To prevent unauthorized users from changing these settings (e.g., a child turning off the restrictions), Call Barring is governed by a .
Allows international calls only to your home country while you are traveling abroad. Call Barring vs. Call Blocking call barring meaning
| Scenario | Barring Type | Benefit | | :--- | :--- | :--- | | | Outgoing International | Prevents children from accidentally dialing expensive international numbers. | | Corporate Devices | Premium Rate / Adult Numbers | Ensures company phones are not used for unauthorized entertainment services. | | Vacation / Roaming | Incoming while Roaming | Avoids exorbitant "roaming charges" for receiving calls while abroad. | | Theft Prevention | All Outgoing Calls | If a phone is stolen, the thief cannot use the device to make expensive calls (requires activation via password). | | Do Not Disturb | All Incoming Calls | Total disconnection for focus or rest, sending callers directly to voicemail. | To prevent unauthorized users from changing these settings
Most smartphones support this through their "Supplementary Services" or "Call Settings" menus. Activating or deactivating the service usually requires a provided by your carrier; common default codes include 0000 or 1234 . Call Blocking | Scenario | Barring Type |