Modern Xiaomi and Redmi smartphones are complex communication devices, but even experienced users sometimes have unusual requests that go beyond the usual scenario of communication. One of these tasks is to make a call to your own number, which may be necessary to check the quality of communication, test the headset or activate voice mail. Unlike landlines, where the phone is simply placed next to you, mobile devices by default block outgoing calls to your own number to avoid endless connection cycles.
However, there are several technical solutions that can circumvent this limitation or simulate such a call. MIUI Advanced call management features have been implemented, which allow you to redirect calls or use additional SIM cards. GSM-network and internal phone settings will help you easily implement your plans without installing third-party software.
In this article, we will take a look at all the available methods, from using operator codes to configuring redirects. We will look not only at software aspects, but also at physical ways of checking, which often prove to be more effective. It is important to understand that each method has its own characteristics depending on the model of your device and the tariff plan used.
Use of call forwarding
The most reliable way to get your phone to call itself is to set up an unconditional redirection, which is that you redirect all incoming calls to your own number, and when someone (or you from another device) tries to call you, the network automatically redirects the call back to your phone, creating a self-call effect.
To activate this function, you don't have to dig into the depth of the settings menu. You can use special ones. USSD-Enter ##002# to reset all redirects if they were previously enabled, and then use the *21* number your phone# code to activate. Please note that instead of "your phone number", you need to substitute your number in an international format.
If you prefer a GUI, go to the Phone app and click three dots in the corner of the screen. From the menu, select Settings, then look for Accounts and Sync or Redirects, and you can select the redirect type: Always, When Busy, or When Not Responding.
- π Unconditional forwarding redirects all calls immediately.
- β³ Employment redirects will work if youβre talking to someone else.
- π Timeout allows the phone to buzz for a certain time before redirection.
- π« Disconnection is done by code ##002# or through the settings menu.
β οΈ Note: When using a forwarding to your number, you may be charged double rates for outgoing and incoming calls, unless your tariff provides unlimited minutes.
Once set up, try calling your number from another phone. Your Xiaomi should take the call even if the call button behaves as standard. Remember to turn off the forwarding after the tests are complete so you don't miss important calls from other people.
The two-way method SIM-map
Xiaomi smartphone owners often use two numbers at once, which opens up a unique opportunity for self-testing. If you have two SIM cards installed on your device, you can call one to the other, which is a completely legal and regular way that does not require complex network settings or risky manipulation.
To implement this method, open the standard Phone application. In the dialing interface, make sure that the SIM card selection function is activated. Dial the number of your second SIM card. Before pressing the call button, the system will prompt you to choose which SIM card to make a call from - select the one that is not the receiving one.
This approach is ideal for real-time microphone and speaker quality testing, so you can talk into the microphone and hear yourself through the speaker, evaluating echoes, extraneous noises or distortions, and it's also convenient to check the noise reduction function that is used in modern Redmi Note and Mi models.
If you only have one SIM card, but you have a second phone, you can use it as a remote control, just dial your number from another device, and this will allow you to check the vibration, the volume of the call, and the operation of the notification light indication, if it is provided by the design of the case.
- π± Two-sim mode allows you to call inside one device.
- π Audio check is possible in hands-free mode.
- πΆ Network test shows signal strength of both SIM cards at the same time.
- π° Savings β calls within the network are often free or charged preferentially.
There will be no incoming calls at this point, which can be critical if you are waiting for an important call.
Setting up voicemail and auto secretary
Another interesting way to call yourself is to activate the voicemail or autosecretary services provided by the carrier, so when you call your number and the line is busy or you don't pick up, the call can be redirected to the operator's server, and in some configurations, you can configure the system to receive calls and play greetings.
To configure this functionality, consult your carrier's codes. For example, voicemail often uses *110*21# (code may vary depending on region and operator) After activation, you can call your number and if the line is busy, you will hear a greeting.
Some advanced users use third-party autosecretary apps that are installed on a smartphone. Programs like Google Phone with call screening or specialized services can automatically receive calls and record messages, which creates the effect that you "accepted" the call yourself, even though the program actually did.
| Operator. | Service | Activation code. | Cost |
|---|---|---|---|
| MTS | Voice mail. | *111*151# | Paid. |
| MegaFon | Voicemail | *110*21# | Paid. |
| Beeline | Voicemail | *110*46# | Paid. |
| Tele2 | Virtual Secretary | *155*611# | Paid. |
Why isn't voicemail working?
Using an auto secretary is especially useful for checking how your number is determined by other subscribers. Upon calling yourself, you will hear what name or name of the organization is displayed and pronounced, if the operator has such a feature.
Checking through the Engineering Menu
For tech-savvy users who want to do a deep audio diagnostic, there's a MIUI engineering menu, which is a hidden part of the system that's designed to test hardware components, and you can run a speaker and microphone test, which is actually a test of the phone's ability to play and record sound, similar to a bell.
To get into the engineering menu, open the Phone app and dial the combination ##6484##. The CIT (Customer Integration Test) menu will appear on the screen. Find the "Receiver" (conversation speaker), "Speaker" (loud talk) and "Mic" (microphone) items in the list.
When you run these tests, you'll hear special beeps or you'll be able to record your voice and listen to it, and it's a more professional approach than just calling, because it allows you to isolate software problems from network problems. If there is sound in the engineering menu, and when calling it is not, the problem is in network settings or SIM-map.
βοΈ Xiaomi audio diagnostics
Be careful in the engineering menu: do not change the settings, the value of which you do not know. resetting the parameters of the radio module or changing the frequency ranges can lead to unstable communication or complete disappearance of the network.
Third-party call apps
The Google Play app store offers a variety of utilities that extend the functionality of a standard call, some of which, like Second Line or various VoIP clients, allow you to get a virtual number, and with a virtual number, you can call it from the main one, implementing a self-call scenario within the same device over the Internet.
Apps like Skype or Viber also allow you to call mobile numbers, and by registering for your account, you can use Skype In or similar paid options to get a city or mobile number that you can call from the main SIM, which creates a situation where you call "you" but through an Internet channel.
However, it should be borne in mind that such applications require a stable connection to the Internet, and the quality of communication in this case will depend on the speed of Wi-Fi or 4G, not on the quality of the GSM voice network.
- π VoIP technologies use the Internet to transmit voice.
- π Virtual numbers allow you to have multiple lines on one device.
- πΈ Payment for virtual numbers is usually monthly or minutely.
- π Energy consumption with Internet calls is higher than with conventional.
β οΈ Note: When using third-party calling apps, make sure you give them the necessary permissions to access the microphone and contacts in your privacy settings. MIUI, Otherwise, the call won't happen.
Typical problems and their solution
When setting up calls to your number, users may encounter various errors, most often the problem is that the operator blocks such calls. Many operators consider the "A rings A" routing error and interrupt the connection, in which case only using two SIM cards or calling from another device will help.
Another common problem is the Android/MIUI configuration conflict, which resets access rights or changes redirection options after the system update, and if the previously used method has stopped working, try restarting your smartphone or resetting your network settings to factory settings.
Also worth mentioning is the problem of echo, when you call yourself, especially when you're on speakerphone or when you're using two devices side by side, you often have a strong echo, which is a physical phenomenon where the sound from the speaker hits the microphone, and you can use headphones to eliminate it or turn it down.
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If you hear the "busy" beeps immediately after dialing, try to pause the room, and in some cases, adding a comma after the number in the forwarding field helps to give the network time to process.
The table below shows the main symptoms and ways to eliminate them:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| The horns are busy. | Blocking by the operator | Use the second SIM card |
| No sound. | Wrong device choice | Switch audio output to the menu |
| Defeat | Redirection error | Reset the settings ##002# |
| Quiet sound | Dynamic pollution | Clean the speaker grid |
Frequently Asked Questions (FAQ)
Can I call myself without a second SIM card?
Is it double the cost of calling yourself?
Why do you even have to call yourself?
Why is a call dropped when dialing your number?
Does this work on all Xiaomi models?
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The easiest and most reliable way to call yourself on Xiaomi is to use the second one. SIM-card or ask someone to dial your number, as direct calls are often blocked by the network.