After a week with the sprint Note 7 i received the first OTA with the latest security update for august and of course the wifi calling feature, not originally launch on day 1, but since that day i was unable to set up the feature, shows my address, select ok, then do a check again and is running in loop like that , never work, contact sprint tech support, they reprovisioned the phone again but no luck, never contacted again by sprint, the phone is " doone " anyway, so who cares ??? i do, i love wifi calling but i can't use it, if anybody has the same issues please share with me, i am curious to know if is the OTA failed to activate the feature or is the phone.:-