Dial Pad Tones on Xiaomi: A Complete Guide to Tonal Kit

What is Dial Pad Tones and Why You Need It on Xiaomi?

Have you ever faced a situation where you call a bank or customer service, and after dialing the number, the system asks you to enter additional numbers - but your Xiaomi stubbornly "silent"? DTMF-These are the tonal sounds that are made when you press the buttons on your phone's keyboard during a call, and without them, the automatic systems simply won't "hear" your commands.

On Xiaomi smartphones (including Redmi models, POCO and Mi) the default tone dial function is usually enabled, but it can sometimes get lost after updates MIUI Or manually tuned audio, and this is a particularly important problem for owners of devices with a different set of devices. MIUI 12/13/14, where the dialing interface has changed. In this article, we'll look at how to check and configure. DTMF-Signals why they may not work, and what to do if the tone dial "gluts" when calling via VoIP (WhatsApp, Telegram) or SIM-map.

It's important to understand that Dial Pad Tones is not just a button beeping, it's a standard DTMF (Dual-tone multi-frequency signaling) protocol that is used to interact with:

• 📞 IVR-menu (voice menu of banks, telecom operators, public services)
• 🏦 Banking robots (Sberbank, Tinkoff, VTB, etc.)
• 🤖 Voice assistants (Alice, Google Assistant for calls)
• 🔒 Authorization systems (Pin code input via phone)

If the signals are disabled or not working correctly, you will not be able to confirm payments, select a menu item in the call center, or even activate some services.

How to turn on or off Dial Pad Tones on Xiaomi

In most cases, the problem is solved in just 2 clicks. On Xiaomi smartphones, the path to adjusting the tone set depends on the version of MIUI and the phone model.

1. Open the phone application (pipe icon).
2. Press three points (⋮) in the upper right corner and select "Settings".
3. Go to Calls → Additional settings (or Call Settings → Tonal Dial in older versions).
4. Find the "Tonal Signals" (or "Dial Pad Tones") and switch the slider to the "On" position.

If you have a MIUI 14 or newer, the path may be slightly different.

Phone → Settings (⚙) → Sounds and vibrations → Tonal keyboard signals

On some models (such as the POCO F5 or Redmi Note 12), the option is hidden deeper:

Phone → Settings → System settings → SIM-card settings → Tonal set

Call the test number (e.g. 100 to check balance)

Press any number on the keyboard during the call.

Check if the phone is giving a tone signal.

Try to interact with IVR-menu (e.g. bank menu)

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If the signals still do not work after switching on, the problem may lie in:

• 📵 Hardware restrictions (defected speaker or microphone)
• 🔄 Conflict with applications (Truecaller, third-party calls)
• 📡 Communications operator (not supported) DTMF)
• 🔧 Failure in firmware (resetting settings required)

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If the tone signals don’t work on WhatsApp or Telegram, check the settings of these apps separately – they can use their own DTMF transmission algorithms.

Why Dial Pad Tones May Not Work: 5 Reasons Why Dial Pad Tones May Not Work

Even if you've turned on the tone set in the settings, the signals may not be transmitted. Let's look at the typical scenarios and how to eliminate them.

VoIP calls (WhatsApp, Telegram, Skype) are often used by their own DTMF transmission mechanisms, which may conflict with system settings, such as WhatsApp, where tone signals are transmitted only if:

• 📱 You have a stable internet connection (Wi-Fi or Wi-Fi) 4G/5G)
• 🔊 In the application settings, the Tonal set (if any) is included)
• 🔄 You are using the latest version of the messenger

⚠️ Note: Some Xiaomi models (e.g. Redmi) 9A or POCO M3) The tone signals may not work when the power saving mode is active. → Battery → Energy saving regime.

Difference Between “Tonal Dial” and “Button Pressing Sounds”

Many users confuse Dial Pad Tones with button presses (local sounds that only the owner of the phone hears).

• 🔊 Button pressing sounds are audio feedback when you touch the screen. → Sounds and vibrations → System sounds.
• 📡 Dial Pad Tones (DTMF) — These are signals that are transmitted over a telephone line and are recognized by automatic systems.

For example, if you call a bank and press "1" to select a language, you can:

• You hear the tap sound (if it is enabled in the phone settings).
• The banking system hears the tone signal (if it is turned on in the tone settings).

On Xiaomi, these features are set up separately. You can turn off button pressing sounds (to avoid distraction), but leave them on. DTMF-signal IVR-menu.

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If the tone dial does not work, but the sounds of the buttons are heard - the problem is in the transfer of DTMF, not in the hardware of the phone.

How to set the tone duration on Xiaomi

In some versions MIUI (for example, MIUI 13 for Xiaomi 12 or Redmi K50) There is a hidden setting that allows you to change the duration DTMF-This can be useful if the automatic systems don't have time to recognize short presses.

To change the duration:

1. Enter the phone app code ##4636##.
2. Select the item "Phone Information".
3. Scroll down to the DTMF Settings section (if not, your model does not support this feature).
4. Set the value of "Tone Duration" in the range of 70-150 ms (usually 100 ms by default).

If this menu is not available, you can use an alternative method using ADB (you need a computer and debugging mode on your phone):

adb shell settings put global dtmf_tone_length_ms 120

120 is the desired signal duration in milliseconds.

⚠️ Attention: Change in duration DTMF through the engineering menu or ADB If the signals are no longer recognized after the changes, return the standard settings (100 ms).

Dial Pad Tones and VoIP: features of WhatsApp, Telegram and Skype

When using voice calls via messengers (WhatsApp, Telegram, Skype), tonal signals can behave differently than with ordinary calls through the Internet. SIM-This is because VoIP applications use their own audio protocols, which are not always properly processed. DTMF.

Here’s how to set up a tone set in popular messengers:

• 📱 WhatsApp: Tonal signals are automatically transmitted, but may not work when the Internet is bad. Check that the app settings enable Use VoIP for calls.
• 💬 Telegram: Recent versions are supported DTMF, But only in voice chats (not regular calls) If the signals are not transmitted, try using the browser version of Telegram.
• 💻 Skype: Has a built-in keyboard for tone dialing (appears during a call). If the signals don't pass, check the microphone settings in Skype.

If the tone set doesn’t work in VoIP applications, try the following steps:

1. Switch from Wi-Fi to mobile internet (or vice versa).
2. Disable VPNs or proxy servers.
3. Update the app to the latest version.
4. Check if your antivirus or firewall is blocking DTMF transmission.

Important: WhatsApp only sends tonal signals when you call actively, and if you dial the number first and then try to type in the numbers, they won't be transmitted. That's a VoIP limitation, not a problem with your Xiaomi.

What to do if Dial Pad Tones is not working properly

If the tonal signals appear, disappear, or automatic systems do not recognize them, try the following methods of diagnosis and correction:

1. Check it out. SIM-Card: Insert it into another phone and check if it works DTMF. If so, there is a problem with your Xiaomi.
2. Reset network settings: Go to Settings → SIM-maps and mobile networks → Resetting network settings.
3. Clear the cache of the Phone app: Settings → Applications → App management → Phone → Storage → Clear the cache
4. Check the developer settings: If you have developer mode enabled, turn off the option to Disable DTMF Transfer (if any).
5. Update the firmware: Outdated versions of MIUI may contain bugs in the tone dial processing.

If nothing helps, try using alternative calling apps, such as:

• 📞 Google Phone (supported by Google) DTMF and has flexible settings)
• 🔄 Truecaller (but may conflict with a system call)
• 📱 ExDialer (popular caller with tone dial support)

⚠️ Note: Some Xiaomi models (such as the Mi 11 Ultra or Redmi Note 10 Pro) have a problem with the new model. DTMF It might be hardware-based optimization of sound, and that's where you can just go to a service center to flash the audio module.

FAQ: Frequent questions about Dial Pad Tones on Xiaomi