[Who can use: All user type]

1. To enable and disable the sound on each of your accessible groups when a message received, toggle the corresponding the notification sound icon to ON  and OFF    for each corresponding group.
   
2. However, if your chat group’s sound notification is set to OFF, you will still be forced to receive a message along with sound notification if the message you received starts with @ and then your group member name (such as @Patrick). [Your name is selected from the list of group members acquired by tapping the  icon]