Doraemon children's mobile phone manual

How to mute Doraemon's children's mobile phone:

1. Use the parent's main phone number to send a text message to the child's mobile phone number "Ring tone on/Ring tone off" , so that the incoming call tone on the child's mobile phone can be turned on or off;

2. Use the main phone number bound by the parent to send the text message "Ringtone 1*N" to the child's mobile phone number (N is 1-7 ), which can adjust the ringtone volume of the child's mobile phone;

3. Use the parent's primary mobile phone number to send the text message "Ringtone 1*N" (N is 1-7) to the child's mobile phone number. This can adjust the ringtone volume of children's mobile phones