Create a group call by doing the following steps:
1. Log in to WeChat and enter the group chat you'd like to start a group call.
2. Tap the "+" icon on the lower-right corner and tap Group Call.
3. Select the group members you want to call and tap Start on the top-right corner to start the call.
After initiating a call, you can:
1. Tap Open Camera to toggle between a video and voice call and tap the call window to switch between the front and rear camera.
2. Tap Mute to disable your microphone in the call.
3. Tap Speaker to enable speaker mode in the group call.
4. Tap the icon on the left-top corner to minimize the call window. Minimizing the call window will continue recording your sound or video while minimized.
5. Tap the icon "+" in the top-right corner, select the other member(s) you'd like to add in to the call.
Notes:
1. A group call allows up to 9 people in the same session.
2. Only members in a same group chat can be invited to a group call created by members of the group.