Voice over LTE (VoLTE) To Cross Boundaries At Verizon Wireless and AT&T Boarders, Many More Carriers To Join.

Voice over LTE (VoLTE) Between AT&T and Verizon.

 AT&T and Verizon are planing to make voice over LTE, VoLTE, work between their networks in 2015. If the plans works out well, my iPhone(s) will be able to talk to my Android phones, with clear, crystal clear HD Voice calls. Now a days it is clear but sometimes have to guess what the other party is saying, even over regular voice lines.
"Customers use their smartphones to connect with friends, family and colleagues across service providers and around the world.  Interoperability among all VoLTE providers takes connectivity to the next level with HD quality voice and additional features that customers want, We're pleased to be working with AT&T as our first inter-operating carrier, and we look forward to working with other operators as VoLTE continues to grow." said Tony Melone, chief technology officer at Verizon.
"Interoperability of VoLTE between wireless carriers is crucial to a positive customer experience," said Krish Prabhu, president, AT&T Labs and Chief Technology Officer, AT&T.  "Customers expect to be able to connect anywhere, anytime– and as LTE technology continues to evolve, it's imperative that we provide a seamless experience between carriers. We are pleased to work with Verizon on this initiative.  We continue to work with others in the industry on similar collaborative arrangements and hope to see similar collaboration across the industry in the near future." 

Verizon's Advanced Calling 1.0 services was introduced across the United States in September, and will continue to make Advanced Calling-capable smartphones available to its customers. AT&T introduced VoLTE services in its initial markets earlier this year, and will continue to expand to more devices and more markets across the United States.     

AT&T and Verizon Wireless have worked closely with the GSMA on this initiative. The GSMA's Network 2020 program is designed to encourage mobile operators globally to accelerate the adoption of native IP Communication Services such as voice and video calling over LTE as well as Rich Communications Services (RCS).

Press Release.