[BLISS] I-D Action:draft-ietf-bliss-call-completion-10.txt
Internet-Drafts@ietf.org Fri, 06 May 2011 12:00 UTC
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Subject: [BLISS] I-D Action:draft-ietf-bliss-call-completion-10.txt
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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 : Call Completion for Session Initiation Protocol (SIP) Author(s) : D. Worley, et al. Filename : draft-ietf-bliss-call-completion-10.txt Pages : 31 Date : 2011-05-06 The call completion features allow the calling user of a failed call to be notified when the called user becomes available to receive a call. For the realization of a basic solution without queuing call- completion requests, this document references the usage of the the dialog event package (RFC 4235) that is described as 'automatic redial' in the SIP Service Examples (RFC 5359). For the realization of a more comprehensive solution with queuing call-completion requests, this document introduces an architecture for implementing these features in the Session Initiation Protocol: "Call completion" implementations associated with the caller's and callee's endpoints cooperate to place the caller's request for call completion into a queue at the callee's endpoint, and, when a caller's request is ready to be serviced, re-attempt the original, failed call. The deployment of a certain SIP call-completion solution is also dependent on the needed level of interoperability with existing call- completion solutions in other networks. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-bliss-call-completion-10.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.
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