77146310
Apr 2, 2007
Jan 20, 2009
Computer hardware for interconnecting and distributing voice over Internet protocol (VoIP) telephony service on a local area network, among multiple devices including Ethernet, USB, digital enhanced cordless telecommunications (DECT) and wireless phones, public switched telephone network (PSTN) gateways, analog telephone adapters (ATA), and soft phones; Used in the management and operation of voice over Internet protocol (VoIP) telephony systems, convergence of voice and data information systems, and calling via the Internet
Electrical and Scientific Apparatus