If you are having Sound issues during a SightCall Session, here are a few things to check for:
1. Check your input and output devices:
To do so, click in the top right corner on the Settings cogwheel icon to see the list of devices detected. You'll want to ensure the corred device is selected:
2. Check that the Microphone is activated on both ends:
If the icon has a white background, then the feature is active, so here both microphones (Local and Remote) are activated:
3. Check your system volume
It can be quite common to have the system volume on mute, so check your Sound Preferences on your computer to ensure that's not the case.
If all else fails, there could be an issue with the audio drivers, check that the sound works fine using other applications, and if it still does, please provide us with a coredump.