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IPR Details
Nortel Networks Statement about IPR claimed in RFC 3428

The text of the original IPR disclosure is available in the disclosure history.

Submitted: August 10, 2004 under the rules in RFC 3668.

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.

I. Patent Holder/Applicant ("Patent Holder")

Holder legal name Nortel Networks

II. Patent Holder's Contact for License Application

Holder contact name Kevin Smith
Holder contact email
Holder contact info

Intellectual Property Law Group
2221 Lakeside Boulevard M/S 991/14/B50
Richardson, Texas 75082
T: (972) 685-0745 ESN:445
F: (972) 685-3850

III. IETF Document or Other Contribution to Which this IPR Disclosure Relates

RFC3428 ("Session Initiation Protocol (SIP) Extension for Instant Messaging")

IV. Disclosure of Patent Information
i.e., patents or patent applications required to be disclosed by RFC 3668

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

U.S. Patent No. 6,757,732 B1
WO 01/69883 A2

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending No

V. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

Licensing See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

In this regard, Nortel Networks will make available licenses on fair, reasonable, reciprocal, and non-discriminatory terms to such necessary claims it owns for the purposes of complying with this IETF Standard.

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VI. Contact Information of Submitter of this Form

Submitter name
Submitter email

Only those sections of the relevant entry form where the submitter provided information are displayed above.