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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.

 

Android 11 | ColorOS 11.0
Step 1: Tap on  Settings
Step 2: Tap on  SIM card & mobile data
Step 3: Choose a  SIM card   (Dual SIM)
Step 4: Tap on  Wi-Fi Calling
Step 5: Enable or disable  Wi-Fi Calling
  1. Tap on Settings
  2. Tap on SIM card & mobile data
  3. Choose a SIM card (Dual SIM)
  4. Tap on Wi-Fi Calling
  5. Enable or disable Wi-Fi Calling
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Oppo Instructions
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