Vonage Companion allows you to make and receive phone calls over your Vonage Pro account on your Mac. When using Vonage Companion, incoming calls can ring both your telephone connected to the Vonage router and your Mac running Vonage Companion. Now you can get unlimited long distance in the USA and cheap long distance around the world using VoIP technology.
What's new in Vonage Companion
Version 1.031 release notes not available at the time of this posting.