As nice as it is that the big US carriers are starting to roll out high-quality calls over LTE, there’s a big catch: those calls don’t cross networks, so you’re frequently stuck with regular voice service. Happily, that’s going to change soon. AT&T…
Read more http://www.engadget.com/2014/11/03/att-verizon-volte-interoperability/?ncid=rss_truncated
