| 摘要 |
A method to achieve cluster communication service is disclosed, which reduces the number of terminals in a conference context. When a caller initiates cluster call, the method as above includes: establish a caller bearer and the conference bridge context, connect a caller terminal to the conference bridge context using the caller bearer; establish a listener agent terminal in the conference bridge context, then transmit voice for the caller to a listener terminal using the listener agent terminal; establish a listener bearer, then connect the listener terminal to the listener agent terminal of the conference bridge context using the listenerbearer. Furthermore, the invention provides a system to achieve cluster communication service, cluster communication method and cluster communication system. It may reduce the number of terminals in the conference bridge context by using the listener agent in the conference bridge context, thereby, it may reduce the number of conference mixing voice resource used in the cluster service largely.
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