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Xiaomi

Xiaomi: Set a Default Calling SIM for a Contact

On a dual-SIM Xiaomi phone, calling a specific person always triggers the SIM prompt, even though you always pick the same card for that number. This happens because the contact has no fixed calling SIM assigned, so MIUI asks every time before dialing out.

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VersionAndroid 11 · MIUI

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Android 11 · MIUI
Set a Default Calling SIM for a Contact – MIUI: step 1 – Tap on Contacts
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Xiaomi

Set a Default Calling SIM for a Contact auf Xiaomi

Dual-SIM Xiaomi phones ask which card to use every time you call a contact, unless that contact has a fixed calling SIM stored in its profile. Without this setting, MIUI treats every outgoing call the same way and shows a manual SIM selection dialog before dialing.

Assigning a calling SIM to a contact removes that extra tap. Calls to that person always go out through the card you choose, for example a business line for work contacts or a cheaper rate plan for international numbers.

To set it, open Tap on ContactsChoose a ContactOpen the MenuTap on Set calling SIMChoose a SIM card (Dual SIM) and tap OK. The choice is saved per contact and applies only to voice calls from that contact entry.

This setting has no effect on messaging apps or mobile data routing, since those follow their own SIM preferences in the system settings. If a SIM slot is removed or disabled, the assigned card resets and MIUI falls back to asking manually again.

Frequently asked questions

No. The Set calling SIM option only controls voice calls. Default SIM for texts is configured separately in the messaging app or in the general SIM settings.