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TR 24.880 (CT1)
Media server control using the IP Multimedia (IM) Core Network (CN) subsystem – Stage 3

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(W-zip) V8.2.0    2008/06    52 p.


Rapporteur:  Mr. Drage, Keith
See also:  –


This TR describes the implementation options and requirements for a media server control protocol to be used with the Mr and ISC interfaces. This TR includes the study of the following items:
  • Define the requirements for a media server control protocol.
  • Consider existing standards work that should be studied for the definition of a media server control protocol.
  • Study and determine whether the media server control protocol should be carried in SIP or whether SIP should be used to setup a dedicated control interface.
  • Study whether the AS directing the SIP session to the MRFC is always the same SIP-AS that should control the MRFC.
  • Determine whether the media server control protocol should have a package naming and extension capability (similar to H.248 packages) to allow the support and registration of different media processing capabilities.
  • Determine the SIP call flows and SDP capabilities associated with the media server control protocol and whether these SIP messages need to be passed through a S-CSCF proxy function or whether it is more efficient to have a direct AS-MRFC interface.
This TR will be used to move into the specification phase for a media server control protocol.


 

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1   Scope   Word-p. 6
2   References
3   Definitions and abbreviations   Word-p. 8
4   Media server control protocol study items   Word-p. 9
5   MRFC deployment scenarios   Word-p. 27

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