This technique forwards incoming call to the answering service once you don’t answer your line. You no longer have to worry about using the phone when you are expecting an important call. Call forward no answer sends your incoming call to the answering service once your line is being used.
Dial ★ 9 2 and listen for the special dial tone. Dial the phone number where you want your calls forwarded followed by the # sign. Hang up.
Dial ★ 9 3. Listen for the confirmation tone and hang up.