| 摘要 |
<p>A dispatch server (206) is provided in a packet based dispatch radio network to serve as coordinator and arbitrator for dispatch group calls. Participants in a group call transmit internet protocol (IP) voice packets to the server in unicast fashion. The server receives voice packets from multiple sources (210, 216) and implements a prioritization scheme to select one source to pass on to the group via IP multicast. Various prioritization techniques are described.</p> |
