Mitel - Business Communications and Collaboration
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
toolani - Cheap international calls
Phonebooth - Phonebooth is one of the leading voip providers, providing phone systems & phone service for small businesses.
mytello - Cheap international calls via local dial in number at very attractive prices.