How to Enable Call Redirects to Xiaomi: A Complete Guide

Xiaomi’s modern smartphone has long since ceased to be just a communication device, turning into a central communication hub where every missed call can cost an important transaction or personal contact. Which is why the call forwarding function becomes critical for those who often visit meetings, in areas of poor reception or just want to unload the main number by redirecting calls to another operator’s SIM card. Owners of devices with a MIUI shell or a new HyperOS often find that standard setting paths can be hidden or work incorrectly due to the features of the firmware.

In this article, we will take a look at all the ways you can activate call redirects, from standard system settings to hidden engineering codes. You will learn how to set up conditional and unconditional redirects, what to do if the function is not activated, and how to check the current status of services with your carrier without unnecessary costs. Understanding these nuances will allow you to fully control incoming traffic and never stay in touch when you do not need to.

It’s worth noting that the setup procedure may vary slightly depending on the Android version and the specific model of your smartphone, whether it’s a budget Redmi or a flagship Xiaomi. However, the basic principles of network services remain the same for the entire ecosystem, making this instruction universal.

The main types of call forwarding to Android

Before we get to the technical side of the matter, we need to clearly understand what types of call redirects the network offers and how they are implemented in the interface of Xiaomi. There are several key scenarios, each of which solves the user's tasks. Unconditional redirects absolutely all incoming calls to another number immediately, without even giving the phone the opportunity to call. This is ideal if you are going on vacation and want to have a secretary or a trustee take calls.

Unlike unconditional, conditional redirects are only activated when certain events occur. For example, if your phone is off, out of network coverage, or you simply can't answer a call within a certain time (usually 5-10 seconds), the call will be redirected. Separately, it is worth highlighting redirects when you occupy a line, which is useful for business users who do not want to miss important calls while talking to another subscriber.

• 📞 Unconditional – Redirects all calls immediately, ignoring the condition of the phone.
• ⏳ It works if you are already talking to someone else.
• 📶 Inaccessible – activated when the phone is turned off or no network signal.
• ⌛ Unanswered – turns on if you didn’t pick up the phone after a few beeps.

It is important to distinguish between these concepts, because in the menu of a smartphone they are often represented by separate items. The wrong choice of type of redirect can lead to the fact that you will not know about incoming calls at all, or, conversely, the function will not work at the right time. GSM Allows you to combine these settings, creating a flexible scheme for processing incoming traffic.

Setup through the standard phone menu

The easiest and safest way to enable call forwarding to Xiaomi is to use the phonebook's built-in menu. This method doesn't require memorizing complex codes and is available even to inexperienced users. The interface may vary slightly depending on the shell version, but the logic remains the same. To start, open the standard Phone app, which usually has a green or blue phone icon.

You need to go to advanced settings. Most versions of MIUI require you to click on the three dots in the top right corner of the screen or the gear icon to open the settings menu, and you should find Call Settings or Accounts and Imports, although in newer versions it is often placed in a separate sub-menus "Redirect" and the system may search for available services for a while, since this request is sent directly to the operator's server.

In the list you will see the separation of SIM cards, if the device has two SIM-You can select the number you want to set up, and you'll see a list of the four main types of redirects that we talked about earlier. Clicking on any of them will show you the current status (usually “Disconnected” or the number to which the redirect is going) and the ability to enter a new number.

After entering the number, confirm the action. USSD-request to the network, and in a few seconds you will receive a notification of the successful activation of the service. If you want to cancel the setting, the "Disable" button is available in the same menu.

⚠️ Note: When setting up a forwarding to another operator’s number, additional charges may be charged according to your provider’s rates.Clarify the cost of a minute of forwarding with your operator to avoid unpleasant surprises when depositing your account.

Use of the USSD-service-management codes

For those who prefer speed or have encountered problems in the graphical interface, there are special features. USSD-These commands are sent directly to the operator's network and run on any phone, including old Redmi and Poco models. The use of codes is especially important when the smartphone menu is slow or hangs when trying to request service status.

The basic command syntax is the same for all operators and devices. To enable unconditional forwarding, you need to dial a command where you substitute the phone number for the stars. For example, to redirect all calls to +79001234567, the command will look like 21+79001234567#. After dialing the code, you need to press the call button.

*21* Phone Number # - Enable Unconditional Redirection


#21# - Disable Unconditional Redirection




#21# - Check the status of unconditional forwarding




*67* Phone Number # - Enable redirection when classing




*62* Phone number # - turn on when unavailable




*61* Phone number # - turn on if not answered

The codes for conditional forwarding work the same way: 67 activates redirects when the line is busy, 62 if the phone is off, and 61 if you are not responding. Each of these services uses a grille symbol instead of an asterisk at the beginning of the command, for example #67#. The universal command to disable all types of redirects at once is ##002#.

Using codes is instantaneous, but requires careful typing. One error in the number can cause the calls to go wrong or the service to not activate at all. Once you type in the command, a pop-up message from the operator will appear on the screen confirming or describing the error.

Hidden settings and engineering menu Xiaomi

Xiaomi devices have a hidden engineering menu that provides access to deep radio interface settings. Although basic redirect functions are available in the regular menu, sometimes system bugs or firmware features block their operation, in which case you can try resetting network settings or checking the status of services through a hidden interface.

Most Xiaomi smartphones with MediaTek or Qualcomm processors use a special code to enter the engineering menu, but be careful: changing unknown parameters in this menu can lead to unstable communication module operation. To check the status of redirects, the code ##4636##, which opens the test menu, is often used.

In the menu that opens, you should select Phone Information. Scroll down and you can find the call-related sections. Although you rarely directly enter a forwarding number, this menu is useful for diagnostics. For example, you can see if the phone is online and voice calls are active. If errors are displayed, the forwarding will not work.

There is also a specific code for logging into the full MIUI engineering menu: ##6484### (or ##3646633## on some models). This menu uses tabs to navigate. We're interested in the Connectivity or Phone section, where you can reset your radio settings, which sometimes helps to bring back the stuck redirect services.

• 🔧 Code #4636## - Android Test Menu (Universal).
• 📱 Code ##6484## - Engineering menu CIT Xiaomi.
• 📡 Code #3646633## - Alternative login to the engineering menu.
• 🔄 Resetting the radio module – can help if the redirect is not turned on.

⚠️ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose. resetting the antenna calibration or changing the frequency ranges can lead to complete signal loss or unstable Wi-Fi and Bluetooth operation.

💡

The engineering menu is a powerful diagnostic tool, but for a normal redirect setting, it is better to use standard methods or USSD-Codes to avoid system errors.

Table of redirection management codes

For user convenience, we have prepared a summary table of basic commands, which work on most Xiaomi, Redmi and Poco devices, regardless of the Android version. Save this information to quickly manage services without having to search for settings in the menu.

Using these commands allows you to quickly switch between the modes of operation of the phone, for example, before a meeting you can activate a forwarding to a colleague, and after a meeting you can turn it off with one command, which is especially convenient when you don't have time to dig into the settings menu.

Solving activation problems and errors

Despite the simplicity of the procedure, Xiaomi users often encounter errors when enabling redirects, the most common problem is the message “Connection error” or “failed to fulfill the request”, which can be caused by a variety of factors, from temporary network failures to blocking by the operator.

One of the common reasons is the lack of a number determination service or bans on the operator's side. Some tariff plans, especially archival or corporate ones, may have restrictions on the use of forwarding services, and the problem can arise if the main number balance does not have enough funds to pay for the first minute of redirection, if it is charged.

If standard methods don't work, try the following algorithm. First, make sure the phone has data on or at least a stable voice signal. Then try manually writing down the numbers on the menu using a country code format (e.g., country code format, +7 instead of 8. If that doesn't help, take it out. SIM-map, wipe the contacts and paste again, then restart the device.

💡

Try temporarily switching network mode in the settings. Go to Settings → SIM-maps and mobile networks → Preferred network type and select "Only" GSM» or "Only" 3G». Sometimes it helps to break the lock on the side of the cell tower.

In rare cases, the problem lies in the Phone app itself. If you use a third-party call (like from Google or Truecaller), try temporarily switching to the standard MIUI shell. To do this, go to the application settings, find the current call, and select Default Apps → Phone → System Call.

Understanding how redirects work on Xiaomi allows you to manage your communications effectively, whether it’s using a user-friendly graphical interface or fast. USSD-commands, you can always set your phone to work exactly as you want it to. The main thing is to remember the operator's tariffs and carefully check the entered numbers.