If you are being harassed, contact your phone provider immediately. They can often trace the call or put a "trap" on the line for law enforcement, which is more effective than simple blocking.
We often assume call blocking is only for smartphones. But if you’re still getting unwanted robocalls, telemarketers, or harassing calls on your home landline, you’re not powerless. While landlines don’t have a “swipe and block” button, there are several effective methods to permanently silence specific numbers. Here’s everything you need to know.
Most traditional and VoIP landline providers support standard vertical service codes to manage unwanted callers directly from your handset: How To Block Unwanted Calls | Consumer Advice