Patent ID: 6647020
Filing Date: 2003-11-11
Classification: H04L,H04W

Abstract:
A method comprising the steps of:receiving, by a controller from a communication source, a request for a talkgroup call; upon receipt of the request for the talkgroup call, identifying, by the controller, a payload multicast group address to be used by the communication source for distributing a payload message to a participating device of the talkgroup call; distributing, by the controller to the communication source and the participating device, the payload multicast group address; issuing, from the participating device to a first network device, a command to enable the participating device to receive a payload messages via the payload multicast group address; sending, from the communication source to a second network device, a payload message addressed to the payload multicast group address; and sending, by the second network device, the payload message to the participating device via the payload multicast address.