With VoLTE, your calls go directly over Sunrise’s modern 4G+/LTE mobile network.
Your benefits:
✓ Excellent call quality
✓ Faster call setup
✓ Use mobile data while you’re on a call
Requirements for VoLTE
- A VoLTE-capable device (e.g., smartphone, tablet, or smartwatch)
- The latest software version on your device
→ Software update guide - 4G+/LTE coverage at your location
→ Coverage map
How do I enable VoLTE?
Activation differs by manufacturer. Select your device below and follow the steps. You’ll also find helpful YouTube videos.
Tip: If you use a TCL Family Watch MT42 or MT46, you can enable VoLTE directly on the watch:
Menu → Settings → VoLTE
Enable VoLTE by manufacturer
Apple (iPhone & iPad)
- Open Settings
- Mobile Data → Mobile Data Options → Voice & Data
- Enable VoLTE
Samsung
- Open Settings
- Connections → Mobile networks
- Turn on VoLTE calls
Huawei
- Open Settings
- Select Mobile network
- Enable VoLTE calls
Xiaomi / Redmi
- Settings → SIM cards & mobile networks
- Select your SIM
- Turn on Enable VoLTE
OnePlus
- Settings → Wi-Fi & Internet
- Select your SIM
- Enable VoLTE
TCL Family Watch MT42 / MT46
- Menu → Settings
- Enable VoLTE
There is currently no official YouTube tutorial for TCL watches.
Other manufacturers
If your device isn’t listed here:
- Search the manual for “VoLTE” or “HD Voice”
- Check the manufacturer’s website
- Or contact the manufacturer’s support
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