POWER OF ATTORNEY

I, the undersigned, hereby constitute and appoint any one of T.S.J. Connelly
McGilley, G.A. Davies, L.C. Egan, S. Graff, G.K. McDonald, D.M. Parker and
A. Ventresca, my true and lawful attorney for me and in my name to sign or certify and
file, or cause to be filed, with the appropriate authority any and all reports or profiles, in
paper format or electronic format, relating to my ownership, direction, control or trading in
the securities of Nortel Networks Corporation (hereinafter referred to as the "Corporation")
and/or any of the Corporation's subsidiaries, affiliates, associates, and/or any company of
which any of the foregoing corporations is an insider, which are required to be filed
pursuant to the provisions of the Canada Business Corporations Act, the Securities Act
(Ontario) or similar legislation of all or any of the provinces of Canada, and the regulations
made pursuant thereto, the Securities Exchange Act of 1934 of the United States of
America, and regulations and rules made pursuant thereto, and/or the laws, regulations and
rules of any other jurisdictions in which such reports or profiles must be filed, as a
consequence of my being, or being deemed to be, an insider of the Corporation and/or any
of the Corporation's subsidiaries, affiliates, associates, and/or any company of which any
of the foregoing corporations is an insider. I hereby revoke any power of attorney
heretofore made in this regard. This power of attorney shall remain effective until revoked
in writing.

DATED at City of Toronto Ontario
(City/Town) (State/Province)

This 5th day of January 2009 .
(day) (month year)

/s/ David W. Drinkwater
Signature
David W. Drinkwater
(Please print full name)

WITNESS: /s/ Suzanne Luker
Signature
Suzanne Luker
(Please print full name)

Drinkwater David William 4