Found a fix for the Moto E problem with one sided phone calls

A common and unsolved problem with the Moto E is apparently calls that connect but cannot be heard without using speakerphone or a third party speaker system. (i.e. headphones). I had this problem and the only "solution" I could find was to reset your phone. I didn't like this option so I messed around with the settings on my phone and found the setting that was causing the problem.
I don't know if it will work for you, but for me the solution was this simple.

open up Settings then navigate to Accessibility then turn off the Power button ends call option.

Hope it helps others out there who had the same problem.

kiyip