Patent ID: 7813334
Filing Date: 2010-10-12
Classification: H04L,H04M

Abstract:
1. A communication system, comprising: network access equipment that includes a first type of wireless air interface which supports circuit-switched communications with at least some of a plurality of wireless handheld devices, and a second type of wireless air interface that supports packet-switched communications with the at least some of the wireless handheld devices, wherein the at least some of the wireless handheld devices each include a first wireless air interface to support wireless circuit-switched communications and a second wireless air interface to support wireless packet-switched communications; a database server coupled at least partially via an internet protocol (IP) packet-switched network to the network access equipment and that provides dynamic information indicative of IP addresses available for use in communicating with respective ones of the wireless handheld devices; and a call setup protocol operative to set up a call from a particular wireless handheld device of the at least some of the wireless handheld devices to a telephony device associated with a callee, wherein: wherein the particular wireless handheld device is configured to wirelessly support both circuit-switched telephone calls and packet-switched VoIP telephony calls using one or more wireless connections.