When you make a call, there will be a microphone icon in the call menu. Tap the microphone icon to mute or unmute yourself.      When you are MUTED, the microphone icon will glow like this:     When you are UNMUTED, the microphone icon will be grey like this:   Tip: If the other party can’t hear you, check your microphone permissions to ensure Olelo is allowed to use your microphone.