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Content for  TS 23.281  Word version:  19.1.0

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7.1.2.3.2 Exiting group call due to de-affiliation  7.1.2.3.3 MCVideo user leaving a group call 
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7.1.2.3.2  Exiting group call due to de-affiliation  p. 41
Procedures in Figure 7.1.2.3.2-1 are the signalling control plane procedures for the MCVideo server requesting a newly de-affiliated member to leave an ongoing MCVideo group call.
Pre-conditions:
  1. MCVideo group is previously defined on the group management server with MCVideo users affiliated to that group. All members of the group belong to the same MC system.
  2. MCVideo users on MCVideo client 1 to MCVideo client n are on an ongoing call.
  3. MCVideo client 1 has been de-affiliated from the MCVideo group.
Reproduction of 3GPP TS 23.281, Fig. 7.1.2.3.2-1: Exiting MCVideo group call due to de-affiliation
Figure 7.1.2.3.2-1: Exiting MCVideo group call due to de-affiliation
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Step 1.
MCVideo client 1 which has been de-affiliated is instructed to leave the ongoing group call.
Step 2.
MCVideo server sends a group call leave request to MCVideo client 1.
Step 3.
MCVideo user at MCVideo client 1 is notified about leaving the group call.
Step 4.
MCVideo client 1 sends the group call leave response and leaves the group call.
Step 5.
MCVideo client 1 is now removed from the ongoing group call and MCVideo users at MCVideo client 2 to MCVideo client n may be notified that MCVideo client 1 has left the group call.
7.1.2.3.3  MCVideo user leaving a group call |R16|  p. 41
Procedures in Figure 7.1.2.3.3-1 are the signalling control plane procedures for the MCVideo user leaving an ongoing MCVideo group call.
Pre-conditions:
  1. MCVideo group is previously defined on the group management server with MCVideo users affiliated to that group. All members of the group belong to the same MC system.
  2. MCVideo users on MCVideo client 1 to MCVideo client n are on an ongoing call.
  3. MCVideo user 1 indicates to leave the group call
Reproduction of 3GPP TS 23.281, Fig. 7.1.2.3.3-1: MCVideo user leaving a group call
Figure 7.1.2.3.3-1: MCVideo user leaving a group call
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Step 1.
MCVideo client 1 sends a group call leave request to the MCVideo server.
Step 2.
MCVideo server sends a group call leave response to MCVideo client 1.
Step 3.
Release of transmission control and media plane resources associated with the group call for MCVideo client 1.
Step 4.
MCVideo users at MCVideo client 2 to MCVideo client n may be notified that the MCVideo user of client 1 has left the group call.
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