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1 group call
"A call to a call group that rings the group owner and call group simultaneously. When a member of the group answers the call, the other members get a notification with the status of the call." -
2 delayed group call
"A group call that first rings the group owner, and then after a specified number of seconds rings the call group in addition to the group owner."مكالمة مجموعة مُرحلة -
3 team-call group
A group of people who can answer calls on behalf of someone else.