Good to see the carriers working together on VoLTE interoperability versus only working of the caller/receiver are on the same carrier's network.
http://www.cnet.com/news/verizon-at...-services-will-work-together/#ftag=YHF65cbda0
http://www.cnet.com/news/verizon-at...-services-will-work-together/#ftag=YHF65cbda0