Reject incoming call while on waiting If I get a call while I'm busy with another call (call waiting, normal call, not FaceTime), can I reject that incoming call?

I'm using an iPhone 5 running iOS 8.2.

I didn't try anything till now, and I don't want to turn the call waiting off. I want to decide whether to accept or reject the incoming call while I'm on another call.

The screen that appears when I receive another call has only three options:


Hold the current call and ANSWER the coming one
Hang up the current call and ANSWER the coming one
Reply with a message to the caller (of the new call)
none of the options actually allows me to REJECT the incoming new call and keep the current one going
Just press on "send to voicemail" (the middle option) and the call will be rejected.