According to this, the latest carrier update for T-Mobile disabled HD Voice for the 5s and 5c:
http://gadgetunit.com/2013/09/20/mysterious-t-mobile-15-1-carrier-update-iphone-dissected-changelog/
Man! thanks a lot. I'm usually checking out tmonews and such and had not seen anything about it. Interestingly enough I am able to make FT over cellular calls with no problem. But yea HD audio was definately disabled!
According to this, the latest carrier update for T-Mobile disabled HD Voice for the 5s and 5c:
http://gadgetunit.com/2013/09/20/mysterious-t-mobile-15-1-carrier-update-iphone-dissected-changelog/
I have my handset coming in the next couple days. Should I just refuse the update?
Either that, or revert back to an older carrier profile like explained here: https://forums.macrumors.com/posts/18080722/
I have my handset coming in the next couple days. Should I just refuse the update?