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 ?
will start an Internet telephone service using the fiber-optic line networks of other carriers in August, company officials said Sunday.
A unique incoming SIP number is being offered to customers free of charge by Tpad, an Internet telephone provider.
A Bluetooth Internet telephone which supports all of the main features of global Internet telephony software Skype, has been unveiled in the UK by Elite Devices, a Wi-Fi, Bluetooth and VoIP company.
Callserve has launched a new version of its Internet telephone software, designed specifically for PC users with a broadband Internet connection.
com, a leader in free global Internet telephony services, continues to lead the charge to keep free Internet telephone services out of the hands of regulators and the influence of the legacy telecommunications companies.
The deal will let Franklin sell Internet telephone service internationally.
In addition to Internet access, the NuVisions Wi-Fi network will offer content, such as live television and other video programming, Internet gaming, retail shopping, Internet telephone, and interactive personal services applications in the future.
The Internet telephone features echo and voice delay minimisation, the option of using PC speakers and handset simultaneously, a one-year warranty and a monitor cradle.
Internet telephone company Callserve has announced the immediate availability of a new version of its Internet telephone software.
This collaboration provides the world's most complete integrated Internet telephone solution, giving equipment developers everything they need to quickly and easily build a voice over Internet Protocol (IP) phone.
Franklin is promoting the network as a source of low-cost Internet telephone service to corporations, telephone resellers and consumers.
Other VoIP and ISP providers depend heavily on regular networking or telephone manufacturers, limiting VoIP customers to the "standard fare" of barely working Internet telephone service.
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