hi, this mentions glass mount. Does it have a battery option or do you still require to run wires across your glass doors or walls?
we have several a20/ctp18 combos so assume this will work?
Yes, the RoomPanel can be mounted on glass, for more info on how-to follow this link: Yealink Support
You still need to connect the RoomPanel to your network so it can work so you will still need to wire the unit, you can either cut the glass or you can do it without it, the link with the how-to shows all your options.