Analysis of TISPAN requirements for Connected Identity in the Session Initiation Protocol (SIP)

Document Type Expired Internet-Draft (individual)
Author John Elwell 
Last updated 2006-06-28
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


ETSI TISPAN has presented Next Generation Network (NGN) requirements for the delivery of two identities for the caller and two identities for the callee in a SIP INVITE-initiated dialog. Although the solution for this in SIP is relatively straightforward for caller identity, the delivery of callee identity presents some additional problems. This document discusses the issues and suggests some candidate solutions. This work is being discussed on the mailing list.


John Elwell (

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