The VoLTE activation will be done automatically when your 4G SIM card is inserted into a VoLTE certified phone. This is under the condition that your smartphone is updated to the latest firmware and that you are using a 4G SIM card.

iPhones:


Minimum iOS version needed is 10.1. To check iOS version:

  • Go to Settings > General > About > Version


How to update to iOS 10.1?

  • Go to Settings > General > Software Update


How to enable VoLTE on an iPhone?

  • Go to Settings > Mobile Data > Mobile Data Options > Enable 4G > Select Voice and Data


How to check if VoLTE is available on my phone?

  • Go to Settings > General > About > Carrier
  • Tap on Carrier, it will change to IMS Status: Voice & SMS

 

Android:


Samsung

  • Go to Settings > Connections > Mobile Networks > Enable VoLTE Calls


Huawei

  • Go to Settings > Wireless & networks > Mobile network > Enable 4G and VoLTE calls


Vivo

  • Go to Settings > Mobile network > Enable VoLTE HD Call


Oppo

For ColorOS 5.0 and above:

  • Go to Settings > Dual SIM & Cellular/ SIM Card & Mobile Data > Select one SIM card > Enable VoLTE Calls


For ColorOS 3.2:

  • Go to Settings > Dual SIM & Cellular > Select one SIM card > Enable VoLTE Calls


For ColorOS 3.0 & ColorOS 3.1:

  • Go to Settings > Call > Enable VoLTE voice call function (HD/ VoLTE icon will appear on the status bar once VoLTE voice call function is enabled)


If you still have questions about VoLTE activation, contact us here.