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VoLTE roaming: Making calls abroad via 4G

   

What is VoLTE?

VoLTE stands for «Voice over Long-Term Evolution» or «Voice over LTE». VoLTE allows you to make calls using the 4G mobile network. 

These are the benefits

  • Faster connection establishment
  • Better voice-transmission quality
  • Lower battery consumption
  • Make calls and surf at a fast speed at the same time
  • Best coverage and capacity

Requirements for VoLTE 

  • A 4G-/LTE-capable mobile phone; VoLTE roaming works for devices with iOS 15, Android 12 or higher
  • Latest version of the operating system installed. > Software update for iPhone and Android
  • VoLTE is activated on your mobile (it is usually active automatically; on Android devices, VoLTE can also be switched off if necessary)
  • The mobile service provider abroad is a Sunrise VoLTE roaming partner.

List of devices which support Sunrise VoLTE Roaming
List of mobile operators abroad with VoLTE roaming from Sunrise