75652408
Mar 2, 1999
computer hardware and software for interfacing communications equipment, namely, telephones, cellular telephones, personal computers, servers, fax modems and public switched telephone networks, comprised of network access controllers, multi-service switches/routers including a switch, router, frame relay assembler/dissembler, protocol converter, dial back-up unit and channel source unit/data source unit; computer hardware and software for generating call detail records and for running voice traffic over various protocols, namely, frame relay, global communication information network protocol, asynchronous transfer mode (ATM) and very small aperture terminal (VSAT); digital signal processors for voice processing, namely, echo cancellation, dynamic buffering and signal quality monitoring capabilities; computer hardware and software for interfacing telephones, cellular telephones, personal computers, servers, fax modems and public switched telephone networks to a global computer network; interactive voice response systems, comprised of network access controllers, multi-service switches/routers including a switch, router, frame relay assembler/dissembler, protocol converter, dial back-up unit and channel source unit/data source unit
Electrical and Scientific Apparatus