Help How do I hang up the current call & answer an incoming call without swapping?

[rocketmonkeys]

I'm on a Samung Vibrant with Froyo/2.2. I often get calls while I'm on the phone or leaving a voicemail. I would like to hang up my current call & answer the incoming one. However, I can't - I have the answer the incoming call, then swap back to my original, and hang up on that one. That creates a strange & awkward delay for the new caller, during which some might hang up if they think the call didn't go through.

I can't use the home/menu/back buttons, and I can't access the notifications window. The only things I can do are 1) answer incoming, 2) reject incoming, or 3) reject incoming w/ a txt message. Is there any way to 4) hang up current call & answer incoming? I'd love it if this were an option. I imagine this is something built into the OS itself, but is there an app that can modify this kind of behavior?

Thanks!