Not sure about the physical phone itself, but our company had to shut down our toll-free 1-800 number because of a robo-dialing payphone
You see, the government says you don't need to put any money into a payphone to call 911 or a toll-free number, so the owner of the payphone gets reimbursed for the call. And the owner of the toll-free number pays for each call, part of which goes to the payphone owner for that reimbursement
So, there was a "payphone" in NYC making robocalls to our number 24/7, racking up some serious $. All legit & government sanctioned.
Our phone company doesn't let us block calls from payphones, so instead of finding one that would, we got rid of our 1-800 number