Re: AT&T rolled out VoLTE today in Atlanta...
Here's what I've learned...
In order for HD Voice to work...
- Both parties must be using either an iPhone 6 or 6 Plus, Samsung Note 4, Galaxy Mini or Galaxy 5.
- Both parties must be using AT&T as their carrier or a carrier that is also using VoLTE (Tmobile in Atlanta is also testing apparently).
- Both parties must be within the area where VoLTE is being introduced.
- Both parties must have network strength capable of LTE (duh).
...so as it sits, it's a pretty limited amount of scenarios where it will work (funny because I was using the Apple contact in my phone early in the thread, which was NOT using VoLTE, lol). I called my sister in San Fran and was not able to have a VoLTE connection...she said they were testing it there but it stopped a couple of weeks ago.
This is also being tested in Chicago and Dallas this week and next week.