Xiaomi, Redmi and Poco smartphone owners often face the need to separate incoming calls, especially when one device is used for work and personal purposes. The standard extension number function in the classical sense of fixed telephony in a mobile network is implemented through special operator services or software solutions. Understanding these mechanisms allows you to effectively manage the flow of calls without buying a second device.
Modern MIUI or HyperOS shells provide flexible tools for sorting contacts, but creating a full-fledged extra number requires a comprehensive approach. Virtual PBX or forwarding services are key elements in building such a system. It is important to distinguish between software simulation of additional and real network functions.
In this guide, we will discuss in detail all available ways to organize additional numbering. GSM-Configuring your code, setting up cloud services, and using third-party software will help you never miss an important call from a customer or partner.
Technical features of additional numbers in mobile networks
Mobile was originally designed differently from landline, so the concept of an extra number is a different one. In classical telephony, an extra number is a short code within an organization that allows you to connect with a specific employee. In the world of Android and cellular operators, this role is often played by a forwarding service or a secretary.
When you dial an extra number, the phone actually sends a pause or wait signal before the internal code is dialed. On Xiaomi smartphones, special characters are responsible for this in the dial bar. DTMF (Dual Frequency Multifrequency Alarm) technology allows you to transmit the extra number digits after connecting to the main subscriber.
β οΈ Note: Not all cellular operators support automatic transmission of additional numbers through the contact menu.
There are two main types of implementation: network and software. Network depends on the operator's hardware, and software is implemented by the smartphone itself. MIUI Dialer can work with both types, but requires the right initial setup. Understanding the difference will help avoid situations where the call is simply reset.
Why does the supplemental not always work?
Use of pause and waiting symbols in contacts
The easiest way to save an extra number on Xiaomi is to use special pause symbols when recording a contact, which allows the phone to automatically dial the primary number, wait for the connection, and then send the extra code.
The semicolon represents a pause of 2 seconds, usually. If the answering machine or PBX didn't respond, you can increase the number of commas. The semicolon creates a standby mode that requires user confirmation to continue dialing. This is useful if you don't want the extra to be dialed automatically without your knowledge.
βοΈ Contact check of symbols
To add these characters to Redmi or Xiaomi, open the Phone app and go to dial. Click the menu button (three dots or gear) and select the option "Add pause" or "Add wait." The number bar will show corresponding signs. For example, the entry 89001234567,105 means dialing, a pause of 2 seconds and dialing an additional 105.
| Symbol | Name of name | Action. | Example of use |
|---|---|---|---|
| , | Pause | Automatic delay (2 seconds) | 89000000000,,123 |
| ; | Waiting. | Waiting for user confirmation | 89000000000;123 |
| P | Pause (code) | It is used in some firmware | |
| W | Wait (code) | Rarely, it depends on the region. |
It's important to calculate the pause time correctly, and if the PBX of the company is responding for a long time, one comma may not be enough, so you need to put two or three commas in a row, and the logic is simple: each comma adds a fixed waiting time before sending the next digits.
Redirection and grouping settings SIM-map
If your Xiaomi smartphone supports two SIM-So you can organize a primitive system of extra numbers by placing contacts over SIM cards, for example, the first SIM card can be set to redirect all calls from important customers, and the second one to regular calls.
Conditional redirects allow you to redirect calls if the line is busy, the subscriber is not responding or the phone is off. This can be configured via an engineering menu or a standard interface. Go to Settings β Applications β Call settings β Additional settings (the path may vary depending on the version of MIUI).
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Use USSD codes to quickly check your forwarding status, such as dial #002# to disable all redirects at once.
To create an additional effect, you can use the operator's Virtual Secretary service, in which case the incoming call first goes to the answering machine, which offers to press the number to connect to the desired department, setting up this scenario in the operator's personal account, not in the phone.
Grouping contacts also helps structure calls, so you can assign different melodies and vibrations to different groups, and although this doesn't create a technical number, it allows you to instantly identify the type of caller, and the selectivity of receiving calls is higher, which saves time.
Application of third-party applications for virtual PBX
It is not possible to create a full-fledged mini PBX with a voice menu (βPush 1 for sales..β) using regular means, requiring third-party applications that run over the Internet (VoIP) or use cloud services, Popular solutions include Google Voice (for certain regions), Skype for Business or specialized applications like Grandstream Wave.
These apps turn your Xiaomi into a full-fledged office phone, you get a virtual number that customers can call, you set up rules inside the app: where to send a call if you don't pick up the phone, or how to divide call flows, VoIP technology allows you to have as many additional numbers as you want tied to a single account.
β οΈ Attention: Virtual PBX applications require a stable Internet connection, with a weak Wi-Fi signal or a low-speed Internet connection. 4G The quality of the communication may deteriorate.
To install this solution, download the application from Google Play Market or GetApps. After you register, you will be asked to select a number or use an existing one. Next, in the application settings, find the "Internal Numbers" or "Extensions" section, which creates the logic of the additional ones.
Automation scenarios through Mi Drive and macros
Xiaomiβs ecosystem offers a powerful automation tool, the Mi Drive app (or scripts depending on the software version), which can create complex chains of action when an incoming call is made. For example, if a contact from the Work group rings, the phone can automatically turn on a voice recorder or send a message. SMS-notice.
While it doesn't create an extra number in the phone sense, it automates call processing. You can configure a script: "If it's 9:00 to 18:00 and an unknown number rings." β send out SMS"I'm in a meeting, I'll call you back. It unloads the line and gives you a professional impression.
To set up, go to the Security β Mi Drive app (or find βScriptsβ in the settings search). Create a new script, select an Inbound Call trigger, and add conditions. Action can be βPlay Sound,β βSend Message,β or βRun the App.β Automating processes greatly improves smartphone efficiency.
| Trigger. | Conditions | Action. | The result |
|---|---|---|---|
| Incoming call | Contact "Boss" | Enable the record. | The conversation persists |
| Incoming call | Unknown number. | Reject + SMS | Protection against spam |
| Time 22:00. | Any call. | Do Not Disturb mode | Silence at night |
| Bluetooth connection | Xiaomi | Turn on the loud. | Safety while driving |
Using macros is especially important for freelancers and small businesses, and you can create a script that automatically opens a clientβs card when you call from a specific number. CRM-It requires a deeper setup, but the result is worth it.
Solving problems with the definition of additional numbers
Often, users find that the number is not identified or displayed incorrectly, instead of the contact name, only the main number can be displayed, this is due to the way Android matches incoming data with entries in the phone book. If the number is written with a pause code and the call comes without it (or vice versa), it may not work.
To solve this problem, we recommend duplication of contacts. Create two entries: one with a full number and pauses (for outgoing ones), and the second with only the main number (for incoming ones), combine them into one contact if the interface allows, or create a separate group βIncoming additionals.β Duplicating entries is the most reliable way to avoid confusion.
β οΈ Note: When synced with a Google account, duplicate contacts may merge. check the phone book regularly after syncing.
There may also be problems when updating HyperOS firmware. Newer versions of the shell sometimes change the algorithm of the phone book. If the room pauses stop working after the update, try clearing the Phone and Contacts app cache. Path: Settings β Apps β All apps β Select the application β Clear the cache.
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Duplicating contacts with different number formats (with and without pauses) is the only guaranteed way to correctly display the name of the caller when using additional numbers.