If you use Vonage adapter and service outside of U.S.A, change your 911 dialing status to “Out Of Country”. This will save unwanted headache when you dial 911 while you use Vonage overseas.
Vonage Mobile app is designed to allows users to place low-cost international calls over Wi-Fi and cellular voice networks. Vonage Mobile for iPhone app will automatically route your international calls through Vonage network to save money. Currently Vonage Mobile app is available for iPhone and BlackBerry Smartphones.
How to use it.