rfc-6993

Instant Messaging and Presence Purpose for the Call-Info Header Field in the Session Initiation Protocol (SIP)

P. Saint-Andre

date2013-07 streamIETF wgnon working group statusINFORMATIONAL pages5 canonicalhttps://www.rfc-editor.org/rfc/rfc6993 doi10.17487/RFC6993

This document defines and registers a value of "impp" ("instant messaging and presence protocol") for the "purpose" header field parameter of the Call-Info header field in the Session Initiation Protocol (SIP).