OK. So as I understand it the only audio out option for the GO 720 is the built in speaker. If I purchased a Blue Tooth ear receiver could I transfer the call over to the ear receiver by selecting "transfer the call to the telephone option". Or would the 720 and the ear receiver trip over each other once the call comes in? I would like to be notified of the incoming call via the 720 and then listen to it over the ear piece. the internal speaker just doesn't cut it for phone conversations (or much else).