[NSX38]

Just curious if the 1520 supported AMR-WB (Adaptive Multi-Rate Wide Band) Audio?? Got to admit that the HD voice is been nice on T-Mobile, the calls are crystal clear when you have a WB call in place with the phones that support it. I know AT&T said something about releasing HD voice sometime this year right???

[Laura Knotek]

I have no idea how accurate Wikipedia is, but the article says it is supported. List of Smartphones using HD Voice - Wikipedia, the free encyclopedia

[NSX38]

Thanks for the link, I hope that's correct because that would be a bummer if it didn't support HD voice when AT&T supposedly releases it sometime this year hopefully.

[NSX38]

Never mind I found out that it does have AMR-WB Audio from Nokia spec sheet. Unless AT&T stripped it out of the phone like it did with the Qi wireless charging? Hopefully not

[Joe Rodak]

Sorry to revive an old thread but I just got the new Lumia 950 today and when a coworker called me from his Lumia 950 it indicated HD Voice but when I put the same sim card back in my 1520 it does not have HD voice and it drops from LTE to 4G for voice calls. Looks like AT&T stripped it out.

[pankaj981]

Sorry to revive an old thread but I just got the new Lumia 950 today and when a coworker called me from his Lumia 950 it indicated HD Voice but when I put the same sim card back in my 1520 it does not have HD voice and it drops from LTE to 4G for voice calls. Looks like AT&T stripped it out.

HD Voice and VoLTE are different things. The Lumia 810 supported HD voice but lacked LTE. The 1520 may or may not support VoLTE.