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TS 24.228 – §6.7.1   List   Prev   Next
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IMS R5 Registration signalling flow - Network-initiated deregistration event occuring in the S-CSCF - sequence chart for IMS R5-3. SIP NOTIFY request
  • S-CSCF1 also sends a NOTIFY request towards P-CSCF1 to which UE1 is attached to, in order to inform about the network initiated deregistration. The same Request URI, To, From, Call-ID are used as in the first NOTIFY request. CSeq is incremented since this is the second NOTIFY request sent towards P-CSCF1.