Do a search on call blocking devices and phones.If its a cell phone, there are free call blocking apps out there including trac & straight talk.
http://800notes.com/forum/ta-5d4e343675a5629/call-blocking-devices
They Have called every day 3 to 4 times a day. I'm getting tired of this Bull [***]. You call the number back an it rings an goes to a busy signal ..It's not like I'm trying to sleep. If I didn't have kids I turn the phone off. But I still have to be reached if one of them need something.
Was calling me non-stop. Finally picked up the phone. It's a recording that prompts its response based on your answers. It's about a diabetes monitor. When I tried calling back the number, it rang once and then hung up on me. I've blocked it now as AIN'T NOBODY GOT TIME FOR DAT!