Many times we fall into a situation where we don’t have a balance on our phone or fall into a situation where we can’t take the balance on the phone. Falling into these situations when we need to make an urgent phone call, we can do it through WiFi calling if there is a WiFi connection. This special call is called WiFi calling.
Oppo Reno8 pro (China) phone supports the wifi calling system. If your phone is out of balance, you can make phone calls directly to your contacts via WiFi calling, provided that you have a WiFi connection and must enable the WiFi calling system from your settings.