To begin a voice call, start in the chat of a friend you would like to call and follow the steps below:
1. Tap the「+」button located at the bottom of the chat window.
2. Tap「Voice Call」> to call your friend.
- Tap Mute to disable your microphone in the call.
- Tap Speaker to enable speaker mode in the call.
- Tap the icon in the top left corner to minimize the call window. Minimizing the call window will continue recording your sound while minimized.