(Note: "PIN" in the examples above refers to your Call Barring password, not your SIM unlock PIN. If you have never set a barring password, try the defaults mentioned earlier.)
Here is everything you need to know about call barring codes, how to use them, and why they matter. call barring code
Call barring works on the network level (via your SIM card and mobile carrier), not just on the phone’s software. This makes it more secure than airplane mode or do-not-disturb, because even if someone swaps your SIM into another phone, the restrictions remain. (Note: "PIN" in the examples above refers to
| Function | Activate | Deactivate | Check Status | |----------|----------|------------|---------------| | Bar all outgoing calls | **21*PIN# | ##21# | *#21# | | Bar outgoing international calls | **331*PIN# | ##331# | *#331# | | Bar outgoing international calls except to home country | **332*PIN# | ##332# | *#332# | | Bar all incoming calls | **35*PIN# | ##35# | *#35# | | Bar incoming calls when roaming (outside home network) | **351*PIN# | ##351# | *#351# | | Cancel all active call barrings | ##002# | (no PIN needed) | – | This makes it more secure than airplane mode