When the network reception or signal strength on the Oppo smartphone is weak, we can enable Wi-Fi calling to make calls over a connected WiFi network.
Notice: Wi-Fi calling must be supported by the respective network operator.
- Tap on Settings
- Tap on SIM card & mobile data
- Choose a SIM card (Dual SIM)
- Tap on Wi-Fi Calling
- Enable or disable Wi-Fi Calling