Seamless wifi calling/voice over LTE like new iphone

[chocolateyum]

Are there going to be any android devices coming out any time soone that will have seemless switching between wifi calling, regular calling, and voice over LTE like the new iPhone 6?

Thanks.

 

[HawaiiD]

Sony xperia z3 on T-Mobile does it

Sent from my Sony Xperia Z3 via the Coconut Wireless \ooo/...