My wife just switched from a iPhone 5 to 6s and has been complaining of poor call quality on the new phone on the Sprint network here in AZ/Phoenix/Glendale. I have seen other reports of the 6 having similar problems. I have witnessed this as well.. its extremely hard to make out any words and I have a hard time hearing her when she calls me. Does anyone have a solution to this? There is a slight increase in quality when wifi calling, but overall the quality is still poor. Anybody else dealing with this?
EDIT:
Well I seemed to have stumbled on some information directly relating to our problem in this Sprint thread here:
https://community.sprint.com/baw/thread/175034?start=0&tstart=0 "
They even pulled the phones from different serial number groups to make sure. Gone to the sprint store twice and also numerous calls with Sprint. It's determined that it's a Sprint network issue here in Glendale, Arizona. Sprint is selling iphone 6 and cannot support them. Supposedly they are fixing towers however I've heard that story since I've been with Sprint for 9 years." This post is from 10/2014 and it seems Sprint hasn't made any significant changes to their infrastructure since then. To make matters worse on my wife's new 6s - the download speed is 0.30Mbps and upload is 0.02Mbps .. needless to say the phone is going back and she'll be reactivating her iphone 5.
EDIT:
Aye, hadn't seen this, but obviously I concur ^^