Panasonic - 5.8 Ghz KX-TG5632 Review

I should have returned my Panasonic 5.8 Ghz KX-TG5632 right after I bought it, but I was just too busy.  It has a digital answering machine and 2 handsets with caller ID.  The answering machine works fine, with an on/off button, blinking message light, stop button and erase button.  The signal strength is good, allowing me to move about my house and yard easily while talking on the phone.  The handset has caller ID, a speakerphone button, and a pause/redial button.  the user interface makes it very easy to view and clear caller IDs from received calls.

The main issue I have is that the person on the other end can barely hear me unless I have my phone on speaker phone.  This problem occurred right from the beginning. 

Another issue is that there is no way to mute the ringer when a call is coming in, so I cannot mute the ringing or message being left when I'm talking to someone else on my cell phone.