I purchased an unlocked android phone. One of the reasons for purchasing a new one was to be able to have wi-fi calling. When I tried to engage this feature it wouldn't let me. I called Cricket to enable this feature but they told me that unless I buy the android phone from them I wouldn't be able to use this feature. They do however allow it on the unlocked Apple phones. Evidently they are able to block this for android but not for Apple.I User's recommendation: If you own a android phone beware, you won't be able to use all the features the phone has.