"It is outside my office, but that would make a boring story for the sign.
I think we should perhaps speculate as to what this sign is really for. A rendevous place for spies or and alien landing place. "just look for the 'phone'," the commander tells the spy/alien. "pick it up and await instructions!"
But perhaps you could have a better story.
The truth is, my office is run but some people who suffer from inflated egos and this is their way of dealing with the fact that there is no reception area and there has to be some way for visitors to get in. When 'those in the know' were told that their should either be just the last four digits of the telephone # or a sign explaining you had to dial 9 first before the 7 numbers, they said there was no room for a sign. A girl I work with suggested if they take down the 'phone' sign they could put the instruction sign there. (if you don' know it's a phone, a sign pointing to it isn't going to help anyway)"