Xiaomi
Turn Call Barring On or Off auf Xiaomi
Call barring is a network-level restriction, not a simple mute or block list. It stops entire categories of calls, such as all outgoing calls or all incoming calls while roaming, before they connect at all.
This differs from blocking a single contact. A contact block only silences one number, while call barring can shut down whole classes of calls across your Xiaomi phone. That makes it useful when traveling to avoid roaming charges, or when you need to prevent outgoing calls entirely, for example on a shared or company device.
To reach the setting, follow this path: Tap on Phone ➔ Open the Menu ➔ Tap on Settings ➔ Tap on Calling accounts ➔ Tap on Advanced settings ➔ Tap on Call barring ➔ Choose a SIM card (Dual SIM) ➔ Turn On/Off an Option ➔ Enter the call barring password and tap OK.
On dual SIM devices, each SIM has its own call barring settings, so you need to repeat the steps per card. If you only want to silence one caller rather than a whole category, blocking that contact directly is faster and does not need a password.
Side effect to know: if you forget the call barring password, you cannot toggle the setting until you reset it through your carrier, since the password is tied to the SIM, not the phone.