75835402
Nov 17, 1999
Computer telephony software, computer systems, telephone systems, computers, telephones, computer networks, networking devices, Internet software and services, voice over Packet Switched systems, voice mail systems
Electrical and Scientific ApparatusComputer telephony software, computer systems, telephone systems, computers, telephones, computer networks, networking devices, Internet software and services, voice over Packet Switched systems, voice mail systems
Telecommunications