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Start by muting all participants in the deposition room individually by selecting the 3 dots “Options' on the attendee's video screen. This opens a drop-down menu; select “Mute Attendee” as shown below:
Once all of the attendees have been muted, call out each name of the participants one at a time and ask them to unmute when they hear their name
Once the user with feedback issues unmutes themselves, you will be able to easily identify who is causing the issue
Be sure that the “Connect to Conference” button (for Dial-in Participants) is disconnected in order to determine that the feedback issue is not caused by the telephonic users
When the audio of the attendee causing the feedback is muted, the problem should stop
Once you have identified the participant experiencing the feedback issue, please see the following link to further resolve the issue: Feedback from the Microphone