurisdiction.

                  SECTION 6.03.  Other  Remedies.  If an Event of Default occurs
and is continuing,  the Trustee may pursue any available remedy by proceeding at
law or in equity to collect the payment of  principal  of,  premium,  if any, or
interest on the Securities or to enforce the performance of any provision of the
Securities or this Indenture.

                  The  Trustee  may  maintain a  proceeding  even if it does not
possess any of the Securities or does not produce any of them in the proceeding.

                  SECTION  6.04.  Waiver of Past  Defaults.  Subject to Sections
6.02,  6.07 and 9.02, the Holders of at least a majority in principal  amount of
the outstanding Securities, by written notice to the Trustee, may waive all past
Defaults  and  Events  of  Default  and  rescind  and  annul  a  declaration  of
acceleration  (except a Default in the payment of principal of, premium, if any,
or interest on any Security as specified in clause (a) or (b) of Section 6.01 or
in respect of a covenant or provision of this Indenture which cannot be modified
or  amended  without  the  consent of the  holder of each  outstanding  Security
affected) if (i) all existing  Events of Default,  other than the  nonpayment of
principal of,  premium,  if any, or interest on the Securities  that have become
due solely by such  declaration of  acceleration,  have been cured or waived and
(ii) the rescission would not conflict with any judgment or decree of a court of
competent jurisdiction. Upon any such waiver, such Default shall cease to exist,
and any Event of Default  arising  therefrom shall be deemed to have been cured,
for every  purpose of this  Indenture;  but no such waiver  shall  extend to any
subsequent or other  Default or Event of Default or impair any right  consequent
thereto.

                  SECTION 6.05.  Control by Majority.  The Holders of at least a
majority in aggregate principal amount of the outstanding  Securities may direct
the time, method and place of conducting any proceeding for any remedy available
to the  Trustee  or  exercising  any trust or power  conferred  on the  Trustee;
provided,  however,  that the  Trustee may refuse to follow any  direction  that
conflicts with law or this  Indenture,  that may involve the Trustee in personal
liability,  or  that  the  Trustee  determines  in  good  faith  may  be  unduly
prejudicial  to the  rights  of  Holders  not  joining  in the  giving  of  such
direction; and provided further, however, that the Trustee may



<PAGE>

                                       53

take  any  other  action  it  deems  proper  that is not  inconsistent  with any
directions received from Holders of Securities pursuant to this Section 6.05.

                  SECTION 6.06. Limitation on Suits. A Holder or Holders may not
institute any proceeding,  judicial or otherwise, with respect to this Indenture
or the Securities,  or for the appointment of a receiver or trustee,  or for any
other remedy hereunder, unless:

     (i) such Holder or Holders  have  previously  given to the Trustee  written
notice of a continuing Event of Default;

     (ii)  the  Holders  of at  least  25%  in  aggregate  principal  amount  of
outstanding  Securities  shall  have made  written  request  to the  Trustee  to
institute  proceedings  in  respect  of such Event of Default in its own name as
Trustee hereunder;

     (iii)  such  Holder  or  Holders  have  offered  to the  Trustee  indemnity
reasonably  satisfactory  to the  Trustee  against  any  costs,  liabilities  or
expenses to be incurred in compliance with such request;

     (iv) the Trustee for 60 days after its receipt of such notice,  request and
offer of indemnity has failed to institute any such proceeding; and

     (v) during such  60-day  period,  the  Holders of a majority  in  aggregate
principal  amount of the  outstanding  Securities  have not given the  Trustee a
direction that is inconsistent with such written request.

                  For  purposes  of  Section  6.05 of this  Indenture  and  this
Section  6.06,  the Trustee  shall comply with TIA Section  316(a) in making any
determination of whether the Holders of the required aggregate  principal amount
of  outstanding  Securities  have  concurred  in any request or direction of the
Trustee to pursue any  remedy  available  to the  Trustee  or the  Holders  with
respect to this Indenture or the Securities or otherwise under the law.

                  A Holder may not use this Indenture to prejudice the rights of
another Holder or to obtain a preference or priority over such other Holder.

                  SECTION   6.07.   Rights  of  Holders   to  Receive   Payment.
Notwithstanding  any other provision of this Indenture,  the right of any Holder
of a Security to receive payment of principal of,  premium,  if any, or interest
on such Holder's Security on or after the respective due dates expressed on such
Security, or to



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                                       54

bring suit for the  enforcement of any such payment on or after such  respective
dates, shall not be impaired or affected without the consent of such Holder.

                  SECTION  6.08.  Collection  Suit by  Trustee.  If an  Event of
Default in payment of  principal,  premium or interest  specified in clause (a),
(b) or (c) of Section  6.01  occurs and is  continuing,  the Trustee may recover
judgment in its own name and as trustee of an express  trust against the Company
or any  other  obligor  of the  Securities  for the whole  amount of  principal,
premium,  if any, and accrued interest remaining unpaid,  together with interest
on overdue principal,  premium,  if any, and, to the extent that payment of such
interest is lawful,  interest on overdue installments of interest,  in each case
at the rate  specified in the  Securities,  and such further  amount as shall be
sufficient  to cover  the  costs  and  expenses  of  collection,  including  the
reasonable  compensation,  expenses,  disbursements and advances of the Trustee,
its agents and counsel.

                  SECTION  6.09.  Trustee May File Proofs of Claim.  The Trustee
may file such proofs of claim and other  papers or documents as may be necessary
or advisable in order to have the claims of the Trustee (including any claim for
the  reasonable  compensation,  expenses,  disbursements  and  advances  of  the
Trustee,  its agents and counsel,  and any other  amounts due the Trustee  under
Section 7.07) and the Holders  allowed in any judicial  proceedings  relative to
the Company  (or any other  obligor of the  Securities),  its  creditors  or its
property and shall be entitled and  empowered to collect and receive any monies,
securities or other property  payable or deliverable upon conversion or exchange
of the  Securities or upon any such claims and to distribute  the same,  and any
custodian,  receiver,  assignee,  trustee,  liquidator,  sequestrator  or  other
similar  official in any such judicial  proceeding is hereby  authorized by each
Holder to make such  payments to the Trustee  and, in the event that the Trustee
shall consent to the making of such payments directly to the Holders,  to pay to
the  Trustee  any amount due to it for the  reasonable  compensation,  expenses,
disbursements and advances of the Trustee,  its agent and counsel, and any other
amounts due the Trustee under Section 7.07.  Nothing herein  contained  shall be
deemed to empower the Trustee to  authorize or consent to, or accept or adopt on
behalf of any Holder,  any plan of  reorganization,  arrangement,  adjustment or
composition  affecting the Securities or the rights of any Holder thereof, or to
authorize  the Trustee to vote in respect of the claim of any Holder in any such
proceeding.

               SECTION  6.10.  Priorities.  If the Trustee holds or collects any
money or property  pursuant to this  Article Six, it shall pay out the  money or
property in the following order:

               First: to the Trustee for all amounts due under Section 7.07;



<PAGE>

                                       55

               Second:  to Holders for amounts then due and unpaid for principal
          of,  premium,  if any,  and interest on the  Securities  in respect of
          which or for the  benefit  of which  such  money  has been  collected,
          ratably,  without preference or priority of any kind, according to the
          amounts due and payable on such Securities for principal,  premium, if
          any, and interest, respectively; and

               Third: to the Company or any other obligors of the Securities, as
          their  interests may appear,  or as a court of competent  jurisdiction
          may direct.

                  The Trustee, upon prior written notice to the Company, may fix
a record  date and  payment  date for any  payment to Holders  pursuant  to this
Section 6.10.

                  SECTION  6.11.  Undertaking  for  Costs.  In any  suit for the
enforcement  of any right or remedy under this  Indenture or in any suit against
the  Trustee  for any  action  taken or omitted  by it as  Trustee,  a court may
require any party  litigant in such suit to file an undertaking to pay the costs
of the suit, and the court may assess  reasonable  costs,  including  reasonable
attorneys' fees, against any party litigant in the suit having due regard to the
merits and good faith of the claims or defenses made by the party litigant. This
Section  6.11  does  not  apply  to a suit by the  Trustee,  a suit by a  Holder
pursuant to Section  6.07 of this  Indenture,  or a suit by Holders of more than
10% in principal amount of the outstanding Securities.

                  SECTION  6.12.  Restoration  of Rights  and  Remedies.  If the
Trustee or any Holder has  instituted  any  proceeding  to enforce  any right or
remedy  under  this  Indenture  and such  proceeding  has been  discontinued  or
abandoned for any reason, or has been determined  adversely to the Trustee or to
such Holder,  then, and in every such case, subject to any determination in such
proceeding, the Company, the Trustee and the Holders shall be restored severally
and respectively to their former  positions  hereunder and thereafter all rights
and remedies of the Company, Trustee and the Holders shall continue as though no
such proceeding has been instituted.

                  SECTION  6.13.  Rights  and  Remedies  Cumulative.  Except  as
otherwise  provided  with respect to the  replacement  or payment of  mutilated,
destroyed,  lost or  wrongfully  taken  Securities  in Section 2.07, no right or
remedy  herein  conferred  upon or  reserved to the Trustee or to the Holders is
intended  to be  exclusive  of any other  right or remedy,  and every  right and
remedy shall,  to the extent  permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or  otherwise.  The  assertion or employment of any right or remedy
hereunder,  or  otherwise,   shall  not  prevent  the  concurrent  assertion  or
employment of any other appropriate right or remedy.




<PAGE>

                                       56

                  SECTION  6.14.  Delay  or  Omission  Not  Waiver.  No delay or
omission  of the  Trustee  or of any  Holder  to  exercise  any  right or remedy
accruing  upon any Event of  Default  shall  impair  any such right or remedy or
constitute  a waiver of any such Event of Default  or an  acquiescence  therein.
Every right and remedy  given by this Article Six or by law to the Trustee or to
the Holders may be  exercised  from time to time,  and as often as may be deemed
expedient, by the Trustee or by the Holders, as the case may be.


                                  ARTICLE SEVEN

                                     TRUSTEE

                  SECTION 7.01. General.  The duties and responsibilities of the
Trustee shall be as provided by the TIA and as set forth herein.  Whether or not
herein expressly so provided,  every provision of this Indenture relating to the
conduct or affecting  the  liability of or affording  protection  to the Trustee
shall be subject to the provisions of this Article Seven.

                  SECTION 7.02.  Certain Rights of Trustee.  Subject to TIA
Sections 315(a) through (d):

     (i) the Trustee  may rely and shall be  protected  in acting or  refraining
from acting upon any resolution,  certificate,  statement,  instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper person.  The Trustee need not
investigate  any fact or matter  stated in the  document  and may in good  faith
conclusively  rely as to the truth of the statements and the  correctness of the
opinions therein;

     (ii) before the Trustee  acts or refrains  from  acting,  it may require an
Officers'  Certificate or an Opinion of Counsel. The Trustee shall not be liable
for any  action  it takes or omits  to take in good  faith in  reliance  on such
certificate, opinion and/or an accountants' certificate;

     (iii) the Trustee may act through its attorneys and agents and shall not be
responsible  for the misconduct or negligence of any attorney or agent appointed
with due care;




<PAGE>

                                       57

     (iv) the Trustee shall be under no obligation to exercise any of the rights
or powers  vested in it by this  Indenture at the request or direction of any of
the Holders,  unless such Holders shall have offered to the Trustee  security or
indemnity  reasonably  satisfactory  to  it  against  the  costs,  expenses  and
liabilities  that might be incurred  by it in  compliance  with such  request or
direction;

     (v) the  Trustee  shall not be liable  for any  action it takes or omits to
take in good faith that it  believes  to be  authorized  or within its rights or
powers  or for any  action  it takes or  omits  to take in  accordance  with the
direction  of the Holders of a majority in principal  amount of the  Outstanding
Securities  relating to the time,  method and place of conducting any proceeding
for any  remedy  available  to the  Trustee,  or  exercising  any trust or power
conferred upon the Trustee,  under this Indenture;  provided,  however, that the
Trustee's conduct does not constitute negligence or bad faith;

     (vi)  whenever in the  administration  of this  Indenture the Trustee shall
deem it desirable that a fact or circumstance be proved or established  prior to
taking,  suffering or omitting any action  hereunder,  the Trustee (unless other
evidence be herein specifically  prescribed) may, in the absence of bad faith on
its part, request and rely upon an Officer's Certificate;

     (vii) the  Trustee  shall not be bound to make any  investigation  into the
facts or matters stated in any resolution,  certificate,  statement, instrument,
opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
note,  other  evidence  of  indebtedness  or other  paper or  document,  but the
Trustee, in its discretion,  may make such further inquiry or investigation into
such facts or matters as it may see fit, and, if the Trustee shall  determine to
make such further inquiry or investigation,  it shall be entitled to examine the
books,  records and premises of the Company  personally or by agent or attorney;
and

     (viii) any request or  direction of the Company  mentioned  herein shall be
sufficiently  evidenced by a written  Company  Order and any  resolution  of the
Board of Directors may be sufficiently evidenced by a written Board Resolution.

                  SECTION 7.03.  Individual Rights of Trustee.  The Trustee,  in
its  individual  or any other  capacity,  may  become  the owner or  pledgee  of
Securities and may otherwise  deal with the Company or its  Affiliates  with the
same rights it would have if it were not the Trustee.  Any Agent may do the same
with like rights.  However,  the Trustee is subject to TIA  Sections  310(b) and
311.




<PAGE>

                                       58

                  SECTION 7.04. Trustee's  Disclaimer.  The Trustee (i) makes no
representation  as to  the  validity  or  adequacy  of  this  Indenture  or  the
Securities,  (ii) shall not be accountable  for the Company's use or application
of the proceeds from the Securities  and (iii) shall not be responsible  for any
statement in the Securities other than its certificate of authentication.

                  SECTION 7.05.  Notice of Default.  If any Default or any Event
of Default  occurs and is continuing  and if such Default or Event of Default is
known to a trust  officer of the Trustee,  the Trustee shall mail to each Holder
in the manner and to the extent  provided  in TIA Section  313(c)  notice of the
Default or Event of Default  within five Business  Days after it occurs,  unless
such Default or Event of Default has been cured; provided, however, that, except
in the case of a default in the payment of the principal of, premium, if any, or
interest on any  Security,  the Trustee shall be protected in  withholding  such
notice if and so long as the board of directors,  the  executive  committee or a
trust committee of directors  and/or the  Responsible  Officer of the Trustee in
good faith  determines that the withholding of such notice is in the interest of
the Holders.

                  SECTION  7.06.  Reports by Trustee to Holders.  Within 60 days
after each May 15,  beginning  with May 15, 1998, the Trustee shall mail to each
Holder as provided in TIA Section  313(c) a brief report that  complies with TIA
Section 313(a) dated as of such May 15, if required by TIA Section 313(a).

                  SECTION 7.07.  Compensation  and Indemnity.  The Company shall
pay to the  Trustee  from  time to time  and  upon the  Trustee's  request  such
compensation as shall be agreed upon in writing for its services in any capacity
hereunder.  The  compensation  of the Trustee shall not be limited by any law on
compensation  of a trustee of an express trust.  The Company shall reimburse the
Trustee  upon  request for all  reasonable  out-of-pocket  expenses and advances
incurred or made by the Trustee;  provided,  however,  that the Trustee shall be
under no  obligation  whatsoever  under  this  Indenture  or any other  document
delivered in connection with the Securities, to advance or expend its own funds.
Such expenses  shall  include the  reasonable  compensation  and expenses of the
Trustee's agents and counsel.

                  The  Company  shall  indemnify  the Trustee  for,  and hold it
harmless  against,  any loss or  liability  or  expense  incurred  by it without
negligence  or bad  faith  on its part in  connection  with  the  acceptance  or
administration  of this  Indenture  and its duties under this  Indenture and the
Securities,  including,  without limitation, the costs and expenses of defending
itself  against any claim or liability and of complying  with any process served
upon it or any of its officers in connection with the exercise or performance of
any of its powers or duties under this Indenture and the Securities.



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                                       59

                  To secure the Company's  payment  obligations  in this Section
7.07,  the  Trustee  shall have a lien prior to the  Securities  on all money or
property  held or collected by the Trustee,  in its capacity as Trustee,  except
money or  property  held in trust to pay  principal  of,  premium,  if any,  and
interest on particular Securities.

                  If the Trustee incurs  expenses or renders  services after the
occurrence  of an Event of  Default  specified  in clause  (f) or (g) of Section
6.01,  the  expenses  and the  compensation  for the  services  are  intended to
constitute  expenses  of  administration  under  Title 11 of the  United  States
Bankruptcy  Code or any  applicable  federal  or  state  law for the  relief  of
debtors.

                  SECTION 7.08. Replacement of Trustee. A resignation or removal
of the Trustee and  appointment  of a successor  Trustee shall become  effective
only upon the successor Trustee's  acceptance of appointment as provided in this
Section 7.08.

                  The Trustee may resign at any time by so notifying the Company
in writing at least 30 days prior to the date of the proposed  resignation.  The
Holders of a majority in  principal  amount of the  outstanding  Securities  may
remove the  Trustee by so  notifying  the  Trustee in writing  and may appoint a
successor  Trustee with the consent of the Company.  The Company may at any time
remove the Trustee, by Company Order given at least 30 days prior to the date of
the proposed removal.

                  If the Trustee  resigns or is removed,  or if a vacancy exists
in the office of Trustee for any reason,  the Company shall  promptly  appoint a
successor Trustee. Within one year after the successor Trustee takes office, the
Holders of a majority in  principal  amount of the  outstanding  Securities  may
appoint a successor  Trustee to replace the successor  Trustee  appointed by the
Company.  If the  successor  Trustee  does not deliver  its  written  acceptance
required by the next  succeeding  paragraph  of this Section 7.08 within 30 days
after the retiring  Trustee  resigns or is removed,  the retiring  Trustee,  the
Company or the  Holders of a majority  in  principal  amount of the  outstanding
Securities may petition any court of competent  jurisdiction for the appointment
of a successor Trustee.

                  A successor Trustee shall deliver a written  acceptance of its
appointment to the retiring  Trustee and to the Company.  Immediately  after the
delivery of such  written  acceptance,  either  subject to the lien  provided in
Section 7.07 or less amounts retained by the retiring Trustee to satisfy amounts
owed to it pursuant to the terms of this Indenture, including but not limited to
Section  7.07  hereof,  as the  retiring  Trustee  determines,  (i) the retiring
Trustee  shall  transfer  all  property  held by it as Trustee to the  successor
Trustee,  (ii) the  resignation or removal of the retiring  Trustee shall become
effective and (iii) the successor Trustee shall have all the rights,  powers and
duties of



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                                       60

the Trustee under this Indenture.  A successor Trustee shall mail notice of its
succession to each Holder.

                  If the Trustee is no longer  eligible  under Section 7.10, any
Holder who satisfies  the  requirements  of TIA Section  310(b) may petition any
court  of  competent  jurisdiction  for  the  removal  of the  Trustee  and  the
appointment of a successor Trustee.

                  The  Company  shall  give  notice of any  resignation  and any
removal  of the  Trustee  and each  appointment  of a  successor  Trustee to all
Holders.  Each notice shall  include the name of the  successor  Trustee and the
address of its Corporate Trust Office.

                  Notwithstanding  replacement  of the Trustee  pursuant to this
Section  7.08,  the  Company's  obligations  under  Section 7.07 shall  continue
indefinitely for the benefit of the retiring Trustee.

                  SECTION 7.09. Successor Trustee by Merger, Etc. If the Trustee
consolidates  with,  merges or converts into, or transfers all or  substantially
all of its corporate trust business to, another  corporation or national banking
association,  the  resulting,  surviving or transferee  corporation  or national
banking  association without any further act shall be the successor Trustee with
the same  effect  as if the  successor  Trustee  had been  named as the  Trustee
herein.

                  SECTION 7.10. Eligibility.  This Indenture shall always have a
Trustee who satisfies the  requirements  of TIA Section  310(a)(1).  The Trustee
shall have a combined  capital and surplus of at least  $25,000,000 as set forth
in its most recent published annual report of condition.

                  SECTION  7.11.  Money Held in Trust.  The Trustee shall not be
liable for interest on any money  received by it except as the Trustee may agree
in writing  with the  Company.  Money held in trust by the  Trustee  need not be
segregated  from other funds except to the extent required by law and except for
money held in trust under Article Eight of this Indenture.

                  SECTION 7.12. Withholding Taxes. The Trustee, as agent for the
Company,  shall exclude and withhold from each payment of principal and interest
and other amounts due hereunder or under the Securities any and all  withholding
taxes  applicable  thereto as required by law. The Trustee agrees to act as such
withholding agent and, in connection  therewith,  whenever any present or future
taxes or similar charges are required to be withheld with respect to any amounts
payable in respect of the  Securities,  to withhold  such amounts and timely pay
the same to the appropriate



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                                       61

authority in the name of and on behalf of the holders of the Securities, that it
will file any  necessary  withholding  tax returns or  statements  when due, and
that, as promptly as possible after the payment thereof, it will deliver to each
Holder of a Security  appropriate  documentation  showing the  payment  thereof,
together  with  such  additional   documentary  evidence  as  such  Holders  may
reasonably request from time to time.


                                  ARTICLE EIGHT

                             DISCHARGE OF INDENTURE

                  SECTION 8.01. Termination of Company's Obligations. Except as
otherwise  provided  in  this  Section  8.01,  the  Company  may  terminate  its
obligations under the Securities and this Indenture if:

                  (i) all  Securities  previously  authenticated  and  delivered
         (other  than  destroyed,  lost or  stolen  Securities  that  have  been
         replaced  or  Securities  that are paid  pursuant  to  Section  4.01 or
         Securities for whose payment money or securities have  theretofore been
         held in trust and  thereafter  repaid to the  Company,  as  provided in
         Section 8.05) have been delivered to the Trustee for  cancellation  and
         the Company has paid all sums payable by it hereunder; or

                (ii) (A) the  Securities  mature  within one year or all of them
         are to be called for  redemption  within  one year  under  arrangements
         satisfactory  to the Trustee for giving the notice of  redemption,  (B)
         the Company irrevocably  deposits in trust with the Trustee during such
         one-year period,  under the terms of an irrevocable  trust agreement in
         form and substance  satisfactory to the Trustee,  as trust funds solely
         for  the  benefit  of the  Holders  for  that  purpose,  money  or U.S.
         Government  Obligations  sufficient  (in the  opinion  of a  nationally
         recognized  firm  of  independent  public  accountants  expressed  in a
         written  certification  thereof  delivered  to  the  Trustee),  without
         consideration  of any  reinvestment  of any  interest  thereon,  to pay
         principal,  premium, if any, and interest on the Securities to maturity
         or redemption, as the case may be, and to pay all other sums payable by
         it  hereunder,  (C) no Default or Event of Default  with respect to the
         Securities  shall have  occurred and be  continuing on the date of such
         deposit,  (D) such deposit will not result in a breach or violation of,
         or constitute a default under, this Indenture or any other agreement or
         instrument  to which the Company is a party or by which it is bound and
         (E) the Company has  delivered to the Trustee an Officers'  Certificate
         and an Opinion of Counsel,  in each case  stating  that all  conditions
         precedent   provided  for  herein  relating  to  the  satisfaction  and
         discharge of this Indenture have been complied with.


<PAGE>

                                       62

                  With  respect  to the  foregoing  clause  (i),  the  Company's
obligations  under  Section 7.07 shall  survive.  With respect to the  foregoing
clause (ii), the Company's obligations in Sections 2.02, 2.03, 2.04, 2.05, 2.06,
2.07,  2.11, 4.01, 4.02, 7.07, 7.08, 8.04, 8.05 and 8.06 shall survive until the
Securities are no longer outstanding. Thereafter, only the Company's obligations
in  Sections  7.07,  8.05 and 8.06  shall  survive.  After any such  irrevocable
deposit,  the Trustee upon request shall acknowledge in writing the discharge of
the Company's  obligations,  as the case may be, under the  Securities  and this
Indenture except for those surviving obligations specified above.

                  SECTION  8.02.  Defeasance  and  Discharge of  Indenture.  The
Company  will be  deemed to have  paid and will be  discharged  from any and all
obligations  in respect of the  Securities  on the 123rd day (or,  to the extent
applicable  under  clause (D)  below,  one year)  after the date of the  deposit
referred to in clause (A) of this Section 8.02 if:

                  (A) with  reference  to this  Section  8.02,  the  Company has
         irrevocably  deposited or caused to be  irrevocably  deposited with the
         Trustee (or another trustee satisfying the requirements of Section 7.10
         of this  Indenture) and conveyed all right,  title and interest for the
         benefit  of the  Holders,  under  the  terms  of an  irrevocable  trust
         agreement in form and  substance  satisfactory  to the Trustee as trust
         funds in trust,  specifically pledged to the Trustee for the benefit of
         the Holders as security for payment of the  principal of,  premium,  if
         any, and interest, if any, on the Securities,  and dedicated solely to,
         the benefit of the Holders,  in and to (1) money in an amount, (2) U.S.
         Government Obligations that, through the payment of interest,  premium,
         if any,  and  principal  in respect  thereof in  accordance  with their
         terms, will provide,  not later than one day before the due date of any
         payment  referred to in this  clause  (A),  money in an amount or (3) a
         combination  thereof  in an  amount  sufficient,  in the  opinion  of a
         nationally  recognized firm of independent public accountants expressed
         in a written certification thereof delivered to the Trustee, to pay and
         discharge,  without  consideration of the reinvestment of such interest
         and after  payment  of all  federal,  state  and  local  taxes or other
         charges and assessments in respect thereof payable by the Trustee,  the
         principal of, premium,  if any, and accrued interest on the outstanding
         Securities  at the Stated  Maturity or earlier  optional  redemption of
         such principal or interest;  provided,  however, that the Trustee shall
         have been irrevocably instructed to apply such money or the proceeds of
         such U.S.  Government  Obligations  to the  payment of such  principal,
         premium, if any, and interest with respect to the Securities;




<PAGE>

                                       63

                  (B) such deposit will not result in a breach or violation  of,
         or constitute a default under, this Indenture or any other agreement or
         instrument to which the Company is a party or by which it is bound;

                  (C)  immediately  after giving effect to such deposit on a pro
         forma basis,  no Default or Event of Default shall have occurred and be
         continuing  on the date of such  deposit;  and no  Default  or Event of
         Default  shall occur during the period  ending on the 123rd day (or one
         year) after such date of deposit;

                  (D) the Company shall have delivered to the Trustee (1) either
         (x) a ruling directed to the Trustee received from the Internal Revenue
         Service to the effect that the Holders will not recognize income,  gain
         or loss for federal  income tax  purposes as a result of the  Company's
         exercise of its option  under this  Section 8.02 and will be subject to
         federal income tax on the same amount and in the same manner and at the
         same  times as would  have  been the case if such  option  had not been
         exercised or (y) an Opinion of Counsel to the same effect as the ruling
         described  in clause (x) above  accompanied  by a ruling to that effect
         published  by the  Internal  Revenue  Service,  unless there has been a
         change in the applicable  federal income tax law since the date of this
         Indenture  such that a ruling from the Internal  Revenue  Service is no
         longer  required  and (2) an Opinion of Counsel to the effect  that (x)
         the creation of the  defeasance  trust does not violate the  Investment
         Company Act of 1940 and (y) after the passage of 123 days following the
         deposit (except, with respect to any trust funds for the account of any
         Holder who may be deemed to be an "insider"  for purposes of the United
         States  Bankruptcy  Code,  after one year  following the deposit),  the
         trust  funds will not be  subject  to the effect of Section  547 of the
         United States  Bankruptcy Code or Section 15 of the New York Debtor and
         Creditor Law in a case commenced by or against the Company under either
         such statute,  and either (i) the trust funds will no longer remain the
         property  of the  Company  (and  therefore  will not be  subject to the
         effect of any  applicable  bankruptcy,  insolvency,  reorganization  or
         similar laws affecting  creditors' rights generally) or (ii) if a court
         were to rule  under  any such law in any  case or  proceeding  that the
         trust funds  remained  property of the Company (a) assuming  such trust
         funds  remained in the  possession  of the Trustee  prior to such court
         ruling to the extent not paid to the  Holders,  the Trustee  will hold,
         for the benefit of the Holders, a valid and perfected security interest
         in such trust funds that is not  avoidable in  bankruptcy  or otherwise
         except for the effect of Section 552(b) of the United States Bankruptcy
         Code on interest on the trust funds accruing after the  commencement of
         a case under such  statute  and (b) the  Holders  will be  entitled  to
         receive  adequate  protection of their interests in such trust funds if
         such trust funds are used in such case or proceeding;



<PAGE>

                                       64

                  (E) if the Securities are then listed on a national securities
         exchange, the Company shall have delivered to the Trustee an Opinion of
         Counsel to the effect that such deposit  defeasance  and discharge will
         not cause the Securities to be delisted; and

                  (F) the Company  has  delivered  to the  Trustee an  Officers'
         Certificate  and an Opinion of Counsel,  in each case  stating that all
         conditions  precedent  provided for herein  relating to the  defeasance
         contemplated by this Section 8.02 have been complied with.

                  Notwithstanding the foregoing, prior to the end of the 123-day
(or one year) period referred to in clause  (D)(2)(y) of this Section 8.02, none
of  the  Company's   obligations  under  this  Indenture  shall  be  discharged.
Subsequent  to the end of such 123-day (or one year) period with respect to this
Section 8.02,  the Company's  obligations in Sections 2.02,  2.03,  2.04,  2.05,
2.06,  2.07, 2.11, 4.01, 4.02, 7.07, 7.08, 8.05 and 8.06 shall survive until the
Securities are no longer outstanding. Thereafter, only the Company's obligations
in Sections  7.07,  8.05 and 8.06 shall  survive.  If and when a ruling from the
Internal  Revenue Service or an Opinion of Counsel  referred to in clause (D)(1)
of this Section 8.02 may be provided  specifically without regard to, and not in
reliance upon, the continuance of the Company's  obligations under Section 4.01,
then the Company's obligations under such Section 4.01 shall cease upon delivery
to the  Trustee of such  ruling or Opinion of Counsel  and  compliance  with the
other  conditions  precedent  provided  for herein  relating  to the  defeasance
contemplated by this Section 8.02.

                  After any such irrevocable  deposit,  the Trustee upon written
request shall acknowledge in writing the discharge of the Company's  obligations
under the Securities and this Indenture  except for those surviving  obligations
in the immediately preceding paragraph.

                  SECTION 8.03.  Defeasance of Certain Obligations.  The Company
may omit to comply with any term,  provision or  condition  set forth in clauses
(iii) and (iv) of Section 5.01 and Sections 4.03 through 4.19, and clause (c) of
Section 6.01 with respect to clauses (iii) and (iv) of Section 5.01 and Sections
4.03 through  4.19,  and clauses (d) and (e) of Section 6.01 shall be deemed not
to be Events of Default, in each case with respect to the outstanding Securities
if:

     (i) with  reference  to this  Section  8.03,  the Company  has  irrevocably
deposited  or caused to be  irrevocably  deposited  with the Trustee (or another
trustee  satisfying  the  requirements  of Section 7.10) and conveyed all right,
title and  interest to the Trustee  for the  benefit of the  Holders,  under the
terms of an


<PAGE>

                                       65

irrevocable trust agreement in form and substance satisfactory to the Trustee as
trust funds in trust, specifically pledged to the Trustee for the benefit of the
Holders as security  for  payment of the  principal  of,  premium,  if any,  and
interest, if any, on the Securities, and dedicated solely to, the benefit of the
Holders, in and to (A) money in an amount, (B) U.S. Government Obligations that,
through the payment of interest and  principal in respect  thereof in accordance
with their terms,  will  provide,  not later than one day before the due date of
any  payment  referred  to in this  clause  (i),  money  in an  amount  or (C) a
combination  thereof in an amount  sufficient,  in the  opinion of a  nationally
recognized  firm  of  independent  public  accountants  expressed  in a  written
certification  thereof delivered to the Trustee,  to pay and discharge,  without
consideration  of the  reinvestment  of such  interest and after  payment of all
federal,  state and local  taxes or other  charges  and  assessments  in respect
thereof payable by the Trustee,  the principal of, premium, if any, and interest
on the  outstanding  Securities  on the  Stated  Maturity  or  earlier  optional
redemption of such principal or interest;  provided,  however,  that the Trustee
shall have been  irrevocably  instructed  to apply such money or the proceeds of
such U.S. Government  Obligations to the payment of such principal,  premium, if
any, and interest with respect to the Securities;

     (ii)  such  deposit  will  not  result  in a breach  or  violation  of,  or
constitute a default under,  this Indenture or any other agreement or instrument
to which the Company is a party or by which it is bound;

     (iii) no Default or Event of Default  shall have occurred and be continuing
on the date of such deposit;

     (iv) the Company has  delivered to the Trustee an Opinion of Counsel to the
effect  that (A) the  creation  of the  defeasance  trust does not  violate  the
Investment  Company  Act of 1940,  (B) the Holders  have a valid  first-priority
security interest in the trust funds, (C) the Holders will not recognize income,
gain or loss for federal income tax purposes as a result of such deposit and the
defeasance of the obligations referred to in the first paragraph of this Section
8.03 and will be  subject to  federal  income tax on the same  amount and in the
same  manner and at the same  times as would have been the case if such  deposit
and  defeasance had not occurred and (D) after the passage of 123 days following
the  deposit  (except,  with  respect to any trust  funds for the account of any
Holder who may be deemed to be an "insider"  for  purposes of the United  States
Bankruptcy Code, after one year following the deposit), the trust funds will not
be subject to the effect of Section 547 of the United States  Bankruptcy Code or
Section 15 of the New York Debtor and Creditor Law in a case



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                                       66

commenced by or against the Company  under either such  statute,  and either (1)
the trust funds will no longer remain the property of the Company (and therefore
will not be  subject  to the effect of any  applicable  bankruptcy,  insolvency,
reorganization or similar laws affecting  creditors' rights generally) or (2) if
a court were to rule under any such law in any case or proceeding that the trust
funds remained property of the Company (x) assuming such trust funds remained in
the  possession of the Trustee prior to such court ruling to the extent not paid
to the Holders,  the Trustee will hold, for the benefit of the Holders,  a valid
and  perfected  security  interest in such trust funds that is not  avoidable in
bankruptcy or otherwise  (except for the effect of Section  552(b) of the United
States  Bankruptcy  Code on  interest  on the  trust  funds  accruing  after the
commencement of a case under such statute),  (y) the Holders will be entitled to
receive adequate protection of their interests in such trust funds if such trust
funds  are  used in such  case or  proceeding  and (z) no  property,  rights  in
property  or other  interests  granted to the Trustee or the Holders in exchange
for, or with respect to, such trust funds will be subject to any prior rights of
holders of other Indebtedness of the Company or any of its Subsidiaries;

     (v) if the  Securities are then listed on a national  securities  exchange,
the  Company  shall have  delivered  to the Trustee an Opinion of Counsel to the
effect that such deposit  defeasance and discharge will not cause the Securities
to be delisted; and

     (vi) the Company has delivered to the Trustee an Officers'  Certificate and
an  Opinion of  Counsel,  in each case  stating  that all  conditions  precedent
provided for herein relating to the defeasance contemplated by this Section 8.03
have been complied with.

                  SECTION 8.04.  Application of Trust Money.  Subject to Section
8.06,  the Trustee or Paying Agent shall hold in trust money or U.S.  Government
Obligations  deposited  with it pursuant to Section  8.01,  8.02 or 8.03, as the
case may be,  and shall  apply  the  deposited  money  and the  money  from U.S.
Government  Obligations in accordance  with the Securities and this Indenture to
the payment of principal of,  premium,  if any, and interest on the  Securities;
but such money need not be  segregated  from  other  funds  except to the extent
required by law.

                  SECTION 8.05. Repayment to Company.  Subject to Sections 7.07,
8.01,  8.02 and 8.03, the Trustee and the Paying Agent shall promptly pay to the
Company upon request set forth in an Officers' Certificate any excess money held
by them at any time and  thereupon  shall be relieved  from all  liability  with
respect to such money. The Trustee and the Paying Agent shall pay to the Company
upon request any



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                                       67

money held by them for the payment of  principal,  premium,  if any, or interest
that remains  unclaimed for two years;  provided,  however,  that the Trustee or
such Paying Agent before  being  required to make any payment  shall cause to be
published  at  the  expense  of the  Company  once  in a  newspaper  of  general
circulation  in the City of New  York or mail to each  Holder  entitled  to such
money at such Holder's  address (as set forth in the Security  Register)  notice
that such money remains unclaimed and that after a date specified therein (which
shall be at least 30 days  from the date of such  publication  or  mailing)  any
unclaimed  balance of such money then  remaining  will be repaid to the Company.
After  payment to the Company,  Holders  entitled to such money must look to the
Company for payment as general  creditors  unless an applicable  law  designates
another  Person,  and all  liability  of the Trustee and such Paying  Agent with
respect to such money shall cease.

                  SECTION 8.06. Reinstatement. If the Trustee or Paying Agent is
unable to apply any money or U.S.  Government  Obligations  in  accordance  with
Section  8.01,  8.02 or  8.03,  as the  case  may be,  by  reason  of any  legal
proceeding  or by reason of any order or judgment  of any court or  governmental
authority enjoining,  restraining or otherwise prohibiting such application, the
Company's  obligations  under this Indenture and the Securities shall be revived
and reinstated as though no deposit had occurred  pursuant to Section 8.01, 8.02
or 8.03,  as the case may be,  until such time as the Trustee or Paying Agent is
permitted to apply all such money or U.S.  Government  Obligations in accordance
with Section 8.01, 8.02 or 8.03, as the case may be; provided, however, that, if
the Company has made any payment of principal of,  premium,  if any, or interest
on any Securities  because of the reinstatement of its obligations,  the Company
shall be subrogated  to the rights of the Holders of such  Securities to receive
such payment from the money or U.S.  Government  Obligations held by the Trustee
or Paying Agent.

                  SECTION 8.07.  Insiders.  With respect to the determination of
the Persons  constituting  beneficial  owners of Securities and whether any such
Person is an "insider" for purposes of Sections  8.02(D)(2)(y)  and 8.03(iv)(D),
the Trustee may rely on an Officers' Certificate.


                                  ARTICLE NINE

                       AMENDMENTS, SUPPLEMENTS AND WAIVERS

                  SECTION 9.01.  Without Consent of Holders.  The Company, when
authorized by resolutions of its Board of Directors, and the Trustee may amend



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                                       68

or supplement this Indenture or the Securities  without notice to or the consent
of any Holder:

                  (a) to cure any  ambiguity,  defect or  inconsistency  in this
         Indenture; provided, however, that such amendments or supplements shall
         not  adversely  affect the  interests  of the  Holders in any  material
         respect;

                  (b) to comply with Article Five;

                  (c) to comply with any  requirements  of the SEC in connection
         with the qualification of this Indenture under the TIA;

                  (d) to evidence and provide for the  acceptance of appointment
         hereunder by a successor Trustee; or

                  (e) to make any change  that,  in the  opinion of the Board of
         Directors  of the Company  evidenced  by a Board  Resolution,  does not
         materially and adversely affect the rights of any Holder.

                  SECTION  9.02.  With  Consent of Holders.  Subject to Sections
6.04 and 6.07 and  without  prior  notice  to the  Holders,  the  Company,  when
authorized by its Board of Directors (as evidenced by a Board  Resolution),  and
the Trustee may amend this Indenture and the Securities with the written consent
of the  Holders  of a  majority  in  principal  amount  of the  Securities  then
outstanding, and the Holders of a majority in principal amount of the Securities
then outstanding by written notice to the Trustee may waive future compliance by
the Company with any provision of this Indenture or the Securities.

                  Notwithstanding  the provisions of this Section 9.02,  without
the consent of each Holder affected, an amendment or waiver,  including a waiver
pursuant to Section 6.04, may not:

     (i) change the Stated  Maturity of the principal of, or any  installment of
interest on, any Security, or reduce the principal amount thereof or the rate of
interest  thereon  or any  premium  payable  upon  the  redemption  thereof,  or
adversely  affect  any right of  repayment  at the  option of any  Holder of any
Security,  or the currency in which, any Security or any premium or the interest
thereon is payable, or impair the right to institute suit for the enforcement of
any such  payment on or after the Stated  Maturity  thereof  (or, in the case of
redemption, on or after the Redemption Date);




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                                       69

     (ii) reduce the percentage in principal  amount of  outstanding  Securities
the consent of whose  Holders is required for any such  supplemental  indenture,
for any waiver of  compliance  with  certain  provisions  of this  Indenture  or
certain Defaults and their consequences provided for in this Indenture;

     (iii) waive a Default in the payment of principal of,  premium,  if any, or
interest on, any Security; or

     (iv) modify any of the provisions of this Section 9.02,  except to increase
any  such  percentage  or to  provide  that  certain  other  provisions  of this
Indenture cannot be modified or waived without the consent of the Holder of each
outstanding Security affected thereby.

                  It shall not be necessary for the consent of the Holders under
this Section  9.02 to approve the  particular  form of any  proposed  amendment,
supplement or waiver,  but it shall be  sufficient if such consent  approves the
substance thereof.

                  After an  amendment,  supplement  or waiver under this Section
9.02 becomes effective, the Company shall mail to the Holders affected thereby a
notice briefly describing the amendment,  supplement or waiver. The Company will
mail supplemental indentures to Holders upon request. Any failure of the Company
to mail such  notice,  or any defect  therein,  shall not,  however,  in any way
impair or affect the validity of any such supplemental indenture or waiver.

                  SECTION  9.03.  Revocation  and  Effect of  Consent.  Until an
amendment  or  waiver  becomes  effective,  a  consent  to it by a  Holder  is a
continuing  consent by the Holder and every  subsequent  Holder of a Security or
portion  of a  Security  that  evidences  the same debt as the  Security  of the
consenting Holder,  even if notation of the consent is not made on any Security.
However,  any such Holder or subsequent  Holder may revoke the consent as to its
Security or portion of its Security.  Such revocation shall be effective only if
the Trustee  receives the notice of  revocation  before the date the  amendment,
supplement or waiver becomes effective. An amendment, supplement or waiver shall
become  effective on receipt by the Trustee of written consents from the Holders
of the requisite percentage in principal amount of the outstanding Securities.

                  The Company may,  but shall not be obligated  to, fix a record
date for the  purpose of  determining  the  Holders  entitled  to consent to any
amendment,   supplement   or  waiver.   If  a  record   date  is  fixed,   then,
notwithstanding the last two sentences of the immediately  preceding  paragraph,
those  persons who were  Holders at such  record date (or their duly  designated
proxies) and only those persons shall be



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                                       70

entitled  to consent to such  amendment,  supplement  or waiver or to revoke any
consent  previously  given,  whether or not such persons  continue to be Holders
after such record  date.  No such consent  shall be valid or effective  for more
than 90 days after such record date.

                  After an amendment, supplement or waiver becomes effective, it
shall bind every Holder unless it is of the type described in any of clauses (i)
through  (v) of  Section  9.02.  In case of an  amendment  or waiver of the type
described in clauses (i) through (v) of Section  9.02,  the  amendment or waiver
shall bind each Holder who has consented to it and every subsequent  Holder of a
Security that evidences the same  indebtedness as the Security of the consenting
Holder.

                  SECTION  9.04.  Notation on or Exchange of  Securities.  If an
amendment, supplement or waiver changes the terms of a Security, the Trustee may
require  the Holder to deliver  such  Security to the  Trustee.  The Trustee may
place an appropriate notation on the Security about the changed terms and return
it to the  Holder  and the  Trustee  may place an  appropriate  notation  on any
Security thereafter authenticated.  Alternatively, if the Company or the Trustee
so  determines,  the Company in exchange  for the  Security  shall issue and the
Trustee shall authenticate a new Security that reflects the changed terms.

                  SECTION  9.05.  Trustee to Sign  Amendments,  Etc. The Trustee
shall be entitled to receive,  and shall be fully  protected in relying upon, an
Opinion of Counsel  stating that the execution of any  amendment,  supplement or
waiver  authorized  pursuant to this Article Nine is  authorized or permitted by
this Indenture.  Subject to the preceding sentence,  the Trustee shall sign such
amendment, supplement or waiver if the same does not adversely affect the rights
of the Trustee. The Trustee may, but shall not be obligated to, execute any such
amendment, supplement or waiver that affects the Trustee's own rights, duties or
immunities under this Indenture or otherwise.

                  SECTION  9.06.  Conformity  with Trust  Indenture  Act.  Every
supplemental  indenture  executed pursuant to this Article Nine shall conform to
the requirements of the TIA as then in effect.





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                                       71

                                   ARTICLE TEN

                                  SUBORDINATION

                  SECTION 10.01.  Securities Subordinate to Senior Indebtedness.
The Company and the Trustee each covenants and agrees,  and each Holder,  by its
acceptance of a Security,  likewise  covenants and agrees,  that all  Securities
shall be  issued  subject  to the  subordination  provisions  contained  in this
Article Ten, and each Holder of a Security,  whether upon original issue or upon
transfer,  assignment  or exchange  thereof,  accepts and agrees that the Senior
Subordinated  Obligations shall be, to the extent and in the manner set forth in
this  Article  Ten,  subordinated  in right of payment  and subject to the prior
payment in full,  in cash or cash  equivalents,  of all  amounts  payable  under
Senior Indebtedness  including,  without limitation,  the Company's  obligations
under the Designated Senior Indebtedness and any interest accruing subsequent to
an event specified in Sections 6.01(f) and 6.01(g), whether or not such interest
is an allowed  claim  enforceable  against  the debtor  under the United  States
Bankruptcy Code. The Securities are pari passu with the Convertible Notes.

                  SECTION   10.02.   No   Payment  on   Securities   in  Certain
Circumstances.  (a) No direct or indirect payment by or on behalf of the Company
of any Senior  Subordinated  Obligations,  whether  pursuant to the terms of the
Securities or upon  acceleration or otherwise,  shall be made if, at the time of
such payment, there exists a default in the payment of all or any portion of the
obligations  on any Senior  Indebtedness,  and such default  shall not have been
cured or waived, or the benefits of this sentence waived by or on behalf of, the
holders of such Senior Indebtedness.

                  (b) In addition,  during the continuance of any other event of
default with respect to any Designated Senior Indebtedness pursuant to which the
maturity  thereof  may be  accelerated,  upon  receipt by the Trustee of written
notice  from  the  trustee  or  other  representative  for the  holders  of such
Designated  Senior  Indebtedness  (or the  holders  of at  least a  majority  in
principal amount of such Designated Senior  Indebtedness then  outstanding),  no
payment of Senior  Subordinated  Obligations  may be made by or on behalf of the
Company upon or in respect of the Securities  for a period (a "Payment  Blockage
Period")  commencing  on the date of receipt of such  notice and ending 159 days
thereafter  (unless,  in each  case,  such  Payment  Blockage  Period  shall  be
terminated  by written  notice to the  Trustee  from such  trustee  of, or other
representatives  for, such holders).  Not more than one Payment  Blockage Period
may be  commenced  with  respect  to the  Securities  during  any  period of 360
consecutive  days.  Notwithstanding  anything in this Indenture to the contrary,
there must be 180  consecutive  days in any  360-day  period in which no Payment
Blockage Period is in effect. No event of default that existed or was continuing
(it being acknowledged that



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                                       72

any  subsequent  action that would give rise to an event of default  pursuant to
any  provision  under  which an  event  of  default  previously  existed  or was
continuing shall constitute a new event of default for this purpose) on the date
of  the  commencement  of  any  Payment  Blockage  Period  with  respect  to the
Designated Senior Indebtedness initiating such Payment Blockage Period shall be,
or shall be made, the basis for the  commencement  of a second Payment  Blockage
Period by the  representative  for, or the holders  of, such  Designated  Senior
Indebtedness,  whether or not within a period of 360  consecutive  days,  unless
such event of  default  shall have been cured or waived for a period of not less
than 90 consecutive days.

                  (c) In the event  that,  notwithstanding  the  foregoing,  any
payment  shall be  received  by the  Trustee or any Holder and the  Trustee  has
received  notice  pursuant to Section  10.12 that such payment is  prohibited by
paragraphs (a) and (b) of this Section 10.02,  the Trustee shall promptly notify
the holders of the Senior Indebtedness  identified to the Trustee by the Company
as being  holders of Senior  Indebtedness  of such  prohibited  payment and such
payment  shall be held in trust for the  benefit  of,  and shall be paid over or
delivered  to,  the  holders  of  Senior   Indebtedness   or  their   respective
representatives,  or to the trustee or trustees under any indenture  pursuant to
which any of such Senior  Indebtedness may have been issued, as their respective
interests may appear,  but only to the extent that, upon notice from the Trustee
to the  holders of Senior  Indebtedness  that such  prohibited  payment has been
made,  the  holders  of the  Senior  Indebtedness  (or their  representative  or
representatives  or a trustee) within 30 days of receipt of such notice from the
Trustee,  notify  the  Trustee of the  amounts  then due and owing on the Senior
Indebtedness,  if any,  and only the  amounts  specified  in such  notice to the
Trustee shall be paid to the holders of Senior Indebtedness and any excess above
such amounts due and owing on Senior Indebtedness shall be paid to the Holders.

               SECTION 10.03.  Payment Over of Proceeds Upon Dissolution,  Etc..
(a) Upon any payment or  distribution  of assets or securities of the Company of
any  kind or  character,  whether  in cash,  property  or  securities,  upon any
dissolution or winding up or total or partial  liquidation or  reorganization of
the Company,  whether  voluntary or involuntary  or in  bankruptcy,  insolvency,
receivership  or other  proceedings,  all  amounts due or to become due upon all
Senior  Indebtedness  (including any interest accruing subsequent to an event of
bankruptcy, whether or not such interest is an allowed claim enforceable against
the debtor under the United States Bankruptcy Code) shall first be paid in full,
in cash or cash equivalents, before the Holders of the Securities or the Trustee
on behalf of the  Holders of the  Securities  shall be  entitled  to receive any
payment by the  Company on account of Senior  Subordinated  Obligations,  or any
payment to acquire any of the  Securities for cash,  property or securities,  or
any  distribution  with  respect  to the  Securities  of any cash,  property  or
securities. Before


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                                       73

any payment may be made by, or on behalf of, the Company of any Securities  upon
any such dissolution, winding up, liquidation or reorganization,  any payment or
distribution  of assets or  securities  of the Company of any kind or character,
whether in cash, property or securities,  to which the Holders of the Securities
or the Trustee on behalf of the Holders of the Securities would be entitled, but
for the  subordination  provisions  of this  Article  Ten,  shall be made by the
Company or by any receiver, trustee in bankruptcy, liquidating trustee, agent or
other similar  Person making such payment or  distribution  or by the Holders of
the Securities or the Trustee if received by them or it, directly to the holders
of the  Senior  Indebtedness  (pro  rata) to such  holders  on the  basis of the
respective  amounts  of  Senior  Indebtedness  held by such  holders)  or  their
representatives as their respective interests appear, to the extent necessary to
pay all such Senior  Indebtedness  in full, in cash or cash  equivalents,  after
giving effect to any concurrent  payment,  distribution or provision therefor to
or for the holders of such Senior Indebtedness.

                  (b) To the extent any payment of Senior Indebtedness  (whether
by or on behalf of the Company,  as proceeds of security or  enforcement  of any
right of setoff or otherwise) is declared to be fraudulent or preferential,  set
aside or required to be paid to any receiver, trustee in bankruptcy, liquidating
trustee,  agent  or other  similar  Person  under  any  bankruptcy,  insolvency,
receivership,  fraudulent  conveyance  or similar  law,  then if such payment is
recovered by, or paid over to, such receiver, trustee in bankruptcy, liquidating
trustee,  agent or other similar Person, the Senior Indebtedness or part thereof
originally  intended  to be  satisfied  shall be  deemed  to be  reinstated  and
outstanding as if such payment had not occurred. To the extent the obligation to
repay  any  Senior  Indebtedness  is  declared  to be  fraudulent,  invalid,  or
otherwise set aside under any bankruptcy, insolvency,  receivership,  fraudulent
conveyance or similar law, then the obligation so declared  fraudulent,  invalid
or otherwise  set aside (and all other  amounts that would come due with respect
thereto  had  such  obligation  not been so  affected)  shall  be  deemed  to be
reinstated  and  outstanding  as Senior  Indebtedness  for all  purposes of this
Indenture as if such declaration, invalidity or setting aside had not occurred.

                  (c) In the event that, notwithstanding the foregoing provision
prohibiting such payment or distribution,  any payment or distribution of assets
of  the  Company  of any  kind  or  character,  whether  in  cash,  property  or
securities,  shall be  received by the Trustee or any Holder at a time when such
payment  or  distribution  is  prohibited  by  Section  10.03(a)  and before all
obligations in respect of Senior  Indebtedness are paid in full, in cash or cash
equivalents,  such payment or  distribution  shall be received and held in trust
for the  benefit  of, and shall be paid over or  delivered  to,  the  holders of
Senior  Indebtedness  (pro rata to such  holders on the basis of the  respective
amount of Senior Indebtedness held by such holders) or their representatives,



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                                       74

or to the trustee under the Senior Note Indenture, or to the trustee or trustees
under any other  indenture  pursuant to which any such Senior  Indebtedness  may
have been issued, as their respective  interests appear,  for application to the
payment  of  Senior   Indebtedness   remaining  unpaid  until  all  such  Senior
Indebtedness  has been paid in full, in cash or cash  equivalents,  after giving
effect to any concurrent  payment,  distribution or provision therefor to or for
the holders of such Senior Indebtedness.

                  (d) For  purposes  of this  Section  10.03,  the words  "cash,
property or securities" shall not be deemed to include, so long as the effect of
this  clause  is not to  cause  the  Securities  to be  treated  in any  case or
proceeding or similar event  described in this Section 10.03 as part of the same
class of claims as the  Senior  Indebtedness  or any class of claims  pari passu
with,  or senior to, the Senior  Indebtedness  for any payment or  distribution,
securities  of the Company or any other  corporation  provided  for by a plan of
reorganization  or readjustment  that are  subordinated,  at least to the extent
that the Securities are subordinated,  to the payment of all Senior Indebtedness
then outstanding;  provided, however, that (i) if a new corporation results from
such  reorganization  or  readjustment,  such  corporation  assumes  the  Senior
Indebtedness  and (ii) the rights of the holders of the Senior  Indebtedness are
not,  without the consent of such  holders,  altered by such  reorganization  or
readjustment.  The  consolidation  of the  Company  with,  or the  merger of the
Company with or into,  another  corporation or the liquidation or dissolution of
the Company following the sale, conveyance, transfer, lease or other disposition
of all or  substantially  all of its property and assets to another  corporation
upon the terms and  conditions  provided  in Article  Five shall not be deemed a
dissolution,  winding up, liquidation or reorganization for the purposes of this
Section 10.03 if such other corporation shall, as a part of such  consolidation,
merger, sale, conveyance,  transfer, lease or other disposition, comply with the
conditions provided in Article Five.

                  SECTION 10.04.  Subrogation of Holders to Rights of Holders of
Senior Indebtedness. Upon the payment in full of all Senior Indebtedness in cash
or cash equivalents, the Holders of Securities shall be subrogated to the rights
of the holders of Senior  Indebtedness to receive  payments or  distributions of
cash,  property or  securities  of the Company made on such Senior  Indebtedness
until the principal of, premium, if any, and interest on the Securities shall be
paid in full,  and no such  payments or  distributions  to the holders of Senior
Indebtedness  (or any trustee  therefor) of any cash,  property or securities of
the  Company  to which the  Holders  or the  Trustee  on their  behalf  would be
entitled except for the provisions of this Article Ten, and no payment  pursuant
to the provisions of this Article Ten to the holders of Senior  Indebtedness  by
Holders  or the  Trustee on their  behalf  shall be, as among the  Trustee,  the
Company,  its creditors other than the holders of Senior  Indebtedness,  and the
Holders, deemed to be a payment by the Company to or on account of the Senior



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                                       75

Indebtedness,  it being  understood  that the provisions of this Article Ten are
and are intended  solely for the purpose of defining the relative rights of, the
Holders,  on the one hand,  and the holders of the Senior  Indebtedness,  on the
other hand.

                  If any  payment or  distribution  to which the  Holders  would
otherwise  have been  entitled but for the  provisions of this Article Ten shall
have been  applied,  pursuant  to the  provisions  of this  Article  Ten, to the
payment of all amounts  payable  under Senior  Indebtedness,  then,  and in such
case,  the Holders  shall be entitled to receive from the holders of such Senior
Indebtedness  any payments or  distributions  received by such holders of Senior
Indebtedness  in excess of the amount  required to make payment in full, in cash
or cash equivalents, of such Senior Indebtedness of such holders.

                  SECTION 10.05.  Obligations of Company Unconditional.  Nothing
contained  in  this  Article  Ten  or  elsewhere  in  this  Indenture  or in the
Securities is intended to or shall impair,  as among the Company,  its creditors
other than the holders of Senior  Indebtedness,  and the Holders, the obligation
of the Company,  which is unconditional and absolute,  to pay to the Holders the
principal of,  premium,  if any, and interest on the  Securities as and when the
same shall become due and payable in accordance  with their terms,  or to affect
the relative  rights of the Holders and  creditors of the Company other than the
holders of the Senior Indebtedness, nor shall anything herein or therein prevent
the Trustee or any Holder from  exercising all remedies  otherwise  permitted by
applicable  law upon a Default  or an Event of  Default  under  this  Indenture,
subject to the rights,  if any, under this Article Ten, of the holders of Senior
Indebtedness in respect of cash,  property or securities of the Company received
upon the exercise of any such remedy.

                  Without  limiting the  generality  of the  foregoing,  nothing
contained  in this  Article  Ten will  restrict  the right of the Trustee or the
Holders to take any action to declare the Securities to be due and payable prior
to their  Stated  Maturity  pursuant to Section  6.01 or to pursue any rights or
remedies hereunder; provided, however, that all Senior Indebtedness then due and
payable or  thereafter  declared  to be due and  payable  shall first be paid in
full,  in cash or cash  equivalents,  before  the  Holders  or the  Trustee  are
entitled to receive any direct or  indirect  payment  from the Company of Senior
Subordinated Obligations.

                  SECTION  10.06.  Payments  May Be Made  Prior to  Dissolution.
Nothing  contained in this Article Ten or elsewhere in this  Indenture or in any
of the  Securities  (a) shall prevent the Company at any time,  except under the
conditions  described  in Article  Six or Section  10.02 or 10.03,  from  making
payments of or on account of the Senior Subordinated  Obligations to the Holders
entitled thereto or from



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                                       76

depositing any moneys with the Trustee for such  payments,  or (b) shall prevent
the  application  by the Trustee (or any Paying Agent other than the Company) of
any moneys  deposited  with it  hereunder to the payment of or on account of the
Senior  Subordinated  Obligations,  if the Trustee or such Paying Agent,  as the
case may be, did not,  at least two  business  days prior to the date upon which
such payment becomes due and payable, have written notice as provided in Section
10.02 or 10.12 of any event prohibiting the making of such payment.  The Company
shall give prompt written notice to the Trustee of any dissolution,  winding up,
liquidation or reorganization of the Company.

                  SECTION 10.07. No Waiver of Subordination Provisions. No right
of any  present or future  holder of any Senior  Indebtedness  of the Company to
enforce the  subordination  provisions  of this Article Ten shall at any time in
any way be  prejudiced  or  impaired by any act or failure to act on the part of
the Company or by any act or failure to act, in good faith,  by any such holder,
or by any noncompliance by the Company with the terms,  provisions and covenants
of this Indenture,  regardless of any knowledge thereof any such holder may have
or be otherwise charged with. The provisions of this Article Ten are intended to
be for the  benefit  of, and shall be  enforceable  directly  by, the holders of
Senior Indebtedness.

                  SECTION  10.08.  Authorization  to Trustee  to Take  Action to
Effectuate  Subordination.  Each Holder of Securities by his acceptance  thereof
authorizes  and  directs the Trustee on his behalf to take such action as may be
necessary or appropriate  to effectuate,  as between the Holders and the holders
of the Senior  Indebtedness,  the  subordination as provided in this Article Ten
and appoints the Trustee his attorney-in-fact for any and all such purposes.

                  SECTION 10.09. Senior Indebtedness May Be Renewed or Extended,
Etc.  Without  in any way  limiting  the  generality  of  Section  10.07 of this
Indenture,  the holders of Senior Indebtedness may, at any time and from time to
time,  without the consent of or notice to the Trustee or the  Holders,  without
incurring  responsibility  to the Holders and without impairing or releasing the
subordination  provided in this Article Ten or the obligations  hereunder of the
Holders  to the  holders  of  Senior  Indebtedness,  do any  one or  more of the
following:  (a) change the manner,  place or terms of payment or extend the time
of  payment  of,  or renew  or  alter,  Senior  Indebtedness  or any  instrument
evidencing  the  same  or any  agreement  under  which  Senior  Indebtedness  is
outstanding or secured; (b) sell,  exchange,  release or otherwise deal with any
property  pledged,  mortgaged or otherwise  securing  Senior  Indebtedness;  (c)
release  any  Person  liable  in  any  manner  for  the   collection  of  Senior
Indebtedness; and (d) exercise or refrain from exercising any rights against the
Company and any other Person.



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                                       77

                  SECTION 10.10. Trustee to Have No Fiduciary Duty to Holders of
Senior  Indebtedness.  With respect to the holders of Senior  Indebtedness,  the
Trustee  undertakes  to  perform or to observe  only such of its  covenants  and
obligations  as are  specifically  set forth in this Article Ten, and no implied
covenants  or  obligations  with  respect to the holders of Senior  Indebtedness
shall be read into this Indenture against the Trustee.  The Trustee shall not be
deemed to owe any fiduciary duty to the holders of Senior  Indebtedness  and the
Trustee shall not be liable to any holder of Senior Indebtedness if it shall pay
over or deliver to the Holders, the Company or any other Person moneys or assets
to which any holder of Senior  Indebtedness  shall be entitled by virtue of this
Article Ten or otherwise.

                  SECTION   10.11.   Rights  of  Trustee  as  Holder  of  Senior
Indebtedness.  The  Trustee  shall be  entitled  to all rights set forth in this
Article Ten in respect of any Senior Indebtedness at any time held by it, to the
same  extent as any other  holder of Senior  Indebtedness  and  nothing  in this
Indenture shall be construed to deprive the Trustee of any of its rights as such
holder.

                  SECTION  10.12.  Notice to  Trustee.  The  Company  shall give
prompt  written  notice to the  Trustee of any fact known to the  Company  which
would  prohibit  the  making of any  payment  of moneys to or by the  Trustee in
respect  of  Securities  pursuant  to the  provisions  of  this  Article  Ten or
otherwise. The Trustee shall not be charged with knowledge of the existence of a
default or event of default with respect to the Senior Indebtedness or any other
facts that would  prohibit the making of any payment to or by the Trustee unless
and until the Trustee  shall have  received  written  notice  thereof  mailed or
delivered to the Trustee at its  Corporate  Trust Office signed by an Officer of
the Company, any holder or representative of any class of Senior Indebtedness or
any  trustee or agent  therefor;  and prior to the  receipt of any such  written
notice, the Trustee shall,  subject to Article Seven, be entitled to assume that
no such facts exist;  provided,  however,  that,  if the Trustee  shall not have
received the notice  provided  for in this  Section  10.12 at least two Business
Days prior to the date upon  which,  by the terms of this  Indenture,  any money
shall become payable for any purpose (including, without limitation, the payment
of the  principal  or,  premium,  if any,  or interest  on any  Security),  then
notwithstanding  anything  herein to the  contrary,  the Trustee shall have full
power and  authority to receive any money from the Company and to apply the same
to the  purpose for which they were  received,  and shall not be affected by any
notice to the  contrary  that may be  received by it on or after such prior date
except for an acceleration of the Securities prior to such application.  Nothing
contained in this  Section  10.12 shall limit the right of the holders of Senior
Indebtedness  to recover  payments as  contemplated  by this  Article  Ten.  The
foregoing shall not apply if the Paying Agent is the Company.




<PAGE>

                                       78

                  The Trustee shall be entitled to rely on the delivery to it of
a written  notice by a Person  representing  himself or itself to be a holder of
any Senior Indebtedness (or a trustee on behalf of, or other  representative of,
such  holder) to  establish  that such notice has been given by a holder of such
Senior Indebtedness or a trustee or representative on behalf of any such holder.
In the event that the Trustee  determines in good faith that further evidence is
required  with  respect  to the  right  of any  Person  as a  holder  of  Senior
Indebtedness  to  participate  in any payment or  distribution  pursuant to this
Article  Ten,  the Trustee may  request  such Person to furnish  evidence to the
reasonable  satisfaction of the Trustee as to the amount of Senior  Indebtedness
held by such Person,  the extent to which such Person is entitled to participate
in such payment or  distribution  and any other facts pertinent to the rights of
such Person under this Article Ten.

                  SECTION  10.13.  Reliance on Judicial  Order or Certificate of
Liquidating  Agent.  Upon any payment or  distribution  of assets or  securities
referred to in this Article  Ten, the Trustee and the Holders  shall be entitled
to rely upon any order or decree made by any court of competent  jurisdiction in
which  bankruptcy,   dissolution,  winding  up,  liquidation  or  reorganization
proceedings  are pending,  or upon a  certificate  of the  receiver,  trustee in
bankruptcy,  liquidating  trustee,  agent or other  similar  Person  making such
payment or  distribution,  delivered  to the  Trustee or to the  Holders for the
purpose  of   ascertaining   the  persons   entitled  to   participate  in  such
distribution,  the holders of the Senior  Indebtedness and other Indebtedness of
the Company,  the amount thereof or payable thereon,  the amount or amounts paid
or distributed  thereon and all other facts pertinent thereto or to this Article
Ten.

                  SECTION 10.14.  Not to Prevent Events of Default.  The failure
to make a payment on account of principal  of,  premium,  if any, or interest on
the  Securities  by  reason of any  provision  of this  Article  Ten will not be
construed as preventing the occurrence of an Event of Default.

                  SECTION 10.15.  Trustee's Compensation Not  Prejudiced.
Nothing in this Article Ten will apply to amounts due to the Trustee pursuant to
other sections of this Indenture.




<PAGE>

                                       79

                                 ARTICLE ELEVEN

                                  MISCELLANEOUS

                  SECTION  11.01.  Trust  Indenture Act of 1939.  This Indenture
shall be subject to the  provisions of the TIA that are required to be a part of
this  Indenture  and  shall,  to the  extent  applicable,  be  governed  by such
provisions.

                  SECTION 11.02.  Notices.  Any notice or communication shall be
sufficiently given if in writing and delivered in person or mailed by first
class mail addressed as follows:

                  if to the Company:

                  WinStar Communications, Inc.
                  230 Park Avenue
                  New York, New York 10169
                  Attention: General Counsel


                  if to the Trustee:

                  United States Trust Company of New York
                  114 West 47th Street
                  New York, New York 10036-1532
                  Attention:  Corporate Trust Division

                  The  Company  or  the  Trustee  by  notice  to the  other  may
designate   additional  or  different   addresses  for  subsequent   notices  or
communications.

                  Any notice or communication mailed to a Holder shall be mailed
at the Company's  expense to such Holder's address as it appears on the Security
Register by first class mail and shall be  sufficiently  given to such Holder if
so mailed within the time prescribed. Copies of any such communication or notice
to a Holder shall also be mailed to the Trustee and each Agent at the same time.

                  Failure to mail a notice or  communication  to a Holder or any
defect in it shall not affect its  sufficiency  with  respect to other  Holders.
Except for a notice to the Trustee,  which is deemed  given only when  received,
and except as otherwise provided in this Indenture, if a notice or communication
is mailed in the manner provided in this Section 11.02 it is duly given, whether
or not the addressee receives it.



<PAGE>

                                       80

                  Where this Indenture  provides for notice in any manner,  such
notice may be waived in writing by the Person  entitled to receive  such notice,
either  before or after the event,  and such waiver shall be the  equivalent  of
such notice. Waivers of notice by Holders shall be in writing and filed with the
Trustee,  but such filing shall not be a condition  precedent to the validity of
any action taken in reliance upon such waiver.

                  In case by reason of the suspension of regular mail service or
by reason of any other  cause it shall be  impracticable  to give such notice by
mail,  then such  notification as shall be made with the approval of the Trustee
shall constitute a sufficient notification for every purpose hereunder.

                  SECTION  11.03.  Certificate  and  Opinion  as  to  Conditions
Precedent. Upon any request or application by the Company to the Trustee to take
any action under this Indenture, the Company shall furnish to the Trustee:

               (i) an Officers'  Certificate stating that, in the opinion of the
          signers,  all  conditions  precedent,  if  any,  provided  for in this
          Indenture relating to the proposed action have been complied with; and

               (ii) an Opinion of Counsel  stating  that, in the opinion of such
          Counsel, all such conditions precedent have been complied with.

                  SECTION 11.04.  Statements Required in Certificate or Opinion.
Each  certificate  or opinion  with  respect to  compliance  with a condition or
covenant provided for in this Indenture shall include:

               (i) a statement  that each person  signing  such  certificate  or
          opinion has read such covenant or condition and the definitions herein
          relating thereto;

               (ii)  a  brief  statement  as to  the  nature  and  scope  of the
          examination  or  investigation  upon  which the  statement  or opinion
          contained in such certificate or opinion is based;

               (iii) a statement  that,  in the opinion of each such person,  he
          has made such  examination or  investigation as is necessary to enable
          him to express an informed  opinion as to whether or not such covenant
          or condition has been complied with; and

               (iv) a  statement  as to whether or not,  in the  opinion of each
          such  person,  such  condition  or covenant  has been  complied  with;
          provided, however, that,



<PAGE>

                                       81

         with  respect to matters of fact,  an Opinion of Counsel may rely on an
         Officers' Certificate or certificates of public officials.

                  SECTION  11.05.  Rules by Trustee,  Paying Agent or Registrar.
The Trustee may make reasonable  rules for action by or at a meeting of Holders.
The Paying Agent or Registrar may make reasonable rules for its functions.

                  SECTION  11.06.  Payment Date Other Than a Business Day. If an
Interest Payment Date,  Redemption Date,  Change of Control Payment Date, Excess
Proceeds Payment Date, Stated Maturity or date of maturity of any Security shall
not be a Business  Day,  then  payment of  principal  of,  premium,  if any,  or
interest  on such  Security,  as the case may be, need not be made on such date,
but may be made on the next  succeeding  Business  Day with the same  force  and
effect as if made on the Interest Payment Date,  Change of Control Payment Date,
Excess Proceeds  Payment Date, or Redemption  Date, or at the Stated Maturity or
date of maturity of such  Security;  provided,  however,  that no interest shall
accrue  for the period  from and after such  Interest  Payment  Date,  Change of
Control Payment Date,  Excess Proceeds  Payment Date,  Redemption  Date,  Stated
Maturity or date of maturity, as the case may be.

                  SECTION   11.07.   Governing   Law.  This  Indenture  and  the
Securities shall be governed by the laws of the State of New York, excluding (to
the extent  permissible by law) any rule of law that would cause the application
of the laws of any jurisdiction other than the State of New York.

                  SECTION 11.08. No Adverse  Interpretation of Other Agreements.
This  Indenture  may not be used to interpret  another  indenture,  loan or debt
agreement of the Company or any Subsidiary of the Company.  Any such  indenture,
loan or debt agreement may not be used to interpret this Indenture.

                  SECTION 11.09. No Recourse Against Others. No recourse for the
payment  of the  principal  of,  premium,  if  any,  or  interest  on any of the
Securities,  or for any claim based thereon or otherwise in respect thereof, and
no recourse under or upon any  obligation,  covenant or agreement of the Company
contained  in this  Indenture,  or in any of the  Securities,  or because of the
creation  of any  Indebtedness  represented  thereby,  shall be had  against any
incorporator, stockholder, officer, director, employee or controlling person, as
such,  of the  Company or of any  successor  Person  thereof  in such  capacity;
provided, however, that the foregoing shall not affect the Company's obligations
with respect to the Equipment Note Guarantee; it being expressly understood that
all such  liability is hereby  expressly  waived and released as a condition of,
and as  consideration  for, the execution of this Indenture and the issue of the
Securities.



<PAGE>

                                       82

                  SECTION 11.10. Successors.  All  agreements of  the Company in
this Indenture and the Securities  shall bind its successors.  All agreements of
the Trustee in this Indenture shall bind its successors.

                  SECTION 11.11. Duplicate  Originals. The parties  may sign any
number of copies of this Indenture.  Each signed copy shall be an original,  but
all of them together represent the same agreement.

                  SECTION  11.12.  Separability.  In case any  provision in this
Indenture or in the Securities shall be invalid,  illegal or unenforceable,  the
validity,  legality and enforceability of the remaining  provisions shall not in
any way be affected or impaired thereby.

                  SECTION 11.13. Table of Contents,  Headings, Etc. The Table of
Contents,  Cross-Reference  Table and  headings of the  Articles and Sections of
this Indenture have been inserted for  convenience of reference only, are not to
be  considered  a part hereof and shall in no way modify or restrict  any of the
terms and provisions hereof.

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Indenture to be duly executed, all as of the date first written above.


WINSTAR COMMUNICATIONS, INC.


By:__________________________
     Name:
     Title:



UNITED STATES TRUST COMPANY
OF NEW YORK


By:__________________________
     Name:
     Title:




<PAGE>


                                      EA-1
                                                                     EXHIBIT A


                [FACE OF EXCHANGE NOTE OR PRIVATE EXCHANGE NOTE]

*/
**/
***/
                          WINSTAR COMMUNICATIONS, INC.

             15% Senior Subordinated Deferred Interest Note Due 2007

                                                              CUSIP _________
No.                                                                $_________

                  WINSTAR  COMMUNICATIONS,  INC.,  a Delaware  corporation  (the
"Company",  which term  includes any successor  under the Indenture  hereinafter
referred  to),  for  value  received,  promises  to pay to  __________  , or its
registered assigns,  the principal sum of  ___________________  ($__________) on
March 1, 2007.

                  SemiAnnual Interest Accrual Date: March 1 and September 1,
commencing March 1, 1998.

                  Interest Payment Dates:  March 1 and September 1, commencing
September 1, 2002.

                  Regular Record Dates:  February 15 and August 15.

                  Reference  is hereby  made to the further  provisions  of this
Note set forth on the reverse  hereof,  which further  provisions  shall for all
purposes have the same effect as if set forth at this place.

- ------------------
*/ If the  Security  is to be issued in global  form add the  Global  Securities
Legend from Exhibit 1 to the Rule  144A/Regulation S Appendix and the attachment
from such Exhibit 1 caption "[TO BE ATTACHED TO GLOBAL  SECURITIES]--SCHEDULE OF
INCREASES OR DECREASES IN GLOBAL SECURITY".

**/ If the Security is a Private Exchange  Security issued in a Private Exchange
to an Initial Purchaser holding an unsold portion of its initial allotment,  add
the Restricted  Securities  Legend from Exhibit 1 to the Rule  144A/Regulation S
Appendix  and  replace  the  Assignment  Form  included  in this  Exhibit A with
Assignment Form included in such Exhibit 1.

***/  Add  the  Original  Issue  Discount  Legend  from  Exhibit  1 to the  Rule
144A/Regulation S Appendix..



<PAGE>


                                      EA-2


         IN WITNESS  WHEREOF,  the  Company  has  caused  this Note to be signed
manually or by facsimile by its duly authorized officer.

Date:                                       WINSTAR COMMUNICATIONS, INC.


                                            By:
                                              Name:
                                             Title:


                (Form of Trustee's Certificate of Authentication)

                This is one of the 15%  Senior  Subordinated  Deferred  Interest
Notes Due 2007 described in the within-mentioned Indenture.


                                            UNITED STATES TRUST COMPANY
                                            OF NEW YORK, as Trustee
Date:

                                            By:
                                               Authorized Signatory




<PAGE>

                                      EA-3


            [REVERSE SIDE OF EXCHANGE NOTE OR PRIVATE EXCHANGE NOTE]

                          WINSTAR COMMUNICATIONS, INC.

             15% Senior Subordinated Deferred Interest Note Due 2007

1.  Principal and Interest.

                  The Company  will pay the  principal  of this Note on March 1,
2007.

                  The Company promises to pay interest on the Accumulated Amount
of this Note on each Interest  Payment Date, as set forth below, at the rate per
annum shown above.

                  Until  March 1, 2002,  interest  on the Notes will accrue at a
rate of 15% per annum and be compounded semiannually on each SemiAnnual Interest
Accrual Date, but (except as provided  below) will not be payable in cash.  From
and after March 1, 2002, interest on the Accumulated Amount of each Note will be
payable  semiannually  (to the  holders  of  record of the Notes at the close of
business on the  February 15 or August 15  immediately  preceding  the  relevant
Interest  Payment Date) on each Interest Payment Date,  commencing  September 1,
2002.

                  "Accumulated  Amount"  means,  as of any date (the  "Specified
Date"), the amount provided below for each $1,000 principal amount of Notes.

                  (i) If the Specified Date occurs on one of the following dates
         (each, a "SemiAnnual Interest Accrual Date"), the Accumulated Amount of
         this Note will equal the amount set forth  below for such Note for such
         SemiAnnual Interest Accrual Date:

SemiAnnual Interest Accrual Date                        Accumulated Amount

March 1, 1998...........................                     $1060.000
September 1, 1998.......................                      1139.500
March 1, 1999...........................                      1224.963
September 1, 1999.......................                      1316.835
March 1, 2000...........................                      1415.597
September 1, 2000.......................                      1521.767
March 1, 2001...........................                      1635.900
September 1, 2001.......................                      1758.592
March 1, 2002...........................                      1890.486





<PAGE>

                                      EA-4

                  (ii) if the Specified Date occurs before the first  SemiAnnual
         Interest Accrual Date, the Accumulated Amount will equal the sum of (A)
         $1,000 and (B) an amount  equal to the  product of (1) the  Accumulated
         Amount  for the first  SemiAnnual  Interest  Accrual  Date less  $1,000
         multiplied  by (2) a fraction,  the numerator of which is the number of
         days elapsed from the Issue Date to the Specified Date, using a 360-day
         year of  twelve  30-day  months,  and the  denominator  of which is the
         number  of days from the Issue  Date to the first  SemiAnnual  Interest
         Accrual Date, using a 360-day year of twelve 30-day months;

                  (iii) if the  Specified  Date occurs  between  two  SemiAnnual
         Interest  Accrual Dates,  the Accumulated  Amount will equal the sum of
         (A) the  Accumulated  Amount for the SemiAnnual  Interest  Accrual Date
         immediately  preceding  such  Specified Date and (B) an amount equal to
         the product of (1) the Accumulated Amount for the immediately following
         SemiAnnual  Interest  Accrual Date less the Accumulated  Amount for the
         immediately  preceding  SemiAnnual  Interest Accrual Date multiplied by
         (2) a fraction,  the  numerator  of which is the number of days elapsed
         from the immediately  preceding SemiAnnual Interest Accrual Date to the
         Specified Date,  using a 360-day year or twelve 30-day months,  and the
         denominator of which is 180; or

                  (iv) if the  Specified  Date occurs after the last  SemiAnnual
         Interest  Accrual Date, the Accumulated  Amount of this Note will equal
         $1890.486.

                  Notwithstanding  anything  to  the  contrary  above,  (i) if a
Registration  Default (as defined in the Registration  Rights Agreement) occurs,
additional  interest  will  accrue on this Note from and  including  the date on
which any such Registration  Default shall occur to but excluding the earlier of
(x) the date on which all Registration Defaults have been cured and (y) the date
on which all Notes become freely  transferable  by Holders other than Affiliates
of the Company  without  further  registration  under the  Securities  Act. Such
additional  interest will be payable in cash semiannually in arrears,  at a rate
per annum equal to .50% of the  Accumulated  Amount of the Notes on the relevant
additional  interest  payment date. Such additional  interest will be payable on
each SemiAnnual  Interest Accrual Date or Interest Payment Date, as the case may
be,  commencing with the first  SemiAnnual  Interest  Accrual Date following the
applicable  Registration  Default.  Payments of additional interest on the Notes
will be made to the Holders of Notes on the Regular Record Date (or, if there is
no  Regular  Record  Date,  the date 15 days prior to such  SemiAnnual  Interest
Accrual Date)  immediately  preceding such SemiAnnual  Interest  Accrual Date or
Interest Payment Date.

                  The  Company  shall pay  interest  on  overdue  principal  and
premium, if any, and (to the extent lawful) interest on overdue  installments of
interest.




<PAGE>


                                      EA-5

2.  Method of Payment.

                  The Company will pay principal as provided  above and interest
(except defaulted  interest) on the Accumulated  Amount of the Notes as provided
above on each March 1 and  September 1,  commencing  September  1, 2002,  to the
persons who are Holders (as reflected in the Security  Register) at the close of
business on the  February 15 or August 15  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if the  Note  is  cancelled  on
registration  of transfer or  registration  of exchange  after such record date;
provided,  however, that, with respect to the payment of principal,  the Company
will not make payment to the Holder unless this Note is  surrendered to a Paying
Agent.

                  The Company  will pay  principal  and interest in money of the
United  States that at the time of payment is legal tender for payment of public
and private debts. Payments in respect of the Notes represented by a global Note
(including  principal,  premium and  interest)  will be made by wire transfer of
immediately  available funds to the accounts  specified by The Depository  Trust
Company.  The Company will make all payments in respect of a  certificated  Note
(including principal, premium and interest) by mailing a check to the registered
address  of  each  Holder  thereof;  provided,   however,  that  payments  on  a
certificated  Note  will  be  made by wire  transfer  to a U.S.  dollar  account
maintained  by the payee with a bank in the United  States if such Holder elects
payment by wire transfer by giving  written  notice to the Trustee or the Paying
Agent to such effect  designating such account no later than 30 days immediately
preceding  the  relevant due date for payment (or such other date as the trustee
may accept in its discretion).

3.  Paying Agent and Registrar.

                  Initially,  United  States  Trust  Company  of New  York  (the
"Trustee") will act as  authenticating  agent,  Paying Agent and Registrar.  The
Company may change any authenticating  agent,  Paying Agent or Registrar without
notice.  The Company,  any Subsidiary or any Affiliate of any of them may act as
Paying Agent, Registrar or co-Registrar.

4.  Indenture.

                  The Company  issued the Notes under an  Indenture  dated as of
October  1,  1997  (the  "Indenture"),  between  the  Company  and the  Trustee.
Capitalized  terms herein are used as defined in the Indenture  unless otherwise
indicated.  The terms of the Notes  include  those stated in the  Indenture  and
those made part of the  Indenture by reference to the Trust  Indenture  Act. The
Notes are subject to all such terms,  and Holders are referred to the  Indenture
and the Trust  Indenture  Act for a statement  of all such terms.  To the extent
permitted by applicable law, in the event of any inconsistency between the terms
of this Note and the terms of the  Indenture,  the terms of the Indenture  shall
control.



<PAGE>


                                      EA-6



                  The Indenture limits the original  aggregate  principal amount
of the Notes to $100,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The  Notes  will not be  redeemable  prior  to March 1,  2002.
Thereafter,  the Notes will be redeemable,  at the Company's option, in whole at
any time or in part  from  time to time  upon not less  than 30 nor more than 60
days' prior notice mailed by  first-class  mail to each Holders' last address as
it  appears  in the  Security  Register,  at  the  following  Redemption  Prices
(expressed as a percentage of the Accumulated Amount of the Notes), plus accrued
and unpaid interest,  if any, on such Accumulated  Amount to the Redemption Date
(subject to the right of Holders of record on the relevant  Regular  Record Date
that is on or  prior  to the  Redemption  Date to  receive  interest  due on the
relevant  Interest  Payment  Date),  if  redeemed  during  the  12-month  period
commencing March 1 of the years set forth below:

                  Year                                      Redemption Price
                  2002                                        107.500%
                  2003                                        103.750
                  2004 and thereafter                         100.000

6.  Notice of Redemption.

                  Notice  of any  optional  redemption  will  be  mailed  by the
Company at least 30 days but not more than 60 days before a  Redemption  Date to
each  Holder of Notes to be  redeemed  at his last  address as it appears in the
Security  Register.  Notes in original  denominations  larger than $1,000 may be
redeemed  in  part;  provided,  however,  that  Notes  will  only be  issued  in
denominations of $1,000 principal amount or integral multiples  thereof.  On and
after the Redemption  Date,  interest  ceases to accrue on Notes (or portions of
Notes) called for redemption,  unless the Company defaults in the payment of the
Redemption Price.

7. Repurchase upon Change in Control.

                  Upon the occurrence of a Change of Control,  each Holder shall
have the right to require  the  repurchase  of its Notes by the  Company in cash
pursuant to the offer  described in the  Indenture at a purchase  price equal to
101% of the  Accumulated  Amount of such  Notes on such date of  purchase,  plus
accrued and unpaid interest,  if any, on such Accumulated  Amount to the date of
purchase (the "Change of Control Payment").

                  A notice of such  Change of Control  will be mailed  within 30
days after any Change of Control occurs to each Holder at his last address as it
appears in the Security Register.  Notes in original  denominations  larger than
$1,000 may be sold to the Company in



<PAGE>

                                      EA-7

part;  provided,  however,  that Notes will only be issued in  denominations  of
$1,000 principal amount at maturity or integral multiples thereof.  On and after
the  Change  of  Control  Payment  Date,  interest  ceases to accrue on Notes or
portions of Notes  surrendered  for purchase by the Company,  unless the Company
defaults in the payment of the Change of Control Payment.

8.  Denominations; Transfer; Exchange.

                  The  Notes  are  in   registered   form  without   coupons  in
denominations of $1,000 of principal amount and integral  multiples  thereof.  A
Holder may  register the  transfer or exchange of Notes in  accordance  with the
Indenture.  The Registrar may require a Holder,  among other things,  to furnish
appropriate  endorsements  and transfer  documents and to pay any taxes and fees
required by law or permitted by the  Indenture.  The Registrar need not register
the transfer or exchange of any Notes selected for redemption. Also, it need not
register  the transfer or exchange of any Notes for a period of 15 days before a
selection of Notes to be redeemed is made.

9.  Persons Deemed Owners.

                  A  Holder  shall  be  treated  as the  owner of a Note for all
purposes.

10.  Unclaimed Money.

                  If money for the  payment of  principal,  premium,  if any, or
interest remains  unclaimed for two years, the Trustee and the Paying Agent will
pay the money back to the Company at its request.  After that,  Holders entitled
to the money must look to the  Company for  payment,  unless an  applicable  law
designates  another  Person,  and all  liability  of the Trustee and such Paying
Agent with respect to such money shall cease.

11. Discharge Prior to Redemption or Maturity.

                  Subject to  certain  conditions,  the  Company at any time may
terminate  some or all of its  obligations  under the Notes and the Indenture if
the Company deposits with the Trustee money or U.S.  Government  Obligations for
the payment of principal and interest on the Notes to redemption or maturity, as
the case may be.

12.  Amendment; Supplement; Waiver.

                  Subject to certain exceptions,  the Indenture or the Notes may
be  amended  or  supplemented  with the  consent  of the  Holders  of at least a
majority in  principal  amount of the Notes then  outstanding,  and any existing
default or  compliance  with any provision may be waived with the consent of the
Holders of at least a majority in principal amount of the Notes



<PAGE>

                                      EA-8

then  outstanding.  Without notice to or the consent of any Holder,  the parties
thereto  may amend or  supplement  the  Indenture  or the Notes to,  among other
things, cure any ambiguity, defect or inconsistency and make any change that, in
the opinion of the Board of Directors of the Company,  does not  materially  and
adversely affect the rights of any Holder.

13.  Restrictive Covenants.

                  The Indenture  imposes  certain  limitations on the ability of
the Company  and its  Restricted  Subsidiaries,  among  other  things,  to incur
additional indebtedness; pay dividends or make distributions in respect of their
capital stock; make investments or make certain other restricted payments;  sell
assets; issue or sell stock of Restricted Subsidiaries;  enter into transactions
with stockholders or affiliates;  or, with respect to the Company,  consolidate,
merge or sell all or substantially  all of its assets.  Within 90 days after the
end of the last  fiscal  quarter of each year,  the  Company  must report to the
Trustee on compliance with such limitations.

14.  Successor Persons.

                  Generally, when a successor person or other entity assumes all
the  obligations  of its  predecessor  under the Notes  and the  Indenture,  the
predecessor person will be released from those obligations.

15.  Defaults and Remedies.

                  The following events constitute  "Events of Default" under the
Indenture:  (a) default in the payment of principal of (or premium,  if any, on)
any Note when the same becomes due and payable, upon acceleration, redemption or
otherwise  whether  or not  such  payment  is  prohibited  by the  subordination
provisions of the Indenture;  (b) default in the payment of interest on any Note
when the same becomes due and payable,  and such default  continues for a period
of 30 days  whether  or not such  payment  is  prohibited  by the  subordination
provisions of the Indenture;  (c) the Company  defaults in the performance of or
breaches  any other  covenant or  agreement  of the Company in the  Indenture or
under  the  Notes  and such  default  or  breach  continues  for a period  of 30
consecutive  days after  written  notice by the Trustee or the Holders of 25% or
more in aggregate  principal  amount of the Notes; (d) there occurs with respect
to any  issue or  issues  of  Indebtedness  of the  Company  or any  Significant
Subsidiary having an outstanding  principal amount of $25,000,000 or more in the
aggregate for all such issues of all such Persons, whether such Indebtedness now
exists or shall  hereafter  be created,  (i) an event of default that has caused
the holder thereof to declare such  Indebtedness  to be due and payable prior to
its Stated  Maturity and such  Indebtedness  has not been  discharged in full or
such  acceleration  has not been  rescinded  or annulled  within 30 days of such
acceleration  and/or (ii) the  failure to make a principal  payment at the final
(but not any



<PAGE>

                                      EA-9

interim)  fixed  maturity and such  defaulted  payment shall not have been made,
waived  or  extended  within  30 days of such  payment  default;  (e) any  final
judgment or order (not covered by insurance)  for the payment of money in excess
of $25,000,000  in the aggregate for all such final  judgments or orders against
all such Persons  (treating any deductibles,  self-insurance or retention as not
so covered) shall be rendered against the Company or any Significant  Subsidiary
and  shall  not be paid or  discharged,  and  there  shall be any  period  of 60
consecutive  days following entry of the final judgment or order that causes the
aggregate amount for all such final judgments or orders outstanding and not paid
or discharged against all such Persons to exceed $25,000,000 during which a stay
of enforcement of such final judgment or order, by reason of a pending appeal or
otherwise,  shall  not be in  effect;  (f) a court  having  jurisdiction  in the
premises  enters a decree or order for (i) relief in  respect of the  Company or
any  Significant   Subsidiary  in  an  involuntary  case  under  any  applicable
bankruptcy,  insolvency  or other  similar law now or hereafter in effect,  (ii)
appointment   of  a  receiver,   liquidator,   assignee,   custodian,   trustee,
sequestrator or similar official of the Company or any Significant Subsidiary or
for all or  substantially  all of the  property and assets of the Company or any
Significant  Subsidiary or (iii) the winding up or liquidation of the affairs of
the Company or any  Significant  Subsidiary  and,  in each case,  such decree or
order shall remain  unstayed and in effect for a period of 60 consecutive  days;
or (g) the Company or any Significant  Subsidiary (i) commences a voluntary case
under  any  applicable  bankruptcy,  insolvency  or  other  similar  law  now or
hereafter  in  effect,  or  consents  to the entry of an order for  relief in an
involuntary  case under any such law,  (ii)  consents to the  appointment  of or
taking  possession  by a receiver,  liquidator,  assignee,  custodian,  trustee,
sequestrator or similar official of the Company or any Significant Subsidiary or
for all or  substantially  all of the  property and assets of the Company or any
Significant  Subsidiary or (iii) effects any general  assignment for the benefit
of creditors.

                  If an  Event  of  Default  (other  than an  Event  of  Default
specified  in clause (f) or (g) above that occurs with  respect to the  Company)
occurs and is continuing  under the Indenture,  the Trustee or the Holders of at
least 25% in  aggregate  principal  amount of the Notes,  then  outstanding,  by
written notice to the Company (and to the Trustee if such notice is given by the
Holders), may, and the Trustee at the request of such Holders shall, declare the
principal of, premium, if any, and accrued interest,  if any, on the Notes to be
immediately due and payable.  If a bankruptcy or insolvency default with respect
to the  Company  or any  Restricted  Subsidiary  occurs and is  continuing,  the
principal amount of the Notes automatically becomes due and payable. Holders may
not enforce the Indenture or the Notes except as provided in the Indenture.  The
Trustee  may  require  indemnity  satisfactory  to it  before  it  enforces  the
Indenture or the Notes.  Subject to certain  limitations,  Holders of at least a
majority  in  principal  amount of the Notes  then  outstanding  may  direct the
Trustee in its exercise of any trust or power.




<PAGE>

                                      EA-10

16.  Subordination.

                  The  payment  of the Notes is, to the  extent set forth in the
Indenture,   subordinated  in  right  of  payment  in  full,  in  cash  or  cash
equivalents,  of all Senior  Indebtedness of the Company. To the extent provided
in the  Indenture,  Senior  Indebtedness  of the Company must be paid before the
Notes may be paid.  The  Company  agrees,  and each  Holder by  accepting a Note
agrees,  to  the  subordination   provisions  contained  in  the  Indenture  and
authorizes   the  Trustee  to  give  it  effect  and  appoints  the  Trustee  as
attorney-in-fact for such purposes.

17.  Trustee Dealings with Company.

                  The Trustee  under the  Indenture,  in its  individual  or any
other capacity, may make loans to, accept deposits from and perform services for
the Company or its  Affiliates  and may  otherwise  deal with the Company or its
Affiliates as if it were not the Trustee.

18.  No Recourse Against Others.

                  No incorporator,  stockholder,  officer, director, employee or
controlling person as such, of the Company or of any successor Person thereof in
such capacity, shall have any liability for any obligations of the Company under
the Notes or the Indenture or for any claim based on, in respect of or by reason
of, such  obligations or their creation.  Each Holder by accepting a Note waives
and  releases  all such  liability.  Such  waiver  and  release  are part of the
consideration for the issuance of the Notes.

19.  Authentication.

                  This  Note   shall  not  be  valid   until  the   Trustee   or
authenticating  agent signs the certificate of  authentication on the other side
of this Note.

20.      Holders' Compliance with Registration Rights Agreement.

                  Each Holder of a Note, by acceptance hereof,  acknowledges and
agrees  to the  provisions  of the  Registration  Rights  Agreement,  including,
without   limitation,   the  obligations  of  the  Holders  with  respect  to  a
registration  and the  indemnification  of the  Company to the  extent  provided
therein.

21.  Abbreviations.

                  Customary abbreviations may be used in the name of a Holder or
an assignee,  such as: TEN COM (= tenants in common),  TEN ENT (= tenants by the
entireties), JT TEN



<PAGE>

                                      EA-11

(= joint tenants with right of survivorship and not as tenants in common),  CUST
(= Custodian) and U/G/M/A (= Uniform Gifts to Minors Act).

22.  Governing Law.

                  The  Indenture  and the Notes shall be governed by the laws of
the State of New York,  excluding (to the extent permissible by law) any rule of
law that would cause the application of the laws of any jurisdiction  other than
the State of New York.

                  The Company will  furnish to any Holder upon  written  request
and  without  charge a copy of the  Indenture.  Requests  may be made to WinStar
Communications,  Inc.,  230  Park  Avenue,  Suite  2700,  New  York,  NY  10169,
Attention: General Counsel.




<PAGE>

                                      EA-12

                                 ASSIGNMENT FORM


I or we assign and transfer this Note to:



Please insert social security or other identifying number of assignee







Print or type name,  address and zip code of assignee and irrevocably  appoint ,
as agent, to transfer this Note on the books of the Company.

The agent may substitute another to act for him.

Dated                                       Signed


(Sign exactly as name appears on the other side of this Note)


Signature Guarantee                                  1

- --------
1 The Holder's  signature  must be  guaranteed  by a member firm of a registered
national  securities  exchange  or of the  National  Association  of  Securities
Dealers,  Inc.,  a  commercial  bank  or  trust  company  having  an  office  or
correspondent  in the United States or an "eligible  guarantor  institution"  as
defined by Rule 17Ad-15 under the Exchange Act.



<PAGE>


                                      EA-13


                       OPTION OF HOLDER TO ELECT PURCHASE


     If you wish to have this Note purchased by the Company  pursuant to Section
4.10 or Section 4.11 of the Indenture, check the Box: |_|

     If you  wish to  have a  portion  of this  Note  purchased  by the  Company
pursuant to Section 4.10 or Section 4.11 of the Indenture,  state the amount (in
principal amount):
$-------------

Date:

Your Signature:
            (Sign exactly as your name appears on the other side of this Note)

Signature Guarantee:                        2

- --------
2 The Holder's  signature  must be  guaranteed  by a member firm of a registered
national  securities  exchange  or of the  National  Association  of  Securities
Dealers,  Inc.,  a  commercial  bank  or  trust  company  having  an  office  or
correspondent  in the United States or an "eligible  guarantor  institution"  as
defined by Rule 17Ad-15 under the Exchange Act.



<PAGE>

                                       A-1


                         RULE 144A/REGULATION S APPENDIX



        FOR OFFERINGS TO QUALIFIED INSTITUTIONAL BUYERS PURSUANT TO RULE
         144A, INSTITUTIONAL "ACCREDITED INVESTORS" (AS DEFINED IN RULE
         501(A)(1), (2), (3) OR (7)) AND TO CERTAIN PERSONS IN OFFSHORE
                    TRANSACTIONS IN RELIANCE ON REGULATION S.

                   PROVISIONS RELATING TO INITIAL SECURITIES,
                           PRIVATE EXCHANGE SECURITIES
                             AND EXCHANGE SECURITIES

         1. Definitions

         1.1  Definitions

         For the purposes of this  Appendix the  following  terms shall have the
meanings indicated below:

                  "Definitive  Security" means a certificated  Initial  Security
bearing the restricted  securities  legend set forth in Section 2.3(d) and which
is held by an IAI in accordance with Section 2.1(c).

                  "Depositary" means The Depository Trust Company,  its nominees
and their respective successors.

                  "Exchange   Securities"  means  the  15%  Senior  Subordinated
Deferred  Interest  Notes Due 2007 to be issued  pursuant to this  Indenture  in
connection with a Registered  Exchange Offer pursuant to the Registration Rights
Agreement.

                  "IAI"  means  an   institutional   "accredited   investor"  as
described  in Rule  501(a)(1),  (2),  (3) or (7)  under the  Securities  Act and
Regulation D promulgated thereunder.

                  "Initial Purchasers" means Credit Suisse First Boston
Corporation and BT Securities Corporation.

                  "Initial   Securities"  means  the  15%  Senior   Subordinated
Deferred  Interest  Notes Due 2007,  issued under this Indenture on or about the
date hereof.




<PAGE>

                                       A-2

                  "Private Exchange" means the offer by the Company, pursuant to
the  Registration  Rights  Agreement,  to the  Initial  Purchasers  to issue and
deliver to each Initial  Purchaser,  in exchange for the Initial Securities held
by the Initial Purchaser as part of its initial  distribution,  a like aggregate
principal amount of Private Exchange Securities.

                  "Private   Exchange   Securities"   means   the   15%   Senior
Subordinated  Deferred  Interest  Notes Due 2007 to be issued  pursuant  to this
Indenture to the Initial Purchasers in a Private Exchange.

                  "Purchase   Agreement"  means  the  Purchase  Agreement  dated
October 7, 1997, among the Company and the Initial Purchasers.

                  "QIB" means a  "qualified  institutional  buyer" as defined in
Rule 144A under the Securities Act.

                  "Registered  Exchange  Offer"  means the offer by the Company,
pursuant to the  Registration  Rights  Agreement,  to certain Holders of Initial
Securities,  to issue and deliver to such  Holders,  in exchange for the Initial
Securities,  a like aggregate principal amount of Exchange Securities registered
under the Securities Act.

                  "Registration Rights Agreement" means the Registration Rights
Agreement dated October 7, 1997, among the Company and the Initial Purchasers.

                  "Securities"  means  the  Initial  Securities,   the  Exchange
Securities and the Private Exchange Securities, treated as a single class.

                  "Securities Act" means the Securities Act of 1933.

                  "Securities  Custodian"  means the custodian with respect to a
Global  Security  (as  appointed by the  Depositary),  or any  successor  person
thereto and shall initially be the Trustee.

                  "Shelf   Registration   Statement"   means  the   registration
statement  issued  by the  Company,  in  connection  with the  offer and sale of
Initial Securities or Private Exchange Securities,  pursuant to the Registration
Rights Agreement.

                  "Transfer Restricted  Securities" means Definitive  Securities
and Securities that bear or are required to bear the legend set forth in Section
2.3(d) hereto.




<PAGE>

                                       A-3


         1.2  Other Definitions
<TABLE>
<CAPTION>

                                                                                                     Defined in
                  Term                                                                                Section:
<S>                                                                                                     <C>   
"Agent Members".........................................................................................2.1(b)
"Global Security".......................................................................................2.1(a)
"Regulation S"..........................................................................................2.1(a)
"Rule 144A".............................................................................................2.1(a)
</TABLE>

         2.       The Securities.

         2.1  Form and Dating.

                  The  Initial  Securities  are  being  offered  and sold by the
Company pursuant to the Purchase Agreement.

                  (a) Global Securities.  Initial Securities offered and sold to
a QIB in  reliance  on Rule 144A under the  Securities  Act ("Rule  144A") or in
reliance on Regulation S under the Securities Act ("Regulation S"), in each case
as provided in the Purchase Agreement,  shall be issued initially in the form of
one or more permanent  global  Securities in definitive,  fully  registered form
without  interest  coupons  with the global  securities  legend  and  restricted
securities  legend set forth in Exhibit 1 hereto  (each,  a "Global  Security"),
which shall be deposited on behalf of the  purchasers of the Initial  Securities
represented  thereby with the Trustee,  at its New York office, as custodian for
the Depositary (or with such other custodian as the Depositary may direct),  and
registered in the name of the  Depositary or a nominee of the  Depositary,  duly
executed  by the  Company  and  authenticated  by  the  Trustee  as  hereinafter
provided.  The aggregate  principal amount at maturity of the Global  Securities
may from time to time be  increased  or  decreased  by  adjustments  made on the
records  of the  Trustee  and  the  Depositary  or its  nominee  as  hereinafter
provided.

                  (b)  Book-Entry  Provisions.  This Section  2.1(b) shall apply
only to a Global Security deposited with or on behalf of the Depositary.

                  The Company shall execute and the Trustee shall, in accordance
with this Section 2.1(b),  authenticate and deliver initially one or more Global
Securities  that (a) shall be registered in the name of the  Depositary for such
Global  Security or Global  Securities or the nominee of such Depositary and (b)
shall be delivered by the Trustee to such



<PAGE>

                                       A-4

Depositary or pursuant to such Depositary's  instructions or held by the Trustee
as custodian for the Depositary.

                  Members  of,  or  participants  in,  the  Depositary   ("Agent
Members")  shall have no rights under this  Indenture with respect to any Global
Security  held on  their  behalf  by the  Depositary  or by the  Trustee  as the
custodian of the  Depositary or under such Global  Security,  and the Depositary
may be treated by the  Company,  the Trustee and any agent of the Company or the
Trustee  as the  absolute  owner  of  such  Global  Security  for  all  purposes
whatsoever.  Notwithstanding  the  foregoing,  nothing  herein shall prevent the
Company,  the  Trustee or any agent of the  Company or the  Trustee  from giving
effect to any written certification,  proxy or other authorization  furnished by
the Depositary or impair,  as between the Depositary and its Agent Members,  the
operation of customary  practices of such  Depositary  governing the exercise of
the rights of a holder of a beneficial interest in any Global Security.

                  (c)  Certificated  Securities.  Except  as  provided  in  this
Section  2.1 or Section 2.3 or 2.4,  owners of  beneficial  interests  in Global
Securities  will not be entitled to receive  physical  delivery of  certificated
Securities.  Purchasers of Initial Securities who are IAI's and are not QIBs and
did not  purchase  Initial  Securities  sold in  reliance on  Regulation  S will
receive Definitive  Securities;  provided,  however,  that upon transfer of such
Definitive  Securities to a QIB, such  Definitive  Securities  will,  unless the
Global Security has previously been exchanged, be exchanged for an interest in a
Global Security pursuant to the provisions of Section 2.3.

         2.2  Authentication.  The Trustee shall  authenticate and deliver:  (1)
Initial  Securities  for  original  issue in an  aggregate  principal  amount of
$100,000,000  and (2) Exchange  Securities or Private  Exchange  Securities  for
issue only in a Registered  Exchange Offer or a Private Exchange,  respectively,
pursuant to the Registration  Rights  Agreement,  for a like principal amount of
Initial  Securities,  in each case upon a written order of the Company signed by
two Officers or by an Officer and either an Assistant  Treasurer or an Assistant
Secretary of the Company.  Such order shall specify the amount of the Securities
to be authenticated and the date on which the original issue of Securities is to
be  authenticated  and  whether  the  Securities  are to be Initial  Securities,
Exchange  Securities or Private  Exchange  Securities.  The aggregate  principal
amount of Securities  outstanding at any time may not exceed $100,000,000 except
as provided in Section 2.07 of this Indenture.

         2.3  Transfer and Exchange. (a)  Transfer and Exchange of Definitiv
Securities.  When  Definitive  Securities  are  presented to the  Registrar or a
co-registrar with a request:

     (x) to register the transfer of such Definitive Securities; or


<PAGE>

                                       A-5


     (y) to exchange such Definitive Securities for an equal principal amount of
Definitive  Securities  of other  authorized  denominations,  the  Registrar  or
co-registrar  shall  register  the transfer or make the exchange as requested if
its reasonable  requirements  for such transaction are met;  provided,  however,
that the Definitive Securities surrendered for transfer or exchange:

                  (i)  shall  be  duly  endorsed  or  accompanied  by a  written
         instrument of transfer in form  reasonably  satisfactory to the Company
         and the Registrar or co-registrar,  duly executed by the Holder thereof
         or his attorney duly authorized in writing; and

                (ii) are being transferred or exchanged pursuant to an effective
         registration  statement under the Securities  Act,  pursuant to Section
         2.3(b) or pursuant to clause (A), (B) or (C) below, and are accompanied
         by the following additional information and documents, as applicable:

                           (A) if such Definitive Securities are being delivered
                  to the Registrar by a Holder for  registration  in the name of
                  such  Holder,  without  transfer,  a  certification  from such
                  Holder to that effect (in the form set forth on the reverse of
                  the Security); or

                           (B)  if  such   Definitive   Securities   are   being
                  transferred to the Company, a certification to that effect (in
                  the form set forth on the reverse of the Security); or

                           (C)  if  such   Definitive   Securities   are   being
                  transferred (w) pursuant to an exemption from  registration in
                  accordance  with  Rule  144;  or (x) in  reliance  on  another
                  exemption from the registration requirements of the Securities
                  Act: (i) a certification to that effect (in the form set forth
                  on the  reverse of the  Security)  and (ii) if the  Company or
                  Registrar so requests, an opinion of counsel or other evidence
                  reasonably  satisfactory to them as to the compliance with the
                  restrictions  set forth in the  legend  set  forth in  Section
                  2.3(d)(i).

     (b)  Restrictions  on Transfer of a  Definitive  Security  for a Beneficial
Interest in a Global Security.  A Definitive Security may not be exchanged for a
beneficial  interest  in a  Global  Security  except  upon  satisfaction  of the
requirements set forth below. Upon



<PAGE>

                                       A-6

receipt by the Trustee of a Definitive Security, duly endorsed or accompanied by
appropriate  instruments  of  transfer,  in form  satisfactory  to the  Trustee,
together with:

                  (i) certification, in the form set forth on the reverse of the
         Security,  that such Definitive  Security is being transferred (A) to a
         QIB in  accordance  with Rule 144A, or (B) outside the United States in
         an  offshore  transaction  within the  meaning of  Regulation  S and in
         compliance with Rule 904 under the Securities Act; and

             (ii)  written  instructions  directing  the Trustee to make,  or to
         direct the Securities Custodian to make, an adjustment on its books and
         records with respect to such Global  Security to reflect an increase in
         the aggregate  principal  amount of the  Securities  represented by the
         Global Security, such instructions to contain information regarding the
         Depositary account to be credited with such increase,

then the Trustee shall cancel such Definitive  Security and cause, or direct the
Securities Custodian to cause, in accordance with the standing  instructions and
procedures  existing  between the Depositary and the Securities  Custodian,  the
aggregate  principal amount of Securities  represented by the Global Security to
be increased by the aggregate  principal amount of the Definitive Security to be
exchanged  and shall credit or cause to be credited to the account of the Person
specified  in such  instructions  a beneficial  interest in the Global  Security
equal to the principal  amount of the  Definitive  Security so cancelled.  If no
Global Securities are then outstanding,  the Company shall issue and the Trustee
shall  authenticate,  upon  written  order  of the  Company  in the  form  of an
Officers'  Certificate,  a new  Global  Security  in the  appropriate  principal
amount.

                  (c)  Transfer  and  Exchange  of  Global  Securities.  (i) The
transfer and exchange of Global Securities or beneficial interests therein shall
be effected through the Depositary, in accordance with this Indenture (including
applicable restrictions on transfer set forth herein, if any) and the procedures
of the Depositary  therefor.  A transferor of a beneficial  interest in a Global
Security shall deliver to the Registrar a written order given in accordance with
the Depositary's  procedures  containing  information  regarding the participant
account of the  Depositary  to be  credited  with a  beneficial  interest in the
Global  Security.  The Registrar  shall, in accordance  with such  instructions,
instruct the Depositary to credit to the account of the Person specified in such
instructions  a  beneficial  interest  in the Global  Security  and to debit the
account of the Person making the transfer the beneficial  interest in the Global
Security being transferred.

                (ii)   Notwithstanding   any  other   provisions  of  this  Rule
         144A/Regulation  S Appendix  (other  than the  provisions  set forth in
         Section  2.4),  a Global  Security  may not be  transferred  as a whole
         except by the Depositary to a nominee of the



<PAGE>

                                       A-7

         Depositary  or by a nominee  of the  Depositary  to the  Depositary  or
         another  nominee of the  Depositary  or by the  Depositary  or any such
         nominee  to a  successor  Depositary  or a  nominee  of such  successor
         Depositary.

              (iii)  In the  event  that a  Global  Security  is  exchanged  for
         Securities  in  definitive  registered  form pursuant to Section 2.4 or
         Section 2.09 of the Indenture prior to the consummation of a Registered
         Exchange Offer or the effectiveness of a Shelf  Registration  Statement
         with respect to such Securities,  such Securities may be exchanged only
         in accordance with such procedures as are substantially consistent with
         the  provisions  of  this  Section  2.3  (including  the  certification
         requirements  set  forth  on  the  reverse  of the  Initial  Securities
         intended  to  ensure  that  such  transfers  comply  with  Rule 144A or
         Regulation S, as the case may be) and such other procedures as may from
         time to time be adopted by the Company.

                  (d)  Legends.

                  (i) Except as  permitted  by the  following  paragraphs  (ii),
         (iii)  and  (iv),  each  Security  certificate  evidencing  the  Global
         Securities and the Definitive  Securities (and all Securities issued in
         exchange  therefor or in  substitution  thereof) shall bear a legend in
         substantially the following form:

                  "THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A
                  TRANSACTION  EXEMPT FROM REGISTRATION  UNDER THE UNITED STATES
                  SECURITIES  ACT OF  1933  (THE  "SECURITIES  ACT"),  AND  THIS
                  SECURITY MAY NOT BE OFFERED, SOLD, OR OTHERWISE TRANSFERRED IN
                  THE ABSENCE OF SUCH  REGISTRATION  OR AN APPLICABLE  EXEMPTION
                  THEREFROM.  EACH PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED
                  THAT  THE  SELLER  OF  THIS  SECURITY  MAY BE  RELYING  ON THE
                  EXEMPTION  FROM THE  PROVISIONS OF SECTION 5 OF THE SECURITIES
                  ACT PROVIDED BY RULE 144A THEREUNDER.

                  THE  HOLDER OF THIS  SECURITY  AGREES  FOR THE  BENEFIT OF THE
                  COMPANY THAT (A) THIS SECURITY MAY BE OFFERED, RESOLD, PLEDGED
                  OR OTHERWISE  TRANSFERRED ONLY (i) TO A PERSON WHOM THE SELLER
                  REASONABLY BELIEVES IS A "QUALIFIED  INSTITUTIONAL  BUYER" (AS
                  DEFINED  IN  RULE  144A  UNDER  THE   SECURITIES   ACT)  IN  A
                  TRANSACTION  MEETING THE REQUIREMENTS OF RULE 144A, (ii) IN AN
                  OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE



<PAGE>

                                       A-8

                  SECURITIES   ACT,   (iii)   PURSUANT  TO  AN  EXEMPTION   FROM
                  REGISTRATION  UNDER THE  SECURITIES  ACT  PROVIDED BY RULE 144
                  THEREUNDER (IF AVAILABLE), (iv) TO THE ISSUER, OR (v) PURSUANT
                  TO AN EFFECTIVE  REGISTRATION  STATEMENT  UNDER THE SECURITIES
                  ACT, IN EACH OF CASES (i) THROUGH (v) IN  ACCORDANCE  WITH ANY
                  APPLICABLE  SECURITIES LAWS OF ANY STATE OF THE UNITED STATES,
                  AND (B)  THE  HOLDER  WILL,  AND  EACH  SUBSEQUENT  HOLDER  IS
                  REQUIRED TO,  NOTIFY ANY PURCHASER OF THIS SECURITY FROM IT OF
                  THE RESALE RESTRICTIONS REFERRED TO IN (A) ABOVE.

                  Each   Definitive   Security  will  also  bear  the  following
additional legend:

                  "IN CONNECTION  WITH ANY TRANSFER,  THE HOLDER WILL DELIVER TO
                  THE REGISTRAR AND TRANSFER AGENT SUCH  CERTIFICATES  AND OTHER
                  INFORMATION AS SUCH TRANSFER  AGENT MAY REASONABLY  REQUIRE TO
                  CONFIRM  THAT  THE  TRANSFER   COMPLIES   WITH  THE  FOREGOING
                  RESTRICTIONS."

                  (ii)  Upon  any  sale or  transfer  of a  Transfer  Restricted
         Security (including any Transfer  Restricted Security  represented by a
         Global Security) pursuant to Rule 144 under the Securities Act:

                           (A) in the case of any Transfer  Restricted  Security
                  that is a Definitive Security,  the Registrar shall permit the
                  Holder thereof to exchange such Transfer  Restricted  Security
                  for a certificated  Security that does not bear the legend set
                  forth  above and rescind any  restriction  on the  transfer of
                  such Transfer Restricted Security; and

                           (B) in the case of any Transfer  Restricted  Security
                  that is represented by a Global Security,  the Registrar shall
                  permit the Holder thereof to exchange such Transfer Restricted
                  Security for a  certificated  Security  that does not bear the
                  legend set forth  above and  rescind  any  restriction  on the
                  transfer of such Transfer Restricted  Security,  if the Holder
                  certifies  in writing to the  Registrar  that its  request for
                  such   exchange  was  made  in  reliance  on  Rule  144  (such
                  certification  to be in the form set forth on the  reverse  of
                  the Security).

              (iii)  After a  transfer  of any  Initial  Securities  or  Private
         Exchange  Securities  during the period of the effectiveness of a Shelf
         Registration  Statement  with  respect to such  Initial  Securities  or
         Private Exchange Securities, as the case may be, all



<PAGE>

                                       A-9

         requirements  pertaining  to legends on such  Initial  Security or such
         Private  Exchange  Security  will  cease  to  apply,  the  requirements
         requiring any such Initial Security or such Private  Exchange  Security
         issued to  certain  Holders  to be issued in global  form will cease to
         apply, and a certificated Initial Security or Private Exchange Security
         without  legends will be available to the  transferee  of the Holder of
         such Initial Securities or Private Exchange Securities upon exchange of
         such  transferring  Holder's  certificated  Initial Security or Private
         Exchange  Security or directions to transfer such Holder's  interest in
         the Global Security, as applicable.

                (iv) Upon the  consummation of a Registered  Exchange Offer with
         respect to the Initial  Securities  pursuant  to which  Holders of such
         Initial  Securities  are offered  Exchange  Securities  in exchange for
         their Initial Securities,  all requirements  pertaining to such Initial
         Securities that Initial  Securities issued to certain Holders be issued
         in global form will cease to apply and certificated  Initial Securities
         with the  Restricted  Securities  Legend  set forth in Exhibit 1 hereto
         will be  available to Holders of such  Initial  Securities  that do not
         exchange  their  Initial   Securities,   and  Exchange   Securities  in
         certificated  or global form will be available to Holders that exchange
         such Initial Securities in such Registered Exchange Offer.

                  (v) Upon the  consummation of a Private  Exchange with respect
         to the Initial  Securities  pursuant to which  Holders of such  Initial
         Securities  are offered  Private  Exchange  Securities  in exchange for
         their Initial Securities,  all requirements  pertaining to such Initial
         Securities that Initial  Securities issued to certain Holders be issued
         in global form will still apply,  and Private  Exchange  Securities  in
         global form with the Restricted  Securities Legend set forth in Exhibit
         1 hereto  will be  available  to Holders  that  exchange  such  Initial
         Securities in such Private Exchange.

                  (e)  Cancellation  or Adjustment of Global  Security.  At such
time as all beneficial interests in a Global Security have either been exchanged
for certificated or Definitive  Securities,  redeemed,  repurchased or canceled,
such Global  Security shall be returned to the Depositary  for  cancellation  or
retained and canceled by the Trustee. At any time prior to such cancellation, if
any beneficial  interest in a Global  Security is exchanged for  certificated or
Definitive Securities,  redeemed,  repurchased or canceled, the principal amount
at maturity of Securities  represented by such Global  Security shall be reduced
and an  adjustment  shall be made on the books and records of the Trustee (if it
is then the Securities  Custodian for such Global Security) with respect to such
Global  Security,  by the Trustee or the Securities  Custodian,  to reflect such
reduction.



<PAGE>

                                      A-10

                  (f) Obligations with Respect to Transfers and Exchanges of 
         Securities.

                  (i) To permit  registrations  of transfers and exchanges,  the
         Company shall execute and the Trustee shall  authenticate  certificated
         Securities,   Definitive   Securities  and  Global  Securities  at  the
         Registrar's or co-registrar's request.

                (ii) No service  charge  shall be made for any  registration  of
         transfer or  exchange,  but the  Company  may require  payment of a sum
         sufficient   to  cover  any  transfer  tax,   assessments   or  similar
         governmental  charge  payable in connection  therewith  (other than any
         such transfer taxes, assessments or similar governmental charge payable
         upon exchange or transfer  pursuant to Sections  3.07,  4.10,  4.11 and
         9.04 of the Indenture).

              (iii) The  Registrar  or  co-registrar  shall not be  required  to
         register  the  transfer  of or  exchange  of (a)  any  certificated  or
         Definitive  Security  selected  for  redemption  in  whole  or in  part
         pursuant  to Article  Three of this  Indenture,  except the  unredeemed
         portion of any  certificated  or Definitive  Security being redeemed in
         part,  or (b) any  Security  for a period  beginning  15 Business  Days
         before  the  mailing  of a notice of an offer to  repurchase  or redeem
         Securities or 15 Business Days before an interest payment date.

                (iv) Prior to the due  presentation for registration of transfer
         of any  Security,  the Company,  the  Trustee,  the Paying  Agent,  the
         Registrar  or any  co-registrar  may deem and treat the person in whose
         name a Security is  registered  as the absolute  owner of such Security
         for the purpose of  receiving  payment of  principal of and interest on
         such  Security and for all other  purposes  whatsoever,  whether or not
         such  Security is overdue,  and none of the Company,  the Trustee,  the
         Paying Agent,  the Registrar or any  co-registrar  shall be affected by
         notice to the contrary.

                  (v) All  Securities  issued  upon  any  transfer  or  exchange
         pursuant to the terms of this  Indenture  shall  evidence the same debt
         and shall be entitled to the same benefits  under this Indenture as the
         Securities surrendered upon such transfer or exchange.

                  (g)  No Obligation of the Trustee.

                  (i) The Trustee shall have no  responsibility or obligation to
         any beneficial owner of a Global Security, a member of or a participant
         in the  Depositary  or other Person with respect to the accuracy of the
         records  of the  Depositary  or its  nominee or of any  participant  or
         member thereof with respect to any ownership interest in the Securities
         or with respect to the delivery to any participant, member, beneficial



<PAGE>

                                      A-11

         owner  or  other  Person  (other  than the  Depositary)  of any  notice
         (including any notice of redemption) or the payment of any amount under
         or with respect to such Securities.  All notices and  communications to
         be given to the  Holders and all  payments to be made to Holders  under
         the Securities  shall be given or made only to or upon the order of the
         registered Holders (which shall be the Depositary or its nominee in the
         case of a Global  Security).  The  rights of  beneficial  owners in any
         Global Security shall be exercised only through the Depositary  subject
         to the applicable  rules and procedures of the Depositary.  The Trustee
         may rely and  shall be fully  protected  in  relying  upon  information
         furnished by the Depositary  with respect to its members,  participants
         and any beneficial owners.

                (ii) The Trustee  shall have no  obligation  or duty to monitor,
         determine or inquire as to compliance with any restrictions on transfer
         imposed under this Inden-

         ture or  under  applicable  law with  respect  to any  transfer  of any
         interest in any  Security  (including  any  transfers  between or among
         Depositary  participants,  members or  beneficial  owners in any Global
         Security) other than to require delivery of such certificates and other
         documentation or evidence as are expressly required by, and to do so if
         and when  expressly  required by, the terms of this  Indenture,  and to
         examine the same to determine  substantial  compliance  as to form with
         the express requirements hereof.

         2.4  Certificated Securities.

                  (a) A Global  Security  deposited  with the Depositary or with
the Trustee as  custodian  for the  Depositary  pursuant to Section 2.1 shall be
transferred  to the  beneficial  owners  thereof  in the  form  of  certificated
Securities in an aggregate  principal  amount equal to the  principal  amount of
such  Global  Security,  in  exchange  for such  Global  Security,  only if such
transfer  complies with Section 2.3 and (i) the Depositary  notifies the Company
that it is  unwilling  or unable  to  continue  as  Depositary  for such  Global
Security  or if at any time such  Depositary  ceases to be a  "clearing  agency"
registered under the Exchange Act and a successor depositary is not appointed by
the  Company  within 90 days of such  notice,  or (ii) an Event of  Default  has
occurred  and is  continuing  or (iii)  the  Company,  in its  sole  discretion,
notifies  the  Trustee  in  writing  that it  elects to cause  the  issuance  of
certificated Securities under this Indenture.

                  (b) Any Global Security that is transferable to the beneficial
owners  thereof  pursuant to this Section shall be surrendered by the Depositary
to the Trustee located in the Borough of Manhattan,  The City of New York, to be
so transferred,  in whole or from time to time in part,  without charge, and the
Trustee shall  authenticate  and deliver,  upon such transfer of each portion of
such  Global  Security,  an equal  aggregate  principal  amount of  certificated
Initial Securities of authorized denominations. Any portion of a Global



<PAGE>

                                      A-12

Security transferred  pursuant to this Section shall be executed,  authenticated
and delivered only in  denominations of $1,000 principal amount and any integral
multiple  thereof and registered in such names as the  Depositary  shall direct.
Any certificated  Initial Security  delivered in exchange for an interest in the
Global Security shall,  except as otherwise provided by Section 2.3(d), bear the
Restricted Securities Legend set forth in Exhibit 1 hereto.

                  (c)  Subject  to  the  provisions  of  Section   2.4(b),   the
registered Holder of a Global Security may grant proxies and otherwise authorize
any Person,  including Agent Members and Persons that may hold interests through
Agent Members,  to take any action which a Holder is entitled to take under this
Indenture or the Securities.

                  (d) In the event of the  occurrence  of  either of the  events
specified in Section  2.4(a),  the Company will promptly  make  available to the
Trustee a reasonable  supply of  certificated  Securities in  definitive,  fully
registered form without interest coupons.



<PAGE>

                                      EI-1

                                                          EXHIBIT 1
                                                              to
                                                Rule 144A/REGULATION S APPENDIX


                             [FACE OF INITIAL NOTE]

                           [Global Securities Legend]

                  UNLESS  THIS   CERTIFICATE   IS  PRESENTED  BY  AN  AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION  ("DTC"),
TO THE COMPANY (AS DEFINED  BELOW) OR ITS AGENT FOR  REGISTRATION  OF  TRANSFER,
EXCHANGE OR PAYMENT,  AND ANY  CERTIFICATE  ISSUED IS  REGISTERED IN THE NAME OF
CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
DTC  (AND  ANY  PAYMENT  IS MADE TO CEDE & CO.  OR TO SUCH  OTHER  ENTITY  AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR  OTHERWISE  BY OR TO ANY PERSON IS WRONGFUL  INASMUCH AS
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                  UNLESS  AND  UNTIL  IT IS  EXCHANGED  IN  WHOLE OR IN PART FOR
SECURITIES  IN  DEFINITIVE   REGISTERED   FORM,  THIS  CERTIFICATE  MAY  NOT  BE
TRANSFERRED  EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC
TO DTC OR ANOTHER  NOMINEE OF DTC OR BY DTC OR ANY SUCH  NOMINEE TO A  SUCCESSOR
DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.

                         [Restricted Securities Legend]

                  THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY  ISSUED IN A
TRANSACTION  EXEMPT FROM REGISTRATION  UNDER THE UNITED STATES SECURITIES ACT OF
1933 (THE  "SECURITIES  ACT"),  AND THIS  SECURITY  MAY NOT BE OFFERED,  SOLD OR
OTHERWISE  TRANSFERRED  IN THE  ABSENCE OF SUCH  REGISTRATION  OR AN  APPLICABLE
EXEMPTION THEREFROM. EACH PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE
SELLER OF THIS SECURITY MAY BE RELYING ON THE EXEMPTION  FROM THE  PROVISIONS OF
SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.




<PAGE>

                                      EI-2

                  THE  HOLDER OF THIS  SECURITY  AGREES  FOR THE  BENEFIT OF THE
COMPANY  THAT (A) THIS  SECURITY  MAY BE OFFERED,  RESOLD,  PLEDGED OR OTHERWISE
TRANSFERRED  ONLY  (i) TO A PERSON  WHOM THE  SELLER  REASONABLY  BELIEVES  IS A
"QUALIFIED  INSTITUTIONAL  BUYER" (AS DEFINED IN RULE 144A UNDER THE  SECURITIES
ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (ii) IN AN OFFSHORE
TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE SECURITIES ACT, (iii) PURSUANT
TO AN EXEMPTION FROM REGISTRATION  UNDER THE SECURITIES ACT PROVIDED BY RULE 144
THEREUNDER (IF AVAILABLE),  (iv) TO THE ISSUER,  OR (v) PURSUANT TO AN EFFECTIVE
REGISTRATION  STATEMENT  UNDER THE SECURITIES  ACT, IN EACH OF CASES (i) THROUGH
(v) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED
STATES,  AND (B) THE HOLDER  WILL,  AND EACH  SUBSEQUENT  HOLDER IS REQUIRED TO,
NOTIFY  ANY  PURCHASER  OF  THIS  SECURITY  FROM IT OF THE  RESALE  RESTRICTIONS
REFERRED TO IN (A) ABOVE.

                  IN CONNECTION  WITH ANY  TRANSFER,  THE HOLDER WILL DELIVER TO
THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH
TRANSFER AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH
THE FOREGOING RESTRICTIONS.(1)

                        [Original Issue Discount Legend]

                  FOR PURPOSES OF SECTION  1273 OF THE INTERNAL  REVENUE CODE OF
1986, AS AMENDED (THE "CODE"),  THIS SECURITY HAS ORIGINAL ISSUE  DISCOUNT.  FOR
PURPOSES OF SECTION  1273 OF THE CODE,  THE ISSUE PRICE IS $1,000 AND THE AMOUNT
OF ORIGINAL ISSUE DISCOUNT IS $____, IN EACH CASE PER $1,000 PRINCIPAL AMOUNT OF
THIS SECURITY.  THE AMOUNT OF THE ORIGINAL ISSUE  DISCOUNT  ATTRIBUTABLE  TO THE
PERIOD  COMMENCING  OCTOBER 7, 1997 AND  ENDING ON MARCH 1, 1998 IS $60.00.  FOR
PURPOSES OF SECTION 1275 OF THE CODE, THE ISSUE DATE OF THIS SECURITY IS OCTOBER
7,  1997.  FOR  PURPOSES  OF  SECTION  1272 OF THE CODE,  THE YIELD TO  MATURITY
(COMPOUNDED SEMIANNUALLY ON MARCH 1 AND SEPTEMBER 1) IS 15%, CALCULATED BASED ON
THE APPROXIMATE METHOD.


- ------------
(1)  Include  if a  Definitive  Security  is to  be  held  by  an  institutional
     "accredited  investor"  (as defined in Rule 501(a),  (1),  (2), (3) or (7))
     under the Securities Act.



<PAGE>

                                      EI-3

                          WINSTAR COMMUNICATIONS, INC.

             15% Senior Subordinated Deferred Interest Note Due 2007

                                                              CUSIP _________
No.                                                               $___________

                  WINSTAR  COMMUNICATIONS,  INC.,  a Delaware  corporation  (the
"Company",  which term  includes any successor  under the Indenture  hereinafter
referred  to),  for  value  received,  promises  to pay to  __________  , or its
registered assigns, the principal sum of ____________ ($_____) on March 1, 2007.

     SemiAnnual Interest Accrual Date: March 1 and September 1, commencing March
1, 1998.

                  Interest Payment Dates:  March 1 and September 1, commencing
September 1, 2002.

                  Regular Record Dates:  February 15 and August 15.

                  Reference  is hereby  made to the further  provisions  of this
Note set forth on the reverse  hereof,  which further  provisions  shall for all
purposes have the same effect as if set forth at this place.





<PAGE>

                                      EI-4

         IN WITNESS  WHEREOF,  the  Company  has  caused  this Note to be signed
manually or by facsimile by its duly authorized officer.

Date:                                         WINSTAR COMMUNICATIONS, INC.


                                              By:
                                                Name:
                                                Title:


                (Form of Trustee's Certificate of Authentication)

                This is one of the 15%  Senior  Subordinated  Deferred  Interest
Notes Due 2007 described in the within-mentioned Indenture.

Date:
                                              UNITED STATES TRUST
                                              COMPANY OF NEW YORK, as
                                              Trustee


                                              By:
                                                 Authorized Signatory





<PAGE>

                                      EI-5

                             [REVERSE SIDE OF NOTE]

                          WINSTAR COMMUNICATIONS, INC.

             15% Senior Subordinated Deferred Interest Note Due 2007

1.  Principal and Interest.

                  The Company  will pay the  principal  of this Note on March 1,
2007.

                  The Company promises to pay interest on the Accumulated Amount
of this Note on each Interest  Payment Date, as set forth below, at the rate per
annum shown above.

                  Until  March 1, 2002,  interest  on the Notes will accrue at a
rate of 15% per annum and be compounded semiannually on each SemiAnnual Interest
Accrual Date, but (except as provided  below) will not be payable in cash.  From
and after March 1, 2002, interest on the Accumulated Amount of each Note will be
payable  semiannually  (to the  holders  of  record of the Notes at the close of
business on the  February 15 or August 15  immediately  preceding  the  relevant
Interest  Payment Date) on each Interest Payment Date,  commencing  September 1,
2002.

                  "Accumulated  Amount"  means,  as of any date (the  "Specified
Date"), the amount provided below for each $1,000 principal amount of Notes.

                  (i) If the Specified Date occurs on one of the following dates
         (each, a "SemiAnnual Interest Accrual Date"), the Accumulated Amount of
         this Note will equal the amount set forth  below for such Note for such
         SemiAnnual Interest Accrual Date:
     
SemiAnnual Interest Accrual Date                    Accumulated Amount

March 1, 1998...........................                  $1060.000
September 1, 1998.......................                   1139.500
March 1, 1999...........................                   1224.963
September 1, 1999.......................                   1316.835
March 1, 2000...........................                   1415.597
September 1, 2000.......................                   1521.767
March 1, 2001...........................                   1635.900
September 1, 2001.......................                   1758.592
March 1, 2002...........................                   1890.486





<PAGE>

                                      EI-6

                  (ii) if the Specified Date occurs before the first  SemiAnnual
         Interest Accrual Date, the Accumulated Amount will equal the sum of (A)
         $1,000 and (B) an amount  equal to the  product of (1) the  Accumulated
         Amount  for the first  SemiAnnual  Interest  Accrual  Date less  $1,000
         multiplied  by (2) a fraction,  the numerator of which is the number of
         days elapsed from the Issue Date to the Specified Date, using a 360-day
         year of  twelve  30-day  months,  and the  denominator  of which is the
         number  of days from the Issue  Date to the first  SemiAnnual  Interest
         Accrual Date, using a 360-day year of twelve 30-day months;

                  (iii) if the  Specified  Date occurs  between  two  SemiAnnual
         Interest  Accrual Dates,  the Accumulated  Amount will equal the sum of
         (A) the  Accumulated  Amount for the SemiAnnual  Interest  Accrual Date
         immediately  preceding  such  Specified Date and (B) an amount equal to
         the product of (1) the Accumulated Amount for the immediately following
         SemiAnnual  Interest  Accrual Date less the Accumulated  Amount for the
         immediately  preceding  SemiAnnual  Interest Accrual Date multiplied by
         (2) a fraction,  the  numerator  of which is the number of days elapsed
         from the immediately  preceding SemiAnnual Interest Accrual Date to the
         Specified Date,  using a 360-day year or twelve 30-day months,  and the
         denominator of which is 180; or

                  (iv) if the  Specified  Date occurs after the last  SemiAnnual
         Interest  Accrual Date, the Accumulated  Amount of this Note will equal
         $1890.486.

                  Notwithstanding  anything  to  the  contrary  above,  (i) if a
Registration  Default (as defined in the Registration  Rights Agreement) occurs,
additional  interest  will  accrue on this Note from and  including  the date on
which any such Registration  Default shall occur to but excluding the earlier of
(x) the date on which all Registration Defaults have been cured and (y) the date
on which all Notes become freely  transferable  by Holders other than Affiliates
of the Company  without  further  registration  under the  Securities  Act. Such
additional  interest will be payable in cash semiannually in arrears,  at a rate
per annum equal to .50% of the  Accumulated  Amount of the Notes on the relevant
additional  interest  payment date. Such additional  interest will be payable on
each SemiAnnual  Interest Accrual Date or Interest Payment Date, as the case may
be,  commencing with the first  SemiAnnual  Interest  Accrual Date following the
applicable  Registration  Default.  Payments of additional interest on the Notes
will be made to the Holders of Notes on the Regular Record Date (or, if there is
no  Regular  Record  Date,  the date 15 days prior to such  SemiAnnual  Interest
Accrual Date)  immediately  preceding such SemiAnnual  Interest  Accrual Date or
Interest Payment Date.




<PAGE>

                                      EI-7

                  The  Company  shall pay  interest  on  overdue  principal  and
premium, if any, and (to the extent lawful) interest on overdue  installments of
interest.

2.  Method of Payment.

                  The Company will pay principal as provided  above and interest
(except defaulted  interest) on the Accumulated  Amount of the Notes as provided
above on each March 1 and  September 1,  commencing  September  1, 2002,  to the
persons who are Holders (as reflected in the Security  Register) at the close of
business on the  February 15 or August 15  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if the  Note  is  cancelled  on
registration  of transfer or  registration  of exchange  after such record date;
provided,  however, that, with respect to the payment of principal,  the Company
will not make payment to the Holder unless this Note is  surrendered to a Paying
Agent.

                  The Company  will pay  principal  and interest in money of the
United  States that at the time of payment is legal tender for payment of public
and private debts. Payments in respect of the Notes represented by a global Note
(including  principal,  premium and  interest)  will be made by wire transfer of
immediately  available funds to the accounts  specified by The Depository  Trust
Company.  The Company will make all payments in respect of a  certificated  Note
(including principal, premium and interest) by mailing a check to the registered
address  of  each  Holder  thereof;  provided,   however,  that  payments  on  a
certificated  Note  will  be  made by wire  transfer  to a U.S.  dollar  account
maintained  by the payee with a bank in the United  States if such Holder elects
payment by wire transfer by giving  written  notice to the Trustee or the Paying
Agent to such effect  designating such account no later than 30 days immediately
preceding  the  relevant due date for payment (or such other date as the trustee
may accept in its discretion).

3.  Paying Agent and Registrar.

                  Initially,  United  States  Trust  Company  of New  York  (the
"Trustee") will act as  authenticating  agent,  Paying Agent and Registrar.  The
Company may change any authenticating  agent,  Paying Agent or Registrar without
notice.  The Company,  any Subsidiary or any Affiliate of any of them may act as
Paying Agent, Registrar or co-Registrar.

4.  Indenture.

                  The Company issued the Notes under an Indenture dated as of
October 1,1997 (the "Indenture"), between the Company and the Trustee.
Capitalized



<PAGE>

                                      EI-8

terms herein are used as defined in the Indenture  unless  otherwise  indicated.
The terms of the Notes include those stated in the Indenture and those made part
of the Indenture by reference to the Trust  Indenture Act. The Notes are subject
to all such  terms,  and Holders are  referred  to the  Indenture  and the Trust
Indenture  Act for a statement  of all such terms.  To the extent  permitted  by
applicable law, in the event of any inconsistency between the terms of this Note
and the terms of the Indenture, the terms of the Indenture shall control.

                  The Indenture limits the original  aggregate  principal amount
of the Notes to $100,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The  Notes  will not be  redeemable  prior  to March 1,  2002.
Thereafter,  the Notes will be redeemable,  at the Company's option, in whole at
any time or in part  from  time to time  upon not less  than 30 nor more than 60
days' prior notice mailed by  first-class  mail to each Holders' last address as
it  appears  in the  Security  Register,  at  the  following  Redemption  Prices
(expressed as a percentage of the Accumulated Amount of the Notes), plus accrued
and unpaid interest,  if any, on such Accumulated  Amount to the Redemption Date
(subject to the right of Holders of record on the relevant  Regular  Record Date
that is on or  prior  to the  Redemption  Date to  receive  interest  due on the
relevant  Interest  Payment  Date),  if  redeemed  during  the  12-month  period
commencing March 1 of the years set forth below:

                           Year                           Redemption Price
                           2002                               107.500%
                           2003                               103.750
                           2004 and thereafter                100.000

6.  Notice of Redemption.

                  Notice  of any  optional  redemption  will  be  mailed  by the
Company at least 30 days but not more than 60 days before a  Redemption  Date to
each  Holder of Notes to be  redeemed  at his last  address as it appears in the
Security  Register.  Notes in original  denominations  larger than $1,000 may be
redeemed  in  part;  provided,  however,  that  Notes  will  only be  issued  in
denominations of $1,000 principal amount or integral multiples  thereof.  On and
after the Redemption  Date,  interest  ceases to accrue on Notes (or portions of
Notes) called for redemption,  unless the Company defaults in the payment of the
Redemption Price.

7. Repurchase upon Change in Control.



<PAGE>

                                      EI-9

                  Upon the occurrence of a Change of Control,  each Holder shall
have the right to require  the  repurchase  of its Notes by the  Company in cash
pursuant to the offer  described in the  Indenture at a purchase  price equal to
101% of the  Accumulated  Amount of such  Notes on such date of  purchase,  plus
accrued and unpaid interest,  if any, on such Accumulated  Amount to the date of
purchase (the "Change of Control Payment").

                  A notice of such  Change of Control  will be mailed  within 30
days after any Change of Control occurs to each Holder at his last address as it
appears in the Security Register.  Notes in original  denominations  larger than
$1,000 may be sold to the Company in part;  provided,  however,  that Notes will
only be issued  in  denominations  of $1,000  principal  amount at  maturity  or
integral  multiples  thereof.  On and after the Change of Control  Payment Date,
interest ceases to accrue on Notes or portions of Notes surrendered for purchase
by the  Company,  unless the  Company  defaults  in the payment of the Change of
Control Payment.

8.  Denominations; Transfer; Exchange.

                  The  Notes  are  in   registered   form  without   coupons  in
denominations of $1,000 of principal amount and integral  multiples  thereof.  A
Holder may  register the  transfer or exchange of Notes in  accordance  with the
Indenture.  The Registrar may require a Holder,  among other things,  to furnish
appropriate  endorsements  and transfer  documents and to pay any taxes and fees
required by law or permitted by the  Indenture.  The Registrar need not register
the transfer or exchange of any Notes selected for redemption. Also, it need not
register  the transfer or exchange of any Notes for a period of 15 days before a
selection of Notes to be redeemed is made.

9.  Persons Deemed Owners.

                  A  Holder  shall  be  treated  as the  owner of a Note for all
purposes.

10.  Unclaimed Money.

                  If money for the  payment of  principal,  premium,  if any, or
interest remains  unclaimed for two years, the Trustee and the Paying Agent will
pay the money back to the Company at its request.  After that,  Holders entitled
to the money must look to the  Company for  payment,  unless an  applicable  law
designates  another  Person,  and all  liability  of the Trustee and such Paying
Agent with respect to such money shall cease.




<PAGE>

                                      EI-10

11. Discharge Prior to Redemption or Maturity.

                  Subject to  certain  conditions,  the  Company at any time may
terminate  some or all of its  obligations  under the Notes and the Indenture if
the Company deposits with the Trustee money or U.S.  Government  Obligations for
the payment of principal and interest on the Notes to redemption or maturity, as
the case may be.

12.  Amendment; Supplement; Waiver.

                  Subject to certain exceptions,  the Indenture or the Notes may
be  amended  or  supplemented  with the  consent  of the  Holders  of at least a
majority in  principal  amount of the Notes then  outstanding,  and any existing
default or  compliance  with any provision may be waived with the consent of the
Holders  of  at  least  a  majority  in  principal  amount  of  the  Notes  then
outstanding. Without notice to or the consent of any Holder, the parties thereto
may amend or supplement the Indenture or the Notes to, among other things,  cure
any ambiguity,  defect or inconsistency and make any change that, in the opinion
of the Board of Directors  of the Company,  does not  materially  and  adversely
affect the rights of any Holder.

13.  Restrictive Covenants.

                  The Indenture  imposes  certain  limitations on the ability of
the Company  and its  Restricted  Subsidiaries,  among  other  things,  to incur
additional indebtedness; pay dividends or make distributions in respect of their
capital stock; make investments or make certain other restricted payments;  sell
assets; issue or sell stock of Restricted Subsidiaries;  enter into transactions
with stockholders or affiliates;  or, with respect to the Company,  consolidate,
merge or sell all or substantially  all of its assets.  Within 90 days after the
end of the last  fiscal  quarter of each year,  the  Company  must report to the
Trustee on compliance with such limitations.

14.  Successor Persons.

                  Generally, when a successor person or other entity assumes all
the  obligations  of its  predecessor  under the Notes  and the  Indenture,  the
predecessor person will be released from those obligations.

15.  Defaults and Remedies.

                  The following events constitute  "Events of Default" under the
Indenture:  (a) default in the payment of principal of (or premium,  if any, on)
any Note when the same becomes due and payable, upon acceleration, redemption or
otherwise whether or



<PAGE>

                                      EI-11

not such payment is prohibited by the subordination provisions of the Indenture;
(b) default in the payment of interest on any Note when the same becomes due and
payable,  and such default continues for a period of 30 days whether or not such
payment is prohibited by the subordination  provisions of the Indenture; (c) the
Company  defaults  in the  performance  of or  breaches  any other  covenant  or
agreement of the Company in the Indenture or under the Notes and such default or
breach continues for a period of 30 consecutive days after written notice by the
Trustee  or the  Holders  of 25% or more in  aggregate  principal  amount of the
Notes;  (d) there occurs with respect to any issue or issues of  Indebtedness of
the Company or any Significant Subsidiary having an outstanding principal amount
of $25,000,000 or more in the aggregate for all such issues of all such Persons,
whether such Indebtedness now exists or shall hereafter be created, (i) an event
of default that has caused the holder thereof to declare such Indebtedness to be
due and payable prior to its Stated Maturity and such  Indebtedness has not been
discharged  in full or such  acceleration  has not been  rescinded  or  annulled
within 30 days of such acceleration  and/or (ii) the failure to make a principal
payment at the final (but not any interim)  fixed  maturity  and such  defaulted
payment  shall not have been  made,  waived or  extended  within 30 days of such
payment default;  (e) any final judgment or order (not covered by insurance) for
the  payment of money in excess of  $25,000,000  in the  aggregate  for all such
final  judgments or orders against all such Persons  (treating any  deductibles,
self-insurance  or  retention as not so covered)  shall be rendered  against the
Company or any Significant  Subsidiary and shall not be paid or discharged,  and
there shall be any period of 60 consecutive  days  following  entry of the final
judgment or order that causes the aggregate  amount for all such final judgments
or orders  outstanding  and not paid or  discharged  against all such Persons to
exceed  $25,000,000 during which a stay of enforcement of such final judgment or
order, by reason of a pending appeal or otherwise, shall not be in effect; (f) a
court  having  jurisdiction  in the  premises  enters a decree  or order for (i)
relief in respect of the Company or any Significant Subsidiary in an involuntary
case under any  applicable  bankruptcy,  insolvency  or other similar law now or
hereafter  in effect,  (ii)  appointment  of a receiver,  liquidator,  assignee,
custodian,  trustee,  sequestrator  or similar  official  of the  Company or any
Significant  Subsidiary  or for all or  substantially  all of the  property  and
assets of the Company or any  Significant  Subsidiary or (iii) the winding up or
liquidation of the affairs of the Company or any Significant  Subsidiary and, in
each case, such decree or order shall remain unstayed and in effect for a period
of 60  consecutive  days; or (g) the Company or any  Significant  Subsidiary (i)
commences a voluntary case under any applicable bankruptcy,  insolvency or other
similar law now or hereafter in effect, or consents to the entry of an order for
relief  in an  involuntary  case  under  any  such  law,  (ii)  consents  to the
appointment  of  or  taking  possession  by a  receiver,  liquidator,  assignee,
custodian,  trustee,  sequestrator  or similar  official  of the  Company or any
Significant Subsidiary or for all or substantially all of



<PAGE>

                                      EI-12

the property and assets of the Company or any  Significant  Subsidiary  or (iii)
effects any general assignment for the benefit of creditors.

                  If an  Event  of  Default  (other  than an  Event  of  Default
specified  in clause (f) or (g) above that occurs with  respect to the  Company)
occurs and is continuing  under the Indenture,  the Trustee or the Holders of at
least 25% in  aggregate  principal  amount of the Notes,  then  outstanding,  by
written notice to the Company (and to the Trustee if such notice is given by the
Holders), may, and the Trustee at the request of such Holders shall, declare the
principal of, premium, if any, and accrued interest,  if any, on the Notes to be
immediately due and payable.  If a bankruptcy or insolvency default with respect
to the  Company  or any  Restricted  Subsidiary  occurs and is  continuing,  the
principal amount of the Notes automatically becomes due and payable. Holders may
not enforce the Indenture or the Notes except as provided in the Indenture.  The
Trustee  may  require  indemnity  satisfactory  to it  before  it  enforces  the
Indenture or the Notes.  Subject to certain  limitations,  Holders of at least a
majority  in  principal  amount of the Notes  then  outstanding  may  direct the
Trustee in its exercise of any trust or power.

16.  Subordination.

                  The  payment  of the Notes is, to the  extent set forth in the
Indenture,   subordinated  in  right  of  payment  in  full,  in  cash  or  cash
equivalents,  of all Senior  Indebtedness of the Company. To the extent provided
in the  Indenture,  Senior  Indebtedness  of the Company must be paid before the
Notes may be paid.  The  Company  agrees,  and each  Holder by  accepting a Note
agrees,  to  the  subordination   provisions  contained  in  the  Indenture  and
authorizes   the  Trustee  to  give  it  effect  and  appoints  the  Trustee  as
attorney-in-fact for such purposes.

17.  Trustee Dealings with Company.

                  The Trustee  under the  Indenture,  in its  individual  or any
other capacity, may make loans to, accept deposits from and perform services for
the Company or its  Affiliates  and may  otherwise  deal with the Company or its
Affiliates as if it were not the Trustee.

18.  No Recourse Against Others.

                  No incorporator,  stockholder,  officer, director, employee or
controlling person as such, of the Company or of any successor Person thereof in
such capacity, shall have any liability for any obligations of the Company under
the Notes or the Indenture or for any claim based on, in respect of or by reason
of, such obligations or



<PAGE>

                                      EI-13

their  creation.  Each Holder by  accepting a Note waives and  releases all such
liability.  Such  waiver  and  release  are  part of the  consideration  for the
issuance of the Notes.

19.  Authentication.

                  This  Note   shall  not  be  valid   until  the   Trustee   or
authenticating  agent signs the certificate of  authentication on the other side
of this Note.

20. Holders' Compliance with Registration Rights Agreement.

                  Each Holder of a Note, by acceptance hereof,  acknowledges and
agrees  to the  provisions  of the  Registration  Rights  Agreement,  including,
without   limitation,   the  obligations  of  the  Holders  with  respect  to  a
registration  and the  indemnification  of the  Company to the  extent  provided
therein.

21.  Abbreviations.

                  Customary abbreviations may be used in the name of a Holder or
an assignee,  such as: TEN COM (= tenants in common),  TEN ENT (= tenants by the
entireties),  JT TEN (= joint  tenants  with  right of  survivorship  and not as
tenants in common),  CUST (=  Custodian)  and U/G/M/A (= Uniform Gifts to Minors
Act).

22.  Governing Law.

                  The  Indenture  and the Notes shall be governed by the laws of
the State of New York,  excluding (to the extent permissible by law) any rule of
law that would cause the application of the laws of any jurisdiction  other than
the State of New York.

                  The Company will  furnish to any Holder upon  written  request
and  without  charge a copy of the  Indenture.  Requests  may be made to WinStar
Communications,  Inc.,  230  Park  Avenue,  Suite  2700,  New  York,  NY  10169,
Attention: General Counsel.




<PAGE>

                                      EI-14

                                 ASSIGNMENT FORM


I or we assign and transfer this Note to:



Please insert social security or other identifying number of assignee







Print or type name,  address and zip code of assignee and irrevocably  appoint ,
as agent, to transfer this Note on the books of the Company.

The agent may substitute another to act for him.

Dated                               Signed





(Sign exactly as name appears on the other side of this Note)


Signature Guarantee                                  1

In  connection  with any  transfer of any of the  Securities  evidenced  by this
certificate  occurring prior to the expiration of the period referred to in Rule
144(k) under the Securities Act after the later of the date of original issuance
of such Securities and the

- --------
1 The Holder's  signature  must be  guaranteed  by a member firm of a registered
national  securities  exchange  or of the  National  Association  of  Securities
Dealers,  Inc.,  a  commercial  bank  or  trust  company  having  an  office  or
correspondent  in the United States or an "eligible  guarantor  institution"  as
defined by Rule 17Ad-15 under the Exchange Act.



<PAGE>

                                      EI-15

last date,  if any,  on which such  Securities  were owned by the Company or any
Affiliate of the Company,  the  undersigned  confirms that such  Securities  are
being transferred in accordance with its terms:

CHECK ONE BOX BELOW

(1)  |_| to the Company; or

(2)  |_| pursuant to an effective  registration  statement  under the Securities
     Act of 1933; or

(3)  |_| inside  the  United  States to a  "qualified  institutional  buyer" (as
     defined in Rule 144A under the  Securities  Act of 1933) that purchases for
     its own account or for the account of a  qualified  institutional  buyer to
     whom  notice is given that such  transfer is being made in reliance on Rule
     144A, in each case  pursuant to and in compliance  with Rule 144A under the
     Securities Act of 1933; or

(4)  |_| outside the United States in an offshore transaction within the meaning
     of Regulation S under the Securities Act in compliance  with Rule 904 under
     the Securities Act of 1933; or

(5)  |_| pursuant to another available  exemption from registration  provided by
     Rule 144 under the Securities Act of 1933.

         Unless one of the boxes is checked, the Trustee will refuse to register
         any of the Securities  evidenced by this certificate in the name of any
         person other than the registered  holder  thereof;  provided,  however,
         that if box (4) or (5) is checked,  the Trustee may  require,  prior to
         registering any such transfer of the  Securities,  such legal opinions,
         certifications  and other  information  as the Company  has  reasonably
         requested to confirm that such transfer is being made pursuant to an



<PAGE>

                                      EI-16

         exemption  from, or in a transaction  not subject to, the  registration
         requirements  of the  Securities  Act of  1933,  such as the  exemption
         provided by Rule 144 under such Act.




                                                     ------------------------
                                                     Signature

Signature Guarantee:

- ---------------------                                --------------------------
Signature must be guaranteed                         Signature

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


              TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED.

                  The undersigned  represents and warrants that it is purchasing
this  Security  for its own  account  or an  account  with  respect  to which it
exercises  sole  investment  discretion  and that it and any such  account  is a
"qualified  institutional  buyer"  within  the  meaning  of Rule 144A  under the
Securities  Act of  1933,  and is aware  that  the  sale to it is being  made in
reliance on Rule 144A and  acknowledges  that it has received  such  information
regarding the Company as the undersigned has requested  pursuant to Rule 144A or
has  determined  not to request such  information  and that it is aware that the
transferor is relying upon the undersigned's foregoing  representations in order
to claim the exemption from registration provided by Rule 144A.


Dated: ________________                       ______________________________
                                              NOTICE:  To be executed by
                                                       an executive officer





<PAGE>

                                      EI-17

                      [TO BE ATTACHED TO GLOBAL SECURITIES]

              SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

                  The following  increases or decreases in this Global  Security
have been made:
<TABLE>
<CAPTION>

<S>                             <C>                        <C>                              <C>   
Date of                   Amount of decrease in     Amount of increase in     Principal amount of this  Signature of authorized
Exchange                  Principal  Amount of this Principal Amount of this  Global Security following officer of Trustee or
                          Global Security           Global Security           such decrease or increase)Securities Custodian

</TABLE>






<PAGE>

                                      EI-18

                       OPTION OF HOLDER TO ELECT PURCHASE


     If you wish to have this Note purchased by the Company  pursuant to Section
4.10 or Section 4.11 of the Indenture, check the Box: |_|

     If you  wish to  have a  portion  of this  Note  purchased  by the  Company
pursuant to Section 4.10 or Section 4.11 of the Indenture,  state the amount (in
principal amount):
$----------

Date:

Your Signature:
         (Sign exactly as your name appears on the other side of this Note)

Signature Guarantee:                        2



- --------
2 The Holder's  signature  must be  guaranteed  by a member firm of a registered
national  securities  exchange  or of the  National  Association  of  Securities
Dealers,  Inc.,  a  commercial  bank  or  trust  company  having  an  office  or
correspondent  in the United States or an "eligible  guarantor  institution"  as
defined by Rule 17Ad-15 under the Exchange Act.



<PAGE>



                                  $100,000,000

                          WINSTAR COMMUNICATIONS, INC.

      $100,000,000 15% Senior Subordinated Deferred Interest Notes Due 2007


                          REGISTRATION RIGHTS AGREEMENT


                                 October 7, 1997

Credit Suisse First Boston Corporation
BT Alex Brown Incorporated
c/o Credit Suisse First Boston Corporation
Eleven Madison Avenue
New York, New York  10010

Ladies and Gentlemen:

         WinStar  Communications,  Inc., a Delaware  corporation (the "Issuer"),
has agreed to issue and sell to Credit  Suisse First Boston  Corporation  and BT
Alex Brown Incorporated (the "Initial Purchasers"),  upon the terms set forth in
a    purchase    agreement    of   even    date    herewith    (the    "Purchase
Agreement"),$100,000,000  aggregate  principal amount of the Issuer's 15% Senior
Subordinated  Deferred Interest Notes Due 2007 (the "Notes").  The Notes will be
issued pursuant to an Indenture,  dated as of October 1, 1997 (the "Indenture"),
among the Issuer and United States Trust Company of New York (the "Trustee"). As
an  inducement  to the Initial  Purchasers,  the Issuer  agrees with the Initial
Purchasers,  for the  benefit of the  holders of the Notes  (including,  without
limitation, the Initial Purchasers),  the Exchange Securities (as defined below)
and the  Private  Exchange  Securities  (as  defined  below)  (collectively  the
"Holders"), as follows:

         1. Registered  Exchange Offer.  The Issuer shall, at the Issuer's cost,
prepare  and, not later than 45 days after (or if the 45th day is not a business
day, the first business day  thereafter) the date of original issue of the Notes
(the "Issue  Date"),  file with the  Securities  and  Exchange  Commission  (the
"Commission")  a  registration   statement  (the  "Exchange  Offer  Registration
Statement") on an appropriate  form under the Securities Act of 1933, as amended
(the  "Securities  Act"),  with  respect  to a proposed  offer (the  "Registered
Exchange  Offer") to the Holders of the Notes, who are not prohibited by any law
or policy of the Commission  from  participating  in such a Registered  Exchange
Offer, to issue and deliver to such Holders, in exchange for their Notes, a like
aggregate  principal  amount of debt  securities  of the Issuer  (the  "Exchange
Securities")  issued under the Indenture and identical in all material  respects
to the Notes (except for the transfer  restrictions relating to the Notes), that
would be  registered  under the  Securities  Act.  The Issuer shall use its best
efforts to cause such Exchange Offer Registration  Statement to become effective
under the  Securities Act within 150 days (or if the 150th day is not a business
day, the first  business day  thereafter)  after the Issue Date of the Notes and
shall keep the Exchange Offer Registration Statement effective for not less than
30 days (or longer,  if required by applicable law) after the date notice of the
Registered  Exchange  Offers is mailed to the Holders  (such period being called
the "Exchange Offer Registration Period").




<PAGE>

                                        2

         If the Issuer effects the Registered Exchange Offer, the Issuer will be
entitled to close such Registered  Exchange Offer 30 days after the commencement
thereof provided that the Issuer has accepted all the Notes theretofore  validly
tendered in accordance with the terms of the Registered Exchange Offer.

         Following the  declaration of the  effectiveness  of the Exchange Offer
Registration  Statement,  the Issuer  shall  promptly  commence  the  Registered
Exchange  Offer,  it being the objective of such  Registered  Exchange  Offer to
enable each Holder of the Notes  electing  to exchange  such Notes for  Exchange
Securities  (assuming  that such Holder is not an affiliate of the Issuer within
the meaning of the  Securities  Act,  acquires  the Exchange  Securities  in the
ordinary  course of such  Holder's  business  and has no  arrangements  with any
person to participate in the distribution of the Exchange  Securities and is not
prohibited  by any law or policy of the  Commission  from  participating  in the
Registered  Exchange  Offers) to trade such Exchange  Securities  from and after
their receipt without any  limitations or restrictions  under the Securities Act
and  without  material  restrictions  under the  securities  laws of the several
states of the United States.

         The Issuer  acknowledges that,  pursuant to current  interpretations by
the Commission's  staff of Section 5 of the Securities Act, in the absence of an
applicable  exemption  therefrom,  (i)  each  Holder  which  is a  broker-dealer
electing to exchange  Notes,  acquired for its own account as a result of market
making  activities  or other trading  activities,  for Exchange  Securities  (an
"Exchanging  Dealer"),  is  required  to  deliver a  prospectus  containing  the
information  set forth in Annex A hereto on the cover,  in Annex B hereto in the
"Exchange  Offer  Procedures"  section and the "Purpose of the  Exchange  Offer"
section,  and in Annex C hereto in the "Plan of  Distribution"  section  of such
prospectus in connection with a sale of any such Exchange Securities received by
such  Exchanging  Dealer  pursuant to a  Registered  Exchange  Offer and (ii) an
Initial Purchaser that elects to sell Exchange  Securities  acquired in exchange
for Notes constituting any portion of an unsold allotment is required to deliver
a  prospectus  containing  the  information  required  by  Items  507  or 508 of
Regulation S-K under the Securities Act, as applicable,  in connection with such
sale.

         The  Issuer  shall  use its best  efforts  to keep the  Exchange  Offer
Registration  Statement  effective and to amend and  supplement  the  prospectus
contained  therein,  in order to permit such prospectus to be lawfully delivered
by all persons subject to the prospectus delivery requirements of the Securities
Act for such period of time as such persons  must comply with such  requirements
in order to resell the Exchange Securities;  provided,  however, that (i) in the
case where such  prospectus  and any  amendment  or  supplement  thereto must be
delivered by an Exchanging Dealer or an Initial Purchaser,  such period shall be
the  lesser of 180 days and the date on which  all  Exchanging  Dealers  and the
Initial  Purchasers have sold all Exchange  Securities held by them (unless such
period is  extended  pursuant to Section  3(j) below) and (ii) the Issuer  shall
make such prospectus and any amendment or supplement  thereto,  available to any
broker-dealer  for use in connection with any resale of any Exchange  Securities
for a period  not less than 90 days  after the  consummation  of the  Registered
Exchange Offer.

         If, upon  consummation of the Registered  Exchange  Offer,  any Initial
Purchaser  holds Notes acquired by it as part of its initial  distribution,  the
Issuer,  simultaneously with the delivery of the Exchange Securities pursuant to
the Registered Exchange Offer, shall issue and deliver to such Initial Purchaser
upon the written  request of such Initial  Purchaser,  in exchange (the "Private
Exchange") for the Notes held by such Initial



<PAGE>

                                        3

Purchaser, a like principal amount of debt securities of the Issuer issued under
the Indenture and identical in all material respects (including the existence of
restrictions on transfer under the Securities Act and the securities laws of the
several  states of the  United  States)  to the  Notes  (the  "Private  Exchange
Securities").  The Notes,  the  Exchange  Securities  and the  Private  Exchange
Securities are herein collectively called the "Securities".

         In connection with the Registered Exchange Offer, the Issuer shall:

         (a) mail to each Holder a copy of the  prospectus  forming  part of the
Exchange Offer  Registration  Statement,  together with an appropriate letter of
transmittal and related documents;

         (b) keep the  Registered  Exchange Offer open for not less than 30 days
(or  longer,  if required by  applicable  law) after the date notice  thereof is
mailed to the Holders;

         (c) utilize the services of a depositary  for the  Registered  Exchange
Offer with an address in the Borough of Manhattan,  The City of New York,  which
may be the Trustee or an affiliate of the Trustee;

         (d) permit Holders to withdraw  tendered Notes at any time prior to the
close  of  business,  New  York  time,  on the last  business  day on which  the
Registered Exchange Offer shall remain open; and

         (e)  otherwise comply with all applicable laws.

         As soon as practicable after the close of the Registered Exchange Offer
or Private Exchange, as the case may be, the Issuer shall:

         (x)  accept  for  exchange  all  the  Notes  validly  tendered  and not
withdrawn pursuant to the Registered Exchange Offer or the Private Exchange,  as
the  case  may be  (such  acceptance  constituting  the  "consummation"  of such
Registered Exchange Offer notwithstanding the fact that not all of the Notes may
have been so tendered);

         (y)  deliver to the Trustee for cancellation all the Notes so accepted
for exchange; and

         (z) cause the  Trustee to  authenticate  and  deliver  promptly to each
Holder which validly  tendered Notes,  Exchange  Securities or Private  Exchange
Securities,  as the case may be, equal in principal  amount to the Notes of such
Holder so accepted for exchange.

         The Indenture will provide that the Exchange  Securities subject to the
Indenture  will not be subject to the  transfer  restrictions  set forth in such
Indenture.  The  Indenture  will  also  provide  that  all the  Notes,  Exchange
Securities and Private Exchange  Securities  subject to such Indenture will vote
and  consent  together  on all  matters as one class and that none of the Notes,
Exchange  Securities or Private  Exchange  Securities  subject to such Indenture
will have the right to vote or consent as a separate  class from one  another on
any matter.

         Interest on each Exchange  Security or Private Exchange Security issued
pursuant to a Registered Exchange Offer or Private Exchange will accrue from the
last interest



<PAGE>

                                        4

payment  date on which  interest  was paid on the Note  surrendered  in exchange
therefor  or,  if no  interest  has  been  paid on such  Note,  from the date of
original issue of such Note.

         Each Holder  tendering  Notes in a Registered  Exchange  Offer shall be
required to represent to the Issuer that at the time of the consummation of such
Registered  Exchange Offer (i) any Exchange  Securities  received by such Holder
will be acquired in the ordinary course of business,  (ii) such Holder will have
no  arrangements  or  understanding  with  any  person  to  participate  in  the
distribution of the Notes or the Exchange  Securities  within the meaning of the
Securities  Act, (iii) such Holder is not an "affiliate," as defined in Rule 405
of the Securities Act, of the Issuer or if it is an affiliate,  such Holder will
comply  with  the  registration  and  prospectus  delivery  requirements  of the
Securities  Act  to  the  extent  applicable,  (iv)  if  such  Holder  is  not a
broker-dealer,  that it is not engaged in, and does not intend to engage in, the
distribution   of  the  Exchange   Securities  and  (v)  if  such  Holder  is  a
broker-dealer,  that it will receive Exchange  Securities for its own account in
exchange for Notes that were acquired as a result of market-making activities or
other trading  activities  and that it will be required to  acknowledge  that it
will  deliver a  prospectus  in  connection  with any  resale  of such  Exchange
Securities.

         Notwithstanding  any other  provisions  hereof,  the Issuer will ensure
that (i) the Exchange Offer Registration Statement and any amendment thereto and
any prospectus forming a part thereof and any supplement thereto complies in all
material  respects  with  the  Securities  Act and  the  rules  and  regulations
thereunder,  (ii) the Exchange  Offer  Registration  Statement and any amendment
thereto does not, when it becomes  effective,  contain an untrue  statement of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the statements therein not misleading and (iii) any prospectus
forming part of the Exchange Offer Registration Statement, and any supplement to
such prospectus, does not include an untrue statement of a material fact or omit
to state a material fact required to be stated  therein or necessary in order to
make the statements  therein, in the light of the circumstances under which they
were made, not misleading.

         2.  Shelf  Registration.  If,  (i)  because  of any change in law or in
applicable interpretations thereof by the staff of the Commission, the Issuer is
not  permitted to effect the  Registered  Exchange  Offer,  as  contemplated  by
Section 1 hereof,  (ii) the Registered  Exchange Offer is not consummated within
180 days of the Issue Date, (iii) any Initial Purchaser so requests with respect
to the Notes (or the Private  Exchange  Securities) not eligible to be exchanged
for Exchange  Securities in a Registered Exchange Offer and held by it following
consummation  of the  Registered  Exchange  Offers  or (iv) any  Holder of Notes
(other  than  an  Exchanging  Dealer)  is not  eligible  to  participate  in the
Registered  Exchange  Offer  or,  in the  case  of any  Holder  (other  than  an
Exchanging  Dealer) that  participates in the Registered  Exchange  Offer,  such
Holder does not receive freely tradeable Exchange  Securities on the date of the
exchange, the Issuer shall take the following actions:

         (a) The Issuer shall,  at its cost, as promptly as practicable  (but in
no event more than 30 days  after so  required  or  requested  pursuant  to this
Section 2) file with the Commission and thereafter shall use its best efforts to
cause to be declared  effective a  registration  statement  or  statements  (the
"Shelf   Registration   Statement"   and,   together  with  the  Exchange  Offer
Registration Statement, a "Registration Statement") on an appropriate form under
the  Securities  Act relating to the offer and sale of the  Transfer  Restricted
Securities (as defined in Section 6 hereof) by the Holders  thereof from time to
time in  accordance  with the  methods  of  distribution  set forth in the Shelf
Registration Statement



<PAGE>

                                        5

and Rule 415 under the Securities Act (hereinafter,  the "Shelf  Registration");
provided,  however,  that no Holder (other than an Initial  Purchaser)  shall be
entitled to have the  Securities  held by it covered by such Shelf  Registration
Statement unless such Holder agrees in writing to be bound by all the provisions
of this Agreement applicable to such Holder.

         (b)  The  Issuer   shall  use  its  best  efforts  to  keep  the  Shelf
Registration  Statement continuously effective in order to permit the prospectus
included therein to be lawfully delivered by the Holders of the Securities,  for
a period of two years (or for such longer period if extended pursuant to Section
3(j) below) from the date of its  effectiveness or such shorter period that will
terminate when all the Securities  covered by the Shelf  Registration  Statement
(i) have been sold  pursuant  thereto or (ii) are  eligible  for sale under Rule
144(k) under the Securities Act. The Issuer shall be deemed not to have used its
best  efforts  to keep the Shelf  Registration  Statement  effective  during the
requisite  period if it  voluntarily  takes any  action  (other  than any action
permitted  to be taken  under this  Agreement)  that would  result in Holders of
Securities  covered  thereby  not being  able to offer and sell such  Securities
during that period, unless such action is required by applicable law.

         (c)  Notwithstanding  any other  provisions  of this  Agreement  to the
contrary,  the  Issuer  shall  cause the Shelf  Registration  Statement  and the
related prospectus and any amendment or supplement  thereto, as of the effective
date of the Shelf Registration Statement, amendment or supplement, (i) to comply
in all material respects with the applicable  requirements of the Securities Act
and the rules and  regulations  of the  Commission  and (ii) not to contain  any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading.

         3. Registration  Procedures.  In connection with any Shelf Registration
contemplated by Section 2 hereof and, to the extent  applicable,  any Registered
Exchange Offer contemplated by Section 1 hereof, the following  provisions shall
apply:

         (a) The Issuer  shall (i) furnish to each Initial  Purchaser,  prior to
the filing thereof with the Commission, a copy of the Registration Statement and
each amendment thereof and each supplement,  if any, to the prospectus  included
therein and, in the event that an Initial Purchaser (with respect to any portion
of an unsold  allotment  from the  original  offering) is  participating  in the
Registered Exchange Offer or the Shelf Registration,  shall use its best efforts
to  reflect  in each such  document,  when so filed  with the  Commission,  such
comments as such  Initial  Purchaser  reasonably  and timely may  propose;  (ii)
include  the  information  set forth in Annex A hereto on the cover,  in Annex B
hereto in the  "Exchange  Offer  Procedures"  section  and the  "Purpose  of the
Exchange  Offer"  section  and in Annex C hereto in the  "Plan of  Distribution"
section of the  prospectus  forming a part of the  Exchange  Offer  Registration
Statement and include the  information set forth in Annex D hereto in the Letter
of Transmittal  delivered  pursuant to such Registered  Exchange Offer; (iii) if
requested by an Initial Purchaser, include the information required by Items 507
or 508 of  Regulation  S-K under  the  Securities  Act,  as  applicable,  in the
prospectus  forming a part of the Exchange Offer  Registration  Statement;  (iv)
include  within the  prospectus  contained  in the Exchange  Offer  Registration
Statement a section entitled "Plan of  Distribution,"  reasonably  acceptable to
the Initial Purchasers, which shall contain a summary statement of the positions
taken or  policies  made by the  staff of the  Commission  with  respect  to the
potential "underwriter" status of any broker-dealer that is the beneficial owner
(as defined in Rule 13d-3 under the Securities Exchange Act of 1934,



<PAGE>

                                        6

as  amended  (the  "Exchange  Act")) of  Exchange  Securities  received  by such
broker-dealer   in   such   Registered    Exchange   Offer   (a   "Participating
Broker-Dealer"),   whether  such   positions  or  policies  have  been  publicly
disseminated  by the staff of the Commission or such  positions or policies,  in
the reasonable  judgment of the Initial  Purchasers based upon advice of counsel
(which may be in-house counsel),  represent the prevailing views of the staff of
the Commission;  and (v) in the case of a Shelf Registration,  include the names
of  the  Holders,   who  propose  to  sell  Securities  pursuant  to  the  Shelf
Registration Statement, as selling securityholders.

         (b) The Issuer shall give written notice to the Initial Purchasers, the
Holders of the  Securities  and any  Participating  Broker-Dealer  from whom the
Issuer  has  received  prior  written  notice  that it  will be a  Participating
Broker-Dealer  in a Registered  Exchange Offer (which notice pursuant to clauses
(ii)-(v) hereof shall be accompanied by an instruction to suspend the use of the
prospectus until the requisite changes have been made):

         (i) when the Registration  Statement or any amendment  thereto has been
filed  with  the  Commission  and  when  the   Registration   Statement  or  any
post-effective amendment thereto has become effective;

         (ii)  of any request by the Commission for amendments or supplements to
the Registration  Statement or the prospectus included therein or for additional
information;

         (iii)  of the issuance by the Commission of any stop order suspending
the  effectiveness  of  the  Registration  Statement  or the  initiation  of any
proceedings for that purpose;

         (iv)  of  the  receipt  by  the  Issuer  or its  legal  counsel  of any
notification  with  respect  to  the  suspension  of  the  qualification  of the
Securities for sale in any  jurisdiction or the initiation or threatening of any
proceeding for such purpose; and

         (v) of the  happening  of any event  that  requires  the Issuer to make
changes  in the  Registration  Statement  or the  prospectus  in order  that the
Registration Statement or the prospectus does not contain an untrue statement of
a material fact nor omit to state a material fact required to be stated  therein
or necessary to make the statements  therein (in the case of the prospectus,  in
light of the circumstances under which they were made) not misleading.

         (c) The  Issuer  shall  make  every  reasonable  effort to  obtain  the
withdrawal  at  the  earliest   possible  time,  of  any  order  suspending  the
effectiveness of the Registration Statement.

         (d) The Issuer  shall  furnish to each  Holder of  Securities  included
within the coverage of the Shelf Registration, without charge, at least one copy
of the Shelf Registration  Statement and any  post-effective  amendment thereto,
including financial statements and schedules,  and, if the Holder so requests in
writing,  all  exhibits  thereto  (including  those,  if  any,  incorporated  by
reference).

         (e) The Issuer shall deliver to each Exchanging Dealer and each Initial
Purchaser, and to any other Holder who so requests, without charge, at least one
copy  of the  Exchange  Offer  Registration  Statement  and  any  post-effective
amendment thereto,  including  financial  statements and schedules,  and, if any
Initial Purchaser or any such



<PAGE>

                                        7

Holder  requests,   all  exhibits  thereto   (including  those  incorporated  by
reference).

         (f) The Issuer shall, during the Shelf Registration Period,  deliver to
each  Holder  of   Securities   included   within  the  coverage  of  the  Shelf
Registration,  without charge, as many copies of the prospectus  (including each
preliminary  prospectus)  included in the Shelf  Registration  Statement and any
amendment  or  supplement  thereto as such person may  reasonably  request.  The
Issuer consents,  subject to the provisions of this Agreement, to the use of the
prospectus or any amendment or supplement thereto by each of the selling Holders
of the  Securities  in connection  with the offering and sale of the  Securities
covered by the prospectus,  or any amendment or supplement thereto,  included in
the Shelf Registration Statement.

         (g) The Issuer shall deliver to each Initial Purchaser,  any Exchanging
Dealer,  any  Participating  Broker-Dealer  and such other  persons  required to
deliver a prospectus  following the Registered Exchange Offers,  without charge,
as  many  copies  of  the  final  prospectus  included  in  the  Exchange  Offer
Registration  Statement and any amendment or supplement  thereto as such persons
may reasonably request.  The Issuer consents,  subject to the provisions of this
Agreement,  to the use of the prospectus or any amendment or supplement  thereto
by any Initial Purchaser, if necessary, any Participating Broker-Dealer and such
other persons required to deliver a prospectus following the Registered Exchange
Offers in  connection  with the  offering  and sale of the  Exchange  Securities
covered by the prospectus,  or any amendment or supplement thereto,  included in
such Exchange Offer Registration Statement.

         (h) Prior to any public  offering  of the  Securities,  pursuant to any
Registration  Statement,  the Issuer shall register or qualify or cooperate with
the Holders of the Securities  included therein and their respective  counsel in
connection with the  registration or  qualification  of the Securities for offer
and sale under the  securities  or "blue sky" laws of such  states of the United
States as any Holder of the Securities reasonably requests in writing and do any
and all other acts or things necessary or advisable to enable the offer and sale
in such jurisdictions of the Securities covered by such Registration  Statement;
provided,  however,  that  the  Issuer  shall  not be  required  to (i)  qualify
generally to do business in any  jurisdiction  where it is not then so qualified
or (ii) take any action which would  subject them to general  service of process
or to taxation in any jurisdiction where it is not then so subject.

         (i) The Issuer shall  cooperate  with the Holders of the  Securities to
facilitate the timely preparation and delivery of certificates  representing the
Securities  to be  sold  pursuant  to any  Registration  Statement  free  of any
restrictive  legends and in such  denominations  and registered in such names as
the  Holders  may  request a  reasonable  period  of time  prior to sales of the
Securities pursuant to such Registration Statement.

         (j) Upon the occurrence of any event  contemplated  by paragraphs  (ii)
through  (v) of  Section  3(b)  above  during the period for which the Issuer is
required to maintain  an  effective  Registration  Statement,  the Issuer  shall
promptly  prepare  and  file a  post-effective  amendment  to  the  Registration
Statement or a supplement (by way of incorporation by reference from an Exchange
Act  report or  otherwise)  to the  related  prospectus  and any other  required
document so that, as thereafter  delivered to Holders of the Notes or purchasers
of Securities, the prospectus will not contain an untrue statement of a material
fact or omit to state  any  material  fact  required  to be  stated  therein  or
necessary to make the statements  therein,  in light of the circumstances  under
which they were made, not



<PAGE>

                                        8

misleading.  If the Issuer notifies the Initial  Purchasers,  the Holders of the
Securities  and  any  known  Participating   Broker-Dealer  in  accordance  with
paragraphs  (ii)  through  (v) of Section  3(b) above to suspend  the use of the
prospectus  until the requisite  changes to the prospectus  have been made, then
the Initial Purchasers, the Holders of the Securities and any such Participating
Broker-Dealers  shall  suspend  use  of  such  prospectus,  and  the  period  of
effectiveness of the Shelf  Registration  Statement provided for in Section 2(b)
above  (unless and until the  Securities  covered  thereby are eligible for sale
under Rule 144(k) under the Securities  Act) or the Exchange Offer  Registration
Statement provided for in Section 1 above, as the case may be, shall be extended
by the number of days from and  including  the date of the giving of such notice
to and  including  the date when the  Initial  Purchasers,  the  Holders  of the
Securities and any known  Participating  Broker-Dealer  shall have received such
amended or supplemented prospectus pursuant to this Section 3(j).

         (k) Not later than the effective  date of the  applicable  Registration
Statement,  the Issuer will provide  CUSIP  numbers for the Notes,  the Exchange
Securities or the Private Exchange  Securities,  as the case may be, and provide
the applicable  trustee with printed  certificates  for the Notes,  the Exchange
Securities  or the  Private  Exchange  Securities,  as the case may be, in forms
eligible for deposit with The Depository Trust Company.

         (l) The  Issuer  will  comply  with all  rules and  regulations  of the
Commission to the extent and so long as they are  applicable  to the  Registered
Exchange  Offers or the Shelf  Registration  and the Issuer will make  generally
available to the Issuer's  security holders (or otherwise  provide in accordance
with Section 11(a) of the Securities Act) an earnings  statement  satisfying the
provisions of Section 11(a) of the  Securities  Act, no later than 45 days after
the end of a  12-month  period  (or 90 days,  if such  period is a fiscal  year)
beginning with the first month of the Issuer's  first fiscal quarter  commencing
after the effective date of the  Registration  Statement,  which statement shall
cover such 12-month period.

         (m) The Issuer  shall cause the  Indenture  to be  qualified  under the
Trust Indenture Act of 1939, as amended,  in a timely manner and containing such
changes, if any, as shall be necessary for such qualification. In the event that
such  qualification  would  require the  appointment  of a new trustee under the
Indenture,  the Issuer shall  appoint a new trustee  thereunder  pursuant to the
applicable provisions of such Indenture.

         (n) The  Issuer  may  require  each  Holder  of  Securities  to be sold
pursuant  to the Shelf  Registration  Statement  to furnish  to the Issuer  such
information  regarding the Holder,  his or her  ownership of Securities  and the
distribution  of the  Securities as the Issuer may from time to time  reasonably
require for inclusion in the Shelf  Registration  Statement,  and the Issuer may
exclude  from such  registration  the  Securities  of any  Holder  that fails to
furnish such information within a reasonable time after receiving such request.

         (o) The Issuer shall enter into such customary agreements (including if
requested an  underwriting  agreement in customary form) and take all such other
action,  if any, as any Holder of the  Securities  shall  reasonably  request in
order to facilitate  the  disposition  of the  Securities  pursuant to any Shelf
Registration.

         (p) In the case of any Shelf  Registration,  the Issuer  shall (i) make
reasonably  available  for  inspection  by the  Holders of the  Securities,  any
underwriter  participating in any disposition pursuant to the Shelf Registration
Statement and any attorney, accountant or other agent retained by the Holders of
the Securities or any such underwriter all relevant



<PAGE>

                                        9

financial and other records, pertinent corporate documents and properties of the
Issuer and (ii) cause the Issuer's officers, directors,  employees,  accountants
and  auditors to supply all  relevant  information  reasonably  requested by the
Holders of the Securities or any such underwriter, attorney, accountant or agent
in connection with the Shelf Registration  Statement,  in each case, as shall be
reasonably   necessary  to  enable  such   persons,   to  conduct  a  reasonable
investigation  within the meaning of Section 11 of the Securities Act; provided,
however,  that the  foregoing  inspection  and  information  gathering  shall be
coordinated  on behalf  of the  Initial  Purchasers  by you and on behalf of the
other parties,  by one counsel designated by and on behalf of such other parties
as  described  in  Section  4  hereof;  provided,  further,  that  any  records,
documents,  properties  or  information  that are  designated  by the  Issuer as
confidential at the time of delivery of such records,  documents,  properties or
information shall be kept confidential by such persons, unless (i) such records,
documents,  properties  or  information  are in the public  domain or  otherwise
publicly available,  (ii) disclosure of such records,  documents,  properties or
information is required by court or administrative  order or (iii) disclosure of
such records,  documents,  properties or information,  in the written opinion of
counsel  to such  person,  is  otherwise  required  by law  (including,  without
limitation, pursuant to the requirements of the Securities Act).

         (q) In the case of any Shelf  Registration,  the Issuer if requested by
any Holder of Securities covered thereby, shall cause (i) its counsel to deliver
an opinion and updates  thereof  relating to the  Securities  in customary  form
addressed  to such Holders and the managing  underwriters,  if any,  thereof and
dated,  in the case of the initial  opinion,  the  effective  date of such Shelf
Registration  Statement  (it being agreed that the matters to be covered by such
opinion  shall  include,  without  limitation,  the due  incorporation  and good
standing of the Issuer and its subsidiaries;  the due  authorization,  execution
and delivery of the relevant  agreement of the type  referred to in Section 3(o)
hereof; the due authorization,  execution,  authentication and issuance, and the
validity  and  enforceability,  of the  applicable  Securities;  the  absence of
governmental  approvals  required to be obtained  in  connection  with the Shelf
Registration Statement,  the offering and sale of the applicable Securities,  or
any agreement of the type referred to in Section 3(o) hereof;  the compliance as
to form of such Shelf Registration  Statement and any documents  incorporated by
reference  therein and of the Indentures with the requirements of the Securities
Act and the  Trust  Indenture  Act,  respectively;  and,  as of the  date of the
opinion and as of the effective date of the Shelf Registration Statement or most
recent  post-effective  amendment thereto,  as the case may be, the absence from
such Shelf Registration  Statement and the prospectus  included therein, as then
amended  or  supplemented,  and from any  documents  incorporated  by  reference
therein of an untrue  statement  of a  material  fact or the  omission  to state
therein a material fact  required to be stated  therein or necessary to make the
statements  therein not  misleading (in the case of any such  documents,  in the
light of the  circumstances  existing at the time that such documents were filed
with the Commission  under the Exchange  Act);  (ii) its officers to execute and
deliver all customary  documents and certificates and updates thereof reasonably
requested  by any  underwriters  of the  applicable  Securities  and  (iii)  its
independent  public  accountants  to  provide  to  the  selling  Holders  of the
applicable Securities and any underwriter therefor a comfort letter in customary
form and covering matters of the type customarily  covered in comfort letters in
connection  with  primary   underwritten   offerings,   subject  to  receipt  of
appropriate  documentation as contemplated,  and only if permitted, by Statement
of Auditing Standards No. 72.

         (r) In the case of the Registered  Exchange  Offer, if requested by any
Initial  Purchaser or any known  Participating  Broker-Dealer,  the Issuer shall
cause (i) its counsel



<PAGE>

                                       10

to deliver to such  Initial  Purchaser  or such  Participating  Broker-Dealer  a
signed  opinion in the form set forth in Section 6(a) of the Purchase  Agreement
with such  changes as are  customary in  connection  with the  preparation  of a
Registration Statement and (ii) its independent public accountants to deliver to
such Initial Purchaser or such Participating  Broker-Dealer a comfort letter, in
customary  form,  meeting the  requirements  as to the substance  thereof as set
forth in Sections 8(a) of the Purchase Agreement, with appropriate date changes.

         (s) If a  Registered  Exchange  Offer or a  Private  Exchange  is to be
consummated,  upon  delivery  of the Notes by  Holders to the Issuer (or to such
other Person as directed by the Issuer) in exchange for the Exchange  Securities
or the Private Exchange  Securities,  as the case may be, the Issuer shall mark,
or cause to be  marked,  on the Notes so  exchanged  that  such  Notes are being
canceled  in  exchange  for the  Exchange  Securities  or the  Private  Exchange
Securities, as the case may be; in no event shall the Notes be marked as paid or
otherwise satisfied.

         (t) The  Issuer  shall (a) if the Notes  have been  rated  prior to the
initial  sale of such Notes,  use its best  efforts to confirm such ratings will
apply to the Securities covered by a Registration Statement, or (b) if the Notes
were not previously  rated,  use  commercially  reasonable  efforts to cause the
Securities covered by a Registration  Statement to be rated with the appropriate
rating agencies, if so requested by Holders of a majority in aggregate principal
amount of Securities covered by such Registration  Statement, or by the managing
underwriters, if any.

         (u) In the event that any  broker-dealer  registered under the Exchange
Act  shall   underwrite  any  Securities  or  participate  as  a  member  of  an
underwriting  syndicate or selling group or "assist in the distribution" (within
the meaning of the  Conduct  Rules of the  National  Association  of  Securities
Dealers, Inc. ("NASD")) thereof, whether as a Holder of such Securities or as an
underwriter,  a  placement  or sales  agent or a broker  or  dealer  in  respect
thereof,  or otherwise,  the Issuer shall assist such broker-dealer in complying
with the requirements of such Conduct Rules, including,  without limitation,  by
(i) if Rule 2720 thereto shall so require,  engaging (solely, except in the case
of  an  Initial  Purchaser,  at  such  broker-dealer's   expense)  a  "qualified
independent  underwriter"  (as  defined  in Rule  2720)  to  participate  in the
preparation  of the  Registration  Statement  relating  to such  Securities,  to
exercise usual standards of due diligence in respect thereto and, if any portion
of the offering  contemplated by such Registration  Statement is an underwritten
offering or is made through a placement or sales agent,  to recommend  the yield
of such Securities, (ii) indemnifying any such qualified independent underwriter
to the  extent of the  indemnification  of  underwriters  provided  in Section 5
hereof and (iii)  providing  such  information to such  broker-dealer  as may be
required in order for such  broker-dealer to comply with the requirements of the
Rules of Fair Practice of the NASD.

         (v) The  Issuer  shall use its best  efforts  to take all  other  steps
necessary to effect the registration of the Securities covered by a Registration
Statement contemplated hereby.

         4. Registration  Expenses.  The Issuer shall bear all fees and expenses
incurred by the Issuer in connection  with the  performance  of its  obligations
under  Sections  1 through 3 hereof,  whether or not the  respective  Registered
Exchange Offer or a Shelf  Registration is filed or becomes  effective,  and, in
the event of a Shelf  Registration,  shall bear or reimburse  the Holders of the
Securities covered thereby for the reasonable fees and disbursements of one firm
of counsel designated by the Holders of a majority in principal


<PAGE>

                                       11

amount of the  Securities  covered  thereby to act as counsel for the Holders of
the Securities in connection therewith.  Each Holder of the Securities shall pay
all underwriting  discounts, if any, and commissions and transfer taxes, if any,
relating to the sale or disposition of such Holder's Securities.

         5.  Indemnification.  (a) The  Issuer  agrees  to  indemnify  and  hold
harmless each Holder of the Securities, any Participating Broker-Dealer and each
person,  if any, who controls  such Holder or such  Participating  Broker-Dealer
within the meaning of the Securities  Act or the Exchange Act (each Holder,  any
Participating  Broker-Dealer  and  such  controlling  persons  are  referred  to
collectively as the "Indemnified  Parties") from and against any losses, claims,
damages or  liabilities,  joint or several,  or any  actions in respect  thereof
(including,  but not limited to, any losses,  claims,  damages,  liabilities  or
actions  relating  to  purchases  and  sales of the  Securities)  to which  each
Indemnified  Party may become subject under the Securities Act, the Exchange Act
or otherwise,  insofar as such losses, claims,  damages,  liabilities or actions
arise out of or are based upon any untrue  statement or alleged untrue statement
of a material fact contained in a Registration Statement or prospectus or in any
amendment or supplement thereto or in any preliminary  prospectus  relating to a
Shelf Registration,  or arise out of, or are based upon, the omission or alleged
omission  to state  therein a material  fact  required  to be stated  therein or
necessary to make the statements therein not misleading, and shall reimburse, as
incurred,  the  Indemnified  Parties for any legal or other expenses  reasonably
incurred by them in connection  with  investigating  or defending any such loss,
claim, damage, liability or action in respect thereof;  provided,  however, that
(i) the  Issuer  shall not be liable  in any such case to the  extent  that such
loss,  claim,  damage or  liability  arises  out of or is based  upon any untrue
statement or alleged untrue  statement or omission or alleged omission made in a
Registration  Statement or prospectus or in any amendment or supplement  thereto
or in any preliminary  prospectus  relating to a Shelf  Registration in reliance
upon and in conformity  with written  information  pertaining to such Holder and
furnished  to the  Issuer  by or on  behalf  of  such  Holder  specifically  for
inclusion  therein and (ii) with respect to any untrue  statement or omission or
alleged untrue statement or omission made in any preliminary prospectus relating
to a Shelf Registration  Statement,  the indemnity  agreement  contained in this
subsection  (a) shall not inure to the  benefit of any  Holder or  Participating
Broker- Dealer from whom the person asserting any such losses,  claims,  damages
or  liabilities  purchased  the  Securities  concerned,  to  the  extent  that a
prospectus  relating to such  Securities  was  required to be  delivered by such
Holder or  Participating  Broker-Dealer  under the  Securities Act in connection
with such purchase and any such loss, claim,  damage or liability of such Holder
or Participating  Broker-Dealer results from the fact that there was not sent or
given to such  person,  at or prior to the written  confirmation  of the sale of
such Securities to such person, a copy of the final prospectus if the Issuer had
previously   furnished   copies   thereof  to  such   Holder  or   Participating
Broker-Dealer;  provided further, however, that this indemnity agreement will be
in  addition  to any  liability  which the  Issuer  may  otherwise  have to such
Indemnified Party. The Issuer shall also indemnify underwriters,  their officers
and directors and each person who controls such underwriters  within the meaning
of the  Securities  Act or the Exchange Act to the same extent as provided above
with  respect  to the  indemnification  of the  Holders  of  the  Securities  if
requested by such Holders.

         (b) Each Holder of the  Securities,  severally  and not  jointly,  will
indemnify and hold harmless the Issuer and each person, if any, who controls the
Issuer  within the meaning of the  Securities  Act or the  Exchange Act from and
against any losses,  claims,  damages or  liabilities  or any actions in respect
thereof, to which the Issuer or any such



<PAGE>

                                       12

controlling person may become subject under the Securities Act, the Exchange Act
or otherwise,  insofar as such losses, claims,  damages,  liabilities or actions
arise out of or are based upon any untrue  statement or alleged untrue statement
of a material fact contained in a Registration Statement or prospectus or in any
amendment or supplement thereto or in any preliminary  prospectus  relating to a
Shelf  Registration,  or arise out of or are based upon the  omission or alleged
omission  to state  therein a material  fact  necessary  to make the  statements
therein  not  misleading,  but in each case only to the  extent  that the untrue
statement  or  omission or alleged  untrue  statement  or  omission  was made in
reliance  upon and in  conformity  with written  information  pertaining to such
Holder and  furnished to the Issuer by or on behalf of such Holder  specifically
for inclusion  therein;  and,  subject to the limitation  set forth  immediately
preceding this clause, shall reimburse, as incurred, the Issuer for any legal or
other expenses  reasonably incurred by the Issuer or any such controlling person
in connection with investigating or defending any loss, claim, damage, liability
or action in respect  thereof.  This indemnity  agreement will be in addition to
any liability  which such Holder may otherwise  have to the Issuer or any of its
controlling persons.

         (c) Promptly after receipt by an indemnified party under this Section 5
of  notice  of the  commencement  of  any  action  or  proceeding  (including  a
governmental investigation),  such indemnified party will, if a claim in respect
thereof is to be made  against  the  indemnifying  party  under this  Section 5,
notify the indemnifying party of the commencement  thereof;  but the omission so
to  notify  the  indemnifying  party  will  not,  in  any  event,   relieve  the
indemnifying  party from any obligations to any indemnified party other than the
indemnification  obligation  provided in paragraph (a) or (b) above. In case any
such  action is brought  against any  indemnified  party,  and it  notifies  the
indemnifying party of the commencement  thereof,  the indemnifying party will be
entitled to  participate  therein  and, to the extent that it may wish,  jointly
with any other  indemnifying  party  similarly  notified,  to assume the defense
thereof,  with counsel  reasonably  satisfactory to such indemnified  party (who
shall not, except with the consent of the  indemnified  party, be counsel to the
indemnifying  party),  and  after  notice  from the  indemnifying  party to such
indemnified  party  of  its  election  so to  assume  the  defense  thereof  the
indemnifying  party  will not be liable to such  indemnified  party  under  this
Section  5 for any  legal or other  expenses,  other  than  reasonable  costs of
investigation,  subsequently  incurred by such  indemnified  party in connection
with the defense thereof. No indemnifying party shall, without the prior written
consent of the  indemnified  party,  effect  any  settlement  of any  pending or
threatened  action in  respect of which any  indemnified  party is or could have
been a party and indemnity could have been sought  hereunder by such indemnified
party  unless  such  settlement  includes  an  unconditional   release  of  such
indemnified  party from all liability on any claims that are the subject  matter
of such action.

         (d)  If  the  indemnification   provided  for  in  this  Section  5  is
unavailable  or  insufficient  to  hold  harmless  an  indemnified  party  under
subsections (a) or (b) above, then each  indemnifying  party shall contribute to
the amount paid or payable by such indemnified  party as a result of the losses,
claims,  damages or liabilities (or actions in respect  thereof)  referred to in
subsection (a) or (b) above (i) in such  proportion as is appropriate to reflect
the relative benefits  received by the indemnifying  party or parties on the one
hand and the indemnified  party on the other from the exchange of the respective
Notes,  pursuant to the  relevant  Registered  Exchange  Offers,  or (ii) if the
allocation  provided by the foregoing  clause (i) is not permitted by applicable
law, in such  proportion  as is  appropriate  to reflect  not only the  relative
benefits  referred  to in clause  (i) above but also the  relative  fault of the
indemnifying party or parties on the one hand and the



<PAGE>

                                       13

indemnified  party on the other in connection  with the  statements or omissions
that  resulted in such losses,  claims,  damages or  liabilities  (or actions in
respect  thereof) as well as any other relevant  equitable  considerations.  The
relative  fault of the parties  shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged  omission to state a material  fact  relates to  information
supplied by the Issuer on the one hand or such Holder or such other  indemnified
party,  as the case may be, on the  other,  and the  parties'  relative  intent,
knowledge,  access to  information  and  opportunity  to correct or prevent such
statement or omission.  The amount paid by an  indemnified  party as a result of
the losses,  claims, damages or liabilities referred to in the first sentence of
this  subsection  (d)  shall be deemed to  include  any legal or other  expenses
reasonably  incurred by such indemnified party in connection with  investigating
or defending  any action or claim which is the subject of this  subsection  (d).
Notwithstanding  any other  provision of this Section  5(d),  the Holders of the
Securities  shall not be  required  to  contribute  any  amount in excess of the
amount by which the net  proceeds  received by such Holders from the sale of the
Securities  pursuant to a Registration  Statement  exceeds the amount of damages
which such Holders have  otherwise been required to pay by reason of such untrue
or alleged untrue statement or omission or alleged omission. No person guilty of
fraudulent  misrepresentation  (within  the  meaning  of  Section  11(f)  of the
Securities  Act) shall be entitled to  contribution  from any person who was not
guilty of such fraudulent misrepresentation. For purposes of this paragraph (d),
each person,  if any, who controls such indemnified  party within the meaning of
the  Securities  Act  or  the  Exchange  Act  shall  have  the  same  rights  to
contribution as such indemnified party and each person, if any, who controls the
Issuer within the meaning of the  Securities  Act or the Exchange Act shall have
the same rights to contribution as the Issuer.

         (e) The  agreements  contained in this Section 5 shall survive the sale
of the Securities pursuant to a Registration  Statement and shall remain in full
force  and  effect,  regardless  of any  termination  or  cancellation  of  this
Agreement or any investigation made by or on behalf of any indemnified party.

         6.  Additional  Interest  Under Certain  Circumstances.  (a) Additional
interest (the  "Additional  Interest")  with respect to the Securities  shall be
assessed  as follows if any of the  following  events  occur (each such event in
clauses (i) through (iii) below a "Registration Default"):

         (i) If by November 21, 1997,  neither the Exchange  Offer  Registration
Statement  nor a  Shelf  Registration  Statement  relating  to  such  series  of
Securities has been filed with the Commission;

         (ii) If by  April  6,  1998,  neither  the  Registered  Exchange  Offer
relating to such series of  Securities is  consummated  nor, if required in lieu
thereof, a Shelf Registration Statement relating to such series of Securities is
declared effective by the Commission; or

         (iii) If,  after April 6, 1998,  and after  either the  Exchange  Offer
Registration  Statement  or the Shelf  Registration  Statement  relating to such
series of  Securities  is declared  effective  (A) such  Registration  Statement
thereafter ceases to be effective (except as permitted in paragraph (b)); or (B)
such  Registration  Statement  or the  related  prospectus  ceases  to be usable
(except as permitted in paragraph  (b)) in  connection  with resales of Transfer
Restricted Securities during the periods specified herein because either (1) any
event  occurs as a result of which the related  prospectus  forming part of such
Registration



<PAGE>

                                       14

Statement would include any untrue statement of a material fact or omit to state
any material fact necessary to make the  statements  therein in the light of the
circumstances  under  which  they were made not  misleading,  or (2) it shall be
necessary  to amend  such  Registration  Statement  or  supplement  the  related
prospectus,  to  comply  with  the  Securities  Act or the  Exchange  Act or the
respective  rules  thereunder (such period of time during which the Registration
Statement  is  not  effective  or the  Registration  Statement  or  the  related
prospectus is not useable being referred to as a "Blackout Period").

Additional  Interest shall accrue on the Securities  covered by the Registration
Statement to which the Registration  Default relates over and above the interest
set forth in the title of such  Securities  from and including the date on which
any such Registration Default shall occur to but excluding the date on which all
such Registration Defaults relating to the Securities have been cured, at a rate
of 0.50% per annum (the "Additional Interest Rate").

         (b) A Blackout Period referred to in Section  6(a)(iii) shall be deemed
not to be a Registration Default in relation to a Registration  Statement or the
related prospectus if (i) the Blackout Period has occurred solely as a result of
(x)  the  filing  of a  post-effective  amendment  to  such  Shelf  Registration
Statement to incorporate  annual audited  financial  information with respect to
the Issuer where such post-effective amendment is not yet effective and needs to
be declared effective to permit Holders to use the related prospectus or (y) the
occurrence of other  material  events with respect to the Issuer that would need
to be described in such  Registration  Statement or the related  prospectus  and
(ii) in the case of clause (y),  the Issuer is  proceeding  promptly and in good
faith to amend or  supplement  (including by way of filing  documents  under the
Exchange  Act  which  are   incorporated  by  reference  into  the  Registration
Statement) such Registration  Statement and related  prospectus to describe such
events; provided, however, that in any case if such Blackout Period occurs for a
continuous  period in excess of 45 days, a Registration  Default shall be deemed
to have occurred on the 46th day of such Blackout Period and Additional Interest
shall be  payable  in  accordance  with the  above  paragraph  from the day such
Registration  Default occurs until such  Registration  Default is cured or until
the  Company  is no longer  required  pursuant  to this  Agreement  to keep such
Registration  Statement  effective or such Registration  Statement or Prospectus
useable.

         (c) Any amounts of Additional  Interest due pursuant to clause  (a)(i),
(a)(ii)  or  (a)(iii)  of  Section  6 above  will be  payable  in cash,  on each
SemiAnnual  Interest  Accrual Date or Interest  Payment Date (each as defined in
the  Indenture),  as the  case may be,  commencing  with  the  first  SemiAnnual
Interest Accrual Date following the applicable  Registration Default. The amount
of Additional Interest will be determined by multiplying the Additional Interest
Rate by the Accumulated  Amount (as defined in the Indenture) of such Securities
on the relevant Additional Interest payment date, multiplied by a fraction,  the
numerator  of which is the  number of days  such  Additional  Interest  Rate was
applicable  during  such  period  (determined  on the  basis of a  360-day  year
comprised  of  twelve  30-day  months),  and the  denominator  of  which is 360.
Payments of Additional Interest on the Securities will be made to the Holders of
such  Securities on the regular record date  immediately  preceding the relevant
Additional Interest payment date.

         (d) "Transfer Restricted  Securities" means each Security until (i) the
date on  which  such  Security  has been  exchanged  by a  person  other  than a
broker-dealer  for a freely  transferrable  Exchange  Security in the Registered
Exchange Offer,  (ii) following the exchange by a broker-dealer  in a Registered
Exchange Offer of such Security for an Exchange Security, the date on which such
Exchange Security is sold to a purchaser who



<PAGE>

                                       15

receives from such  broker-dealer on or prior to the date of such sale a copy of
the prospectus contained in the Exchange Offer Registration Statement, (iii) the
date on which such Security has been effectively registered under the Securities
Act and disposed of in accordance with the Shelf Registration  Statement or (iv)
the date on which such Security is  distributed  to the public  pursuant to Rule
144 under the  Securities  Act or is saleable  pursuant to Rule 144(k) under the
Securities Act.

         7. Rules 144 and 144A.  The Issuer  shall use its best  efforts to file
the reports required to be filed by it under the Securities Act and the Exchange
Act in a timely  manner and,  if at any time the Issuer is not  required to file
such  reports,  it will,  upon the request of any Holder of Transfer  Restricted
Securities,  make publicly  available other  information so long as necessary to
permit  sales of its  securities  pursuant  to Rules  144 and 144A.  The  Issuer
covenants  that it will  take such  further  action  as any  Holder of  Transfer
Restricted  Securities may reasonably  request,  all to the extent required from
time to time to  enable  such  Holder  to sell  Transfer  Restricted  Securities
without  registration  under the  Securities  Act within the  limitation  of the
exemptions  provided by Rules 144 and 144A  (including the  requirements of Rule
144A(d)(4)).  The Issuer will provide a copy of this  Agreement  to  prospective
purchasers of Notes (or Private Exchange Securities) identified to the Issuer by
the Initial Purchasers upon request.  Upon the request of any Holder of Transfer
Restricted  Securities,  the  Issuer  shall  deliver  to such  Holder a  written
statement as to whether it has complied with such requirements.  Notwithstanding
the  foregoing,  nothing in this Section 7 shall be deemed to require the Issuer
to register any of its securities pursuant to the Exchange Act.

         8.  Underwritten  Registrations.  If  any of  the  Transfer  Restricted
Securities  covered by any Shelf  Registration are to be sold in an underwritten
offering,  the investment  banker or investment  bankers and manager or managers
that will administer the offering ("Managing  Underwriters") will be selected by
the  Holders  of a  majority  in  aggregate  principal  amount of such  Transfer
Restricted Securities to be included in such offering.

         No person may participate in any  underwritten  registration  hereunder
unless  such  person  (i)  agrees  to sell  such  person's  Transfer  Restricted
Securities on the basis  reasonably  provided in any  underwriting  arrangements
approved by the persons entitled hereunder to approve such arrangements and (ii)
completes  and executes  all  questionnaires,  powers of attorney,  indemnities,
underwriting  agreements and other documents reasonably required under the terms
of such underwriting arrangements.

         9.  Miscellaneous.

         (a) Amendments and Waivers. The provisions of this Agreement may not be
amended,  modified or  supplemented,  and waivers or consents to departures from
the  provisions  hereof may not be given,  except by the Issuer and the  written
consent of the  Holders  of a majority  in  principal  amount of the  Securities
affected by such amendment, modification, supplement, waiver or consents.

         (b)  Notices.  All notices  and other  communications  provided  for or
permitted hereunder shall be made in writing by hand delivery, first-class mail,
facsimile transmission, or air courier which guarantees overnight delivery:

                  (1)  if to a Holder of the Securities, at the most current 
address given by



<PAGE>

                                       16

such Holder to the Issuer in  accordance  with the  provisions  of this  Section
9(b).
                  (2) if to the Initial Purchasers, at the following address:

                           Credit Suisse First Boston Corporation
                           Eleven Madison Avenue
                           New York, NY 10010
                           Fax No.:  (212) 318-0532
                           Attention:  Transactions Advisory Group

         with a copy to:

                           Cravath, Swaine & Moore
                           Worldwide Plaza
                           825 Eighth Avenue
                           New York, NY 10019-7475
                           Attention:  Kris F. Heinzelman

                  (3)      if to the Issuer, at the following address:

                           WinStar Communications, Inc.
                           230 Park Avenue
                           New York, NY 10169
                           Fax No.: (212) 922-1637
                           Attention:  Timothy Graham

         with a copy to:

                           Graubard Mollen & Miller
                           600 Third Avenue
                           New York, NY  10016
                           Attention:  David A. Miller

         All such notices and  communications  shall be deemed to have been duly
given:  at the time delivered by hand, if personally  delivered;  three business
days after being deposited in the mail, postage prepaid, if mailed; when receipt
is acknowledged by recipient's  facsimile machine operator, if sent by facsimile
transmission;  and on the  day  delivered,  if  sent by  overnight  air  courier
guaranteeing next day delivery.

         (c) No  Inconsistent  Agreements.  The Issuer  has not,  as of the date
hereof,  entered into, nor shall they, on or after the date hereof,  enter into,
any  agreement  with respect to its  securities  that is  inconsistent  with the
rights granted to the Holders herein or otherwise  conflicts with the provisions
hereof.

         (d)  Successors and Assigns.  This Agreement shall be binding upon the
Issuer and its successors and assigns.

         (e)  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts and by the parties hereto in separate  counterparts,  each of which
when so  executed  shall be  deemed  to be an  original  and all of which  taken
together shall constitute one and the same agreement.



<PAGE>

                                       17

         (f) Headings.  The headings in this  Agreement are for  convenience  of
reference only and shall not limit or otherwise affect the meaning hereof.

         (g) Governing Law. THIS  AGREEMENT  SHALL BE GOVERNED BY, AND CONSTRUED
IN  ACCORDANCE  WITH,  THE  LAW OF THE  STATE  OF NEW  YORK  WITHOUT  REGARD  TO
PRINCIPLES OF CONFLICTS OF LAWS.

         (h)  Severability.  If any  one or  more  of the  provisions  contained
herein, or the application thereof in any circumstance, is held invalid, illegal
or  unenforceable,  the  validity,  legality  and  enforceability  of  any  such
provision  in every other  respect  and of the  remaining  provisions  contained
herein shall not be affected or impaired thereby.

         (i) Securities Held by the Issuer.  Whenever the consent or approval of
Holders of a specified  percentage of principal amount of Securities is required
hereunder,  Securities  held  by  the  Issuer  or  its  affiliates  (other  than
subsequent  Holders of  Securities if such  subsequent  Holders are deemed to be
affiliates  solely by reason of their holdings of such Securities)  shall not be
counted in determining whether such consent or approval was given by the Holders
of such required percentage.




<PAGE>

                                       18

         If the  foregoing  is in  accordance  with  your  understanding  of our
agreement,  please sign and return to the Issuer a counterpart hereof, whereupon
this instrument,  along with all  counterparts,  will become a binding agreement
among the  several  Initial  Purchasers  and the Issuer in  accordance  with its
terms.

                                             Very truly yours,

                                             WINSTAR COMMUNICATIONS, INC.,


                                             By:
                                                Name:
                                                Title:



The foregoing  Registration Rights Agreement is hereby confirmed and accepted as
of the date first above written.

CREDIT SUISSE FIRST BOSTON CORPORATION
BT ALEX BROWN INCORPORATED

By:  CREDIT SUISSE FIRST BOSTON CORPORATION




By:
  Name:
  Title:




<PAGE>


                                                                       ANNEX A

         Each  broker-dealer  that  receives  Exchange  Securities  for  its own
account  pursuant to an Exchange Offer must  acknowledge  that it will deliver a
prospectus in connection with any resale of such Exchange Securities. The Letter
of Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning  of the  Securities  Act.  This  Prospectus,  as it may  be  amended  or
supplemented  from time to time,  may be used by a  broker-dealer  in connection
with  resales of Exchange  Securities  received in exchange for Notes where such
Notes  were  acquired  by  such  broker-dealer  as  a  result  of  market-making
activities or other trading activities. The Issuer has agreed that, for a period
of 180 days after the Expiration Date (as defined  herein),  they will make this
Prospectus  available to any  broker-dealer  for use in connection with any such
resale. See "Plan of Distribution."


                                       A-1

<PAGE>

                                                                    ANNEX B


         Each  broker-dealer  that  receives  Exchange  Securities  for  its own
account  in  exchange  for  Notes,  where  such  Notes  were  acquired  by  such
broker-dealer  as  a  result  of  market-making   activities  or  other  trading
activities,  must  acknowledge  that it will deliver a prospectus  in connection
with any resale of such Exchange Securities. See "Plan of Distribution."



                                       B-1

<PAGE>


                                      
                                                                   ANNEX C


PLAN OF DISTRIBUTION

         Each  broker-dealer  that  receives  Exchange  Securities  for  its own
account  pursuant to an Exchange Offer must  acknowledge  that it will deliver a
prospectus  in  connection  with any resale of such  Exchange  Securities.  This
Prospectus,  as it may be amended or supplemented from time to time, may be used
by a broker-dealer in connection with resales of Exchange Securities received in
exchange for Notes where such Notes were  acquired as a result of  market-making
activities or other trading activities. The Issuer has agreed that, for a period
of 180 days after the Expiration Date, it will make this prospectus,  as amended
or supplemented,  available to any  broker-dealer for use in connection with any
such resale. In addition,  until , 199 , all dealers  effecting  transactions in
the Exchange Securities may be required to deliver a prospectus.
(1)

         The Issuer  will not  receive  any  proceeds  from any sale of Exchange
Securities by broker-dealers. Exchange Securities received by broker-dealers for
their own account pursuant to an Exchange Offer may be sold from time to time in
one  or  more  transactions  in  the  over-the-counter   market,  in  negotiated
transactions,  through the writing of options on the  Exchange  Securities  or a
combination of such methods of resale,  at market prices  prevailing at the time
of resale,  at prices  related to such  prevailing  market  prices or negotiated
prices.  Any such  resale may be made  directly to  purchasers  or to or through
brokers or dealers who may receive  compensation  in the form of  commissions or
concessions  from any such  broker-dealer or the purchasers of any such Exchange
Securities.  Any  broker-dealer  that  resells  Exchange  Securities  that  were
received by it for its own account  pursuant to an Exchange Offer and any broker
or dealer that participates in a distribution of such Exchange Securities may be
deemed to be an  "underwriter"  within the meaning of the Securities Act and any
profit  on any  such  resale  of  Exchange  Securities  and  any  commission  or
concessions  received  by any such  persons  may be  deemed  to be  underwriting
compensation under the Securities Act. The Letter of Transmittal states that, by
acknowledging   that  it  will  deliver  and  by  delivering  a  prospectus,   a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.

     For a period of 180 days after the Expiration Date the Issuer will promptly
send  additional  copies of this  Prospectus  and any amendment or supplement to
this Prospectus to any broker-dealer  that requests such documents in the Letter
of  Transmittal.  The Issuer has agreed to pay all  expenses  incidental  to the
Exchange  Offers  (including  the  reasonable  expenses  of one  counsel for the
Holders of the Securities)  other than commissions or concessions of any brokers
or dealers and will  indemnify  the  Holders of the  Securities  (including  any
broker-dealers)  against certain  liabilities,  including  liabilities under the
Securities Act.

- --------
(1)  In  addition,  the legend  required by Item 502(e) of  Regulation  S-K will
     appear on the back cover page of the Exchange Offer prospectus.


                                       C-1

<PAGE>

                                                                    ANNEX D


|_|      CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE
         10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY
         AMENDMENTS OR SUPPLEMENTS THERETO.

                  Name:

                  Address:



If the undersigned is not a broker-dealer, the undersigned represents that it is
not  engaged  in, and does not intend to engage in, a  distribution  of Exchange
Securities.  If the  undersigned is a broker-dealer  that will receive  Exchange
Securities  for its own  account in exchange  for Notes that were  acquired as a
result of market-making activities or other trading activities,  it acknowledges
that it will deliver a prospectus in connection with any resale of such Exchange
Securities;  however,  by so acknowledging  and by delivering a prospectus,  the
undersigned will not be deemed to admit that it is an  "underwriter"  within the
meaning of the Securities Act.


                                       D-1

<PAGE>


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