Internet telephony (IPT) implies telephone calls over the Internet without traditional telephony devices, multimedia PCs or dedicated. Call can be partially or completely transmitted over internet.

With this technology there can be significant reduction in cost and its implementation is also easy.

In the future, Internet Telephony Service Providers (ITSP) may use a single infrastructure for providing both, Internet access and Internet telephony. The IPT users may also profit of its software-oriented nature: software solutions may be easily extended and integrated with other services and applications, e.g. whiteboarding, electronic calendar, or WWW.