TS 24.528
TISPAN; Common Basic Communication procedures;
Protocol specification
V8.3.0 (PDF)
2012/12 52 p.
- Rapporteur:
- Mr. Leis, Peter
full Table of Contents for TS 24.528 Word version: 8.3.0
1 Scope p. 6
2 References p. 6
3 Definitions and abbreviations p. 7
3.1 Definitions p. 7
3.2 Abbreviations p. 8
4 Common basic communication procedures p. 8
4.1 Introduction p. 8
4.2 Announcement p. 9
4.2.1 General p. 9
4.2.2 Providing announcements to a user during the establishment of a communication session p. 9
4.2.3 Providing announcements to a user during an established communication session p. 9
4.2.4 Communication request rejected by AS p. 9
4.2.5 Providing announcements to a user during the release of a communication session p. 9
4.3 Alternative ring tone p. 10
4.4 Network Determined User Busy (NDUB) p. 10
4.4a Special REFER request handling procedures p. 10
4.5 Operational requirements p. 11
4.5.1 Provision/withdrawn p. 11
4.5.2 Requirements on the originating network side p. 11
4.5.3 Requirements on the terminating network side p. 11
4.6 Coding requirements p. 11
4.7 Signalling procedures p. 11
4.7.1 Activation, deactivation and registration p. 11
4.7.2 Invocation and operation p. 12
4.7.2.1 Actions at the originating UE p. 12
4.7.2.2 Actions at the originating P-CSCF p. 12
4.7.2.3 Actions at the S-CSCF serving the originating user p. 12
4.7.2.4 Actions at the incoming I-CSCF p. 12
4.7.2.5 Actions at the outgoing IBCF p. 12
4.7.2.6 Actions at the incoming IBCF p. 12
4.7.2.7 Actions at the destination P-CSCF p. 12
4.7.2.8 Actions at the S-CSCF serving the terminating UE p. 12
4.7.2.9 Actions at the AS p. 13
4.7.2.9.1 Providing announcements during an established communication session p. 13
4.7.2.9.2 Providing announcements during the establishment of a communication session p. 13
4.7.2.9.3 Providing announcements when communication request is rejected by the AS p. 13
4.7.2.9.4 Providing alternative ring tone during the establishment of a communication session p. 13
4.7.2.9.5 Early dialog procedures at the AS p. 13
4.7.2.9.6 Providing announcements during the release of a communication session p. 13
4.7.2.9.7 Starting special REFER handling procedures at the AS of the initiator of the REFER request p. 14
4.7.2.10 Action at the terminating UE p. 15
4.8 Interactions with other networks p. 16
4.8.1 Interaction with PSTN/ISDN p. 16
4.8.2 Interworking with PSTN/ISDN Emulation p. 16
4.8.3 Interaction with external IP network p. 16
4.9 Signalling flows p. 16
4.10 Parameter values (timers) p. 17
A Signalling flows for announcements p. 18
A.1 Providing announcements to a user during the establishment of a communication session p. 18
A.1.1 Providing in-band announcement p. 18
A.1.2 Including Alert-Info header field in the 180 (Ringing) response p. 21
A.1.3 Announcements provided by the PSTN/ISDN p. 22
A.1.4 Announcement provided towards a user connected to the PSTN/ISDN p. 24
A.2 Providing announcements to a user during an established communication p. 25
A.3 Communication request rejected p. 28
A.3.1 Sending the announcement as in-band information p. 28
A.3.2 Including an Error-Info header field in a 3xx, 4xx, 5xx and 6xx response p. 32
A.3.3 Announcements provided by the PSTN/ISDN p. 34
A.3.4 Announcement provided to a user connected to the PSTN/ISDN p. 34
A.4 Providing announcements to a user during the release of a communication session p. 34
B Signalling flows for Network Determined User Busy (NDUB) p. 38
B.1 Basic call with UE busy with T-AS involvement (NDUB condition check) p. 38
B.2 Busy condition (NDUB) detected by terminating AS p. 39
C (Normative) Void
D (Normative) Application Server (AS) establishing multiple dialogs with originating UE p. 42
D.1 General p. 42
E Signalling flows for 3rd party call control p. 43
F Bibliography p. 49
$ Change history p. 50
