Received May 29, 2002
From: "Frost, Thomas F (Tom), ALIPM" <tfrost@att.com>

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 pending patent applications 
that may relate to Internet Draft documents "draft-tomlinson-opes-model-01.txt". 

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 which issue from these pending
patent applications 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 the 
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