Advanced muting modes (available on Plus and Pro plans) are especially useful for larger conference calls. They allow the conference organiser to specify whether conference Guests are muted when they join, and whether they can unmute themselves or not using the telephone keypad controls. 

On larger calls being able to mute most of the participants can significantly reduce disturbances such as background noise and echoing. When you hold a conference call with lots of participants, sometimes it is difficult to identify the source of any background noise and eliminate it. With muting modes you can make sure that only those who want to/should make contributions to the discussion are able to be heard, creating a much smoother experience overall. 

The organiser can choose any of the below muting modes when editing a conference room.

Conversation mode

All participants can be heard when they join the conference and all participants can mute / unmute their own audio.

If a Moderator has manually muted all Guests, no Guests will be able to unmute themselves.

Listen mode

Only Moderators can be heard when they join. Guests are automatically muted when joining, but they can still unmute themselves.

If a Moderator has manually muted all Guests, no Guest will be able to unmute themselves. Moderators can manually unmute all Guests at any time, but new Guests will always be muted when they first join the conference.

Panel mode

Only Moderators can be heard when they join. Guests are automatically muted when they join and cannot unmute themselves at any point.

Moderators can still manually unmute all Guests, but as in Listen mode, new Guests will always be muted when they first join the conference. If all Guests are manually unmuted by a Moderator, only a Moderator can then mute them.

Muting modes are designed to be used in conjunction with telephone keypad controls.