When using the "GPS & Talk Plan", you can freely choose the incoming ringtone of the BoT Talk device according to your child's surroundings and the importance of the talk.
While your child is at school, please select "OFF (default setting)" to prevent the ringtone from sounding, and then send the talk.
If you are using the GPS plan, pressing the button on the BoT device will produce a beep sound, but the ringtone will not sound.