WiFi calling is closely associated with almost all the recent generation smartphones. This is a very nice technology through which we can easily make phone calls without any kind of SIM card. Let’s find out today if the Oppo K9x smartphone supports this important feature.
Oppo K9x phone comes with a dual SIM card and a wifi calling facility. You can make phone calls through it without using a SIM card. But for this, you must enable the WiFi calling system from phone settings and have a WiFi connection.