Making Phone Calls to friends, family or lovers overseas is now dirt cheap or even you can make free phone calls. This cheap overseas Phone calls gateways guide includes free phone calls via the web as wells as the lists the cheapest number to call any country from a normal phone. 

One technical feature that is driving VoIP phone service is use of the session initiation protocol, or SIP. SIP comes from the world of instant messaging, where it is used to connect your teenage daughter to all of her online friends when she is supposed to be doing homework. What SIP does for VoIP is create peer-to-peer telephone connections anywhere in the world. In other words, the phones talk to each other without the need for any kind of phone switch in the middle
Many Voip providers will try and flog you PC-to-phone calls, where you call someone's normal phone via your computer, though a few small providers like Voip Cheap and Voip Stunt do provide free calls to some countries PC-to-phone, provided you top up your account.

The speed and reliability of Voip Vonage, NetCentrex, Skype & Sonus are few of the leading providers of commercial business VoIP and residential VoIP telephony. We're hearing a lot about Voice Over Internet Protocol (VoIP) these days.