Voice over IP

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Voice over IP

(communications)
(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.
References in periodicals archive ?
Many broadband telephone plans include free calls to Puerto Rico, but not many enable customers to choose a Puerto Rico telephone number so that friends and family members can reach them by dialing a local number from Puerto Rico.
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Broadband telephone company Vonage announced on Thursday (4 August) that it has signed a retail distribution agreement with UK retailer Comet.
NORDIC BUSINESS REPORT-13 April 2004-Tele2 AB launches broadband telephone service in Sweden(C)1994-2004 M2 COMMUNICATIONS LTD http://www.
Youngsters at the Coombe Drive school have been designing posters to encourage residents to sign up for BT's broadband telephone connections.
The software also supports the Ishoni Gateway-on-a-Chip's open-architecture platform, so it allows CPE manufacturers to differentiate their broadband telephone service by developing and porting proprietary applications.
Vonage (NYSE: VG) is a leading provider of broadband telephone services with over 2 million subscriber lines.
is a privately owned, multi-million dollar, debt- free corporation located in upstate New York that provides shared web hosting services to approximately 50,000 top websites and offers broadband telephone service in all 50 states via VoIP partner ViaTalk LLC.
Vonage (NYSE: VG), a provider of broadband telephone services, announced on Monday (22 January) that the company has introduced the new V-Access service.
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