Qq is forbidden to talk, how to cancel it?

Please refer to the following operation of vivo mobile phone:

1. Mute all staff/cancel: click on group chat-click on the "three" icon in the upper right corner-click on manage group-set mute-turn on/off all staff mute;

2. Prohibit/remove individual members from speaking: click on the group chat-click on the "three" icon in the upper right corner-click on the personal business cards of group members-click on the settings-turn on/off the silence setting, and you can choose the silence time.