Who I have the same questioned this topic

I got the Droid Turbo 2 when it came out and when I got home, where I work, I could hear my calls but they couldn't hear me unless I went and stood outside in a "special spot."  This is obviously not conducive so I went back to the store and they thought I had a bad antennae.  They replaced the phone and I went back home.  It worked great for 2 weeks, as did my previous Droid Razor Maxx.  Then all of the sudden, same issue again.  I have got to have a phone that works and do not know how to even go about troubleshooting this problem.  I can hear the callers, but they cant hear me.  I also cannot type in numbers when prompted which tells me that my signal out is getting disrupted.  Any suggestions?