Patent ID: 6697349
Filing Date: 2004-02-24
Classification: H04L,H04W

Abstract:
In a location area including a plurality of sites linked together by a packet network, a method comprising:determining a location area multicast group address associated with the location area; issuing commands to the packet network requesting reconfiguration of the packet network to enable the sites of the location area to receive at least control messages via the location area multicast group address; determining a payload multicast group address for a cellular call; issuing commands to the packet network requesting reconfiguration of the packet network to enable a first site to receive outbound traffic for the call via the payload multicast group address; receiving, by the first site, an outbound message for the call via the payload multicast group address; determining one or more participating devices for the call; and sending at least a portion of the outbound message to the participating devices.