L.V.
We have a thing with our house phone where it will not let private calls come in, you can try doing that but there isnt a way to trace a call, we've had prank calls before and contacted the phone company to give us the numbers to the pranksters but they said they couldnt trace it or something. But u can ask ur phone company about blocking private calls, and it will probably still let ur husbands company come in it might not be a blocked number just a different area code or something cuz my sisters number shows up private on our caller id but it still shows the number.