[8125, K-JAM, P4300, MDA Vario Accessories] dfields:
BT8010

Pascal,

The BT8010 is a bit bigger than the JX10, but it's not that much of an increase. I can still wear it comfortably for conversations or to listen to music. Also, when you're listening to music using both ear pieces, the total weight is not that bad. Much lighter and more comfortable than the Motorola HT820's.

That said, it is a bit trickier to put on. You kind of have to move the earclip out so that you can slide on to your ear (course, i've got big ears...8). I didnt' have to do that with the JX10. It just kinda went in place. Part of this is due to the fact that on the BT8010, the clip is closer to the back of the phone than it is on the JX10. If you look at the pictures in the link you might be able to see what I'm talking about.

It integrates well with the WM5 on the 8125. I've got MS Voice Command 1.6, which now works over bluetooth, and this headset works very well with it..with a couple of catches:

o - The headset has two modes of operation, hands free, and stereo headphones ("music" mode).

o - If you have a WM5 phone, and you don't have A2DP set up, it works great as a headset, possibly better than the JX10. In this case, the headset works in hands free mode only.

o - If you have a WM5 phone, and you have enabled A2DP, then the headset works in both the hands free and stereo headphone mode. And this is where the catch comes in. The headset tends to want to stay in "music" mode, so when you press the button to place a call via Voice Command, it doesn't do anything. You have to press a button on the headset to change modes, before you press the button to place a call. Not that big of a deal really. Sometimes it gets confused though and doesn't work, and I'm sure whether it's the phone or the headset that's getting confused. I think the phone must have something to do with it though in the way that it play's rigtones/accouncements/etc. When this happens I usually turn of the headset and turn it back on. Sometimes I have to either reset the phone or turn bluetooth on the phone off and back on. Also, I've read that other people have seen this behavior also.

o - Another quirk is that with VoiceCommand, it normally asks you to confirm the person you're calling. Sometimes, that confirmation request doesn't get played back over the headset (or via the phone either). Usually what I do when this happens is that I wait about 4-5 seconds after saying the person's name before saying "yes" (course, this means that I might call the wrong person sometime). I *think* this only happens after I've been listening to music via Windows Media player. I'm experimenting to verify this though.

Sometimes you get "skipping" when listening to music, but I hear that's pretty common. You can try lowering the 'bitpool' setting in the registry to help with that.

Battery life is pretty good. Maybe not as good as the JX10. I could go about 5 days on a single charge, but I'm a fairly lite user. Of course, I'm listening to music on this headset, so naturally the charge won't last as long. I will say that I've listened to music for about 3-4 hours in a setting, and the battery level indicator on the headset shows about 50% left.

I haven't use the built in phone book or the "tagged" voice dialing because I have MS Voice Command (you don't have to record tags with it..it really does do voice recognition, and it pretty accurate. I can go to my wife's phone and use her's with no problem without having to train her phone).

As for the caller id, honestly, I've never looked. I'll have to try to look at that in the future to see what it does. I just ran a test though, and it just showed the number, not the name.

Coincidentally, I stopped using the H700 for the same reason you did. Nice headset, but it really annoyed me that I couldn't answer calls. Strangely though, my wife, with the same phone and headset, can answer calls..sometimes. I have no idea why. Apparently this is kinda common cause I've read reports on some Treo websites that have the same problem.

All in all, I'm still pleased with this headset.

Hope this helps some.