Got a BlueAnt S4:
http://goo.gl/gTypEsometime back for about USD 100.
Last evening, had a chance to check it out on a bit of a long drive into the CBD.
It kept acting up, terminating calls when i thought i was accepting them :-( Might have something to do with how one Accepts/Rejects a call: one tap for accept, double-tap for reject.
Even the voice-based "Answer" wasn't helping.
So i was wondering whether there was anything on the SGS side that could simplify matters. Soon, i did this:
Set the Settings | Call settings | All calls | Answering call | Automatic answering to "After 1 second" (Automatic answering will operate only with a connected headset).
After that, it worked like a charm. Now folks are wondering how come i am so fast on the draw: a call gets answered after the first ring ;-)
