It appears that my dongle is Bluetooth 2.0, but it doesn't support HFP. There's a lot of cheap dongles available, but most of them don't list what profiles are supported. Do you know of any specific models that do?
Thats your problem....sounds like you have a very old bluetooth dongle. Since we're now at bluetooth 3.0 and version 1.1 and higher supported HFP I would start by replacing that. Bluetooth 2.0 and 2.1 dongles go for about $1.25 shipped on ebay.
I think i have a similar problem but not sure if its the same. W/ the BT dongle that i have now, my iphone can connect perfectly fine, works perfectly playing audio out to my speakers whether it be using itunes, streaming audio, etc.
The problem is, when I use the phone feature it automatically routes back to teh phopne so all audio sources is coming from there...