Can Wi-Fi calling replace your phone carrier?

Recode's Kara Swisher and The Verge's Lauren Goode talk with Karma CEO Steven van Wel about the rise of Wi-Fi calling services such as Skype, Viber and Google Hangouts that are increasingly easy to use on mobile phones. Van Wel has had his iPhone on airplane mode for four years, using Karma's mobile hotspot product Karma Go and Wi-Fi calling apps to replace his phone's native dialer. He, Kara and Lauren respond to your comments and questions about what this means for the future of mobile.