I'm having another problem with this boat anchor.

Intermittently, when users dial a phone number with a 1 in it the call will not go through properly. For some reason the system stops sending any 1's to the phone company. Power off/on resolves the issue for a short time (a day, or 5 minutes).

I'm guessing it's a sticky relay, but I don't know where or how to resolve the problem.