- First check mobile device compatibility to check if your device supports Airtel VoLTE. The list of compatible device can be found here
- Check you SIM card and ensure that you have an Airtel 4G SIM. If not, swap your old SIM with a new 4G-enabled SIM by visiting the nearest Airtel store.
- Verify that the VoLTE voice-calling feature has been enabled on your smartphone:
- For iOS: Go to settings - Mobile Data - Mobile Data Options – Enable 4G – Turn on Voice and Data For Android: Settings - Mobile Network - Turn on VoLTE call
- In dual SIM phones, the Airtel SIM card should be inserted in a slot compatible with network mode as “4G/3G/2G (Auto)”.
- Follow these steps to enable the same – Settings - Sim networks - Preferred network type - 4G/3G/2G
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