Full duplex bluetooth with Iphone?

Yes, same thing here. I tried several headsets and iPhones.

I tried: Nokia BH 602, BH 803, HS 56W, Plantronics Explorer 230. Phones I tried are Nokia N96, Nokia E51, Sony Ericsson k800 and iPhones 3G 8Gb /16Gb. Only on iPhones I have problem with those bluetooths (Other part cannot hear me when we speak at the same time, and volume on the other part is fluctuating and very related to noise in the environment).On my side of the line, volume is allways good. I think this is a same problem as described by Thanar in http://discussions.apple.com/thread.jspa?threadID=1804116&tstart=0

Well, glad to see i am not the only one.
I posted about this issue back in October, and the forum admin removed my post!

I have experimented with this issue many times, and it's always the same result.
If you use your iphone and a BT headset, and the other person is talking, you can't talk over them - because it's only half duplex.
Worse is if you use your iphone with a BT headset and call someone who is driving in their car. The noise from their car occupies the channel, and the only way they can hear you, is if you yell into the headset!

I use my phone for several hours of talktime everyday, and therefore am dependant upon a BT headset (otherwise my arm would fall off).

Because the iphone is essentially un-useable with a headset, I can not use it as a phone!!!

I was praying that Apple would fix the issue with V3.0, but SOL!

I am very surprised that more people do not complain about this. Can we be the only ones to notice the problem? Surely not!

As I am reporting [here|http://discussions.apple.com/thread.jspa?threadID=1804116&tstart=0], my BT530 was working perfectly (full duplex, allright) since I upgraded to OS 3.0 up until yesterday, which returned to normal (half-duplex) operation.

This is definitelly a software issue with the iPhone. All headsets I've tried still work great on other phones.

Please, continue this thread [here|http://discussions.apple.com/thread.jspa?threadID=1804116&tstart=0]