VoLTE needs to be enabled on your device at all times to use the Onsim service.
If you are having issues making or receiving calls, the first thing you should check is that VoLTE is enabled.
To turn VoLTE on or off, follow the steps for your phone below.
On Android devices, the settings and operating systems vary slightly from one model to another. Below you'll find the most common settings to enable VoLTE.
Apple iPhone (Multiple Sims on Device)
- Go to Settings
- Mobile Data
- TAP landline Sim
- Tap Voice & Data.
- Tap the VoLTE toggle to turn it on.
Apple iPhone (Only Sim on Device)
- Go to Settings
- Mobile Data
- Mobile Data Options
- Tap Voice & Data.
- Tap the VoLTE toggle to turn it on.
Samsung Galaxy
- Go to Settings
- Tap Connections
- Mobile networks.
- Tap the VoLTE calls toggle to turn it on.
LG
- Open the Settings app.
- Tap Network & Internet > Mobile Networks.
- Tap the VoLTE toggle to turn it on.
Motorola
- Open the Settings app.
- Tap Network & Internet
- Mobile Network.
- Tap the VoLTE toggle to turn it on.
TCL
- Open the Settings app.
- Tap Sim Card & Mobile Network or Mobile Network.
- Tap the VoLTE toggle to turn it on.