ETSI TS 129 292 V15.5.0 (2019-10)

ETSI TS 129 292 V15.5.0 (2019-10)






TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Interworking between the IP Multimedia (IM)
Core Network (CN) subsystem (IMS)
and MSC Server for IMS Centralized Services (ICS)
(3GPP TS 29.292 version 15.5.0 Release 15)

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3GPP TS 29.292 version 15.5.0 Release 15 1 ETSI TS 129 292 V15.5.0 (2019-10)



Reference
RTS/TSGC-0329292vf50
Keywords
LTE,UMTS
ETSI
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Sous-Préfecture de Grasse (06) N° 7803/88

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© ETSI 2019.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and
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®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

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3GPP TS 29.292 version 15.5.0 Release 15 2 ETSI TS 129 292 V15.5.0 (2019-10)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities. These shall be
interpreted as being references to the corresponding ETSI deliverables.
The cross reference between 3GPP and ETSI identities can be found under http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 29.292 version 15.5.0 Release 15 3 ETSI TS 129 292 V15.5.0 (2019-10)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 7
1 Scope . 8
2 References . 8
3 Definitions and abbreviations . 11
3.1 Definitions . 11
3.2 Abbreviations . 11
4 Interworking overview . 12
4.1 Interworking reference model . 12
4.2 Interworking reference points and interfaces . 12
4.3 Interworking functional entities . 13
4.3.1 MSC Server enhanced for ICS . 13
4.3.2 Circuit Switched Media Gateway Function (CS-MGW) . 13
4.4 Control plane interworking. 13
4.5 User plane interworking . 13
5 Control plane procedures and interworking . 13
5.1 General . 13
5.2 IMS registration procedures interworking . 14
5.2.1 Initial registration . 14
5.2.2 Reregistration . 14
5.2.3 MSC Server initiated deregistration . 14
5.3 Interworking of mobile originating call setup from NAS signalling to SIP . 15
5.3.1 General . 15
5.3.2 Receipt of a setup message . 15
5.3.3 Sending of INVITE . 15
5.3.3.1 General . 15
5.3.3.2 Coding of INVITE . 15
5.3.3.3 Coding of the SDP offer . 17
5.3.3.4 Actions on the SDP answer . 17
5.3.4 Sending of ALERTING . 17
5.3.4a Sending of PROGRESS . 17
5.3.4b Through-Connecting early media from IMS . 18
5.3.5 Applying ringback tone . 18
5.3.6 Receipt of 200 OK (INVITE) . 18
5.3.7 Receipt of status-codes 3xx . 18
5.3.8 Receipt of SIP status-codes 4xx, 5xx or 6xx. 18
5.3.9 Receipt of DISCONNECT . 24
5.3.10 Restoration procedures . 24
5.3.11 Autonomous clearing initiated by the MSC Server . 25
5.4 Interworking of mobile terminating call setup from SIP to NAS signalling . 25
5.4.1 General . 25
5.4.2 Receipt of initial INVITE . 25
5.4.3 Sending of SETUP . 26
5.4.4 Receipt of CALL CONFIRMED . 29
5.4.5 Bearer establishment . 30
5.4.5.1 Network side bearer establishment . 30
5.4.5.2 Access bearer assignment . 30
5.4.5.3 Transcoding . 30
5.4.6 Receipt of ALERTING . 30
5.4.7 Applying early media. 30
5.4.8 Call rejection or abandonment . 31
ETSI

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3GPP TS 29.292 version 15.5.0 Release 15 4 ETSI TS 129 292 V15.5.0 (2019-10)
5.4.8.1 Receipt of RELEASE COMPLETE or DISCONNECT . 31
5.4.8.2 Receipt of CANCEL or BYE . 34
5.4.9 Receipt of CONNECT . 34
5.4.10 Call failure procedures . 34
5.4.11 Autonomous clearing initiated by the MSC Server . 34
5.5 Interworking of established call clearing between NAS signalling and SIP . 35
5.5.1 General . 35
5.5.2 Clearing initiated by the mobile . 35
5.5.3 Clearing initiated by the IM CN subsystem . 35
5.5.4 Autonomous clearing initiated by the MSC Server . 35
5.6 Supplementary Services invocation . 35
5.6.1 Originating identification presentation/restriction (OIP/OIR) . 35
5.6.2 Terminating identification presentation/restriction (TIP/TIR) . 36
5.6.2.1 Terminating identification presentation (TIP) . 36
5.6.2.2 Terminating identification restriction (TIR) . 36
5.6.3 Communication Hold (HOLD) . 37
5.6.3.1 HOLD initiated via NAS signalling . 37
5.6.3.1.1 Hold . 37
5.6.3.1.2 Resume . 37
5.6.3.2 HOLD initiated via SIP signalling . 37
5.6.3.2.1 Hold . 37
5.6.3.2.2 Resume . 38
5.6.4 Communication Waiting (CW) . 38
5.6.4.1 Receipt of initial INVITE . 38
5.6.4.2 Accepting the waiting call . 38
5.6.4.3 Rejecting the waiting call . 39
5.6.4.4 Communication release during waiting condition . 39
5.6.4.5 CW condition timeout . 39
5.6.4.6 Notification to originator . 40
5.6.5 Communication Barring (CB). 40
5.6.6 Communication Diversion . 40
5.6.6.1 General . 40
5.6.6.2 CDIV invocation . 40
5.6.6.2.1 Communication Forwarding Unconditional (CFU) . 40
5.6.6.2.2 Communication Forwarding Busy (CFB) . 40
5.6.6.2.3 Communication Forwarding No Reply (CFNR) . 40
5.6.6.2.4 Communication Forwarding on Not Logged-In (CFNL) . 41
5.6.6.2.5 Communication Deflection (CD) . 41
5.6.6.2.6 Communication Forwarding on Subscriber Not Reachable (CFNRc) . 41
5.6.6.3 Notifications relating to CDIV . 41
5.6.6.3.1 Void . 41
5.6.6.3.2 Notification to an originating user on CS access . 41
5.6.6.3.3 Notification to a terminating user on CS access . 42
5.6.7 Explicit Communication Transfer (ECT) . 43
5.6.7.1 General . 43
5.6.7.2 MSC Server as transferor on behalf of UE . 43
5.6.7.3 MSC Server as transferee on behalf of UE . 43
5.6.7.3.1 Actions without 3PCC . 43
5.6.7.3.2 Actions with 3PCC . 44
5.6.7.4 MSC Server as transfer target on behalf of UE . 44
5.6.8 Conference (CONF) . 44
5.6.8.1 General . 44
5.6.8.2 MSC Server as conference creator . 44
5.6.8.2.1 Conference creation . 44
5.6.8.2.2 Putting the conference on hold . 45
5.6.8.2.3 Resuming a held conference . 45
5.6.8.2.4 Adding a party to the conference . 45
5.6.8.2.5 Terminating the conference or disconnecting a party from the conference . 45
5.6.8.2.6 Receipt of a SplitMPTY message . 46
5.6.8.2.7 Remote party disconnects from the conference . 46
5.6.8.3 MSC Server as conference participant . 46
5.6.8.3.1 Receipt of invitation to conference . 46
ETSI

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3GPP TS 29.292 version 15.5.0 Release 15 5 ETSI TS 129 292 V15.5.0 (2019-10)
5.6.8.3.1.1 General . 46
5.6.8.3.1.2 Receipt of REFER within a dialog . 46
5.6.8.3.1.3 Receipt of REFER outside a dialog . 46
5.6.8.3.1.4 Receipt of INVITE . 47
5.6.8.3.2 Notification of conference invocation . 47
5.6.9 Customized Alerting Tones (CAT) . 47
5.6.9.1 General . 47
5.6.9.2 Early session model. 47
5.6.9.2.1 Originating request . 47
5.6.9.3 Forking model . 48
5.6.9.4 Gateway model . 48
5.6.10 Communication Completion Services (CCBS/CCNL/CCNR) . 48
5.6.10.1 General . 48
5.6.10.2 Communication Completion Terminated at Served User. 48
5.6.10.3 Communication Completion Originated at Served User . 48
5.6.10.3.1 Actions without 3PCC . 48
5.6.10.3.2 Actions with 3PCC . 48
5.7 Supplementary Service Configuration. 48
5.7.1 General . 48
5.7.2 Receipt of REGISTER message . 49
5.7.3 Receipt of HTTP response . 49
5.7.4 Service data interworking . 49
5.7.4.1 Originating identification presentation/restriction (OIP/OIR) . 49
5.7.4.1.1 Registration/erasure . 49
5.7.4.1.2 Activation/deactivation . 49
5.7.4.1.3 Interrogation . 49
5.7.4.2 Terminating identification presentation/restriction (TIP/TIR) . 50
5.7.4.2.1 Registration/erasure . 50
5.7.4.2.2 Activation/deactivation . 50
5.7.4.2.3 Interrogation . 50
5.7.4.3 Communication Hold (HOLD) . 50
5.7.4.4 Communication Waiting (CW) . 51
5.7.4.4.1 Registration/erasure . 51
5.7.4.4.2 Activation/deactivation . 51
5.7.4.4.3 Interrogation . 51
5.7.4.5 Communication Barring (CB) . 51
5.7.4.5.1 Registration/erasure . 51
5.7.4.5.2 Activation/deactivation . 52
5.7.4.5.3 Interrogation . 53
5.7.4.6 Communication Diversion (CDIV) . 53
5.7.4.6.1 Registration . 53
5.7.4.6.1a Erasure . 54
5.7.4.6.2 Activation/deactivation . 55
5.7.4.6.3 Interrogation . 55
5.7.4.7 Explicit Communication Transfer (ECT) . 56
5.7.4.8 Conference (CONF) .
...