You noticed a mysterious VoLTE icon next to the network indicator on your Xiaomi screen and wondered what it meant: This little inscription hides behind it one of the key technologies of modern mobile communication, which radically changes the quality of voice calls. Unlike traditional calls through 2G/3G, Voice over LTE (voice 4G) Provides crystal clear sound, instant connection and the ability to simultaneously talk and use the Internet at high speed.
In this article, weβll go into detail about why the VoLTE icon appears on Xiaomi smartphones (including Redmi models, POCO And the flagship series, how this technology works in practice and what to do if the icon disappears, it reappears. You will also learn how to manually turn on or off VoLTE, which operators in Russia and the CIS support this standard, and why without it your smartphone can work inefficiently. We will pay special attention to common myths, such as the impact of VoLTE on battery consumption or compatibility with messengers like WhatsApp.
What is VoLTE and why is it important for Xiaomi?
VoLTE (Voice over LTE) β It's a fourth-generation voice technology (4G), which replaced the outdated standards 2G and 3G. Unlike traditional calls, where voice is encoded into an analog signal, VoLTE converts it into digital data packets, as in Internet transmission:
- ποΈ Sound quality in format HD β wide bandwidth (up to 24 kHz) provides a natural sound of the voice without noise.
- β‘ Instant connection β the call setup time is reduced by 5-7 second 3G) before 1-2 seconds.
- πΆ Parallel operation of the Internet - you can simultaneously talk and download files at high speed (in the Internet) 3G The internet is shut down during the call).
- π Battery savings β Smartphones donβt have to switch between 4G and 3G/2G.
For Xiaomi smartphones, VoLTE support is critical for two reasons: First, the company is actively abandoning legacy modules. 2G/3G In new models (for example, in Xiaomi). 13 Ultra or POCO F5), What makes VoLTE the only way to make calls on networks 4G. Second, without this technology in some regions (e.g. Europe or India), Xiaomi devices may not support voice communication at all due to a blackout. 3G-network.
It is important to understand that VoLTE is not the same as VoIP (Internet calls, like Skype or Viber). VoLTE works over the operatorβs mobile network and does not require the installation of additional applications. 4G) and RCS (extended SMS chat-enabled).
What does the icon VoLTE on Xiaomi: display options
The VoLTE icon on Xiaomi smartphones can be displayed differently depending on the device model, firmware version MIUI And the carrier. Here are the most common options:
| Display variant | Description | Example of models |
|---|---|---|
| VoLTE (text) | Classical label next to the network indicator (e.g, "4G VoLTE"). | Redmi Note 10/11, POCO X3/X4, Mi 11 |
| π HD | Icon of a tube with an inscription "HD" (Some operators, such as MegaFon). | Xiaomi 12/13 Series, Redmi K50 |
| π 4G+ | Volume symbol or icon "4G+" (more often on firmware for Europe). | POCO F4/F5, Xiaomi 11T |
| V in a circle | Minimalist icon (found on the MIUI Global for India). | Redmi 9/10, POCO M4 |
If the VoLTE icon flashes or periodically disappears, this may indicate:
- π Unstable coverage 4G β smartphone 3G, where VoLTE is not working.
- π± Lack of operator support β not all tariffs include VoLTE by default.
- βοΈ Failure in settings β for example, after updating MIUI.
On some models (for example, Xiaomi 13 Pro or XP) POCO F5 Pro) the icon may be hidden in the status bar "hidden icons". To display it, go to Settings β Notifications and status bar β Status indicators and enable the option "Show the VoLTE icon".
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After the update MIUI VoLTE icon is missing, try resetting the network settings: Settings β SIM-maps and mobile networks β Network resets. This often solves the problem without losing data.
How to enable VoLTE on Xiaomi: step-by-step instructions
By default, VoLTE on Xiaomi smartphones is usually activated, but in some cases it has to be turned on manually - for example, after changing the operator or resetting. A1 Xiaomi 14):
Make sure yours is yours. SIM-card 4G (nano-SIM)
Check the cover. 4G in your area (for example, through the operatorβs website)
Update. MIUI Up to the latest version (VoLTE may not work on old firmware)
Reboot your smartphone before setting up-->
- Open Settings and go to the section SIM-maps and mobile networks.
- Choose yours. SIM-card (if there are several).
- Tap on Network Type or Preferred Network Type (the name may vary).
- In the list of options, select "4G (preferably" or "LTE/4G/3G/2G (Auto)β Important: if you select only βOnly 4G", In areas without VoLTE coverage, calls will become impossible.
- Go back and find the VoLTE option (may be in the Submenu Additional or Calls).
- Activate the "Enable VoLTE" switch (or "Voice through" switch) LTE").
- Reboot your smartphone β this is a must for the application of changes.
If there is no VoLTE option in the settings, this can mean:
- π΅ Your operator does not support the technology (check on the website of MTS, Beeline or MegaFon).
- π§ Your firmware. MIUI not adapted to the region (e.g., to the Global ROM VoLTE may not be available for Russian operators in Europe).
- π οΈ Update required IMS-profile (more on this below).
How to update IMS-profile
VoLTE vs ViLTE vs VoWiFi: Whatβs the difference and whatβs better
In addition to VoLTE, Xiaomi smartphones can also feature other voice technologies via Internet protocols, and letβs see how they differ and which ones are better to use:
| Technology | Description | Advantages | Deficiencies |
|---|---|---|---|
| VoLTE | Voice calls through 4G-operator. | High quality, fast connection, roaming work. | It requires operator support, may not work in the subway. |
| ViLTE | Video calls through 4G (analogue of VoLTE, but with video). | Quality Full HD, Stability is better than in messengers. | It is not supported by all operators (in Russia only MegaFon and MTS). |
| VoWiFi | Calls via Wi-Fi (similar to VoLTE, but over a home network). | It's uncoated. 4G, battery-saving. | Quality depends on the speed of Wi-Fi, not all operators support. |
On Xiaomi smartphones, these technologies can work in parallel, for example, if you turn on both VoLTE and VoWiFi, the device will automatically choose the best option:
- πΆ In the confident zone 4G-coatings - VoLTE.
- π‘ When a weak signal of the mobile network β VoWiFi (if connected to Wi-Fi).
- π₯ For video calls - ViLTE (if the operator supports the).
Important: on some Xiaomi models (e.g. Redmi Note 12 or X-ray) POCO X5) VoWiFi and ViLTE are disabled by default. To activate them, you need to manually enable options in the settings. SIM-maps or update firmware to MIUI 14+.
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If you have a weak signal 4G at home, but there is stable Wi-Fi, turn on VoWiFi - this will save you from connection problems during calls.
Problems with VoLTE on Xiaomi: causes and solutions
Despite the obvious benefits, Xiaomi users often face problems when using VoLTE, and here are the most common situations and ways to fix them:
β οΈ Warning: If VoLTE calls start to interrupt or sound disappears after activation, check if Voice Improvement in Call Settings is activated. On some models (e.g. Xiaomi) 12T) She's in conflict with VoLTE.
| Problem. | Possible cause | Decision |
|---|---|---|
| VoLTE badge is there, but calls are not working | Incompatible IMS-profile or failure in the operator's network. | Update. IMS (code ##4636## or restart your smartphone. |
| VoLTE goes missing in roaming | The operator does not support VoLTE in roaming. | Turn on VoWiFi or use messengers. |
| Fast battery discharge after VoLTE powering on | Continuous search of the web 4G low-signal. | Turn off VoLTE or activate Battery Saving Mode. |
| No VoLTE option in the settings | Outdated firmware or regional restrictions. | Update. MIUI or install EU ROM. |
If none of the methods worked, check:
- π Tariff plan β some operators (e.g. Tele2) require additional option for VoLTE.
- π Settings APN β Incorrect settings can block VoLTE. Reset them to standard (Settings) β Mobile network β Access points (APN) β Reset).
- π‘οΈ firewall VPN β Some applications (such as AdGuard) may block IMS-traffic.
On models with MediaTek (for example, Redmi Note 11 or POCO M5) VoLTE problems are often solved by installing alternative firmware, such as Xiaomi.EU or Pixel Experience. However, this requires unlocking the bootloader and can deprive you of warranty.
VoLTE and battery consumption: myths and reality
One of the most common fears of Xiaomi users is that VoLTE increases battery consumption. Let's see how this is true.
On the one hand, VoLTE can actually affect autonomy, but only in two cases:
- If the smartphone is constantly in the zone of weak signal 4G And it wastes energy looking for a network.
- If VoLTE and VoWiFi are enabled simultaneously, the device is constantly switching between them.
On the other hand, under normal conditions, VoLTE saves charge because:
- π No need to switch between 4G and 3G/2G (as with regular calls).
- β‘ Calls are set faster, reducing the time of the communication module.
- π Optimized energy consumption in the transmission of voice packets.
To check the effect of VoLTE on the battery, use the built-in monitoring MIUI:
- Go to Settings β Battery and Performance β Battery Use.
- Slip on the schedule and select Network Use.
- Compare the cost of calls with and without VoLTE (you can turn off the technology for the day for the test).
β οΈ Note: On smartphones with Snapdragon processors 4xx (Like Redmi. 9A or POCO C31) VoLTE can consume more battery because of a weak modem, in which case it is better to turn off the technology and use messengers for calls.
VoLTE on Xiaomi in 2026: current trends
In 2026, VoLTE technology became even more popular due to global outage 3G-For example, in Russia, MegaFon and MTS plan to completely abandon the network. 3G By 2026, and Beeline has already begun to reduce coverage, which means that without VoLTE, Xiaomi smartphones in some regions will not be able to make regular calls.
Key trends for Xiaomi owners:
- π Expanding VoWiFi support β operators are actively implementing calls over Wi-Fi as a backup option.
- π± Refusal 3G-Modems β new Xiaomi models (for example, Xiaomi 14 or Xiaomi) POCO F6) supportive 3G, What makes VoLTE mandatory.
- π Strengthened requirements for IMS β Operators are now checking the certification of devices for VoLTE, so unofficial firmware may stop working.
The table below provides up-to-date information on VoLTE support by major Russian operators for 2026:
| Operator. | Support for VoLTE | Tariffs with VoLTE | Features |
|---|---|---|---|
| MTS | Yes (since 2018) | All tariffs with 4G | VoWiFi is available on the tariffs of MTS Smart |
| Beeline | Yes (from 2020) | "Everything," "No Limit," "My Beeline." | ViLTE is only available in Moscow and St. Petersburg |
| MegaFon | Yes (since 2017) | All tariffs with 4G | Supports ViLTE and VoWiFi |
| Tele2. | Partially (since 2022) | "My Tele2," "My Online." | VoLTE does not work in all regions. |
If you plan to buy a new Xiaomi in 2026, look for models that support VoNR (Voice over). 5G) β This is the next generation of technology that MTS and MegaFon are already testing:
- Xiaomi 14 / 14 Pro
- POCO F5 Pro
- Redmi K60 Ultra