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TS 24.237 (CT1)
IMS Service Continuity –
Stage 3

use "3GPP‑Page" to get the Word version
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
V16.2.0 (Wzip)2019/09  508 p.
V15.6.0 (PDF)2019/09  511 p.
V14.7.0  2019/03  495 p.
V13.6.0  2016/12  485 p.
V12.14.0  2016/12  471 p.
V11.17.0  2016/12  393 p.
V10.20.0  2015/12  236 p.
V9.20.0  2015/06  211 p.
V8.14.0  2013/09  78 p.

Rapporteur:  Mr. Kaura, Ricky

IP Multimedia (IM) Core Network (CN) subsystem Service Continuity (SC) provides the capability of continuing ongoing communication sessions with multiple media across different access networks.
This TS provides the protocol details for enabling IMS SC based on the Session Initiation protocol (SIP) and the Session Description Protocol (SDP) and the protocols of the 3GPP Circuit-Switched (CS) domain (e.g. CAP, MAP, ISUP, BICC and the NAS call control protocol for the CS access).
This TS is applicable to User Equipment (UEs), Application Servers (AS), MSC Servers providing IMS Service Continuity capabilities, Emergency Access Transfer Function (EATF), Access Transfer Control Function (ATCF).

short Table of Contents for  TS 24.237  Word version:   16.2.0

each title links to the equivalent title in the full ToC

 

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1  ScopeWord-p. 16
2  ReferencesWord-p. 16
3  Definitions and abbreviations [R15]Word-p. 20
4  Overview of IP Multimedia (IM) Core Network (CN) subsystem Service ContinuityWord-p. 24
5  Functional entitiesWord-p. 27
6  Roles for registration in the IM CN subsystem for service continuityWord-p. 31
6A  Roles for General CapabilitiesWord-p. 39
7  Roles for call origination for service continuityUpWord-p. 48
8  Roles for call termination for service continuityWord-p. 56
9  Roles for PS-CS access transferWord-p. 63
10  Roles for PS-PS access transferWord-p. 108
11  Roles for PS-PS access transfer in conjunction with PS-CS access transferWord-p. 120
12  Roles for PS-CS access transfer, Single RadioWord-p. 124
12.1  IntroductionWord-p. 124
12.2  SC UE procedures for PS to CS access transfer, PS to CS SRVCCWord-p. 125
12.2A  SC UE procedures for PS to CS access transfer, vSRVCC [R11]Word-p. 135
12.2B  SC UE procedures for CS to PS SRVCC [R11]Word-p. 137
12.3  SCC ASWord-p. 142
12.4  MSC server enhanced for ICS [R9]Word-p. 182
12.4A  MSC server assisted mid-call feature [R10]Word-p. 188
12.5  EATF [R9]Word-p. 192
12.6  MSC server enhanced for SRVCC using SIP interface [R9]Word-p. 199
12.7  Access Transfer Control Function (ATCF) [R10]Word-p. 209
13  Roles for media adding/deleting for access transferWord-p. 233
14Void
15Void
16Void
17Void
18Void
19Void
20  Service continuity and MMTEL interactions [R9]Word-p. 235
21Void
22  Roles for detection of remote leg information [R12]Word-p. 240
A  Example signalling flowsWord-p. 242
A.1  Scope of signalling flowsWord-p. 242
A.2  IntroductionWord-p. 242
A.3  Signalling flows for registrationWord-p. 243
A.4  Signalling flows for call origination for service continuityWord-p. 267
A.5  Signalling flows for call termination for service continuityWord-p. 278
A.6  Signalling flows for PS-CS access transferWord-p. 285
A.7  Signalling flows for PS-PS access transferWord-p. 292
A.8  Signalling flows for PS-PS access transfer in conjunction with PS-CS access transferWord-p. 316
A.9  Signalling flows for media adding/deleting for access transferWord-p. 327
A.10Void
A.11Void
A.12Void
A.13Void
A.14Void
A.15  Signalling flows for MSC server assisted mid-call feature [R10]Word-p. 331
A.16  Signalling flows for PS to CS SRVCC session transfer for IMS emergency session [R9]Word-p. 351
A.17  Signalling flows for the PS to CS SRVCC for calls in alerting phase [R10]Word-p. 361
A.18  Signalling flows for PS to CS Access Transfer: PS to CS SRVCC enhancements using ATCF [R10]Word-p. 391
A.19  Signalling flows for vSRVCC [R11]Word-p. 413
A.20  Signalling flows for CS to PS Access Transfer: using CS to PS SRVCC [R11]Word-p. 415
BVoid
C (Normative)  Media feature tags and feature-capability indicators defined within the current document [R9]Word-p. 431
D  XML schemas [R10]Word-p. 448
E  INFO packages defined in the current document [R10]Word-p. 470
F  Access transfer scenarios [R12]Word-p. 477
G  Indication of support for access transfer features [R12]Word-p. 490
H  Change historyWord-p. 496

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