I am getting really frustrated. I know there are other threads but I what I do not know is the real solution. I started a new thread because the other thread is marked "Fixed" but the problem still seems to be out there for myself and others.
This is Google Voice which apparently does not use sip so Port Forwarding makes no sense as a solution. If it does, please explain.
A phone is not functional if on half the calls the other caller can't hear me - I have the latest firmware updated within the past month.
I am still within 30 days of my purchase so if I can't resolve this soon I will be initiating a return with Amazon.