iPhone 6 Voice over LTE

In a joint press release today, AT&T and Verizon announced their voice over LTE (or VoLTE) interoperability plans for 2015. The companies say they are working to allow customers from the two carriers to make VoLTE calls between each of their networks.

Engineers from Verizon and AT&T have begun extensive testing in lab environments and then plan on moving to field trials. “This approach ensures customers will have a seamless experience making VoLTE HD Voice calls between networks,” the release said.

Requiring support from both phone and carrier, voice over LTE is a feature that enables HD phone calls, which offers far greater call quality than typical voice calling. It’s included in the iPhone 6 and 6 Plus, but availability varies for each wireless provider.

Of the 4 major US carriers, T-Mobile was the first to commit to VoLTE, and both and Verizon and AT&T have started testing the feature in limited markets. Sprint currently offers an HD Voice service, but does not plan to launch VoLTE until sometime next year.


  • Paymon John Vafa

    I’ve always wondered: would this toll against Data Usage?

    • Merman123

      Definitely not.

      • Zachary Sloane

        How do you figure? You are using LTE data, correct? Why would they NOT count it?

      • Bugs Bunnay

        i’m using LTE for calls and I don’t have a data plan. call is clear and crisp. I turned off LTE on my phone and it switched to 3g or lower and made a call. guess what? very poor call quality. did this on an android, same results.

      • Rowan09

        How do you have LTE with no data?

      • Bugs Bunnay

        i’m not sure what you’re trying to ask. I think you want to know how I can use (not have) LTE without a data plan right? LTE isn’t limited to browsing the internet or download stuff. LTE can be used for calls (if you’re carrier has it), text, and send picture messages. did that answer your question?

      • pauleebe

        The classification of data isn’t what you think. Technically, MMS is data, but they aren’t classified as such to make it easier to consumers to understand.

        As carriers can detect a VoLTE phone call versus data usage, I’d imagine they’d still classify calls as calls on your bill.

      • Zachary Sloane

        Interesting. That’s pretty cool then.

      • coLin

        they have to make money somehow right

    • iNeedANameHere

      I already have Verzion’s VoLTE enabled on my iPhone 6 and it hasn’t been counting against my data. It shows up as a regular call on my bill.

  • Bugs Bunnay

    looks like some are late to the game.

  • JayDee917

    Been using VoLTE since the iPhone 6 launch on T-mobile and really like it. Wi-Fi calls sound great as well. Nice the other carriers are starting to catch up.