IPR Disclosure: SSH Communications Security Corporation's Statement about IPR related to RFC 4028

Dear Jonathan Rosenberg, Steven Donovan:

 An IPR disclosure that pertains to your RFC entitled "Session Timers in the
Session Initiation Protocol (SIP)" (RFC4028) was submitted to the IETF
Secretariat on 2013-02-23 and has been posted on the "IETF Page of Intellectual
Property Rights Disclosures" (https://datatracker.ietf.org/ipr/1979/). The title
of the IPR disclosure is "SSH Communications Security Corporation's Statement
about IPR related to RFC 4028."");

The IETF Secretariat