I am at my wits end
So for the last few months ALL my calls have been failing and disconnecting after speaking for about a minute. Sometimes instead of failing right off the bat, the call will go silent for about 1 minute then i'm greeted with my call party going "hello? did you hear anything of what i just said?" Then once i call somebody right back it goes silent after saying one word. Aside from my phone being useless for phone calls, my apps that require cell service like facebook, snapchat, instagram.. take forever to update or say "system error".
This made me think "Oh man F*** T-Mobile" but the thing is that my girlfriends 6 plus works fine. That and the fact that as soon as i went to the T-Mobile store the sales person said "take it to the apple store, it's a KNOWN iphone issue, the same thing happens to my bosses phone"
So they werent much help..
I have the newest iOS and i don't have a bunch of apps running. I tried setting my LTE to talk only instead of talk and data and nothing has helped.
iPhone 6, iOS 8.1.3