[BLISS] I-D Action:draft-ietf-bliss-problem-statement-01.txt

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           : Basic Level of Interoperability for Session Initiation Protocol (SIP) Services (BLISS) Problem Statement
	Author(s)       : J. Rosenberg
	Filename        : draft-ietf-bliss-problem-statement-01.txt
	Pages           : 19
	Date            : 2007-11-19

The Session Initiation Protocol (SIP) has been designed as a general
purpose protocol for establishing and managing multimedia sessions.
It provides many core functions and extensions in support of features
such as transferring of calls, parking calls, and so on.  However,
interoperability of more advanced features between different vendors
has been poor.  This document describes the reason behind these
interoperability problems, and presents a framework for addressing
them.

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