WINSTAR COMMUNICATIONS INC
8-K, 1998-03-30
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)           March 17, 1998
                                                           --------------


                          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

                                 Page 1 of Pages


<PAGE>



Item 5.           Other Events

         In March 1998, WinStar  Communications,  Inc.  ("WinStar" or "Company")
and a subsidiary received net proceeds of approximately  $629.6 million from the
sale  of  certain  of the  Company's  securities  in the  institutional  private
placements  described  below.  WinStar  intends to use the  proceeds to fund the
expansion of the Company's telecommunications and other operations.

Preferred Stock Placement

         On March 17,  1998,  WinStar and its wholly owned  subsidiary,  WinStar
Multichannel  Corp., sold an aggregate of 4,000,000 shares of WinStar's Series D
7% Senior Cumulative  Convertible  Preferred Stock  ("Preferred  Shares") for an
aggregate purchase price of $200.0 million ("Preferred Stock Placement").

         General

         The sale was made to Credit  Suisse  First  Boston  Corporation,  Smith
Barney  Inc.,  Morgan  Stanley & Co.  Incorporated  and  NationsBanc  Montgomery
Securities  LLC  (collectively,  the "Initial Stock  Purchasers")  pursuant to a
stock purchase agreement dated March 12, 1998 ("Stock Purchase Agreement").  The
sale price per Preferred Share was $50.00,  with each of the Initial  Purchasers
receiving a discount  equal to 3.38% (or $1.6875) of the purchase  price of each
Preferred  Share it  purchased.  The Initial  Stock  Purchasers  resold all or a
portion of the Preferred  Shares to Qualified  Institutional  Buyers ("QIBs") in
accordance  with Rule 144A  promulgated  under the Securities Act of 1933 ("Rule
144A").

         Each  Preferred  Share  has a  liquidation  preference  of  $50.00  and
entitles  the holder  thereof to receive  from  WinStar  dividends at a rate per
annum of $3.50 per share.  Dividends are payable quarterly on March 15, June 15,
September 15 and December 15 of each year to the record holders of the Preferred
Shares as of the close of business on the business day next  preceding  the date
of such  dividend  payment.  WinStar  may pay such  dividends  in either cash or
through the issuance of shares of its Common Stock (the "Dividend  Shares"),  at
its election.

         Each Preferred  Share is  convertible  into shares of Common Stock (the
"Conversion  Shares") at a conversion rate of 1.0079  Conversion Shares for each
share of Preferred Stock  converted,  equivalent to a conversion price of $49.61
per Conversion Share.

         Registration Obligations

         WinStar and the Initial Stock  Purchasers  entered into a  registration
rights agreement,  dated March 12, 1998 ("Stock Registration Rights Agreement"),
pursuant to which WinStar is obligated to file a  registration  statement  under
the  Securities Act of 1933, as amended (the "Act"),  registering  the resale of
the Preferred  Shares,  Conversion Shares and Dividend Shares by May 4, 1998 and
to have such  registration  statement  declared  effective by the Securities and
Exchange Commission ("SEC") on or prior to August 15, 1998. If such registration
statement is not declared  effective by the SEC by August 15, 1998, the dividend
rate of the  Preferred  Shares shall  increase to 9% per annum until the default
under the Stock Registration Rights Agreement is cured.

         Redemption

         The Preferred  Shares are not  redeemable by WinStar prior to March 20,
2001.  Thereafter,  each Preferred  Share will be  redeemable,  at the Company's
option,  in whole or in part,  at any time or from  time to time,  upon not less
than 30 nor more than 60 days' prior notice mailed by  first-class  mail to each
holder's registered  address, at the redemption prices set forth below,  payable
in cash,  plus  accumulated and unpaid  dividends,  if any (including a prorated
dividend for any partial dividend period).

                                        2

<PAGE>



         If redeemed during the period  commencing  March 20, 2001 through March
14, 2002, the redemption price shall be $51.75 per share.

         If redeemed  during the 12-month  period  commencing on March 15 of the
years set forth below, the per share redemption prices shall be:


                                                                Redemption
Period                                                             Price
- ------                                                          ----------
2002............................................                  $51.17
2003............................................                   50.58
2004 and thereafter.............................                   50.00

         In the case of a  redemption  date  falling  after a  dividend  payment
record date and prior to the related  payment date, the holders of the Preferred
Shares at the close of  business on such record date will be entitled to receive
the dividend payable on such shares on the corresponding  dividend payment date,
notwithstanding  the redemption of such shares  following such dividend  payment
record date.  Except as provided for in the  preceding  sentence,  no payment or
allowance will be made for accrued  dividends on any Preferred Shares called for
redemption.

         WinStar's  ability  to redeem  the  Preferred  Shares at its  option is
limited by the terms of WinStar's outstanding  indebtedness.  WinStar may not be
able to redeem  the  Preferred  Shares at its  option  unless it  simultaneously
redeems or repays such indebtedness.

         On March 15, 2010,  WinStar will be required to redeem in cash (subject
to the legal availability of funds therefor) all outstanding Preferred Shares at
a price in cash equal to $50.00 per share, plus accumulated and unpaid dividends
(including  an amount  in cash  equal to a  prorated  dividend  for any  partial
dividend  period),  if any,  to the  date of  redemption.  WinStar  will  not be
required to make sinking fund payments with respect to the Preferred Shares. The
Certificate of  Designations,  Rights and Preferences  relating to the Preferred
Shares  provides that WinStar will take all actions  required or permitted under
Delaware law to permit such redemption.

Debt Placement

         On March 20, 1998,  WinStar sold (the "Debt Placement") $200 million of
its 10%  Senior  Subordinated  Notes due 2008 (the  "Cash-Pay  Notes")  and $250
million of its 11% Senior  Subordinated  Deferred  Interest  Notes due 2008 (the
"Deferred  Interest  Notes" and,  together  with the Cash-Pay  Notes,  the "1998
Notes").

         General

         The sale was made to Credit  Suisse First Boston  Corporation,  Salomon
Brothers Inc.,  Morgan Stanley & Co.  Incorporated  and  NationsBanc  Montgomery
Securities LLC (collectively  the "Initial Note Purchasers")  pursuant to a note
purchase agreement dated March 17, 1998 ("Note Purchase Agreement"). The Initial
Note  Purchasers  each  received  a  discount  equal to 2.875% of the  aggregate
purchase price of the 1998 Notes it purchased. The Initial Purchasers resold all
or a portion of the 1998 Notes to QIBs in accordance with Rule 144A.

         The 1998  Notes  rank pari passu  with  WinStar's  existing  15% Senior
Subordinated  Deferred Interest Notes issued in October 1997 and 14% Convertible
Senior  Subordinated  Notes issued in October  1995  and  are junior in right of
payment to all future and existing  senior  indebtedness  of WinStar,  including
WinStar's  14 1/2% Senior  Deferred  Interest  Notes  issued in March 1997,  14%
Senior  Discount  Notes  issued in October  1995 and  guarantees  of the 12 1/2%
Guaranteed  Senior  Secured Notes issued by certain  subsidiaries  of WinStar in
March and August 1997. All of the Company's above

                                        3

<PAGE>



described  outstanding  notes, other than the 1998 Notes, are referred to herein
collectively as the "Existing Notes."

         The Cash-Pay  Notes bear  interest at a rate of 10% per annum,  payable
semiannually  on March 15 and  September 15,  commencing  September 15, 1998, to
holders  of record at the close of  business  on March 1, and  September  1. The
Cash-Pay Notes mature on March 15, 2008 and are redeemable on or after March 15,
2003,  at the option of  WinStar,  in whole or part,  as  described  below under
"Redemption."

         Until  September 15, 2003,  interest on the Deferred  Notes will accrue
and  compound  semiannually,  but will not be payable in cash.  Interest  on the
accumulated  amount of the Deferred  Interest Notes as of March 15, 2003 will be
payable  semiannually  in cash  on  March  15 and  September  15 of  each  year,
commencing  September 15, 2003, to holders of record at the close of business on
March 1, and September 1. The Deferred  Interest  Notes mature on March 15, 2008
and are  redeemable  on or after March 15,  2003,  at the option of WinStar,  in
whole or part, as described below under "Redemption."

         Each of the Cash-Pay  Notes and the Deferred  Interest Notes was issued
pursuant  to,  and  each  is  governed  by  the  terms  of,  an  indenture  (the
"Indentures")  among  WinStar  (as issuer of the 1998  Notes) and United  States
Trust Company of New York, as trustee. Under the Indentures,  WinStar is subject
to restrictions  substantially  similar to the restrictions on WinStar contained
in the indentures  between WinStar and the trustees with respect to the Existing
Notes. Such restrictions include, among others, restrictions with respect to the
incurrence of additional  indebtedness,  the creation of liens or  encumbrances,
the  making  of  certain  restricted  payments,  including  investments  outside
WinStar's  telecommunications  operations, and sales of assets, in each case, of
WinStar and certain of its subsidiaries, and changes of control of WinStar.

         Pursuant  to the  Indentures,  in the event of a change of  control  of
WinStar,  WinStar  must offer to purchase  from the  holders  thereof all of its
respective  Notes then  outstanding at a purchase price equal to 101% of, in the
case of the  Deferred  Interest  Notes,  the  accumulated  amount on the date of
purchase, and, in the case of the Cash-Pay Notes, the principal amount, plus, in
each case, accrued and unpaid interest.

         Registration Obligations

         WinStar and the Initial Note  Purchasers  entered  into a  registration
rights  agreement dated March 17, 1998 ("Note  Registration  Rights  Agreement")
which requires  WinStar to effect a registered  exchange offer pursuant to which
the respective 1998 Notes may be exchanged by the holders thereof for notes (the
"Exchange  Notes") having terms  substantially  identical to such exchanged 1998
Notes (except with respect to transfer restrictions).  WinStar has agreed to use
its best efforts to have the  registration  statements in  connection  with such
exchange  offers filed by May 4, 1998, and declared  effective by the Securities
and  Exchange  Commission  ("SEC") by August 17,  1998 and to keep the  exchange
offers open for not less than 30 days (or longer if required by applicable  law)
after the date that notice  thereof is mailed to the  holders of the  respective
1998 Notes. WinStar has further agreed, under certain circumstances,  including,
among others, its failure to consummate an exchange offer by September 16, 1998,
to  file a shelf  registration  statement  (a  "Shelf  Registration  Statement")
covering resales of the 1998 Notes or Exchange Notes, as the case may be, and to
keep the Shelf  Registration  Statement  effective  until the time when the 1998
Notes or  Exchange  Notes  covered  thereby  can be sold  without  an  effective
registration  statement.  In the event of a default by  WinStar,  interest  will
accrue  on the  applicable  issue of 1998  Notes  and  Exchange  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 1998 Notes or Exchange  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
applicable 1998 Notes or Exchange Notes.

                                        4

<PAGE>



         Redemption

         The  Cash-Pay  Notes  are not  redeemable  prior  to  March  15,  2003.
Thereafter, the Cash-Pay Notes will be redeemable, at WinStar's option, in whole
or in  part,  at the  following  redemption  prices  (plus  accrued  and  unpaid
interest), if any:


                                                       Redemption
          Year                                           Price
          ----                                         ----------

          2003                                          105.000%
          2004                                          103.333%
          2005                                          101.667%
          2006 and thereafter                           100.000%

         The Deferred Interest Notes are not redeemable prior to March 15, 2003.
Thereafter, the Deferred Interest Notes will be redeemable, at WinStar's option,
in  whole  or in  part,  at the  following  redemption  prices  (expressed  as a
percentage of the accumulated amount), plus accrued and unpaid interest, if any,
on such accumulated amount:


                                                       Redemption
          Year                                           Price
          ----                                         ----------

          2003                                          105.500%
          2004                                          103.667%
          2005                                          101.833%
          2006 and thereafter                           100.000%

Press Releases

         WinStar  issued a press  release on March 11, 1998  announcing  that it
intended to raise  certain  proceeds in the Preferred  Stock  Placement and Debt
Placement. A copy of such press release was filed as an exhibit to the Company's
Current Report on Form 8-K, filed March 12, 1998.

         WinStar issued a press release on March 12, 1998 announcing that it had
signed  the  Stock  Purchase  Agreement  with  respect  to the  Preferred  Stock
Placement. A copy of such press release is filed herewith as an exhibit.

         WinStar  issued  a press  release  on March  20,  1998  announcing  the
consummation of both the Preferred Stock Placement and Debt Placement. A copy of
such press release is filed herewith as an exhibit.




                                        5

<PAGE>



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

Preferred Stock Placement

Exhibit Number      Description
- ---------------     -----------

         4.1        Stock Purchase Agreement

         4.2        Certificate of Designations, Rights and Preferences of the 
                    Series D 7% Senior Cumulative Convertible Preferred Stock

         4.3        Form of Certificate for Series D Preferred Stock

         4.4        Stock Registration Rights Agreement

        99.1        Press Release regarding signing of the Security Purchase 
                    Agreement for the Preferred Stock Placement


Debt Placement

Exhibit Number      Description
- --------------      -----------

         4.5        Note Purchase Agreement

         4.6        Cash-Pay Notes Indenture, including form of Cash-Pay Note

         4.7       Deferred Interest Notes Indenture, including form of 
                    Deferred Interest Note

         4.8        Debt Registration Rights Agreement

        99.2        Press Release regarding the consummation of both the Debt 
                    Placement and the Preferred Stock Placement



                                        6

<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:  March 30, 1998                WINSTAR COMMUNICATIONS, INC.
                                -------------------------------------------
                                              (Registrant)

                                   /s/ Frederic E. Rubin
                                -------------------------------------------
                                Frederic E. Rubin, Vice President/Treasurer



                                        7

<PAGE>


                                  EXHIBIT INDEX

Preferred Stock Placement


Exhibit Number      Description
- ---------------     -----------

         4.1       Stock Purchase Agreement

         4.2        Certificate of Designations, Rights and Preferences of the 
                    Series D 7% Senior Cumulative Convertible Preferred Stock

         4.3        Form of Certificate for Series D Preferred Stock

         4.4        Stock Registration Rights Agreement

        99.1        Press Release regarding signing of the Security Purchase 
                    Agreement for the Preferred Stock Placement


Debt Placement

Exhibit Number      Description
- --------------      -----------

         4.5        Note Purchase Agreement

         4.6        Cash-Pay Notes Indenture, including form of Cash-Pay Note

         4.7        Deferred Interest Notes Indenture, including form of 
                    Deferred Interest Note

         4.8        Debt Registration Rights Agreement

        99.2        Press Release regarding the consummation of both the Debt 
                    Placement and the Preferred Stock Placement

                                        8

<PAGE>






                                4,000,000 Shares

                          WINSTAR COMMUNICATIONS, INC.

             Series D 7% Senior Cumulative Preferred Stock Due 2010

                     (Liquidation Preference $50 Per Share)

                               PURCHASE AGREEMENT

                                                          March 12 , 1998

Credit Suisse First Boston Corporation
Smith Barney Inc.
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC
c/o Credit Suisse First Boston Corporation
Eleven Madison Avenue
New York, New York 10010


Dear Sirs:

     1. Introductory. WinStar Communications,  Inc., a Delaware corporation (the
"Issuer") and WinStar  Multichannel  Corp., a Delaware  corporation and a wholly
owned  subsidiary  of the Issuer  ("WMC",  and  together  with the  Issuer,  the
"Sellers"), propose, subject to the terms and conditions stated herein, to issue
and sell to the  several  initial  purchasers  named in  Schedule A hereto  (the
"Purchasers") 3,700,000 and 300,000 shares, respectively, of the Issuer's Series
D 7%  Senior  Cumulative  Convertible  Preferred  Stock  Due  2010  (liquidation
preference $50 per share) (the "Convertible  Preferred Stock").  The Convertible
Preferred Stock will be convertible into shares of Common Stock, par value $0.01
per share,  of the Issuer (the "Common  Stock") at $49.61 per share,  subject to
adjustment in accordance with the  Certificate of  Designations  relating to the
Convertible  Preferred Stock (the "Certificate of Designations").  The shares of
Convertible  Preferred Stock are herein referred to as the "Offered  Securities"
and the shares of Common Stock issuable upon conversion  thereof are referred to
herein as the "Underlying  Shares".  The United States Securities Act of 1933 is
herein referred to as the "Securities Act."

         The Sellers hereby agree with the several Purchasers as follows:

     2. Representations and Warranties of the Sellers. The Sellers represent and
warrant to, and agree with, the several Purchasers that:

     (a) A preliminary  offering  circular and an offering  circular relating to
the Offered Securities to be offered by the Purchasers have been prepared by the
Issuer.  Such preliminary  offering circular and offering circular,  as both are
supplemented as of the date of this Agreement,  together with any other document
approved by the Issuer for use in connection with the contemplated resale of the
Offered  Securities are  hereinafter  collectively  referred to as the "Offering
Document". On the date of this Agreement, the Offering Document does 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, it being
understood  and agreed that the only such  information is that described as such
in Section 7(b).  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 Commission or sent to stockholders  pursuant to the
United States  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.


<PAGE>


                                                                               2

     (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
Offering Document;  and 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 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").

     (c)  Each   subsidiary  of  the  Issuer,   including  WMC,  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 Offering  Document;
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 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 of each
subsidiary owned by the Issuer, directly or through subsidiaries,  is owned free
from  liens,  encumbrances  and  defects,  other  than  shares of the  direct or
indirect subsidiaries of WinStar New Media, Inc.

     (d) The Offered Securities have been duly and validly authorized;  and when
the Offered  Securities have been delivered by the Sellers and paid for pursuant
to  this  Agreement  on the  Closing  Date  (as  defined  below),  such  Offered
Securities  will be  validly  issued,  fully  paid  and  nonassessable  and will
conform,  in all material respects,  to the description thereof contained in the
Offering  Document;  the Underlying Shares have been duly and validly authorized
and reserved for issuance upon conversion of the Offered Securities; neither the
issuance of the Offered  Securities  nor the issuance of the  Underlying  Shares
upon conversion thereof is subject to preemptive or other similar rights.

     (e) When the Offered Securities are delivered and paid for pursuant to this
Agreement on the Closing Date, such Offered  Securities will be convertible into
the Underlying Shares in accordance with the terms of the Offered Securities and
the Certificate of Designations;  the Underlying Shares initially  issuable upon
conversion of the Offered  Securities have been duly authorized and reserved for
issuance upon such  conversion  and, when issued upon such  conversion,  will be
validly issued,  fully paid and  nonassessable;  and the  outstanding  shares of
Common Stock have been duly  authorized and validly  issued,  are fully paid and
nonassessable  and conform in all material  respects to the description  thereof
contained in the Offering Document.

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

     (g) No consent, approval,  authorization,  or order of, or filing with, any
governmental agency or body or any court is required for the consummation of the
transactions  contemplated by this Agreement in connection with the issuance and
sale of the Offered  Securities by the Sellers or the issuance of the Underlying
Shares 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  between the Issuer and the Purchasers dated the
date  hereof  (the   "Registration   Rights  Agreement")  and  the  transactions
contemplated  thereunder,  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.

     (h) The  execution,  delivery and  performance of 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
either  of  the  Sellers  or  any  subsidiary  of the  Issuer  or  any of  their
properties,  (ii) any  agreement or instrument to which either of the Sellers or
any such  subsidiary  is a party or by which  either of the  Sellers or any such
subsidiary is bound or to which any of the properties of the Sellers or any such
subsidiary is subject, or (iii) the charters or by-laws of either of the Sellers
or any  such  subsidiary,  except,  in the  case of  clause  (i) or  (ii),  such



<PAGE>


                                                                               3

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 and WMC as  contemplated by this Agreement and to authorize and issue the
Underlying Shares upon conversion of the Offered Securities.

     (i) This Agreement has been duly authorized, executed and delivered by each
of the Sellers;  the  Registration  Rights  Agreement has been duly  authorized,
executed  and  delivered  by the Issuer and will  constitute a valid and legally
binding  obligation of the Issuer,  enforceable 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  rights to
indemnity and  contribution  may be limited by federal and state securities laws
and public policy considerations.

     (j) Except as disclosed  in the  Offering  Document and except for liens on
the shares of the direct or indirect  subsidiaries  of WinStar New Media,  Inc.,
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  Offering  Document,   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.

     (k)  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.

     (l) 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.

     (m)  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.

     (n) Except as disclosed in the  Offering  Document,  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  investigation which might lead to such a
claim.

     (o) Except as  disclosed  in the  Offering  Document,  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 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.



<PAGE>


                                                                               4

     (p) The  financial  statements  included in the Offering  Document  present
fairly the financial  position of the Issuer and its  consolidated  subsidiaries
and,  subject to the last  paragraph  of the report of Grant  Thornton  LLP,  of
MIDCOM Communications,  Inc. ("Midcom") 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,  subject to the last  paragraph  of the
report of Grant  Thornton LLP, 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 in the Offering  Document 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.

     (q) Except as  disclosed in the  Offering  Document,  since the date of the
latest audited financial statements included in the Offering Document, 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 the Issuer and its subsidiaries
taken as a whole (it being  understood that the acquisition  from Telesoft Corp.
of its Tier I Internet service provider, the acquisition of substantially all of
the  assets  of  Midcom,  a  change  in the  price  of the  Common  Stock 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 Offering  Document,
there has been no dividend or distribution of any kind declared, paid or made by
the Issuer on any class of its capital stock.

     (r) 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 as described in the Offering Document,  will
not be an "investment company" as defined in the Investment Company Act.

     (s) 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. automated inter-dealer quotation system.

     (t)  Assuming  the  accuracy  of  the  representations  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.

     (u) Except  for sales to or through  the  Purchasers  or their  affiliates,
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.

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

     (w) 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").

     (x) 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 38 GHz portions of the radio spectrum and licenses
granted  to  the  Issuer  or  its  subsidiaries  or  acquired  from  Local  Area


<PAGE>


                                                                               5

Telecommunications,  Inc.  that  are  not in the 38  GHz  portion  of the  radio
spectrum) by the FCC (the "Licenses").  All the Licenses are currently valid and
in full force and effect. Neither the Issuer nor any of its subsidiaries has 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,  except that, on March 9, 1998,
several parties filed petitions for reconsideration  (the "Petitions") of the 38
GHz Order (as defined in the Offering  Document)  alleging,  among other things,
that the February 10, 1998 License  grants to the Issuer of additional  channels
in each of Atlanta, Buffalo,  Cincinnati,  Dallas, Houston, Miami, New York, St.
Louis, Seattle, Spokane and Tampa were in violation of the rules of the FCC.

     (y) 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.

     (z) 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.

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

     3. Purchase,  Sale and Delivery of Offered Securities.  On the basis of the
representations,  warranties and agreements herein contained, but subject to the
terms and conditions  herein set forth, the Sellers agree to sell to the several
Purchasers, and each of the Purchasers hereby agrees, severally and not jointly,
to purchase  from the  Sellers,  the number of shares of  Convertible  Preferred
Stock set forth  opposite  the names of the  several  Purchasers  in  Schedule A
hereto, at a purchase price of $48.3125 per share (which represents the discount
to the Purchasers of $1.6875 per share from the public offering price of $50.00)
plus  accrued  dividends  (if any) from March 17, 1998 to the  Closing  Date (as
hereinafter defined).

     The Issuers will 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 Continental Stock Transfer & Trust
Company  ("Continental")  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 the limited circumstances described in the Offering Document.  Payment
for the Offered Securities shall be made by the Purchasers in Federal (same day)
funds by wire transfer to accounts previously designated to CSFBC by the Sellers
at one or more  financial  institutions  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 March 17, 1998, or at such other
time not later than seven full business days thereafter as CSFBC and the Sellers
determine,  such time being herein  referred to as the "Closing  Date",  against
delivery  to  Continental  as  custodian  for  DTC  of  the  Global   Securities
representing all of the Offered  Securities.  The Global Securities will be made
available  for  checking at the  offices of Cravath,  Swaine & Moore at least 24
hours prior to the Closing Date.

     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  neither  the  Offered
Securities nor the Underlying  Shares have 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 Regula tion 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 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


<PAGE>


                                                                               6

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  conces sion, fee or other  remuneration  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,  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 distribution of the Offered Securities except for any such arrangements with
the other  Purchasers or affiliates of the other  Purchasers and except 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  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, holding, 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 it 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  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  the  Purchasers'  consent  to,


<PAGE>


                                                                               7

nor  CSFBC's  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 any  preliminary  offering
circular,  the Offering  Document and all  amendments  and  supplements  to such
documents,  in each case as soon as available  and in such  quantities  as CSFBC
reasonably  requests,  and the Issuer will  furnish to CSFBC on the Closing Date
five 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, the 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 reasonably  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 jurisdiction.

     (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.

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

     (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, and 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 its
obligations under this Agreement,  including (i) 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 Offering Document and amendments and supplements  thereto,  and
any other  document  relating to the issuance,  offer,  sale and delivery of the
Offered  Securities;  (ii) 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;  (iii) the cost of any
advertising  approved by the Issuer in connection  with the issue of the Offered
Securities;  (iv) 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;  (v) any fees charged
by investment rating agencies for the rating of the Offered Securities; and (vi)
all expenses  incurred in distributing  preliminary  offering  circulars and the
Offering  Document  (including any amendments  and  supplements  thereto) to the
Purchasers.  The Issuer will also pay or reimburse the Purchasers (to the extent



<PAGE>


                                                                               8

incurred by them) for all travel expenses of the Issuer's officers and employees
and any other  expenses of the Issuer in  connection  with  attending or hosting
meetings  with  prospective  purchasers  of  the  Offered  Securities  from  the
Purchasers.

     (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,  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 Common  Stock or attempt to induce  any  person to  purchase  any
Offered  Securities  or Common Stock;  and neither it nor any of its  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 or Common
Stock.

     (j)  For a  period  of 90 days  after  the  date  hereof  (the  "Applicable
Period"),  the  Issuer  will not sell,  contract  to sell,  pledge or  otherwise
dispose of, directly or indirectly,  or (except pursuant to agreements  executed
on or prior to the date hereof)  arrange to have declared  effective  during the
Applicable Period a registration statement under the Securities Act covering the
sale by the Issuer of, (a) any  preferred  stock or any other  securities of the
Issuer which are substantially  similar to the Convertible  Preferred Stock, (b)
any  shares of Common  Stock of the  Issuer  or any other  capital  stock of the
Issuer,  or (c) any other securities which are convertible  into, or exercisable
or exchangeable for, preferred stock or such substantially similar securities of
the Issuer,  Common Stock or other  capital  stock of the Issuer  (collectively,
"Derivative  Securities"),  without the prior  written  consent of CSFBC,  which
shall not be unreasonably withheld,  except (i) the Convertible Preferred Stock,
(ii) Common Stock or preferred stock issued or delivered as payment of dividends
on, or upon conversion,  of any preferred stock of the Issuer,  (iii) securities
issued  or  delivered  upon  conversion,  exchange  or  exercise  of  any  other
securities of the Issuer outstanding on the date of the Offering Document,  (iv)
capital stock,  options and other equity-based awards issued pursuant to benefit
or incentive  plans  maintained for the officers,  directors or employees of, or
persons providing  services to, the Issuer or its  subsidiaries,  or pursuant to
the Issuer's dividend reinvestment, 401(k), stock purchase or similar plans, (v)
securities   issued  in  connection   with,  or  in  furtherance   of,  mergers,
acquisitions  of assets or equity of others  (including  spectrum  licenses  and
interests in entities  with  spectrum  licenses) or similar  transactions,  (vi)
securities  representing a minority interest in the Issuer issued to a strategic
investor who agrees not to resell such securities during the Applicable  Period,
or (vii) Common  Stock,  preferred  stock,  other  capital  stock or  Derivative
Securities in a transaction not registered  under the Securities Act of 1933, if
the  Company  does not arrange to have a  registration  statement  covering  the
resale of any such securities  declared  effective during the Applicable Period.
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.

     (k) The Issuer will cause each  certificate  for the Offered  Securities or
the  Underlying  Shares to bear the legend  described in the  Offering  Document
until such legend shall no longer be necessary or advisable  because the Offered
Securities and the Underlying  Shares 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 the accuracy of the representations and warranties on the part of the
Issuer  herein,  to the accuracy of the  certificates  of officers of the Issuer
delivered pursuant to the provisions hereof, to the performance by the Issuer of
its obligations hereunder and to the following additional conditions precedent:

     (a) The  Purchasers  shall have  received a letter,  dated the date of this
Agreement,  of Grant  Thornton  LLP, in agreed  form,  confirming  that they are
independent  public accountants within the meaning of the Securities Act and the
applicable published rules and regulations  thereunder ("Rules and Regulations")
and stating to the effect that:

         (i) in their  opinion  the  financial  statements  examined by them and
included in the Offering  Document  comply as to form in all  material  respects
with  the  applicable  accounting  requirements  of the  Securities  Act and the
related published Rules and Regulations;

         (ii)  on the  basis  of a  reading  of  the  latest  available  interim
financial statements of the Issuer, inquiries of certain officials of the Issuer
who have responsibility for financial and accounting matters and other specified
procedures, nothing came to their attention that caused them to believe that:


<PAGE>


                                                                              9

                  (A) at March 6,  1998,  there was any  change  in the  capital
         stock or paid-in  capital,  increase in long-term debt or any decreases
         in  consolidated  net  current  assets or  stockholders'  equity of the
         Issuer and its subsidiaries,  on a consolidated  basis as compared with
         amounts  shown on the December 31, 1997  audited  consolidated  balance
         sheet included in the Offering Document; or

                  (B) for the  period  from  January  1, 1998 to March 6,  1998,
         there were any decreases,  as compared with the corresponding period in
         the preceding year, in consolidated  operating revenues or in the total
         or per-share amounts of net loss;

except  in all  cases  set  forth in  clauses  (A) and (B)  above  for  changes,
increases or decreases  which the Offering  Document  discloses have occurred or
may occur or which are described in such letter; and

         (iii) they have  compared  specified  dollar  amounts  (or  percentages
derived from such dollar amounts) and other financial  information  contained in
the  Offering  Document  (in each case to the extent that such  dollar  amounts,
percentages  and  other  financial  information  are  derived  from the  general
accounting  records  of WinStar  and its  subsidiaries  subject to the  internal
controls of the Issuer's  accounting  system or are derived  directly  from such
records by analysis or computation) with the results obtained from inquiries,  a
reading of such general  accounting  records and other  procedures  specified in
such letter and have found such dollar amounts,  percentages and other financial
information to be in agreement with such results,  except as otherwise specified
in such letter.

         (b) Subsequent to the execution and delivery of this  Agreement,  there
shall  not  have  occurred  (i) a change  in U.S.  or  international  financial,
political or economic conditions or currency exchange rates or exchange controls
as would,  in the  judgment  of CSFBC,  be likely to  prejudice  materially  the
success of the proposed issue,  sale or distribution of the Offered  Securities,
whether in the primary market or in respect of dealings in the secondary market,
or (ii) (A) any change,  or any  development  or event  involving a  prospective
change, in the condition (financial or other),  business,  properties or results
of operations of the Issuer or its subsidiaries which, in the judgment of CSFBC,
is material and adverse and makes it  impractical or inadvisable to proceed with
completion of the offering or the sale of and payment for the Offered Securities
(it  being  understood  that a change in the  price of the  Common  Stock or the
continuation of operating losses consistent with the Issuer's historical results
shall be deemed not to be, in and of itself, a material adverse change); (B) any
downgrading  in  the  rating  of  any  debt  securities  of  the  Issuer  by any
"nationally recognized statistical rating organization" (as defined for purposes
of Rule 436(g) under the Securities  Act), or any public  announcement  that any
such  organization  has  under  surveillance  or review  its  rating of any debt
securities of the Issuer (other than an announcement with positive  implications
of a possible upgrading,  and no implication of a possible downgrading,  of such
rating);  (C) any suspension or limitation of trading in securities generally on
the New York Stock  Exchange,  or any  setting of minimum  prices for trading on
such  exchange,  or any suspension of trading of any securities of the Issuer on
any  exchange or in the  over-the-counter  market;  (D) any  banking  moratorium
declared  by U.S.  Federal  or New  York  authorities;  or (E) any  outbreak  or
escalation  of major  hostilities  in which the United  States is involved,  any
declaration   of  war  by  Congress  or  any  other   substantial   national  or
international  calamity or emergency if, in the judgment of CSFBC, the effect of
any such  outbreak,  escalation,  declaration,  calamity or  emergency  makes it
impractical or inadvisable to proceed with completion of the offering or sale of
and payment for the Offered Securities.

         (c) The  Purchasers  shall have received an opinion,  dated the Closing
Date, of Graubard Mollen & Miller, counsel for the Sellers, substantially to the
effect set forth in (i)-(x) below,  and of Willkie Farr & Gallagher,  regulatory
counsel for the Issuer,  substantially  to the effect set forth in  (xi)-(xviii)
below:

         (i) Each of the  Issuer  and WMC 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 Offering Document;

         (ii)  The  Registration  Rights  Agreement  has been  duly  authorized,
executed and delivered;  the Registration  Rights Agreement  constitutes a valid
and legally  binding  obligation of the Issuer  enforceable  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
rights to  indemnity  and  contribution  may be  limited  by  federal  and state
securities laws and public policy considerations;



<PAGE>


                                                                             10

         (iii) The  Offered  Securities  have been duly  authorized  and validly
issued,  and upon  payment  therefor  will be fully paid and  nonassessable  and
conform in all material  respects to the  description  thereof  contained in the
Offering  Document;  to their knowledge,  the stockholders of the Issuer have no
preemptive or other  similar  rights with respect to the issuance of the Offered
Securities;  the Offered  Securities  are  convertible  into Common Stock of the
Issuer in accordance with the Certificate of Designations; the Underlying Shares
have been duly  authorized and reserved for issuance upon such  conversion  and,
when  issued  upon such  conversion,  will be  validly  issued,  fully  paid and
nonassessable;  the  outstanding  shares of Common Stock conform in all material
respects to the description  thereof contained in the Offering Document;  and to
their knowledge the  stockholders  of the Issuer have no preemptive  rights with
respect to the issuance of the Underlying Shares;

         (iv) The Issuer is not and,  after  giving  effect to the  offering and
sale of the Offered  Securities and the  application of the proceeds  thereof as
described  in the  Offering  Document,  will not be an  "investment  company" as
defined in the Investment Company Act;

         (v) No consent,  approval,  authorization  or order of, or filing with,
any governmental agency or body or any court is required for the consummation of
the transactions  contemplated by this Agreement in connection with the issuance
or sale of the Offered  Securities  by the Issuer and WMC,  the  issuance by the
Issuer of the Underlying Shares upon conversion  thereof and the consummation of
the transactions under the Registration  Rights Agreement,  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 and the
transactions  contemplated  thereunder and such as may be required by securities
or blue sky laws of the  various  states of the  United  States  and of  foreign
jurisdictions in connection with the offer and sale of the Offered Securities;

         (vi) The execution, delivery and performance of 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,  (A) any statute,  rule or regulation or any order known to such
counsel of any governmental agency or body or any court having jurisdiction over
either  of  the  Sellers  or  any  subsidiary  of the  Issuer  or  any of  their
properties, (B) any agreement or instrument listed as an exhibit to the Issuer's
Annual Report on Form 10-K most recently  filed with the Commission or listed as
an exhibit to or filed with any subsequent reports filed by the Issuer under the
Exchange  Act  through  December  31,  1997,  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 (C) the charter or by-laws of the Issuer or any such subsidiary,  except,  in
the  case  of  clause  (A)  or  (B),  breaches,   violations  or  defaults  that
individually or in the aggregate would not have a Material  Adverse Effect;  and
the Issuer has full power and corporate  authority to authorize,  issue and sell
the Offered  Securities as  contemplated  by this Agreement and to authorize and
issue the Underlying Shares upon conversion;

         (vii)  Such  counsel  have no  reason  to  believe  that  the  Offering
Document,  or any amendment or supplement  thereto, as of the date hereof and as
of the  Closing  Date,  contained  any untrue  statement  of a material  fact or
omitted 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  misleading;  it being  understood  that such counsel need express no
opinion as to the financial  statements or other financial data contained in the
Offering Document;

         (viii) The descriptions in the Offering Document of statutes, legal and
governmental  proceedings  and contracts and other documents are accurate in all
material  respects and fairly present the information  purported to be described
therein;

         (ix)  This  Agreement  has been duly authorized, executed and delivered
               by the Sellers;

         (x) Based upon the accuracy of the  representations  and  warranties of
the Issuer set forth in Section 2(u) of this  Agreement and of the Purchasers in
Section 4 hereof, it is not necessary in connection with (i) the offer, sale and
delivery  of the  Offered  Securities  by the Issuer to the  several  Purchasers
pursuant to this Agreement or (ii) the resales of the Offered  Securities by the
several Purchasers in the manner contemplated by this Agreement, to register the
Offered  Securities or the Underlying Shares under the Securities Act other than
in  connection  with the  Issuer's  obligations  under the  Registration  Rights
Agreement.



<PAGE>


                                                                             11

         (xi) No prior or subsequent consent,  approval,  authorization or order
of the FCC is required to be obtained,  and no prior or subsequent  notice to or
filing with the FCC is required to be made, in  connection  with the offering of
Offered Securities or the issuance of the Underlying Shares.

         (xii) To the  best of such  counsel's  knowledge,  the  Issuer  and its
subsidiaries are in compliance in all material  respects with all material terms
and conditions of each License.

         (xiii) To the best of such counsel's knowledge, all of the Licenses are
currently  valid and in full force and  effect,  and there is no  investigation,
notice of apparent liability,  violation, forfeiture or other order of 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;  provided,  however,  on  February  10,  1998,  the  FCC  granted
additional  channels  for  38 GHz  licenses  in the  following  areas:  Atlanta,
Buffalo,  Cincinnati,  Dallas,  Houston,  Miami,  New York, St. Louis,  Seattle,
Spokane  and Tampa.  On March 9,  1998,  several  parties  filed  petitions  for
reconsideration  of the 38 GHz Order,  alleging,  among other  things,  that the
February  10,  1998,  license  grants to the  Issuer  were in  violation  of the
Commission's  processing rules,  which Petitions for  Reconsideration  were made
available to the public on March 10, 1998. At least one of those parties  stated
that it would be filing a separate pleading on this issue.

         (xiv) Such  counsel is not aware of any event or  instance in which the
Issuer was not in compliance with all applicable and material rules, regulations
and policies of the FCC pertaining to the Licenses.

         (xv) Such counsel is not aware of the occurrence of any event which (i)
results  in,  or  after  notice  or  lapse  of  time or both  would  result  in,
revocation,   suspension,   adverse   modification,    nonrenewal,   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.

         (xvi) To the  best of such  counsel's  knowledge,  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 pertaining to the Licenses.

         (xvii) Such  counsel is not aware of any reason to believe  that any of
the Licenses will not be renewed in the ordinary course.

         (xviii) The FCC has the  authority,  under  certain  circumstances,  to
modify radio  licenses that it has issued.  On November 3, 1997, the FCC adopted
rules to auction unlicensed  portions of the 38.6 - 40.0 GHz band for commercial
use. On March 24, 1997,  the FCC  proposed  rules to segment the 38.6 - 40.0 GHz
band for  terrestrial  wireless  services.  In either  event,  the FCC may adopt
changes to the  existing and proposed  regulations  governing 38 GHz  licensees,
which could have an impact on the scope of the  Licenses and the  operations  of
the Issuer and its  subsidiaries.  As of the date of such letter,  and except as
otherwise  discussed in such  letter,  such counsel is not aware of any official
FCC action that may permit or is likely to lead to the  revocation,  nonrenewal,
modification, impairment, restriction, or suspension of any License or any right
or authority thereunder in whole or in part.

         (d) The  Purchasers  shall have received from Cravath,  Swaine & Moore,
counsel for 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 Offering Document, 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 Purchaser 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.

         (e) The Purchasers shall have received a certificate, dated the Closing
Date,  of the Chief  Executive  Officer or any Vice  President  and 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
representations  and  warranties  of such Issuer in this  Agreement are true and
correct,  that the Issuer has complied  with all  agreements  and  satisfied all
conditions on its part to be performed or satisfied hereunder at or prior to the
Closing Date,  and that,  subsequent  to the dates of the most recent  financial
statements in the Offering  Document there has been no material  adverse change,



<PAGE>


                                                                             12

nor any development or event involving a prospective material adverse change, in
the  condition  (financial  or  other),  business,   properties  or  results  of
operations  of the Issuer and its  subsidiaries  taken as a whole  except as set
forth in or  contemplated  by the  Offering  Document  or as  described  in such
certificate.

         (f) The  Purchasers  shall have  received a letter,  dated the  Closing
Date, of Grant  Thornton LLP which meets the  requirements  of subsection (a) of
this Section, except that the specified date referred to in such subsection will
be a date not more than five days prior to the Closing  Date for the purposes of
this subsection.

         (g) The Issuer shall have filed with the Secretary of State of Delaware
the Certificate of Designations for the Convertible Preferred Stock.

         The Issuer will furnish the Purchasers  with such  conformed  copies of
such opinions,  certificates,  letters and documents as the Purchaser 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 any related preliminary  offering circular,  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  reasonably  incurred  by each
Purchaser in connection with  investigating  or defending any such loss,  claim,
damage,  liability or action as such expenses are incurred;  provided,  however,
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 such Purchaser through CSFBC specifically
for use therein,  it being  understood and agreed that the only such information
consists of the information  described as such in subsection (b) below; provided
further,  however,  that with respect to any untrue  statement or alleged untrue
statement  in or  omission or alleged  omission  from any  preliminary  offering
circular,  the indemnity  agreement  contained in this  subsection (a) shall not
inure to the benefit of any Purchaser that sold the Offered Securities concerned
to the person asserting any such losses, claims, damages or liabilities,  to the
extent that such sale was an initial resale by such Purchaser and any such loss,
claim,  damage or liability of such  Purchaser  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  Offered  Securities  to such  person,  a copy of the  Offering
Document if the Issuer had previously furnished copies thereof to such Purchaser
and such  Offering  Document  corrected  such  untrue  statement  or omission or
alleged untrue statement or omission.

         (b) Each Purchaser  will  severally and not jointly  indemnify and hold
harmless the Issuer and WMC 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 any related  preliminary
offering circular, 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,  it being understood
and agreed that the only such information furnished by any Purchaser consists of
the following  information in the Offering  Document  furnished on behalf of the
Purchasers:  the last  paragraph at the bottom of the cover page  concerning the
terms of the offering by the Purchaser,  the legends concerning  over-allotments
and  stabilizing  on the inside front cover page and, under the caption "Plan of
Distribution," (i) the third


<PAGE>


                                                                            13

sentence of the second paragraph thereunder, (ii) the fifth paragraph thereunder
and (iii) the third sentence in the eighth paragraph thereunder.

         (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 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 (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 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 is unavailable
or  insufficient 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 indemnified party as a result of the losses,  claims, damages or
liabilities referred to in subsection (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 Sellers
bear to the total discounts and commissions  received by the Purchasers from the
Sellers  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  Issuers  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. Default of  Purchasers.  If any Purchaser or  Purchasers  default in
their  obligations to purchase  Offered  Securities  hereunder and the aggregate
number  of shares of  Offered  Securities  that  such  defaulting  Purchaser  or
Purchasers agreed but failed to purchase does not exceed 10% of the total number
of shares of Offered Securities, CSFBC may make arrangements satisfactory to the
Sellers for


<PAGE>


                                                                             14

the purchase of such Offered  Securities by other persons,  including any of the
Purchasers,  but if no such  arrangements  are  made by the  Closing  Date,  the
non-defaulting  Purchasers shall be obligated severally,  in proportion to their
respective commitments  hereunder,  to purchase the Offered Securities that such
defaulting  Purchasers  agreed  but  failed to  purchase.  If any  Purchaser  or
Purchasers so default and the aggregate  number of shares of Offered  Securities
with respect to which such default or defaults  occur  exceeds 10% of the number
of shares of Offered  Securities and arrangements  satisfactory to CSFBC and the
Sellers for the purchase of such  Offered  Securities  by other  persons are not
made within 36 hours after such default,  this Agreement will terminate  without
liability on the part of any non-defaulting  Purchaser or the Sellers, except as
provided in Section 9. As used in this Agreement,  the term "Purchaser" includes
any person  substituted for a Purchaser under this Section.  Nothing herein will
relieve a defaulting Purchaser from liability for its default.

         9. Survival of Certain Representations and Obligations.  The respective
indemnities, agreements, representations, warranties and other statements of the
Issuer  or its  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  Issuers  or any of  their  respective  representatives,
officers or directors or any controlling  person,  and will survive  delivery of
and payment for the Offered  Securities.  If for any reason the  purchase of the
Offered Securities by the Purchaser is not consummated,  the Issuer shall remain
responsible  for the  expenses  to be paid or  reimbursed  by them  pursuant  to
Section 5 (other than with respect to a defaulting Purchaser) and the respective
obligations of the Issuer and the Purchasers  pursuant to Section 7 shall remain
in effect.  If the purchase of the Offered  Securities by the  Purchasers is not
consummated  for any reason other than solely because of the termination of this
Agreement pursuant to Section 8 or solely because of the occurrence of any event
specified  in clause  (C),  (D) or (E) of  Section  6(b)(ii),  the  Issuer  will
reimburse the  Purchasers for all  out-of-pocket  expenses  (including  fees and
disbursements  of counsel)  reasonably  incurred by them in connection  with the
offering of the Offered Securities.

         10. Notices.  All  communications  hereunder will be in writing and, if
sent to the Purchasers will be mailed,  delivered or telecopied and confirmed to
the  Purchasers,  c/o Credit  Suisse First Boston  Corporation,  Eleven  Madison
Avenue, New York, NY 10010 or, if sent to the Sellers, will be mailed, delivered
or electronically  transmitted and confirmed to it at 230 Park Avenue, New York,
NY 10169,  Attention:  Timothy Graham;  provided,  however, that any notice to a
Purchaser  pursuant to Section 7 will be mailed,  delivered  or  telecopied  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  hereunder,  except that holders of Offered Securities shall
be entitled to enforce the agreements for their benefit  contained in the second
and third  sentences  of Section  5(b)  hereof  against  the  Issuers as if such
holders were parties thereto.

         12.  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts,  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  laws of the  State  of New York  without  regard  to
principles of conflicts of laws.




<PAGE>


                                                                             15

         Each of the parties 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.

         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  between  the  Sellers  and the
Purchasers in accordance with its terms.

                                   Very truly yours,

                                   WinStar Communications, Inc.


                                 By.........................................
                                   Name:
                                   Title:


                                   WinStar Multichannel Corp.


                                By..........................................
                                   Name:
                                   Title:

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

Credit Suisse First Boston Corporation
Smith Barney Inc.
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC

By Credit Suisse First Boston Corporation

By..........................................
    Name:
    Title:


<PAGE>


                                                                             16







                                   SCHEDULE A



<TABLE>
<CAPTION>


                                    Number of Shares          Number of Shares
                                      of Convertible           of Convertible
                                     Preferred Stock           Preferred Stock
Purchaser                            from the Issuer              from WMC              Total
- ---------------------              -------------------      -------------------      -------------

<S>                                   <C>                      <C>                   <C>
Credit Suisse First
 Boston Corporation                     2,035,000                  165,000            2,200,000

Smith Barney Inc.                       1,110,000                   90,000            1,200,000

Morgan Stanley & Co.
Incorporated                              370,000                   30,000              400,000

NationsBanc Montgomery
Securities LLC                            185,000                   15,000              200,000
                                      --------------          --------------        -------------

                                        3,700,000                  300,000            4,000,000
                                       =============          ==============        =============
</TABLE>



<PAGE>



                                              

                                                                  EXECUTION COPY


                          WINSTAR COMMUNICATIONS, INC.


                   CERTIFICATE OF DESIGNATIONS OF THE POWERS,
                PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL
                 AND OTHER SPECIAL RIGHTS OF SERIES D 7% SENIOR
               CUMULATIVE CONVERTIBLE PREFERRED STOCK DUE 2010 AND
              QUALIFICATIONS, LIMITATIONS AND RESTRICTIONS THEREOF



- -------------------------------------------------------------------------------
                         Pursuant to Section 151 of the
                General Corporation Law of the State of Delaware
- -------------------------------------------------------------------------------


                  WinStar  Communications,  Inc. (the "Company"),  a corporation
organized  and  existing  under  the  General  Corporation  Law of the  State of
Delaware,  does hereby  certify that,  pursuant to authority  conferred upon the
board of  directors of the Company  (the "Board of  Directors")  by its Restated
Certificate  of  Incorporation,  as  amended  (hereinafter  referred  to as  the
"Restated  Certificate  of  Incorporation"),  and pursuant to the  provisions of
Sections  141(c)(2)  and 151 of the  General  Corporation  Law of the  State  of
Delaware,  said Board of Directors is authorized to issue Preferred Stock of the
Company in one or more series and has duly  approved  and adopted the  following
resolution on March 10, 1998 (the "Resolution"):

                  RESOLVED that,  pursuant to the authority  vested in the Board
         of Directors by its Restated Certificate of Incorporation, the Board of
         Directors does hereby create, authorize and provide for the issuance of
         Series D 7% Senior Cumulative Convertible Preferred Stock Due 2010, par
         value $.01 per share,  with a liquidation  preference of $50 per share,
         consisting of 4,000,000  shares having the  designations,  preferences,
         relative,  participating,  optional  and other  special  rights and the
         qualifications, limitations and restrictions thereof that are set forth
         in the Restated  Certificate of Incorporation and in this Resolution as
         follows:

                  (a) Designation. There is hereby created out of the authorized
and  unissued  shares of  Preferred  Stock of the Company a series of  Preferred
Stock  designated as the "Series D 7% Senior  Cumulative  Convertible  Preferred
Stock  Due 2010"  (the  "Convertible  Preferred  Stock").  The  number of shares
constituting the Convertible Preferred Stock shall be 4,000,000. The liquidation



<PAGE>


                                                                              2

preference  of the  Convertible  Preferred  Stock  shall be $50 per  share  (the
"Liquidation Preference").

                  Capitalized  terms used herein but not defined  shall have the
meanings assigned to them in paragraph (m).

                  (b) Rank. The  Convertible  Preferred Stock will, with respect
to dividend rights and rights on liquidation,  winding-up and dissolution,  rank
(i)  senior to all  classes  of Common  Stock and to the  Company's  6% Series A
Cumulative  Convertible  Preferred Stock (the "Series A Preferred Stock") and to
each other class of Capital Stock of the Company or series of Preferred Stock of
the Company established  hereafter by the Board of Directors of the Company, the
terms of which do not expressly  provide that it ranks senior to, or on a parity
with,  the  Convertible  Preferred  Stock as to  dividend  rights  and rights on
liquidation,  winding-up and dissolution of the Company  (collectively  referred
to,  together  with all  classes  of Common  Stock of the  Company,  as  "Junior
Stock");  (ii) on a parity with the Company's Series C 14-1/4% Senior Cumulative
Exchangeable  Preferred Stock Due 2007 (the "Series C Preferred Stock") and each
other class of Capital Stock of the Company or series of Preferred  Stock of the
Company  established  hereafter by the Board of  Directors  of the Company,  the
terms of which expressly provide that such class or series will rank on a parity
with the  Convertible  Preferred  Stock as to  dividend  rights  and  rights  on
liquidation,  winding-up and  dissolution  (collectively  referred to as "Parity
Stock");  and (iii)  junior to each  class of  Capital  Stock of the  Company or
series of Preferred Stock of the Company  established  hereafter by the Board of
Directors of the Company,  the terms of which expressly  provide that such class
or series will rank  senior to the  Convertible  Preferred  Stock as to dividend
rights or rights on  liquidation,  winding-up  and  dissolution  of the  Company
(collectively referred to as "Senior Stock").

                  (c)  Dividends.  (i)  Holders  of the  outstanding  shares  of
Convertible  Preferred  Stock  will be  entitled  to  receive,  when,  as and if
declared  by the  Board  of  Directors  of the  Company,  out of  funds  legally
available therefor,  dividends on each share of the Convertible  Preferred Stock
at a rate per annum  equal to 7% of the  Liquidation  Preference  of such  share
payable  quarterly  (each such quarterly  period being herein called a "Dividend



<PAGE>


                                                                              3

Period").  In addition to the  dividends  described in the  preceding  sentence,
holders of outstanding shares of Convertible Preferred Stock will be entitled to
additional dividends (the "Additional  Dividends"),  when, as and if declared by
the Board of Directors of the Company,  out of funds legally available therefor,
with respect to the shares of  Convertible  Preferred  Stock,  which  Additional
Dividends  shall  accrue as follows if any of the  following  events occur (each
such event in clauses  (A) and (B) below  being  herein  called a  "Registration
Default"):  (A) if by August 15, 1998 (or if such day is not a Business Day, the
next  following  Business Day),  the Shelf  Registration  Statement has not been
declared  effective by the  Commission;  or (B) if after the Shelf  Registration
Statement is declared effective (1) the Shelf Registration  Statement thereafter
ceases to be effective;  or (2) the Shelf Registration  Statement or the related
prospectus  ceases to be  usable  (in each case  except as  permitted  below) in
connection with resales of Transfer Restricted Securities in accordance with and
during the periods specified herein.

                  Additional Dividends shall accrue on the shares of Convertible
Preferred  Stock  from and  including  the date on which  any such  Registration
Default shall occur,  to but  excluding the date on which all such  Registration
Defaults have been cured, at a rate of 2% per annum.

                  A Registration  Default referred to in clause (B) of paragraph
(c)(i) shall be deemed not to have occurred and be continuing in relation to the
Shelf Registration  Statement or the related prospectus if (i) such Registration
Default has  occurred  solely as a result of (x) the filing of a  post-effective
amendment to the Shelf  Registration  Statement to  incorporate  annual  audited
financial  information  with  respect to the Company  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) other material events with respect
to the  Company  that  would  need to be  described  in the  Shelf  Registration
Statement  or the related  prospectus  and (ii) in the case of clause  (y),  the
Company  proceeds  promptly and in good faith to amend or  supplement  the Shelf
Registration Statement and related prospectus to describe such events unless the
Company has determined in good faith that there are material legal or commercial
impediments  in  doing  so;  provided,   however,  that  in  any  case  if  such
Registration  Default referred to in clause (B) of paragraph (c)(i) occurs for a
continuous period in excess of 45 days, Additional Dividends shall be payable in
accordance with the immediately preceding paragraphs of this paragraph (c)(i)


<PAGE>


                                                                              4

from the 46th day after such  Registration  Default  initially occurs until such
Registration Default is cured.

                  Any amounts of  Additional  Dividends  due pursuant to clauses
(A) or (B) of this paragraph (c)(i) or pursuant to the proviso  contained in the
preceding  sentence will be payable on the regular  dividend  payment dates with
respect to the Convertible  Preferred Stock and on the same terms and conditions
and subject to the same  limitations  as pertain at such time for the payment of
regular  dividends.  The amount of  Additional  Dividends  will be determined by
multiplying  the  Additional   Dividends  rate  by  the  aggregate   liquidation
preference of the outstanding shares of Convertible Preferred Stock,  multiplied
by a  fraction,  the  numerator  of which is the number of days such  Additional
Dividend 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.

                  All dividends on the Convertible  Preferred  Stock,  including
Additional Dividends, to the extent accrued, shall be cumulative, whether or not
earned or declared,  on a daily basis from the last date through which dividends
have been paid or, if no  dividends  have been paid,  from the Issue  Date,  and
shall be payable  quarterly  in arrears on March 15, June 15,  September  15 and
December  15 of each  year  (each a  "Dividend  Payment  Date"),  commencing  on
September  15,  1998 to  holders  of  record  on the  Business  Day  immediately
preceding the relevant Dividend Payment Date.

                  Any dividend on the  Convertible  Preferred Stock shall be, at
the option of the Company, payable (i) in cash or (ii) through the issuance of a
number of shares  (rounded  up or down to the  nearest  whole  number) of Common
Stock (hereinafter referred to as "Dividend Common Stock") equal to the dividend
amount divided by the Discounted  Current Market Value (as defined below) of the
Common Stock; provided, however, that the Company shall not pay any dividends on
the Convertible  Preferred Stock in cash prior to the date all obligations under
each of the  Specified  Indentures  shall  have  been  satisfied  in  full  (the
"Specified Debt Satisfaction Date").

                  The "Discounted Current Market Value" of the Common Stock with
respect to a  Dividend  Payment  Date  means the  product of (x) 97% and (y) the
closing bid price for the Common Stock as reported by the NNM, or the  principal
securities exchange or other securities market on which the Common Stock is then
being traded,  on the fourth Trading Day preceding  such Dividend  Payment Date.



<PAGE>


                                                                           5

"Trading  Day" means any day on which the Common  Stock is traded for any period
on the NNM (or on the principal  securities  exchange or other securities market
on which the Common Stock is then being traded).

                  "Specified Indentures" means the following:  (i) the Indenture
dated  October 23,  1995,  governing  the 14%  Convertible  Senior  Subordinated
Discount  Notes Due 2005 of the Company;  (ii) the  Indenture  dated October 23,
1995 governing the 14% Senior Discount Notes Due 2005 of the Company;  (iii) the
Indenture  dated as of March 1,  1997,  governing  the 14 1/2%  Senior  Deferred
Interest Notes Due 2005 of the Company;  (iv) the Indenture dated as of March 1,
1997,  governing the 12 1/2% Senior Secured Notes Due 2004 of WinStar  Equipment
Corp.;  (v) the  Indenture  dated as of August 1,  1997,  governing  the 12 1/2%
Senior Secured Notes Due 2004 of WinStar  Equipment II Corp.; (vi) the Indenture
dated as of October  1, 1997,  governing  the 15% Senior  Subordinated  Deferred
Interest  Notes Due 2007 of the Company;  and (vii) the  Indenture to be entered
into with respect to the 14 1/4% Senior Subordinated Deferred Interest Notes Due
2007 of the  Company  that may be issued  upon  exchange  for Series C Preferred
Stock of the Company.

                  If within  two  years  after  the  Issue  Date a  Registration
Default  shall have  occurred and be continuing on a record date in respect of a
Dividend Payment Date on which dividends are to be paid in respect of any shares
of Convertible Preferred Stock (such deferred dividends being herein referred to
as "Deferred Dividends") in shares of Dividend Common Stock, then such dividends
shall  not be  paid  on  such  Dividend  Payment  Date  but  shall  be paid on a
subsequent payment date (each such subsequent payment is herein referred to as a
"Deferred Dividend Payment Date"),  determined by the Company,  which shall be a
date  after,  but  not  more  than  15  Trading  Days  after,  such  time as all
Registration Defaults have been cured or all the shares of Dividend Common Stock
to be paid in respect of such  Deferred  Dividends are eligible to be sold under
Rule 144(k) under the Securities Act. The Discounted Current Market Value of the
Common  Stock  with  respect to such  Deferred  Dividend  Payment  Date shall be
determined  on the fourth  Trading Day prior to such Deferred  Dividend  Payment
Date, and such Deferred Dividends, together with dividends (including Additional
Dividends  for the  period  during  which the  Registration  Default  continues)
accrued from the Dividend Payment Date as to which such Deferred  Dividends were
not paid to but excluding such Deferred Dividends Payment Date, shall be paid to
the holders of record on the Business Day next preceding such Deferred  Dividend



<PAGE>


                                                                             6

Payment  Date.  The  Company  shall give  notice to the  Holders of  Convertible
Preferred Stock of any date to be designated a Deferred  Dividends  Payment Date
at least ten Trading Days prior to such Deferred Dividend Payment Date.

                  (ii)  All  dividends  paid  with  respect  to  shares  of  the
Convertible  Preferred Stock pursuant to paragraph (c)(i) shall be paid pro rata
to the holders entitled thereto.

                  (iii) No dividend  whatsoever  shall be declared or paid upon,
or any sum set apart for the payment of dividends upon, any outstanding share of
the  Convertible  Preferred Stock with respect to any Dividend Period unless all
dividends  for all  preceding  Dividend  Periods have been  declared and paid or
declared and a sufficient sum set apart for the payment of such  dividend,  upon
all  outstanding  shares of  Convertible  Preferred  Stock.  No dividend will be
declared or paid on any Parity Stock unless full cumulative  dividends have been
paid  on the  Convertible  Preferred  stock  for  all  prior  Dividend  Periods;
provided,  however, that if accrued dividends on the Convertible Preferred Stock
for all prior  Dividend  Periods  have not been  paid in full then any  dividend
declared on the  Convertible  Preferred Stock for any Dividend Period and on any
Parity  Stock will be  declared  ratably  in  proportion  to accrued  and unpaid
dividends on the Convertible Preferred Stock and such Parity Stock.

                  (iv) The Company will not (A) declare,  pay or set apart funds
for the payment of any dividend or other distribution with respect to any Junior
Stock or (B) redeem,  purchase or otherwise acquire for consideration any Junior
Stock  through a sinking  fund or  otherwise,  unless (1) all accrued and unpaid
dividends with respect to the  Convertible  Preferred Stock and any Parity Stock
at the time such  dividends  are  payable  have been paid or funds have been set
apart for payment of such dividends and (2)  sufficient  funds have been paid or
set apart for the payment of the dividend for the current  Dividend  Period with
respect to the Convertible Preferred Stock and any Parity Stock. Notwithstanding
anything in this  Certificate of Designations  to the contrary,  the Company may
declare and pay dividends on Parity Stock which are payable solely in additional
shares of or by the increase in the liquidation  value of Parity Stock or Junior
Stock or on Junior  Stock  which are payable in  additional  shares of or by the
increase in the liquidation value of Junior Stock, as applicable, or repurchase,
redeem or otherwise acquire Junior Stock in exchange for Junior Stock and Parity
Stock in exchange for Parity Stock or Junior Stock.



<PAGE>


                                                                              7

                  (v)  Dividends  on account of  arrears  for any past  Dividend
Period and dividends in connection with any optional  redemption may be declared
and paid at any time, without reference to any regular Dividend Payment Date, to
holders of record on the Business Day immediately  prior to the payment thereof,
as may be fixed by the Board of Directors of the Company.

                  (vi) Dividends payable on the Convertible  Preferred Stock for
any period  other than a Dividend  Period  shall be  computed  on the basis of a
360-day year consisting of twelve 30-day months.  If a Dividend  Payment Date is
not a Business Day,  payment of dividends  shall be made on the next  succeeding
Business Day and dividends  accruing for the intervening period shall be paid on
the next succeeding Dividend Payment Date.

                  (d)  Liquidation   Preference.   (i)  Upon  any  voluntary  or
involuntary  liquidation,  dissolution or winding-up of the Company,  holders of
Convertible  Preferred  Stock will be entitled to be paid,  out of the assets of
the Company  available for  distribution  to its  stockholders,  the Liquidation
Preference of the  outstanding  shares of  Convertible  Preferred  Stock,  plus,
without  duplication,  an amount in cash  equal to all  accumulated  and  unpaid
dividends (whether or not earned or declared and including Additional Dividends,
if any,) thereon to the date fixed for  liquidation,  dissolution  or winding-up
(including  an amount equal to a prorated  dividend for the period from the last
Dividend  Payment  Date  to the  date  fixed  for  liquidation,  dissolution  or
winding-up that would have been payable had the Convertible Preferred Stock been
the subject of an redemption on such date pursuant to paragraph  (e)(i))  before
any  distribution  is made on any  Junior  Stock.  If,  upon  any  voluntary  or
involuntary  liquidation,  dissolution or winding up of the Company, the amounts
payable with respect to the Convertible Preferred Stock and all Parity Stock are
not paid in full,  the  Convertible  Preferred  Stock and the Parity  Stock will
share equally and ratably (in proportion to the respective amounts that would be
payable on such  shares of  Convertible  Preferred  Stock and the Parity  Stock,
respectively,  if all  amounts  payable  thereon  had been  paid in full) in any
distribution  of assets of the Company to which each is entitled.  After payment
of the full amount of the Liquidation  Preference of the  outstanding  shares of
Convertible  Preferred Stock (and, if applicable,  an amount equal to a prorated
dividend),  the  holders of shares of  Convertible  Preferred  Stock will not be
entitled  to any  further  participation  in any  distribution  of assets of the
Company.


<PAGE>


                                                                              8

                  (ii) For the purposes of this paragraph (d), neither the sale,
conveyance, exchange or transfer (for cash, shares of stock, securities or other
consideration)  of all or  substantially  all of the  property  or assets of the
Company nor the  consolidation or merger of the Company with or into one or more
other entities shall be deemed to be a liquidation, dissolution or winding-up of
the Company.

                  (e) Redemption.  (i) Optional Redemption.  (A) The Convertible
Preferred  Stock shall not be  redeemable  at the option of the Company prior to
March 20,  2001.  On or after  March 20,  2001,  each  share of the  Convertible
Preferred  Stock may be  redeemed  (subject to the legal  availability  of funds
therefor) at any time, in whole or in part, at the option of the Company, at the
redemption prices set forth below,  payable in cash, plus, without  duplication,
an  amount  in  cash  equal  to all  accrued  and  unpaid  dividends  (including
Additional Dividends) to the date fixed for redemption (the "Optional Redemption
Date")  (including an amount in cash equal to a prorated dividend for the period
from the Dividend  Payment  Date  immediately  prior to the Optional  Redemption
Date) (the "Optional Redemption Price").


                  If  redeemed  during  the  period  commencing  March 20,  2001
through March 14, 2002, the redemption price shall be $51.75.

                  If redeemed during the 12-month period  commencing on March 15
of the years set forth below, the redemption prices shall be:


     Period                                              Redemption
                                                            Price
     ------                                              -----------

     2002..................................                 $51.17
     2003..................................                  50.58
     2004 and thereafter...................                  50.00

                  (B) In the case of any partial optional redemption,  selection
of the Convertible Preferred Stock for redemption will be made by the Company in
compliance with the requirements of the principal national securities  exchange,
if  any,  on  which  the  Convertible  Preferred  Stock  is  listed,  or if  the
Convertible  Preferred Stock is not listed on a national securities exchange, on
a pro rata  basis,  by lot or such  other  method  as the  Company,  in its sole
discretion, shall deem fair and appropriate; provided, however, that the Company
may redeem  all the  shares  held by holders of fewer than 100 shares (or all of



<PAGE>


                                                                             9

the shares  held by the  holders who would hold less than 100 shares as a result
of such redemption) as may be determined by the Company.

                  (C) In the case of a redemption  date  falling  after a record
date and  prior  to the  related  Dividend  Payment  Date,  the  holders  of the
Convertible Preferred Stock at the close of business on such record date will be
entitled to receive  the  dividend  payable on such shares on the  corresponding
Dividend Payment Date,  notwithstanding  the redemption of such shares following
such record date. Except as provided for in the preceding  sentence,  no payment
or allowance  will be made for accrued  dividends  on any shares of  Convertible
Preferred Stock called for redemption.

                  (ii)  Mandatory  Redemption.  Each  share  of the  Convertible
Preferred  Stock (if not  earlier  redeemed  or  converted)  shall be subject to
mandatory  redemption  in whole  (to the  extent  of  lawfully  available  funds
therefor) on March 15, 2010 (the "Mandatory Redemption Date") at a price in cash
equal  to 100%  of the  Liquidation  Preference  of such  share,  plus,  without
duplication, all accrued and unpaid dividends thereon (including an amount equal
to a prorated dividend thereon from the immediately  preceding  Dividend Payment
Date to the Mandatory Redemption Date), if any, to the Mandatory Redemption Date
(the "Mandatory  Redemption Price"). The Company shall take all actions required
or  permitted  by  Delaware  law to  permit  the  redemption  described  in this
paragraph (e)(ii).

                  (iii) Procedure for Redemption.  (A) On and after the Optional
Redemption  Date or the  Mandatory  Redemption  Date,  as the  case  may be (the
"Redemption Date"), unless the Company defaults in the payment of the applicable
redemption  price,  dividends  will cease to accumulate on shares of Convertible
Preferred  Stock called for  redemption and all rights of holders of such shares
will terminate except for the right to receive the Optional  Redemption Price or
the Mandatory Redemption Price, as the case may be, without interest;  provided,
however,  that if a notice of  redemption  shall have been given as  provided in
subparagraph  (iii)(B) and the funds  necessary  for  redemption  (including  an
amount in respect of all  dividends  that will  accrue to the  Redemption  Date)
shall have been segregated and  irrevocably  set apart by the Company,  in trust
for the  benefit  of the  holders  of the shares  called  for  redemption,  then
dividends  shall cease to accumulate on the Redemption  Date on the shares to be
redeemed  and,  at the  close of  business  on the day on which  such  funds are
segregated and set apart,  the holders of the shares to be redeemed shall,  with



<PAGE>


                                                                             10

respect to the shares to be redeemed,  cease to be  stockholders  of the Company
and shall be  entitled  only to receive  the  Optional  Redemption  Price or the
Mandatory Redemption Price, as the case may be, for such shares without interest
from the Redemption Date.

                  (B) With respect to a redemption  pursuant to paragraph (e)(i)
or (e)(ii),  the Company will send a written notice of redemption by first class
mail to each  holder of record of shares of  Convertible  Preferred  Stock,  not
fewer  than 15 days nor more than 60 days  prior to the  Redemption  Date at its
registered address (the "Redemption Notice"); provided, however, that no failure
to give such notice nor any deficiency  therein shall affect the validity of the
procedure for the redemption of any shares of Convertible  Preferred Stock to be
redeemed  except as to the holder or holders to whom the  Company  has failed to
give said  notice  or  except as to the  holder  or  holders  whose  notice  was
defective. The Redemption Notice shall state:

                  (1) whether the redemption is pursuant to
         paragraph (e)(i) or (e)(ii) hereof;

                  (2) the Optional Redemption Price or the Mandatory  Redemption
         Price, as the case may be;

                  (3) whether all or less than all the outstanding shares of the
         Convertible  Preferred Stock are to be redeemed and the total number of
         shares of the Convertible Preferred Stock being redeemed;

                  (4) the Redemption Date;

                  (5) that the holder is to  surrender  to the  Company,  in the
         manner,  at the  place  or  places  and at the  price  designated,  his
         certificate  or  certificates  representing  the shares of  Convertible
         Preferred Stock to be redeemed; and

                  (6) that dividends on the shares of the Convertible  Preferred
         Stock to be redeemed shall cease to accumulate on such  Redemption Date
         unless the Company  defaults in the payment of the Optional  Redemption
         Price or the Mandatory Redemption Price, as
         the case may be.

                  (C) Each holder of Convertible Preferred Stock shall surrender
the  certificate  or  certificates   representing  such  shares  of  Convertible
Preferred  Stock to the Company,  duly endorsed (or otherwise in proper form for



<PAGE>


                                                                           11

transfer,  as  determined  by the  Company),  in  the  manner  and at the  place
designated  in the  Redemption  Notice,  and on the  Redemption  Date  the  full
Optional Redemption Price or Mandatory Redemption Price, as the case may be, for
such shares  shall be payable in cash to the person  whose name  appears on such
certificate  or  certificates  as  the  owner  thereof,   and  each  surrendered
certificate  shall be canceled and  retired.  In the event that less than all of
the shares  represented by any such certificate are redeemed,  a new certificate
shall be issued representing the unredeemed shares.

                  (f) Voting Rights.  (i) The holders of  Convertible  Preferred
Stock,  except  as  otherwise  required  under  Delaware  law or as set forth in
paragraphs  (ii) and (iii)  below,  shall not be  entitled to vote on any matter
required or permitted to be voted upon by the stockholders of the Company.

                  (ii) (A) If (1) dividends on the  Convertible  Preferred Stock
are in arrears  and  unpaid for six or more  Dividend  Periods  (whether  or not
consecutive); or (2) the Company fails to redeem the Convertible Preferred Stock
on March 15,  2010,  then the  number  of  directors  constituting  the Board of
Directors will, subject to paragraph  (f)(ii)(E),  be increased by two directors
and the Holders of the then  outstanding  shares of Convertible  Preferred Stock
(together  with the  holders of Parity  Stock upon which like  rights  have been
conferred and are exercisable), voting separately and as a class, shall have the
right and power to elect to serve on the Board of  Directors  the  lesser of (x)
such two  additional  members to the Board of  Directors  or (y) that  number of
directors  constituting  at least 25% of the members of the Board of  Directors.
Each such  event  described  in  clauses  (1) or (2)  above is a "Voting  Rights
Triggering Event".

                  (B) The voting rights set forth in paragraph  (f)(ii)(A) above
will  continue  until such time as all  dividends in arrears on the  Convertible
Preferred Stock, or the Mandatory Redemption Price, as the case may be, are paid
in  full,  at  which  time the term of any  directors  elected  pursuant  to the
provisions of paragraph (f)(ii)(A) above (subject to the right of holders of any
other  Preferred  Stock  to  elect  directors  pursuant  to  the  terms  of  the
instruments  governing such Preferred  Stock) shall terminate  forthwith and the
number of directors  constituting  the Board of Directors  shall be decreased by
such number (until the  occurrence of any  subsequent  Voting Rights  Triggering
Event).



<PAGE>


                                                                            12

                  At any time after voting power to elect  directors  shall have
become vested and be continuing in the holders of  Convertible  Preferred  Stock
(together  with the  holders of Parity  Stock upon which like  rights  have been
conferred and are exercisable)  pursuant to paragraph  (f)(ii)(A)  hereof, or if
vacancies  shall exist in the offices of directors  elected by such  holders,  a
proper  officer of the Company may, and upon the written  request of the holders
of record of at least 25% of the  shares of  Convertible  Preferred  Stock  then
outstanding or the holders of 25% of the shares of Parity Stock then outstanding
upon which like rights have been confirmed and are exercisable  addressed to the
secretary  of the  Company  shall,  call a special  meeting  of the  Holders  of
Convertible Preferred Stock and the holders of such Parity Stock for the purpose
of electing the directors  which such holders are entitled to elect  pursuant to
the terms  hereof;  provided,  however,  that no such special  meeting  shall be
called if the next annual meeting of  stockholders  of the Company is to be held
within 60 days  after the voting  power to elect  directors  shall  have  become
vested,  in which case such meeting shall be deemed to have been called for such
next annual meeting.  If such meeting shall not be called by a proper officer of
the  Company  within 20 days  after  personal  service to the  secretary  of the
Company at its  principal  executive  offices,  then the Holders of record of at
least  25% of the  outstanding  shares  of  Convertible  Preferred  Stock or the
holders of 25% of the shares of Parity  Stock upon which like  rights  have been
confirmed and are  exercisable  may designate in writing one of their members to
call such meeting at the expense of the Company,  and such meeting may be called
by the person so designated  upon the notice required for the annual meetings of
stockholders  of the  Company  and shall be held at the place  for  holding  the
annual meetings of  stockholders.  Any holder of Convertible  Preferred Stock or
such Parity  Stock so  designated  shall have,  and the Company  shall  provide,
access to the lists of holders of Convertible Preferred Stock and the holders of
such Parity Stock to be called pursuant to the provisions  hereof. If no special
meeting of the Holders of  Convertible  Preferred  Stock and the holders of such
Parity Stock is called as provided in this paragraph (f)(ii),  then such meeting
shall be deemed to have been called for the next annual meeting of  stockholders
of the Company or special  meeting of the holders of any other  Capital Stock of
the Company.

                  (C) At any meeting held for the purposes of electing directors
at which the Holders of Convertible  Preferred  Stock (together with the holders
of  Parity  Stock  upon  which  like  rights  have  been  conferred  and  are


<PAGE>


                                                                             13

exercisable) shall have the right, voting together as a separate class, to elect
directors as aforesaid,  the presence in person or by proxy of the holders of at
least a  majority  in voting  power of the  outstanding  shares  of  Convertible
Preferred Stock (and such Parity Stock) shall be required to constitute a quorum
thereof.

                  (D) Any vacancy  occurring in the office of a director elected
by the Holders of  Convertible  Preferred  Stock (and such Parity  Stock) may be
filled by the remaining director elected by the Holders of Convertible Preferred
Stock (and such Parity  Stock)  unless and until such vacancy shall be filled by
the Holders of Convertible Preferred Stock (and such Parity Stock).

                  (E) In the  event  that an  event  occurs  at any  time  which
results  in the  holders  of any  Parity  Stock  having  voting  rights to elect
directors to the Board of  Directors,  holders of  Convertible  Preferred  Stock
shall,  whether  or  not  such  event  otherwise  constitutes  a  Voting  Rights
Triggering  Event pursuant to paragraph  (f)(ii)(A),  have the voting rights set
forth in paragraphs  (f)(ii)(A) and  (f)(ii)(B),  and such event shall be deemed
(for  purposes  of this  paragraph  (f)  only) to  constitute  a  Voting  Rights
Triggering  Event.  In  addition,  in the  event  that  during  a time in  which
directors elected by the holders of Convertible Preferred Stock pursuant to this
paragraph  (f)(ii)  are serving on the Board of  Directors  ("Previously-Elected
Directors")  an event  occurs  which  results in holders of Parity  Stock having
voting  rights  to elect  (voting  together  with  the  holders  of  Convertible
Preferred  Stock) at least two directors to the Board of Directors,  the holders
of  Convertible  Preferred  Stock shall vote  together  with the holders of such
Parity  Stock to elect  such new  directors,  and upon the  election  of the new
directors   the    Previously-    Elected    Directors    shall   (unless   such
Previously-Elected Directors are elected as new directors) cease to serve on the
Board of Directors.

                  (iii) (A) So long as any shares of the  Convertible  Preferred
Stock are  outstanding,  the Company will not authorize,  create or increase the
authorized amount of any class or series of (1) Senior Stock or (2) Parity Stock
that has a mandatory  redemption date earlier than the Mandatory Redemption Date
of, or an Average Life less than the Average Life of, the Convertible  Preferred
Stock,  in each case  without the  affirmative  vote or consent of holders of at
least two-thirds of the shares of Convertible  Preferred Stock then outstanding,
voting or  consenting,  as the case may be, as one class,  given in person or by


<PAGE>


                                                                            14

proxy,  either in  writing  or by  resolution  adopted  at an annual or  special
meeting.  However,  without the consent of any holder of  Convertible  Preferred
Stock,  the  Company  may  create  additional  classes  of stock,  increase  the
authorized number of shares of Preferred Stock or issue a series of Parity Stock
or  Junior  Stock  (subject,  in the  case of  Parity  Stock,  to the  preceding
sentence).

                  (B) So long as any shares of the  Convertible  Preferred Stock
are outstanding,  the Company will not amend this Certificate of Designations so
as to affect adversely the specified rights,  preferences,  privileges or voting
rights of Holders of shares of Convertible  Preferred  Stock or to authorize the
issuance of any  additional  shares of Convertible  Preferred  Stock without the
affirmative  vote or consent of Holders of at least  majority  of the issued and
outstanding shares of Convertible Preferred Stock, voting or consenting,  as the
case may be, as one class, given in person or by proxy,  either in writing or by
resolution  adopted  at  an  annual  or  special  meeting.  Notwithstanding  the
foregoing,  the Company when authorized by resolutions of its Board of Directors
may amend or supplement this Certificate of Designations  without the consent of
any  Holder to cure any  ambiguity,  defect or  inconsistency  or make any other
change provided that such amendments or supplements  shall not adversely  affect
the interests of the Holders.

                  (C) Except as set forth in paragraph (f)(iii)(A) or (B) above,
(x) the creation, authorization or issuance of any shares of any Junior Stock or
Parity Stock,  including the  designation of a series of  Convertible  Preferred
Stock, or (y) the increase or decrease in the amount of authorized Capital Stock
of any class,  including  Preferred  Stock,  shall not  require  the  consent of
Holders  of  Convertible  Preferred  Stock  and  shall  not be  deemed to affect
adversely  the rights,  preferences,  privileges  or voting  rights of shares of
Convertible Preferred Stock.

                  (iv) In any case in which the Holders of Convertible Preferred
Stock shall be entitled to vote  pursuant to this  paragraph  (f) or pursuant to
Delaware law, each Holder of Convertible  Preferred  Stock entitled to vote with
respect  to such  matters  shall be  entitled  to one  vote  for  each  share of
Convertible Preferred Stock held.

                  (v) Except as required by law, the Holders of the  Convertible
Preferred  Stock will not be  entitled  to vote on any  merger or  consolidation
involving  the Company or a sale of all or  substantially  all the assets of the
Company.


<PAGE>


                                                                            15

                  (g)  Conversion.  (i) At any time after the Issue Date, at the
option of the Holder  thereof,  any share of Convertible  Preferred Stock may be
converted   at  the   Liquidation   Preference   thereof  into  fully  paid  and
nonassessable  Common Stock  (calculated  as to each  conversion  to the nearest
1/100 of a share), at the Conversion Price,  determined as hereinafter provided,
in effect at the time of conversion.  Such conversion  right shall expire at the
close  of  business  on the  Mandatory  Redemption  Date.  In  case a  share  of
Convertible  Preferred Stock is called for optional redemption,  such conversion
right in respect of the share of  Convertible  Preferred  Stock so called  shall
expire at the close of  business on the  applicable  Optional  Redemption  Date,
unless the Company defaults in making the payment due upon redemption.

                  The  price at which  Common  Stock  shall  be  delivered  upon
conversion (herein called the "Conversion  Price") shall be initially $49.61 per
share of Common  Stock.  The  Conversion  Price  shall be  adjusted  in  certain
instances as provided in paragraph (g)(iv) and paragraph (g)(v).

                  (ii) In order to exercise the conversion privilege, the Holder
of any share of Convertible  Preferred Stock to be converted shall surrender the
certificate  for such share of  Convertible  Preferred  Stock,  duly endorsed or
assigned to the Company or in blank,  at the office of the Transfer  Agent or at
any office or agency of the Company maintained for that purpose,  accompanied by
written notice to the Company in the form of Exhibit B that the Holder elects to
convert  such  share of  Convertible  Preferred  Stock or, if fewer than all the
shares of Convertible  Preferred Stock represented by a single share certificate
are to be converted,  the number of shares represented  thereby to be converted.
Such  notice  shall also  contain the office or the address to which the Company
should deliver shares of Common Stock  issuable upon  conversion  (and any other
payments or certificates related thereto).

                  Holders of shares of Convertible  Preferred Stock at the close
of business on a record date will be entitled to receive the dividend payable on
such shares on the  corresponding  Dividend  Payment  Date  notwithstanding  the
conversion of such shares  following such record date and prior to such Dividend
Payment Date.  However,  shares of Convertible  Preferred Stock  surrendered for
conversion  during the period  between  the close of business on any record date
and the opening of business on the  corresponding  Dividend Payment Date (except
shares  converted after the issuance of a notice of redemption with respect to a


<PAGE>


                                                                           16

redemption  date during such  period,  which will be entitled to such  dividend)
must be  accompanied  by payment of an amount equal to the  dividend  payable on
such shares on such  Dividend  Payment  Date. A holder of shares of  Convertible
Preferred  Stock on a record  date who (or whose  transferee)  tenders  any such
shares for conversion into shares of Common Stock on such Dividend  Payment Date
will receive the dividend  payable by the Company on such shares of  Convertible
Preferred Stock on such date, and the converting holder need not include payment
of the amount of such dividend upon surrender of shares of Convertible Preferred
Stock for conversion. Except as provided above, the Company will make no payment
or  allowance  for unpaid  dividends,  whether or not in arrears,  on  converted
shares  or the  dividends  on the  shares  of  Common  Stock  issued  upon  such
conversion.

                  Shares of Convertible  Preferred Stock shall be deemed to have
been  converted  immediately  prior  to the  close  of  business  on the  day of
surrender  of such  shares of  Convertible  Preferred  Stock for  conversion  in
accordance  with the  foregoing  provisions,  and at such time the rights of the
Holders of such shares of  Convertible  Preferred  Stock as Holders shall cease,
and the person or persons  entitled to receive the Common  Stock  issuable  upon
conversion  shall be treated for all purposes as the record holder or holders of
such  Common  Stock at such time.  As promptly  as  practicable  on or after the
conversion  date,  the Company  shall issue and shall  deliver to such office or
agency as the converting  Holder shall have  designated in its written notice to
the  Company a  certificate  or  certificates  for the number of full  shares of
Common Stock  issuable  upon  conversion,  together  with payment in lieu of any
fraction of a share, as provided in paragraph (g)(iii) hereof.

                  In the case of any  conversion of fewer than all the shares of
Convertible Preferred Stock evidenced by a certificate, upon such conversion the
Company shall execute and the Transfer Agent shall  authenticate  and deliver to
the Holder thereof (at the address designated by such Holder), at the expense of
the  Company,  a new  certificate  or  certificates  representing  the number of
unconverted shares of Convertible Preferred Stock.

                  (iii) No  fractional  Common  Stock  shall be issued  upon the
conversion of a share of Convertible  Preferred Stock. If more than one share of
Convertible  Preferred  Stock shall be surrendered for conversion at one time by
the same  holder,  the  number of full  shares of Common  Stock  which  shall be



<PAGE>


                                                                            17

issuable upon conversion thereof shall be computed on the basis of the aggregate
shares of Convertible Preferred Stock so surrendered.  Instead of any fractional
share of Common Stock which would  otherwise be issuable upon  conversion of any
share of Convertible Preferred Stock, the Company shall pay a cash adjustment in
respect of such  fraction in an amount equal to the same fraction of the closing
price (as  defined in  paragraph  (g)(iv)(7))  per share of Common  Stock at the
close of business on the Business Day prior to the day of conversion.

                  (iv) The Conversion  Price shall be adjusted from time to time
by the Company as follows:

                  (1) If the Company  shall  hereafter  pay a dividend or make a
         distribution in Common Stock to all holders of any outstanding class or
         series of Common Stock,  the Conversion  Price in effect at the opening
         of business on the date following the date fixed for the  determination
         of stockholders entitled to receive such dividend or other distribution
         shall be reduced by multiplying  such Conversion Price by a fraction of
         which the  numerator  shall be the  number  of  shares of Common  Stock
         outstanding  at the close of business on the Record Date (as defined in
         paragraph  (g)(iv)(7)) fixed for such determination and the denominator
         shall be the sum of such  number of  outstanding  shares  and the total
         number of shares constituting such dividend or other distribution, such
         reduction to become effective immediately after the opening of business
         on the day following  the Record Date. If any dividend or  distribution
         of the type described in this paragraph  (g)(iv)(i) is declared but not
         so paid or made,  the  Conversion  Price shall again be adjusted to the
         Conversion  Price  which  would then be in effect if such  dividend  or
         distribution had not been declared.

                  (2) If the Company  shall offer or issue rights or warrants to
         all holders of its outstanding Common Stock entitling them to subscribe
         for or purchase Common Stock at a price per share less than the Current
         Market  Price (as defined in paragraph  (g)(iv)(7))  on the Record Date
         fixed for the  determination  of stockholders  entitled to receive such
         rights or warrants,  the Conversion Price shall be adjusted so that the
         same shall equal the price  determined by  multiplying  the  Conversion
         Price in effect at the  opening  of  business  on the date  after  such
         Record Date by a fraction of which the numerator shall be the number of
         shares of Common  Stock  outstanding  at the close of  business  on the
         Record Date plus the number of shares of Common


<PAGE>


                                                                            18

         Stock which the aggregate  offering price of the total number of shares
         of Common Stock  subject to such rights or warrants  would  purchase at
         such  Current  Market Price and of which the  denominator  shall be the
         number of shares of Common Stock  outstanding  at the close of business
         on the Record Date plus the total number of additional shares of Common
         Stock subject to such rights or warrants for  subscription or purchase.
         Such adjustment shall become effective immediately after the opening of
         business on the day following  the Record Date fixed for  determination
         of  stockholders  entitled  to  purchase  or  receive  such  rights  or
         warrants.  To the extent that shares of Common Stock are not  delivered
         pursuant to such rights or warrants, upon the expiration or termination
         of such rights or warrants the Conversion Price shall again be adjusted
         to be the  Conversion  Price  which  would  then be in  effect  had the
         adjustments made upon the issuance of such rights or warrants been made
         on the basis of delivery  of only the number of shares of Common  Stock
         actually  delivered.  If such rights or warrants are not so issued, the
         Conversion  Price shall again be  adjusted to be the  Conversion  Price
         which would then be in effect if such date fixed for the  determination
         of  stockholders  entitled to receive  such rights or warrants  had not
         been fixed. In determining  whether any rights or warrants  entitle the
         holders to  subscribe  for or purchase  Common  Stock at less than such
         Current Market Price,  and in determining the aggregate  offering price
         of such shares of Common  Stock,  there shall be taken into account any
         consideration  received for such rights or warrants,  with the value of
         such  consideration,  if other than cash, to be determined by the Board
         of Directors.

                  (3) If  the  outstanding  shares  of  Common  Stock  shall  be
         subdivided  into a  greater  number of  shares  of  Common  Stock,  the
         Conversion  Price in  effect  at the  opening  of  business  on the day
         following the day upon which such subdivision  becomes  effective shall
         be proportionately reduced, and, conversely,  if the outstanding shares
         of Common  Stock shall be combined  into a smaller  number of shares of
         Common Stock, the Conversion Price in effect at the opening of business
         on the day  following  the day  upon  which  such  combination  becomes
         effective  shall  be  proportionately   increased,  such  reduction  or
         increase, as the case may be, to become effective immediately after the
         opening  of  business  on the day  following  the day upon  which  such
         subdivision or combination becomes effective.


<PAGE>


                                                                            19

                  (4) If the Company shall, by dividend or otherwise, distribute
         to all  holders  of its shares of Common  Stock  shares of any class of
         Capital Stock of the Company (other than any dividends or distributions
         to  which   paragraph   (g)(iv)(1)   applies)  or   evidences   of  its
         indebtedness, cash or other assets (including securities, but excluding
         any rights or warrants of a type  referred to in  paragraph  (g)(iv)(2)
         and excluding  dividends and distributions paid exclusively in cash and
         excluding any Capital Stock, evidences of indebtedness,  cash or assets
         distributed  upon a merger or  consolidation  to which paragraph (g)(v)
         applies) (the foregoing hereinafter in this paragraph (g)(iv)(4) called
         the "Distributed Securities"),  then, in each such case, the Conversion
         Price  shall be  reduced  so that the same  shall be equal to the price
         determined by multiplying  the Conversion  Price in effect  immediately
         prior to the  close of  business  on the  Record  Date (as  defined  in
         paragraph  (g)(iv)(7)) with respect to such  distribution by a fraction
         of which the numerator shall be the Current Market Price (determined as
         provided in paragraph (g)(iv)(7)) of the Common Stock on such date less
         the fair market value (as  determined by the Board of Directors,  whose
         determination  shall be conclusive and described in a resolution of the
         Board of  Directors)  on such date of the  portion  of the  Distributed
         Securities so  distributed  applicable to one share of Common Stock and
         the denominator  shall be such Current Market Price,  such reduction to
         become  effective  immediately  prior to the opening of business on the
         day following the Record Date;  provided,  however,  that, in the event
         the then fair  market  value (as so  determined)  of the portion of the
         Distributed Securities so distributed applicable to one share of Common
         Stock is equal to or  greater  than  the  Current  Market  Price on the
         Record Date, in lieu of the foregoing  adjustment,  adequate  provision
         shall be made so that each holder of Convertible  Preferred Stock shall
         have the right to receive  upon  conversion  of a share of  Convertible
         Preferred  Stock (or any  portion  thereof)  the amount of  Distributed
         Securities  such holder would have  received had such holder  converted
         such  share  of  Convertible   Preferred  Stock  (or  portion  thereof)
         immediately prior to such Record Date. If such dividend or distribution
         is not so paid or made, the Conversion Price shall again be adjusted to
         be the Conversion  Price which would then be in effect if such dividend
         or  distribution  had not been  declared.  If the  Board  of  Directors
         determines  the fair market value of any  distribution  for purposes of
         this


<PAGE>


                                                                             20

         paragraph  (g)(iv)(4) by reference to the actual or when issued trading
         market for any securities  comprising all or part of such distribution,
         it must in doing so  consider  the prices in such  market over the same
         period used in computing the Current Market Price pursuant to paragraph
         (g)(iv)(7) to the extent possible.

         Rights or warrants  distributed by the Company to all holders of Common
         Stock entitling the holders thereof to subscribe for or purchase shares
         of the  Company's  Capital  Stock  (either  initially or under  certain
         circumstances),  which rights or warrants,  until the  occurrence  of a
         specified event or events ("Dilution Trigger Event"): (i) are deemed to
         be transferred with such Common Stock;  (ii) are not  exercisable;  and
         (iii) are also issued in respect of future  issuances of Common  Stock,
         shall be  deemed  not to have been  distributed  for  purposes  of this
         paragraph  (g)(iv)(4) (and no adjustment to the Conversion  Price under
         this paragraph  (g)(iv)(4)  shall be required)  until the occurrence of
         the earliest Dilution Trigger Event, whereupon such rights and warrants
         shall be deemed to have been distributed and an appropriate  adjustment
         to the Conversion Price under this paragraph  (g)(iv)(4) shall be made.
         If any such rights or warrants,  including any such existing  rights or
         warrants   distributed  prior  to  the  date  hereof,  are  subject  to
         subsequent events,  upon the occurrence of each of which such rights or
         warrants  shall become  exercisable to purchase  different  securities,
         evidences of indebtedness or other assets,  then the occurrence of each
         such event shall be deemed to be such date of issuance  and record date
         with respect to new rights or warrants (and a termination or expiration
         of the  existing  rights or  warrants  without  exercise  by the holder
         thereof).  In  addition,  in the event of any  distribution  (or deemed
         distribution) of rights or warrants, or any Dilution Trigger Event with
         respect  thereto,  that was  counted  for  purposes  of  calculating  a
         distribution  amount for which an  adjustment to the  Conversion  Price
         under this  paragraph  (g)(iv)(4) was made, (1) in the case of any such
         rights or warrants  which shall all have been  redeemed or  repurchased
         without exercise by any holders thereof,  the Conversion Price shall be
         readjusted  upon such final  redemption or repurchase to give effect to
         such  distribution  or Dilution  Trigger Event,  as the case may be, as
         though it were a cash  distribution,  equal to the per share redemption
         or  repurchase  price  received by a holder or holders of Common  Stock
         with respect to such rights or


<PAGE>


                                                                            21

         warrants  (assuming  such holder had retained such rights or warrants),
         made to all holders of Common  Stock as of the date of such  redemption
         or  repurchase,  and (2) in the case of such rights or  warrants  which
         shall have expired or been terminated  without  exercise by any holders
         thereof, the Conversion Price shall be readjusted as if such rights and
         warrants had not been issued.

         Notwithstanding any other provision of this paragraph (g)(iv)(4) to the
         contrary,  Capital Stock, rights, warrants,  evidences of indebtedness,
         other   securities,   cash  or  other  assets   (including  any  rights
         distributed  pursuant to any  shareholder  rights plan) shall be deemed
         not to have been distributed for purposes of this paragraph  (g)(iv)(4)
         if the Company makes proper  provision so that each holder of shares of
         Convertible  Preferred  Stock  who  converts  a  share  of  Convertible
         Preferred  Stock (or any  portion  thereof)  after  the date  fixed for
         determination  of  stockholders  entitled to receive such  distribution
         shall be entitled to receive upon such  conversion,  in addition to the
         Common Stock issuable upon such conversion, the amount and kind of such
         distributions  that such holder would have been  entitled to receive if
         such  holder  had,   immediately  prior  to  such  determination  date,
         converted such share of Convertible Preferred Stock into Common Stock.

         For purposes of this paragraph (g)(iv)(4) and paragraphs (g)(iv)(1) and
         (2), any dividend or distribution to which this paragraph (g)(iv)(4) is
         applicable  that also includes  Common Stock,  or rights or warrants to
         subscribe for or purchase  Common Stock to which  paragraph  (g)(iv)(2)
         applies  (or both),  shall be deemed  instead  to be (1) a dividend  or
         distribution of the evidences of indebtedness,  cash, assets, shares of
         Capital Stock,  rights or warrants other than (A) such shares of Common
         Stock or (B) rights or warrants to which paragraph  (g)(iv)(2)  applies
         (and  any  Conversion  Price  reduction   required  by  this  paragraph
         (g)(iv)(4) with respect to such dividend or distribution  shall then be
         made)  immediately  followed by (2) a dividend or  distribution of such
         Common  Stock or such  rights or warrants  (and any further  Conversion
         Price reduction  required by paragraph  (g)(iv)(1) and (2) with respect
         to such dividend or distribution  shall then be made),  except that (1)
         the Record Date of such dividend or  distribution  shall be substituted
         as "the Record Date fixed for the determination of stockholders


<PAGE>


                                                                           22

         entitled to receive such dividend or other distribution",  "Record Date
         fixed for such  determination"  and "Record Date" within the meaning of
         paragraph   (g)(iv)(1)   and  as  "the   Record   Date  fixed  for  the
         determination  of  stockholders  entitled  to  receive  such  rights or
         warrants",  "the date fixed for the  determination  of the stockholders
         entitled to receive  such rights or  warrants"  and "such  Record Date"
         within the meaning of paragraph (g)(iv)(2), and (2) any share of Common
         Stock  included in such  dividend or  distribution  shall not be deemed
         "outstanding  at the  close  of  business  on the date  fixed  for such
         determination" within the meaning of paragraph (g)(iv)(1).

                  (5) If the Company shall, by dividend or otherwise, distribute
         to all  holders of its Common  Stock cash  (excluding  any cash that is
         distributed  upon a merger or  consolidation  to which paragraph (g)(v)
         applies  or  as  part  of  a  distribution  referred  to  in  paragraph
         (g)(iv)(4)) in an aggregate amount that, combined together with (1) the
         aggregate amount of any other such  distributions to all holders of its
         Common Stock made  exclusively  in cash within the 12 months  preceding
         the date of  payment of such  distribution,  and in respect of which no
         adjustment pursuant to this paragraph (g)(iv)(5) has been made, and (2)
         the aggregate of any cash plus the fair market value (as  determined by
         the Board of Directors,  whose  determination  shall be conclusive  and
         described in a resolution of the Board of  Directors) of  consideration
         payable in respect of any tender  offer by the Company or a  Subsidiary
         of the  Company for all or any  portion of the Common  Stock  concluded
         within   the  12  months   preceding   the  date  of  payment  of  such
         distribution,  and in  respect  of  which  no  adjustment  pursuant  to
         paragraph (g)(iv)(4) has been made, exceeds 12.5% of the product of the
         Current Market Price  (determined as provided in paragraph  (g)(iv)(7))
         on the Record Date with respect to such  distribution  times the number
         of shares of Common Stock  outstanding on such date,  then, and in each
         such case,  immediately  after the close of business on such date,  the
         Conversion  Price  shall be reduced  so that the same  shall  equal the
         price   determined  by  multiplying  the  Conversion  Price  in  effect
         immediately  prior to the close of  business  on such  Record Date by a
         fraction  (i) the  numerator  of which  shall  be equal to the  Current
         Market Price on the Record Date less an amount equal to the quotient of
         (x) the excess of such combined amount over such 12.5%


<PAGE>


                                                                           23

         amount divided by (y) the number of shares of Common Stock  outstanding
         on the Record Date and (ii) the  denominator of which shall be equal to
         the Current Market Price on such Record Date; provided,  however, that,
         if the portion of the cash so  distributed  applicable  to one share of
         Common  Stock is equal to or greater  than the Current  Market Price of
         the  Common  Stock  on the  Record  Date,  in  lieu  of  the  foregoing
         adjustment,  adequate  provision  shall be made so that each  holder of
         Convertible  Preferred  Stock  shall  have the  right to  receive  upon
         conversion of a share of  Convertible  Preferred  Stock (or any portion
         thereof)  the amount of cash such holder  would have  received had such
         holder converted such share of Convertible  Preferred Stock (or portion
         thereof)  immediately  prior to such Record Date.  If such  dividend or
         distribution  is not so paid or made, the Conversion  Price shall again
         be adjusted to be the Conversion Price which would then be in effect if
         such dividend or distribution had not been declared.

                  (6) If a tender or  exchange  offer made by the Company or any
         of its  Subsidiaries for all or any portion of the Common Stock expires
         and such  tender or  exchange  offer (as  amended  upon the  expiration
         thereof) requires the payment to stockholders  (based on the acceptance
         (up to any  maximum  specified  in the  terms of the  tender  offer) of
         Purchased  Shares (as  defined  below)) of an  aggregate  consideration
         having a fair market value (as  determined  by the Board of  Directors,
         whose  determination  shall be conclusive and described in a resolution
         of the  Board  of  Directors)  that,  combined  together  with  (1) the
         aggregate of the cash plus the fair market value (as  determined by the
         Board  of  Directors,  whose  determination  shall  be  conclusive  and
         described  in a  resolution  of  the  Board  of  Directors),  as of the
         expiration of such tender offer, of consideration payable in respect of
         any other tender offers by the Company or any of its  Subsidiaries  for
         all or any portion of the Common  Stock  expiring  within the 12 months
         preceding  the  expiration of such tender offer and in respect of which
         no adjustment  pursuant to this paragraph  (g)(iv)(6) has been made and
         (2) the  aggregate  amount of any  distributions  to all holders of the
         Common Stock made  exclusively  in cash within 12 months  preceding the
         expiration  of such tender offer and in respect of which no  adjustment
         pursuant to paragraph  (g)(iv)(5)  has been made,  exceeds 12.5% of the
         product  of  the  Current  Market  Price  (determined  as  provided  in
         paragraph (g)(iv)(7)) as of the last time


<PAGE>


                                                                            24

         (the  "Expiration  Time") tenders could have been made pursuant to such
         tender  offer  (as it may be  amended)  times  the  number of shares of
         Common  Stock  outstanding  (including  any  tendered  shares)  at  the
         Expiration Time, then, and in each such case,  immediately prior to the
         opening of business on the day after the date of the  Expiration  Time,
         the Conversion Price shall be adjusted so that the same shall equal the
         price   determined  by  multiplying  the  Conversion  Price  in  effect
         immediately  prior  to  the  close  of  business  on  the  date  of the
         Expiration  Time by a  fraction  of which  the  numerator  shall be the
         number of shares of Common Stock  outstanding  (including  any tendered
         shares) at the Expiration  Time  multiplied by the Current Market Price
         of the Common Stock on the Trading Day next  succeeding  the Expiration
         Time and the denominator  shall be the sum of (x) the fair market value
         (determined  as aforesaid) of the  aggregate  consideration  payable to
         stockholders  based on the acceptance  (up to any maximum  specified in
         the terms of the tender offer) of all shares  validly  tendered and not
         withdrawn as of the Expiration Time (the shares deemed so accepted,  up
         to any such maximum,  being referred to as the "Purchased  Shares") and
         (y) the  product  of the number of shares of Common  Stock  outstanding
         (less any  Purchased  Shares) at the  Expiration  Time and the  Current
         Market Price of the Common Stock on the Trading Day next succeeding the
         Expiration   Time,   such  reduction  (if  any)  to  become   effective
         immediately  prior to the opening of business on the day  following the
         Expiration  Time.  If the  Company  is  obligated  to  purchase  shares
         pursuant  to any such  tender  offer,  but the  Company is  permanently
         prevented by applicable  law from  effecting any such  purchases or all
         such  purchases  are  rescinded,  the  Conversion  Price shall again be
         adjusted  to be the  Conversion  Price which would then be in effect if
         such  tender  offer  had not  been  made.  If the  application  of this
         paragraph (g)(iv)(6) to any tender offer would result in an increase in
         the Conversion Price, no adjustment shall be made for such tender offer
         under this paragraph (g)(iv)(6).

                  (7) For  purposes of this  paragraph  (g)(iv),  the  following
         terms shall have the meaning indicated:

         "closing  price" with  respect to any  securities  on any day means the
         last sale  price on such day or, if no such  sale  takes  place on such
         day,  the average of the  reported  high bid and low ask prices on such
         day, in each case on the NNM or the New York Stock Exchange, as


<PAGE>


                                                                           25

         applicable,  or, if such  security is not listed or admitted to trading
         on  such  national  market  or  exchange,  on  the  principal  national
         securities  exchange  or  quotation  system on which such  security  is
         quoted or listed or admitted to trading, or, if not quoted or listed or
         admitted to trading on any  national  securities  exchange or quotation
         system, the average of the high bid and low ask prices of such security
         on the  over-the-counter  market on the day in  question as reported by
         the  National  Quotation  Bureau  Incorporated  or a similar  generally
         accepted reporting service, or, if not so available,  in such manner as
         furnished by any New York Stock Exchange member firm selected from time
         to  time  by the  Board  of  Directors  for  that  purpose,  or a price
         determined in good faith by the Board of Directors, whose determination
         shall be  conclusive  and  described  in a  resolution  of the Board of
         Directors.

         "Current  Market Price" means the average of the daily  closing  prices
         per  share  of  Common  Stock  for  the  10  consecutive  Trading  Days
         immediately prior to the date in question;  provided, however, that (A)
         if the "ex" date (as hereinafter defined) for any event (other than the
         issuance or distribution  requiring such  computation) that requires an
         adjustment to the Conversion  Price pursuant to paragraphs  (g)(iv)(1),
         (2),  (3), (4), (5) or (6) occurs  during such 10  consecutive  trading
         days, the closing price for each trading day prior to the "ex" date for
         such other event shall be adjusted by multiplying such closing price by
         the same  fraction by which the  Conversion  Price is so required to be
         adjusted as a result of such other event,  (B) if the "ex" date for any
         event  (other  than  the  issuance  or   distribution   requiring  such
         computation)  that  requires  an  adjustment  to the  Conversion  Price
         pursuant to paragraphs (g)(iv)(1),  (2), (3), (4), (5) or (6) occurs on
         or after the "ex" date for the issuance or distribution  requiring such
         computation  and prior to the day in  question,  the closing  price for
         each  trading day on and after the "ex" date for such other event shall
         be adjusted by multiplying  such closing price by the reciprocal of the
         fraction by which the Conversion Price is so required to be adjusted as
         a result of such other event and (C) if the "ex" date for the  issuance
         or  distribution  requiring  such  computation  is  prior to the day in
         question, after taking into account any adjustment required pursuant to
         clause (A) or (B) of this  proviso,  the closing price for each trading
         day on or after such "ex" date shall be adjusted by adding thereto the


<PAGE>


                                                                           26

         amount  of any cash and the fair  market  value (as  determined  by the
         Board of Directors in a manner  consistent  with any  determination  of
         such  value  for  purposes  of  paragraphs  (g)(iv)(4)  or  (5),  whose
         determination  shall be conclusive and described in a resolution of the
         Board of Directors) of the evidence of indebtedness,  shares of Capital
         Stock or assets being distributed  applicable to one Common Stock as of
         the close of business on the day before such "ex" date. For purposes of
         any computation  under paragraph  (g)(vi),  the Current Market Price on
         any date shall be deemed to be the average of the daily closing  prices
         per  share of  Common  Stock  for such day and the next two  succeeding
         trading days; provided,  however,  that, if the "ex" date for any event
         (other than the tender offer requiring such  computation) that requires
         an adjustment to the Conversion Price pursuant to paragraph (g)(iv)(1),
         (2),  (3), (4), (5) or (6) occurs on or after the  Expiration  Time for
         the tender or exchange offer  requiring such  computation  and prior to
         the day in  question,  the  closing  price for each  trading day on and
         after  the  "ex"  date for  such  other  event  shall  be  adjusted  by
         multiplying  such closing  price by the  reciprocal  of the fraction by
         which the Conversion Price is so required to be adjusted as a result of
         such other event.  For purposes of this  paragraph,  the term "ex" date
         (I) when used with respect to any issuance or  distribution,  means the
         first date on which the Common Stock trades regular way on the relevant
         exchange or in the  relevant  market  from which the closing  price was
         obtained  without the right to receive such  issuance or  distribution,
         (II) when used with respect to any subdivision or combination of Common
         Stock,  means the first date on which the Common Stock  trades  regular
         way on such  exchange  or in such  market  after the time at which such
         subdivision or combination  becomes  effective and (III) when used with
         respect to any tender or  exchange  offer means the first date on which
         the Common Stock trades  regular way on such exchange or in such market
         after the Expiration Time of such offer. Notwithstanding the foregoing,
         whenever successive  adjustments to the Conversion Price are called for
         pursuant to this paragraph  (g)(iv),  such adjustments shall be made to
         the  Current  Market  Price  as  may be  necessary  or  appropriate  to
         effectuate the intent of this paragraph  (g)(iv) and to avoid unjust or
         inequitable  results,  as  determined  in good  faith  by the  Board of
         Directors.



<PAGE>


                                                                          27

         "fair market  value" shall mean the amount which a willing  buyer would
         pay a willing seller in an arm's- length transaction.

         "Record Date" shall mean, with respect to any dividend, distribution or
         other  transaction  or event in which the holders of Common  Stock have
         the right to receive any cash, securities or other property or in which
         the Common Stock (or other  applicable  security)  is exchanged  for or
         converted into any  combination of cash,  securities or other property,
         the date fixed for  determination  of stockholders  entitled to receive
         such cash,  securities or other property (whether such date is fixed by
         the Board of Directors or by statute, contract or otherwise).

                  (8) No  adjustment in the  Conversion  Price shall be required
         unless  such  adjustment  would  require an  increase or decrease of at
         least 1% in such price;  provided,  however, that any adjustments which
         by reason of this  paragraph  (g)(iv)(8)  are not  required  to be made
         shall be  carried  forward  and taken into  account  in any  subsequent
         adjustment. All calculations under this paragraph (g)(iv) shall be made
         by the Company and shall be made to the nearest  cent or to the nearest
         one-hundredth  of a share,  as the case may be. No  adjustment  need be
         made for a change in the par value or no par value of the Common Stock.

                  (9)  Whenever  the  Conversion  Price is  adjusted  as  herein
         provided,  the Company shall  promptly file with the Transfer  Agent an
         Officers'  Certificate  setting forth the  Conversion  Price after such
         adjustment and setting forth a brief  statement of the facts  requiring
         such  adjustment.  Promptly  after  delivery of such  certificate,  the
         Company  shall prepare a notice of such  adjustment  of the  Conversion
         Price setting forth the adjusted Conversion Price and the date on which
         each  adjustment  becomes  effective and shall mail such notice of such
         adjustment  of the  Conversion  Price  to each  holder  of  Convertible
         Preferred Stock at such holder's last address appearing on the register
         of holders  maintained for that purpose within 20 days of the effective
         date of such  adjustment.  Failure to  deliver  such  notice  shall not
         affect the legality or validity of any such adjustment.

                  (10) In any case in which this paragraph (g)(iv) provides that
         an adjustment  shall become effective  immediately  after a Record Date
         for an event, the


<PAGE>


                                                                            28

         Company may defer  until the  occurrence  of such event  issuing to the
         holder of any share of Convertible Preferred Stock converted after such
         Record  Date and before  the  occurrence  of such event the  additional
         Common Stock issuable upon such  conversion by reason of the adjustment
         required by such event over and above the Common  Stock  issuable  upon
         such conversion before giving effect to such adjustment.

                  (11) For  purposes of this  paragraph  (g)(iv),  the number of
         shares of Common Stock at any time outstanding shall not include shares
         held in the treasury of the Company but shall include  shares  issuable
         in respect of scrip certificates  issued in lieu of fractions of Common
         Stock.  The Company shall not pay any dividend or make any distribution
         on Common Stock held in the treasury of the Company.

                  (v) In case  of any  consolidation  of the  Company  with,  or
         merger of the Company into,  any other  corporation,  or in case of any
         merger of another  corporation  into the  Company  (other than a merger
         which does not result in any reclassification,  conversion, exchange or
         cancellation of outstanding shares of Common Stock of the Company),  or
         in case of any  conveyance or transfer of the  properties and assets of
         the Company  substantially as an entirety,  the holder of each share of
         Convertible  Preferred  Stock  then  outstanding  shall  have the right
         thereafter, during the period such Convertible Preferred Stock shall be
         convertible as specified in paragraph  (g)(i), to convert such share of
         Convertible  Preferred Stock only (subject to paragraph  (ix)(1) in the
         case of a Common Stock  Change in Control)  into the kind and amount of
         securities, cash and other property receivable upon such consolidation,
         merger,  conveyance  or transfer by a holder of the number of shares of
         Common  Stock of the  Company  into  which  such  share of  Convertible
         Preferred  Stock might have been  converted  immediately  prior to such
         consolidation,  merger, conveyance or transfer, assuming such holder of
         Common Stock of the Company  failed to exercise his rights of election,
         if any, as to the kind or amount of securities, cash and other property
         receivable  upon such  consolidation,  merger,  conveyance  or transfer
         (provided  that,  if the kind or amount of  securities,  cash and other
         property  receivable  upon such  consolidation,  merger,  conveyance or
         transfer is not the same for each share of Common  Stock of the Company
         in  respect  of which  such  rights  of  election  shall  not have been
         exercised ("nonelecting


<PAGE>


                                                                           29

         share"),  then for the  purpose of this  paragraph  (g)(v) the kind and
         amount of  securities,  cash and other  property  receivable  upon such
         consolidation, merger, conveyance or transfer by each nonelecting share
         shall be deemed to be the kind and amount so receivable  per share by a
         plurality of the nonelecting shares). Such securities shall provide for
         adjustments  which, for events  subsequent to the effective date of the
         triggering  event,  shall be as nearly equivalent as may be practicable
         to the  adjustments  provided for in this paragraph  (g)(v).  The above
         provisions  of  this  Section  shall   similarly  apply  to  successive
         consolidations, mergers, conveyances or transfers.

                  (vi) In case:

                  (1) the  Company  shall  declare  a  dividend  (or  any  other
distribution)  on its Common  Stock  payable  otherwise  than in cash out of its
earned surplus; or

                  (2) the Company shall authorize the granting to all holders of
its Common Stock of rights or warrants to  subscribe  for or purchase any shares
of Capital Stock of any class or of any other rights; or

                  (3) of any reclassification of the Common Stock of the Company
(other than a subdivision or combination of its outstanding Common Stock), or of
any  consolidation  or  merger  to which  the  Company  is a party and for which
approval of any stockholders of the Company is required, or the sale or transfer
of all or substantially all the assets of the Company; or

                  (4) of the voluntary or involuntary  dissolution,  liquidation
or winding up of the Company;

then the  Company  shall cause to be filed with the  Transfer  Agent and at each
office or agency  maintained  for the purpose of conversion  of the  Convertible
Preferred  Stock,  and shall  cause to be mailed to all  holders  at their  last
addresses as they shall appear in the Convertible  Preferred Stock Register,  at
least 20 days (or 10 days in any case  specified  in  clause  (1) or (2)  above)
prior to the applicable  date  hereinafter  specified,  a notice stating (x) the
date  on  which a  record  is to be  taken  for the  purpose  of such  dividend,
distribution,  rights or warrants,  or, if a record is not to be taken, the date
as of which the  holders  of  Common  Stock of  record  to be  entitled  to such
dividend, distribution,  rights or warrants are to be determined or (y) the date
on which such reclassification,


<PAGE>


                                                                            30

consolidation, merger, sale, transfer, dissolution, liquidation or winding up is
expected  to  become  effective,  and the date as of which it is  expected  that
holders of Common  Stock of record  shall be entitled to exchange  their  Common
Stock  for   securities,   cash  or  other   property   deliverable   upon  such
reclassification,    consolidation,   merger,   sale,   transfer,   dissolution,
liquidation or winding up. Failure to give the notice  requested by this Section
or any defect therein shall not affect the legality or validity of any dividend,
distribution,  right, warrant,  reclassification,  consolidation,  merger, sale,
transfer,  dissolution,  liquidation  or  winding  up, or the vote upon any such
action.

                  (vii)  The  Company  shall  at  all  times  reserve  and  keep
available,  free from  preemptive  rights,  out of its  authorized  but unissued
shares of Common Stock (or out of its authorized  shares of Common Stock held in
the treasury of the Company), for the purpose of effecting the conversion of the
Convertible  Preferred  Stock,  the full  number of shares of Common  Stock then
issuable upon the conversion of all outstanding shares of Convertible  Preferred
Stock.

                  (viii) The  Company  will pay any and all  document,  stamp or
similar  issue or transfer  taxes that may be payable in respect of the issue or
delivery  of Common  Stock on  conversion  of the  Convertible  Preferred  Stock
pursuant  hereto.  The Company  shall not,  however,  be required to pay any tax
which may be  payable  in  respect  of any  transfer  involved  in the issue and
delivery  of shares of Common  Stock in a name  other than that of the holder of
the share of Convertible  Preferred Stock or the shares of Convertible Preferred
Stock to be  converted,  and no such issue or delivery  shall be made unless and
until the Person requesting such issue has paid to the Company the amount of any
such tax, or has  established to the  satisfaction  of the Company that such tax
has been paid.

                  (ix) (1)  Notwithstanding any other provision in the preceding
paragraphs to the contrary,  if any Change in Control occurs then the Conversion
Price in effect  shall be adjusted  immediately  after such Change in Control as
described  below. In addition,  in the event of a Common Stock Change in Control
(as defined in this paragraph (g)(ix)),  each share of the Convertible Preferred
Stock shall be  convertible  solely into  common  stock of the kind  received by
holders of Common  Stock as the result of such Common  Stock  Change in Control.
For purposes of calculating any adjustment to be made pursuant to this


<PAGE>


                                                                       31

paragraph in the event of a Change in Control,  immediately after such Change in
Control:

                  (A) in the case of a  Non-Stock  Change in Control (as defined
         in this paragraph (g)(ix)), the Conversion Price shall thereupon become
         the lower of (x) the Conversion  Price in effect  immediately  prior to
         such Non-Stock Change in Control,  but after giving effect to any other
         prior  adjustments,  and (y) the result  obtained  by  multiplying  the
         greater of the Applicable Price (as defined in this paragraph  (g)(ix))
         or the then  applicable  Reference  Market  Price (as  defined  in this
         paragraph (g)(ix)) by a fraction of which the numerator shall be $50.00
         and the denominator shall be the then current Optional Redemption Price
         per share;  or, prior to March 20, 2001, an amount per share determined
         by the  Company  in its sole  discretion,  after  consultation  with an
         investment  banking  firm,  to be the  equivalent  of the  hypothetical
         Optional  Redemption  Price  that  would  have been  applicable  if the
         Convertible Preferred Stock had been redeemable during such period; and


                  (B) in the case of a  Common  Stock  Change  in  Control,  the
         Conversion  Price in  effect  immediately  prior to such  Common  Stock
         Change in Control,  but after giving  effect to any prior  adjustments,
         shall thereupon be adjusted by multiplying  such Conversion  Price by a
         fraction, of which the numerator shall be the Purchaser Stock Price (as
         defined in this  paragraph  (g)(ix)) and the  denominator  shall be the
         Applicable  Price;  provided,  however,  that in the  event of a Common
         Stock  Change  in  Control  in  which  (x)  100%  of the  value  of the
         consideration  received by a holder of Common  Stock is common stock of
         the  successor,  acquiror,  or other third party (and cash,  if any, is
         paid with  respect to any  fractional  interests  in such common  stock
         resulting  from such Common Stock Change in Control) and (y) all of the
         Common Stock will have been exchanged for,  converted into, or acquired
         for,  common stock (and cash with respect to  fractional  interests) of
         the successor,  acquiror or other third party,  the Conversion Price in
         effect  immediately  prior to such Common Stock Change in Control shall
         thereupon  be  adjusted  by  multiplying  such  Conversion  Price  by a
         fraction,  of which the numerator  shall be one (1) and the denominator
         shall be the  number  of  shares  of  common  stock  of the  successor,
         acquiror, or other third party received by a holder of


<PAGE>


                                                                            32

         one share of Common Stock as a result of such Common Stock Change in 
         Control.

                  (3) For purposes of this paragraph  (ix), the following  terms
shall have the meanings indicated:

                  "Applicable  Price"  means  (i) in the  event  of a  Non-Stock
         Change in Control in which the holders of the Common Stock receive only
         cash,  the amount of cash received by the holder of one share of Common
         Stock and (ii) in the event of any other Non-Stock Change in Control or
         any Common  Stock  Change in  Control,  the  average of the closing bid
         prices for the Common  Stock  during the ten Trading  Days prior to and
         including  the  record  date for the  determination  of the  holders of
         Common Stock  entitled to receive cash,  securities,  property or other
         assets in  connection  with such Non- Stock Change in Control or Common
         Stock Change in Control or, if there is no such record  date,  the date
         upon  which the  holders of the  Common  Stock  shall have the right to
         receive such cash, securities,  property or other assets, in each case,
         as adjusted in good faith by the Board of  Directors  to  appropriately
         reflect any of the events referred to in paragraph  (g)(iv)(1)  through
         (6).

                  "Common  Stock Change in Control"  means any Change in Control
         in which more than 50% of the value (as determined in good faith by the
         Board of  Directors of the  Company) of the  consideration  received by
         holders of Common  Stock  consists of common stock that for each of the
         ten consecutive Trading Days referred to in the preceding paragraph has
         been admitted for listing or admitted for listing  subject to notice of
         issuance  on a  national  securities  exchange  or  quoted  on the NNM;
         provided, however, that a Change in Control shall not be a Common Stock
         Change in Control  unless  either (i) the  Company  continues  to exist
         after the  occurrence  of such  Change in Control  and the  outstanding
         shares of Convertible  Preferred Stock continue to exist as outstanding
         shares of  Convertible  Preferred  Stock,  or (ii) not  later  than the
         occurrence  of such  Change  in  Control,  the  outstanding  shares  of
         Convertible  Preferred Stock are converted into or exchanged for shares
         of  convertible  preferred  stock of a  corporation  succeeding  to the
         business of the Company,  which convertible preferred stock has powers,
         preferences and relative, participating,  optional or other rights, and
         qualifications, limitations and restrictions,


<PAGE>


                                                                           33

         substantially similar to those of the Convertible Preferred Stock.

                  "Non-Stock Change in Control" means any Change in
         Control other than a Common Stock Change in Control.

                  "Purchaser  Stock  Price"  means,  with  respect to any Common
         Stock  Change in  Control,  the  product of (i) the number of shares of
         common  stock  received in such Common Stock Change of Control for each
         share of Common  Stock,  and (ii) the average of the per share  closing
         bid prices for the common stock received in such Common Stock Change in
         Control for the ten consecutive Trading Days prior to and including the
         record  date for the  determination  of the  holders  of  Common  Stock
         entitled to receive  such common  stock,  or if there is no such record
         date,  the date upon which the  holders of the Common  Stock shall have
         the right to receive such common  stock,  in each case,  as adjusted in
         good faith by the Board of  Directors to  appropriately  reflect any of
         the events referred to in paragraph  (g)(iv)(1)  through (6); provided,
         however,  that if no such closing bid prices exist,  then the Purchaser
         Stock  Price  shall be set at a price  determined  in good faith by the
         Board of Directors of the Company.

                  "Reference Market Price" shall initially mean $26.46 (which is
         an amount  equal to  66-2/3%  of the  reported  last sale price for the
         Common  Stock on the NNM on March  11,  1998),  and in the event of any
         adjustment to the conversion  prices other than as a result of a Change
         in Control,  the Reference  Market Price shall also be adjusted so that
         the ratio of the Reference  Market Price to the Conversion  Price after
         giving  effect to any such  adjustment  shall always be the same as the
         ratio of $26.46 to the initial  Conversion Price set forth in paragraph
         (g)(i).

                  (x) If, as a result of the  operation of this  paragraph  (g),
the  cumulative  number  of  shares of Common  Stock  issued  or  issuable  upon
conversion  of the  Convertible  Preferred  Stock,  after  giving  effect to the
adjustments  described  in  this  paragraph  (g) and all  prior  conversions  of
Convertible  Preferred  Stock,  would exceed a number (the  "Threshold  Number")
equal to 20% of the  outstanding  shares of Common  Stock as of the Issue  Date,
then  until  and  unless  the  Company   obtains  the  approval  of  its  common
stockholders  for the  issuance  of any shares of Common  Stock in excess of the
Threshold  Number,  the  Conversion  Price  shall be  adjusted  pursuant to this



<PAGE>


                                                                             34

paragraph  (g) to that price  that  would  entitle  the  holders of  Convertible
Preferred  Stock  to  receive  in the  aggregate,  upon  conversion  of all  the
Convertible  Preferred  Stock  (including  all prior  conversions of Convertible
Preferred  Stock),  no more than the Threshold Number of shares of Common Stock.
If, as a result of the  operation of the  preceding  sentence,  the  adjustments
required  by  operation  of  paragraph  (g) in the  Conversion  Price is limited
because  appropriate  stockholder  approval has not been  obtained,  the Company
agrees for the benefit of the Holders of Convertible Preferred Stock to seek, as
promptly  as  reasonably  practicable,  the  requisite  approval  of its  common
stockholders  for the full  adjustment  of the  Conversion  Price as required by
operation of paragraph (g) (without giving effect to the preceding sentence).

                  (h)  Reissuance  of  Convertible  Preferred  Stock.  Shares of
Convertible  Preferred Stock that have been issued and reacquired in any manner,
including  shares  purchased,  redeemed,  converted or  exchanged,  shall not be
reissued as shares of  Convertible  Preferred  Stock and shall (upon  compliance
with any  applicable  provisions  of the laws of  Delaware)  have the  status of
authorized and unissued shares of Preferred Stock  undesignated as to series and
may be  redesignated  and  reissued  as part of any series of  Preferred  Stock;
provided, however, that so long as any shares of Convertible Preferred Stock are
outstanding,  any issuance of such shares must be in  compliance  with the terms
hereof.  Upon any such  reacquisitions,  the  number of  shares  of  Convertible
Preferred Stock authorized pursuant to this Certificate of Designations shall be
reduced by the number of shares so reacquired.

                  (i) Business Day. If any payment, redemption or exchange shall
be required by the terms hereof to be made on a day that is not a Business  Day,
such payment, redemption or exchange shall be made on the immediately succeeding
Business Day.

               (j)  Limitation  on Mergers and Asset Sales.  The Company may not
consolidate  with or merge  with or into,  or convey,  transfer  or lease all or
substantially  all  its  assets  to,  any  person  unless:  (1)  the  successor,
transferee  or lessee (if not the Company) is organized  and existing  under the
laws of the United  States of America or any State  thereof or the  District  of
Columbia  and  the  Convertible  Preferred  Stock  shall  be  converted  into or
exchanged for and shall become shares of such  successor,  transferee or lessee,
having in respect of such successor, transferee or lessee substantially the same
powers, preference and relative participating,  optional or other special rights



<PAGE>


                                                                             35

and  the  qualifications,   limitations  or  restrictions   thereon,   that  the
Convertible  Preferred Stock had immediately prior to such transaction;  and (2)
the Company  delivers to the  Transfer  Agent an  Officers'  Certificate  and an
Opinion of Counsel stating that such consolidation,  merger or transfer complies
with this Certificate of Designations. The successor,  transferee or lessee will
be the successor company.

                  (k)  Certificates.   (i)  Form  and  Dating.  The  Convertible
Preferred Stock and the Transfer Agent's certificate of authentication  shall be
substantially  in the form of  Exhibit A,  which is hereby  incorporated  in and
expressly  made a part of this  Certificate  of  Designations.  The  Convertible
Preferred Stock certificate 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 Convertible  Preferred Stock certificate shall
be dated the date of its authentication.  The terms of the Convertible Preferred
Stock  certificate  set  forth  in  Exhibit  A are  part  of the  terms  of this
Certificate of Designations.

                  (A)  Global  Convertible   Preferred  Stock.  The  Convertible
Preferred  Stock  shall be  issued  initially  in the form of one or more  fully
registered global  certificates with the global securities legend and restricted
securities  legend  set  forth in  Exhibit  A hereto  (the  "Global  Convertible
Preferred  Stock"),  which  shall  be  deposited  on  behalf  of the  purchasers
represented  thereby  with  the  Transfer  Agent,  at its New  York  office,  as
custodian  for DTC (or with such other  custodian as DTC may direct),  and regis
tered in the name of DTC or a nominee of DTC,  duly  executed by the Company and
authenticated  by the  Transfer  Agent as  hereinafter  provided.  The number of
shares  of  Convertible   Preferred  Stock  represented  by  Global  Convertible
Preferred  Stock may from time to time be increased or decreased by  adjustments
made on the records of the Transfer  Agent and DTC or its nominee as hereinafter
provided.  With respect to shares of  Convertible  Preferred  Stock that are not
"restricted  securities" as defined in Rule 144 on a record date for the payment
of  dividends  or on a  conversion  date,  all shares of Dividend  Common  Stock
distributed on the related  Dividend  Payment Date in payment of dividends or on
such conversion date will be freely  transferable  without restriction under the
Securities Act (other than by affiliates),  and such shares will be eligible for
receipt in global form through the facilities of DTC.



<PAGE>


                                                                             36

                  (B)  Book-Entry  Provisions.  In the event Global  Convertible
Preferred Stock is deposited with or on behalf of DTC, the Company shall execute
and the Transfer  Agent shall  authenticate  and deliver  initially  one or more
Global Convertible  Preferred Stock certificates that (a) shall be registered in
the name of DTC for such Global  Convertible  Preferred  Stock or the nominee of
DTC and (b) shall be delivered by the Transfer Agent to DTC or pursuant to DTC's
instructions or held by the Transfer Agent as custodian for DTC.

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

                  (C) Certificated  Convertible  Preferred  Stock;  Certificated
Dividend Common Stock;  Certificated Conversion Common Stock. Except as provided
in  this  paragraph  (k)(i)  or in  paragraph  (k)(iii),  owners  of  beneficial
interests in Global Convertible  Preferred Stock will not be entitled to receive
physical   delivery  of  Convertible   Preferred   Stock  in  fully   registered
certificated form ("Certificated  Convertible Preferred Stock"). With respect to
shares of  Convertible  Preferred  Stock  that are  "restricted  securities"  as
defined  in Rule  144 on a record  date for the  payment  of  dividends  or on a
conversion  date,  all such shares of Dividend  Common Stock  distributed on the
related  Dividend  Payment  Date in  payment  of  dividends  on the  Convertible
Preferred  Stock or all such shares of Conversion  Common Stock issuable on such
conversion  date  will  be  issued  in  fully   registered   certificated   form
("Certificated Dividend Common Stock" or "Certificated Conversion Common Stock",
and  collectively,  "Certificated  Common Stock").  Certificates of Certificated
Common  Stock will be mailed or made  available  at the  office of the  Transfer
Agent  for  the  Convertible  Preferred  Stock  on  or  as  soon  as  reasonably
practicable


<PAGE>


                                                                            37

after the relevant Dividend Payment Date or the conversion date, as the case may
be, to those Persons who are Holders of Convertible Preferred Stock shown on the
records of DTC at the close of business on the relevant record date (in the case
of Certificated  Dividend Common Stock) or to the converting holder (in the case
of Certificated Conversion Common Stock).

                  After  a  transfer  of  any  Convertible  Preferred  Stock  or
Certificated  Common  Stock  during the period of the  effectiveness  of a Shelf
Registration  Statement with respect to such Convertible Preferred Stock or such
Certificated  Common  Stock,  all  requirements  pertaining  to  legends on such
Convertible  Preferred Stock (including Global  Convertible  Preferred Stock) or
Certificated  Common Stock will cease to apply, the requirements  requiring that
any such  Convertible  Preferred  Stock or  Certificated  Common Stock issued to
Holders  be issued in global  form or that any such  Certificated  Common  Stock
issued to Holders be issued in certificated form, as the case may, will cease to
apply,  and Convertible  Preferred Stock or Common Stock, as the case may be, in
global or fully  registered  certificated  form, in either case without legends,
will be available to the transferee of the Holder of such Convertible  Preferred
Stock or Certificated  Common Stock upon exchange of such transferring  Holder's
Convertible  Preferred  Stock or Common  Stock or  directions  to transfer  such
Holder's interest in the Global Convertible Preferred Stock, as applicable.

                  (ii) Execution and Authentication. Two Officers shall sign the
Convertible  Preferred Stock  certificate for the Company by manual or facsimile
signature.  The  Company's  seal  shall  be  impressed,  affixed,  imprinted  or
reproduced  on  the  Convertible  Preferred  Stock  certificate  and  may  be in
facsimile form.

                  If an Officer  whose  signature  is on  Convertible  Preferred
Stock  certificate  no longer holds that office at the time the  Transfer  Agent
authenticates  the  Convertible  Preferred  Stock  certificate,  the Convertible
Preferred Stock certificate shall be valid nevertheless.

                  A Convertible  Preferred Stock  certificate shall not be valid
until  an  authorized  signatory  of  the  Transfer  Agent  manually  signs  the
certificate of  authentication on the Convertible  Preferred Stock  certificate.
The signature shall be conclusive evidence that the Convertible  Preferred Stock
certificate has been authenticated under this Certificate of Designations.



<PAGE>


                                                                            38

                  The Transfer Agent shall authenticate and deliver certificates
for 4,000,000  shares of Convertible  Preferred  Stock for original issue 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  number  of  shares  of  Convertible  Preferred  Stock to be
authenticated and the date on which the original issue of Convertible  Preferred
Stock is to be authenticated.

                  The  Transfer  Agent  may  appoint  an  authenticating   agent
reasonably  acceptable  to the  Company to  authenticate  the  certificates  for
Convertible Preferred Stock. Unless limited by the terms of such appointment, an
authenticating  agent may authenticate  certificates  for Convertible  Preferred
Stock whenever the Transfer Agent may do so. Each reference in this  Certificate
of Designations to authentication by the Transfer Agent includes  authentication
by such agent. An authenticating agent has the same rights as the Transfer Agent
or agent for service of notices and demands.

                  (iii)  Transfer  and  Exchange.  (A)  Transfer and Exchange of
Certificated   Convertible   Preferred  Stock.  When  Certificated   Convertible
Preferred  Stock is presented  to the Transfer  Agent with a request to register
the transfer of such  Certificated  Convertible  Preferred  Stock or to exchange
such Certificated  Convertible  Preferred Stock for an equal number of shares of
Certificated Convertible Preferred Stock of other authorized denominations,  the
Transfer  Agent shall register the transfer or make the exchange as requested if
its reasonable  requirements  for such transaction are met;  provided,  however,
that the Certificated  Convertible  Preferred Stock  surrendered for transfer or
exchange:

                  (1)  shall  be  duly  endorsed  or  accompanied  by a  written
         instrument of transfer in form  reasonably  satisfactory to the Company
         and the  Transfer  Agent,  duly  executed by the Holder  thereof or its
         attorney duly authorized in writing; and

                  (2) is being transferred or exchanged pursuant to an effective
         registration  statement  under the Securities Act or pursuant to clause
         (I) or (II)  below,  and is  accompanied  by the  following  additional
         information and documents, as applicable:

                           (I) if such Certificated  Convertible Preferred Stock
                  is being  delivered  to the  Transfer  Agent  by a Holder  for
                  registration in the name of


<PAGE>


                                                                           39

                  such  Holder,  without  transfer,  a  certification  from such
                  Holder to that effect in  substantially  the form of Exhibit C
                  hereto; or

                           (II) if such Certificated Convertible Preferred Stock
                  is  being  transferred  to  the  Company  or  to a  "qualified
                  institutional  buyer"  ("QIB")  in  accordance  with Rule 144A
                  under the  Securities  Act or  pursuant to an  exemption  from
                  registration in accordance with Rule 144 or Regulation S under
                  the  Securities  Act, (i) a  certification  to that effect (in
                  substantially the form of Exhibit C hereto and, if applicable,
                  Exhibit D hereto)  and (ii) if the  Company  so  requests,  an
                  Opinion of Counsel or other evidence  reasonably  satisfactory
                  to it as to the compliance with the  restrictions set forth in
                  the legend set forth in paragraph (k)(iii)(G).


                  (B)  Restrictions  on  Transfer  of  Certificated  Convertible
Preferred Stock for a Beneficial Interest in Global Convertible Preferred Stock.
Certificated  Convertible  Preferred Stock may not be exchanged for a beneficial
interest in Global  Convertible  Preferred Stock except upon satisfaction of the
requirements set forth below. Upon receipt by the Transfer Agent of Certificated
Convertible  Preferred  Stock,  duly  endorsed  or  accompanied  by  appropriate
instruments of transfer, in form reasonably  satisfactory to the Company and the
Transfer Agent, together with written instructions  directing the Transfer Agent
to make,  or to direct DTC to make,  an adjustment on its books and records with
respect to such Global Convertible Preferred Stock to reflect an increase in the
number  of shares of  Convertible  Preferred  Stock  represented  by the  Global
Convertible   Preferred  Stock,  then  the  Transfer  Agent  shall  cancel  such
Certificated  Convertible  Preferred Stock and cause, or direct DTC to cause, in
accordance with the standing  instructions  and procedures  existing between DTC
and the Transfer  Agent,  the number of shares of  Convertible  Preferred  Stock
represented  by  the  Global   Convertible   Preferred  Stock  to  be  increased
accordingly.  If no Global Convertible Preferred Stock is then outstanding,  the
Company  shall issue and the  Transfer  Agent shall  authenticate,  upon written
order of the  Company  in the form of an  Officers'  Certificate,  a new  Global
Convertible Preferred Stock representing the appropriate number of shares.

                  (C)  Transfer and Exchange of Global Convertible Preferred 
Stock.  The transfer and exchange of Global


<PAGE>


                                                                             40

Convertible  Preferred Stock or beneficial  interests  therein shall be effected
through DTC, in accordance  with this  Certificate  of  Designations  (including
applicable restrictions on transfer set forth herein, if any) and the
procedures of DTC therefor.

                  (D)  Transfer of a Beneficial Interest in Global Convertible 
Preferred Stock for a Certificated Convertible Preferred Stock.

                  (1) Any person  having a  beneficial  interest in  Convertible
         Preferred Stock that is being  transferred or exchanged  pursuant to an
         effective  registration  statement under the Securities Act or pursuant
         to an exemption from  registration in accordance with Rule 144 may upon
         request, and if accompanied by a certification from such person to that
         effect (in substantially  the form of Exhibit C hereto),  exchange such
         beneficial  interest  for  Certificated   Convertible  Preferred  Stock
         representing the same number of shares of Convertible  Preferred Stock.
         Upon  receipt by the  Transfer  Agent of written  instructions  or such
         other  form of  instructions  as is  customary  for DTC from DTC or its
         nominee on behalf of any person having a beneficial  interest in Global
         Convertible Preferred Stock and upon receipt by the Transfer Agent of a
         written  order or such other form of  instructions  as is customary for
         DTC or  the  person  designated  by DTC  as  having  such a  beneficial
         interest in a Transfer  Restricted  Security  only,  then, the Transfer
         Agent or DTC, at the direction of the Transfer  Agent,  will cause,  in
         accordance  with the  standing  instructions  and  procedures  existing
         between DTC and the Transfer Agent, the number of shares of Convertible
         Preferred Stock represented by Global Convertible Preferred Stock to be
         reduced on its books and records and,  following  such  reduction,  the
         Company  will  execute and the  Transfer  Agent will  authenticate  and
         deliver to the transferee Certificated Convertible Preferred Stock.

                  (2)  Certificated   Convertible   Preferred  Stock  issued  in
         exchange for a beneficial  interest in a Global  Convertible  Preferred
         Stock  pursuant to this  paragraph  (k)(iii)(D)  shall be registered in
         such names and in such  authorized  denominations  as DTC,  pursuant to
         instructions  from its direct or indirect  participants  or  otherwise,
         shall  instruct the Transfer  Agent.  The Transfer  Agent shall deliver
         such


<PAGE>


                                                                             41

         Certificated  Convertible Preferred Stock to the persons in whose names
         such  Convertible  Preferred Stock are so registered in accordance with
         the instructions of DTC.

                  (E)  Restrictions on Transfer and Exchange of Global 
Convertible Preferred Stock.

                  (1)  Notwithstanding  any other provisions of this Certificate
         of  Designations  (other  than the  provisions  set forth in  paragraph
         (k)(iii)(F)), Global Convertible Preferred Stock may not be transferred
         as a whole  except 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 depository or a nominee of such successor depository.

                  (2) In the event that the Global  Convertible  Preferred Stock
         is exchanged for Convertible  Preferred Stock in definitive  registered
         form pursuant to paragraph  (k)(iii)(F) prior to the effectiveness of a
         Shelf  Registration  Statement  with respect to such  Securities,  such
         Convertible  Preferred  Stock may be exchanged only in accordance  with
         such procedures as are substantially  consistent with the provisions of
         this paragraph (k)(iii)  (including the certification  requirements set
         forth in the Exhibits to this  Certificate of Designations  intended to
         ensure that such transfers comply with Rule 144A,  Regulation S or such
         other applicable  exemption from registration under the Securities Act,
         as the case may be) and such other  procedures as may from time to time
         be adopted by the Company.

                  (F)  Authentication of Certificated Convertible Preferred 
Stock.  If at any time:

                  (1) DTC  notifies  the Company that DTC is unwilling or unable
         to continue as depository for the Global  Convertible  Preferred  Stock
         and a successor  depository for the Global Convertible  Preferred Stock
         is not appointed by the Company  within 90 days after  delivery of such
         notice;

                  (2) DTC ceases to be a clearing agency registered
         under the Exchange Act;

                  (3) there shall have occurred and be continuing a
         Voting Rights Triggering Event; or



<PAGE>


                                                                            42

                  (4) the Company, in its sole discretion, notifies the Transfer
         Agent in writing that it elects to cause the  issuance of  Certificated
         Convertible Preferred Stock under this Certificate of Designations,

then the Company will execute, and the Transfer Agent, upon receipt of a written
order of the Company  signed by two  Officers or by an Officer and an  Assistant
Treasurer  of  the  Company   requesting  the  authentication  and  delivery  of
Certificated  Convertible  Preferred  Stock  to the  persons  designated  by the
Company, will authenticate and deliver Certificated  Convertible Preferred Stock
equal to the number of shares of Convertible  Preferred Stock represented by the
Global  Convertible  Preferred  Stock,  in exchange for such Global  Convertible
Preferred Stock.

                  (G) Legend. (1) Except as permitted by the following paragraph
(2)  and  in  paragraph  (k)(i)(c),   each  certificate  evidencing  the  Global
Convertible  Preferred Stock, the Certificated  Convertible  Preferred Stock and
Certificated Common Stock shall bear a legend in substantially the following 
form:

         "THE SECURITY  EVIDENCED HEREBY (OR ITS  PREDECESSOR)  [(AND THE COMMON
         STOCK INTO WHICH THIS SECURITY IS CONVERTIBLE)]  WAS ORIGINALLY  ISSUED
         IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER SECTION 5 OF THE UNITED
         STATES  SECURITIES  ACT OF 1933 (THE  "SECURITIES  ACT") AND MAY NOT BE
         OFFERED,  SOLD,  PLEDGED OR  OTHERWISE  TRANSFERRED  IN ABSENCE OF SUCH
         REGISTRATION OR AN APPLICABLE EXEMPTION  THEREFROM.  [EACH PURCHASER OF
         THE  SECURITY  EVIDENCED  HEREBY (OR THE  COMMON  STOCK INTO WHICH THIS
         SECURITY  IS  CONVERTIBLE)  IS HEREBY  NOTIFIED  THAT THE SELLER MAY BE
         RELYING  ON THE  EXEMPTION  FROM THE  PROVISIONS  OF  SECTION  5 OF THE
         SECURITIES  ACT  PROVIDED BY RULE 144A  THEREUNDER.]  THE HOLDER OF THE
         SECURITY  EVIDENCED  HEREBY  [(AND OF THE COMMON  STOCK INTO WHICH THIS
         SECURITY IN  CONVERTIBLE)]  AGREES FOR THE BENEFIT OF THE COMPANY  THAT
         (A) SUCH  SECURITY  [(AND THE COMMON STOCK INTO WHICH THIS  SECURITY IS
         CONVERTIBLE)] MAY BE RESOLD, PLEDGED OR OTHERWISE


<PAGE>


                                                                             43

         TRANSFERRED,  ONLY (1) [TO A PERSON WHO THE SELLER REASONABLY  BELIEVES
         IS A  QUALIFIED  INSTITUTIONAL  BUYER  WITHIN THE  MEANING OF RULE 144A
         UNDER THE  SECURITIES  ACT  PURCHASING  FOR ITS OWN  ACCOUNT OR FOR THE
         ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION MEETING THE
         REQUIREMENTS  OF RULE 144A,] (2) IN AN OFFSHORE  TRANSACTION  COMPLYING
         WITH RULE 904 OF REGULATION S UNDER THE SECURITIES ACT, (3) PURSUANT TO
         AN EXEMPTION  FROM  REGISTRATION  UNDER THE  SECURITIES ACT PROVIDED BY
         RULE 144 THEREUNDER (IF AVAILABLE),  (4) TO THE COMPANY OR (5) PURSUANT
         TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND (B)
         IN ACCORDANCE WITH ALL APPLICABLE  SECURITIES LAWS OF THE STATES OF THE
         UNITED STATES." */

                  (2)  Upon  any  sale  or  transfer  of a  Transfer  Restricted
Security  (including  any Transfer  Restricted  Security  represented  by Global
Convertible Preferred Stock) pursuant to Rule 144 under the Securities Act or an
effective registration statement under the Securities Act:

                           (I) in the case of any Transfer  Restricted  Security
                  that  is  a  Certificated  Convertible  Preferred  Stock,  the
                  Transfer  Agent  shall  permit the Holder  thereof to exchange
                  such Transfer Restricted Security for Certificated Convertible
                  Preferred  Stock that does not bear the legend set forth above
                  and rescind any  restriction  on the transfer of such Transfer
                  Restricted Security; and

                           (II) in the case of any Transfer  Restricted Security
                  that is represented by a Global  Convertible  Preferred Stock,
                  the Transfer Agent shall permit the Holder thereof to exchange
                  such Transfer Restricted Security for Certificated Convertible
                  Preferred  Stock that does not bear the legend set forth above
                  and rescind any  restriction  on the transfer of such Transfer
                  Restricted Security, if the Holder's request for such exchange
                  was made in reliance on Rule 144 and the Holder  certifies  to
                  that   effect  in  writing  to  the   Transfer   Agent   (such
                  certification  to be in  the  form  set  forth  in  Exhibit  C
                  hereto).


_______________________________
 * Brackets indicate legend for shares of Convertible Preferred Stock only.



<PAGE>


                                                                            44

                  (H) Cancellation or Adjustment of Global Convertible Preferred
Stock. At such time as all beneficial interests in Global Convertible  Preferred
Stock have either been exchanged for Certificated  Convertible  Preferred Stock,
redeemed, repurchased or canceled, such Global Convertible Preferred Stock shall
be returned to DTC for  cancellation  or retained  and  canceled by the Transfer
Agent.  At any time prior to such  cancellation,  if any beneficial  interest in
Global  Convertible  Preferred Stock is exchanged for  Certificated  Convertible
Preferred  Stock,  redeemed,  repurchased  or canceled,  the number of shares of
Convertible  Preferred Stock  represented by such Global  Convertible  Preferred
Stock shall be reduced and an adjustment  shall be made on the books and records
of the Transfer Agent with respect to such Global  Convertible  Preferred Stock,
by the Transfer Agent or DTC, to reflect such reduction.

                  (I)  Obligations  with Respect to Transfers  and  Exchanges of
Convertible  Preferred  Stock.  (1) To permit  registrations  of  transfers  and
exchanges,  the Company shall execute and the Transfer Agent shall  authenticate
Certificated  Convertible Preferred Stock and Global Convertible Preferred Stock
as required pursuant to the provisions of this paragraph (k)(iii).

                  (2) All  Certificated  Convertible  Preferred Stock and Global
         Convertible Preferred Stock issued upon any registration of transfer or
         exchange  of  Certificated   Convertible   Preferred  Stock  or  Global
         Convertible  Preferred  Stock  shall be the  valid  obligations  of the
         Company,  entitled  to the same  benefits  under  this  Certificate  of
         Designations as the Certificated  Convertible Preferred Stock or Global
         Convertible  Preferred  Stock  surrendered  upon such  registration  of
         transfer or exchange.

                  (3) Prior to due presentment  for  registration of transfer of
         any shares of Convertible  Preferred  Stock, the Transfer Agent and the
         Company  may deem and treat the  person  in whose  name such  shares of
         Convertible  Preferred  Stock are  registered as the absolute  owner of
         such Convertible Preferred Stock and neither the Transfer Agent nor the
         Company shall be affected by notice to the contrary.

                  (4) No  service  charge  shall  be  made to a  Holder  for any
         registration  of transfer or exchange upon surrender of any Convertible
         Preferred Stock  Certificate or Common Stock  Certificate at the office
         of the Transfer Agent maintained for that purpose.


<PAGE>


                                                                         45

         However,  the Company may require  payment of a sum sufficient to cover
         any tax or other governmental  charge that may be imposed in connection
         with any registration of transfer or exchange of Convertible  Preferred
         Stock certificates or Common Stock certificate.

                  (5)  Upon  any  sale or  transfer  of  shares  of  Convertible
         Preferred Stock (including any Convertible  Preferred Stock represented
         by a Global Convertible Preferred Stock Certificate) or of Certificated
         Common Stock pursuant to an effective  registration statement under the
         Securities  Act,  pursuant  to Rule 144  under  the  Securities  Act or
         pursuant  to an  opinion  of  counsel  reasonably  satisfactory  to the
         Company that no legend is required:

                    (A)  in the case of any Certificated  Convertible  Preferred
                         Stock or Certificated Common Stock, the Company and the
                         Transfer  Agent  shall  permit  the  holder  thereof to
                         exchange   such   Convertible    Preferred   Stock   or
                         Certificated Common Stock for Certificated  Convertible
                         Preferred  Stock or  Certificated  Common Stock, as the
                         case may be, that does not bear the legend set forth in
                         paragraph (iii)(G) above and rescind any restriction on
                         the  transfer of such  Convertible  Preferred  Stock or
                         Dividend  Common  Stock  or  Conversion   Common  Stock
                         issuable in respect thereof; and

                    (B)  in the case of any Global Convertible  Preferred Stock,
                         such Convertible  Preferred Stock shall not be required
                         to bear the  legend  set  forth in  paragraph  (iii)(G)
                         above  but  shall   continue   to  be  subject  to  the
                         provisions  of  paragraph  (iii)(D)  hereof;  provided,
                         however,  that  with  respect  to  any  request  for an
                         exchange  of  Convertible   Preferred   Stock  that  is
                         represented by Global  Convertible  Preferred Stock for
                         Certificated  Convertible Preferred Stock that does not
                         bear the legend set forth in paragraph  (iii)(G)  above
                         in connection with a sale or transfer  thereof pursuant
                         to Rule 144 (and  based  upon an  opinion of counsel if
                         the  Company so  requests),  the Holder  thereof  shall
                         certify  in  writing  to the  Transfer  Agent that such
                         request  is  being  made  pursuant  to Rule  144  (such
                         certification to


<PAGE>


                                                                             46

                         be   substantially in the form of Exhibit C hereto).

                  (J)  No Obligation of the Transfer Agent.

                  (i)  The  Transfer  Agent  shall  have  no  responsibility  or
         obligation  to any  beneficial  owner of Global  Convertible  Preferred
         Stock,  a member of, or a  participant  in DTC or any other Person with
         respect to the  accuracy of the records of DTC or its nominee or of any
         participant or member thereof,  with respect to any ownership  interest
         in the  Convertible  Preferred Stock or with respect to the delivery to
         any participant,  member,  beneficial owner or other Person (other than
         DTC) of any notice  (including  any notice of redemption or repurchase)
         or the  payment of any  amount,  under or with  respect to such  Global
         Convertible Preferred Stock. All notices and communications to be given
         to the  Holders  and  all  payments  to be made to  Holders  under  the
         Convertible  Preferred  Stock  shall  be  given  or  made  only  to the
         registered  Holders  (which  shall be DTC or its nominee in the case of
         the Global  Convertible  Preferred  Stock).  The  rights of  beneficial
         owners in any Global  Convertible  Preferred  Stock shall be  exercised
         only through DTC subject to the applicable rules and procedures of DTC.
         The  Transfer  Agent may rely and shall be fully  protected  in relying
         upon  information  furnished  by DTC  with  respect  to its  mem  bers,
         participants and any beneficial owners.

                  (ii) The Transfer  Agent shall have no  obligation  or duty to
         monitor, determine or inquire as to compliance with any restrictions on
         transfer  imposed  under  this  Certificate  of  Designations  or under
         applicable  law with  respect to any  transfer  of any  interest in any
         Convertible  Preferred Stock (including any transfers  between or among
         DTC   participants,   members  or  beneficial   owners  in  any  Global
         Convertible  Preferred  Stock)  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  Certificate  of  Designations,  and to  examine  the  same to
         determine   substantial   compliance   as  to  form  with  the  express
         requirements hereof.


          (iv) Replacement  Certificates.  If a mutilated  Convertible Preferred
Stock  certificate  is  surrendered  to the Transfer Agent or if the Holder of a



<PAGE>


                                                                             47

Preferred   Stock   certificate   claims   that   the   Convertible    Preferred
StockConvertible  certificate has been lost,  destroyed or wrongfully taken, the
Company  shall issue and the  Transfer  Agent shall  countersign  a  replacement
Convertible  Preferred Stock  certificate if the reasonable  requirements of the
Transfer Agent and of Section 8-405 of the Uniform  Commercial Code as in effect
in the  State of New York are met.  If  required  by the  Transfer  Agent or the
Company,  such Holder shall furnish an indemnity bond sufficient in the judgment
of the Company and the  Transfer  Agent to protect the Company and the  Transfer
Agent from any loss which either of them may suffer if a  Convertible  Preferred
Stock certificate is replaced. The Company and the Transfer Agent may charge the
Holder  for  their   expenses  in  replacing  a  Convertible   Preferred   Stock
certificate.

                  (v)  Temporary  Certificates.   Until  definitive  Convertible
Preferred Stock certificates are ready for delivery, the Company may prepare and
the Transfer  Agent shall  countersign  temporary  Convertible  Preferred  Stock
certificates.  Temporary  Convertible  Preferred  Stock  certificates  shall  be
substantially in the form of definitive Convertible Preferred Stock certificates
but may have  variations  that the Company  considers  appropriate for temporary
Convertible  Preferred  Stock  certificates.  Without  unreasonable  delay,  the
Company  shall  prepare  and the  Transfer  Agent shall  countersign  definitive
Convertible  Preferred  Stock  certificates  and deliver  them in  exchange  for
temporary Convertible Preferred Stock certificates.

                  (vi) Cancellation. (A) In the event the Company shall purchase
or otherwise acquire  Certificated  Convertible  Preferred Stock, the same shall
thereupon be delivered to the Transfer Agent for cancellation.

                  (B)  At  such  time  as all  beneficial  interests  in  Global
Convertible   Preferred  Stock  have  either  been  exchanged  for  Certificated
Convertible  Preferred  Stock,  redeemed,  repurchased or canceled,  such Global
Convertible Preferred Stock shall thereupon be delivered to the Transfer
Agent for cancellation.

                  (C) The  Transfer  Agent  and no one  else  shall  cancel  and
destroy all Convertible  Preferred Stock certificates  surrendered for transfer,
exchange,  replacement  or  cancellation  and  deliver  a  certificate  of  such
destruction  to the Company  unless the Company  directs the  Transfer  Agent to
deliver canceled  Convertible  Preferred Stock certificates to the Company.  The
Company may not issue new Convertible Preferred Stock certificates to replace


<PAGE>


                                                                            48

Convertible Preferred Stock certificates to the extent they evidence Convertible
Preferred Stock which the Company has purchased or otherwise acquired.

                  (l)  Additional  Rights of Holders.  In addition to the rights
provided to Holders under this Certificate of  Designations,  Holders shall have
the rights set forth in the Registration Rights Agreement.

                  (m)  Certain  Definitions.  As  used in  this  Certificate  of
Designations,  the following  terms shall have the  following  meanings (and (1)
terms defined in the singular have  comparable  meanings when used in the plural
and vice versa, (2) "including" means including without limitation,  (3) "or" is
not exclusive and (4) an accounting  term not otherwise  defined has the meaning
assigned to it in accordance with United States  generally  accepted  accounting
principles as in effect on the Issue Date and all accounting  calculations  will
be determined in accordance with such principles),  unless the content otherwise
requires:

                  "Average Life" means,  as of the date of determina  tion, with
respect to any Preferred Stock, the quotient obtained by dividing (i) the sum of
the products of the numbers of years from the date of determination to the dates
of each successive  redemption or similar payment with respect to such Preferred
Stock  multiplied  by the  amount  of such  payment  by (ii) the sum of all such
payments.

                  "Business Day" means each day which is not a Legal
Holiday.

                  "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 Issue Date, including all Common Stock and Preferred Stock.

                  "Change in  Control"  or "Change of  Control"  means:  (i) the
sale, lease, transfer, conveyance other disposition (other than by way of merger
or  consolidation),  in one  or a  series  of  related  transactions,  of all or
substantially  all the assets of the  Company  and its  Subsidiaries  taken as a
whole to any "person" (as such term is used in Section  13(d)(3) of the Exchange
Act),  (ii) the adoption of a plan relating to the liquidation or dissolution of
the Company, (iii) the consummation of any transaction


<PAGE>


                                                                            49

(including any merger or consolidation) the result of which is that any "person"
(as  defined  above),  other  than  certain  present  officers,   directors  and
stockholders of the Company and their affiliates on the date of this Certificate
of Designations,  becomes the beneficial owner (as determined in accordance with
Rules 13d-3 and 13d-5 under the Exchange Act except that a person will be deemed
to have  beneficial  ownership  of all shares  that such person has the right to
acquire, whether such right is exercisable immediately or only after the passage
of time),  directly or  indirectly,  of more than 50% of the voting stock of the
Company or (iv) the first day on which a majority of the members of the board of
directors  (excluding the directors  elected  pursuant to paragraph (f)) are not
Continuing Directors.

                  "Common Stock" means the Company's common stock, par value 
$0.01 per share.

                  "Continuing Directors" means, as of any date of determination,
individuals who on the Issue 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  Issue  Date or whose
election or nomination for election was previously so approved).

                  "Dividend  Period" means each period  between two  consecutive
Dividend  Payment Dates and the period from the Issue Date to the first Dividend
Payment Date.

                  "DTC" or "Depository" means The Depository Trust Company.

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

                  "Holders"  means the  registered  holders from time to time of
the Convertible Preferred Stock.

                  "Issue Date" means the date on which the Convertible Preferred
Stock is initially issued.

                  "Legal  Holiday" means a Saturday,  a Sunday or a day on which
banking institutions are not required to be open in the State of New York.

                  "NNM" means The Nasdaq National Market.



<PAGE>


                                                                             50

                  "Officer"  means the Chairman of the Board of  Directors,  the
President,  any Vice  President,  the Treasurer,  the Secretary or any Assistant
Secretary of the Company.

                  "Officers' Certificate" means a certificate signed by two 
Officers.

                  "Opinion  of  Counsel"  means a  written  opinion  from  legal
counsel who is acceptable to the Transfer Agent.  The counsel may be an employee
of or counsel to the Company or the Transfer Agent.

                  "person"  or  "Person"  means  any  individual,   corporation,
partnership, joint venture, limited liability company, 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 all series and
classes of such preferred or preference stock.

                  "Registration  Rights Agreement" means the Registration Rights
Agreement  dated March 12, 1998 among the  Company,  Credit  Suisse First Boston
Corporation,   Smith  Barney  Inc.,  Morgan  Stanley  &  Co.   Incorporated  and
NationsBanc Montgomery Securities LLC with respect to the Convertible Preferred
Stock.

                  "SEC" or "Commission" means the Securities and Exchange 
Commission.

                  "Securities Act" means the Securities Act of 1933.

                  "Shelf  Registration  Statement"  means a  shelf  registration
statement filed with the SEC to cover resales of Transfer Restricted  Securities
by holders thereof, as required by the Registration Rights Agreement.

                  "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 shares of  outstanding  Voting  Stock is owned,
directly or indirectly,  by such Person,  or one or more other  Subsidiaries  of
such Person.



<PAGE>


                                                                             51

                  "Transfer  Agent" means the transfer agent for the Convertible
Preferred Stock  appointed by the Company,  which initially shall be Continental
Stock Transfer & Trust Company.

                  "Transfer   Restricted   Securities"   means   each  share  of
Convertible Preferred Stock (or the shares of Common Stock into which such share
of Convertible  Preferred  Stock is  convertible)  and shares of Dividend Common
Stock and issued in payment of dividends on the Convertible  Preferred Stock, if
any, as  permitted  in  accordance  with the terms  hereof until (i) the date on
which such security or its predecessor or, in the case of Dividend Common Stock,
the  Convertible  Preferred Stock in respect of which such Dividend Common Stock
has been  paid has been  effectively  registered  under the  Securities  Act and
disposed of in accordance with the Shelf Registration Statement or (ii) the date
on which such  security or its  predecessor  or, in the case of Dividend  Common
Stock, the Convertible  Preferred Stock in respect of which such Dividend Common
Stock has been paid 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
(or any  successor  rule  thereof) or would be saleable  pursuant to Rule 144(k)
under the  Securities Act had it not been held by, or had it never been held by,
an affiliate of the Company.

                  "Voting  Stock" of a corporation  means all classes of Capital
Stock of such corporation then outstanding and normally  entitled to vote in the
election of directors.





<PAGE>


                                                                            52

                  IN WITNESS WHEREOF, said WinStar Communications,
Inc., has caused this Certificate of Designations to be
signed by Timothy R. Graham, its Executive Vice President,
this 17th day of March, 1998.


                                            WINSTAR COMMUNICATIONS, INC.,

                                              by ______________________________
                                                 Name:  Timothy R. Graham
                                                 Title: Executive Vice
                                                        President


<PAGE>


                                                                      EXHIBIT A


                       FORM OF CONVERTIBLE PREFERRED STOCK


                                FACE OF SECURITY


         [THE SECURITY  EVIDENCED  HEREBY (OR ITS  PREDECESSOR)  (AND THE COMMON
STOCK INTO WHICH THIS SECURITY IS CONVERTIBLE)  AND THE COMMON STOCK ISSUABLE IN
PAYMENT OF DIVIDENDS ON THIS  SECURITY WAS  ORIGINALLY  ISSUED IN A  TRANSACTION
EXEMPT FROM REGISTRATION  UNDER SECTION 5 OF THE UNITED STATES SECURITIES ACT OF
1933 (THE "SECURITIES ACT") AND MAY NOT BE OFFERED,  SOLD,  PLEDGED OR OTHERWISE
TRANSFERRED  IN  ABSENCE  OF  SUCH  REGISTRATION  OR  AN  APPLICABLE   EXEMPTION
THEREFROM.  EACH PURCHASER OF THE SECURITY EVIDENCED HEREBY (OR THE COMMON STOCK
INTO WHICH THIS SECURITY IS  CONVERTIBLE) IS HEREBY NOTIFIED THAT THE SELLER MAY
BE RELYING ON THE EXEMPTION  FROM THE  PROVISIONS OF SECTION 5 OF THE SECURITIES
ACT  PROVIDED  BY RULE 144A  THEREUNDER.  THE HOLDER OF THE  SECURITY  EVIDENCED
HEREBY (AND OF THE COMMON STOCK INTO WHICH THIS SECURITY IS CONVERTIBLE)  AGREES
FOR THE BENEFIT OF THE COMPANY THAT (A) SUCH SECURITY (AND THE COMMON STOCK INTO
WHICH  THIS  SECURITY  IS  CONVERTIBLE)  MAY BE  RESOLD,  PLEDGED  OR  OTHERWISE
TRANSFERRED,  ONLY (1) TO A  PERSON  WHO THE  SELLER  REASONABLY  BELIEVES  IS A
QUALIFIED  INSTITUTIONAL  BUYER  WITHIN  THE  MEANING  OF RULE  144A  UNDER  THE
SECURITIES  ACT PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL  BUYER IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (2)
IN AN OFFSHORE  TRANSACTION  COMPLYING  WITH RULE 904 OF  REGULATION S UNDER THE
SECURITIES  ACT,  (3)  PURSUANT  TO AN  EXEMPTION  FROM  REGISTRATION  UNDER THE
SECURITIES  ACT  PROVIDED  BY RULE 144  THEREUNDER  (IF  AVAILABLE),  (4) TO THE
COMPANY  OR (5)  PURSUANT  TO AN  EFFECTIVE  REGISTRATION  STATEMENT  UNDER  THE
SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE  SECURITIES LAWS OF THE
STATES OF THE UNITED STATES.]*

                  [UNLESS  THIS   CERTIFICATE  IS  PRESENTED  BY  AN  AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION  ("DTC"),
NEW YORK,  NEW YORK, TO THE COMPANY OR ITS AGENT FOR  REGISTRATION  OF TRANSFER,
EXCHANGE OF 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
- --------
  Subject to  removal  upon  registration  under the  Securities  Act of 1933 or
otherwise when the security shall no longer be a restricted security.


<PAGE>


                                                                             2

IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO. HAS AN INTEREST 
HEREIN.]**

                  [TRANSFERS  OF  THIS  GLOBAL  SECURITY  SHALL  BE  LIMITED  TO
TRANSFERS  IN  WHOLE,  BUT NOT IN PART,  TO  NOMINEES  OF DTC OR TO A  SUCCESSOR
THEREOF OR SUCH  SUCCESSOR'S  NOMINEE AND  TRANSFERS  OF PORTIONS OF THIS GLOBAL
SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE  RESTRICTIONS
SET FORTH IN THE CERTIFICATE OF Designations REFERRED TO BELOW.]**

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

Certificate Number                       Number of Shares of Convertible
                                                         Preferred Stock
[   ]                                                          [       ]

                                                    CUSIP NO.: [       ]


            Series D 7% Senior Cumulative Convertible Preferred Stock
               Due 2010 (par value $0.01) (liquidation preference
                  $50 per share of Convertible Preferred Stock)

                                       of

                          WinStar Communications, Inc.


                  WinStar  Communications,  Inc.,  a Delaware  corporation  (the
"Company"),  hereby certifies that [ ] (the "Holder") is the registered owner of
fully paid and non-assessable preferred securities of the Company designated the
Series D 7% Senior  Cumulative  Convertible  Preferred Stock Due 2010 (par value
$0.01)  (liquidation  preference $50 per share of Convertible  Preferred  Stock)
(the "Convertible  Preferred Stock"). The shares of Convertible  Preferred Stock
are  transferable  on the books and records of the Registrar,  in person or by a
duly authorized  attorney,  upon surrender of this certificate duly endorsed and
in proper form for transfer. The Designations, rights, privileges, restrictions,
preferences and other terms and provisions of the Convertible Preferred Stock
- --------
  Subject to removal if not a global security.


<PAGE>


                                                                            3

represented  hereby  are  issued  and shall in all  respects  be  subject to the
provisions of the Certificate of Designations  dated March 17, 1998, as the same
may  be  amended  from  time  to  time  (the  "Certificate  of   Designations").
Capitalized  terms used herein but not defined shall have the meaning given them
in the  Certificate  of  Designations.  The Company  will  provide a copy of the
Certificate of  Designations  to a Holder without charge upon written request to
the Company at its principal place of business.

                  Reference  is  hereby  made  to  select   provisions   of  the
Convertible  Preferred  Stock  set  forth  on  the  reverse  hereof,  and to the
Certificate of  Designations,  which select  provisions  and the  Certificate of
Designations shall for all purposes have the same effect as if set forth at this
place.

                  Upon receipt of this  certificate,  the Holder is bound by the
Certificate of Designations and is entitled to the benefits thereunder.

                  Unless the  Transfer  Agent's  Certificate  of  Authentication
hereon has been properly executed,  these shares of Convertible  Preferred Stock
shall not be entitled to any benefit under the Certificate of Designations or be
valid or obligatory for any purpose.


                  IN WITNESS WHEREOF,  the Company has executed this certificate
this [ ] day of [ ], [ ].


                                      WINSTAR COMMUNICATIONS, INC.,


                                      By: __________________________________
                                          Name:
                                          Title:

[Seal]

                                      By: __________________________________
                                          Name:
                                          Title:





<PAGE>


                                                                            4

                 TRANSFER AGENT'S CERTIFICATE OF AUTHENTICATION

                  This is one of the Convertible  Preferred Stock referred to in
the within-mentioned Certificate of Designations.

Dated:   [      ], [    ]

                                          CONTINENTAL STOCK TRANSFER &
                                          TRUST COMPANY
                                           as Transfer Agent,


                                          By:  _____________________________
                                               Authorized Signatory



<PAGE>


                                                                              5

                               REVERSE OF SECURITY


                  Dividends on each share of Convertible  Preferred  Stock shall
be payable at a rate per annum set forth in the face  hereof or as  provided  in
the Certificate of Designations (including Additional Dividends).  Dividends may
be paid in cash or in shares of Common  Stock of the  Company,  at the option of
the Company.

                  The shares of Convertible  Preferred Stock shall be redeemable
as  provided  in the  Certificate  of  Designations.  The shares of  Convertible
Preferred  Stock shall be  convertible  into the  Company's  Common Stock in the
manner and according to the terms set forth in the Certificate of Designations.

                  As required  under  Delaware law, the Company shall furnish to
any Holder upon  request and without  charge,  a full  summary  statement of the
designations,  voting rights preferences,  limitations and special rights of the
shares of each class or series  authorized to be issued by the Company so far as
they have been fixed and  determined and the authority of the Board of Directors
to fix and determine the designations,  voting rights, preferences,  limitations
and special rights of the class and series of shares of the Company.



<PAGE>


                                                                           6

                                   ASSIGNMENT

                  FOR VALUE RECEIVED,  the undersigned assigns and transfers the
shares of Convertible Preferred Stock evidenced hereby to: ____________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
(Insert assignee's social security or tax identification number)

_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
(Insert address and zip code of assignee)

and irrevocably appoints:
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
agent to transfer the shares of Convertible  Preferred Stock evidenced hereby on
the books of the Transfer Agent and Registrar.  The agent may substitute another
to act for him or her.

Date: ________________________________

Signature: ________________________________
(Sign  exactly  as your  name  appears  on the  other  side of this  Convertible
Preferred Stock Certificate)

Signature Guarantee:***  _______________________________________________

____________________________
           (Signature must be guaranteed by an "eligible guarantor  institution"
that is, a bank,  stockbroker,  savings  and loan  association  or credit  union
meeting the requirements of the Registrar, which requirements include membership
or participation in the Securities  Transfer Agents Medallion  Program ("STAMP")
or  such  other  "signature  guarantee  program"  as  may be  determined  by the
Registrar in addition to, or in substitution  for, STAMP, all in accordance with
the Securities Exchange Act of 1934, as amended.)


<PAGE>


                                                                    EXHIBIT B


                              NOTICE OF CONVERSION


                    (To be Executed by the Registered Holder
              in order to Convert the Convertible Preferred Stock)


The undersigned hereby  irrevocably elects to convert (the "Conversion")  shares
of Series D 7% Senior Cumulative  Convertible  Preferred Stock (the "Convertible
Preferred  Stock"),  represented by stock  certificate  No(s). (the "Convertible
Preferred Stock  Certificates")  into shares of common stock ("Common Stock") of
WinStar Communications,  Inc. (the "Company") according to the conditions of the
Certificate of Designations, Preferences and Rights of the Convertible Preferred
Stock (the  "Certificate  of  Designations"),  as of the date written below.  If
shares are to be issued in the name of a person other than the undersigned,  the
undersigned  will pay all transfer  taxes  payable  with respect  thereto and is
delivering herewith such certificates.  No fee will be charged to the holder for
any conversion,  except for transfer  taxes, if any. A copy of each  Convertible
Preferred Stock  Certificate is attached  hereto (or evidence of loss,  theft or
destruction thereof).

The  undersigned  represents  and  warrants  that all  offers  and  sales by the
undersigned  of the shares of Common  Stock  issuable  to the  undersigned  upon
conversion  of the  Convertible  Preferred  Stock  shall  be  made  pursuant  to
registration  of the Common Stock under the  Securities Act of 1933 (the "Act"),
or pursuant to any exemption from registration under the Act.

Any holder,  upon the exercise of its conversion  rights in accordance  with the
terms of the Certificate of Designations  and the Convertible  Preferred  Stock,
agrees to be bound by the terms of the Registration Rights Agreement.

Capitalized  terms used but not defined herein shall have the meanings  ascribed
thereto in or pursuant to the Certificate of Designations.

Date of Conversion: ___________________________________________

Applicable Conversion Price: __________________________________

Number of shares of Convertible 
Preferred Stock to be Converted: ______________________________

Number of shares of Common Stock to be Issued: ________________


<PAGE>


                                                                              2

               Signature: ________________________________________________

               Name:  ____________________________________________________

               Address:** ________________________________________________

               Fax No.: __________________________________________________


*The  Company is not required to issue shares of Common Stock until the original
Convertible  Preferred  Stock  Certificate(s)  (or  evidence  of loss,  theft or
destruction thereof) to be converted are received by the Company or its Transfer
Agent.  The  Company  shall  issue and  deliver  shares  of  Common  Stock to an
overnight  courier not later than three business days  following  receipt of the
original Convertible Preferred Stock Certificate(s) to be converted.

**Address  where shares of Common Stock and any other  payments or  certificates
shall be sent by the Company.


<PAGE>


                                                                          
                                                                    EXHIBIT C


                  CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR
             REGISTRATION OF TRANSFER OF CONVERTIBLE PREFERRED STOCK

Re:      Series D 7% Senior Cumulative Convertible Preferred
         Stock Due 2010 (the "Convertible Preferred Stock") of
         WinStar Communications, Inc. (the "Company")

                  This  Certificate   relates  to  ____  shares  of  Convertible
Preferred  Stock  held  in  |_| */  book-entry  or |_|  */  definitive  form  by
_______________ (the "Transferor").

The Transferor*:

         |_| has  requested  the Transfer  Agent by written  order to deliver in
exchange for its beneficial interest in the Convertible  Preferred Stock held by
the depository shares of Convertible  Preferred Stock in definitive,  registered
form equal to its beneficial  interest in such  Convertible  Preferred Stock (or
the portion thereof indicated above); or

         |_|      has requested the Transfer Agent by written order
to exchange or register the transfer of Convertible
Preferred Stock.

                  In  connection  with  such  request  and in  respect  of  such
Convertible  Preferred  Stock,  the  Transferor  does  hereby  certify  that the
Transferor  is familiar with the  Certificate  of  Designations  relating to the
above-captioned  Convertible  Preferred  Stock  and  that the  transfer  of this
Convertible  Preferred Stock does not require  registration under the Securities
Act of 1933 (the "Securities Act") because */:

         |_|      Such Convertible Preferred Stock is being acquired for the 
Transferor's own account without transfer.

         |_|      Such Convertible Preferred Stock is being transferred to the 
Company.

         |_|      Such Convertible Preferred Stock is being transferred (i) to 
a qualified institutional buyer (as defined in Rule 144A under the Securities 
Act),  in  reliance  on  Rule  144A  or  (ii)  pursuant  to  an  exemption  from
registration  in accordance  with Rule 904 under the Securities Act (and, in the
case of clause  (ii),  based on an opinion of counsel if the Company so requests
and together with a certification in substantially  the form of Exhibit D to the
Certificate of Designations). 

_____________________
__/Please check applicable box.


<PAGE>


                                                                         2


         |_| Such Convertible  Preferred Stock is being  transferred in reliance
on and in compliance with another  exemption from the registration  requirements
of the  Securities  Act (and based on an  opinion  of counsel if the  Company so
requests).


                                        ______________________________________
                                        [INSERT NAME OF TRANSFEROR]

                                        by  __________________________________

Date:  ___________________


<PAGE>


                                                                  EXHIBIT D


                     FORM OF CERTIFICATE TO BE DELIVERED IN
               CONNECTION WITH TRANSFERS PURSUANT TO REGULATION S

                                                         ----------, ----

Continental Stock Transfer & Trust Company
Attention:  [           ]


Ladies and Gentlemen:

                  In connection  with our proposed  sale of certain  Series D 7%
Senior  Cumulative  Convertible  Preferred  Stock  Due  2010  (the  "Convertible
Preferred Stock") of WinStar Communications, Inc., a Delaware corporation ("the
"Company"), we represent that:

               (i) the offer of the Convertible  Preferred Stock was not made to
          a person in the United States;

               (ii) at the time the buy order was originated, the transferee was
          outside  the United  States or we and any person  acting on our behalf
          reasonably believed that the transferee was outside the United States;

               (iii) no  directed  selling  efforts  have been made by us in the
          United States in  contravention  of the requirements of Rule 903(b) or
          Rule  904(b) of  Regulation  S under the  Securities  Act of 1933 (the
          "Securities Act"), as applicable; and

               (iv) the  transaction  is not part of a plan or  scheme  by us to
          evade the registration requirements of the Securities Act.

     You and the  Company  are  entitled  to rely upon this  letter  and you are
irrevocably authorized to produce this letter or a copy hereof to any interested
party in any administrative or legal proceedings or official inquiry with


<PAGE>
                                                                             2 

respect to the matters covered hereby. Terms used in this certificate have the
meanings set forth in Regulation S.

                              Very truly yours,


                               ----------------------------------
                              (Name of Transferor)

                               by _______________________________
                                  Name:
                                  Title:
                                  Address:



<PAGE>


                       FORM OF CONVERTIBLE PREFERRED STOCK


                                FACE OF SECURITY


         [THE SECURITY  EVIDENCED  HEREBY (OR ITS  PREDECESSOR)  (AND THE COMMON
STOCK INTO WHICH THIS SECURITY IS CONVERTIBLE)  AND THE COMMON STOCK ISSUABLE IN
PAYMENT OF DIVIDENDS ON THIS  SECURITY WAS  ORIGINALLY  ISSUED IN A  TRANSACTION
EXEMPT FROM REGISTRATION  UNDER SECTION 5 OF THE UNITED STATES SECURITIES ACT OF
1933 (THE "SECURITIES ACT") AND MAY NOT BE OFFERED,  SOLD,  PLEDGED OR OTHERWISE
TRANSFERRED  IN  ABSENCE  OF  SUCH  REGISTRATION  OR  AN  APPLICABLE   EXEMPTION
THEREFROM.  EACH PURCHASER OF THE SECURITY EVIDENCED HEREBY (OR THE COMMON STOCK
INTO WHICH THIS SECURITY IS  CONVERTIBLE) IS HEREBY NOTIFIED THAT THE SELLER MAY
BE RELYING ON THE EXEMPTION  FROM THE  PROVISIONS OF SECTION 5 OF THE SECURITIES
ACT  PROVIDED  BY RULE 144A  THEREUNDER.  THE HOLDER OF THE  SECURITY  EVIDENCED
HEREBY (AND OF THE COMMON STOCK INTO WHICH THIS SECURITY IS CONVERTIBLE)  AGREES
FOR THE BENEFIT OF THE COMPANY THAT (A) SUCH SECURITY (AND THE COMMON STOCK INTO
WHICH  THIS  SECURITY  IS  CONVERTIBLE)  MAY BE  RESOLD,  PLEDGED  OR  OTHERWISE
TRANSFERRED,  ONLY (1) TO A  PERSON  WHO THE  SELLER  REASONABLY  BELIEVES  IS A
QUALIFIED  INSTITUTIONAL  BUYER  WITHIN  THE  MEANING  OF RULE  144A  UNDER  THE
SECURITIES  ACT PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL  BUYER IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (2)
IN AN OFFSHORE  TRANSACTION  COMPLYING  WITH RULE 904 OF  REGULATION S UNDER THE
SECURITIES  ACT,  (3)  PURSUANT  TO AN  EXEMPTION  FROM  REGISTRATION  UNDER THE
SECURITIES  ACT  PROVIDED  BY RULE 144  THEREUNDER  (IF  AVAILABLE),  (4) TO THE
COMPANY  OR (5)  PURSUANT  TO AN  EFFECTIVE  REGISTRATION  STATEMENT  UNDER  THE
SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE  SECURITIES LAWS OF THE
STATES OF THE UNITED STATES.]*

                  [UNLESS  THIS   CERTIFICATE  IS  PRESENTED  BY  AN  AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION  ("DTC"),
NEW YORK,  NEW YORK, TO THE COMPANY OR ITS AGENT FOR  REGISTRATION  OF TRANSFER,
EXCHANGE OF 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
- --------
  Subject to  removal  upon  registration  under the  Securities  Act of 1933 or
otherwise when the security shall no longer be a restricted security.


<PAGE>


                                                                             2

IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO. HAS AN INTEREST 
HEREIN.]**

                  [TRANSFERS  OF  THIS  GLOBAL  SECURITY  SHALL  BE  LIMITED  TO
TRANSFERS  IN  WHOLE,  BUT NOT IN PART,  TO  NOMINEES  OF DTC OR TO A  SUCCESSOR
THEREOF OR SUCH  SUCCESSOR'S  NOMINEE AND  TRANSFERS  OF PORTIONS OF THIS GLOBAL
SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE  RESTRICTIONS
SET FORTH IN THE CERTIFICATE OF Designations REFERRED TO BELOW.]**

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

Certificate Number                       Number of Shares of Convertible
                                                         Preferred Stock
[   ]                                                          [       ]

                                                    CUSIP NO.: [       ]


            Series D 7% Senior Cumulative Convertible Preferred Stock
               Due 2010 (par value $0.01) (liquidation preference
                  $50 per share of Convertible Preferred Stock)

                                       of

                          WinStar Communications, Inc.


                  WinStar  Communications,  Inc.,  a Delaware  corporation  (the
"Company"),  hereby certifies that [ ] (the "Holder") is the registered owner of
fully paid and non-assessable preferred securities of the Company designated the
Series D 7% Senior  Cumulative  Convertible  Preferred Stock Due 2010 (par value
$0.01)  (liquidation  preference $50 per share of Convertible  Preferred  Stock)
(the "Convertible  Preferred Stock"). The shares of Convertible  Preferred Stock
are  transferable  on the books and records of the Registrar,  in person or by a
duly authorized  attorney,  upon surrender of this certificate duly endorsed and
in proper form for transfer. The Designations, rights, privileges, restrictions,
preferences and other terms and provisions of the Convertible Preferred Stock
- --------
  Subject to removal if not a global security.


<PAGE>


                                                                            3

represented  hereby  are  issued  and shall in all  respects  be  subject to the
provisions of the Certificate of Designations  dated March 17, 1998, as the same
may  be  amended  from  time  to  time  (the  "Certificate  of   Designations").
Capitalized  terms used herein but not defined shall have the meaning given them
in the  Certificate  of  Designations.  The Company  will  provide a copy of the
Certificate of  Designations  to a Holder without charge upon written request to
the Company at its principal place of business.

                  Reference  is  hereby  made  to  select   provisions   of  the
Convertible  Preferred  Stock  set  forth  on  the  reverse  hereof,  and to the
Certificate of  Designations,  which select  provisions  and the  Certificate of
Designations shall for all purposes have the same effect as if set forth at this
place.

                  Upon receipt of this  certificate,  the Holder is bound by the
Certificate of Designations and is entitled to the benefits thereunder.

                  Unless the  Transfer  Agent's  Certificate  of  Authentication
hereon has been properly executed,  these shares of Convertible  Preferred Stock
shall not be entitled to any benefit under the Certificate of Designations or be
valid or obligatory for any purpose.


                  IN WITNESS WHEREOF,  the Company has executed this certificate
this [ ] day of [ ], [ ].


                                      WINSTAR COMMUNICATIONS, INC.,


                                      By: __________________________________
                                          Name:
                                          Title:

[Seal]

                                      By: __________________________________
                                          Name:
                                          Title:





<PAGE>


                                                                            4

                 TRANSFER AGENT'S CERTIFICATE OF AUTHENTICATION

                  This is one of the Convertible  Preferred Stock referred to in
the within-mentioned Certificate of Designations.

Dated:   [      ], [    ]

                                          CONTINENTAL STOCK TRANSFER &
                                          TRUST COMPANY
                                           as Transfer Agent,


                                          By:  _____________________________
                                               Authorized Signatory



<PAGE>


                                                                              5

                               REVERSE OF SECURITY


                  Dividends on each share of Convertible  Preferred  Stock shall
be payable at a rate per annum set forth in the face  hereof or as  provided  in
the Certificate of Designations (including Additional Dividends).  Dividends may
be paid in cash or in shares of Common  Stock of the  Company,  at the option of
the Company.

                  The shares of Convertible  Preferred Stock shall be redeemable
as  provided  in the  Certificate  of  Designations.  The shares of  Convertible
Preferred  Stock shall be  convertible  into the  Company's  Common Stock in the
manner and according to the terms set forth in the Certificate of Designations.

                  As required  under  Delaware law, the Company shall furnish to
any Holder upon  request and without  charge,  a full  summary  statement of the
designations,  voting rights preferences,  limitations and special rights of the
shares of each class or series  authorized to be issued by the Company so far as
they have been fixed and  determined and the authority of the Board of Directors
to fix and determine the designations,  voting rights, preferences,  limitations
and special rights of the class and series of shares of the Company.



<PAGE>


                                                                           6

                                   ASSIGNMENT

                  FOR VALUE RECEIVED,  the undersigned assigns and transfers the
shares of Convertible Preferred Stock evidenced hereby to: ____________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
(Insert assignee's social security or tax identification number)

_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
(Insert address and zip code of assignee)

and irrevocably appoints:
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
agent to transfer the shares of Convertible  Preferred Stock evidenced hereby on
the books of the Transfer Agent and Registrar.  The agent may substitute another
to act for him or her.

Date: ________________________________

Signature: ________________________________
(Sign  exactly  as your  name  appears  on the  other  side of this  Convertible
Preferred Stock Certificate)

Signature Guarantee:***  _______________________________________________

____________________________
           (Signature must be guaranteed by an "eligible guarantor  institution"
that is, a bank,  stockbroker,  savings  and loan  association  or credit  union
meeting the requirements of the Registrar, which requirements include membership
or participation in the Securities  Transfer Agents Medallion  Program ("STAMP")
or  such  other  "signature  guarantee  program"  as  may be  determined  by the
Registrar in addition to, or in substitution  for, STAMP, all in accordance with
the Securities Exchange Act of 1934, as amended.)




<PAGE>


    




                                4,000,000 Shares

                          WINSTAR COMMUNICATIONS, INC.

            Series D 7% Senior Cumulative Convertible Preferred Stock

                                    Due 2010

                     (Liquidation Preference $50 per share)


                          REGISTRATION RIGHTS AGREEMENT


                                                              March 12, 1998

Credit Suisse First Boston Corporation
Smith Barney Inc.
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC
c/o Credit Suisse First Boston Corporation
Eleven Madison Avenue
New York, NY 10010


Ladies and Gentlemen:

                  Winstar  Communications,  Inc.,  a Delaware  corporation  (the
"Company"),  together  with its wholly owned  subsidiary,  WinStar  Multichannel
Corp., a Delaware corporation,  propose to issue and sell to Credit Suisse First
Boston  Corporation,  Smith Barney Inc.,  Morgan Stanley & Co.  Incorporated and
NationsBanc Montgomery Securities LLC (the "Initial Purchasers"), upon the terms
set  forth  in a  purchase  agreement  of  even  date  herewith  (the  "Purchase
Agreement"),  4,000,000  shares of the Company's  Series D 7% Senior  Cumulative
Convertible Preferred Stock Due 2010 (liquidation preference $50 per share) (the
"Convertible   Preferred  Stock").  The  Convertible  Preferred  Stock  will  be
convertible  into  shares of Common  Stock,  par value  $0.01 per share,  of the
Company (the "Common  Stock") at the conversion  price set forth in the Offering
Circular dated March 12, 1998 (the "Offering  Circular"),  subject to adjustment
in accordance with the  Certificate of Designation of the Convertible  Preferred
Stock (the "Certificate of Designation"). Dividends on the Convertible Preferred
Stock may,  at the option of the Company be paid in shares of Common  Stock,  as
described in the Offering  Circular.  The  Convertible  Preferred  Stock and the
Common Stock issuable as dividends on the  Convertible  Preferred  Stock or upon
conversion of the Convertible  Preferred Stock are collectively  herein referred
to as the "Securities" and each of them as held singularly is herein referred to
as a "Security". As an inducement to the Initial Purchasers to


<PAGE>


                                                                            2

enter into the  Purchase  Agreement  and in  satisfaction  of a condition to the
Initial Purchasers' obligations thereunder,  the Company agrees with the Initial
Purchasers,  (i) for the  benefit  of the  Initial  Purchasers  and (ii) for the
benefit  of the  holders  of the  Securities  from  time  to time  (each  of the
foregoing a "Holder" and together the "Holders"), as follows:

                  1.  Shelf  Registration.  So long as any  Transfer  Restricted
Security  (as defined in Section 5 hereof)  exists,  the Company  shall take the
following actions:

                  (a) The Company  shall,  at its cost,  prepare  and, not later
than 45 days  after  (or if such  45th  day is not a  business  day,  the  first
business day thereafter) the date of original issue of the Convertible Preferred
Stock, file with the Securities and Exchange  Commission (the  "Commission") and
thereafter  shall use its best  efforts to cause to be declared  effective on or
prior to August 15, 1998 a registration  statement on the appropriate  form (the
"Shelf  Registration  Statement")  covering  the offer and sale of the  Transfer
Restricted  Securities  by the Holders  thereof from time to time in  accordance
with the methods of distribution set forth in the Shelf  Registration  Statement
and  Rule  415  under  the  Securities  Act  of  1933  (the  "Securities   Act")
(hereinafter, the "Shelf Registration").

                  (b) The Company  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  relevant
Securities,  until  such  time  as all  the  Securities  covered  by  the  Shelf
Registration  Statement have been sold pursuant  thereto or may be sold pursuant
to Rule  144(k)  under  the  Securities  Act (or any  successor  rule  thereof),
assuming  for this purpose that the Holders  thereof are not  affiliates  of the
Company (in any such case,  such  period  being  called the "Shelf  Registration
Period").  The Company 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 that would result in Holders of Securities  covered
thereby not being able to offer and sell such  Securities  during  that  period,
unless (i) such action is required by applicable law or (ii) upon the occurrence
of any event  contemplated by paragraph  2(b)(iv) below, such action is taken by



<PAGE>


                                                                             3

the  Company  in good  faith  and for valid  business  reasons  and the  Company
thereafter  promptly  complies with the  requirements of paragraph 2(h) below if
the Company  has  determined  in good faith that there are no material  legal or
commercial impediments in so doing.

                  (c)  Notwithstanding any other provisions of this Agreement to
the  contrary,  the Company shall cause (other than  information  required to be
supplied  by the  selling  Holders  pursuant  to this  Agreement)  (i) the Shelf
Registration   Statement  and  the  related  prospectus  and  any  amendment  or
supplement  thereto  to  comply in all  material  respects  with the  applicable
requirements  of the  Securities  Act  and  the  rules  and  regulations  of the
Commission  thereunder,  (ii) the Shelf Registration Statement and any amendment
thereto not to contain,  when it becomes  effective,  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  a part  of the  Shelf  Registration  Statement,  and any  amendment  or
supplement to such prospectus, not to contain, as of the date of such prospectus
or amendment or supplement,  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.

                  (d) The  Company  shall  ensure  that the  Shelf  Registration
Statement includes the shares of Common Stock issued in payment of dividends, if
any, as  permitted in  accordance  with the terms of the  Convertible  Preferred
Stock.

                  2.  Registration  Procedures.  In  connection  with the  Shelf
Registration  contemplated  by Section 1 hereof the following  provisions  shall
apply so long as any Transfer Restricted Security exists:

                  (a) The Company  shall (i)  furnish,  without  charge,  to the
Initial Purchasers,  prior to the filing thereof with the Commission,  a copy of
the Shelf  Registration  Statement and each amendment thereof and each amendment
or supplement,  other than such amendments or supplements  filed solely pursuant
to (iii) below,  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  Shelf  Registration
Statement,  shall use its best efforts to reflect in each such document, when so
filed with the


<PAGE>


                                                                            4

Commission,  such comments as such Initial  Purchaser  reasonably and timely may
propose,  (ii) include in each such document the names of the Holders who notify
the Company that they propose to sell Transfer Restricted Securities pursuant to
the Shelf  Registration  Statement  as selling  security  holders and (iii) file
pursuant to Rule  424(b)  under the  Securities  Act an  amendment  to the Shelf
Registration  Statement  or  amend  the  prospectus  to  cover  new  Holders  of
Securities upon written notice by such new Holders to such effect.

                  (b) The  Company  shall  give  written  notice to the  Initial
Purchasers and the Holders of Transfer Restricted Securities included within the
coverage of the Shelf  Registration  Statement (which notice pursuant to clauses
(ii)-(iv)  hereof shall be accompanied  by an  instruction,  if  applicable,  to
suspend the use of the prospectus until the requisite changes have been made):

                  (i) when the Shelf  Registration  Statement  or any  amendment
         thereto  has  been  filed  with  the  Commission  and  when  the  Shelf
         Registration  Statement  or any  post-effective  amendment  thereto has
         become effective;

                  (ii) of the  issuance  by the  Commission  of any  stop  order
         suspending the effectiveness of the Shelf Registration Statement or the
         initiation of any proceedings for that purpose;

                  (iii) of the  receipt by the  Company 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

                  (iv) of the  happening of any event that  requires the Company
         to make changes in the Shelf  Registration  Statement or the prospectus
         in order that the Shelf  Registration  Statement and the  prospectus do
         not contain an untrue  statement of a material  fact and do not 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 Company shall make every  reasonable  effort to obtain
the  withdrawal  at the earliest  possible  time,  of any order  suspending  the
effectiveness of the Shelf Registration Statement.


<PAGE>


                                                                            5

                  (d) The  Company  shall  furnish  to each  Holder of  Transfer
Restricted Securities included within the coverage of the Shelf Registration, if
the  Holder  so  requests  in  writing,  without  charge,  one copy of the Shelf
Registration  Statement  and any  post-effective  amendment  thereto,  including
financial statements and schedules,  and, all exhibits thereto (including those,
if any, incorporated by reference).

                  (e) The Company shall,  during the Shelf Registration  Period,
deliver to each Holder of Transfer  Restricted  Securities  included  within the
coverage of the Shelf Registration Statement,  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 Company consents,  subject to the provisions of this
Agreement,  to the use of the then current  prospectus or any amendment thereto,
together  with  any  supplement  thereto,  by each  of the  selling  Holders  in
connection  with the  offering and sale of the  Transfer  Restricted  Securities
covered by the prospectus,  or any amendment or supplement thereto,  included in
the Shelf Registration Statement.

                  (f) Prior to any public offering of the Securities pursuant to
the Shelf  Registration  Statement,  the  Company  shall  register or qualify or
cooperate  with the  Holders  of the  Transfer  Restricted  Securities  included
therein and their  respective  counsel in connection  with the  registration  or
qualification  of such  Securities  for offer and sale under the  securities  or
"blue  sky"  laws of  such  states  of the  United  States  as any  such  Holder
reasonably  requests  in  writing  and do any  and  all  other  acts  or  things
reasonably  necessary  or  advisable  to  enable  the  offer  and  sale  in such
jurisdictions  of the Securities  covered by the Shelf  Registration  Statement;
provided,  however,  that the  Company  shall  not be  required  to (i)  qualify
generally  to do business  in any  jurisdiction  where it is not then  otherwise
required to be so qualified  or (ii) take any action  which would  subject it to
general  service of process or to taxation in any  jurisdiction  where it is not
then so subject.

                  (g) The  Company  shall  cooperate  with  the  Holders  of the
Transfer Restricted Securities to facilitate the timely preparation and delivery
of  certificates   representing  the  Securities  sold  pursuant  to  the  Shelf
Registration Statement free of any restrictive legends and in such denominations



<PAGE>


                                                                         6

and registered in such names as the Holders may request in connection with sales
of the Securities pursuant to the Shelf Registration Statement.

                  (h)  Upon  the  occurrence  of  any  event   contemplated   by
paragraphs  (ii)  through (iv) of Section 2(b) above during the period for which
the Company is required to maintain an effective Shelf  Registration  Statement,
the Company shall promptly  prepare and file a  post-effective  amendment to the
Shelf  Registration   Statement  or  an  amendment  or  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 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 misleading. If the
Company  notifies the Initial  Purchasers or the Holders of Transfer  Restricted
Securities included within the coverage of the Shelf Registration  Statement, in
accordance  with  paragraphs (ii) through (iv) of Section 2(b) above, to suspend
the use of the prospectus  until the requisite  changes to the  prospectus  have
been made, then the Initial Purchasers and the Holders shall suspend use of such
prospectus.

                  (i)  Not  later   than  the   effective   date  of  the  Shelf
Registration  Statement,   the  Company  will  provide  CUSIP  numbers  for  the
Convertible  Preferred Stock registered for resale under the Shelf  Registration
Statement, and use reasonable commercial efforts to provide printed certificates
for such  Convertible  Preferred  Stock,  in form  eligible for deposit with The
Depository Trust Company.

                  (j) The Company will comply with all rules and  regulations of
the  Commission  to the extent and so long as they are  applicable  to the Shelf
Registration  and will make  generally  available  to its  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  Company's
first  fiscal  quarter   commencing  after  the  effective  date  of  the  Shelf
Registration Statement, which statement shall cover such 12-month period.

                  (k) The Company may require  each Holder of  Securities  to be
sold pursuant to the Shelf Registration Statement to furnish to the Company such
information  regarding the Holder,  his or her  ownership of Securities  and the
distribution of the Securities by such Holder as the


<PAGE>


                                                                            7

Company  may from time to time  reasonably  require for  inclusion  in the Shelf
Registration  Statement,  and the Company may exclude from such registration the
Securities  of any  Holder  that  fails to  furnish  such  information  within a
reasonable time after receiving such request.

                  (l) The  Company  shall  (i)  make  reasonably  available  for
inspection by the Holders of the Transfer Restricted  Securities included within
the coverage of the Shelf Registration Statement and any attorney, accountant or
other agent retained by the Holders of the Securities all relevant financial and
other records,  pertinent  corporate documents and properties of the Company and
(ii)  cause  the  Company's  officers,  directors,  employees,  accountants  and
auditors to supply all relevant information  reasonably requested by the Holders
of the Securities or any such 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 (i) shall be  coordinated by you and, on
behalf  of  the  other  parties,  by  one  counsel  (the  "Designated  Counsel")
designated  by the  Holders  of a  majority  of the  shares  of the  Convertible
Preferred  Stock  covered by the Shelf  Registration  Statement  (provided  that
Holders of Common Stock issued upon the conversion of the Convertible  Preferred
Stock  shall be  deemed  to be  Holders  of the  aggregate  number  of shares of
Convertible Preferred Stock from which such Common Stock was converted) and (ii)
shall not be available  for any such Holder that is a competitor of the Company,
and provided further that any records, documents, properties or information that
are  designated by the Company 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 pursuant to the requirements of the Securities Act).

                  (m) The Company, if requested by the Designated Counsel, shall
cause (i) its counsel to deliver an opinion and updates thereof  relating to the
Transfer Restricted Securities in customary form, with customary limitations,


<PAGE>


                                                                             8

qualifications and exceptions, addressed to such Holders, 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
the due incorporation and good standing of the Company and its subsidiaries; the
due   authorization,    execution   and   issuance,   and   the   validity   and
nonassessibility,  of the applicable  Securities;  other than as disclosed,  the
absence of governmental approvals required to be obtained in connection with the
Shelf  Registration  Statement,  or the  offering  and  sale  of the  applicable
Securities;  the compliance as to form of such Shelf Registration  Statement and
any  documents  incorporated  by reference  therein;  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 Securities  Exchange Act of 1934, as amended (the
"Exchange  Act"))),  (ii) its  officers to execute  and  deliver  all  customary
documents  and  certificates  and updates  thereof  reasonably  requested by the
Designated  Counsel  and  (iii)  its  independent  public  accountants  and  the
independent  public  accountants  with  respect  to any other  entity  for which
financial information is provided in the Shelf Registration Statement to provide
to the  selling  Holders  of the  applicable  Securities  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.

                  (n) The Company  will use its best efforts to cause the Common
Stock  included  in  such  Shelf  Registration  Statement  to  be,  upon  resale
thereunder,  listed on each securities exchange,  if any, on which any shares of
Common Stock are then listed.

                  (o) The Company  shall use  reasonable  commercial  efforts to
take all other  steps  necessary  to effect  the  registration  of the  Transfer
Restricted Securities covered by the Shelf Registration  Statement  contemplated
hereby.



<PAGE>


                                                                           9

                  (p) The Company  shall use  reasonable  commercial  efforts to
cooperate  with  Holders of  Convertible  Preferred  Stock that are  required to
receive  physical  certificates  evidencing  shares of Common Stock  received as
dividends  paid in respect of such  Convertible  Preferred  Stock to assist such
Holders  through  the prompt  delivery  of such  physical  certificates  to such
Holders.

                  3. Registration  Expenses. The Company shall bear all fees and
expenses  incurred in connection with the  performance of its obligations  under
Sections 1 through 2 hereof,  whether or not the Shelf Registration Statement is
filed or becomes  effective,  and shall  bear or  reimburse  the  Holders of the
Securities  covered  by the  Shelf  Registration  for the  reasonable  fees  and
disbursements of the Designated Counsel.

                  4.  Indemnification.  (a) The Company  agrees to indemnify and
hold harmless each Holder of Transfer Restricted  Securities included within the
coverage  of the Shelf  Registration  Statement  and each  person,  if any,  who
controls  such Holder within the meaning of the  Securities  Act or the Exchange
Act (each Holder 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 any
losses, claims, damages,  liabilities or actions relating to purchases and sales
of the  Securities) to which each  Indemnified  Party becomes  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 the Shelf
Registration  Statement or prospectus or in any amendment or supplement  thereto
or in any preliminary  prospectus relating to the 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 subject to subsection (c) below, 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
the  Company  shall not be liable in any such case to the extent that such loss,
claim, damage, liability, or action in respect thereof arises out of or is based
upon (x) the use of any  prospectus in violation of the last sentence of Section
2(h),  or (y) any untrue  statement or alleged  untrue  statement or omission or
alleged omission made in the Shelf


<PAGE>


                                                                           10

Registration  Statement or prospectus or in any amendment or supplement  thereto
or in any preliminary  prospectus relating to the Shelf Registration in reliance
upon, and in conformity with, written information  pertaining to such Holder and
furnished  to the  Company  by or on  behalf  of such  Holder  specifically  for
inclusion therein; provided further, however, that this indemnity agreement will
be separate  from any  liability  which the Company may  otherwise  have to such
Indemnified Party;  provided further,  however,  that with respect to any untrue
statement or alleged  untrue  statement in or omission or alleged  omission from
any prospectus,  the indemnity  agreement contained in this subsection (a) shall
not enure to the benefit of any Holder that sold the Securities concerned to the
person asserting any such losses, claims, damages or liabilities,  to the extent
that any such loss,  claim,  damage or liability of such Holder 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
prospectus if the Company had previously furnished copies thereof to such Holder
and such  prospectus  corrected  such  untrue  statement  or omission or alleged
untrue statement or omission.

                  (b) Each Holder of  Transfer  Restricted  Securities  included
within the  coverage  of the Shelf  Registration  Statement,  severally  and not
jointly,  will indemnify and hold harmless the Company and each person,  if any,
who  controls  the  Company  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 Company or any such controlling person
becomes 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 Shelf 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 Company by or on behalf of such Holder  specifically
for inclusion  therein;  and,  subject to the limitation  set forth  immediately
preceding  this  clause,  and to  subsection  (c)  below,  shall  reimburse,  as
incurred, the Company for any legal or other expenses


<PAGE>

                                                                           11

reasonably  incurred by the Company or any such controlling person in connection
with investigating or defending any loss, claim, damage,  liability or action in
respect  thereof;  provided,  however,  that  such  Holder  shall  not  have any
liability  under this clause (b) in excess of the aggregate  purchase price paid
by such Holder for the shares of Convertible  Preferred  Stock purchased by such
Holder.  This indemnity agreement will be separate from any liability which such
Holder may otherwise have to the Company or any of its controlling persons.

                  (c) Promptly after receipt by an indemnified  party under this
Section 4 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 4,
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 subsections (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  4 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 4 is
unavailable  or  insufficient  to  hold  harmless  an  indemnified  party  under
subsections (a) or (b) above, then


<PAGE>


                                                                            12

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 subsections (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  registration  of the  Securities,  pursuant  to the  Shelf
Registration,  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
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 Company 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  subsection (d), the Holders 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 the Shelf  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 Company within the
meaning of the


<PAGE>


                                                                            13

Securities Act or the Exchange Act shall have the same rights to contribution as
the Company.

                  (e) The  agreements  contained in this Section 4 shall survive
the sale of the  Securities  pursuant to the Shelf  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.

                  5.  Additional  Dividends  Under  Certain  Circumstances.  (a)
Additional   dividends  (the   "Additional   Dividends")  with  respect  to  the
Convertible  Preferred  Stock  shall  accrue as follows if any of the  following
events occur (each such event in clauses (i) and (ii) below being herein  called
a "Registration Default"):

               (i) if by August 15, 1998, the Shelf  Registration  Statement has
         not been declared effective by the Commission; or

                  (ii) if after the Shelf  Registration  Statement  is  declared
         effective (A) the Shelf Registration  Statement thereafter ceases to be
         effective;  or (B) the  Shelf  Registration  Statement  or the  related
         prospectus  ceases to be usable (in each case  except as  permitted  in
         paragraph (b) below) in connection with resales of Transfer  Restricted
         Securities in accordance with and during the periods  specified  herein
         because  either (1) any event  occurs as a result of which the  related
         prospectus  forming  part of such Shelf  Registration  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  Shelf  Registration  Statement  or
         supplement the related prospectus, to comply with the Securities Act or
         the Exchange Act or the respective rules thereunder.

                  Additional Dividends shall accrue on the shares of Convertible
Preferred  Stock  from and  including  the date on which  any such  Registration
Default shall occur,  to but  excluding the date on which all such  Registration
Defaults have been cured, at a rate of 2% per annum in addition to the dividends
otherwise accruing on the Convertible Preferred Stock).

               (b) A Registration  Default referred to in Section 5(a)(ii) shall
 


<PAGE>


                                                                            14

be deemed  not to have  occurred  and be  continuing  in  relation  to the Shelf
Registration  Statement  or the  related  prospectus  if (i)  such  Registration
Default has  occurred  solely as a result of (x) the filing of a  post-effective
amendment to the Shelf  Registration  Statement to  incorporate  annual  audited
financial  information  with  respect to the Company  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) other material events, with respect
to the  Company  that  would  need to be  described  in the  Shelf  Registration
Statement  or the related  prospectus  and (ii) in the case of clause  (y),  the
Company proceeds 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) the Shelf Registration Statement and
related prospectus to describe such events; provided,  however, that in any case
if such  Registration  Default  occurs for a  continuous  period in excess of 45
days,  Additional  Dividends  shall be  payable  in  accordance  with the  above
paragraph from the 46th day after such  Registration  Default  initially  occurs
until such Registration Default is cured.

                  (c) Any amounts of Additional Dividends due pursuant to clause
(a)(i) or (a)(ii) of this  Section 5 or  pursuant to the  proviso  contained  in
Section 5(b) will be payable on the regular  dividend payment dates with respect
to the Convertible  Preferred Stock on the same terms and conditions and subject
to the same  limitations  as  pertain  at such time for the  payment  of regular
dividends.  The amount of Additional Dividends will be determined by multiplying
the applicable Additional Dividends rate by the aggregate liquidation preference
of the  outstanding  shares of  Convertible  Preferred  Stock,  multiplied  by a
fraction,  the numerator of which is the number of days such Additional Dividend
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.

                  (d) "Transfer Restricted Securities" means each Security until
(i) 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 (ii) 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 (or any  successor  rule  thereof) or would be
saleable  pursuant to Rule 144(k) under the  Securities Act had it not been held
by, or had never been held by, an affiliate of the Company.


<PAGE>


                                                                          15

                  6.  Rules 144 and  144A.  So long as any  Transfer  Restricted
Security  exists,  the  Company  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  Company is not  required  to file such
reports,  it  will,  upon the  reasonable  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
Company  covenants  that,  in the event the  Company  is no  longer  subject  to
Sections 13 or 15(d) of the Exchange  Act, 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  Company  will  provide  a copy of this
Agreement to prospective  purchasers of Securities  identified to the Company by
the Initial Purchasers upon request.  Notwithstanding the foregoing,  nothing in
this  Section 6 shall be deemed to require the  Company to  register  any of its
securities pursuant to the Exchange Act.

                  7. 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 Company  and the written  consent of the Holders of a majority of the shares
of Transfer Restricted  Securities (provided that Holders of Common Stock issued
upon conversion of Convertible  Preferred Stock shall be deemed to be Holders of
the aggregate number of Convertible Preferred Stock from which such Common Stock
was converted) 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:



<PAGE>


                                                                          16

                  (1) if to the Holders,  at the most current  address shown for
         the Holders in the records of the Transfer  Agent,  with a copy in like
         manner to you as follows:

                           c/o Credit Suisse First Boston Corporation
                           Eleven Madison Avenue
                           New York, NY 10010
                           Fax No.: (212) 325-8278
                           Attention:  Transactions Advisory Group

         with a copy to:

                           Cravath, Swaine & Moore
                           Worldwide Plaza
                           825 Eighth Avenue
                           New York, NY 10019
                           Fax No.:  (212) 474-3700
                           Attention:  Kris F. Heinzelman, Esq.

                  (2) if to the Company, at its address as follows:

                          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
                          Fax No.: (212) 682-2320
                          Attention: David A. Miller, Esq.

                  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;  Damages. The Company has not,
as of the date hereof,  entered into, nor shall it, 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.


<PAGE>


                                                                             17

Notwithstanding  anything to the  contrary  contained in this  Agreement,  it is
hereby  acknowledged  and agreed that the Company  shall have no  liability  for
monetary  damages to the  Initial  Purchasers  or any  Holder for any  breaches,
failures  to  comply or  violations  by it of  Section 1 or 2 of this  Agreement
except as expressly provided in Section 4 or 5 hereof; provided, however, in the
event that the Company  breaches,  fails to comply or violates the provisions of
Section 1 or 2 hereof,  the Holders  shall be entitled to, and the Company shall
not oppose the granting of, equitable relief,  including injunction and specific
performance.

                  (d) Successors and Assigns.  This Agreement shall inure to the
benefit  of and be  binding  upon  the  successors  and  assigns  of each of the
parties, including, without the need for an express assignment or any consent by
the Company thereto,  subsequent Holders of Transfer Restricted Securities.  The
Company  hereby agrees to extend the benefits of this Agreement to any Holder of
Transfer Restricted  Securities and any such Holder may specifically enforce the
provisions of this Agreement as if an original party hereto.

                  (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.

                  (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 LAWS OF THE STATE OF NEW YORK WITHOUT REGARD
TO PRINCIPLES OF CONFLICTS OF LAWS.

                  By the execution and delivery of this  Agreement,  the Company
submits to the  nonexclusive  jurisdiction  of any federal or state court in the
State of New York.

                  (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.



<PAGE>


                                                                            18

                  (i)  Securities  Held by the Company.  Whenever the consent or
approval of Holders of a specified number of Transfer  Restricted  Securities is
required hereunder, Securities held by the Company or its affiliates (other than
subsequent Holders of Transfer Restricted  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.

                  If the foregoing is in accordance with your  understanding  of
our  agreement,  please  sign and return to the  Company a  counterpart  hereof,
whereupon this instrument, along


<PAGE>

                                                                             19

with all counterparts, will become a binding agreement among the several Initial
Purchasers and the Company 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
Smith Barney Inc.
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC

By:  Credit Suisse First Boston Corporation

By:  ______________________________________
     Name:
     Title:




<PAGE>


WinStar to Raise $200 Million in Preferred Stock Offering

NEW YORK--March 12, 1998--WinStar Communications, Inc. (NASDAQ - WCII) announced
today it has signed a purchase  agreement with several investment banks to place
$200 million of 7% Senior Cumulative Convertible Preferred Stock at a face value
of $50 per share  through  a Rule  144A  institutional  private  placement.  The
agreement  reflects an increase in the amount of an offering of Preferred  Stock
announced by the company on March 11, 1998. A private placement of Notes,  which
do not include an equity  component,  was also  announced  on March 11, and that
offering is continuing.

The shares are  convertible  into WinStar  Common Stock at a price of $49.61 per
share,  which is a 25% premium to the closing bid price on March 11,  1998.  The
company  intends  to  use  the  net  proceeds  of the  offering  to  expand  its
telecommunications operations and for general corporate purposes.

The Senior Cumulative Convertible Preferred Stock will not be, and has not been,
registered  under the  Securities  Act of 1933 and may not be offered or sold in
the  United  States  absent   registration  or  an  applicable   exemption  from
registration requirements.

WinStar Communications, Inc. is a national local communications company, serving
business  customers,  long distance  carriers,  fiber-based  competitive  access
providers, mobile communications companies, local telephone companies, and other
customers with broadband local  communications  needs.  The company provides its
Wireless  Fiber(SM)  services  using its  licenses in the 38 GHz  spectrum.  The
company also provides long distance, Internet and information services.

WinStar is a  registered  trademark,  and  Wireless  Fiber is a service  mark of
WinStar Communications, Inc.






<PAGE>









                                  $450,000,000

                          WINSTAR COMMUNICATIONS, INC.


               $200,000,000 10% Senior Subordinated Notes Due 2008

      $250,000,000 11% Senior Subordinated Deferred Interest Notes Due 2008


                               PURCHASE AGREEMENT
                              --------------------

                                                                 March 17, 1998


CREDIT SUISSE FIRST BOSTON CORPORATION
SALOMON BROTHERS INC
MORGAN STANLEY & CO. INCORPORATED
NATIONSBANC MONTGOMERY SECURITIES LLC
   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" or  "WinStar"),  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.$200,000,000  principal amount of the
Issuer's  10% Senior  Subordinated  Notes Due 2008 (the  "Cash-Pay  Notes")  and
U.S.$250,000,000  principal  amount  of the  Issuer's  11%  Senior  Subordinated
Deferred  Interest Notes Due 2008 (the "Deferred  Interest Notes" and,  together
with the Cash-Pay Notes, the "Offered  Securities").  Each of the Cash-Pay Notes
and the Deferred Interest Notes will be issued under a separate indenture,  each
dated as of March 15, 1998 (each, an "Indenture" and together, the "Indentures")
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."


         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) A preliminary  offering  circular and an offering circular relating
to the Offered  Securities to be offered by the Purchasers have been prepared by
the Issuer.  Such preliminary  offering circular and offering circular,  as both
are  supplemented  as of the date of this  Agreement,  together  with any  other
document  approved  by the Issuer for use in  connection  with the  contemplated
resale of the Offered Securities are hereinafter collectively referred to as the
"Offering  Document." On the date of this Agreement,  the Offering Document does
not include any untrue statement of a material


<PAGE>


                                                                           2


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, it being understood and agreed that the
only such  information  is that  described  as such in Section  7(b).  WinStar'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 WinStar with the 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.

         (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  Offering  Document;  and 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 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 Offering Document;  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 of each subsidiary owned by
the  Issuer,  directly  or  through  subsidiaries,  is owned  free  from  liens,
encumbrances   and  defects   other  than  shares  of  the  direct  or  indirect
subsidiaries of WinStar New Media, Inc.

         (d) Each of the Indentures and the  Registration  Rights  Agreement has
been duly authorized; 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), the Indentures and the Registration  Rights
Agreement  will have been duly executed and delivered,  such Offered  Securities
will have been duly  executed,  authenticated,  issued  and  delivered  and will
conform,  in all material respects,  to the description thereof contained in the
Offering Document and the Indentures, the Registration Rights Agreement and such
Offered Securities will constitute valid and legally binding  obligations of the
Issuer,  enforceable  in  accordance  with their terms,  subject to  bankruptcy,
insolvency, fraudulent transfer, reorganization, moratorium and


<PAGE>


                                                                          3


similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles;  and, with respect to the Registration  Rights
Agreement,  except that 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
Offering Document, there are no contracts,  agreements or understandings 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  transactions  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  thereunder,  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  Indentures,  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.

         (i) Except as disclosed in the Offering Document,  and except for liens
on the shares of the direct or indirect subsidiaries of WinStar New Media, Inc.,
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  Offering  Document,  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


<PAGE>


                                                                             4


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  Offering  Document,  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  investigation which might lead to such a
claim.

         (n) Except as disclosed in the Offering Document,  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 any of the Indentures,  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 in the Offering Document present
fairly the financial  position of the Issuer and its  consolidated  subsidiaries
and,  subject to the last  paragraph  of the report of Grant  Thornton  LLP,  of
MIDCOM Communications,  Inc. ("Midcom") 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,  subject to the last  paragraph  of the
report of Grant  Thornton LLP, 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 in the Offering  Document provide a reasonable basis for presenting the
significant effects


<PAGE>


                                                                              5


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 Offering Document, since the date of the
latest audited financial statements included in the Offering Document, 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 the Issuer and its subsidiaries
taken as a whole (it being  understood that the acquisition  from Telesoft Corp.
of its Tier I Internet service provider, the acquisition of substantially all of
the  assets  of  Midcom,  a  change  in the  price  of the  Common  Stock 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 Offering  Document,
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, there under; 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 as described in the Offering Document,  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. automated 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.

         (t)  Except  for  sales to or  through  the  Purchasers  or  affiliates
thereof, 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


<PAGE>


                                                                             6


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 38 GHz portions of the radio spectrum and licenses
granted  to  the  Issuer  or  its  subsidiaries  or  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 has
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,  except that, on March 9, 1998,
several parties filed petitions for reconsideration  (the "Petitions") of the 38
GHz Order (as defined in the Offering  Document)  alleging,  among other things,
that the February 10, 1998 License  grants to the Issuer of additional  channels
in each of Atlanta, Buffalo,  Cincinnati,  Dallas, Houston, Miami, New York, St.
Louis, Seattle, Spokane and Tampa were in violation of the rules of the FCC.

         (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  has any reason to
believe that any of the Licenses will not be renewed in the ordinary course.

         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
$437,062,500.



<PAGE>


                                                                          7


         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 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 March 20,  1998,  or at such  other  time not later  than  seven full
business  days  thereafter  as CSFBC and the Issuer  determine,  such time being
herein  referred to as the "Closing  Date",  against  delivery to the Trustee as
custodian  for DTC of the  Global  Securities  representing  all of the  Offered
Securities.  The Global Securities will be made available for examination at the
offices of Cravath, Swaine & Moore at least 24 hours prior to the Closing Date.

         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 only in accor dance 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  remuneration  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,  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.



<PAGE>


                                                                            8


         (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  Purchasers  or  affiliates  of the other  Purchasers 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 other wise 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,  holding,  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 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


<PAGE>


                                                                             9


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 on the Closing Date 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, the 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  reasonably  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 jurisdiction.

         (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.

         (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


<PAGE>


                                                                           10


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 Indentures,  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
(to the  extent  incurred  by them)  for all  travel  expenses  of the  Issuer's
officers and employees and any other  expenses of the Issuer in connection  with
attending  or  hosting  meetings  with  prospective  purchasers  of the  Offered
Securities from the Purchasers.

         (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.

         (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  applicable  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 the accuracy of the representations and warranties on the part of the
Issuer herein, to the


<PAGE>


                                                                        11


accuracy of the certificates of officers of the Issuer delivered pursuant to the
provisions hereof, to the performance by the Issuer of its obligations hereunder
and to the following additional conditions precedent:

         (a) The Purchasers shall have received a letter, dated the date of this
Agreement,  of Grant  Thornton  LLP, in agreed  form,  confirming  that they are
independent  public accountants within the meaning of the Securities Act and the
applicable published rules and regulations  thereunder ("Rules and Regulations")
and stating to the effect that:

                  (i) in their opinion the financial statements examined by them
         and included in the Offering Document comply as to form in all material
         respects with the applicable accounting  requirements of the Securities
         Act and the related published Rules and Regulations;

                  (ii) on the basis of a reading of the latest available interim
         financial  statements of the Issuer,  inquiries of certain officials of
         the Issuer who have responsibility for financial and accounting matters
         and other  specified  procedures,  nothing came to their attention that
         caused them to believe that:

                           (A) at March 13,  1998,  there was any  change in the
                  capital stock or paid-in  capital,  increase in long-term debt
                  or  any  decreases  in  consolidated  net  current  assets  or
                  stockholders' equity of the Issuer and its subsidiaries,  on a
                  consolidated  basis  as  compared  with  amounts  shown on the
                  December 31, 1997 audited  consolidated balance sheet included
                  in the Offering Document; or

                           (B) for the period from  January 1, 1998 to March 13,
                  1998,   there  were  any  decreases,   as  compared  with  the
                  corresponding  period in the preceding  year, in  consolidated
                  operating revenues or in the total or per-share amounts of net
                  loss;

         except in all cases set forth in clauses (A) and (B) above for changes,
         increases  or  decreases  which the Offering  Document  discloses  have
         occurred or may occur or which are described in such letter; and

                  (iii)  they  have  compared   specified   dollar  amounts  (or
         percentages  derived  from such  dollar  amounts)  and other  financial
         information  contained  in the  Offering  Document (in each case to the
         extent  that such  dollar  amounts,  percentages  and  other  financial
         information are derived from the general  accounting records of WinStar
         and its subsidiaries  subject to the internal  controls of the Issuer's
         accounting system or are derived directly from such records by analysis
         or computation) with the results obtained from inquiries,  a reading of
         such general accounting records and other procedures  specified in such
         letter  and have  found  such  dollar  amounts,  percentages  and other
         financial  information to be in agreement with such results,  except as
         otherwise specified in such letter.

         (b) Subsequent to the execution and delivery of this  Agreement,  there
shall  not  have  occurred  (i) a change  in U.S.  or  international  financial,
political or economic conditions or currency exchange rates or exchange controls
as would,  in the  judgment  of CSFBC,  be likely to  prejudice  materially  the
success of the proposed issue,  sale or distribution of the Offered  Securities,
whether in the primary market or in respect of


<PAGE>


                                                                           12


dealings in the secondary  market, or (ii) (A) any change, or any development or
event  involving a prospective  change,  in the condition  (financial or other),
business,  properties or results of operations of the Issuer or its subsidiaries
which,  in the  judgment  of  CSFBC,  is  material  and  adverse  and  makes  it
impractical  or  inadvisable  to proceed with  completion of the offering or the
sale of and payment  for the  Offered  Securities  (it being  understood  that a
change  in the  price  of the  Issuer's  common  stock  or the  continuation  of
operating losses consistent with the Issuer's historical results shall be deemed
not to be, in and of itself, a material adverse change);  (B) any downgrading in
the rating of any debt  securities of the Issuer by any  "nationally  recognized
statistical  rating  organization" (as defined for purposes of Rule 436(g) under
the Securities Act), or any public  announcement  that any such organization has
under  surveillance  or review its rating of any debt  securities  of the Issuer
(other than an announcement with positive  implications of a possible upgrading,
and  no  implication  of a  possible  downgrading,  of  such  rating);  (C)  any
suspension  or  limitation  of trading in  securities  generally on the New York
Stock  Exchange,  or any setting of minimum prices for trading on such exchange,
or any  suspension of trading of any securities of the Issuer on any exchange or
in the  over-the-counter  market;  (D) any banking  moratorium  declared by U.S.
Federal or New York  authorities;  or (E) any  outbreak or  escalation  of major
hostilities  in which the United States is involved,  any  declaration of war by
Congress  or  any  other  substantial  national  or  international  calamity  or
emergency  if, in the  judgment  of  CSFBC,  the  effect  of any such  outbreak,
escalation,   declaration,   calamity  or  emergency  makes  it  impractical  or
inadvisable  to proceed with  completion  of the offering or sale of and payment
for the Offered Securities.

         (c) The  Purchasers  shall have received an opinion,  dated the Closing
Date, of Graubard Mollen & Miller, counsel for the Issuer,  substantially to the
effect set forth in (i)-(ix) below, and of Willkie Farr & Gallagher,  regulatory
counsel  for the  Issuer,  substantially  to the effect set forth in  (x)-(xvii)
below:

                  (i)  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 Offering Document;

                  (ii)  Each  of the  Indentures  and  the  Registration  Rights
         Agreement has been duly authorized, executed and delivered; the Offered
         Securities have been duly authorized, executed,  authenticated,  issued
         and delivered and conform in all material  respects to the  description
         thereof  contained in the Offering  Document;  and the Indentures,  the
         Offered  Securities and the Registration  Rights  Agreement  constitute
         valid and legally  binding  obligations  of the Issuer  enforceable  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; and, with respect to the Registration Rights
         Agreement,  except that rights to  indemnity  and  contribution  may be
         limited  by  federal  and  state  securities  laws  and  public  policy
         considerations;

                  (iii)  The  Issuer  is not and,  after  giving  effect  to the
         offering and sale of the Offered  Securities and the application of the
         proceeds thereof as described in the Offering Document,  will not be an
         "investment company" as defined in the Investment Company Act;


<PAGE>


                                                                             13


                  (iv) No  consent,  approval,  authorization  or order  of,  or
         filing with, any  governmental  agency or body or any court is required
         for the consummation of the transactions contemplated by this Agreement
         in  connection  with the issuance or sale of the Offered  Securities by
         the  Issuer  and  the  consummation  of  the  transactions   under  the
         Registration Rights Agreement,  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 and the
         transactions  contemplated  thereunder  and such as may be  required by
         securities or blue sky laws of the various  states of the United States
         and of foreign  jurisdictions  in connection with the offer and sale of
         the Offered Securities;

                  (v) The execution, delivery and performance of the Indentures,
         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,  (A) any
         statute,  rule or  regulation or any order known to such counsel of any
         governmental  agency or body or any court having  jurisdiction over the
         Issuer or any  subsidiary of the Issuer or any of its  properties,  (B)
         any agreement or instrument listed as an exhibit to the Issuer's Annual
         Report on Form 10-K most recently  filed with the  Commission or listed
         as an  exhibit  to or filed with any  subsequent  reports  filed by the
         Issuer under the Exchange Act through  December 31, 1997,  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 (C) the charter or by-laws
         of the Issuer or any such subsidiary, except, in the case of clause (A)
         or (B),  breaches,  violations or defaults that  individually or in the
         aggregate would not have a Material Adverse Effect;  and the Issuer has
         full power and  corporate  authority to  authorize,  issue and sell the
         Offered  Securities  to be sold by the Issuer as  contemplated  by this
         Agreement;

                  (vi) Such  counsel have no reason to believe that the Offering
         Document, or any amendment or supplement thereto, as of the date hereof
         and as of  the  Closing  Date,  contained  any  untrue  statement  of a
         material  fact or omitted 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 misleading;  it being
         understood  that  such  counsel  need  express  no  opinion  as to  the
         financial  statements or other financial data contained in the Offering
         Document;

                  (vii) The  descriptions in the Offering  Document of statutes,
         legal and  governmental  proceedings  and contracts and other documents
         are  accurate  in  all  material   respects  and  fairly   present  the
         information purported to be described therein;

                  (viii)  This Agreement has been duly authorized, executed and
         delivered by the Issuer;

                  (ix)  Based  upon  the  accuracy  of the  representations  and
         warranties  of the Issuer set forth in Section  2(t) of this  Agreement
         and of the  Purchasers  in  Section 4 hereof,  it is not  necessary  in
         connection  with  (i) the  offer,  sale  and  delivery  of the  Offered
         Securities by the Issuer to the several Purchasers pursuant


<PAGE>


                                                                            14


         to this Agreement or (ii) the resales of the Offered  Securities by the
         several  Purchasers in the manner  contemplated by this  Agreement,  to
         register the Offered  Securities under the Securities Act other than in
         connection with the Issuer's  obligations under the Registration Rights
         Agreement.

                  (x) No prior or subsequent consent, approval, authorization or
         order of the FCC is required to be obtained, and no prior or subsequent
         notice to or filing with the FCC is required to be made,  in connection
         with  the  offering  of  Offered  Securities  or  the  issuance  of the
         Underlying Shares.

                  (xi) To the best of such counsel's  knowledge,  the Issuer and
         its  subsidiaries  are in compliance in all material  respects with all
         material terms and conditions of each License.

                  (xii)  To the  best of such  counsel's  knowledge,  all of the
         Licenses are currently valid and in full force and effect, and there is
         no investigation,  notice of apparent liability,  violation, forfeiture
         or other order of 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;
         provided,  however,  on February 10, 1998,  the FCC granted  additional
         channels for 38 GHz licenses in the following areas: Atlanta,  Buffalo,
         Cincinnati,  Dallas,  Houston,  Miami,  New York,  St. Louis,  Seattle,
         Spokane and Tampa.  On March 9, 1998,  several  parties filed petitions
         for reconsideration of the 38 GHz Order, alleging,  among other things,
         that the  February  10,  1998,  license  grants to the  Issuer  were in
         violation of the  Commission's  processing  rules,  which Petitions for
         Reconsideration were made available to the public on March 10, 1998. At
         least one of those  parties  stated  that it would be filing a separate
         pleading on this issue.

                  (xii) Such  counsel is not aware of any event or  instance  in
         which the Issuer was not in compliance with all applicable and material
         rules, regulations and policies of the FCC pertaining to the Licenses.

                  (xiv) Such counsel is not aware of the occurrence of any event
         which (i)  results  in, or after  notice or lapse of time or both would
         result in, revocation,  suspension,  adverse modification,  nonrenewal,
         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.

                  (xv) To the best of such counsel's  knowledge,  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 pertaining to
         the Licenses.

                  (xvi) Such  counsel is not aware of any reason to believe that
         any of the Licenses will not be renewed in the ordinary course.



<PAGE>


                                                                           15


                  (xvii) The FCC has the authority, under certain circumstances,
         to modify radio  licenses that it has issued.  On November 3, 1997, the
         FCC adopted rules to auction unlicensed portions of the 38.6 - 40.0 GHz
         band for  commercial  use. On March 24, 1997, the FCC proposed rules to
         segment the 38.6 - 40.0 GHz band for terrestrial wireless services.  In
         either  event,  the FCC may adopt  changes to the existing and proposed
         regulations  governing 38 GHz licensees,  which could have an impact on
         the scope of the  Licenses  and the  operations  of the  Issuer and its
         subsidiaries.  As of the date of such  letter,  and except as otherwise
         discussed in such letter, such counsel is not aware of any official FCC
         action  that  may  permit  or is  likely  to  lead  to the  revocation,
         nonrenewal, modification, impairment, restriction, or suspension of any
         License or any right or authority thereunder in whole or in part.

         (d) The  Purchasers  shall have received from Cravath,  Swaine & Moore,
counsel for 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 Offering Document, 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.

         (e) The Purchasers shall have received a certificate, dated the Closing
Date,  of the Chief  Executive  Officer or any Vice  President  and 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
representations  and  warranties  of the Issuer in this  Agreement  are true and
correct,  that the Issuer has complied  with all  agreements  and  satisfied all
conditions on its part to be performed or satisfied hereunder at or prior to the
Closing Date,  and that,  subsequent  to the dates of the most recent  financial
statements in the Offering  Document 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 the Issuer and its  subsidiaries  taken as a whole  except as set
forth in or  contemplated  by the  Offering  Document  or as  described  in such
certificate (it being understood that the acquisition from Telesoft Corp. of its
Tier I Internet service  provider,  the acquisition of substantially  all of the
assets of Midcom,  a change in the price of the Common Stock 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 Offering Document,  there has been
no dividend or distribution of any kind declared,  paid or made by the Issuer on
any class of its capital stock.

         (f) The  Purchasers  shall have  received a letter,  dated the  Closing
Date, of Grant  Thornton LLP which meets the  requirements  of subsection (a) of
this Section, except that the specified date referred to in such subsection will
be a date not more than five days prior to the Closing  Date for the purposes of
this subsection.

         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.


<PAGE>


                                                                           16


         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 any related preliminary  offering circular,  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  reasonably  incurred  by each
Purchaser in connection with  investigating  or defending any such loss,  claim,
damage,  liability or action as such expenses are incurred;  provided,  however,
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 such Purchaser through CSFBC specifically
for use therein,  it being  understood and agreed that the only such information
consists of the information  described as such in subsection (b) below; provided
further,  however,  that with respect to any untrue  statement or alleged untrue
statement  in or  omission or alleged  omission  from any  preliminary  offering
circular,  the indemnity  agreement  contained in this  subsection (a) shall not
inure to the benefit of any Purchaser that sold the Offered Securities concerned
to the person asserting any such losses, claims, damages or liabilities,  to the
extent that such sale was an initial resale by such Purchaser and any such loss,
claim,  damage or liability of such  Purchaser  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  Offered  Securities  to such  person,  a copy of the  Offering
Document if the Issuer had previously furnished copies thereof to such Purchaser
and such  Offering  Document  corrected  such  untrue  statement  or omission or
alleged untrue statement or omission.

         (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 any related preliminary  offering circular,
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,  it being  understood  and agreed that the only such
information  furnished by any Purchaser consists of the following information in
the Offering Document furnished on behalf of the Purchasers:  the last paragraph
at the  bottom of the cover page  concerning  the terms of the  offering  by the
Purchasers, the legends concerning over-allotments and stabilizing on the inside
front cover page and,  under the caption "Plan of  Distribution,"  (i) the third
sentence of the second paragraph


<PAGE>


                                                                           17


thereunder, (ii) the fourth paragraph thereunder and (iii) the third sentence in
the sixth paragraph thereunder.

         (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 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 (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 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 is unavailable
or  insufficient 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 indemnified party as a result of the losses,  claims, damages or
liabilities referred to in subsection (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


<PAGE>


                                                                           18


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. Default of  Purchasers.  If any Purchaser or  Purchasers  default in
their  obligations to purchase  Offered  Securities  hereunder and the aggregate
number  of shares of  Offered  Securities  that  such  defaulting  Purchaser  or
Purchasers agreed but failed to purchase does not exceed 10% of the total number
of shares of Offered Securities, CSFBC may make arrangements satisfactory to the
Issuer for the purchase of such Offered  Securities by other persons,  including
any of the Purchasers, but if no such arrangements are made by the Closing Date,
the  non-defaulting  Purchasers shall be obligated  severally,  in proportion to
their respective commitments hereunder,  to purchase the Offered Securities that
such defaulting  Purchasers  agreed but failed to purchase.  If any Purchaser or
Purchasers so default and the aggregate  number of shares of Offered  Securities
with respect to which such default or defaults  occur  exceeds 10% of the number
of shares of Offered  Securities and arrangements  satisfactory to CSFBC and the
Issuer for the purchase of such Offered Securities by other persons are not made
within 36 hours  after such  default,  this  Agreement  will  terminate  without
liability on the part of any non-defaulting  Purchaser or the Issuer,  except as
provided in Section 9. As used in this Agreement,  the term "Purchaser" includes
any person  substituted for a Purchaser under this Section.  Nothing herein will
relieve a defaulting Purchaser from liability for its default.

         9. Survival of Certain Representations and Obligations.  The respective
indemnities, agreements, representations, warranties and other statements of the
Issuer  or its  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  its  representatives,  officers  or
directors or any controlling  person,  and will survive  delivery of and payment
for the  Offered  Securities.  If for any reason  the  purchase  of the  Offered
Securities  by the  Purchaser  is  not  consummated,  the  Issuer  shall  remain
responsible  for the  expenses  to be paid or  reimbursed  by them  pursuant  to
Section 5 (other than with respect to a defaulting Purchaser) and the respective
obligations of the Issuer and the Purchasers  pursuant to Section 7 shall remain
in effect.  If the purchase of the Offered  Securities by the  Purchasers is not
consummated  for any reason other than solely because of the termination of this
Agreement pursuant to Section 8 or solely because of the occurrence of any event
specified in clause (C), (D) or (E) of Section 6(b)(ii), the Issuer


<PAGE>


                                                                         19


will reimburse the Purchasers for all out-of-pocket expenses (including fees and
disbursements  of counsel)  reasonably  incurred by them in connection  with the
offering of the Offered Securities.

         10. Notices.  All  communications  hereunder will be in writing and, if
sent to the Purchasers will be mailed,  delivered or telecopied and confirmed to
the  Purchasers,  c/o Credit  Suisse First Boston  Corporation,  Eleven  Madison
Avenue, New York, NY 10010 or, if sent to the Issuer, will be mailed,  delivered
or electronically  transmitted and confirmed to it at 230 Park Avenue, New York,
NY 10169,  Attention:  Timothy Graham;  provided,  however, that any notice to a
Purchaser  pursuant to Section 7 will be mailed,  delivered  or  telecopied  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  hereunder,  except that holders of Offered Securities shall
be entitled to enforce the agreements 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
counterparts,  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  laws of the  State  of New York  without  regard  to
principles of conflicts of laws.

         Each of the parties 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>


                                                                            20


         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
Salomon Brothers Inc
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC

By Credit Suisse First Boston Corporation

         By..........................................
             Name:
             Title:



<PAGE>



                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                            Principal Amount           Principal Amount
                                                              of Cash-Pay                of Deferred
Initial Purchasers                                                Notes                Interest Notes
- ------------------                                       ---------------------       -----------------
<S>                                                     <C>                        <C>             
Credit Suisse First Boston Corporation...............    $    110,000,000           $    137,500,000

Salomon Brothers Inc.................................          60,000,000                 75,000,000

Morgan Stanley & Co. Incorporated....................          20,000,000                 25,000,000

NationsBanc Montgomery Securities LLC................          10,000,000                 12,500,000
                                                               ----------                 ----------

Total................................................    $    200,000,000                250,000,000
                                                              ===========                ===========
</TABLE>



                                       A-1

<PAGE>





        

                                                                 EXECUTION COPY



=============================================================================





                          WINSTAR COMMUNICATIONS, INC.,
                                    as Issuer


                                       and


                    UNITED STATES TRUST COMPANY OF NEW YORK,
                                   as Trustee




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

                                    Indenture

                           Dated as of March 15, 1998
                         -------------------------------


                     10% Senior Subordinated Notes Due 2008




===============================================================================



<PAGE>


                                                                            2




                                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 OF CONTENTS
<TABLE>
<CAPTION>
                                                                                                      Page
                                                                                                    --------

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



                                                ARTICLE ONE

                                DEFINITIONS AND INCORPORATION BY REFERENCE
SECTION 1.01.     Definitions...................................................................         1
SECTION 1.02.     Incorporation by Reference of Trust Indenture Act.............................        17
SECTION 1.03.     Rules of Construction.........................................................        17
SECTION 1.04.     Ranking of the Securities.....................................................        17



                                                ARTICLE TWO

                                              THE SECURITIES
SECTION 2.01.     Form and Dating...............................................................        18
SECTION 2.02.     Execution and Authentication..................................................        18
SECTION 2.03.     Registrar and Paying Agent....................................................        18
SECTION 2.04.     Paying Agent To Hold Money in Trust...........................................        19
SECTION 2.05.     Securityholder Lists..........................................................        19
SECTION 2.06.     Transfer and Exchange.........................................................        19
SECTION 2.07.     Replacement Securities........................................................        20
SECTION 2.08.     Outstanding Securities........................................................        20
SECTION 2.09.     Temporary Securities..........................................................        21
SECTION 2.10.     Cancelation...................................................................        21
SECTION 2.11.     Defaulted Interest............................................................        21
SECTION 2.12.     CUSIP Numbers.................................................................        21



                                               ARTICLE THREE

                                                REDEMPTION
SECTION 3.01.     Right of Redemption...........................................................        22
SECTION 3.02.     Notices to Trustee............................................................        22
SECTION 3.03.     Selection of Securities To Be Redeemed........................................        22
SECTION 3.04.     Notice of Redemption..........................................................        23
SECTION 3.05.     Effect of Notice of Redemption................................................        23
SECTION 3.06.     Deposit of Redemption Price...................................................        24
SECTION 3.07.     Payment of Securities Called for Redemption...................................        24
SECTION 3.08.     Securities Redeemed in Part...................................................        24

</TABLE>


<PAGE>




                                                   ii


<TABLE>

                                               ARTICLE FOUR

                                                 COVENANTS
<S>               <C>                                                                                 <C>
SECTION 4.01.     Payment of Securities.........................................................        24
SECTION 4.02.     Maintenance of Office or Agency...............................................        25
SECTION 4.03.     Limitation on Indebtedness....................................................        25
SECTION 4.04.     Limitation on Senior Subordinated Indebtedness................................        27
SECTION 4.05.     Limitation on Restricted Payments.............................................        28
SECTION 4.06.     Limitation on Dividend and Other Payment Restrictions
                      Affecting Restricted Subsidiaries.........................................        30
SECTION 4.07.     Limitation on the Issuance and Sale of Capital Stock of
                      Restricted Subsidiaries...................................................        32
SECTION 4.08.     Limitation on Issuances of Guarantees by Restricted
                      Subsidiaries..............................................................        32
SECTION 4.09.     Limitation on Transactions with Shareholders and Affiliates...................        32
SECTION 4.10.     Limitation on Asset Sales.....................................................        33
SECTION 4.11.     Repurchase of Securities upon a Change of Control.............................        34
SECTION 4.12.     Existence.....................................................................        35
SECTION 4.13.     Payment of Taxes and Other Claims.............................................        35
SECTION 4.14.     Maintenance of Properties and Insurance.......................................        35
SECTION 4.15.     Notice of Defaults............................................................        36
SECTION 4.16.     Compliance Certificates.......................................................        36
SECTION 4.17.     SEC Reports and Reports to Holders............................................        37
SECTION 4.18.     Waiver of Stay, Extension or Usury Laws.......................................        37



                                               ARTICLE FIVE

                                           SUCCESSOR CORPORATION
SECTION 5.01.     When Company May Merge, Etc...................................................        37
SECTION 5.02.     Successor Substituted.........................................................        38



                                                ARTICLE SIX

                                           DEFAULT AND REMEDIES
SECTION 6.01.     Events of Default.............................................................        38
SECTION 6.02.     Acceleration..................................................................        39
SECTION 6.03.     Other Remedies................................................................        40
SECTION 6.04.     Waiver of Past Defaults.......................................................        40
SECTION 6.05.     Control by Majority...........................................................        41
SECTION 6.06.     Limitation on Suits...........................................................        41
SECTION 6.07.     Rights of Holders to Receive Payment..........................................        42
SECTION 6.08.     Collection Suit by Trustee....................................................        42
SECTION 6.09.     Trustee May File Proofs of Claim..............................................        42
SECTION 6.10.     Priorities....................................................................        42
SECTION 6.11.     Undertaking for Costs.........................................................        43
SECTION 6.12.     Restoration of Rights and Remedies............................................        43

</TABLE>


<PAGE>




                                                   iii


<TABLE>

<S>              <C>                                                                                  <C>
SECTION 6.13.     Rights and Remedies Cumulative................................................        43
SECTION 6.14.     Delay or Omission Not Waiver..................................................        43



                                               ARTICLE SEVEN

                                                  TRUSTEE
SECTION 7.01.     General.......................................................................        44
SECTION 7.02.     Certain Rights of Trustee.....................................................        44
SECTION 7.03.     Individual Rights of Trustee..................................................        45
SECTION 7.04.     Trustee's Disclaimer..........................................................        45
SECTION 7.05.     Notice of Default.............................................................        45
SECTION 7.06.     Reports by Trustee to Holders.................................................        45
SECTION 7.07.     Compensation and Indemnity....................................................        45
SECTION 7.08.     Replacement of Trustee........................................................        46
SECTION 7.09.     Successor Trustee by Merger, Etc..............................................        47
SECTION 7.10.     Eligibility...................................................................        47
SECTION 7.11.     Money Held in Trust...........................................................        47
SECTION 7.12.     Withholding Taxes.............................................................        47



                                               ARTICLE EIGHT

                                          DISCHARGE OF INDENTURE
SECTION 8.01.     Termination of Company's Obligations..........................................        48
SECTION 8.02.     Defeasance and Discharge of Indenture.........................................        48
SECTION 8.03.     Defeasance of Certain Obligations.............................................        50
SECTION 8.04.     Application of Trust Money....................................................        52
SECTION 8.05.     Repayment to Company..........................................................        52
SECTION 8.06.     Reinstatement.................................................................        53
SECTION 8.07.     Insiders......................................................................        53



                                               ARTICLE NINE

                                    AMENDMENTS, SUPPLEMENTS AND WAIVERS
SECTION 9.01.     Without Consent of Holders....................................................        53
SECTION 9.02.     With Consent of Holders.......................................................        53
SECTION 9.03.     Revocation and Effect of Consent..............................................        54
SECTION 9.04.     Notation on or Exchange of Securities.........................................        55
SECTION 9.05.     Trustee to Sign Amendments, Etc...............................................        55
SECTION 9.06.     Conformity with Trust Indenture Act...........................................        55



                                                ARTICLE TEN

                                               SUBORDINATION
SECTION 10.01.        Securities Subordinate to Senior Indebtedness.............................        55
</TABLE>



<PAGE>




                                                   iv


<TABLE>
<S>                  <C>                                                                              <C>
SECTION 10.02.        No Payment on Securities in Certain Circumstances.........................        56
SECTION 10.03.        Payment Over of Proceeds Upon Dissolution, Etc............................        57
SECTION 10.04.        Subrogation of Holders to Rights of Holders of
                             Senior Indebtedness................................................        58
SECTION 10.05.        Obligations of Company Unconditional......................................        59
SECTION 10.06.        Payments May Be Made Prior to Dissolution.................................        59
SECTION 10.07.        No Waiver of Subordination Provisions.....................................        59
SECTION 10.08.        Authorization to Trustee to Take Action to Effectuate
                             Subordination......................................................        60
SECTION 10.09.        Senior Indebtedness May Be Renewed or Extended, Etc.......................        60
SECTION 10.10.        Trustee to Have No Fiduciary Duty to Holders of Senior
                             Indebtedness.......................................................        60
SECTION 10.11.        Rights of Trustee as Holder of Senior Indebtedness........................        60
SECTION 10.12.        Notice to Trustee.........................................................        60
SECTION 10.13.        Reliance on Judicial Order or Certificate of Liquidating
                             Agent..............................................................        61
SECTION 10.14.        Not to Prevent Events of Default..........................................        61
SECTION 10.15.        Trustee's Compensation Not Prejudiced.....................................        61



                                              ARTICLE ELEVEN

                                               MISCELLANEOUS
SECTION 11.01.        Trust Indenture Act of 1939...............................................        62
SECTION 11.02.        Notices...................................................................        62
SECTION 11.03.        Certificate and Opinion as to Conditions Precedent........................        63
SECTION 11.04.        Statements Required in Certificate or Opinion.............................        63
SECTION 11.05.        Rules by Trustee, Paying Agent or Registrar...............................        63
SECTION 11.06.        Payment Date Other Than a Business Day....................................        63
SECTION 11.07.        Governing Law.............................................................        64
SECTION 11.08.        No Adverse Interpretation of Other Agreements.............................        64
SECTION 11.09.        No Recourse Against Others................................................        64
SECTION 11.10.        Successors................................................................        64
SECTION 11.11.        Duplicate Originals.......................................................        64
SECTION 11.12.        Separability..............................................................        64
SECTION 11.13.        Table of Contents, Headings, Etc..........................................        64

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


</TABLE>



<PAGE>


                                  



                  INDENTURE,  dated  as  of  March  15,  1998,  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 10%
Senior  Subordinated Notes Due 2008 (the "Initial  Securities") and, if and when
issued pursuant to a registered exchange for Initial  Securities,  the Company's
10% Senior  Subordinated Notes Due 2008 (the "Exchange  Securities") and, if and
when issued pursuant to a private exchange for Initial Securities, the Company's
10%  Senior  Subordinated  Notes Due 2008 (the  "Private  Exchange  Securities,"
together  with  the  Exchange  Securities  and  the  Initial   Securities,   the
"Securities"):


                                   ARTICLE ONE

            DEFINITIONS AND INCORPORATION BY REFERENCE

            SECTION 1.01.  Definitions.

            "1995 Notes" means the 1995 Senior Notes and the Convertible Notes.

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

            "1995 Senior Notes" means the 14% Senior Discount Notes Due 2005 of
the Company.

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

            "1997 Senior Subordinated Notes" means the 15% Senior Subordinated
Deferred Interest Notes Due 2007 of the Company.

                  "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


<PAGE>


                                                                           2

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 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.

                  "Allocated Proceeds" has the meaning provided in Section 4.05.

                  "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.



<PAGE>


                                                                              3

                  "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 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; (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.

                  "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 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.


<PAGE>


                                                                             4

                  "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 Issue 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 Issue 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.

                  "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


<PAGE>


                                                                            5

shares of outstanding Common Stock of such Restricted Subsidiary on the last day
of such period.

                  "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 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  Deferred  Interest  Notes,  the
Convertible Preferred Stock, the 1997 Senior Subordinated Notes, the 1997 Notes,
the WSAC Loan and the  Exchangeable  Preferred  Stock,  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.

                  "Convertible Preferred Stock" means the Series D 7% Senior 
Cumulative Convertible Preferred Stock Due 2010 of the Company.



<PAGE>


                                                                              6

                  "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 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.

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

                  "Deemed Closing Date" means March 18, 1997.

                  "Deferred Interest Notes" means the 11% Senior Subordinated 
Deferred Interest Notes Due 2008 of the Company.

                  "Deferred Interest Notes Indenture" means the Indenture, dated
as of March 15, 1998, between the Company and United States Trust Company of New
York, pursuant to which the Deferred Interest Notes were issued.

                  "Designated Senior  Indebtedness" means the 1995 Senior Notes,
the 1997 Senior  Notes,  the  Equipment  Note  Guarantees  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."

                  "Equipment Notes" means the $200,000,000 of 12 1/2% Guaranteed
Senior Secured Notes Due 2004 of WEC and the  $50,000,000 of 12 1/2%  Guaranteed
Senior Secured Notes Due 2004 of WEC II.

                  "Equipment Note Guarantees"  means the Guarantees  provided by
the Company with respect to the Equipment Notes.

                  "Exchange  Debentures"  means the 14 1/4% Senior  Subordinated
Deferred  Interest  Notes Due 2007 of the Company  issuable in exchange  for the
Exchangeable Preferred Stock.

                  "Exchangeable Preferred Stock" means the Series C 14 1/4% 
Senior Cumulative Exchangeable Preferred Stock Due 2007 of the Company.

                  "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


<PAGE>


                                                                             7

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 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 Deferred  Interest Notes, the Convertible  Preferred Stock, the
1997  Senior  Subordinated  Notes,  the  1997  Notes,  the  WSAC  Loan  and  the
Exchangeable  Preferred  Stock  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"  means  the  Person  in  whose  name  a  Security  is
registered on the books of the registrar for the Security.

                  "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  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


<PAGE>

                                                                            8

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 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 March 15 and September 15 of each year, commencing September 15, 1998.

                  "Interest Rate  Agreement"  means any interest rate protection
agreement,  interest  rate future  agreement,  interest  rate option  agreement,
interest rate swap


<PAGE>


                                                                            9

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  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).

                  "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 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


<PAGE>


                                                                            10

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 thereof that is 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  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 the  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


<PAGE>


                                                                           11

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

                  "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


<PAGE>


                                                                             12

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

                  "Permitted Investor" means Mr. 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 Deemed  Closing  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 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.

                  "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.



<PAGE>


                                                                          13

                  "Regular Record Date" for the interest payable on any Interest
Payment  Date means March 1 or September 1 (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 Issue Date or thereafter Incurred:  (i) all
Indebtedness  and all other  monetary  obligations of the Company under the 1995
Senior Notes, the 1997 Senior Notes, and the Equipment Note Guarantees, (ii) all
other  Indebtedness  of the Company  (other than the  Securities,  the  Deferred
Interest Notes, the 1997 Senior  Subordinated Notes, the Exchange Debentures 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 1995 Senior  Notes,  the 1997
Senior  Notes  and the  Equipment  Note  Guarantees  (including  any  agreements
pursuant to which the 1995 Senior Notes,  the 1997 Senior Notes or the Equipment
Note  Guarantees  were  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


<PAGE>


                                                                            14

other  taxes  owed or owing by the  Company  or (g) any  trade  payables  of the
Company.  Senior Indebtedness of the Company will 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 and the Deferred Interest Notes,
payable pursuant to the terms of the Securities and the Deferred  Interest Notes
or upon  acceleration,  to the extent relating to the purchase of Securities and
the Deferred Interest Notes or amounts corresponding to such principal, premium,
if any, or interest on the Securities and the Deferred Interest Notes.

                  "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  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)  WinStar   Gateway
Network, Inc., WinStar Wireless, Inc., WinStar Telecommunications, Inc., WinStar
Milliwave,  Inc., WinStar Locate, Inc. and WinStar Wireless Fiber Corp., and, in
each case, its


<PAGE>


                                                                            15

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  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


<PAGE>


                                                                             16

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 greater than $1,000, 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.

               "WEC" means WinStar Equipment Corp. and its successors.

               "WEC II" means WinStar Equipment II Corp. and its successors.

               "WSAC" means WinStar Switch Acquisition Corp. and its successors.

               "WSAC  Credit  Agreement"  means the Credit Agreement dated as of
October 17, 1997,  among WSAC,  the Lenders named  therein,  Credit Suisse First
Boston,  as documentation  agent, and Salomon Brothers Inc, as syndication agent
and collateral and administrative agent, as in effect from time to time.



<PAGE>


                                                                         17

                  "WSAC Loan" means all  Indebtedness  and other  obligations of
WSAC arising in connection with the WSAC Credit Agreement.

                  "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 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

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



<PAGE>


                                                                            18

                  SECTION 1.04. Ranking of the Securities.  The Securities shall
rank pari passu with the Convertible Notes, the 1997 Senior  Subordinated Notes,
the Exchange Debentures and the Deferred Interest 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.

                  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  $200,000,000)  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
appoint ment, an authenticating  agent may authenticate  Securities whenever the
Trustee may do so. Each  reference in this  Indenture to  authentication  by the
Trustee includes authen tication by such agent. An authenticating  agent has the
same rights as any Registrar or Paying Agent.



<PAGE>


                                                                          19

                  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  Security  holders or the Trustee all money held by the
Paying Agent for the payment of principal 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


<PAGE>


                                                                           20

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 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  cancelation  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


<PAGE>


                                                                            21

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.

                  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. Cancelation. The Company at any time may deliver
Securities  to the Trustee for  cancelation.  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
cancelation 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 cancelation.

                  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;   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.




<PAGE>


                                                                             22

                                  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 15,  2003 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  principal  amount  of  the
Securities),  plus accrued and unpaid  interest,  if any, 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 15 of the years set forth below:


                 Year                             Redemption Price
               -------                            ----------------
                 2003                                 105.000%
                 2004                                 103.333
                 2005                                 101.667
                 2006 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.

                  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.


<PAGE>


                                                                            23

                  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;

                  (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


<PAGE>


                                                                         24

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 cancelation.

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



<PAGE>


                                                                          25

                  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.

                  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 $200,000,000,  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 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


<PAGE>


                                                                             26

         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  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  March 1, 1998  (less  the  amount of any such Net Cash
         Proceeds the receipt of which  permitted the Company or any  Restricted
         Subsidiary to make any  Restricted  Payment,  including any  Restricted
         Payment  described in the second paragraph under Section 4.05) 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 at least to the extent that the Securities are  subordinated
         to Senior Indebtedness;


<PAGE>


                                                                           27

                  (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;

                (vii) 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); and

                  (ix)Indebtedness  of the  Company,  to the extent the proceeds
         thereof  are  immediately  used to purchase  the 1995  Notes,  the 1997
         Notes, the 1997 Senior Subordinated Notes, the Exchange Debentures, the
         Securities  or the  Deferred  Interest  Notes  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 of
the  Company  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 10; provided,  however, that the foregoing limitation shall not apply to
distinctions between categories of Senior Indebtedness of the Company that exist
by reason of any Liens or  Guarantees  arising or created in respect of some but
not all  Senior  Indebtedness  of the  Company  or (ii)  Incur any  Indebtedness
secured  by a Lien  if  such  Indebtedness  is not  Senior  Indebtedness  of the
Company, unless


<PAGE>


                                                                            28

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)  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 (less the amount of such Net Cash
Proceeds the receipt of which served as the basis on which the Company  Incurred
Indebtedness  pursuant to clause (v) of the second  paragraph under Section 4.03
or pursuant to any similar provision  contained in the indenture relating to the
1995  Senior  Notes as in  effect  on the  Deemed  Closing  Date  (such Net Cash
Proceeds being herein called  "Allocated  Proceeds")) 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  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


<PAGE>


                                                                          29

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.

                  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;

                  (iiithe 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 (other than
         Allocated Proceeds),  of a substantially  concurrent sale of, shares of
         Capital  Stock or  options,  warrants or other  rights to acquire  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  (other than  Allocated  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 $30,000,000 at any one time 
         outstanding;

                 (vii) Investments,  not  to  exceed  $30,000,000  at any  one  
          time  outstanding,  in  entities,  substantially  all of the assets of
          which consist of Telecommunications Assets;

                  (vii)(A) cash  payments in lieu of the issuance of fractional
         shares of Common Stock upon conversion (including mandatory conversion)
         of  the  Convertible  Notes  provided  for  in  the  Convertible  Notes
         Indenture and (B) cash payments on the Convertible Notes required to be
         made under the  provisions  of the  Convertible  Notes  Indenture  that
         relate to repurchases of Convertible Notes upon a change of control and
         that relate to limitations on sales of assets;



<PAGE>


                                                                             30

                  (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 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;

                   (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; and

                  (xi)the redemption of the shares of Exchangeable Preferred 
         Stock upon mandatory redemption on December 15, 2007;

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 the Securities or such 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;

                  (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;



<PAGE>


                                                                            31

                (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  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  (A)  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 (B) creating, incurring, assuming or suffering to exist
         any Liens otherwise permitted pursuant to the indenture relating to the
         1997 Senior Notes as in effect on the Deemed Closing Date.



<PAGE>

                                                                            32

                  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;

                  (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 (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


<PAGE>


                                                                             33

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  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  (or series of related
transactions) with any Unrestricted Subsidiary covered by the first paragraph of
this Section 4.09 and not covered by clauses (i) through (v) of this  paragraph,
the aggregate amount of which does not exceed $250,000 in value in any year will
not be  covered  by this  Section  4.09  and,  if the  aggregate  value  of such
transaction  exceeds  $250,000 in any year,  will not be covered by this Section
4.09 if such  transaction  has been  determined  by the Board of Directors to be
fair to the Company.

                  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 Issue 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


<PAGE>


                                                                             34

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 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 and from the holders
of the Deferred Interest Notes on a pro rata basis an aggregate principal amount
of Securities and Deferred  Interest Notes equal to the Excess  Proceeds on such
date of purchase,  at a purchase price equal to 101% of the principal  amount of
such Securities or the principal  amount of the Deferred  Interest Notes on such
date of purchase,  plus accrued and unpaid  interest (if any) on such  principal
amount of Securities or of Deferred  Interest Notes, as the case may be, to such
date of purchase; provided, however, that no Offer to Purchase shall be required
to be commenced  with respect to the  Securities or the Deferred  Interest Notes
until the Business Day  following  the payment date with respect to the Offer to
Purchase  any 1997  Notes  and  need not be  commenced  if the  Excess  Proceeds
remaining after application thereof to the 1997 Notes purchased in such Offer to
Purchase  applicable  thereto  are  less  than  $10,000,000;  provided  further,
however,  that no Securities or Deferred  Interest Notes may be purchased  under
this  Section  4.10  unless  the  Company  shall have  purchased  all 1997 Notes
tendered pursuant to such 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 principal  amount of the
Securities on the date of purchase, plus accrued and unpaid interest (if any) on
such  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 Deferred Interest Notes, the 1997 Senior
Subordinated  Notes, the Exchange Debentures and the Convertible Notes) pursuant
to this Section 4.11 until it has  repurchased  all of the 1995 Senior Notes and
the 1997 Senior Notes and has caused each of WEC and WEC II to repurchase all of
the WEC  Equipment  Notes and WEC II  Equipment  Notes,  respectively,  tendered
pursuant  to any  Offer to  Purchase  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


<PAGE>


                                                                           35

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  this
Section  4.11.  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
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


<PAGE>


                                                                            36

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)  Beginning  with
respect to the fiscal year ended December 31, 1998, 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
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) Beginning  with respect to the fiscal year ended  December
31,  1998,  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.



<PAGE>


                                                                            37

                  (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 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;



<PAGE>


                                                                          38

                  (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

                  (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  principal  of (or
         premium, if any, on) any Security when the same becomes due and payable
         at maturity, upon acceleration, redemption or otherwise, whether or not
         such payment is prohibited by 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 10;



<PAGE>


                                                                             39

                  (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 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 (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.

                  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


<PAGE>


                                                                            40

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 (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


<PAGE>


                                                                            41

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 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.



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                                                                         42

                  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 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;

                    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


<PAGE>


                                                                          43

               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.

                  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.




<PAGE>


                                                                             44

                                  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;

                  (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;



<PAGE>


                                                                           45

                  (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.

                  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, 1999, 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


<PAGE>


                                                                           46

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.

                  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


<PAGE>


                                                                            47

effective and (iii) the successor Trustee shall have all the rights,  powers and
duties of 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  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.




<PAGE>


                                                                           48

                                  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  cancelation  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.

                  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


<PAGE>


                                                                            49

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;

                  (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


<PAGE>


                                                                           50

         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;

                  (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


<PAGE>


                                                                           51

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  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  commenced by or against the
         Company under either such statute,  and either (1) the trust funds will
         no longer


<PAGE>


                                                                           52

         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 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.



<PAGE>


                                                                             53

                  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
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


<PAGE>


                                                                            54

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);

                     (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.



<PAGE>


                                                                             55

                  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 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.


                                   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


<PAGE>


                                                                            56

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, the 1997 Senior
Subordinated Notes, the Exchange Debentures and the Deferred Interest 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 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


<PAGE>


                                                                           57

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 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


<PAGE>


                                                                         58

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,  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
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.



<PAGE>


                                                                    59

                  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  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


<PAGE>


                                                                          60

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.

                  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


<PAGE>


                                                                        61

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.

                  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>


                                                                          62

                                 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.

                  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


<PAGE>


                                                                            63

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, 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.



<PAGE>


                                                                            64

                  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;  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.

          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.


<PAGE>


                                                                           65



                  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, as Trustees


                                   By:__________________________
                                      Name:
                                      Title:




<PAGE>


                                      EA-1

                                                                    EXHIBIT A





                [FACE OF EXCHANGE NOTE OR PRIVATE EXCHANGE NOTE]

*/
**/

                          WINSTAR COMMUNICATIONS, INC.

                      10% Senior Subordinated Note Due 2008

                                                      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 15, 2008.

                  Interest Payment Dates:  March 15 and September 15, commencing
September 15, 1998.

                  Regular Record Dates:  March 1 and September 1.

                  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.


<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 10% Senior  Subordinated Notes Due 2008 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.

                      10% Senior Subordinated Note Due 2008

1.  Principal and Interest.

                  The Company  will pay the  principal of this Note on March 15,
2008.

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

                  Interest  will be  payable  semiannually  (to the  holders  of
record of the  Notes at the close of  business  on the March 1 and  September  1
immediately  preceding  the relevant  Interest  Payment  Date) on each  Interest
Payment Date, commencing September 15, 1998.

                  Interest  on the  Notes  will  accrue  from  the  most  recent
Interest Payment Date; provided,  however, that, if there is no existing default
in the  payment of  interest  and this Note is  authenticated  between a Regular
Record  Date  referred to on the face  hereof and the next  succeeding  Interest
Payment Date,  interest shall accrue from such Interest  Payment Date.  Interest
will be computed on the basis of a 360-day year of twelve 30-day months.

                  Notwithstanding  the above, (i) if a Registration  Default (as
defined in the Registration  Rights Agreement) occurs,  additional interest will
accrue on this Note at a rate of 0.50% per annum 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.

                  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  principal  amount of the Notes as provided
above on each March 15 and September 15,  commencing  September 15, 1998, to the
persons who are Holders (as reflected in the Security  Register) at the close of
business  on the March 1 or  September  1  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if  the  Note  is  canceled  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.


<PAGE>


                                      EA-4

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
March  15,  1998  (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.

                  The Indenture limits the original  aggregate  principal amount
of the Notes to $200,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The Notes  will not be  redeemable  prior to March  15,  2003.
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 principal  amount of the Notes),  plus accrued
and unpaid  interest,  if any, on such 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 15 of the
years set forth below:

                  Year                        Redemption Price
                  ----                        ----------------
                  2003                            105.000%
                  2004                            103.333
                  2005                            101.667
                  2006 and thereafter             100.000


<PAGE>


                                      EA-5


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  principal  amount  of such  Notes on such  date of  purchase,  plus
accrued and unpaid interest, if any, on such 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>


                                      EA-6

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 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


<PAGE>


                                      EA-7

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 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-8

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 (= 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.



<PAGE>


                                      EA-9

                  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-10

                                 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 _________________________________________***/




- -----------------------------------
     ***  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-11

                       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: _________________________________________****/





- ----------------------------
     **** 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, 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:

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

                  "Exchange  Securities" means the 10% Senior Subordinated Notes
Due 2008 to be issued pursuant to this Indenture in connection with a Registered
Exchange Offer pursuant to the Registration Rights Agreement.

             "Initial Purchasers" means Credit Suisse First Boston Corporation,
Salomon Brothers Inc, Morgan Stanley & Co. Incorporated and NationsBanc
Montgomery Securities LLC.

                  "Initial  Securities" means the 10% Senior  Subordinated Notes
Due 2008, issued under this Indenture on or about the date hereof.

                  "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   10%   Senior
Subordinated  Notes  Due 2008 to be issued  pursuant  to this  Indenture  to the
Initial Purchasers in a Private Exchange.

                  "Purchase  Agreement" means the Purchase Agreement dated March
17, 1998, 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.



<PAGE>


                                                                          A-2

                  "Registration Rights Agreement" means the Registration Rights
Agreement dated March 17, 1998, 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.


         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.


<PAGE>


                                                                         A-3

                  (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  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.

         2.2  Authentication.  The Trustee shall  authenticate and deliver:  (1)
Initial  Securities  for  original  issue in an  aggregate  principal  amount of
$200,000,000  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 $200,000,000 except
as provided in Section 2.07 of this Indenture.

         2.3  Transfer  and  Exchange.  (a)  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.


<PAGE>


                                                                          A-4

                  (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 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.

                  (b)  Legend.

                  (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)
                  OUTSIDE THE UNITED STATES IN A 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) OR (IV) PURSUANT TO AN
                  EFFECTIVE  REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN
                  EACH  OF  CASES  (I)  THROUGH  (IV)  IN  ACCORDANCE  WITH  ANY
                  APPLICABLE SECURITIES LAWS OF ANY STATE OF THE


<PAGE>


                                                                           A-5

                  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.

                  (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, 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  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.

                  (c) Cancelation 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


<PAGE>


                                                                          A-6

returned to the  Depositary  for  cancelation  or retained  and  canceled by the
Trustee. At any time prior to such cancelation,  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.

                  (d)  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  Security
         selected for  redemption  in whole or in part pursuant to Article Three
         of this Indenture,  except the unredeemed  portion of any  certificated
         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.

                  (e)  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
         owner or other Person (other than the Depositary) of any


<PAGE>


                                                                         A-7

         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  Indenture 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 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


<PAGE>


                                                                          A-8

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.

                  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) OUTSIDE THE
UNITED STATES IN A 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) OR (IV) PURSUANT TO AN EFFECTIVE
REGISTRATION  STATEMENT  UNDER THE SECURITIES  ACT, IN EACH OF CASES (I) THROUGH
(IV) 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


<PAGE>


                                                                            EI-2

ANY PURCHASER OF THIS SECURITY FROM IT OF THE RESALE RESTRICTIONS REFERRED TO IN
(A) ABOVE.


<PAGE>


                                                                           EI-3

                          WINSTAR COMMUNICATIONS, INC.

                      10% Senior Subordinated Note Due 2008

                                                             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 15,
2008.

                  Interest Payment Dates:  March 15 and September 15, commencing
September 15, 1998.

                  Regular Record Dates:  March 1 and September 1.

                  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 10% Senior  Subordinated Notes Due 2008 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.

                      10% Senior Subordinated Note Due 2008

1.  Principal and Interest.

                  The Company  will pay the  principal of this Note on March 15,
2008.

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

                  Interest  will be  payable  semiannually  (to the  holders  of
record of the  Notes at the close of  business  on the March 1 and  September  1
immediately  preceding  the relevant  Interest  Payment  Date) on each  Interest
Payment Date, commencing September 15, 1998.

                  Interest  on the  Notes  will  accrue  from  the  most  recent
Interest Payment Date; provided,  however, that, if there is no existing default
in the  payment of  interest  and this Note is  authenticated  between a Regular
Record  Date  referred to on the face  hereof and the next  succeeding  Interest
Payment Date,  interest shall accrue from such Interest  Payment Date.  Interest
will be computed on the basis of a 360-day year of twelve 30-day months.

                  Notwithstanding  the above, (i) if a Registration  Default (as
defined in the Registration  Rights Agreement) occurs,  additional interest will
accrue on this Note at a rate of 0.50% per annum 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.

                  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  principal  amount of the Notes as provided
above on each March 15 and September 15,  commencing  September 15, 1998, to the
persons who are Holders (as reflected in the Security  Register) at the close of
business  on the March 1 or  September  1  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if  the  Note  is  canceled  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.


<PAGE>


                                                                         EI-6

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
March  15,  1998  (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.

                  The Indenture limits the original  aggregate  principal amount
of the Notes to $200,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The Notes  will not be  redeemable  prior to March  15,  2003.
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 principal  amount of the Notes),  plus accrued
and unpaid  interest,  if any, on such 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 15 of the
years set forth below:

                           Year                     Redemption Price
                           ----                     ----------------
                           2003                         105.000%
                           2004                         103.333
                           2005                         101.667
                           2006 and thereafter          100.000


<PAGE>


                                                                         EI-7


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  principal  amount  of such  Notes on such  date of  purchase,  plus
accrued and unpaid interest, if any, on such 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-8

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 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


<PAGE>


                                                                           EI-9

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 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>


                                                                          EI-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 (= 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.



<PAGE>


                                                                         EI-11

                  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-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 _______________________________________*/

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 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


- ------------------
     *  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-13

         (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
         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


<PAGE>


                                                                       EI-14

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-15

                      [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>
<S>         <C>                       <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-16

                       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: ____________________________ **/



- ------------------------------------------
     ** 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>



                                                                EXECUTION COPY













===============================================================================



                          WINSTAR COMMUNICATIONS, INC.,
                                    as Issuer


                                       and


                    UNITED STATES TRUST COMPANY OF NEW YORK,
                                   as Trustee





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


                                    Indenture

                           Dated as of March 15, 1998
                             ----------------------


            11% Senior Subordinated Deferred Interest Notes Due 2008



==============================================================================


<PAGE>


                                                                           2



                              CROSS-REFERENCE TABLE
                              ----------------------





TIA Sections                                           Indenture Sections

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










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

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


<PAGE>






                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                                      Page

<S>              <C>                                                                                  <C>

RECITALS OF THE COMPANY.........................................................................         1



                                                ARTICLE ONE

                                DEFINITIONS AND INCORPORATION BY REFERENCE
SECTION 1.01.     Definitions...................................................................         1
SECTION 1.02.     Incorporation by Reference of Trust Indenture Act.............................        18
SECTION 1.03.     Rules of Construction.........................................................        18
SECTION 1.04.     Ranking of the Securities.....................................................        19



                                                ARTICLE TWO

                                              THE SECURITIES
SECTION 2.01.     Form and Dating...............................................................        19
SECTION 2.02.     Execution and Authentication..................................................        19
SECTION 2.03.     Registrar and Paying Agent....................................................        20
SECTION 2.04.     Paying Agent To Hold Money in Trust...........................................        20
SECTION 2.05.     Securityholder Lists..........................................................        20
SECTION 2.06.     Transfer and Exchange.........................................................        20
SECTION 2.07.     Replacement Securities........................................................        21
SECTION 2.08.     Outstanding Securities........................................................        21
SECTION 2.09.     Temporary Securities..........................................................        22
SECTION 2.10.     Cancelation...................................................................        22
SECTION 2.11.     Defaulted Interest............................................................        22
SECTION 2.12.     CUSIP Numbers.................................................................        22



                                               ARTICLE THREE

                                                REDEMPTION
SECTION 3.01.     Right of Redemption...........................................................        23
SECTION 3.02.     Notices to Trustee............................................................        23
SECTION 3.03.     Selection of Securities To Be Redeemed........................................        23
SECTION 3.04.     Notice of Redemption..........................................................        24
SECTION 3.05.     Effect of Notice of Redemption................................................        24
SECTION 3.06.     Deposit of Redemption Price...................................................        25
SECTION 3.07.     Payment of Securities Called for Redemption...................................        25
SECTION 3.08.     Securities Redeemed in Part...................................................        25

</TABLE>


<PAGE>




                                                   ii



<TABLE>
<CAPTION>


                                               ARTICLE FOUR

                                                 COVENANTS                                             Page

<S>               <C>                                                                                 <C>
SECTION 4.01.     Payment of Securities.........................................................        25
SECTION 4.02.     Maintenance of Office or Agency...............................................        26
SECTION 4.03.     Limitation on Indebtedness....................................................        26
SECTION 4.04.     Limitation on Senior Subordinated Indebtedness................................        28
SECTION 4.05.     Limitation on Restricted Payments.............................................        29
SECTION 4.06.     Limitation on Dividend and Other Payment Restrictions
                      Affecting Restricted Subsidiaries.........................................        31
SECTION 4.07.     Limitation on the Issuance and Sale of Capital Stock of
                      Restricted Subsidiaries...................................................        33
SECTION 4.08.     Limitation on Issuances of Guarantees by Restricted
                      Subsidiaries..............................................................        33
SECTION 4.09.     Limitation on Transactions with Shareholders and Affiliates...................        33
SECTION 4.10.     Limitation on Asset Sales.....................................................        34
SECTION 4.11.     Repurchase of Securities upon a Change of Control.............................        35
SECTION 4.12.     Existence.....................................................................        36
SECTION 4.13.     Payment of Taxes and Other Claims.............................................        36
SECTION 4.14.     Maintenance of Properties and Insurance.......................................        36
SECTION 4.15.     Notice of Defaults............................................................        37
SECTION 4.16.     Compliance Certificates.......................................................        37
SECTION 4.17.     SEC Reports and Reports to Holders............................................        38
SECTION 4.18.     Waiver of Stay, Extension or Usury Laws.......................................        38



                                               ARTICLE FIVE

                                           SUCCESSOR CORPORATION
SECTION 5.01.     When Company May Merge, Etc...................................................        38
SECTION 5.02.     Successor Substituted.........................................................        39



                                                ARTICLE SIX

                                           DEFAULT AND REMEDIES
SECTION 6.01.     Events of Default.............................................................        39
SECTION 6.02.     Acceleration..................................................................        40
SECTION 6.03.     Other Remedies................................................................        41
SECTION 6.04.     Waiver of Past Defaults.......................................................        41
SECTION 6.05.     Control by Majority...........................................................        42
SECTION 6.06.     Limitation on Suits...........................................................        42
SECTION 6.07.     Rights of Holders to Receive Payment..........................................        42
SECTION 6.08.     Collection Suit by Trustee....................................................        43
SECTION 6.09.     Trustee May File Proofs of Claim..............................................        43
SECTION 6.10.     Priorities....................................................................        43
SECTION 6.11.     Undertaking for Costs.........................................................        44
</TABLE>


<PAGE>




                                                   iii


<TABLE> 
                                                                                                       Page
<S>              <C>                                                                                   <C>
SECTION 6.12.     Restoration of Rights and Remedies............................................        44
SECTION 6.13.     Rights and Remedies Cumulative................................................        44
SECTION 6.14.     Delay or Omission Not Waiver..................................................        44



                                               ARTICLE SEVEN

                                                  TRUSTEE
SECTION 7.01.     General.......................................................................        44
SECTION 7.02.     Certain Rights of Trustee.....................................................        45
SECTION 7.03.     Individual Rights of Trustee..................................................        46
SECTION 7.04.     Trustee's Disclaimer..........................................................        46
SECTION 7.05.     Notice of Default.............................................................        46
SECTION 7.06.     Reports by Trustee to Holders.................................................        46
SECTION 7.07.     Compensation and Indemnity....................................................        46
SECTION 7.08.     Replacement of Trustee........................................................        47
SECTION 7.09.     Successor Trustee by Merger, Etc..............................................        48
SECTION 7.10.     Eligibility...................................................................        48
SECTION 7.11.     Money Held in Trust...........................................................        48
SECTION 7.12.     Withholding Taxes.............................................................        48



                                               ARTICLE EIGHT

                                          DISCHARGE OF INDENTURE
SECTION 8.01.     Termination of Company's Obligations..........................................        48
SECTION 8.02.     Defeasance and Discharge of Indenture.........................................        49
SECTION 8.03.     Defeasance of Certain Obligations.............................................        51
SECTION 8.04.     Application of Trust Money....................................................        53
SECTION 8.05.     Repayment to Company..........................................................        53
SECTION 8.06.     Reinstatement.................................................................        53
SECTION 8.07.     Insiders......................................................................        53



                                               ARTICLE NINE

                                    AMENDMENTS, SUPPLEMENTS AND WAIVERS
SECTION 9.01.     Without Consent of Holders....................................................        54
SECTION 9.02.     With Consent of Holders.......................................................        54
SECTION 9.03.     Revocation and Effect of Consent..............................................        55
SECTION 9.04.     Notation on or Exchange of Securities.........................................        55
SECTION 9.05.     Trustee to Sign Amendments, Etc...............................................        56
SECTION 9.06.     Conformity with Trust Indenture Act...........................................        56

</TABLE>


<PAGE>




                                                   iv



<TABLE>
<CAPTION>
                                                ARTICLE TEN                                            Page

                                               SUBORDINATION

<S>                  <C>                                                                               <C>
SECTION 10.01.        Securities Subordinate to Senior Indebtedness.............................        56
SECTION 10.02.        No Payment on Securities in Certain Circumstances.........................        56
SECTION 10.03.        Payment Over of Proceeds Upon Dissolution, Etc............................        57
SECTION 10.04.        Subrogation of Holders to Rights of Holders of
                             Senior Indebtedness................................................        59
SECTION 10.05.        Obligations of Company Unconditional......................................        59
SECTION 10.06.        Payments May Be Made Prior to Dissolution.................................        60
SECTION 10.07.        No Waiver of Subordination Provisions.....................................        60
SECTION 10.08.        Authorization to Trustee to Take Action to Effectuate
                             Subordination......................................................        60
SECTION 10.09.        Senior Indebtedness May Be Renewed or Extended, Etc.......................        60
SECTION 10.10.        Trustee to Have No Fiduciary Duty to Holders of Senior
                             Indebtedness.......................................................        61
SECTION 10.11.        Rights of Trustee as Holder of Senior Indebtedness........................        61
SECTION 10.12.        Notice to Trustee.........................................................        61
SECTION 10.13.        Reliance on Judicial Order or Certificate of Liquidating
                             Agent..............................................................        62
SECTION 10.14.        Not to Prevent Events of Default..........................................        62
SECTION 10.15.        Trustee's Compensation Not Prejudiced.....................................        62



                                              ARTICLE ELEVEN

                                               MISCELLANEOUS
SECTION 11.01.        Trust Indenture Act of 1939...............................................        62
SECTION 11.02.        Notices...................................................................        62
SECTION 11.03.        Certificate and Opinion as to Conditions Precedent........................        63
SECTION 11.04.        Statements Required in Certificate or Opinion.............................        63
SECTION 11.05.        Rules by Trustee, Paying Agent or Registrar...............................        64
SECTION 11.06.        Payment Date Other Than a Business Day....................................        64
SECTION 11.07.        Governing Law.............................................................        64
SECTION 11.08.        No Adverse Interpretation of Other Agreements.............................        64
SECTION 11.09.        No Recourse Against Others................................................        64
SECTION 11.10.        Successors................................................................        65
SECTION 11.11.        Duplicate Originals.......................................................        65
SECTION 11.12.        Separability..............................................................        65
SECTION 11.13.        Table of Contents, Headings, Etc..........................................        65

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



</TABLE>


<PAGE>







                  INDENTURE,  dated  as  of  March  15,  1998,  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 11%
Senior Subordinated  Deferred Interest Notes Due 2008 (the "Initial Securities")
and,  if  and  when  issued  pursuant  to  a  registered  exchange  for  Initial
Securities,  the Company's 11% Senior  Subordinated  Deferred Interest Notes Due
2008 (the "Exchange  Securities")  and, if and when issued pursuant to a private
exchange for Initial Securities,  the Company's 11% Senior Subordinated Deferred
Interest Notes Due 2008 (the "Private  Exchange  Securities",  together with the
Exchange Securities and the Initial Securities, the "Securities"):


                                   ARTICLE ONE

                   DEFINITIONS AND INCORPORATION BY REFERENCE

                  SECTION 1.01.  Definitions.

           "1995 Notes" means the 1995 Senior Notes and the Convertible Notes.

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

           "1995 Senior Notes" means the 14% Senior Discount Notes Due 2005 of
the Company.

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

           "1997 Senior Subordinated Notes" means the 15% Senior Subordinated
Deferred Interest Notes Due 2007 of the Company.

                  "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:


                                                            Accumulated
SemiAnnual Interest Accrual Date                               Amount
- ---------------------------------                           -----------

September 15, 1998...................................        $1,053.78
March 15, 1999.......................................         1,111.74


<PAGE>


                                                                           2


September 15, 1999..................................          1,172.88
March 15, 2000......................................          1,237.39
September 15, 2000..................................          1,305.45
March 15, 2001......................................          1,377.25
September 15, 2001..................................          1,452.99
March 15, 2002......................................          1,532.91
September 15, 2002..................................          1,617.22
March 15, 2003......................................          1,706.17


                  (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;

                  (iiiif  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 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 $ 1,706.17.

                  "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


<PAGE>


                                                                            3

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 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.

                  "Allocated Proceeds" has the meaning provided in Section 4.05.

                  "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.


<PAGE>

                                                                             4

                  "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 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; (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.

                  "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 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.

<PAGE>


                                                                            5

                  "Cash-Pay Notes" means the 10% Senior Subordinated Notes Due 
2008 of the Company.

                  "Cash-Pay Notes  Indenture"  means the Indenture,  dated as of
March 15, 1998, between the Company and United States Trust Company of New York,
pursuant to which the Cash-Pay Notes were issued.

                  "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 Issue 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 Issue 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.

                  "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


<PAGE>


                                                                            6

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  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 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  Cash-Pay  Notes,  the  Convertible
Preferred  Stock, the 1997 Senior  Subordinated  Notes, the 1997 Notes, the WSAC
Loan and the  Exchangeable  Preferred Stock, 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.


<PAGE>


                                                                           7

                  "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.

               "Convertible  Preferred  Stock"  means  the  Series  D 7%  Senior
Cumulative Convertible Preferred Stock Due 2010 of the Company.

                  "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 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.

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

                  "Deemed Closing Date" means March 18, 1997.

                  "Designated Senior  Indebtedness" means the 1995 Senior Notes,
the 1997 Senior  Notes,  the  Equipment  Note  Guarantees  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."

                  "Equipment Notes" means the $200,000,000 of 12 1/2% Guaranteed
Senior Secured Notes Due 2004 of WEC and the  $50,000,000 of 12 1/2%  Guaranteed
Senior Secured Notes Due 2004 of WEC II.

                  "Equipment Note Guarantees"  means the Guarantees  provided by
the Company with respect to the Equipment Notes.

                  "Exchange  Debentures"  means the 14 1/4% Senior  Subordinated
Deferred  Interest  Notes Due 2007 of the Company  issuable in exchange  for the
Exchangeable Preferred Stock.

                  "Exchangeable  Preferred  Stock"  means the Series C 14 1/4%
Senior Cumulative Exchangeable Preferred Stock Due 2007 of the Company.

                  "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).


<PAGE>


                                                                              8

                  "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 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  Cash-Pay  Notes,  the
Convertible Preferred Stock, the 1997 Senior Subordinated Notes, the 1997 Notes,
the WSAC Loan and the Exchangeable  Preferred Stock 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"  means  the  Person  in  whose  name  a  Security  is
registered on the books of the registrar for the Securities.

                  "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  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

<PAGE>


                                                                             9

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 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 March 15 and September 15 of each year, commencing September 15, 2003.


<PAGE>


                                                                            10

                  "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  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).

                  "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 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


<PAGE>


                                                                           11

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 thereof that is 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  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 the  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


<PAGE>


                                                                            12

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

                  "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


<PAGE>


                                                                            13

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

                  "Permitted Investor" means Mr. 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 Deemed  Closing  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 such debt security,  which, in the case of the
Securities, shall be the Accumulated Amount from time to time.

                  "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.

                  "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.


<PAGE>


                                                                            14

                  "Registrar" has the meaning provided in Section 2.03.

                  "Regular Record Date" for the interest payable on any Interest
Payment  Date means March 1 or September 1 (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 Issue Date or thereafter Incurred:  (i) all
Indebtedness  and all other  monetary  obligations of the Company under the 1995
Senior Notes, the 1997 Senior Notes, and the Equipment Note Guarantees, (ii) all
other  Indebtedness  of the Company  (other than the  Securities,  the  Cash-Pay
Notes,  the 1997 Senior  Subordinated  Notes,  the Exchange  Debentures  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 1995 Senior  Notes,  the 1997
Senior  Notes  and the  Equipment  Note  Guarantees  (including  any  agreements
pursuant to which the 1995 Senior Notes,  the 1997 Senior Notes or the Equipment
Note  Guarantees  were  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


<PAGE>


                                                                            15

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.  Senior
Indebtedness of the Company will 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 and the Cash-Pay Notes,  payable
pursuant  to the  terms  of the  Securities  and  the  Cash-Pay  Notes  or  upon
acceleration,  to the extent  relating  to the  purchase of  Securities  and the
Cash-Pay Notes or amounts  corresponding to such principal,  premium, if any, or
interest on the Securities and the Cash-Pay Notes.

                  "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  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) WinStar  Gateway
Network, Inc., WinStar Wireless, Inc., WinStar Telecommunications, Inc., WinStar
Milliwave,  Inc., WinStar Locate, Inc. and WinStar Wireless Fiber Corp., and, in
each case, its


<PAGE>


                                                                          16

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  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


<PAGE>


                                                                           17

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 greater than $1,000, 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.

                  "WEC" means WinStar Equipment Corp. and its successors.

                  "WEC II" means WinStar Equipment II Corp. and its successors.

                  "WSAC" means WinStar Switch Acquisition Corp. and its 
successors.

                  "WSAC Credit Agreement" means the Credit Agreement dated as of
October 17, 1997,  among WSAC,  the Lenders named  therein,  Credit Suisse First
Boston,  as documentation  agent, and Salomon Brothers Inc, as syndication agent
and collateral and administrative agent, as in effect from time to time.



<PAGE>


                                                                            18

                  "WSAC Loan" means all  Indebtedness  and other  obligations of
WSAC arising in connection with the WSAC Credit Agreement.

                  "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 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

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



<PAGE>


                                                                           19

                  SECTION 1.04. Ranking of the Securities.  The Securities shall
rank pari passu with the Convertible Notes, the 1997 Senior  Subordinated Notes,
the Exchange Debentures and the Cash-Pay 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.

                  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  $250,000,000)  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
appoint ment, an authenticating  agent may authenticate  Securities whenever the
Trustee may do so. Each  reference in this  Indenture to  authentication  by the
Trustee includes authen tication by such agent. An authenticating  agent has the
same rights as any Registrar or Paying Agent.



<PAGE>


                                                                           20

                  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  Security  holders or the Trustee all money held by the
Paying Agent for the payment of principal 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

<PAGE>


                                                                            21

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 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 Secur ity.

                  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  cancelation  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


<PAGE>


                                                                           22

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.

                  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. Cancelation. The Company at any time may deliver
Securities  to the Trustee for  cancelation.  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
cancelation 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 cancelation.

                  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;   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.




<PAGE>


                                                                            23

                                  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 15,  2003 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 15 of the years set forth below:


               Year                          Redemption Price
               ----                          ----------------

               2003                              105.500%
               2004                              103.667
               2005                              101.833
               2006 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.

                  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.


<PAGE>


                                                                          24

                  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;

                  (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


<PAGE>


                                                                         25

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 cancelation.

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



<PAGE>


                                                                           26

                  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.

                  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 $200,000,000,  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 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);

                  (iiiIndebtedness  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


<PAGE>


                                                                           27

         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  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  March 1, 1998  (less  the  amount of any such Net Cash
         Proceeds the receipt of which  permitted the Company or any  Restricted
         Subsidiary to make any  Restricted  Payment,  including any  Restricted
         Payment  described in the second paragraph under Section 4.05) 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 at least to the extent that the Securities are  subordinated
         to Senior Indebtedness;


<PAGE>


                                                                            28

                  (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;

                  (viiIndebtedness  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); and

                  (ix)Indebtedness  of the  Company,  to the extent the proceeds
         thereof  are  immediately  used to purchase  the 1995  Notes,  the 1997
         Notes, the 1997 Senior Subordinated Notes, the Exchange Debentures, the
         Securities or the Cash-Pay  Notes 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 of
the  Company  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 10; provided,  however, that the foregoing limitation shall not apply to
distinctions between categories of Senior Indebtedness of the Company that exist
by reason of any Liens or  Guarantees  arising or created in respect of some but
not all  Senior  Indebtedness  of the  Company  or (ii)  Incur any  Indebtedness
secured  by a Lien  if  such  Indebtedness  is not  Senior  Indebtedness  of the
Company,  unless  contemporaneously  therewith  effective  provision  is made to
secure the Securities equally


<PAGE>


                                                                            29

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)  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 (less the amount of such Net Cash
Proceeds the receipt of which served as the basis on which the Company  Incurred
Indebtedness  pursuant to clause (v) of the second  paragraph under Section 4.03
or pursuant to any similar provision  contained in the indenture relating to the
1995  Senior  Notes as in  effect  on the  Deemed  Closing  Date  (such Net Cash
Proceeds being herein called  "Allocated  Proceeds")) 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  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,


<PAGE>


                                                                            30

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.

                  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;

                  (iiithe 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 (other than
         Allocated Proceeds),  of a substantially  concurrent sale of, shares of
         Capital  Stock or  options,  warrants or other  rights to acquire  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  (other than  Allocated  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  $30,000,000  at any  one  time
          outstanding;

               (vii)  Investments,  not to  exceed  $30,000,000  at any one time
          outstanding,  in  entities,  substantially  all of the assets of which
          consist of Telecommunications Assets;

               (vii)(A)  cash  payments in lieu of the  issuance  of  fractional
          shares  of  Common   Stock  upon   conversion   (including   mandatory
          conversion) of the  Convertible  Notes provided for in the Convertible
          Notes  Indenture  and  (B)  cash  payments  on the  Convertible  Notes
          required  to be made under the  provisions  of the  Convertible  Notes
          Indenture  that  relate to  repurchases  of  Convertible  Notes upon a
          change of control and that relate to limitations on sales of assets;



<PAGE>


                                                                           31

                  (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 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;

                   (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; and

               (xi)the redemption of the shares of Exchangeable  Preferred Stock
          upon mandatory redemption on December 15, 2007;

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 the Securities or such 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;

                  (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;



<PAGE>


                                                                           32

               (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  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  (A)  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 (B) creating, incurring, assuming or suffering to exist
         any Liens otherwise permitted pursuant to the indenture relating to the
         1997 Senior Notes as in effect on the Deemed Closing Date.



<PAGE>


                                                                            33

                  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;

               (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 (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


<PAGE>


                                                                             34

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  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  (or series of related
transactions) with any Unrestricted Subsidiary covered by the first paragraph of
this Section 4.09 and not covered by clauses (i) through (v) of this  paragraph,
the aggregate amount of which does not exceed $250,000 in value in any year will
not be  covered  by this  Section  4.09  and,  if the  aggregate  value  of such
transaction  exceeds  $250,000 in any year,  will not be covered by this Section
4.09 if such  transaction  has been  determined  by the Board of Directors to be
fair to the Company.

                  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 Issue 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


<PAGE>


                                                                           35

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 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 and from the holders
of the  Cash-Pay  Notes on a pro rata  basis an  aggregate  principal  amount of
Securities  and  Cash-Pay  Notes  equal to the Excess  Proceeds  on such date of
purchase,  at a purchase price equal to 101% of the  Accumulated  Amount of such
Securities  or the  principal  amount  of the  Cash-Pay  Notes  on such  date of
purchase,  plus accrued and unpaid interest (if any) on such Accumulated  Amount
of Securities or principal  amount of Cash-Pay Notes, as the case may be, to the
date of purchase; provided, however, that no Offer to Purchase shall be required
to be commenced  with respect to the  Securities or the Cash-Pay Notes until the
Business  Day  following  the payment date with respect to the Offer to Purchase
any 1997 Notes and need not be commenced if the Excess Proceeds  remaining after
application  thereof  to the 1997  Notes  purchased  in such  Offer to  Purchase
applicable thereto are less than $10,000,000; provided further, however, that no
Securities or Cash-Pay Notes may be purchased under this Section 4.10 unless the
Company shall have purchased all 1997 Notes  tendered  pursuant to such 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  Cash-Pay  Notes,  the  1997  Senior
Subordinated  Notes, the Exchange Debentures and the Convertible Notes) pursuant
to this Section 4.11 until it has  repurchased  all of the 1995 Senior Notes and
the 1997 Senior Notes and has caused each of WEC and WEC II to repurchase all of
the WEC  Equipment  Notes and WEC II  Equipment  Notes,  respectively,  tendered
pursuant  to any  Offer to  Purchase  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


<PAGE>


                                                                          36

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  this Section  4.11.  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
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.


<PAGE>


                                                                            37

                  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)  Beginning  with
respect to the fiscal year ended December 31, 1998, 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
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) Beginning  with respect to the fiscal year ended  December
31,  1998,  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.


<PAGE>


                                                                            38

                  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 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;



<PAGE>


                                                                             39

                  (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

                  (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  principal  of (or
         premium, if any, on) any Security when the same becomes due and payable
         at maturity, upon acceleration, redemption or otherwise, whether or not
         such payment is prohibited by 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 10;

                  (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 by the Trustee or
         the  Holders  of 25% or  more  in  aggregate  principal  amount  of the
         Securities;



<PAGE>


                                                                            40

                  (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 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


<PAGE>


                                                                             41

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 (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


<PAGE>


                                                                           42

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 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 bring suit for the enforcement


<PAGE>


                                                                             43

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;

               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.



<PAGE>


                                                                           44

                  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.

                  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.



<PAGE>


                                                                            45

                  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;

                  (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



<PAGE>


                                                                            46

                  (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.

                  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, 1999, 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.


<PAGE>


                                                                          47

                  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 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.


<PAGE>


                                                                            48

                  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  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  cancelation  and
         the Company has paid all sums payable by it hereunder; or




<PAGE>


                                                                             49

                  (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.

                  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,


<PAGE>


                                                                          50

         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;

                  (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>


                                                                           51

                  (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  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


<PAGE>


                                                                          52

         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  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


<PAGE>


                                                                          53

         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 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.


<PAGE>


                                                                          54


                                  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
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);

                     (ii)  reduce  the   percentage   in  principal   amount  of
         outstanding Securities the consent of whose Holders is required for any
         such supplemental


<PAGE>


                                                                            55

         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 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


<PAGE>


                                                                       56

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.


                                   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, the
1997 Senior Subordinated Notes, the Exchange Debentures and the Cash-Pay 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


<PAGE>


                                                                             57

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 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 any payment may be


<PAGE>


                                                                            58

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, 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


<PAGE>


                                                                            59

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
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


<PAGE>


                                                                           60

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  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


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                                                                           61

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.

                  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.

                  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


<PAGE>


                                                                          62

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.


                                 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



<PAGE>


                                                                          63

                  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.

                  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;



<PAGE>

                                                                           64

                (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, 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;  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>


                                                                            65

                  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.


<PAGE>


                                                                            66






                  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>


                                                                      EXHIBIT A



                [FACE OF EXCHANGE NOTE OR PRIVATE EXCHANGE NOTE]

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

             11% Senior Subordinated Deferred Interest Note Due 2008

                                                           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 15, 2008.

                  SemiAnnual Interest Accrual Date: March 15 and September 15,
commencing September 15, 1998.

                  Interest Payment Dates:  March 15 and September 15, commencing
September 15, 2003.

                  Regular Record Dates:  March 1 and September 1.

                  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 11% Senior  Subordinated  Deferred  Interest Notes
Due 2008 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.

             11% Senior Subordinated Deferred Interest Note Due 2008

1.  Principal and Interest.

                  The Company  will pay the  principal of this Note on March 15,
2008.

                  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 15,  2003,  interest on the Notes will accrue at a
rate of 11% 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 15, 2003,  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 March 1 or  September  1  immediately  preceding  the  relevant
Interest Payment Date) on each Interest Payment Date,  commencing  September 15,
2003.

                  "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:


                                                            Accumulated
          SemiAnnual Interest Accrual Date                    Amount
          --------------------------------                  -----------

          September 15, 1998.............................   $1,053.78
          March 15, 1999.................................    1,111.74
          September 15, 1999.............................    1,172.88
          March 15, 2000.................................    1,237.39
          September 15, 2000.............................    1,305.45
          March 15, 2001.................................    1,377.25
          September 15, 2001.............................    1,452.99
          March 15, 2002.................................    1,532.91
          September 15, 2002.............................    1,617.22
          March 15, 2003.................................    1,706.17

                  (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


<PAGE>


                                      EA-4

         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
         $1,706.17.

                  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.

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 15 and September 15,  commencing  September 15, 2003, to the
persons who are Holders (as reflected in the Security  Register) at the close of
business  on the March 1 or  September  1  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if  the  Note  is  canceled  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


<PAGE>


                                      EA-5

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
March  15,  1998,  (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.

                  The Indenture limits the original  aggregate  principal amount
of the Notes to $250,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The Notes  will not be  redeemable  prior to March  15,  2003.
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 15 of the years set forth below:

                  Year                      Redemption Price
                  ----                      ----------------

                  2003                          105.500%
                  2004                          103.667
                  2005                          101.833
                  2006 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


<PAGE>


                                      EA-6

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 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.



<PAGE>


                                      EA-7

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 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


<PAGE>


                                      EA-8

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.

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.



<PAGE>


                                      EA-9

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 (= 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-10

                                 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-11

                       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>




                                                 RULE 144A/REGULATION S APPENDIX



        FOR OFFERINGS TO QUALIFIED INSTITUTIONAL BUYERS PURSUANT TO RULE
      144A, 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:

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

                  "Exchange   Securities"  means  the  11%  Senior  Subordinated
Deferred  Interest  Notes Due 2008 to be issued  pursuant to this  Indenture  in
connection with a Registered  Exchange Offer pursuant to the Registration Rights
Agreement.

                    "Initial   Purchasers"  means  Credit  Suisse  First  Boston
Corporation,  Salomon  Brothers  Inc,  Morgan  Stanley  & Co.  Incorporated  and
NationsBanc Montgomery Securities LLC.

                  "Initial   Securities"  means  the  11%  Senior   Subordinated
Deferred  Interest  Notes Due 2008,  issued under this Indenture on or about the
date hereof.

                  "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   11%   Senior
Subordinated  Deferred  Interest  Notes Due 2008 to be issued  pursuant  to this
Indenture to the Initial Purchasers in a Private Exchange.

                  "Purchase  Agreement" means the Purchase Agreement dated March
17, 1998, 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.



<PAGE>


                                                                          A-2

                    "Registration   Rights  Agreement"  means  the  Registration
Rights  Agreement  dated  March 17,  1998,  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.


         1.2  Other Definitions

                                                             Defined in
                  Term                                         Section:
                  ----                                      -------------

          "Agent Members"......................................2.1(b)
          "Global Security"....................................2.1(a)
          "Regulation S".......................................2.1(a)
          "Rule 144A"..........................................2.1(a)

         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.



<PAGE>


                                                                          A-3

                  (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  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.

         2.2  Authentication.  The Trustee shall  authenticate and deliver:  (1)
Initial  Securities  for  original  issue in an  aggregate  principal  amount of
$250,000,000  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 $250,000,000 except
as provided in Section 2.07 of this Indenture.

         2.3  Transfer  and  Exchange.  (a)  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.


<PAGE>


                                                                         A-4

                  (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 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.

                  (b)  Legend.

                  (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)
                  OUTSIDE THE UNITED STATES IN A 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) OR (IV) PURSUANT TO AN
                  EFFECTIVE  REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN
                  EACH  OF  CASES  (I)  THROUGH  (IV)  IN  ACCORDANCE  WITH  ANY
                  APPLICABLE SECURITIES LAWS OF ANY STATE OF THE


<PAGE>


                                                                         A-5

                  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.

                  (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, 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  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.

                  (c) Cancelation 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


<PAGE>


                                                                           A-6

returned to the  Depositary  for  cancelation  or retained  and  canceled by the
Trustee. At any time prior to such cancelation,  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.

                  (d)  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  Security
         selected for  redemption  in whole or in part pursuant to Article Three
         of this Indenture,  except the unredeemed  portion of any  certificated
         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.

                  (e)  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
         owner or other Person (other than the Depositary) of any


<PAGE>


                                                                          A-7

         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  Indenture 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 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


<PAGE>


                                                                          A-8

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>




                                                                    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.

                  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) OUTSIDE THE
UNITED STATES IN A 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) OR (IV) PURSUANT TO AN EFFECTIVE
REGISTRATION  STATEMENT  UNDER THE SECURITIES  ACT, IN EACH OF CASES (I) THROUGH
(IV) IN  ACCORDANCE  WITH ANY  APPLICABLE  SECURITIES  LAWS OF ANY  STATE OF THE
UNITED STATES, AND (B) THE


<PAGE>


                                                                          EI-2

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.


<PAGE>


                                                                         EI-3

                        [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  $1,644.56,  IN EACH CASE PER $1,000  PRINCIPAL
AMOUNT OF THIS SECURITY.  THE AMOUNT OF THE ORIGINAL ISSUE DISCOUNT ATTRIBUTABLE
TO THE PERIOD COMMENCING MARCH 20, 1998 AND ENDING ON MARCH 15, 2003 IS $706.17.
FOR  PURPOSES OF SECTION  1275 OF THE CODE,  THE ISSUE DATE OF THIS  SECURITY IS
MARCH 20, 1998.  FOR PURPOSES OF SECTION 1272 OF THE CODE, THE YIELD TO MATURITY
(COMPOUNDED  SEMIANNUALLY  ON MARCH 15 AND SEPTEMBER  15) IS 11.00%,  CALCULATED
BASED ON THE APPROXIMATE METHOD.


<PAGE>


                                                                          EI-4

                          WINSTAR COMMUNICATIONS, INC.

             11% Senior Subordinated Deferred Interest Note Due 2008

                                                            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 15,
2008.

                  SemiAnnual Interest Accrual Date: March 15 and September 15,
commencing September 15, 1998.

                  Interest Payment Dates:  March 15 and September 15, commencing
September 15, 2003.

                  Regular Record Dates:  March 1 and September 1.

                  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-5

         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 11% Senior Subordinated  Deferred Interest Notes Due
2008 described in the within-mentioned Indenture.

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


                                    By: _________________________________
                                        Authorized Signatory




<PAGE>


                                                                        EI-6

                             [REVERSE SIDE OF NOTE]

                          WINSTAR COMMUNICATIONS, INC.

             11% Senior Subordinated Deferred Interest Note Due 2008

1.  Principal and Interest.

                  The Company  will pay the  principal of this Note on March 15,
2008.

                  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 15,  2003,  interest on the Notes will accrue at a
rate of 11% 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 15, 2003,  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 March 1 or  September  1  immediately  preceding  the  relevant
Interest Payment Date) on each Interest Payment Date,  commencing  September 15,
2003.

                  "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:


                                                                    Accumulated
          SemiAnnual Interest Accrual Date                             Amount
          --------------------------------                          -----------

          September 15, 1998.....................................    $1,053.78
          March 15, 1999.........................................     1,111.74
          September 15, 1999.....................................     1,172.88
          March 15, 2000.........................................     1,237.39
          September 15, 2000.....................................     1,305.45
          March 15, 2001.........................................     1,377.25
          September 15, 2001.....................................     1,452.99
          March 15, 2002.........................................     1,532.91
          September 15, 2002.....................................     1,617.22
          March 15, 2003.........................................     1,706.17


                  (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


<PAGE>


                                                                          EI-7

         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
         $1,706.17.

                  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.

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 15 and September 15,  commencing  September 15, 2003, to the
persons who are Holders (as reflected in the Security  Register) at the close of
business  on the March 1 or  September  1  immediately  preceding  the  relevant
Interest  Payment  Date,  in  each  case,  even  if  the  Note  is  canceled  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.



<PAGE>


                                                                       EI-8

                  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
March  15,  1998  (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.

                  The Indenture limits the original  aggregate  principal amount
of the Notes to $250,000,000 (subject to Section 2.07 of the Indenture).

5.  Redemption.

                  The Notes  will not be  redeemable  prior to March  15,  2003.
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 15 of the years set forth below:

                           Year                    Redemption Price
                          -----                    ----------------
                           2003                       105.500%
                           2004                       103.667


<PAGE>


                                                                          EI-9

                           2005                       101.833
                           2006 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 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


<PAGE>


                                                                         EI-10

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  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


<PAGE>


                                                                          EI-11

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 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>


                                                                         EI-12

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 (= 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.



<PAGE>


                                                                       EI-13

                  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 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:


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

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
         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


<PAGE>


                                                                       EI-16

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>
<S>            <C>                       <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>










                                  $450,000,000

                          WINSTAR COMMUNICATIONS, INC.

               $200,000,000 10% Senior Subordinated Notes Due 2008

      $250,000,000 11% Senior Subordinated Deferred Interest Notes Due 2008


                          REGISTRATION RIGHTS AGREEMENT


                                                               March 17, 1998

Credit Suisse First Boston Corporation
Salomon Brothers Inc
Morgan Stanley & Co. Incorporated
NationsBanc Montgomery Securities LLC
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,  Salomon
Brothers Inc, Morgan Stanley Incorporated and NationsBanc  Montgomery Securities
LLC (the "Initial Purchasers"), upon the terms set forth in a purchase agreement
of even date herewith (the "Purchase  Agreement"),  $200,000,000 of the Issuer's
10% Senior  Subordinated  Notes Due 2008 (the "Cash-Pay Notes") and $250,000,000
of the Issuer's 11% Senior  Subordinated  Deferred  Interest Notes Due 2008 (the
"Deferred  Interest Notes")  (collectively,  the "Notes").  Each of the Cash-Pay
Notes and the  Deferred  Interest  Notes will be issued  pursuant  to a separate
Indenture,   each  dated  as  of  March  15,  1998  (each,  an  "Indenture"  and
collectively,  the  "Indentures"),  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 or  statements  (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 (each
a  "Registered  Exchange  Offer"  and  collectively,  the  "Registered  Exchange
Offers")  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 respective Notes, a
like aggregate principal amount of debt securities of the Issuer  (collectively,
the  "Exchange  Securities")  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


<PAGE>


                                                                            2

Exchange Offer  Registration  Statement to become effective under the Securities
Act by August 17, 1998 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").

         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  Offer) 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.


<PAGE>


                                                                            3

         If, upon  consummation of the Registered  Exchange  Offer,  any Initial
Purchaser holds Cash-Pay Notes or Deferred Interest 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 respective Notes held by
such Initial Purchaser,  a like aggregate principal amount of debt securities of
the Issuer  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 Cash-Pay Notes or Deferred  Interest
Notes, as the case may be (collectively, 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 applicable Trustee for cancelation all the Notes so
accepted for exchange; and

         (z) cause the applicable  Trustee to authenticate  and deliver promptly
to each Holder which validly tendered the 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.

         Each Indenture will provide that the Exchange Securities subject to the
applicable Indenture will not be subject to the transfer  restrictions set forth
in the  applicable  Indenture.  Each  Indenture  will also  provide that all the
Notes,  Exchange  Securities  and  Private  Exchange  Securities  subject to the
applicable Indenture will vote and consent together on all


<PAGE>


                                                                           4

matters as one class and that none of the Notes,  Exchange Securities or Private
Exchange  Securities subject to the applicable  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 date on which  interest  was paid or  accrued,  as the case may be, on such
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  Offers,  as  contemplated  by
Section 1 hereof,  (ii) the Registered  Exchange  Offers are not  consummated by
September 16, 1998, (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 a Registered
Exchange  Offer or, in the case of any Holder of Notes (other than an Exchanging
Dealer) that participates in a


<PAGE>


                                                                            5

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 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  relevant
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


<PAGE>


                                                                            6

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, 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


<PAGE>


                                                                             7

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 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


<PAGE>


                                                                            8

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
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 Transfer Agent or the Trustee, as applicable,  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  Indentures  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 any of
the Indentures,  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


<PAGE>


                                                                             9

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 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


<PAGE>


                                                                          10

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 a  Registered  Exchange  Offer,  if requested by any
Initial  Purchaser or any known  Participating  Broker-Dealer,  the Issuer shall
cause (i) its counsel to deliver to such Initial Purchaser or such Participating
Broker-Dealer  signed  opinions  in the  forms  described  in  Section  6 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 Section  6(a) and (f) 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.



<PAGE>


                                                                           11

         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  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.


<PAGE>


                                                                            12

         (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 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


<PAGE>


                                                                          13

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
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 cancelation 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  May  4,  1998,  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 August 17,  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 September 16, 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


<PAGE>


                                                                            14

occurs  as a  result  of  which  the  related  prospectus  forming  part of such
Registration  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,  (A) in the case
of the Deferred  Interest Notes and any Private  Exchange  Securities  exchanged
therefor,  on each  SemiAnnual  Interest  Accrual Date or Interest  Payment Date
(each as defined in the applicable indenture governing such Securities),  as the
case  may be,  commencing  with  the  first  SemiAnnual  Interest  Accrual  Date
following  the  applicable  Registration  Default,  and  (B) in the  case of the
Cash-Pay Notes and any Private Exchange Securities  exchanged therefor,  on each
Interest Payment Date (as defined in the indenture  governing such  Securities),
commencing  with the first such Interest  Payment Date  following the applicable
Registration  Default.  The amount of Additional  Interest will be determined by
multiplying  the  Additional  Interest  Rate by, (A) in the case of the Deferred
Interest  Notes and any Private  Exchange  Securities  exchanged  therefor,  the
Accumulated  Amount (as defined in the indenture  governing such  Securities) of
such Securities on the relevant  Additional Interest payment date and (B) in the
case of the  Cash-  Pay  Notes and any  Private  Exchange  Securities  exchanged
therefor, the principal amount of such Securities, in each case, 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


<PAGE>


                                                                          15

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 (or, if there is no
regular record date, the date 15 days prior to such Additional  Interest payment
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 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.



<PAGE>

                                                                          16

         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 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
                      Attention:  Investment Banking Department--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.


<PAGE>


                                                                            17

         (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.

         (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
SALOMON BROTHERS INC
MORGAN STANLEY & CO. INCORPORATED
NATIONSBANC MONTGOMERY SECURITIES LLC

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>



Winstar Completes $650 Million in Institutional Private Placements

NEW YORK--March 20, 1998--WINSTAR COMMUNICATIONS, INC. (NASDAQ -WCII)
reported today it completed $650 million in institutional  private placements of
bonds and preferred stock.  The company had previously  announced plans to raise
$500 million,  but  increased the size of the offerings due to investor  demand.
The offerings  were placed by Credit Suisse First Boston;  Salomon Smith Barney;
Morgan Stanley Dean Witter; and NationsBanc Montgomery Securities.

The private placements consisted of:

- -- $200 million of 7% Senior Cumulative Convertible Preferred Stock; convertible
at $49.61 per share , a 25% premium to the  company's  stock price on the day of
the offering;

- -- $200 million in 10% Senior Subordinated Notes due 2008; and

- -- $250 million in 11% Senior Subordinated Deferred Interest Notes due 2008.

The   proceeds   of  these   offerings   will  be  used  to   expand   WinStar's
telecommunications operations and for general corporate purposes.

WinStar Communications, Inc. is a national local communications company, serving
business  customers,  long distance  carriers,  fiber-based  competitive  access
providers, mobile communications companies, local telephone companies, and other
customers with broadband local  communications  needs.  The company provides its
Wireless FiberSM services using its licenses in the 38 GHz spectrum. The company
also provides long distance, Internet and information services.

WinStar is a  registered  trademark,  and  Wireless  Fiber is a service  mark of
WinStar Communications, Inc.



<PAGE>




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