I have a situation where I would like to install a phone that has no ability for anyone to dial a number other than one specific number. I have found wall phones that come without a dial or dial pad so my plan was to use one of those. I would like the user to be able to lift the receiver and that would trigger the dialing sequence to only one specific number. I was thinking of using an OBi 100 but I don't know if I can program it to react to the phone being off hook and then only dialing one specific number. I would also like to program the OBi so that it could not dial any other number, in the event someone figured out how to hack the wall phone.
Can I do what I want using the OBi 100 and can anyone tell me how?
Thanks in advance to any and all who can help.