I finally figured what was causing an echo to the person on the other end when I use speakerphone. It's my case!!! I have the hard plastic case with holster that they sell at Verizon Wireless (I am not sure who makes it). As soon as I take the back part of the case off of the phone, the caller no longer hears an echo when they speak. As soon as I put it back on they hear it again. I noticed that this case covers some of the speaker bar, would that cause the issue? Or is there some sort of microphone on the back that I am covering? I am stumped as to why the case would cause this issue. I really like the case and I am not sure if I can even return it anymore. I also would like to know who makes it so I can contact the manufacturer.