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 Video Call > Voice Call to call your friend.
(1) Tap Mute to disable your microphone in the call.
(2) Tap Speaker to enable speaker mode in the call.
(3) Tap the icon in the top left corner to minimize the call window. Minimizing the call window will continue recording your sound while minimized.
