We intend to install plenty such phones in a production area, but as anyone passing by can just simply press "SignOut" and therefore leave the phone "useless" on the wall, it's hindering us from deployment. Any idea if and when that feature could possibly be available?
Can you login to the Web UI for the device and see if you can customize the same. That is something I can think off. This would require discussion with the OEM for the modification in the Key Controls.