hi everybody will i have a project and i must know how voip works form a phone to phone , as an example if iam in italy and i want to make an international call to france by what they called international calling card and these cards works by voip.. so what i need is that what is the core process , what's happend behing the stage .. when i use one of these calling cards.. in other words how this thing called voip works from home phone to other home phone located in other country... plz help me ......

best regards

no answer ,,

just use skype it is free computer to computer and dirt cheep to call landlines
www.skype.com

Just don't call the local emergency numbers from a VOIP phone. An recent incident in Canada highlights the mistakes made when you change addresses - it cost a child's life. Emergency calls should always be made from landline phones ( payphones, etc.).