I guess I wasn't as clear as I could've been, you certainly explained it
better than I did.

Further, for any headset to work, the phone has to have a headset
profile for whatever interface the headset uses.  In this case, the BT
profile in the phone is the snag, not the headset itself.  I had heard
of the A2DP term before, but I completely forgot about that detail, too.
 Thanks for the tag up.

Hmph... Things you learn on usenet ;-)
My HS820 only beeped with my Moto V551.  The HS820 went throught the
washing machine fairly well, but I never did like it.  It's been sitting in
a drawer for a while.  The outbound audio quality was not good.  I've had
people complain about it, both with the cellphone and paired to the PC for
Skype.  The main reason it took up residence in the drawer is because it
would turn itself on while in my pocket, and I would redial the last
number.

I bought a Motorola H670, with the mini-USB charger to match my V3xx.  The
H670 has a slide button for power, so it is less likely to get truned on
accidentally.  I didn't like the V3xx, so now I have a Nokia 6126.

I just tried now, and the Nokia does play my ringtone through the HS820.
It's actually disconcerting to have it playing from the phone and the
headset.  I'd rather have the headset just give tones.  That might be
configurable.

I also notice that the HS820 wants to beep fairly often if the cellular
signal is lost, which happens as I drive around my fringe area.  That
happened on the V551, and it happesn on the Nokia.  That beep doesn't occur
so often with the H670.

Now I have three headsets with differing chargers and a phone with a fourth
charger.  Mini-usb is on my list of attributes for new devices, but I
missed with the Nokia 6126 and the Jabra BT250.