METHOD AND SYSTEM FOR SUPPORTING WIRELESS COMMUNICATIONS WITHIN AN INTERNETWORK

摘要

A system and method for supportingcommunications among multiple intercon-nected networks (10, 12, 13, 14) includeassigning multiple dynamic telephonyaddresses to each wireless communicationdevice (34) that registers in more thanone network. The networks assign theaddresses independently of each other.When an incoming call is directed toa particular wireless device via a firstnetwork, if the wireless device is beyondthe transmission range of the first network,a locate-wireless-communication-devicemessage may be single-cast, multicast orbroadcast to remote networks, with instructionsto return dynamic telephony addresses assignedto the device. While the telephony addressesare different in each network, each wirelessdevice is associated with a device identifierthat is universally applied in the internetwork.Upon receiving a telephony address from aremote network, the address is stored in localmemory at the first network, thereby allowingaccess for subsequent incoming calls.