Vonage Extension App is handy to people who use Vonage to make international call from their Windows Phone.
Three easy ways to make call
* Search Contacts and dial
* From recent/favorite
* Dialer - to call any number not in your contacts list
+ Easy search of contacts and tap to dial
+ All phone numbers of the same contact will be listed
+ Unlimited recent/favorite contacts
+ Individual recent/favorite contact management
+ Tap to dial from recent/favorite list
+ Dialer. Dial any number not in your contacts
+ Simple settings .Set it and forget it.
+ Help page with easy instructions
+ Email Support