First I connected through WiFi and ran the app and made a call to a ATT cell phone. And it worked. So then I turned off WiFi and turned on mobile data. Made another call to same ATT cell phone and boom! N7 T-Mobile walking talking phone.
I'm stock rooted, google hangouts dialer. I don't know if this works on ATT or Verizon because I stunt have a Sim. My call went over 'H'. I have no LTE connection in my room.
Anyone else want to confirm. But sweet
Sent from my Nexus 7 using XDA Free mobile app