Calls are made by the realme smartphone via the 2G/3G network by default.
When VoLTE (Voice over LTE) is enabled, calls are made over the 4G network, which provides better voice quality and sets up calls faster.
Note: Using VoLTE will also reduce battery consumption.
- Tap on Settings
- Tap on SIM card & mobile data
- Choose a SIM card (Dual SIM)
- Enable or disable VoLTE Calls