voice over ip

1 definition found

voice over ip - Free On-line Dictionary of Computing (26 May 2007) :

  Voice over IP
  VoIP
  
     <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.
  
     (2003-11-30)