MCPTT server provides the location information of MCPTT client 1 to MCPTT client 2. Optionally, the location information may be provided in the floor taken message sent to MCPTT client 2 according to subclause 10.9.1.3.1.
The temporary group call performed by user regroup can be initiated by an authorized user inviting a list of MCPTT users. The group ID for this temporary group may be obtained during call setup, or prior to call setup. The users being invited are implicitly affiliated to this temporary group during call setup, and can be implicitly de-affiliated with the release of the group call. The group call is terminated by either the MCPTT server releasing the call or the authorized user ending the call. The release of the call may be followed by release of the temporary group ID.
The receiving MCPTT clients accept the group call requests and send group call responses to the MCPTT server. This response may contain an acknowledgement. The conditions for sending acknowledgement may be based on configuration.