BB Bold :: 9900 - Headset Not Working Automatically?

I use a corded headset with my blackberry, I have owned a bold 9000 and a Torch and just upgraded to the Bold 9900. I have two headsets, one in my vehicle and one in my office. They both work fine and work with other blackberry's and devices.The problem is when the headset is connected to the blackberry the software does not select this device as the default device for answering or placing calls. This is a real flaw in the programming and is a complete nuance. Every time I place or receive a call I must select the headset manually on the touch screen.All the other blackberry's make the transition automatically. Meaning they all send the call to the headset without any intervention from me. I do not understand how this feature could have been left out if all the previous blackberry's worked just fine.