How to connect auto dialer on the phone Xiaomi Redmi Note 9: 5 working methods

The AutoDial feature on the Xiaomi Redmi Note 9 allows you to automatically re-attempt the connection if the subscriber is busy or not responding, which is especially useful for business calls, important conversations or when you need to urgently call your relatives. However, standard MIUI settings do not always offer this option out of the box – it needs to be activated through hidden menus or third-party applications.

In this article, we’ll look at all the ways you can set up an auto dial on the Redmi Note 9 (including the Note 9 Pro and Note 9S) with MIUI 12/13/14 firmware in mind. You’ll learn how to enable the feature through the engineering menu, which apps are reliable, and how to avoid common bugs that may cause the auto dial to fail. We’ve tested all methods on current versions of Android (10–13) and prepared a compatibility table.

1 What is an Auto dialer and why is it needed on Xiaomi

Auto dial (or auto call replay) is a function that automatically calls back to a subscriber if:

• 📞 Line occupied (signal occupied")
• 🔕 The customer has dropped a challenge or has not responded
• 📵 No network (temporarily unavailable)

The Redmi Note 9 doesn’t have this feature as obvious as Samsung or iPhone phones. Xiaomi’s standard phone app doesn’t have a separate auto dial switch, but it needs to be activated via an engineering menu or install additional programs, and it’s important to understand that the auto dialer only works for outgoing calls and doesn’t affect incoming calls.

Main use cases:

• 💼 Business etiquette: Call the customer again in 30 to 60 seconds if they don’t respond.
• 🚨 Emergency situations: call to taxi service, ambulance or relatives.
• 📡 Poor network coverage: Automatic retry if communication is interrupted.

Method 1: Enabling Auto dial through the engineering menu (without root)

The most reliable method is to activate hidden settings via the Engineering Mode, which works on all versions of the Redmi Note 9 regardless of the firmware, but requires caution: improper changes can disrupt the communication module.

Instructions:

1. Open the Phone app and type the combination: ##4636## Some firmware may require a call keyboard input (not in the dial bar!).
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to the Set Auto Redial (or Auto dial).
4. Set Enabled and set the parameters: 🔄 Redial Count – number of attempts (recommended 3-5). ⏱️ Redial Interval – the interval between attempts (optimally 10–30 seconds).

Save the settings and restart the phone.

Check the battery power (minimum 30%)

Record the current network settings (APN, network mode)

Do not interrupt the setup process

Reboot your phone after the changes-->

If there is no Auto Redial item in the engineering menu, then your firmware does not support it. In this case, try the methods 3 or 4 from this article.

⚠️ Note: Do not change other options in the engineering menu, especially in Band Selection or Network Type sections!

Method 2: Use of the AutoCall (without root) application

If the engineering menu didn't work, install a third-party app. We tested 5 popular programs and selected the two most stable ones for the Redmi Note 9:

Instructions for setting up Auto Redial:

1. Install the app from Google Play.
2. Open it and grant permissions to Calls and Call Log.
3. In the main menu, activate the Enable Auto Redial switch.
4. Set up the parameters: 🔢 Number of retries – number of attempts (maximum 10). ⏲️ Delay between retries – interval (recommended 15-45 seconds). 📵 Stop on answer – stop on response.

load-up

Settings → Applications → Autoboot

Auto Redial

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If the auto dial doesn’t work, check if the battery optimization is blocking it. Go to Settings → Battery → Battery Optimization, find the app and select Unlimited.

Method 3: Auto dial through settings SIM-Cards (for some operators)

Some mobile operators (such as MTS or Beeline) offer their own auto dialing services, which are network-level, so they are independent of the phone model, but there are limitations to this method:

• ✅ No need to install applications.
• ❌ Paid (usually 1-3) ₽ call).
• ❌ It only works for subscribers of the same operator.

How to connect:

1. Send. USSD-team: 📶 MTS: *111*777# 📶 Beeline: *110*789# 📶 MegaFon: *105*700# 📶 Television2: *155*1*1*1#

Follow the instructions in the SMS from the operator.

• MTS: *111*777*0#
• Beeline: *110*789*0#
• Add the task (+ → Telephony → Repeat the last call).
• Set the delay before repeating (e.g. 20 seconds) and the maximum number of attempts.
• Save the profile and activate it.

Tasker allows you to customize auto dialing to time of day, day of week, or even location (e.g., repeating calls only when you’re at work), but it will require you to understand the logic of the application or use ready-made templates from the community.

6 Why Auto dialing may not work: 7 frequent errors

If you have set up an auto dialer but it doesn’t work, check these points:

If none of the methods worked, check:

• 🔋 Battery charge: at a level below 15% MIUI Can block background processes.
• 📶 Communication quality: in areas of weak signal, the auto dial may not work.
• 🔄 Version MIUI: on old firmware (below) MIUI 12.5) Some functions may not work.

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If the auto dialer doesn't work through the engineering menu, but it works through the app, the problem is in the firmware. Update MIUI to the latest version or use third-party solutions.

FAQ: Frequent questions about auto dialing on Redmi Note 9