Xiaomi WiFi Calling Not Working on Telia Sweden

Xiaomi WiFi Calling Not Working on Telia Sweden (2026 Fix)

If your Xiaomi, Redmi, or POCO phone won't make or receive calls over Wi-Fi, the WiFi Calling icon doesn't appear, or calls drop when switching to Wi-Fi on Telia Sweden, this guide covers common troubleshooting steps. This feature is also known as VoWiFi. This issue can occur across Sweden, from Stockholm and Gothenburg to Malmö, Uppsala, and Linköping.

Before You Start – Quick Checks

  • Check your plan – WiFi Calling availability can depend on your specific Telia subscription and account provisioning. Some older plans or MVNOs (like Halebop) may have restrictions.
  • Ensure Wi-Fi is stable – WiFi Calling requires a stable internet connection. Public hotspots, hotel Wi-Fi, or networks with captive portals may restrict the traffic required for WiFi Calling.
  • Toggle Airplane Mode – Turn on for 30 seconds, then off to refresh network registration.
  • Restart your phone – Clears temporary software glitches.

If these quick checks don't work, continue with the step-by-step guide below.

Quick Navigation

Diagnose the Issue First

Before making changes, determine the pattern of your WiFi Calling issue:

  • Is the option visible but not working? – The toggle is available, but calls still use the mobile network.
  • Is the option missing entirely? – The WiFi Calling setting does not appear in your SIM settings.
  • Does it work intermittently? – WiFi Calling works sometimes but disables itself after a few hours.
  • Do calls drop when switching between Wi-Fi and mobile? – If calls drop specifically when moving between Wi-Fi and mobile coverage, the problem may involve handover rather than basic WiFi Calling activation.
  • Test your SIM in another WiFi-Calling capable phone – This is the quickest way to identify if the issue is your Xiaomi device, your SIM, or your plan.

Why This Happens

  • Plan or carrier restrictions – WiFi Calling may not be available on all Telia plans or MVNOs.
  • IMS registration failure – WiFi Calling depends on IMS registration. If IMS registration fails, WiFi Calling may not work even when the setting is enabled.
  • Xiaomi carrier check – Some Xiaomi firmware versions have a carrier check that can hide or block WiFi Calling.
  • Wi-Fi network restrictions – Some Wi-Fi networks block the ports required for WiFi Calling.
  • Software or configuration issues – Incorrect network settings or outdated system software can prevent WiFi Calling from working.

Check Plan & Carrier Support

Before troubleshooting your device, verify that your Telia plan supports WiFi Calling:

  • Telia Sweden – Supports WiFi Calling, but availability on Xiaomi devices can depend on the subscription, device model, software/firmware and carrier provisioning.
  • Telia MVNOs – Support varies. Halebop may have different compatibility.
  • Check your account – Log in to the Mitt Telia app or portal to verify your plan includes WiFi Calling.

Important: Carrier Check

  • If WiFi Calling is not provisioned on your account, the feature may not work even if the option is visible on the phone.
  • Contact Telia directly to confirm whether your specific tariff includes WiFi Calling.

Test SIM in Another Phone

Why this matters: This is the quickest way to determine if the issue is your Xiaomi device or your SIM/plan.

  • Insert your Telia SIM into another phone that supports WiFi Calling
  • Check if WiFi Calling works on the other phone
  • If WiFi Calling works normally on the other phone, the issue is more likely related to your Xiaomi device or its configuration – continue with the steps below
  • If WiFi Calling also doesn't work on the other phone, the problem is more likely related to your SIM, plan, or carrier provisioning – contact Telia

If the SIM works normally in another phone, continue with Step 1.

Step 1: Enable WiFi Calling in Settings

Why this matters: WiFi Calling must be explicitly enabled on your Xiaomi device.

  • Settings → SIM cards & mobile networks
  • Tap your Telia SIM
  • Look for Wi-Fi calling, Make calls using Wi-Fi, or VoWiFi and toggle it ON

If the option is not visible:

  • Some Xiaomi models may require you to connect to a Wi-Fi network first before the option appears.
  • Check Settings → Additional settings → Wi-Fi calling.
  • Use the search function in Settings and type "WiFi Calling".

If WiFi Calling is enabled but still not working, move to Step 2.

Step 2: Check IMS Registration Status (If Available)

Why this matters: WiFi Calling depends on IMS registration. If IMS registration fails, WiFi Calling may not work even when the setting is enabled.

If your Xiaomi exposes the Android testing/IMS status menu, you can use it as a diagnostic check:

  1. Open the Phone app
  2. Dial *#*#4636#*#*
  3. Select Phone information
  4. Tap the three dots in the top right corner
  5. Select IMS Service Status
  6. Check if Voice over Wi-Fi shows as Available or Registered

If IMS shows "Not Registered":

  • Try toggling Airplane Mode on and off to re-register
  • Try toggling WiFi Calling off and on in Settings
  • If IMS registration fails, this may indicate a provisioning issue on Telia's side

Note: The exact menu and available IMS information vary by model and HyperOS/MIUI version. This menu is not available on every Xiaomi device. If the menu is not available, proceed to Step 3.

If WiFi Calling still doesn't work, move to Step 3.

Step 3: Check Xiaomi's VoWiFi Diagnostic Toggle

Why this matters: Xiaomi devices have a hidden diagnostic code that can toggle VoWiFi functionality. This is a Xiaomi-specific diagnostic toggle, not a carrier activation code. It does not provision WiFi Calling on your account.

  1. Open the Phone app
  2. Dial *#*#869434#*#*
  3. This may enable or disable the VoWiFi function on supported Xiaomi devices
  4. Restart your phone and check if WiFi Calling works

Note: This code may not work on all Xiaomi devices or ROM versions. If it doesn't work, proceed to Step 4.

If WiFi Calling still doesn't work, move to Step 4.

Step 4: Disable MAC Address Randomization (Secondary Test)

Why this matters: If WiFi Calling works on one Wi-Fi network but fails on another, testing the network's MAC-address configuration can help rule out a local Wi-Fi compatibility issue.

  • Settings → Wi-Fi
  • Tap the network you are connected to
  • Select Privacy or MAC address type
  • Change from Randomized MAC to Device MAC
  • Reconnect to the Wi-Fi network and test WiFi Calling

Note: This is a secondary diagnostic test. If WiFi Calling works on some networks but not others, this is worth checking.

If WiFi Calling still doesn't work, move to Step 5.

Step 5: Reset Network Settings

Why this matters: This resets Wi-Fi, mobile data, and Bluetooth settings without deleting personal data. It clears corrupted network configurations that may be preventing WiFi Calling.

  1. Settings → Connection & sharing (HyperOS) or Settings → Additional settings → Backup & reset (MIUI)
  2. Select Reset Wi-Fi, mobile & Bluetooth or Reset network settings
  3. Confirm the reset
  4. Restart your phone
  5. Re-enable WiFi Calling in Settings
  6. Test if WiFi Calling works

If WiFi Calling still doesn't work, move to Step 6.

Step 6: Check for System Updates

Why this matters: Software updates often include modem firmware improvements that can enable or improve WiFi Calling.

  1. Settings → About phone → Check for updates
  2. Install any available updates
  3. Restart your phone and check if WiFi Calling works

If you're already on the latest version and WiFi Calling still doesn't work, contact Telia or Xiaomi support.

Decision Box – What to Do Next?

Still not working? Let's narrow it down:

  • ✓ SIM has no WiFi Calling in another phone? → Contact Telia (plan or provisioning issue)
  • ✓ SIM works elsewhere but not on your Xiaomi? → Device-specific issue (continue troubleshooting above)
  • ✓ WiFi Calling option is missing? → Check plan support, ROM version, or try the hidden diagnostic toggle (Step 3)
  • ✓ WiFi Calling works intermittently? → Check IMS registration (Step 2) and MAC address randomization (Step 4)
  • ✓ Calls drop when switching between Wi-Fi and mobile? → This may involve handover rather than basic activation; check IMS registration and contact Telia
  • ✓ Nothing works? → Contact Telia to check account provisioning and device compatibility

Contact Carrier (When Required)

Contact Telia Sweden if:

  • Your SIM has no WiFi Calling in other phones as well (plan or provisioning issue)
  • You've tried all steps above and WiFi Calling still doesn't work
  • You need to verify that your plan includes WiFi Calling
  • You need to check that your SIM and account are properly provisioned for WiFi Calling

Telia Support (Sweden)

  • Call 90 222 from your Telia phone
  • Telia Help Centre: telia.se/hjalp
  • Telia App: Mitt Telia (available on Google Play Store)

Contact Xiaomi EU Support if:

  • You've tried all steps above and WiFi Calling still doesn't work
  • You've tested your SIM in another phone and it works normally
  • You suspect a software or hardware issue with your device

Xiaomi EU Support

Final Verdict

If your Xiaomi won't connect to WiFi Calling on Telia Sweden, start by checking that your plan actually supports the feature – WiFi Calling availability can depend on your specific Telia subscription and account provisioning. If your plan supports it, test your SIM in another phone to determine if the issue is device-specific. On the device side, ensure WiFi Calling is enabled in Settings, and check IMS registration status if available. If the option is missing, try the Xiaomi diagnostic toggle *#*#869434#*#* as a diagnostic step. If the issue persists, reset network settings or check for system updates. Contact Telia to verify your account provisioning if none of these steps resolve the problem.

Frequently Asked Questions

Does Telia Sweden support WiFi Calling on Xiaomi?

Telia Sweden supports WiFi Calling, but availability on Xiaomi devices can depend on the subscription, device model, software/firmware and carrier provisioning.

Why can't I find the WiFi Calling option on my Xiaomi?

If the option is missing, your plan may not support WiFi Calling, or your device may not have the feature enabled. Try connecting to a Wi-Fi network first, as the option sometimes only appears when Wi-Fi is active. You can also try the hidden diagnostic toggle *#*#869434#*#*.

What is the Xiaomi VoWiFi diagnostic code?

*#*#869434#*#* can toggle VoWiFi-related functionality on supported Xiaomi devices. It is a device-side diagnostic toggle, not a Telia activation or account-provisioning code.

Why does WiFi Calling stop working after a few hours?

Intermittent WiFi Calling can be related to IMS registration, the Wi-Fi network, device software, or handover between Wi-Fi and mobile networks. Test another Wi-Fi network first. If the problem follows the SIM across compatible phones, contact Telia to check provisioning.

How do I check IMS status on Xiaomi?

If available, dial *#*#4636#*#* in the Phone app, select Phone information, tap the three dots, and select IMS Service Status. Check if Voice over Wi-Fi shows as Available or Registered. The exact menu and available IMS information vary by model and HyperOS/MIUI version.

Do these fixes work on EU Xiaomi devices?

The general troubleshooting steps apply to Xiaomi, Redmi and POCO phones in Sweden and the EU, although menu names and available options can vary by model and software version.

What is the difference between WiFi Calling and VoWiFi?

WiFi Calling and VoWiFi (Voice over Wi-Fi) refer to the same feature – making calls over a Wi-Fi network instead of the mobile network.

Note: This guide is updated for 2026. Menu names may vary slightly between HyperOS and MIUI versions. WiFi Calling availability depends on your specific Telia plan and device model.

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