Tutorial

Mobile feature: How to activate VoLTE - 4G Calls or VoWiFi - WiFi Calls?


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"VoLTE" (Voice over LTE) and "VoWiFi" (Voice over WiFi) are technological advancements that allow you to make calls over 4G or WiFi.

 

VoLTE is a technological advancement that allows you to make calls via 4G. This improves the quality and speed of the call.

VoWiFi allows you to make calls in areas where coverage is poor or when you cannot access the cellular network.

Here is a tutorial that will guide you through the process of setting up these features on your phone:

 

Procedure on Android

To activate VoLTE follow these steps:

  • Go to Settings
  • Select Connections
  • Select Mobile networks
  • Turn on the "VoLTE Calls SIM1" switch

 

To activate VoWiFi follow these steps:

  • Go to "Phone" then "Keypad"
  • Select the 3 dots at the top right
  • Select Settings
  • Turn on the "Wi-Fi Calling" switch

 

 

Procedure on iOS

To activate VoLTE follow these steps:

  • Go to Settings
  • Select Cellular Data
  • Select Options
  • Select Voice and Data
  • Turn on the "VoLTE" switch

To activate VoWiFi follow these steps:

  • Go to Settings
  • Select Mobile Data
  • Select Wi-Fi Calling
  • Turn on the "Wi-Fi Calling on this iPhone" switch

 

 

Below is a list of the most popular Android and iOS devices compatible with VoLTE and VoWiFi features:

  • Galaxy S Series (S8 / S8+ and newer models) including unlocked Samsung models.
  • Galaxy Note Series (Note 8 and newer models), including unlocked Samsung models.
  • Galaxy A Series (A10, A20, A32, A50, etc.) including unlocked Samsung models.
  • LG G Series (G7 and newer models)
  • One Plus 7 Pro 5G and newer models
  • All iPhone models starting from the 6 and later.

 

Billing for WiFi & 4G Calls

  • Tango Smart and Tango Infinity Subscription

Calls made via WiFi or 4G will be deducted from your voice units. If you have used up all the voice or data units included in your Tango Smart or Tango Infinity subscription, WiFi or 4G calls will be charged at the standard call rate.

  • Tango K.O. Smart Subscriptions

Calls made via WiFi or 4G will be deducted from your voice units. If you have used up all the voice or data units included in your Tango Smart or Tango Infinity subscription, WiFi or 4G calls will be charged at the standard call rate.

  • Tango K.O.

Subscriptions You will be charged the standard per-minute rate for a call.

 

Important: In Luxembourg, you can't make emergency calls over WiFi. Always use your regular mobile network for these calls.

 

Travelling abroad? Make sure you are prepared for surfing and calling!

The best way to do this is to ensure your device is 4G or 5G compatible and that the VoLTE functionality is switched on.


An increasing amount of operators across the world have started to switch off their 3G and 2G networks, like for example the USA.


If you are travelling to a country where this has already happened, it is important to ensure the following:

  • Make sure that your device is 4G or 5G compatible.
    • To Surf: If no 3G is available, you will need a 4G or 5G phone to browse the internet
    • To make calls: If neither 2G or 3G is available you will need a VoLTE capable device to make voice call, please ensure that this functionality is switched on.

 

Opting for an American SIM card will not resolve this issue, as it pertains to the phone itself rather than the service plan.

 

If in doubt, and to help you prepare for your trip, refer to the list of 4G/5G-compatible mobiles above.

 
 
 
 
 
 
 
 
 
 
 
 
 
 

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