internet telephony

1 definition found

internet telephony - Free On-line Dictionary of Computing (26 May 2007) :

  IP Telephony
  Internet Telephony
  IPT
  
     <communications> (IPT, Internet Telephony) Use of IP data
     connections to exchange voice and fax data that have
     traditionally been carried over the public switched telephone network
     .
  
     During the late 1990s, an increasing number of telephone calls
     have been routed over the Internet.  Calls made in this way
     avoid PSTN charges.  Unlike traditional telephony, IP
     telephony is relatively unregulated.
  
     Companies providing these services are known as Internet Telephony Service Providers
      (ITSPs).  They include telephone
     companies, cable TV companies and Internet Service Providers
     (ISPs).
  
     There are still many problems with voice quality, latency,
     compression algorithms, and quality of service.
  
     Voice over IP is an organised effort to standardise IP
     telephony.
  
     See also Computer Telephone Integration.
  
     Internet Telephony Overview (http://fokus.gmd.de/research/cc/glone/projects/ipt/)
     .
  
     (1999-03-17)