It's a great application for those of you who want to change the sound of your phone calls. It allows you to do that by downloading it to your Android device. This application will allow you to change the ringtone, as well as the sound and the frequency of the ringtone.

To install the app, you need to have Android 4.0 or above, and you need to have the Tele2 «Whistle» service.

Installation and usage

Download the app to your Android device.

It is necessary to specify the location where the ringtone is to be played.

After installation, the Tele2 service must be turned on in the phone settings.