Originally Posted by
tmiw
Pretty sure it's a Sprint limitation and not iOS, unless I'm missing something? My 6S on T-Mobile seems to send/receive SMS/MMS with no issues over WiFi, even with airplane mode on.
Yes, it is Sprint's problem. I have no problems with T-Mobile an WiFi calling that their phones simply cannot do (like not being able to be in airplane mode and have wifi calling on, or needing a network to send mms. If the network was good, I wouldn't need wifi calling...)