UNITED STATES
                             SECURITIES AND EXCHANGE
                                   COMMISSION
                             Washington, D.C. 20549


                                 SCHEDULE 13G/A


                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*



                             Paradyne Networks, Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                         Common Stock ($0.001 par value)
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    69911G107
--------------------------------------------------------------------------------
                                 (CUSIP Number)

                                December 31, 2004
--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

                               Corporate Secretary
                           Nortel Networks Corporation
                                 8200 Dixie Road
                              Brampton, ON L6T 5P6
                                  905-863-0000
--------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

          [ ] Rule 13d-1(b)
          [X] Rule 13d-1(c)
          [ ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



CUSIP No. 69911G107               


   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (entities only)

       Nortel Networks Corporation

   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
                                                                    (a) [ ]
                                                                    (b) [ ]

   3   SEC USE ONLY


   4   CITIZENSHIP OR PLACE OF ORGANIZATION

       Ontario, Canada

                        5    SOLE VOTING POWER

                             -0-

                        6    SHARED VOTING POWER
      NUMBER OF              
       SHARES
    BENEFICIALLY             2,908,501
      OWNED BY
        EACH            7    SOLE DISPOSITIVE POWER
      REPORTING
       PERSON                -0-
        WITH:
                        8    SHARED DISPOSITIVE POWER
                             

                             2,908,501

   9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       2,908,501

  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
       (See Instructions)

  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

       6.3%

  12   TYPE OF REPORTING PERSON

       CO




Item 1.

     (a)   Name of Issuer:

           Paradyne Networks, Inc.

     (b)   Address of Issuer's Principal Executive Offices:

           8545 126th Avenue North, Largo, FL  33773

Item 2.

     (a)   Name of Person Filing:

           Nortel Networks Corporation

     (b)   Address of Principal Business Office:

           8200 Dixie Road, Suite 100, Brampton, Ontario L6T 5P6, Canada

     (c)   Citizenship:

           Ontario, Canada

     (d)   Title of Class of Securities:

           Common Stock ($0.001 par value)

     (e)   CUSIP Number:

           69911G107

Item 3.  If this statement is filed pursuant to Sections 240.13d-1(b),
         or 240.13d-2(b) or (c), check whether the person filing is a:

     (a)  | |  Broker or dealer registered under section 15 of the Act (15
               U.S.C. 78o).

     (b)  | |  Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

               Insurance company as defined in section 3(a)(19) of the Act (15
     (c)  |_|  U.S.C. 78c).

               Investment company registered under Section 8 of the Investment
     (d)  |_|  Company Act of 1940 (15 U.S.C. 80a-8).


     (e)  |_|  An investment adviser in accordance
               withss.240.13d-1(b)(1)(ii)(E);

               An employee benefit plan or endowment fund in accordance
     (f)  |_|  withss.240.13d-1(b)(1)(ii)(F);

               A parent holding company or control person in accordance
     (g)  | |  withss.240.13d-1(b)(ii)(G);

               A savings association as defined in Section 3(b) of the Federal
     (h)  |_|  Deposit Insurance Act (12 U.S.C. 1813);

               A church plan that is excluded from the definition of an
     (i)  |_|  investment company under section 3(c)(14) of the Investment
               Company Act of 1940 (15 U.S.C. 80a-3);

     (j)  |_|  Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).



Item 4.    Ownership

     (a)   Amount Beneficially Owned:

           2,908,501

     (b)   Percent of Class:

           6.3%

     (c)   Number of shares as to which such person has:

              (i)  Sole power to vote or to direct the vote:
                   -0-

             (ii)  Shared power to vote or to direct the vote:
                   2,908,501

            (iii)  Sole power to dispose or to direct the disposition of:
                   -0-

             (iv)  Shared power to direct the disposition of:
                   2,908,501


Item 5.    Ownership of Five Percent or Less of a Class

           If this statement is being filed to report the fact that as    [  ]
           of the date hereof the reporting person has ceased to be
           the beneficial owner of more than five percent of the class
           of securities, check the following:

Item 6.    Ownership of More than Five Percent on Behalf of Another Person

           Not Applicable

Item 7.    Identification and Classification of the Subsidiary Which Acquired
           the Security Being Reported on by the Parent Holding Company

           The shares beneficially owned by Nortel Networks Corporation are
           held directly by Nortel Networks Inc., a wholly owned subsidiary of
           Nortel Networks Limited, which in turn is a wholly owned subsidiary
           of Nortel Networks Corporation.

Item 8.    Identification and Classification of Members of the Group

           Not Applicable

Item 9.    Notice of Dissolution of Group

           Not Applicable

Item 10.   Certification

           By signing below I certify that, to the best of my knowledge and
           belief, the securities referred to above were not acquired and are
           not held for the purpose of or with the effect of changing or
           influencing the control of the issuer of the securities and were not
           acquired and are not held in connection with or as a participant in
           any transaction having that purpose or effect.


                               SIGNATURE

        After reasonable inquiry, and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

February 11, 2005



                                            NORTEL NETWORKS CORPORATION


                                            By:  /s/ Katharine B. Stevenson
                                                 ----------------------------
                                                 Name:  Katharine B. Stevenson
                                                 Title: Treasurer


                                            By:  /s/ Gordon A. Davies
                                                 ----------------------------
                                                 Name:  Gordon A. Davies
                                                 Title: Assistant General
                                                        Counsel-Securities
                                                        and Corporate Secretary