During a conference, the presentation source audio is still sent to remote participants after I mute the VPM220 or VPM220W. What can I do?
On the TE series endpoint, Switch controls is set to MIC array only.
On the endpoint web interface, choose System Settings > Input/Output > Audio and set Switch controls to All audio inputs.
On the endpoint remote controlled UI, choose Advanced > Settings > Audio > Audio Input and set Switch controls to All audio inputs.