Patent ID: 6421329
Filing Date: 2002-07-16
Classification: H04L,H04M,H04W

Abstract:
A data network telephony (DNT) system, comprising:a base station connected to a DNT-capable data network and to a plurality of wireless transceivers, each transceiver transmitting to a distinct area, the base station operating the transceivers by a two-way, narrow-band, multiple-channel, real-time duplex radio protocol; and a plurality of portable computer-enhanced communicator units, including microphone and speaker apparatus, each assigned a unique address and adapted to communicate with the base station via the transceivers by the two-way real-time radio protocol and to process DNT calls; wherein the base station maintains a routing table listing addresses of communicators operating in the area of each connected transceiver, and updates the routing table in the base station as operating communicators move from one area to another.