How does the phone decide to use WiFi vs Other the Air (OTA)? If I'm in a fringe cell area, my phone seems to use OTA vs. WiFi. What will it take to "force" WiFi calling vs OTA? (Short of going into AirPlane Mode and turning on WiFi)
iPhone XR, iOS 13
Wi-Fi assist should probably be off in your situation, but that isn’t going to be the problem. It’s possible that your work network is blocking the port used by Wi-Fi calling (500), most company networks are pretty locked down and block most ports other than essential ones. Check with your administrator. Does Wi-Fi calling work for other users?
Wi-Fi assist should probably be off in your situation, but that isn’t going to be the problem. It’s possible that your work network is blocking the port used by Wi-Fi calling (500), most company networks are pretty locked down and block most ports other than essential ones. Check with your administrator. Does Wi-Fi calling work for other users?
It will always use Wi-Fi assuming your Wi-Fi connection is fast enough and you are connected to a Wi-Fi network that doesn’t block it (some public Wi-Fi does block it). Do you have Wi-Fi assist on in Settings/Cellular (at the bottom)?
Thanks for the reply. I wasn't aware of the WiFi assist feature (at the bottom) and YES it was ON.
As far as WiFi - On my company network which is both fast and open. I have the latest OS, seems like my phone will still choose OTA and the call quality is poor.
WiFi vs OTA Calling
