A:
To clarify, the BT2 headset DOES support the A2DP protocol. It also supports “multipoint” mode which allows you to have it connected to multiple devices at one time. Unfortunately, any device running iOS 5 will not automatically reroute audio to the headset when the call is ended. The workaround is to turn the headset off and back on, and then manually resume playback on the device itself.
When your phone rings, you will hear it in the headset only and not the phone. The phone would be routing all audio to the BT2 headset.
In addition, the headset is not designed to control any functions of the iPod other than volume.
Thanks for the questions!