Content for TS 24.281 Word version: 18.6.0
10 Private call
10.1 General
10.2 Private call in on-network
10.2.1 General
10.2.2 Private call with transmission control
10.2.3 Private call without transmission control
10.2.4 Ending the private call initiated by MCVideo client
10.2.5 Ending the private call initiated by the MCVideo server
10.3 Off-network private call
10.3.1 General
10.3.2 Basic call control
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10 Private call p. 317
10.1 General p. 317
10.2 Private call in on-network p. 317
10.2.1 General p. 317
10.2.2 Private call with transmission control p. 317
10.2.2.1 General p. 317
10.2.2.2 MCVideo client procedures p. 318
10.2.2.2.1 Client originating procedures p. 318
10.2.2.2.2 Client terminating procedures p. 320
10.2.2.2.3 Client terminating procedures for reception of SIP re-INVITE request p. 322
10.2.2.2.4 MCVideo in-progress emergency cancel p. 323
10.2.2.2.5 Upgrade to MCVideo emergency private call p. 324
10.2.2.3 Participating MCVideo function procedures p. 325
10.2.2.3.1 Originating procedures p. 325
10.2.2.3.1.1 On-demand private call p. 325
10.2.2.3.1.2 Private call initiation using pre-established session p. 329
10.2.2.3.1.3 Receipt of SIP re-INVITE for MCVideo private call from the served user p. 332
10.2.2.3.2 Terminating procedures p. 333
10.2.2.3.3 Receipt of SIP re-INVITE request by terminating participating function p. 335
10.2.2.4 Controlling MCVideo function procedures p. 336
10.2.2.4.1 Originating procedures p. 336
10.2.2.4.2 Terminating procedures p. 337
10.2.2.4.3 Receiving a SIP re-INVITE for upgrade to emergency private call p. 340
10.2.2.4.4 Receiving a SIP re-INVITE for cancellation of emergency private call p. 341
10.2.2.4.5 Sending a SIP re-INVITE for upgrade to emergency private call p. 343
10.2.2.4.6 Sending a SIP re-INVITE for cancellation of emergency private call p. 343
10.2.3 Private call without transmission control p. 344
10.2.3.1 MCVideo client procedures p. 344
10.2.3.2 Participating MCVideo function procedures p. 344
10.2.3.3 Controlling MCVideo function procedures p. 345
10.2.4 Ending the private call initiated by MCVideo client p. 345
10.2.4.1 MCVideo client procedures p. 345
10.2.4.2 Participating MCVideo function procedures p. 345
10.2.4.3 Controlling MCVideo function procedures p. 345
10.2.5 Ending the private call initiated by the MCVideo server p. 346
10.3 Off-network private call p. 346
10.3.1 General p. 346
10.3.1.1 Common procedures p. 346
10.3.2 Basic call control p. 348
10.3.2.1 General p. 348
10.3.2.2 Private call control state machine p. 348
10.3.2.3 Private call control states p. 348
10.3.2.3.1 P0: start-stop p. 348
10.3.2.3.2 P1: ignoring same call id p. 348
10.3.2.3.3 P2: waiting for call response p. 349
10.3.2.3.4 P3: waiting for release response p. 349
10.3.2.3.5 P4: part of ongoing call p. 349
10.3.2.3.6 P5: pending p. 349
10.3.2.4 Procedures p. 349
10.3.2.4.1 General p. 349
10.3.2.4.2 Private call setup p. 349
10.3.2.4.2.1 Initiating a private call p. 349
10.3.2.4.2.2 Private call setup request retransmission p. 350
10.3.2.4.2.3 Ringing notification to the user p. 351
10.3.2.4.2.4 No response to private call setup request with automatic commencement mode p. 351
10.3.2.4.2.5 No response to private call setup request with manual commencement mode p. 351
10.3.2.4.2.6 No response to private call setup request after waiting for user acknowledgement p. 351
10.3.2.4.2.7 Private call setup request rejected p. 351
10.3.2.4.2.8 Private call setup request accepted p. 351
10.3.2.4.2.9 User cancels the private call setup request p. 352
10.3.2.4.3 Private call setup in automatic commencement mode p. 352
10.3.2.4.3.1 Unable to establish media p. 352
10.3.2.4.3.2 Responding to private call setup request when not participating in the ongoing call p. 353
10.3.2.4.3.3 Private call accept retransmission p. 354
10.3.2.4.3.4 Establishing the call p. 355
10.3.2.4.3.5 Call failure p. 355
10.3.2.4.4 Private call setup in manual commencement mode p. 355
10.3.2.4.4.1 Incoming private call p. 355
10.3.2.4.4.2 No response from the user p. 356
10.3.2.4.4.3 User accepts the private call setup request p. 356
10.3.2.4.4.4 Private call accept retransmission p. 357
10.3.2.4.4.5 Establishing the call p. 358
10.3.2.4.4.6 Call failure p. 358
10.3.2.4.4.7 User rejects the private call setup request p. 358
10.3.2.4.4.8 Caller cancels the private call setup request before call establishment p. 358
10.3.2.4.5 Private call release p. 359
10.3.2.4.5.1 Releasing a private call p. 359
10.3.2.4.5.2 Private call release retransmission p. 359
10.3.2.4.5.3 No response to private call release p. 360
10.3.2.4.5.4 Acknowledging private call release after call establishment p. 360
10.3.2.4.5.5 Private call release acknowledged p. 360
10.3.2.4.5.6 Max duration reached p. 360
10.3.2.4.5.7 Stop ignoring same call id p. 360
10.3.2.4.5.8 No response to emergency private call setup request p. 361
10.3.2.4.5.9 No response to emergency private call cancel p. 361
10.3.2.4.6 Error handling p. 361
