Is the "in and out going volume" feature functional?

[JimDog]

I haven't used it so I can't speak as to whether it is working or not, but I know you need to reboot your adapter for the change to take effect after you change it in vPanel.

[mikeb]

I have used it and it does work. My mom has a loud voice even when the volume on my handset is on the lowest setting. I changed the incoming volume level to "Extremely Low" and now she is not hurting my ear when she speaks. If other callers are too low I can easily bump up the handset volume.