A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Control of Service Context using SIP Request-URI
Author(s) : B. Campbell, R. Sparks
Filename : draft-campbell-sip-service-control-01.txt
Pages : 40
Date : 19-Oct-00
In a conventional telephony environment, extended service
applications often use call state information, such as calling party,
called party, reason for forward, etc, to infer application context.
In a SIP/2.0 call, much of this information may be either non-
existent or unreliable. This draft proposes a mechanism to
communicate context information to an application. Under this
proposal, a client or proxy can communicate context through the use
of a distinctive Request-URI. This draft continues with examples of
how this mechanism could be used in a voice mail application.
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