If, like most of us, you allow our telephone number to be presented to the people we call; however, every now and then you may want to block your CID on either a "per call" or "per contact" basis. Here's the simple how to.
For these examples, the full, 10-digit number to be called is "416-555-1234".
CASE 1. For a per call, one shot from the dial pad, prefix the 10 digit telephone as follows:
CASE 2. For a per stored contact, go to (navigate to) the specific contact in your contacts app. In edit mode, in their telephone number field, prefix their stored telephone number as follows.
Save per your contact app procedure/sequence.
Now when you dial this specific person/contact, the #31# will block your CID to the prefixed number. If you have multiple number for this person/contact, then EACH number must be prefixed and saved with the prefix in place.
CASE 3. For numbers needing "1" prefix.
should also work.
CASE 4. For numbers needing "+".
Results may vary. It depends on your dialer app.