Use my Bluetooth device

The use of a Bluetooth device is not guaranteed with the Onoff application, but we are working to make it compatible with as many devices as possible.
In the meantime, you can contact our customer service department to ask them to disable VoIP in the application's "Call settings", as this may interfere with the use of a Bluetooth device with the Onoff application.

Please do not hesitate to report the incident to the Customer Care team HERE to help us improve your user experience.