Internet phone calls
With the voice data packets are IP headers with destination addresses and can send them through different routes even if the same fate, only to be rebuilt to achieve the original voice message with any order of arrival. In fact, in the case of a call that was made by the circuit public switched telephone network maintains a link uninterrupted throughout the duration of the call.VoIP makes calls to a compression of 8:1 scale so you can make more calls and packet transmissions by the same circuit, which comprises the central core of the Internet calls.
Users have benefited from low cost up to 95% lower than they were earlier international calls and routine either from the PC to a phone, PC to PC, fax, e-mail, with e of voice, voice chat, simply by downloading a free software Thanks to new IP technologies and functions.
Prominent among them are PC2Phone, ie that are PC to Phone with full-duplex calls that are made in real time around the world and with very low prices. PC2Fax, in this case the PC to a fax, which is done by sending faxes to any fax machine that is around the world, even at very low prices.
PC2PC, in this case from PC to PC, through which it is possible to conduct voice conversations but also in real time at no cost, which means free. ICQ Voice Chat, is providing the opportunity for discussions on ICQ, also in real time and for free.
Finally Messaging is the one who listens, records and delivers messages from voice mail for free. Internet calls definitely have been a great find engineers for the benefit of all users around the world. So i think you got enough information to make Internet phone calls.