I live in the Bethlehem, PA phone exchange and my ACR when activated or deactivated produces a loud buzz. Also, parties calling my number with a blocked caller id get nothing rater than the message to call back un-blocking their number.
Reported weekly to repair service since 02/22/12. Filed informal complaint with PA PUC.
Verizon has called me back after numerous requests and said they can't fix the problem and it affects everyone in the exchange.
No parts available.