VoIP Gateways
Voice-over-Internet-Protocol is a packet-based technology for transmitting digitized voice over an Ethernet/IP network. Because many businesses deliver the packetized voice traffic across the Internet to lower the phone bill, VoIP is sometimes called Internet Telephony. VoIP technology, or packet-based voice, underlies such recent developments as unified communication (UC). Related terms include network transformation--referring to carriers that migrate to All-IP network service delivery--as well as real-time communication, since voice transmission is especially sensitive to network issues as delay and jitter (variance in delay).
