: Dialing *87 can clear certain caller ID privacy filters on some lines.
: If you blocked your own number from appearing on others' caller ID, dial *82 before the phone number to temporarily unblock it for that call. how to unblock phone number on landline
If you previously dialed *77 to block private/unknown callers, you need to turn that feature off. : Dialing *87 can clear certain caller ID
Once you unblock the number, have the person call you back immediately to test it. You should hear a normal ring. "Panasonic KX-TGE unblock").
Pro Tip: If you can’t find the menu, search Google for your phone’s brand and the word "manual" (e.g., "Panasonic KX-TGE unblock").