It is a free VoIP mobile dialer application, that lets you make free VoIP calls to any other phone number on your Android device. The only requirement is that your phone number is registered with a VoIP provider.

The app has a simple user interface, so even if you don't know how to make a call, you can easily do it. It is a SIP-based app, which means that it uses a SIP protocol for the call setup and the audio is sent directly to the phone. There is no need to use any other app.

The app is compatible with the latest Android versions. It supports 3G/Edge/Wi-Fi Internet connectivity. It is free to use and there are no in-app purchases. You don't need to sign up for an account or pay any subscription fees.