Client wants doorphone to ring differently than the incoming lines. Any ideas?

I was thinking about an auxillary ringer/chime, but that would defeat the original purpose.

Thanks,

D. Ocean
Miami, FLA

You could use a separate phone that does not ring for any lines and have the door call that phone and change the ring type so its different from the other phones. If the customer has and extra phone I used to take it and have it set up to ring when the door box called and then you could have a answer DN for it on all the other sets so it could be answered easily. Other times if there was a courtesy phone we had it ring for the door to provide a different ring.