Setting Up Per Call
At the dial tone, Press *67, then dial the number you’re calling. When you hang up, the block ends and you must again dial *67 to activate the block on any new call you want blocked.
Setting Up Per Line
In order to cancel the block to show your information on a per-call basis, press *82 and dial the desired number. When you hang up, the block will return for subsequent calls.
Blocking does not prevent transmission of your Caller ID info when calls are made to toll-free numbers (800, 877, 888, etc) or to 911 emergency numbers.