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voice over IP

   Also found in: Wikipedia, Hutchinson 0.03 sec.

See VoIP, IP telephony and IP on Everything.

(communications)Voice over IP - (VoIP) Any technology providing voice telephony services over IP, including CODECs, streaming protocols and session control. The major advantage of VoIP is lower cost, by avoiding dedicated voice circuits.

Currently VoIP is being deployed on internal corporate networks, and, via the Internet, for low cost (and low quality) international calls. It is also used for telephony applications such as voice and fax mail.

The ITU standard is H.323, which is a whole suite of protocols, while the IETF has developed the much simpler SIP to solve the session control problem and MGCP/Megaco to solve the gateway problem.
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Dacom Corporation, a leading Korean provider of telephony, Internet and data communications services, has selected Nortel Networks (NYSE:NT)(TSX:NT) to provide a next generation network (NGN) voice over IP (Internet Protocol) and multimedia solution.
Dacom Corporation selects Nortel Networks voice over IP, multimedia ... by EDP Weekly's IT Monitor
The major advantage of Voice over IP is that it avoids the huge tolls charged by ordinary telephone service.
ALONG Mobile Technologies Inc. to Provide Voice over IP Service to ... by Business Wire
Multi-Million Dollar IP Broadband and Voice over IP Deployment Follows Formalized Distribution Agreement Between Verso and ViaSat
Verso and ViaSat, Inc. Announce New Marketing and Development ... by Business Wire
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