All, I have updated the Shared Appearances draft. I think this version closes all the open issues and addresses all the post WGLC comments.
At a high level, the following changes were made: - Appearance number is now a positive integer, and added a recommendation that the number be rendered to the user (explicitly or implicitly) - Added a Usage Scenario for changing UAs. - Updated for new Alert-Info URN syntax - Added use case for a dialog without an appearance number for calls to fetch 'service media' such as music on hold implemented using approaches such as [I-D.worley-service-example]. - Added handling for appearance seizure abandonment - Discussed freeing up appearance number if an INVITE is proxied to another AOR. - Noted that only one appearance parameter can appear in an Alert-Info header field. See the diff for the full details. Comments and feedback most welcome! - Alan - On 7/12/10 4:45 PM, [email protected] wrote: > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Basic Level of Interoperability for SIP > Services Working Group of the IETF. > > > Title : Shared Appearances of a Session Initiation Protocol > (SIP) Address of Record (AOR) > Author(s) : A. Johnston, et al. > Filename : draft-ietf-bliss-shared-appearances-06.txt > Pages : 66 > Date : 2010-07-12 > > This document describes the requirements and implementation of a > group telephony feature commonly known as Bridged Line Appearance > (BLA) or Multiple Line Appearance (MLA), or Shared Call/Line > Appearance (SCA). When implemented using the Session Initiation > Protocol (SIP), it is referred to as shared appearances of an Address > of Record (AOR) since SIP does not have the concept of lines. This > feature is commonly offered in IP Centrex services and IP-PBX > offerings and is likely to be implemented on SIP IP telephones and > SIP feature servers used in a business environment. This feature > allows several user agents (UAs) to share a common AOR, learn about > calls placed and received by other UAs in the group, and pick up or > join calls within the group. This document discusses use cases, > lists requirements and defines extensions to implement this feature. > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-bliss-shared-appearances-06.txt > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > Below is the data which will enable a MIME compliant mail reader > implementation to automatically retrieve the ASCII version of the > Internet-Draft. > > > > _______________________________________________ > I-D-Announce mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt _______________________________________________ BLISS mailing list [email protected] https://www.ietf.org/mailman/listinfo/bliss
