Hello. I have a Samsung Galaxy S10. I use the Verizon Messages app for texting. My understanding is it is supposed to work over WiFi as well. Sometimes I am at a vacation home in the mountains where we do not have cell coverage. While on WiFi I can receive incoming texts (though sometimes delayed), but outgoing texts fail to send. Does anyone have any suggestions on how to correct? Additionally, WiFi calling does not always seem to work. If I put the phone in airplane mode and attempt to dial it will tell me I need to turn off airplane mode even though I am connected over WiFi. If I leave turn off airplane mode and attempt to call, sometimes the call will connect via WiFi and sometimes it will not connect at all. I have found the only reliable solution is to forward my calls to a Google Voice number when I have limited cell coverage, place the phone in airplane mode, and connect to WiFi.