Patent ID: 7508777
Filing Date: 2009-03-24
Classification: H04L,H04M

Abstract:
1. A communication system, comprising: a plurality of wireless handsets each including a user interface which enables a respective user to specify a set of dialing digits corresponding to a telephone number of a particular callee where the particular callee can be reached via telephone calls originated from a public switched telephone network (PSTN); a plurality of network access devices that are each coupled to an Internet Protocol (IP) packet-switched network, wherein each of the network access devices provides a respective wireless local area network air interface for communicating with a particular wireless handset of the plurality of wireless handsets; a database server that is coupled at least partially via the IP packet-switched network to at least two of the plurality of network access devices, and that provides dynamic information indicative of IP addresses available for use in communicating with respective ones of the plurality of wireless handsets; a call setup protocol operative to set up a call from the particular wireless handset to a particular telephony device associated with the particular callee, wherein: wherein, in support of the communication connection that carries voice data using the packetized IP telephony protocol, the particular wireless handset wirelessly transmits and receives packetized IP telephony protocol packets to and from the particular network access device using the wireless local area network air interface.