Set up call forwarding on Xiaomi Redmi 9: a complete guide with error solutions

Call forwarding to Xiaomi Redmi 9 is a useful feature that allows you to redirect incoming calls to another number depending on the conditions set. For example, you can set up automatic redirects to your work phone when your smartphone is off or out of network coverage. Despite its apparent simplicity, many users face difficulties: the function may not work due to operator settings, firmware errors. MIUI or conflict with applications to block spam.

In this article, we will discuss all ways to configure redirection (conditional, unconditional, when busy or unavailable), explain how to check the active rules through the use of the Internet. USSD-We'll give you some codes, and we'll provide solutions to the problems. MIUI 12-14, where the menu interface may be different. If you've tried to set up a redirect before, but the calls haven't been redirected anyway, here's the answers.

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1. Redirect types to Xiaomi Redmi 9: which one to choose?

Redmi 9 has 4 main types of redirects, each of which works in a specific setting, and it is important to understand the difference between them so as not to create conflicting rules (for example, to activate unconditional and conditional redirects at the same time).

🔹 Unconditional (always) - redirects all incoming calls to a specified number, regardless of the condition of your phone, useful if you are temporarily using another device but want to receive calls to the main number. On Xiaomi Redmi 9, this option may conflict with the Do Not Disturb feature – check to disable it before setting up.

🔹 If the number is busy, it works when you're on the phone, for example, if you get a call during an important conversation, the caller will be redirected to a spare number.

🔹 If there is no response, it activates if you do not pick up the phone within a given time (usually 15-30 seconds). USSD-codes (more on this below).

🔹 If you're not available, it works when you're off, out of network coverage, or in flight mode, and it's the most reliable option for a backup number.

• ✅ For business users: the combination of "when busy" + If no response is provided, it will provide minimal call loss.
• ⚠️ For personal use: unconditional forwarding may result in additional costs if the operator's tariff is paid.
• 📱 Feature MIUI: On some Redmi 9 firmware, the “if not available” option may not work due to a network status bug.

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2. Step-by-step settings through the phone menu

The easiest way to activate a redirect is through a standard menu. MIUI. The interface may vary slightly depending on the firmware version (MIUI 12/13/14), But the general logic holds.

📌 **Instructions:

1. Open the phone application (pipe icon).
2. Click on the three dots in the upper right corner → select Settings.
3. Go to the Calls section. → Call forwarding (or additionally) → Redirection to MIUI 14).
4. Select the type of redirect (for example, if there is no response).
5. Enter the number for redirection in format +79XXXXXXXX or 89XXXXXXXX (gapless).
6. Click Enable and confirm the action.

⚠️ Note: If the Call forwarding option is not on the menu, this may mean:

• 🔄 Your operator is blocking the function (for example, Tele2 or Iota require a paid option to be connected).
• 📵 SIM-card does not support the service (check in the operator's personal account).
• 🐞 Firmware bug (update) MIUI last-minute).

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3. Setup through USSD-codes: alternative method

If you're on the menu MIUI does not allow you to configure redirects (or you prefer manual control), you can use USSD-It's universal, and it works even on custom firmware, and the key is to know the syntax of the commands for your operator.

📋 **Mainstream USSD-forwarding:

🔢 **Examples of use on Redmi 9:

• 📞 To enable forwarding when unavailable to the number +79123456789, enter: 62+79123456789# Then press the call button.
• ⏱️ To set a timeout when there is no response (for example, 20 seconds): 61+79123456789**20#
• 🔍 To check the active rules: *#002# (will show all current redirect settings).

⚠️ Note: some operators (e.g. MegaFon) may use alternative codes, check them in the helpline or on the official website.

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Make sure that SIM-map supports forwarding|Check the balance (some operators charge for activation)|Write down the current settings via *#002#|Use the international room format (+7 or 8)

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4. Problem Solving: Why is redirection not working?

If you set up a redirect, but the calls are not redirected, the problem may be one of 5 key factors, and let's look at each and how to fix it.

🛠️ 1. Conflict with the annexes

Spam blocking apps (such as Truecaller or GetContact) can intercept incoming calls before the redirect works.

• 📵 Temporarily disable spam blockers in settings.
• 🔄 Reboot your phone after disconnecting.
• 🛡️ Add the number to the forwarding to the whitelist of the blocker.

📡 2.Problems with the operator's network

The operator can block the redirect by default.2 requires the connection of the service "Redirection" through USSD *111*777# Or your personal account:

• 💳 Account balance (the service may be paid).
• 📄 Status of the service in the personal account of the operator.
• 📞 Call support and check if the function is activated for your SIM-map.

🤖 3.Firmware bugs MIUI

Redmi 9 with firmware MIUI 12.5-13.0 encountered a bug where redirects were reset after rebooting:

• 🔄 Update the firmware to the latest version (Settings) → The phone. → Updating the system).
• 📲 Reset network settings: Settings → SIM-maps and mobile networks → Resetting network settings.
• 🛠️ Use it. USSD-codes instead of phone menus (they work at the level) SIM-map).

🔋 Energy saving regime

In ultra-economy or activated Flight Mode, the redirect may not work.

• ⚡ Turn off the energy saving mode in Settings → Battery.
• 📶 Make sure the mobile network is on (the antenna icon in the status bar).

📱 5. Double. SIM-map

On the Redmi 9 with two SIM-The redirection cards are set up separately for each. SIM For calls, make sure the rule applies to the correct card:

• 🔄 Go to Settings. → SIM-maps and mobile networks.
• 📇 Choose. SIM-map for which you are configuring the redirection.
• 🔗 Repeat the settings through the Calls menu → Redirection.

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5.How to disable redirects to Xiaomi Redmi 9?

If you no longer need to forward calls, it is important to disable all active rules correctly, otherwise calls may go to the old number and you will not know about it.

🔕 **Methods of shutdown:

1. Through the phone menu: Open the phone → Settings → Calls. → Redirect. Select the active rule and press Disable.
2. Through USSD-To cancel all rules at once: ##002# For cancellation of a specific type (for example, "if busy"): #67#

Through the operator's personal account

• Go to the website or application of your operator (for example, My MTS or MegaFon-Personal Account).
• Find the "Services" section → Redirect and deactivate it.

⚠️ Note: after disabling redirection through USSD-You will receive the code ##002# SMS-Notification from the operator. If it doesn't come, the function is still active!

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💡

Save it. USSD-*#002# to contacts called "Redirect Check" will allow you to quickly check the active rules at any time.

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6. Alternative methods: applications and cloud services

If standard methods are not suitable (for example, the operator blocks redirects), third-party solutions can be used, and they are suitable for advanced users who are willing to sacrifice privacy for flexibility.

📱 1. Redirection applications

There are applications that emulate redirection over cloud servers. Examples:

• 🌐 Google Voice (requires a US number, but allows you to redirect calls to any phone).
• 📞 Call Forwarding (Android app with support for conditional rules).
• 🔄 Disa (allows you to create complex redirect scenarios).

⚠️ Cons: Internet dependence, possible delays, risk of data leakage.

☁️ **Cloud PBX

Services like Zadarma or Mango Office offer virtual numbers with flexible forwarding settings.

• 📊 Schedule setting (redirect calls only during business hours).
• 🔢 Voice menu (IVR) before forwarding.
• 📈 Call statistics.

💰 Cost: From 300 ₽/Mes (depending on the tariff).

🔧 3 Automation through Tasker

The Tasker app allows you to create automatic forwarding rules based on the following conditions:

• 🕒 Time (for example, redirect calls to the working number from 9:00 to 18:00).
• 📍 By location (enable forwarding when you are in the office).
• 🔋 Battery level (if the charge is below 10%, redirect calls).

🛠️ Adjustment will require rights ADB root.

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💡

Standard forwarding via menu or USSD-codes are the most reliable way, because they work at the operator level. Third-party applications are convenient, but they can fail at a critical moment (for example, when there is no Internet connection).

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7. Frequent mistakes and how to avoid them

When setting up a redirect to Xiaomi Redmi 9, users often make common mistakes that lead to broken rules or additional costs.

🚫 Error 1: Incorrect number format

If you specify a forwarding number in 9123456789 (without a country code), the rule will not work.

• 📞 +79123456789 (international format).
• 📱 89123456789 (Russian format).

🚫 Mistake 2: Rule conflict

If unconditional and conditional forwarding are activated simultaneously, the priority will be unconditional.

• ✅ Right, only if you're busy" +"if there is no answer".
• ❌ Wrong: "always" +"If not, the second rule will never work).

🚫 **Mistake 3: Forgot about time-out

When you set up a redirect, if there is no response, you set the default timeout for 20-30 seconds. If you need a faster redirect, change it through USSD:

61+79123456789**10#

(where 10 is time in seconds).

🚫 Error 4: Support by the operator is not verified

Not all tariffs support forwarding, for example, Yota can block it by default.

• 📄 Tariff conditions in the personal account.
• 💬 Write to the support chat: "Does my tariff support conditional call forwarding?".

🚫 **Mistake 5: Cost not included

Some operators charge for forwarding (for example, MegaFon - 1.5). ₽/Specify the tariffing:

• 💰 USSD-Code for checking the balance: *100# (MTS), *105# (Beeline).
• 📊 See the section "Payment services" in the personal account.

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FAQ: Answers to Frequent Questions