History for IPR disclosure
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...

From: http://www.ietf.org/ietf-ftp/IPR/ATT-SIP

The following update was received February 25, 2002
From: "Frost, Thomas F (Tom), ALCOO"


This declaration is being made pursuant to the provisions of IETF IPR Policy,
Sections 10.3.1 and 10.3.2.

This is to advise the IETF that AT&T believes it owns intellectual property
including various pending patent applications and United States Patent No. 6,324,279,
that may relate to the following Internet Draft documents:

                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
                draft-ietf-sip-state-xx
                draft-ietf-sip-update-xx
                draft-dcsgroup-sip-arch-xx
                draft-dcsgroup-sip-proxy-proxy-xx
                draft-willis-sip-cookies-xx

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
Intellectual Property Vice President
180 Park Avenue
Florham Park, NJ 07932

=======
The following update was received February 7, 2002
From: "Frost, Thomas F (Tom), ALCOO"


This declaration is being made pursuant to the provisions of IETF IPR Policy,
Sections 10.3.1 and 10.3.2.  It is an update to the IPR declaration of February 1, 2002, regarding "draft-ietf-sip-rfc2543bis-06".

This is to advise the IETF that AT&T believes it owns intellectual property that
may relate to Internet Draft document " draft-ietf-sip-rfc2543bis-07", including United
States Patent No. 6,324,279.  To the extent that the technology discussed in this
Internet Draft 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  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
Intellectual Property Vice President
180 Park Avenue
Florham Park, NJ 07932



The following was received October 11, 2001
From: "Frost, Thomas F (Tom), ALCOO"


This declaration is being made pursuant to the provisions of IETF IPR
Policy, Sections 10.3.1 and 10.3.2.

This is to advise the IETF that AT&T believes it owns intellectual property
including various pending patent applications that may relate to the
following Internet Draft documents:

        draft-ietf-sip-privacy-xx
        draft-ietf-sip-call-auth-xx
        draft-ietf-sip-manyfolks-resource-xx
        draft-ietf-sip-state-xx
        draft-dcsgroup-sip-proxy-proxy-xx
        draft-dcsgroup-sip-architecture-xx
        draft-willis-sip-cookies-xx

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