Vonage Extensions is an Android app designed to bring your Vonage phone service to your mobile device. It allows you to make and receive calls on up to two phones over Wi-Fi or 3G/4G. With Vonage Extensions, you can enjoy the convenience of using your Vonage number on-the-go, making it perfect for business and home phone service or calling while traveling.

One of the most significant advantages of Vonage Extensions is that it lets you save with your Vonage internet calling plan wherever you are. You can enjoy unlimited international calling to over 60 countries with some plans, and use WiFi calling to make online phone calls and avoid roaming charges when abroad. The app also uses your contacts to tell you who is calling, and you can choose which number to display as your Caller ID.

Overall, Vonage Extensions is a reliable and convenient way to take your Vonage phone service with you wherever you go. The app is easy to download and set up, and it offers a range of features that make it a great choice for anyone who wants to stay connected while on the move.