I'm having ongoing issues with Wi-Fi calling.
Randomly (but more often then not) when our iPhones (iPhone XR, XS, 7) using older and latest iOS versions go into stand-by mode Wi-Fi calling is disconnected even though you are still connected to your AP. It makes no difference which AP is used.
The Wi-Fi antenna icon is still active but the "Wi-Fi Calling" text is missing and then comes back after about 10 seconds (sometimes less) when the iPhone is "awake". VOIP Services such as WhatsApp or Facetime work fine when in standby mode.
Sometimes (often actually) when an SMS or short code is sent to me (received) while I am using Wi-Fi calling, it won't show up until I disable Wi-Fi calling or Airplane mode when I connect using my direct cellular connection. Even when celluar connectivity is active, Wi-Fi calling overides it and calls are sent directly to voicemail or SMS are queued until the next time you disconnect Wi-Fi calling.
Randomly (but more often then not) when our iPhones (iPhone XR, XS, 7) using older and latest iOS versions go into stand-by mode Wi-Fi calling is disconnected even though you are still connected to your AP. It makes no difference which AP is used.
The Wi-Fi antenna icon is still active but the "Wi-Fi Calling" text is missing and then comes back after about 10 seconds (sometimes less) when the iPhone is "awake". VOIP Services such as WhatsApp or Facetime work fine when in standby mode.
Sometimes (often actually) when an SMS or short code is sent to me (received) while I am using Wi-Fi calling, it won't show up until I disable Wi-Fi calling or Airplane mode when I connect using my direct cellular connection. Even when celluar connectivity is active, Wi-Fi calling overides it and calls are sent directly to voicemail or SMS are queued until the next time you disconnect Wi-Fi calling.