Content for TS 24.281 Word version: 18.1.0
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. 289
10.1 General p. 289
10.2 Private call in on-network p. 289
10.2.1 General p. 289
10.2.2 Private call with transmission control p. 289
10.2.2.1 General p. 289
10.2.2.2 MCVideo client procedures p. 290
10.2.2.2.1 Client originating procedures p. 290
10.2.2.2.2 Client terminating procedures p. 292
10.2.2.2.3 Client terminating procedures for reception of SIP re-INVITE request p. 294
10.2.2.2.4 MCVideo in-progress emergency cancel p. 295
10.2.2.2.5 Upgrade to MCVideo emergency private call p. 296
10.2.2.3 Participating MCVideo function procedures p. 297
10.2.2.3.1 Originating procedures p. 297
10.2.2.3.1.1 On-demand private call p. 297
10.2.2.3.1.2 Private call initiation using pre-established session p. 301
10.2.2.3.1.3 Receipt of SIP re-INVITE for MCVideo private call from the served user p. 304
10.2.2.3.2 Terminating procedures p. 305
10.2.2.3.3 Receipt of SIP re-INVITE request by terminating participating function p. 307
10.2.2.4 Controlling MCVideo function procedures p. 308
10.2.2.4.1 Originating procedures p. 308
10.2.2.4.2 Terminating procedures p. 309
10.2.2.4.3 Receiving a SIP re-INVITE for upgrade to emergency private call p. 312
10.2.2.4.4 Receiving a SIP re-INVITE for cancellation of emergency private call p. 313
10.2.2.4.5 Sending a SIP re-INVITE for upgrade to emergency private call p. 315
10.2.2.4.6 Sending a SIP re-INVITE for cancellation of emergency private call p. 315
10.2.3 Private call without transmission control p. 316
10.2.3.1 MCVideo client procedures p. 316
10.2.3.2 Participating MCVideo function procedures p. 316
10.2.3.3 Controlling MCVideo function procedures p. 317
10.2.4 Ending the private call initiated by MCVideo client p. 317
10.2.4.1 MCVideo client procedures p. 317
10.2.4.2 Participating MCVideo function procedures p. 317
10.2.4.3 Controlling MCVideo function procedures p. 317
10.2.5 Ending the private call initiated by the MCVideo server p. 318
10.3 Off-network private call p. 318
10.3.1 General p. 318
10.3.1.1 Common procedures p. 318
10.3.2 Basic call control p. 320
10.3.2.1 General p. 320
10.3.2.2 Private call control state machine p. 320
10.3.2.3 Private call control states p. 320
10.3.2.3.1 P0: start-stop p. 320
10.3.2.3.2 P1: ignoring same call id p. 320
10.3.2.3.3 P2: waiting for call response p. 321
10.3.2.3.4 P3: waiting for release response p. 321
10.3.2.3.5 P4: part of ongoing call p. 321
10.3.2.3.6 P5: pending p. 321
10.3.2.4 Procedures p. 321
10.3.2.4.1 General p. 321
10.3.2.4.2 Private call setup p. 321
10.3.2.4.2.1 Initiating a private call p. 321
10.3.2.4.2.2 Private call setup request retransmission p. 322
10.3.2.4.2.3 Ringing notification to the user p. 323
10.3.2.4.2.4 No response to private call setup request with automatic commencement mode p. 323
10.3.2.4.2.5 No response to private call setup request with manual commencement mode p. 323
10.3.2.4.2.6 No response to private call setup request after waiting for user acknowledgement p. 323
10.3.2.4.2.7 Private call setup request rejected p. 323
10.3.2.4.2.8 Private call setup request accepted p. 323
10.3.2.4.2.9 User cancels the private call setup request p. 324
10.3.2.4.3 Private call setup in automatic commencement mode p. 324
10.3.2.4.3.1 Unable to establish media p. 324
10.3.2.4.3.2 Responding to private call setup request when not participating in the ongoing call p. 325
10.3.2.4.3.3 Private call accept retransmission p. 326
10.3.2.4.3.4 Establishing the call p. 327
10.3.2.4.3.5 Call failure p. 327
10.3.2.4.4 Private call setup in manual commencement mode p. 327
10.3.2.4.4.1 Incoming private call p. 327
10.3.2.4.4.2 No response from the user p. 328
10.3.2.4.4.3 User accepts the private call setup request p. 328
10.3.2.4.4.4 Private call accept retransmission p. 329
10.3.2.4.4.5 Establishing the call p. 330
10.3.2.4.4.6 Call failure p. 330
10.3.2.4.4.7 User rejects the private call setup request p. 330
10.3.2.4.4.8 Caller cancels the private call setup request before call establishment p. 330
10.3.2.4.5 Private call release p. 331
10.3.2.4.5.1 Releasing a private call p. 331
10.3.2.4.5.2 Private call release retransmission p. 331
10.3.2.4.5.3 No response to private call release p. 332
10.3.2.4.5.4 Acknowledging private call release after call establishment p. 332
10.3.2.4.5.5 Private call release acknowledged p. 332
10.3.2.4.5.6 Max duration reached p. 332
10.3.2.4.5.7 Stop ignoring same call id p. 332
10.3.2.4.5.8 No response to emergency private call setup request p. 333
10.3.2.4.5.9 No response to emergency private call cancel p. 333
10.3.2.4.6 Error handling p. 333
