The solution is simple. The government needs to find out what telephone company provides service to this number and make that telephone company cut the service. They also need to put the subscriber on a "No Telephone" list, and cut the service to all other numbers they use.
They call every day and have done so for many weeks. They hang up and don't say anything, whether we pick up the phone or not. It's a nuisance to run to the phone every day for this call.