Check to make sure you are not on mute. Run a diagnostic on your microphone in Sonim Scout. If you need any further assistance with this question, please contact the

Press volume up. Reconnect headphones and ensure secure connection. If you need any further assistance with this question, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email

Reconnect headphones and ensure a secure connection. If you need any further assistance with this question, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email us at

Press volume up. Reconnect headphones to the device. If neither of these suggestions work, you could also try connecting the headphones to a different device to make sure they are

Press volume up. Check the headset settings in your Bluetooth menu to ensure audio is enabled. Pair your device and headset and try again. If you need any further assistance

Press the volume up button a few times first. Check to make sure you are not in a muted or do not disturb mode. Check the speakers through diagnostics in

Check to make sure the application is up to date in the Play Store and that you have a steady mobile data connection. If you need any further assistance with

Download the ringtone app of your choice from the Play Store and then download the song you’d like to use. Most, if not all, of the ringtone applications will have