A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Call Control UUI Service for SIP Working Group of the IETF.
Title : Problem Statement and Requirements for Transporting User to User Call Control Information in SIP
Author(s) : A. Johnston, et al.
Filename : draft-ietf-cuss-sip-uui-reqs-00.txt
Pages : 10
Date : 2010-11-08
This document introduces the transport of call control related User
to User Information (UUI) in the Session Initiation Protocol (SIP),
and develops several requirements for a new SIP mechanism. Some SIP
sessions are established by or related to a non-SIP application.
This application may have information that needs to be transported
between the SIP User Agents during session establishment. A common
example in another protocol is the ISDN User to User Information
Service. As networks move to SIP it is important that applications
requiring this data can continue to function in SIP networks as well
as the ability to interwork with this ISDN service for end-to-end
transparency. This document discusses requirements and approaches.
This extension will also be used for native SIP endpoints
implementing similar services and interworking with ISDN services.
Example use cases include an exchange between two user agents,
retargeting by a proxy, and redirection. An example application is
an Automatic Call Distributor (ACD) in a contact center.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-cuss-sip-uui-reqs-00.txt
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ftp://ftp.ietf.org/internet-drafts/
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