Title: Nortel Networks Statement about IPR claimed in
draft-akhtar-sipping-header-reduction and
draft-akhtar-sipping-3g-static-dictionary

Dear Sir,

Nortel Networks Limited has potential intellectual property rights in an
invention that may pertain to at least a portion of the subject matter
of these IETF Internet Drafts:
1. Title: New SIP Headers for Reducing SIP Message Size
draft-akhtar-sipping-header-reduction-00.txt
Tag: < draft-akhtar-sipping-header-reduction-00.txt >
http://www.ietf.org/internet-drafts/draft-akhtar-sipping-header-reductio
n-00.txt

2. Title: 3G Wireless Support in the SIP/SDP Static Dictionary for
Signaling Compression (SigComp)
draft-akhtar-sipping-3g-static-dictionary-00.txt
Tag: < draft-akhtar-sipping-3g-static-dictionary-00.txt >
http://www.ietf.org/internet-drafts/draft-akhtar-sipping-3g-static-dicti
onary-00.txt

In the event that the technology in either of these documents is
included in a standard adopted by IETF and an unpublished patent
application of Nortel issues which contains claims that are necessary
for practicing the resulting IETF Standard based on either of these
Internet Drafts, Nortel Networks will make available licenses under
fair, reasonable, reciprocal, and non-discriminatory terms under such
necessary claims it owns to fully comply with such IETF Standard.

My contact information is set out below.

Kind Regards,

Michelle Lee
Counsel, IP Law
Nortel Networks Limited
8200 Dixie Road, Ste 100
GMS 036/NO/151
Brampton, Ontario Canada L6T 5P6
Tel: 905-863-1148
Fax: 905-863-8431

Email: mleelaw@nortel.com