Verizon's WiFi calling is available December 8th on two phones
 

Verizon didn't take too long to get the ball rolling on WiFi calling. The carrier has announced that it'll make the feature available to customers with Advanced Calling (read: voice over LTE) starting December 8th. Unfortunately, you'll have to be...

http://www.engadget.com/2015/12/06/v...-wifi-calling/