The IESG has received a request from the Call Control UUI Service for SIP WG (cuss) to consider the following document: - 'Interworking ISDN Call Control User Information with SIP' <draft-ietf-cuss-sip-uui-isdn-08.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2014-05-14. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract 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. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-cuss-sip-uui-isdn/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-cuss-sip-uui-isdn/ballot/ No IPR declarations have been submitted directly on this I-D.
