Bluetooth audio quality concerns

I've the same problem with all of you guys... it's very frustrating since I used to use my bluetooth headset a lot before i got this iPhone. I thought iPhone did a really bad job on the bluetooth module even Koren cell doesn't have this problem at all. Here's my phone and headset details:

Phone: iPhone 3G 16Gb White
Headset: itech clip naro 601
Problem: the other party of the phone conversation can barely hear my voice and the voice broken up too.

I, too, have had some major issues with the audio quality of BT headsets on my 3G. I have a black 3G, 16GB, purchased a little under a year ago, and this is the third one I had to go through.

Before I get to the BT issues, I'll start with the corded Apple headset, which may (or may not) be relevant. With the first two 3G phones, whenever I would plug the corded Apple headset in, the party on the other side would hear their voices echo. It would get so severe that the conversation would come to a halt.

I am now experiencing that on the current phone, but I gave up trying to figure it out. No one in the Apple stores had an explanation either. All I know is that once the corded headset is pulled out, and the phone is used normally, the echo goes away.

On to the BT issues...

With this third 3G iPhone, I have gone through EIGHT different Bluetooth headsets. I apologize, but I do not know the model numbers on the following, but it doesn't seem to really matter, as all of them had the same audio quality issues.

Three different Jawbone 2 units, two high-end Plantronics, one lower priced Plantronics, high-end Motorola, mid-range Jabra.

All of which had poor audio quality, with the person on the other end unable to hear me clearly (the most widespread issue), static interference with the phone only two feet away, and various interference throughout the calls.

The Jawbone 2, which so many have raved about, was the biggest headache, but I gave it many chances, exchanging it three different times. The Noise Assassin feature did not work at all. I saw the video demos on their website, but questioned the validity. Then, I spoke with many people who own the Jawbone 2, and they all attested to the functionality of the NA feature.

With my iPhone, sitting in my car, doors and windows closed, with the radio turned up only slightly, the person on the other end of the call could hear everything. The earpiece was sitting perfectly on my face and in my ear, no issues with it slipping or falling out.

Even with the radio turned off, and no noise to interfere with the call, there were complaints of the volume of my voice sounding too low. This is in comparison to someone I just spoke to on the street who was using a Jawbone 2. He said he could be in his car, with his beefed-up stereo system blasting, and his girlfriend on the other end heard him clearly.

Thanar, thank you for setting this thread up. If you say these issues are fixed with the 3.0 update, then I'll be a happy man!

yo compre el bluetooth para mi telefono me costo $ 100 dolares y a la semana estaba con una interferencia en el audio muy fuerte es mas siempre que lo conectaba no se podia escuchar a la otra persona por la interferencia y esto ocorria en cualquier parte donde lo llevabab, ahora el cable que lo cargar tambien tiene problemas, mi respecto yo lo compre por se mac ya que me gusta los de esta marca, pero este equipo verdaderamente no sirve, no se que hacer si lo llevo a una tienda MAC para garantia o echarlo a la basura.
que pena que esta reconocida marca tenga esta producto tan malo

Audio quality is better and they can understand what i say when i talk via bluetooth. But i don't think it is completely resolved, quality still needs a lot of improvement

I have also experienced all these issues from the start.
Spend many hours per day on my phone, and this issue prevents me from using my iphone! As much as I love it in every other way, I simply can not use it as a phone!! Arrrgghhhhh!

3.0 does not solve the problem. Initial testing revealed that it was better, but i still have the same issues.

I spend all my time dialing into conference calls with work colleagues.
I have to be able to speak over them at times, to be able to make a point before they move to another topic, and if any one on the line is talking, they just won't hear me.

3.0 is kind of wierd, when testing with it many callers would complain that i just wasn't clear (as well as the half duplex issue).

For the record, I have some 6 different headsets, and have tried with all of them - no change.

In this day and age for a high-end phone not to have bluetooth headset capability is unbelievable! What is more ridiculous is that they still haven't solved it!

I am preparing a letter to Apple and to my carrier and to European Consumer Center.This is impossible..

Yes, 3.0 does not solve the problem with my iPhone either. Same volume fluctuating, and simplex problem.
People cannot hear me well, and I must switch from bluetooth to Iphone often.
Also tried several headsets, and other IPhones.

I have the same issue (tried four differend BT headsets including Apples own BT headset). I'm using iPhone 3G with OS 3.0 at the moment. Did not make any difference for me...

Any idea if 3Gs have the same problem? It would be nice if someone could confirm this...

Thanks.