Automatic re-dialing is a useful feature for those who often encounter busy lines or communication breaks. On the Xiaomi Redmi Note 9 (models M2003J15SC, M2003J15SS), this option is implemented in an unobvious way: the manufacturer does not put it in a prominent place on the menu. In this article, we will analyze all the working ways to activate an auto dialer, from hidden MIUI settings to third-party applications with advanced capabilities.
It's important to understand that on the Redmi Note 9 with MIUI 12-14 firmware, the auto dialing algorithm depends on the software version and regional build. For example, in global firmware (MIUI Global), the feature may not be available at all, while in Chinese (MIUI China), it is available by default. We tested all methods on current versions of the system (data as of May 2026) and identified those that are guaranteed to work.
1. Standard Auto dial through MIUI settings
The most reliable way is to use the built-in MIUI tools, but it requires pre-configuration. On the Redmi Note 9, the autorepeat feature is hidden in the Additional Call Settings menu and can be called differently depending on the firmware version.
To find her:
- Open the phone application (pipe icon).
- Click on the three dots in the upper right corner β select Settings.
- Go to the Additional Settings section (or Call Settings in older versions).
- Find the item "Autophone", "Repeat dial" or "Autophone".
- Activate the slider and set the interval between attempts (the options are usually available: 5, 10, 30 seconds).
If you don't have Auto Driver on the menu, your firmware doesn't support system-level functionality, and one of the alternative methods described below will help.
β οΈ Note: On some versions MIUI For the Redmi Note 9, auto dialing only works when mobile internet is active. If you use Wi-Fi calls (VoWiFi), the feature may not work.
2. Auto dialing through USSD codes and engineering menu
For advanced users, there is a way to activate autorepeat via service commands, which works on most versions of MIUI, but requires caution: incorrect code entry can bring down network settings.
Follow the following steps:
- Open the Phone app and go to the Set tab.
- Enter the code: ##4636### This will open the engineering menu.
- Select Phone Information (or Phone Information).
- Scroll down to the Auto dial settings block (may be called Auto Redial).
- Set the Enabled value and save the changes.
If the engineering menu doesnβt open, try the alternative code:
**2767*3855#Warning:
What do I do if the codes don't work?
3. Auto dialing apps from Google Play
If the built-in methods didn't work, the best option is to install a third-party app. We tested 5 popular utilities and selected the two most stable ones for the Redmi Note 9:
- π± AutoRedial is a simple application with a customizable re-typing interval (from 3 to 60 seconds) and supports a blacklist of numbers and a log of attempts.
- π Redial Pro - Extended version with Smart Auto dial (repeats the set only if the line was occupied, and not when resetting).
- π Call Recorder & Auto Redial β a combined solution with recording conversations and auto-replay.
To set up an auto dial through AutoRedial:
- Install the app from Google Play.
- Open it and grant permissions to Calls and Call Log.
- In the main menu, activate the switch "Enable Auto dial".
- Set a re-set interval (recommended 10 seconds for a balance between persistence and battery saving).
- Add numbers to the White List if you want autorepeat to work only for them.
Check reviews (ranked above 4.2)
Make sure the app has been updated in the last 6 months
Read the permission list (no SMS or geolocation access for no reason)
- Check compatibility with Android 10/11 (on the Redmi Note 9 This version is set up)-->
β οΈ Note: Some auto dialing apps (such as Super Auto Redial) contain advertising modules that can drain the battery. Once installed, turn off background activity in battery settings (Settings) β Battery β Optimization).
4. Set up auto dial through Tasker (for advanced)
If you need a flexible trigger solution (e.g. auto-repeat only at specific times or for specific contacts), use Tasker. This automation app allows you to create a rule that will repeat the last set when a communication breaks.
Instructions for setting:
- Install Tasker and AutoInput plugin (required to simulate clicks).
- Create a new task (Tasks β +) and call it, for example, AutoDial.
- Add the Phone action β Call and specify the variable %LAST_CALL (last-number).
- Add Task β Wait and set the delay to 10 seconds.
- Create a condition (Profiles β + β Event β Phone β Call Ended) and tie your task to it.
Important: Tasker requires manual adjustment for each scenario. If you are not familiar with the logic of triggers, use the simpler applications from the previous section.
Frequent problems and their solutions
Even after setting up the auto dialer correctly, we've collected typical errors and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| The auto dialer's not working. | Function disabled by operator | Call the operator and request the activation of the service "Autopovtor" (free of charge from MTS, Beeline, Tele2) |
| All calls are repeated, even successful ones. | Incorrect settings in the application | Enable the option βRepeat only when busyβ (available in Redial Pro) |
| Battery discharges fast | Background activity of the application | Add the application to the optimization exceptions (Settings β Battery β Optimization) |
| Doesn't work for SIM2. | Firmware restriction | Use the AutoRedial application with specific reference to the SIM-map |
If none of these methods helped, check:
- πΆ Communication quality: Auto dial may not work at a weak signal (less than 2 divisions).
- π System updates: by MIUI 14.0.5 and newer autorepeat function is more stable.
- π΅ Do Not Disturb: Turn it off in the sound settings.
π‘
If you need an auto dial for business calls, use Google Voice with Call Screening, which allows you to set up a re-diall through the cloud without loading your smartphone battery.
6. Alternative methods: cloud services and AON
For users who often call busy numbers (for example, support services), cloud services with autodial are suitable. They work over the Internet and are independent of smartphone settings:
- βοΈ Zadarma is a virtual PBX with Cloud AutoDialing function, free for personal use.
- π‘ AON (Always On Number β service from telecom operators (available from MegaFon and Beeline), which automatically calls back if the subscriber is busy.
- π Skype β Call settings can enable Redial if busy (requires a premium account).
The advantage of cloud solutions is that they don't consume the battery of the Redmi Note 9 and work even if the smartphone is turned off.
Comparison of Auto dialing methods for Xiaomi Redmi Note 9
| Method | Difficulty | Reliability | Battery consumption | Internet is required |
|---|---|---|---|---|
| Built-in MIUI function | β | βββ | Low. | No. |
| USSD-code | ββ | ββ | No. | No. |
| Third-party annexes | ββ | ββββ | Medium. | No. |
| Tasker | ββββ | ββββ | High-pitched | No. |
| Cloud services | ββ | βββββ | Low. | Yes. |
π‘
For most Redmi Note 9 users, the best option is a combination of the built-in MIUI function (if available) and the AutoRedial backup auto dial app.