If you have no audio Input or Output this could be cause by the following:-
RDP
If Remote Desktop (RDP) is not configured correctly, it can take control of your audio devices, preventing sound from being sent or received.
To resolve this issue, ensure that the Remote Audio Playback setting is configured to “Play on Remote Computer.”
How to Check if This Is the Cause
On the Edge Server, open the Windows Sound Settings.
Check the list of available audio devices.
If you only see a single device labeled “Remote Audio,” this indicates that RDP has taken over the audio, which is why no sound is being transmitted or received.
To fix this perform the following:-
On the Client (the computer you’re connecting from):
Open Remote Desktop Connection (
mstsc).Click Show Options.
Go to the Local Resources tab.
Under Remote audio, click Settings...
Check this:
Remote audio playback: “Play on remote computer”
Click OK, then connect.
Once this have been done, reopen the Sound devices to see if you can now see all your Audio devices. If so, relaunch the StudioEdge software from the desktop to fix the issue.
Log back into the Edge portal and initiate a call and confirm if you can see the audio bars for both the Return to and from the Guest.
Audio is disabled in the Portal
Make sure that the Embedded or External switches are set correctly for your set up.