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The motivation and use cases for interworking and transporting ITU-T
DSS1 User-user information element data in SIP are described in the
"Problem Statement and Requirements for Transporting User to User
Call Control Information in SIP" document. 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
defines a usage (a new package) of the User-to-User header field to
enable interworking with this ISDN service.
This document covers the interworking with both public ISDN and
private ISDN capabilities, so the potential interworking with QSIG
will also be addressed.
The package is identified by a new value "isdn-uui" of the "purpose"
header field parameter.
Keith Drage <email@example.com>
Alan Johnston <firstname.lastname@example.org>
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)