There are several ways to block unwanted phone calls to a landline phone. Calling features can also be used to block incoming calls. If the problem is with telemarketing calls, a phone number can be added to the National Do-Not-Call Registry.
- Use anonymous call rejection
Use anonymous call rejection to stop calls from anonymous and private numbers. This will not prevent calls from numbers that display "out of area" or "unavailable."
- Block specific phone numbers
Use call rejection to block specific phone numbers. This service is ordered through the provider and can block up to 10 numbers once active.
- Remove the phone listing from directories
Contact the service provider to remove the phone number from directory assistance and/or the published phone book.