A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Session Initiation Proposal Investigation Working
Group of the IETF.
Title : SIP Generic Request History Capability � Requirements
Author(s) : M. Barnes et al.
Filename : draft-ietf-sipping-req-history-04.txt
Pages : 11
Date : 2003-6-24
Many services that SIP is anticipated to support require the ability
to determine why and how the call arrived at a specific application.
Examples of such services include (but are not limited to) sessions
initiated to call centers via 'click to talk' SIP URLs on a web page,
'call history/logging' style services within intelligent 'call
management' software for SIP UAs and calls to voicemail servers and
call centers. While SIP implicitly provides the redirect/retarget
capabilities that enable calls to be routed to chosen applications,
there is currently no standard mechanism within SIP for communicating
the history of such a request. This 'request history' information
allows the receiving application to determine hints about how and why
the call arrived at the application/user.
This draft discusses the motivations in support of a mechanism for
recording the 'request history', and proposes detailed requirements
for such a generic 'request history' capability.
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