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The BLISS working group will coordinate closely with the SIP, SIPPING and SIMPLE working groups. Like SIPPING, its role is to focus on applications of the SIP protocol and not on core extensions to SIP itself. The difference between SIPPING and BLISS, is that BLISS is focused on a particular type of SIP application - call features, and in particular, advanced call features requiring non-trivial call control. SIP applications such as configuration, presence, SIP extensions for IM, and session policy are clearly out of scope for BLISS and remain the sole province of either SIPPING or SIMPLE. Of course, any features considered by BLISS will support the full range of multimedia supported by SIP - audio, video, text, messaging, and so on. |