IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.
- Android™ 9 Pie
Depending on the operator, your phone must sometimes be operator-branded and/or use operator-customized system software to be able to use VoLTE. Your subscription (incl. SIM card) must support VoLTE for the device model you're using. To inquire if your device, software, subscription and SIM card support VoLTE, contact your mobile network operator.
To enable VoLTE
- Make sure your specific Xperia® device model and network subscription support VoLTE.
- Find and tap Settings → Network & Internet → Mobile network → Advanced → Preferred network type → 4G (preferred) / 3G / GSM.
- Tap the switch beside Enable VoLTE to turn the feature on. If Enable VoLTE isn't available, contact your network operator.