Patent ID: 6233234
Filing Date: 2001-05-15
Classification: H04L,H04M,H04Q

Abstract:
A method of telephony communication via a public packet switched data network from a first terminal to a second terminal connected to a local area network comprising the steps of:a) initiating from said first terminal a first address signal;b) translating said first address signal to a second address signal to effect a link to a first interface to said public data switched network;c) establishing a virtual link through said public data switched network to a second interface to said public data switched network;d) establishing a packet data link from said second interface to said public data switched network to an access gateway to said local area network;e) transmitting from said second interface to said public packet switched data network to said access gateway a designation including information initiated by said first terminal, which information includes identification of said second terminal;f) comparing the information provided by said first terminal with a storage of information maintained by said access gateway which includes information relating to said second terminal;g) upon establishing a match between at least certain of said information provided by said first terminal and information stored in said storage relating to said second terminal, linking said first terminal to said second terminal through said public packet switched data network and said access gateway and said local area network for interactive voice telephony communication between said first and second stations.