You say the FCC now allows telemarketers to call cell numbers.
Where did you read that, or did you make it up?
The only way a business can legitimately call a cell number is after the business has written permission from the customer to do so.
Some clown named Chase trying to sell some home security package. The same guy called from 386-518-3270 and 530-615-3283, all within 2 minutes. Whoever is doing this should be publicly flogged.
This number calls my 17 year old, autistic child's phone every single day. He doesn't talk on the phone, only texts, so won't answer but I try to catch it to tell them to stop but they hang up before I can catch it, so today I called it back. There is a recording that tells you to press 1 if you would like to be removed from the preferred marketing list. So I pressed 1. The recording said it would take up to 72 hours for the calls to stop. I guess we will see.
That won't work and will probably end up with you getting more calls. Download a free call blocking app to that phone, and block the calls. Sometimes some cell phones also have the call blocker built in.
FCC now allows telemarketers to call cell numbers. Started this month. So expect a lot of robocalls. Sign up to Do Not Call government list. It won't stop telemarketers but if enough of us complain to FCC it may help. Also, if you have a free Google phone number, it is first screened before sending on to you. If there is no human voice on the other end, think robocalls, your phone doesn't ring and you get an email from Google showing the robo's phone number.