Enjoy seamless connectivity and crystal clear conversations with VoWiFi.


Voice over WiFi - or VoWiFi - lets you make HD quality calls on WiFi connections, just like you would on your mobile cellular network with maximum clarity.

Automatic switching without interruptions.


Even if you move out of range of your WiFi network while on a VoWiFi call, the connection switches seamlessly between a WiFi connection and your mobile network. Plus, there is no additional subscription charge or app download required.

What you need to experience VoWiFi.


  • A StarHub 4G mobile plan activated with HD Voice+.
  • Enable 4G for both voice and data in your phone settings.
  • Enable VoWiFi and WiFi-calling feature in your phone settings.
  • You are located in a WiFi enabled area when making a call.
  • The mobile call is made using a compatible handset.
Compatible Handsets

You'll need an iPhone device on iOS 11.3 and above. Compatible models as follow: 

  • iPhone 6, iPhone 6 Plus, iPhone 6S and iPhone 6S Plus
  • iPhone 7, iPhone 7 Plus, iPhone 7s and iPhone 7S Plus
  • iPhone SE
  • iPhone 8 and iPhone 8 Plus
  • iPhone X, iPhone XS, iPhone XS Max and iPhone XR
  • iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max

You'll need a Samsung device on Android 10. Compatible models as follow: 

  • Samsung Galaxy A10, Samsung Galaxy A30, Samsung Galaxy A50, Samsung Galaxy A70 and Samsung Galaxy A80
  • Samsung Galaxy Fold 
  • Samsung Galaxy Note9, Samsung Galaxy Note10 and Samsung Galaxy Note10+ 
  • Samsung Galaxy S10, Samsung Galaxy S10+, Samsung Galaxy S10e, Samsung Galaxy S20, Samsung Galaxy S20+ and Samsung Galaxy S20 Ultra 5G