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Enable Pixel voLTE

Since Sri Lankan carriers not supporting Pixel natively, you may experience network difficulties. To counter that, we need to have a registered IMS status which include connecting Voice over LTE (VoLTE), Video Calling and VoWiFi.

Keep in mind that some networks like Mobitel, Dialog and Airtel are working on adding native voLTE support now. Before you begin, check if you already have voLTE and if not, double check with the carrier specific settings too and only continue if all that fails.

Enable voLTE from Carrier's End

Because we are still in the stone age, voLTE might not be enabled by default for your connection by the carrier. So you may need to request to activate from them. There is not much of a direct method for this.

Dialog

Request to activate the service by sending a SMS to 678 with

ACT 4GV

(This will activate both VoLTE & VoWiFi)

Mobitel

Contact Mobitel customer support using any of these methods:

Hutch

Contact Hutch customer support. Note: Hutch doesn't officially let other devices opt-in to voLTE. You may need to specify your device or get lucky with the agent.

  • cs@hutchison.lk
  • Hotline (24Hr): 1788 (Any Network)
  • WhatsApp: 0788 777 111 (Chat Only)

Airtel

Information not available at this time.

⚠️ Disclaimer: Follow these workaround methods at your own risk. No responsibilities will be taken by us if you encounter any issues.

Device-Specific Workarounds

Google Tensor Devices (Shizuku - No Root)

voLTE Only

Supported: Pixel 6 and later

Important:

The guide linked earlier (on GitHub) will not work anymore after the October 2025 feature drop.

Working fix:

  1. Install the "ims" app from Telegram.
    Download IMS APK
  2. Grant Shizuku to that app.
  3. Restart Shizuku (stop and start it). restart shizuku
  4. Enable the VoLTE toggle under Settings → Network & SIM cards → {your SIM}. enable volte
  5. Restart your phone (do not start Shizuku after that).
  6. Enable that toggle in Settings again. enable volte

Reference: GitHub Issue #384

That's it! It now works and survives restarts. YOU DO NOT HAVE TO USE THE OLD PIXEL IMS APP AT ALL!

Now continue with the carrier side activation steps.
You can safely turn off Developer Options after enabling with this method but it may need to be repeated after OTA updates.

Verify voLTE Activation

Ensure the activation of voLTE with the following steps:

  1. Dial *#*#4636#*#* in dialer
  2. Select "Phone information"
  3. Select the SIM (Select phone index option)
  4. Open the 3 dot menu
  5. Open "IMS Service Status"
  6. Check if your services are registered and available similar to below:
IMS status verification

VoLTE + 5G Support

Root Required

⚠️ Warning: These methods require root access. Rooting your device will void your warranty and may cause security risks. Proceed at your own risk. No responsibilities will be taken by us if you encounter any issues.

Supported devices:

  • Google Pixel 5
  • Google Pixel 5a
  • Google Pixel 4a 5G
  • Other devices untested

Installation Steps

Download Module from GitHub

Flash this module via your root solution (Magisk, KernelSU, or APatch).

For KSU or APatch Users:

If you are using KernelSU or APatch as your root solution, follow these additional steps:

  1. Flash Magisk by allowing the Magisk app root permission from KSU/APatch, then reboot
  2. Flash the voLTE/5G module in Magisk, then reboot
  3. Uninstall Magisk (will automatically reboot)
  4. Flash the voLTE/5G module in KSU/APatch, then reboot

After completing these steps, continue with the carrier side activation from the main Pixel notes page.