Discovered this today while on hold with some tech support. I had speakerphone on, waiting for someone to pick up on the other line. When they did, I started talking to them and realized they couldn't hear me. After some troubleshooting it became obvious that my speaker and mic both work perfectly, except when I activate speakrphone during a call, my mic goes mute. Any idea how to fix this? I've been hearing conflicting things about it being a software/hardware issue, but nothing concrete. Not a huge deal as I rarely use speakerphone, but still, I'd like to have the functionality. Thanks in advance!