it sounds like a fax machine and when you allow the fax to come through, its from a drug store that says that if you receive the fax in error, you are REQUIRED to send it back to them certified mail... they won't quit calling and refuse to take your number off their list since they think they are dialing the correct and refuse to believe they are wrong in calling a residential number instead of a doctor's office...
 Feb 11th, 2011