on 15-11-2019 09:51 AM
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15-11-2019 10:52 PM - edited 15-11-2019 10:53 PM
Wifi Calling means your cellular calls are routed through VoIP technology. I am not aware of a definite way to determine whether it is routed through cellular or Wifi but once it is turned on, it'll automatically be managed by the network provider.
This also means that you will be able to make calls at standard tarriffs when cellular is out of reach and Wifi is connected. This includes when going abroad and you have not provisioned for international roaming.
Yes, wifi calling really works.
Need more clarity? Let me know.
on 19-11-2019 02:35 PM
on 19-11-2019 04:59 PM
I am not aware of a definite way to force calls over wifi, but as mentioned before, the network manages the call routing automatically. In my experience, a vast number of high end Samsung phones do have the function of Wifi Calling while there is weak cellular reception. The way I determine whether wifi calling is turned on or not is a symbol named 'VoLTE' in the notification bar at the top next to the signal strength indicator.
Although Wifi Calling may be of much higher audio quality than cellular, the person you called may still be on cellular and evidently will bring down the call quality to cellular.