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TS 29.379CT1
MCPTT Call Control Interworking with LMR systems

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V16.0.0 (Wzip)2019/12  149 p.

WI Acronym:  MCCI_CT
Rapporteur:  Mr. Monnes, Peter

The present document specifies the call control protocols needed to support a Mission Critical Push To Talk (MCPTT) system interworking with a Land Mobile Radio (LMR) system.
The IWF supports the basic group and other features as specified in TS 23.283. The present document describes functionality modelled on TS 24.379.

full Table of Contents for  TS 29.379  Word version:   16.0.0

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1  ScopeWord-p. 11
2  References
3  Definitions of terms, symbols and abbreviationsWord-p. 12
4  General
5  Functional entities
6  Call control common proceduresWord-p. 17
6.1  SDP
6.2  Commencement modesWord-p. 18
6.3  Receiving an MCPTT session release requestWord-p. 19
6.4  Priority call conditions
6.5  Location informationWord-p. 26
6.6  IWF server role proceduresWord-p. 27
6.6.1  Distinction of requests sent to the IWF
6.6.2  IWF participating roleWord-p. 28
6.6.3  IWF controlling role
6.6.3.1  Requests initiated by the IWF performing the controlling role
6.6.3.1.1  Sending an INVITE request
6.6.3.1.2  Sending a SIP BYE request
6.6.3.1.3  Sending a SIP re-INVITE request for MCPTT emergency group callWord-p. 33
6.6.3.1.4  Sending a SIP INVITE request for MCPTT emergency group callWord-p. 34
6.6.3.1.5  Sending a SIP UPDATE request for Resource-Priority header field correctionWord-p. 35
6.6.3.1.6  Generating a SIP re-INVITE request to cancel an in-progress emergencyWord-p. 36
6.6.3.1.7  Populate mcptt-info and location-info MIME bodies for emergency alert
6.6.3.1.8  Authorisations
6.6.3.1.9  Generating a SIP 403 response for priority call request rejectionWord-p. 40
6.6.3.1.10  Handling the expiry of timer TNG2 (in-progress emergency group call timer)
6.6.3.1.11  Sending a SIP INFO request in the dialog of a SIP request for a priority callWord-p. 41
6.6.3.1.12  Retrieving Resource-Priority header field values
6.6.3.2  Requests terminated by the IWF performing the controlling role
6.6.3.3  Handling of the acknowledged call setup timer (TNG1)Word-p. 42
6.6.3.4  Generating a SIP NOTIFY requestWord-p. 44
6.6.3.5  Handling of the group call timer (TNG3)Word-p. 45
6.6.4  IWF non-controlling roleWord-p. 46
6.6.5  Retrieving and processing a group documentWord-p. 51
6.6.6  Error handling
6.6.7  Session release policyUp
6.7  Implicit floor request
6.8  Confidentiality and Integrity Protection
6.9  Priority sharing
6.10  Private call parametersWord-p. 55
7  Registration and service authorisation
8  Pre-established session
9  AffiliationWord-p. 56
9.1  General
9.2  Procedures
9.2.1  IWF procedures towards the MCPTT system
9.2.1.1  General
9.2.1.2  Procedures towards the MCPTT system of an IWF serving the user homed in the IWFWord-p. 57
9.2.1.3  Procedures of MCPTT server owning the MCPTT group
10  Call signalling - group callWord-p. 73
10.1  Prearranged group call
10.1.2  Client derived procedures
10.1.3  IWF participating role proceduresWord-p. 79
10.1.4  IWF Controlling role procedures
10.1.5  Non-controlling role proceduresWord-p. 100
10.2  Chat group (restricted) call
10.2.1  Client derived proceduresUp
10.2.2  IWF performing the participating role proceduresWord-p. 105
10.2.3  IWF controlling role procedures
10.2.4  Non-controlling role procedures
10.3  Subscription to the conference event packageUp
10.4  Remotely initiated group call
11  Private call call controlWord-p. 120
11.1  Private call with floor control
11.2  Private call without floor controlWord-p. 134
11.3  Ending the private call initiated by a client
11.4  Ending the private call initiated by the MCPTT serverWord-p. 135
12  Emergency alert
13  Location proceduresWord-p. 142
14  Handling of Interworking Security Data messagesWord-p. 143
A (Normative)  XML SchemaWord-p. 145
B (Normative)  IANA registration formsWord-p. 147
C  Change historyWord-p. 149

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