The present document specifies the stage three Protocol Description of the Closed User Group (CUG) service, based onstage one and two of the ISDN Communication diversion supplementary services. It provides the protocol details in theIP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the SessionDescription Protocol (SDP).
The present document is applicable to User Equipment (UE) and Application Servers (AS) which are intended tosupport the CUG supplementary service.
- Edition:
- 13.0.0
- Published:
- 01/01/2016
- Number of Pages:
- 22
- File Size:
- 1 file , 110 KB
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