13.20.3 Disconnect
23.2053GPPBearer-independent circuit-switched core networkRelease 17Stage 2TS
A dispatcher can leave or reenter the call at any time without any influence of the ongoing call. Only the dispatcher is disconnected as described in the clause for call clearing (see 3GPP TS 43.068 [39], 3GPP TS 43.069 [40]).
The Voice group call can only be released by an authorised subscriber (see 3GPP TS 43.068 [39], 3GPP TS 43.069 [40]). If an authorised subscriber triggers the release of the group call all other parties are disconnected as described in the clause for call clearing.