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 ?
Softbank has been studying the feasibility of starting a fiber-optic Internet phone service amid the growing difficulty in winning over fresh subscribers to its ADSL-based Net phone service due to the rapid spread of fiber-optic lines.
It features Wi-Fi internet connection, voice-activated windows, doors and lights, sat-nav, DVD player and net phone.
The provider of free net phone calls (via VoIP - Voice over Internet Protocol) have revealed they are testing an SMS text message service allowing Skype users (Skypers?
Although the notice does not mention Net phone services, industry advocates warned it could lead to new taxes on fast-growing voice-over-Internet Protocol (VoIP) technology, depending on how it's interpreted," observed Declan McCullagh of CNET News.
The integration of CTS's OAISYS Net Phone with SalesLogix provides the ability to dial a contact's phone number from within SalesLogix.
Software makers and telephony supporters feel ACTA's concerns are a little premature, since the current number of Net phone users worldwide is under 30,000.
Toshiba has demonstrated its commitment to quality and excellence in its Net Phone 6.
The entry of NTT-ME into the Net phone business arena is set to fuel competition to entice customers into the respective fold.
22 /PRNewswire/ -- Four11 Corporation and Lucent Technologies (NYSE: LU) today announce that Four11's Net Phone Directory will use Lucent Technologies server software to connect hundreds of thousands of Internet telephone calls every day, bringing the call-completion reliability users expect from their telephones to Internet telephony.
We are proud that Toshiba has been honored with a 2008 IP Contact center Technology Pioneer Award from Customer Interaction Solutions Magazine for our Strata ACD Call Center Suite with Net Phone Presence," said Brian Metherell, vice president and general manager for Toshiba America Information Systems Telecommunication Systems Division.
April 28 /PRNewswire/ -- Four11 Corporation today announced that Microsoft, Netscape, Intel, VocalTec, White Pine, Voxware and VDOnet all have chosen the Four11 Net Phone Directory as the centralized, global directory service for their Internet telephone and video conferencing products.
Priced from $140 for a single user license, Toshiba's new Net Phone 6.