What is VoIP?
Voice over Internet Protocol (VoIP) is a protocol optimized for the transmission of voice through the Internet or other packet switched networks. "VoIP" is pronounced voyp. See WikiPedia
Generally it can be understood as talking on a phone that's connected to a VoIP provider rather than a telephony provider.
Our VoIP History
We first signed up with a VSP at the end of 2005.
More to come...
PennyTel are my main VSP at them moment, they've been quite reliable and have lots of great features like free SMS, per second charging, etc. If you use the following link you'll get 25 free calls as a bonus!