VoIP (Voice over IP): technology that allows transmitting voice to networks through IP nets as data packages. In short, VoIP enables you to talk on the phone via Internet.
One of the advantages of this system is services integration and structures unification, but the most important thing is the huge reduction in telephone costs (a tenth part of conventional telephones). The use of Internet to send codified audio in data form makes this possible. Thanks to Gateway servers, you can make the call from a conventional telephone connected to an IP voice line to any telephone on the commuted net in the world. This means that not only can we make calls to another PC or network connected to the Internet, but to any wire or mobile phone in the world.