| 摘要 |
In addition to a hang timer (405), a second timer (403) (session timer) is introduced. A base station (101, 102) monitors a dispatch call, and if there exists no activity for a period of time greater than the hang-timer threshold, the base station (101, 102) will drop the over-the-air channels broadcasting the call to the remote units (113-118). All active participants to the call will be maintained until the session timer expires. Once the session timer expires, the talk-group participants will be reset to their original members.
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