IPR Details
AT&T's Statement about IPR related to draft-willis-sip-cookies, draft-dcsgroup-sip-proxy-proxy, draft-dcsgroup-sip-arch, draft-ietf-sip-update, draft-ietf-sip-state, draft-ietf-sip-privacy, draft-ietf-sip-manyfolks-resource, draft-ietf-sip-events, draf...

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

Submitted: February 25, 2002 under the rules in RFC 2026

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.


Updated by

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

Holder legal name AT&T

II. Patent Holder's Contact for Licence Application

Holder contact name Thomas F. Frost
Holder contact email tfrost@att.com
Holder contact info

Intellectual Property Vice President
AT&T Intellectual Property Licensing
180 Park Avenue
Florham Park, NJ 07932

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

Internet-Draft: draft-willis-sip-cookies ("SIP Cookies") Internet-Draft: draft-dcsgroup-sip-proxy-proxy ("SIP proxy-to-proxy extensions for supporting DCS") Internet-Draft: draft-dcsgroup-sip-arch ("Architectural Considerations for Providing Carrier Class Telephony Services Utilizing SIP-based Distributed Call Control Mechanisms") Internet-Draft: draft-ietf-sip-update ("The Session Initiation Protocol (SIP) UPDATE Method") Internet-Draft: draft-ietf-sip-state ("SIP Extensions for supporting Distributed Call State") Internet-Draft: draft-ietf-sip-privacy ("SIP Extensions for Network-Asserted Caller Identity and Privacy within Trusted Networks") Internet-Draft: draft-ietf-sip-manyfolks-resource ("Integration of Resource Management and Session Initiation Protocol (SIP)") Internet-Draft: draft-ietf-sip-events ("Session Initiation Protocol (SIP)-Specific Event Notification") Internet-Draft: draft-ietf-sip-call-auth ("Private Session Initiation Protocol (SIP) Extensions for Media Authorization") Internet-Draft: draft-ietf-sip-100rel ("Reliability of Provisional Responses in Session Initiation Protocol (SIP)")

IV. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by RFC 2026

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

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

United States Patent No. 6,324,279

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

To the extent that the technology discussed in any of these Internet Drafts
becomes an IETF Standard, and to the extent claims of AT&T's patents are
required to implement the IETF Standard, AT&T agrees that, upon written
request, AT&T will offer, on a nondiscriminatory basis, non-exclusive
licenses on fair and reasonable terms under such patent claims to implement
that IETF Standard. AT&T's willingness to grant such licenses is conditioned
upon the prospective licensee granting a reciprocal license to AT&T under
any patents that the prospective licensee has to any technology required to
implement that IETF Standard.

Written requests for licenses may be sent to:

AT&T Intellectual Property Licensing
Room 2E37, Bldg. 104
180 Park Avenue
Florham Park, NJ 07932

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 Frost, Thomas F (Tom), ALCOO
Submitter email tfrost@att.com

VII. Other Notes

Additional notes

draft-ietf-sip-100rel-xx, draft-ietf-sip-call-auth-xx, draft-ietf-sip-events-xx
draft-ietf-sip-manyfolks-resource-xx, draft-ietf-sip-privacy-xx,

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