I have always received complaints from people on the receiving end when I use the speaker phone mode.

Issues have been they cannot hear me properly because my voice is breaking up regardless of where I am. I have tested with various signals and locations yet continues happening even with all the bars present. 

Another is they cannot hear me speaking at all while they are speaking.  It’s as if it wants to operate like a walk talkie one person at a time.  Anyone else having these issues ?