When you join a Skype for Business (Lync) meeting, you can decide which type of audio to use and, depending on your choice, you’ll have different options and audio controls.
Tip: Check the quality of your audio before a meeting, or when you switch your device. For details, see Set up, test, and troubleshoot Skype for Business (Lync) audio.
If you’re using computer audio (mic and speakers):
Pause on the phone/mic icon, in the meeting window, to access the controls, and then do any of the following:
To help audio quality, click the Mute button if you’re not speaking.
Tip: To quickly mute your audio, just click the Microphone icon.
To put the call on hold, click the Hold Call button.
To change your audio device, click the Devices tab, and pick the device you want.
If you used the Call me feature (Skype for Business (Lync) calls you) or dialed in to the meeting audio with a phone:
Press *1 on your phone key pad to access the meeting help system. You can control your audio with the touch-tone commands, such as mute, unmute, and other commands.