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TS 23.379
Functional architecture and information flows
to support Mission Critical Push To Talk (MCPTT)

3GPP‑Page   ETSI‑search   eToC↓   LoFT↓   CONTENT →
V19.7.0 (Wzip)  2025/06  … p.
V18.13.0 (PDF)  2025/06  … p.
V17.11.0  2023/12  252 p.
V16.6.1  2020/06  245 p.
V15.6.0  2019/06  202 p.
V14.7.0  2018/09  184 p.
Rapporteur:
Mr. Negalaguli, Harish
Motorola Solutions UK Ltd.

essential Table of Contents for  TS 23.379  Word version:  19.6.0

each title, in the "available" or "not available yet" area, links to the equivalent title in the CONTENT
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List of Figures and Tables

Figure 7.3.1-1Functional model for application plane of the MCPTT service
Figure 7.3.1-2Relationships between reference points of MCPTT application and signalling control planes
Figure 7.3.2-1Functional model for off-network operation of MCPTT service
Figure 10.2-1MCPTT user authentication and registration, single domain
Table 10.4.2.1-1Group selection change request
Table 10.4.2.2-1Group selection change response
Table 10.4.2.3-1Group selection change notification
Figure 10.4.3-1Remotely change MCPTT group selection - mandatory mode
Table 10.5.2.1-1Create pre-established session request
Table 10.5.2.1-2Create pre-established session response
Table 10.5.2.2-1Modify pre-established session request
Table 10.5.2.2-2Modify pre-established session response
Table 10.5.2.3-1Release pre-established session request - client initiated
Table 10.5.2.3-2Release pre-established session response - client initiated
Table 10.5.2.4-1Release pre-established session release request - server initiated
Table 10.5.2.4-2Release pre-established session response - server initiated
Table 10.5.2.5-1Pre-established session call connect request
Table 10.5.2.6-1Pre-established session call disconnect request
Figure 10.5.3.2.1-1Connect procedure
Figure 10.5.3.2.2-1Disconnect procedure
Table 10.6.2.2.1-1MCPTT emergency group call request information elements
Table 10.6.2.2.1a-1MCPTT emergency group call response information elements
Table 10.6.2.2.2-1MCPTT in-progress emergency group state cancel request information elements
Table 10.6.2.2.2a-1MCPTT in-progress emergency group state cancel response information elements
Table 10.6.2.2.5-1MCPTT imminent peril group call request information elements
Table 10.6.2.2.5a-1MCPTT imminent peril group call response information elements
Table 10.6.2.2.6-1MCPTT in-progress imminent peril group state cancel request information elements
Table 10.6.2.2.6a-1MCPTT in-progress imminent peril group state cancel response information elements
Table 10.6.2.2.7-1Group call request information elements
Table 10.6.2.2.8-1Group call request information elements
Table 10.6.2.2.9-1Group call request information elements
Table 10.6.2.2.10-1Group call response information elements
Table 10.6.2.2.11-1Group call response information elements
Table 10.6.2.2.12-1Group call response information elements
Table 10.6.2.2.13-1Group call notify information elements
Table 10.6.2.2.14-1Group call release request information elements
Table 10.6.2.2.14a-1Group call release request information elements
Table 10.6.2.2.15-1Group call release request information elements
Table 10.6.2.2.16-1Group call release response information elements
Table 10.6.2.2.17-1Group call release response information elements
Table 10.6.2.2.18-1Group call rejoin request information elements
Table 10.6.2.2.19-1Group call rejoin response information elements
Table 10.6.2.2.20-1Group join request information elements
Table 10.6.2.2.21-1Group join response information elements
Table 10.6.2.2.22-1Group call leave request information elements
Table 10.6.2.2.22a-1Group call leave request information elements
Table 10.6.2.2.23-1Group call leave response information elements
Table 10.6.2.2.23a-1Group call leave response information elements
Table 10.6.2.2.24-1Group interrogate request information elements
Table 10.6.2.2.25-1Group interrogate response information elements
Table 10.6.2.2.26-1Group-broadcast group call request information elements
Table 10.6.2.2.27-1Group-broadcast group call request information elements
Table 10.6.2.2.28-1Group-broadcast group call response information elements
Table 10.6.2.2.29-1Group-broadcast group call response information elements
Table 10.6.2.2.30-1Group-broadcast group call release request information elements
Table 10.6.2.2.31-1Group-broadcast group call release request information elements
Table 10.6.2.2.32-1Group-broadcast group call release response information elements
Table 10.6.2.2.33-1Group-broadcast group call release response information elements
Table 10.6.2.2.51-1MCPTT emergency floor remote trigger information elements
Table 10.6.2.2.51-2MCPTT emergency floor remote trigger information elements
Figure 10.6.2.3.1.1.2-1Pre-arranged group call setup
Figure 10.6.2.3.1.1.3-1Release pre-arranged group call
Figure 10.6.2.3.1.1.4-1Late entry pre-arranged group call
Figure 10.6.2.3.1.1.5-1Rejoin call
Figure 10.6.2.3.1.2.2-1MCPTT chat group call
Figure 10.6.2.3.1.2.3-1Release chat group call
Figure 10.6.2.3.1.2.4-1Late entry of a newly joined group member
Figure 10.6.2.3.1.2.5-1Late entry of a MCPTT client returning from out of coverage
Figure 10.6.2.3.2-1Exiting MCPTT group call due to de-affiliation
Figure 10.6.2.3.3-1MCPTT user leaving a group call
Figure 10.6.2.4.1.1.1-1Group call setup involving non-broadcast temporary groups from multiple MCPTT systems (originating)
Figure 10.6.2.4.1.1.2-1Non-broadcast group call involving groups from multiple MCPTT systems (terminating)
Figure 10.6.2.4.1.2-1Group call release involving groups from multiple MCPTT systems
Figure 10.6.2.4.2-1Group call involving non-broadcast temporary group formed by group regroup from multiple MCPTT systems
Figure 10.6.2.4.3.1-1Pre-arranged group call setup for an MCPTT group defined in partner MCPTT system (initiating)
Figure 10.6.2.4.3.2-1Pre-arranged group call setup for an MCPTT group defined in partner MCPTT system (terminating)
Figure 10.6.2.4.3.3-1Chat group call setup for an MCPTT group defined in partner MCPTT system
Figure 10.6.2.4.4-1Merging of groups involving multiple MCPTT systems
Figure 10.6.2.5.2-1Broadcast group call
Figure 10.6.2.5.2.1-1Group-broadcast group call
Figure 10.6.2.5.2.2-1Group-broadcast group call when an emergency group call is on-going in one of the subordinate groups
Figure 10.6.2.5.2.3-1Group-broadcast group call transmission ended
Figure 10.6.2.5.2.4-1Server-initiated broadcast group call release
Figure 10.6.2.5.4-1Group call involving a broadcast temporary group across multiple MCPTT systems
Figure 10.6.2.6.1.1-1MCPTT emergency group call
Figure 10.6.2.6.1.2-1MCPTT group call upgraded to an MCPTT emergency group call
Figure 10.6.2.6.1.3-1MCPTT in-progress emergency group state cancel
Figure 10.6.2.6.2.1-1MCPTT imminent peril group call
Figure 10.6.2.6.2.2-1MCPTT group call upgrade to an imminent peril group call
Figure 10.6.2.6.2.3-1MCPTT in-progress imminent peril group state cancel
Figure 10.6.2.6.4-1MCPTT emergency floor remote trigger
Figure 10.6.2.7-1Providing location information of the current talker
Figure 10.6.2.9.5.1-1Procedure for call request to an MCPTT group during an in-progress preconfigured group regroup
Figure 10.6.2.9.5.2-1Procedure for Call request to a regroup group after the group regroup is cancelled
Figure 10.6.2.10.2-1User regroup using group creation procedure
Figure 10.6.2.11.2-1Broadcast group regroup call using preconfigured group in a single MCPTT system
Table 10.6.3.2.1-1Group call announcement
Table 10.6.3.2.2-1MCPTT upgrade to emergency call
Table 10.6.3.2.3-1MCPTT emergency group state cancel
Table 10.6.3.2.4-1Response
Table 10.6.3.2.7-1MCPTT upgrade to imminent peril call
Table 10.6.3.2.8-1MCPTT imminent peril group call cancel
Figure 10.6.3.3-1Off-network group call setup
Figure 10.6.3.4-1Passive join to group call
Figure 10.6.3.5-1Late entry join when receiving MCPTT group call announcement with on-going MCPTT group ID
Figure 10.6.3.6-1Immediate group call announcement to join an ongoing group call
Figure 10.6.3.8.1-1Broadcast group call in off-network
Table 10.7.2.1.1-1MCPTT private call request (MCPTT client to MCPTT server) information elements
Table 10.7.2.1.2-1MCPTT private call request (MCPTT server to MCPTT server) information elements
Table 10.7.2.1.2aMCPTT private call request (MCPTT server to MCPTT client) information elements
Table 10.7.2.1.3-1MCPTT private call response (MCPTT client to MCPTT server) information elements
Table 10.7.2.1.4-1MCPTT private call response information elements
Table 10.7.2.1.4a-1MCPTT private call end request information elements
Table 10.7.2.1.4b-1MCPTT private call end response information elements
Table 10.7.2.1.5-1MCPTT emergency private call request (MCPTT client to MCPTT server) information elements
Table 10.7.2.1.5a-1MCPTT emergency private call request (MCPTT server to MCPTT client) information elements
Table 10.7.2.1.6-1MCPTT progress indication information elements
Table 10.7.2.1.7-1MCPTT ringing information elements
Table 10.7.2.1.8-1MCPTT functional alias resolution response information elements
Table 10.7.2.1.9-1MCPTT private call cancel request (MCPTT server to MCPTT client) information elements
Table 10.7.2.1.10-1MCPTT private call cancel response (MCPTT client to MCPTT server)
Table 10.7.2.1.11-1MCPTT emergency private call floor remote trigger information elements (MCPTT client to MCPTT server)
Table 10.7.2.1.12-1MCPTT emergency private call floor remote trigger information elements (MCPTT server to MCPTT client)
Figure 10.7.2.2.1-1Private call setup in automatic commencement mode- MCPTT users in the same MCPTT system
Figure 10.7.2.2.2.2-1MCPTT private call in manual commencement mode- MCPTT users in the same MCPTT system
Figure 10.7.2.2.3.1-1Private call release - client initiated
Figure 10.7.2.2.3.2-1End private call - server initiated
Figure 10.7.2.3.1-1Private call setup in automatic commencement mode - users in multiple MCPTT systems
Figure 10.7.2.3.2-1Private call setup in manual commencement mode - users in multiple MCPTT systems
Figure 10.7.2.4.1-1MCPTT emergency private call
Figure 10.7.2.4.2-1MCPTT private call upgrade
Figure 10.7.2.4.3-1MCPTT emergency private call floor remote trigger
Table 10.7.3.1.1-1call setup request
Table 10.7.3.1.2-1call setup response
Table 10.7.3.1.3-1call release request
Table 10.7.3.1.4-1Call release response
Figure 10.7.3.3-1Private call setup in automatic commencement mode
Figure 10.7.3.4-1Private call setup in manual commencement mode
Figure 10.7.3.5-1Private call release
Table 10.7.4.1.1-1MCPTT private call call-back request information elements
Table 10.7.4.1.2-1MCPTT private call call-back response information elements
Table 10.7.4.1.3-1MCPTT private call call-back cancel request information elements
Table 10.7.4.1.4-1MCPTT private call call-back cancel response information elements
Figure 10.7.4.2-1MCPTT private call call-back request - MCPTT users in the same MCPTT system
Figure 10.7.4.3-1MCPTT private call call-back cancel request - MCPTT users in the same MCPTT system
Figure 10.7.4.4-1MCPTT private call-back request fulfillment - MCPTT users in the same MCPTT system
Table 10.7.5.1.2-1MCPTT private call forwarding request (MCPTT client to MCPTT server and MCPTT server to MCPTT server) information elements
Table 10.7.5.1.3-1MCPTT private call forwarding response (MCPTT server to MCPTT client) information elements
Table 10.7.5.1.4-1MCPTT private call forwarding request (MCPTT server to MCPTT client) information elements
Table 10.7.5.1.5-1MCPTT private call forwarding response (MCPTT client to MCPTT server and MCPTT server to MCPTT server) information elements
Figure 10.7.5.2.2-1Call forwarding immediate for private calls
Figure 10.7.5.2.3-1MCPTT call forwarding no answer
Figure 10.7.5.2.3a-1MCPTT call forwarding based on manual user input
Figure 10.7.5.2.5-1Simplified private call setup with MCPTT private calls forwarding in manual commencement mode with forwarding target in the partner MCPTT system
Figure 10.7.5.2.6-1Simplified private call setup with MCPTT private calls forwarding in manual commencement mode with forwarding in the partner MCPTT systems
Table 10.7.6.1.1-1MCPTT private call transfer request (MCPTT client to MCPTT server) information elements
Table 10.7.6.1.2-1MCPTT private call transfer request (MCPTT server to MCPTT client and from the MCPTT server to the MCPTT server) information elements
Table 10.7.6.1.3-1MCPTT private call transfer response (MCPTT server to MCPTT client and MCPTT server to MCPTT server) information elements
Table 10.7.6.1.4-1MCPTT private call transfer response (MCPTT client to MCPTT server) information elements
Figure 10.7.6.2.1-1MCPTT private call unannounced transfer
Figure 10.7.6.2.2-1MCPTT private call announced transfer
Figure 10.7.6.2.3-1MCPTT private call announced transfer with target in partner MCPTT system
Figure 10.7.6.2.4-1MCPTT private call announced transfer transferring MCPTT user in partner MCPTT system
Table 10.9.1.2.2-1Floor request
Table 10.9.1.2.3-1Floor granted
Table 10.9.1.2.4-1Floor rejected
Table 10.9.1.2.5-1Floor request cancel
Table 10.9.1.2.6-1Floor request cancel response
Table 10.9.1.2.7-1Floor request cancel notify
Table 10.9.1.2.8-1Floor idle
Table 10.9.1.2.9-1Floor release
Table 10.9.1.2.9a-1Multi-talker floor release
Table 10.9.1.2.10-1Floor taken
Table 10.9.1.2.10a-1Multi-talker floor taken
Table 10.9.1.2.11-1Floor revoked
Table 10.9.1.2.12-1Floor acknowledgement
Table 10.9.1.2.13-1Queue position request
Table 10.9.1.2.14-1Queue position info
Table 10.9.1.2.15-1Unicast media stop request
Table 10.9.1.2.16-1Unicast media resume request
Table 10.9.1.2.17-1Floor revoke request
Figure 10.9.1.3.1-1Floor request, floor granted, floor taken during an MCPTT session
Figure 10.9.1.3.1a-1Floor request, floor granted and multi-talker floor taken during an MCPTT session
Figure 10.9.1.3.2.1-1Floor override using floor revoked (also floor rejected) during an MCPTT session
Figure 10.9.1.3.2.2-1Floor override (overridden continues to transmit) during an MCPTT session
Figure 10.9.1.3.2.3-1Floor override using floor revoked (also floor rejected) during an MCPTT session
Figure 10.9.1.3.2.4-1Floor release during an MCPTT session
Figure 10.9.1.3.3-1Queue status during an MCPTT session
Figure 10.9.1.3.4.1-1Floor request cancellation from queue initiated by MCPTT user
Figure 10.9.1.3.4.2-1Floor request cancellation from queue initiated by floor control server
Figure 10.9.1.3.5-1Floor idle during an MCPTT session
Figure 10.9.1.3.6-1Floor revoke by authorized user
Figure 10.9.1.4.1-1Floor control (partner MCPTT system forwarding) involving groups from multiple MCPTT systems
Figure 10.9.1.4.2-1Floor control (filtering by partner MCPTT system) involving groups from multiple MCPTT systems
Figure 10.9.1.5-1Floor control for audio cut-in enabled group in single MCPTT system
Figure 10.9.1.6-1Unicast media stop request during an MCPTT session
Figure 10.9.1.6-2Unicast media resume request during an MCPTT session
Table 10.9.2.2.2-1Floor granted
Figure 10.9.2.3.1-1Successful floor taken flow (No floor contention)
Figure 10.9.2.4.1-1Simultaneous floor requests
Figure 10.9.2.5-1Floor request during speaking with queue
Figure 10.9.2.6-1Floor request during speaking without queue
Figure 10.9.2.7-1Floor request with override authorization
Figure 10.9.2.8-1Queue status request
Table 10.10.1.1-1MapGroupToBearer
Table 10.10.1.2-1UnmapGroupFromBearer
Table 10.10.1.3-1Application paging
Figure 10.10.4.2.1-1Chat group call connect on MBMS bearer
Figure 10.10.4.2.2-1Chat group call disconnect on MBMS bearer
Figure 10.10.6.1-1MBMS bearer decision flow
Figure 10.10.6.2-1Application paging over an MBMS bearer
Figure 10.12-1Media related signalling communication
Figure 10.12-2Media communication direct
Figure 10.12-3Media communication via primary MCPTT system
Table 10.14.2.1-1Ambient listening call request
Table 10.14.2.2-1Ambient listening call response
Table 10.14.2.3-1Ambient listening call release request
Table 10.14.2.4-1Ambient listening call release response
Table 10.14.2.5-1Ambient listening call release notification
Figure 10.14.3.1-1Remotely initiated ambient listening call
Figure 10.14.3.2-1Locally initiated ambient listening call
Figure 10.14.3.3-1Ambient listening call release - server initiated
Figure 10.14.3.4-1Ambient listening call release - ""listening" user initiated
Figure 10.14.3.5-1Ambient listening call release - "listened to" user initiated
Table 10.15.2.1-1MCPTT first-to-answer call request (MCPTT client to MCPTT server) information elements
Table 10.15.2.2-1MCPTT first-to-answer call request (MCPTT server to MCPTT client) information elements
Table 10.15.2.3-1MCPTT first-to-answer call response (MCPTT client to MCPTT server) information elements
Table 10.15.2.4-1MCPTT first-to-answer call response (MCPTT server to MCPTT client) information elements
Table 10.15.2.5-1MCPTT first-to-answer call cancel request (MCPTT server to MCPTT client) information elements
Table 10.15.2.6-1MCPTT first-to-answer call cancel response (MCPTT client to MCPTT server) information elements
Figure 10.15.3-1MCPTT first-to-answer call - MCPTT users in the same MCPTT system
Table 10.16.2.1-1remotely initiated MCPTT call request information elements
Table 10.16.2.2-1Remotely initiated MCPTT call response information elements
Figure 10.16.3.1-1Remotely initiated MCPTT call request
Table 10.19.2.1-1Ad hoc group call request information elements
Table 10.19.2.2-1Ad hoc group call request return information elements
Table 10.19.2.3-1Ad hoc group call request information elements
Table 10.19.2.4-1Ad hoc group call request information elements
Table 10.19.2.5-1Ad hoc group call response information elements
Table 10.19.2.6-1Ad hoc group call response information elements
Table 10.19.2.7-1Ad hoc group call response information elements
Table 10.19.2.8-1Ad hoc group call release request information elements
Table 10.19.2.8a-1Ad hoc group call release request information elements
Table 10.19.2.9-1Ad hoc group call release response information elements
Table 10.19.2.9a-1Ad hoc group call release response information elements
Table 10.19.2.10-1Ad hoc group call notify
Table 10.19.2.11-1Modify ad hoc group call participants request
Table 10.19.2.12-1Modify Ad hoc group call participants response information elements
Table 10.19.2.13-1Ad hoc group call leave request information elements
Table 10.19.2.13a-1Ad hoc group call leave request information elements
Table 10.19.2.14-1Ad hoc group call leave response information elements
Table 10.19.2.14a-1Ad hoc group call leave response information elements
Table 10.19.2.15-1Ad hoc group call add user notification information elements
Table 10.19.2.16-1Ad hoc group call remove user notification information elements
Table 10.19.17-1Ad hoc group call release notification information elements
Table 10.19.2.18-1Ad hoc group call get userlist
Table 10.19.2.19-1Ad hoc group call get userlist response
Table 10.19.2.20-1Modify ad hoc group call criteria request
Table 10.19.2.20a-1Modify ad hoc group call criteria request
Table 10.19.2.21-1Modify Ad hoc group call criteria response information elements
Table 10.19.2.21a-1Modify Ad hoc group call criteria response information elements
Figure 10.19.3.1.1-1Ad hoc group call setup
Figure 10.19.3.1.2-1Release ad hoc group call by the MCPTT server
Figure 10.19.3.1.2a-1Release ad hoc group call by an authorized user
Figure 10.19.3.1.3-1Ad hoc group call participants determined by MCPTT server
Figure 10.19.3.1.4-1Modification of ad hoc group call participants by an authorized user
Figure 10.19.3.1.5-1Modification of ad hoc group call participants by the MCPTT server
Figure 10.19.3.1.6-1Modification of ad hoc group call criteria by the authorized user
Figure 10.19.3.2.1-1Ad hoc group call setup
Figure 10.19.3.2.2-1Ad hoc group call release
Figure 10.19.3.2.3-1Ad hoc group call setup involving multiple MCPTT systems
Figure 10.19.3.2.4-1Modification of ad hoc group call participants by the MCPTT server
Figure 10.19.3.2.5-1MCPTT server releases an ad hoc group call and stops the determination of ad hoc group call participants involving multiple MCPTT systems
Figure 10.19.3.2.6-1Modification of ad hoc group call participants by an authorized user
Figure 10.19.3.2.7-1Modifying the criteria for determining the participants during an ongoing ad hoc group call between multiple MC systems
Table A.2-1UE configuration data (on and off network)
Table A.2-2UE configuration data (on network)
Table A.3-1MCPTT user profile data (on and off network)
Table A.3-2MCPTT user profile data (on network)
Table A.3-3MCPTT user profile data (off network)
Table A.4-1Group configuration data (on and off network)
Table A.4-2Group configuration data (on-network)
Table A.4-3Group configuration data (off-network)
Table A.5-1MCPTT service configuration data (on and off network)
Table A.5-2MCPTT service configuration data (on-network)
Table A.5-3MCPTT service configuration data (off-network)
Table B.1-1Local UE settings for MCPTT

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