Content for TR 24.837 Word version: 10.0.0
4.6 Media flows transfer p. 120
4.6.1 General p. 121
4.6.2 Procedures p. 121
4.6.2.1 Media flows transfer initiated by the target UE p. 121
4.6.2.1.1 Media flows transfer initiated by a UE not participating in the ongoing collaborative session p. 121
4.6.2.1.1.1 Alternative 1 (REFER with media feature tag) p. 121
4.6.2.1.1.2 Alternative 2 (SIP REFER with method= REFER) p. 122
4.6.2.1.1.3 Alternative 3 (Based on SIP INVITE request) p. 123
4.6.2.1.1a Media flow transfer initiated by a UE not participating in the ongoing collaborative session - media on controllee UE p. 124
4.6.2.1.1a.1 Alternative 1 (SIP REFER with media feature tag) p. 124
4.6.2.1.1a.2 Alternative 2 (SIP REFER with method= REFER) p. 124
4.6.2.1.1a.3 Alternative 3 (Based on SIP INVITE request) p. 124
4.6.2.1.2 Media flows transfer initiated when no collaborative session has been established p. 125
4.6.2.1.2.1 Alternative 1 (REFER with media feature tag) p. 125
4.6.2.1.2.2 Alternative 2 (SIP REFER with method= REFER) p. 126
4.6.2.1.2.3 Alternative 3 (Based on SIP INVITE request) p. 127
4.6.2.1.3 Media flows transfer initiated by a controllee UE of an ongoing collaborative session p. 128
4.6.2.1.3.1 Alternative 1 (REFER with media feature tag) p. 128
4.6.2.1.3.2 Alternative 2 (SIP REFER with method= REFER) p. 129
4.6.2.1.3.3 Alternative 3 (Based on SIP re-INVITE request) p. 130
4.6.2.1.4 Inter-UE transfer solicited by a target UE without prior information about the existing session p. 131
4.6.2.2 Media flows transfer initiated by a UE other than the target UE p. 131
4.6.2.2.1 Void
4.6.2.2.2 Controllee UE initiated addition of media to another controllee UE p. 131
4.6.2.2.2.1 Alternative 1 (SIP REFER with media feature tag) p. 131
4.6.2.2.2.2 Alternative 2(SIP REFER with method= REFER) p. 132
4.6.3 Identified issues p. 134
4.6.4 Call flows p. 135
4.6.4.1 Media flows transfer initiated by the target UE p. 135
4.6.4.1.1 Media flows transfer initiated by a UE not participating in the ongoing collaborative session p. 135
4.6.4.1.1.1 Alternative 1 (REFER with media feature tag) p. 135
4.6.4.1.1.2 Alternative 2 (SIP REFER with method= REFER) p. 142
4.6.4.1.1.3 Alternative 3 (Based on SIP INVITE request) p. 158
4.6.4.1.2 Media flows transfer initiated when no collaborative session has been established p. 163
4.6.4.1.2.1 Alternative 1 (REFER with media feature tag) p. 163
4.6.4.1.2.2 Alternative 2 (SIP REFER with method= REFER) p. 178
4.6.4.1.2.3 Alternative 3 (Based on SIP re-INVITE request) p. 196
4.6.4.1.3 Media flows transfer initiated by a controllee UE of an ongoing collaborative session p. 196
4.6.4.1.3.1 Alternative 1 (REFER with media feature tag) p. 196
4.6.4.1.3.2 Alternative 2 (SIP REFER with method= REFER) p. 204
4.6.4.1.3.3 Alternative 3 (Based on SIP re-INVITE request) p. 222
4.6.4.1.4 Inter-UE transfer solicited by a target UE without prior information about the existing session p. 227
4.6.4.2.2 Controllee UE initiated addition of media to another controllee UE p. 230
