Tech-invite 3GPPspace IETFspace

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Content for TS 24.237 Word version: 18.0.0

1… 4… 5… 6… 6A… 7… 8… 9… 10… 11… 12… 13… A…

6A.1 Introduction 6A.2 UE roles 6A.3 ATCF 6A.4 SCC AS 6A.5 SDP media description conflict between target and remote access leg 6A.6 Indicating traffic leg 6A.7 MSC server
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6A Roles for General Capabilities p. 40

6A.1 Introduction p. 40

6A.2 UE roles p. 40

6A.2.1 Operator policy enforcement |R12| p. 40

6A.2.2 Signalling elements |R12| p. 40

6A.2.2.1 Common SIP message set up procedures p. 40

6A.2.2.2 SIP INVITE request p. 41

6A.3 ATCF |R10| p. 41

6A.3.1 SRVCC information bound to the registration path p. 41

6A.4 SCC AS |R10| p. 42

6A.4.1 Common SIP message set up procedures p. 42

6A.4.2 SIP INVITE request |R11| p. 42

6A.4.3 SIP INVITE responses towards the SC UE |R11| p. 42

6A.4.3A SIP INVITE responses towards the MSC server p. 44

6A.4.4 Handling of OMR specific attributes |R11| p. 45

6A.4.5 Target refresh request for a dialog and associated responses |R11| p. 45

6A.4.6 Rejecting malicious SIP REFER requests from remote UE p. 46

6A.4.7 Protecting from malicious SIP INFO requests with remote leg information from remote UE |R12| p. 46

6A.4.8 Precondition and access transfer |R12| p. 46

6A.5 SDP media description conflict between target and remote access leg p. 47

6A.6 Indicating traffic leg |R12| p. 47

6A.6.1 The SCC AS server procedure for indicating traffic leg p. 47

6A.6.2 The MSC server procedure for indicating traffic leg p. 47

6A.6.3 The ATCF server procedure for indicating traffic leg p. 48

6A.7 MSC server |R12| p. 48

6A.7.1 Precondition and access transfer p. 48