I've been using a VoIP phone since Febuary to make international calls. Since I needed international dialing and getting it on my regular phone was just too complicated and expensive, I opted for a VoIP connection. It was important that my calls be clear and have a minimum of time delay, which I have with VoIP.
VoIP is a system of making calls over internet transmission. The system works in three ways: through a VoIP telephone; a regular telephone fitted with a VoIP adapter; and through a computer. I use my regular phone with a VoIP adapter and it works really well, with very little time delay at an economical rate. I think its a really great way to be connected and have a US number for people to dial to rather than a local number.