All about VoIP
January 15th, 2008 by France
A VoIP (Voice over IP) used to refer to the actual transmission of voice (rather than the protocol implementing it). It provides commercial realizations of the experimental Network Voice Protocol (1973) invented for the ARPANET providers. VoIP have two types of PSTN-to-VoIP services these are: Direct inward dialing (DID) and access numbers.
Posted in VoIP