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Vonage Extensions® FAQs

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Get started now and turn your mobile into your trusted business or home phone line in four easy stages


Q. How can I get the Vonage Extensions App?

A. The app is available from the Apple iTunes app store or Google Play store. The app requires either iOS 4.3 and above, or Android™ 2.2 or above and you must have a UK mobile number.

Q. Can I use the Extensions App on more than one smartphone?

A. You can use Extensions on up to two smartphones for each Vonage line.

Q. How do I make a call with the app?

A. Simply launch the app on your device and dial either using the dialler in the app or from your existing address book.

Q. How do I receive a call with the app?

A. All incoming calls will ring a phone connected to your Vonage box (when connected) and the Extensions app, so you can take the call wherever you are.

Q. Which phone number will be presented when I make a call from the app?

A. Calls made from the app will display your Vonage Telephone number. There is an option within the app to display your mobile number if preferred.

Q. Is there an extra charge for using Vonage Extensions?

A. There may be data charges from your mobile operator for using 3G/4G.

Q. Do I have to input my address book into the app?

A. No, the Vonage Extensions app automatically uses your existing address book on your smartphone.

Q. Can I use Vonage Extensions when I am out of the UK?

A. Yes you can. If you are connected to Wi-Fi, simply open the app and dial the number. If you are abroad and use Extensions over 3G/4G or GSM mobile networks, roaming charges may apply, please check with your mobile operator.

Q. Can I use Vonage Extensions on any other smartphone or landline?

A. You can make outbound calls using a UK number and unique access code which is available from your online account.

Q. What is the Vonage Mobile app?

A. The Vonage Mobile app allows you make app-to-app calls, texts and video calls free to anyone who had the app. You can also make free calls to Vonage users, and enjoy Vonage's great rates for calls to standard landline and mobile numbers.

How Vonage Works

Use your broadband connection to make clear and reliable calls from mobile, tablet, laptop, desktop, office or home phone.

How Vonage Works
How Vonage Works Small
Easy Setup

Getting started is easy

After activating your Vonage account, you will need to setup your Vonage Box.

To get started making calls, you need to connect your new Vonage Box to your broadband and your home phone to the Vonage Box. That's it, you're now ready to start making calls.

  • Easy to set up, no engineer visits or installation costs
  • Keep your existing phone number
  • FREE Smartphone App, use your plan on up to 2 mobiles