Unknown numbers can be a hassle. Calls from telemarketers and other unknown individuals are bothersome and time-consuming. Stopping unknown numbers is the best solution. There are several ways to stop those numbers from appearing on your phone. Soon, you won't be annoyed by unwanted, unidentified callers.
Call your phone company and inquire about blocking unknown numbers. They may help stop the unknown numbers by intercepting the calls before they reach your phone. Your phone company may recommend other number blocking services that may stop the unknown phone numbers.
Activate Anonymous Call Rejection on your phone by pressing "_77". Anonymous Call Rejection is a phone service that allows you to stop unknown numbers. You can deactivate this service anytime by pressing "_87". When someone calls from an unknown number, they will hear a message saying the called party does not accept unknown or blocked calls.
Use Call Screen by pressing "*60", to stop unknown phone numbers. With call screen you can block any calls you desire. This service allows you to block calls even if you do not know the phone number. Your phone company may charge you a fee for this service.