Hi and thanks for the quick reply. Not exactly sure how to determine which version it is. There is little documentation. It has a 9110-203-217 integrated processor control. There is a plate with the serial number but it's fairly unreadable.
No to the call going through. I tried that a few times. As mentioned about one time in twenty times I could get a dial tone after hitting the '9 button' which is puzzling. I do get a dial tone when I pick up the phone and can call other rooms or the front desk just not after the '9'.
Thanks