Dialer for Xiaomi, Redmi and POCO Phones on HyperOS and MIUI

Dialer for Xiaomi business calling

The Auto Dialer gives Xiaomi, Redmi and POCO owners a phone app that knows who each caller is in sales terms: it takes the default calling role, works through a lead list from the handset's own SIM, and saves the outcome of every call to that lead. Xiaomi's own FAQ for the REDMI 17, read on 4 October 2026, lists it as shipping with HyperOS 3 on Android 16 and puts default apps behind a three-dot menu under Apps, a step many people miss. Older handsets run MIUI, where menus differ again. The second half of setup is Xiaomi's background control. Without autostart permission, a closed app may not be allowed to wake itself, and a callback alarm set for tomorrow morning can fail silently. Depending on the model and the region it was sold in, the built-in dialer is either Google's Phone app or Xiaomi's own; the steps below work for both.

Dialer for Xiaomi default phone app setting

1. Open Settings and tap Apps.
2. Tap the three-dot icon in the corner, then Other settings.
3. Tap Default apps, then the phone or calling entry.
4. Select The Auto Dialer and confirm.

That is the HyperOS route Xiaomi publishes; on MIUI the default apps entry may sit elsewhere under Apps, and the exact wording varies by version. The app also asks for the role on its own when first opened. For the general Android picture, including how to undo it, read changing the default dialer on Android.

Dialer for Xiaomi autostart and battery saver

Xiaomi treats background activity as a permission, so a dialer needs it granted explicitly. Three settings cover it:

• Background autostart. Settings › Apps › The Auto Dialer › App permissions on MIUI 14 and HyperOS; the Security app's Auto-start list on earlier MIUI. Best for: letting reminders fire after a restart or a long idle spell.
• Battery saver: No restrictions. On the app's battery saver page, move it from the default to No restrictions. Best for: phones that sit in a pocket for hours between calls.
• Lock in recents. In the recent apps screen, drag the app card down until a lock appears. Best for: older MIUI phones that clear memory aggressively.

vivo uses a similar permission model with different names; a team mixing brands can compare with vivo and iQOO background power settings. Samsung and OPPO have their own versions, covered in the guides to a dialer for Samsung and a dialer for OPPO. If a list still stops halfway, the general checks in fixing an auto dialer that stops apply to every Android brand.

Dialer for Xiaomi, Redmi and POCO setup

Redmi and POCO handsets run the same Xiaomi software family, so the menus above apply to them. The table puts the whole job in order.

Dialer for Xiaomi on a property agent's phone

Round-number illustration; no customer data behind it.

A property agent in Jakarta works from a Redmi Note and gets around 50 portal enquiries a week. She imports them into The Auto Dialer, dials the new ones each morning, and promises callbacks for the evening. For the first few days the 7 pm reminders arrive only when she unlocks the phone, because Background autostart was off. After turning it on and setting No restrictions, the evening alarms ring on a locked screen, each with the buyer's last remark attached. Agents in the same position can read more in the dialer guide for real estate agents.

Dialer for Xiaomi limits

A Redmi or POCO phone places one SIM call at a time, and nothing in the software multiplies that. Teams expecting dozens of simultaneous calls need a cloud platform instead. A major HyperOS update can move or rename these menus, so open the autostart page again after one and confirm the switch is still on. Owners of other brands will find their own settings through the Android dialer guide by brand, and the list-dialing session itself is described on the auto dialer app page. Google's own phones are covered under dialer for Pixel.