(Code: **332* ) The traveler's compromise. You can call back to your home country (Mom, the bank), but you cannot call a random number in Thailand.
(Code: **331* ) The roaming protection. You are on vacation. You have had three glasses of wine. You do not need to call a London hotel from Paris. This prevents expensive international dialing while still allowing local calls. what is a call barring
(Code: **35* ) The witness protection mode. Nobody can reach you. Not spam, not your boss, not your ex. This is more aggressive than Airplane Mode because the network knows you are unreachable (callers get a fast busy signal). (Code: **332* ) The traveler's compromise
It is the back door of your phone's security. And now, you know the code. You are on vacation
But in a world where spam calls are becoming AI-generated and roaming charges are making a comeback, is the only true guarantee. A blocked caller can leave a voicemail. A barred caller cannot.
Apple and Android hide these settings deep inside Settings > Phone > Call Barring . You usually need your carrier's PIN (often "0000" or "1234") to access them. Manufacturers want you to use their sleek block lists, not carrier-level codes.
