What Is *77 Used For? How to Activate Anonymous Call Rejection on Landlines
Learn how dialing *77 activates Anonymous Call Rejection on landlines to block hidden caller IDs and avoid unwanted calls.
How to Activate *77 on Your Landline for Anonymous Call Rejection
Learn how to enable Anonymous Call Rejection by dialing *77 on your landline. Block unwanted anonymous calls easily and deactivate with *87.