I find that often when using my phone for a call, the speaker phone will turn off mid-conversation and go into headset mode. I then have to stop the convo (because I can't hear even when putting it to my ear) and push the 'headset' button where the speaker phone button was.

Any ideas on how to prevent this from happening?

Also, anyone know how to make speaker phone the default for when I pick up or make a call?