How to dial an extra number on Xiaomi phone: all ways

Introduction: Why you need extra numbers and how they work on Xiaomi

Add-on numbers are an integral part of corporate and office communication, but even in 2026, many Xiaomi users are facing difficulties dialing them. Unlike traditional city numbers, add-on numbers require special syntax, which may vary depending on the type of telephone exchange (PBX) and the version of the MIUI firmware. Redmi, POCO and Xiaomi 13/14 lineup support several types of dialing, but not all of them are intuitive.

The problem is complicated by the fact that modern PBX often used SIP-Telephony (VoIP), where additional numbers can be dialed either through pauses or through special characters (#, *). MIUI 14 and MIUI 15, including hidden features of the Phone app, and consider typical errors that prevent the call from reaching the subscriber.

We pay special attention to the differences between physical SIM-And if you call a lot of people in offices, hospitals or government offices, this guide will save you time and nerves.

Method 1: Standard set with pause (for most PBX)

The most universal method, which works on 90% of corporate and government PBXs, is to use a pause between the primary number and the extra number. In MIUI, the pause is denoted by the symbol; (circuma point) or p (Latin letter).

1. Open the phone app on your Xiaomi.
2. In the dial box, enter the primary number (for example, +74951234567).
3. Add the pause symbol: 📱 Option 1: Press and hold * (star) on the keyboard – a menu with a symbol will appear;. 🖱️ Option 2: Manually enter p (small Latin letter).

123

Press the call button.

An example of a correct dial is +74951234567;123 or 84951234567p123. After connecting to the PBX, the system will automatically send an additional number in 2-3 seconds.

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If the pause is too fast or slow, change the duration of the pause in the call settings: Settings → Applications → Phone → Dial → Duration of the pause (not available on all models).

⚠️ Note: Some operators (e.g. MTS or Beeline) may block the transfer of additional numbers when roaming, in which case use an alternative method with manual dialing after the PBX response.

Method 2: Manual dialing after the auto secretary's response

If the automatic pause dial does not work (for example, due to an old PBX or features) SIP-In the case of telephony, you have to enter the extra number manually after you connect:

1. Call the main number (without additional).
2. Wait for the answer of the autoinformer or the horns of the ATS.
3. When you hear an invitation to enter an additional one (for example, “Dial internal number”), use the digital keyboard during the call: 🔢 On Xiaomi, the keyboard appears automatically when you bring the phone to your ear. 📞 If the keyboard doesn’t appear, tap the screen – it will appear at the bottom.

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This method is versatile, but it requires patience: sometimes an autoinformer can eat the first digits if you type too quickly. On Xiaomi 13 Pro and newer models, the keyboard supports tactile recoil during the call, which makes it easier to type.

Method 3: Set through SIP-client (for VoIP telephony)

If your company is using IP-telephony (e.g. Asterisk, 3CX Or Zadarma, the standard methods might not work:

1. Install SIP-client (e.g., ZoiPer, Linphone or built-in VoIP call to the user) MIUI).
2. Set up a VoIP account (logins and passwords are issued by the administrator of the PBX).
3. When setting additional format use: 123@domain.ru;user=phone 123 — additional number, and domain.ru - address SIP-server.

On models POCO F5 Redmi Note 12 built-in SIP-The client supports automatic registration in corporate networks, but for this you need to:

• 🔧 Enable the option in Settings → SIM-maps and mobile networks → Additionally. → VoIP settings.
• 📋 Enter data from SIP-account (provided by the account) IT-department).
• 🔄 Reboot the phone to apply settings.

⚠️ Note: When using VoIP on Xiaomi with MIUI Global may need manual adjustment STUN-server for stable communication.

Features of the set on models with MIUI 14 and MIUI 15

In the latest versions of MIUI 14/15, the algorithm for dialing additional numbers has undergone changes.

The Xiaomi 14 Ultra and Redmi K60 Pro have added the “Fast Add-on” feature, which retains the commonly used combinations.

1. Open the “Contacts” and select the desired number.
2. Click on “Edit” → “Additional number”.
3. Save the combination (e.g.,.123).

Important: On MIUI 15, when dialing via Bluetooth headphones (such as Xiaomi Buds 4 Pro), pauses may not work, in which case use manual input or turn off the headphones before calling.

Common Mistakes and How to Avoid Them

Even experienced Xiaomi users sometimes make mistakes when dialing additional numbers.

• ❌ Use of a comma instead of a semicolon: Set +74951234567,123 will not work - it is necessary; or p.
• ❌ Too fast: If you put in an extra immediately after the beep, the PBX may not have time to process the command.
• ❌ Incorrect format for VoIP: B SIP-In addition, customers often require a prefix (e.g., *123 instead of 123).
• ❌ Ignoring regional features: In some countries (e.g. the United States) additional numbers are dialed in x (e.g., in the United States, +12125551234x123).

Another common problem is blocking. DTMF-If nothing happens after the dialing of the extra, check it out:

• 📵 Is Tonal Dialing Mode Included in Settings → SIM-map → Dialing number.
• 🔄 Switch from 4G on 3G (Sometimes, VoLTE interferes with transmission DTMF).

Is the pause set up correctly?|Is the tone set on?|Is there a stable signal on the network?|Checked settings SIP (if VoIP)-->

Additional functions: Preservation of additional contacts

So you can keep the number in contact so you don't have to enter it every time.

1. Open the Contacts app and create a new one or edit an existing one.
2. In the “Phone” field, enter the main number, then the pause symbol (;), and then the additional one.
3. Example: 84951234567;123.
4. Keep in touch. Now, when you call, you'll be dialing the extra automatically.

On MIUI 15, you can save multiple extras for a single number.

• 📇 In the contact card, click "Add more number».
• 🔢 Specify the same primary number but with a different additional number (e.g.;124 for another department).

If you frequently call one institution with different extras, use labels (e.g., “Accounting,” “Human Resources Department”) for convenience.

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Keeping the extra in touch saves time, but make sure the PBX doesn’t change the internal numbers – otherwise the call will go wrong.

FAQ: Frequent questions about dialing additional numbers on Xiaomi