About this app

★★★★★ Best free phone call app with cheap rates!

Callbacker is a free mobile application, which will help you make cheap phone calls around the world.

Simply register an account, make a deposit and you're ready to make cheap phone calls. It's very convenient because you don't have to check your mobile account balance all the time. Either on a business trip or vacation, you can use the Callbacker service any time and, if needed, deposit your account instantly.

Making phone callback calls in Callbacker is very easy:

1. Dial the number of your contact in Callbacker or select him/her from your Address book (phone number should be in the international format).

2. Callbacker instantly dials your phone number and you receive an incoming call. Answer it.

3. After the connection has been established, Callbacker dials the number you intended to call.

4. That's it, you're connected now. You can start saving on mobile phone calls and enjoy the crystal clear voice quality.

Also you can do the internet SIP calls.

Callbacker doesn't require Internet connection or a steady link with a 3G or Wi-Fi network. All your calls are made via the network of your mobile service provider. You will be able to make your good quality phone calls without Internet or using very poor Internet connection.

Main advantages of the application:

✓ SIP internet calls.

✓ Phone calls without Internet (SMS callback).

✓ You will enjoy every day with the simple and friendly interface of Callbacker.

✓ You can view your phone calls history.

✓ Your Address book is available in Callbacker.

✓ You can make phone calls between any two phone numbers, even if one of them is not your mobile number. E.g., you can call your friend's mobile number using your home landline number.

✓ Our rates are lower than those of your mobile service provider.

Save on the mobile phone calls with Callbacker like never before! Don't limit your communication anymore!

New features

Bug fixes.

App Permissions

Allows applications to open network sockets.
Allows applications to access information about Wi-Fi networks.
Allows applications to access information about networks.
Allows an application to read the user's contacts data.
Allows an application to use SIP service.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to record audio.
Allows access to the vibrator.
Allows an application to modify global audio settings.