Aug 31, 2017 - 10:58 AM
Typically, echo is caused by someone using their computer mic & speakers and not using a headset, speakerphone or ear buds. As you diagnosed, the computer headset user was introducing the echo and muting them fixed the echo. It is possible that the computer headset user did not have the headset selected as the mic & speakers choices in TurboMeeting's "Setup". There is a very small chance that the computer headset user also dialed in on the phone, in addition to using their computer mic & speakers...but this is much more likely if they are not using a computer headset. Sometimes attendees call in on the phone, but mistakenly have the "Use [Computer] Mic & Speakers" choice selected. In this case, the host can right mouse on the attendee's name and change them "to Use Phone".
It sounds like you probably need more help, so please call us at 408-899-2830 extension 2 so can debug the issue further.