Does anyone know if a dual audio adapter is available for these phones?

I need to plug in my headset (for calls) and my casette adapter (for music) into the phone at the same time (dont like to swap them everytime a call comes in).

Below is a link to a pocketPC version. I emailed PocketPC techs to see if they are gonna build one.


http://www.pocketpctechs.com/Accessories.asp?type=audio

Steve