I am using a Jabra 250v with my Ipaq6828, it works fine but there are a few things which I was able to do with my old Ipaq6340 running on WM 2003SE which I could not do now:

1. To channel sounds other than when using the phone through bluetooth earset. In the old operating system there was an option to divert all sounds through the earphone, now no more ? Why ?

2. To use only the connect button on the bluetooth earset to dial the last number without having to touch the Ipaq itself. Now when I press the connect button, nothing happen ? Why ?

I want also to use the bluetooth earset to activate voice commander on the Ipaq, which I guess should be possible, but don't know how.

Could anyone give me some advice ?

It looks like I have found the reason:

On Microsoft website it says that the HP's Ipaq and WM5 has bluetooth compatibility problem.

Here is what is says on Microsoft website:

"HP IPAQ
The audio routing of announcements and the initiation of Voice Command interactions will not work properly on this device due to the Bluetooth implementation."

Link: Voice Command for Windows Mobile 5.0

So if anyone knows a way to go around this issue with IPAQ please share !