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TS 24.379 (CT1)
Mission Critical Push To Talk (MCPTT) Call Control –
Protocol specification

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V16.2.0 (Wzip)2019/09  579 p.
V15.6.0 (PDF)  2019/06  583 p.
V14.10.0  2019/06  537 p.
V13.13.0  2019/06  481 p.

Rapporteur:  Mr. Kaura, Ricky

This document specifies the session control protocols needed to support Mission Critical Push To Talk (MCPTT). It specifies both on-network and off-network protocols.
Mission critical communication services are services that require preferential handling compared to normal telecommunication services, e.g. in support of police or fire brigade. The MCPTT service can be used for public safety applications and also for general commercial applications (e.g., utility companies and railways). This document is applicable to User Equipment (UE) supporting the MCPTT client functionality, and to application servers supporting the MCPTT server functionality.

short Table of Contents for  TS 24.379  Word version:   16.2.0

each title links to the equivalent title in the full ToC


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1  ScopeWord-p. 24
2  ReferencesWord-p. 24
3  Definitions, symbols and abbreviationsWord-p. 27
4  GeneralWord-p. 31
5  Functional entitiesWord-p. 48
6  Common proceduresWord-p. 53
6.1  IntroductionWord-p. 53
6.2  MCPTT client proceduresWord-p. 53
6.3  MCPTT server proceduresWord-p. 75
6.4  Implicit floor requestWord-p. 132
6.5  Handling of MIME bodies in a SIP messageWord-p. 133
6.6  Confidentiality and Integrity ProtectionWord-p. 134
6.7  Priority sharingWord-p. 142
7  Registration and service authorisationWord-p. 142
8  Pre-established sessionWord-p. 155
9  AffiliationWord-p. 161
9A  Functional Alias [R15]Word-p. 193
10  Group callWord-p. 209
10.0  GeneralWord-p. 209
10.1  On-network group callWord-p. 210
10.2  Off-network group callWord-p. 307
10.3  Off-network Broadcast group callUpWord-p. 333
11  Private callWord-p. 339
11.0  GeneralWord-p. 339
11.1  On-network private call and first-to-answer callUpWord-p. 339
11.2  Off-network private callWord-p. 404
12  Emergency alertWord-p. 427
13  Location proceduresWord-p. 442
14  MBMS transmission usage procedureWord-p. 446
14A  MCPTT Service ContinuityWord-p. 458
15  Off-network message formatsUpWord-p. 460
A  Signalling flowsWord-p. 476
B (Normative)  TimersWord-p. 496
C (Normative)  CountersWord-p. 504
D (Normative)  Media feature tags and feature-capability indicators used within the current documentWord-p. 506
E (Normative)  ICSI values defined within the current documentWord-p. 508
F (Normative)  XML schemasWord-p. 509
G  States managed by the MCPTT client and MCPTT serverWord-p. 542
H  On-network routing considerationsWord-p. 553
I (Normative)  MCPTT Off-Network Protocol (MONP) message coding rulesWord-p. 555
J  INFO packages defined in the present documentUpWord-p. 562
K  IANA UDP port registration formWord-p. 566
L  Change historyWord-p. 568

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