Immediately after challenge is selected, a harsh recorded voice yells "Hang up the phone!"
If the caller remains on the line for 2 seconds, a harsher voice yells "Hang up the phone!!"
If the caller remains on the line for 2 more seconds, a buzzer buzzes and the caller is disconnected without passing.
If the caller hangs up before being disconnected, the caller passes.
I don't know how implementable this is, it depends on what kind of control we keep after caller hangup. Currently a challenge has only one outcome, return to dialplan, at which time the caller passes. We would need to return to dialplan after caller hangup (or change implementation, which is not preferable).
Immediately after challenge is selected, a harsh recorded voice yells "Hang up the phone!" If the caller remains on the line for 2 seconds, a harsher voice yells "Hang up the phone!!" If the caller remains on the line for 2 more seconds, a buzzer buzzes and the caller is disconnected without passing. If the caller hangs up before being disconnected, the caller passes.
I don't know how implementable this is, it depends on what kind of control we keep after caller hangup. Currently a challenge has only one outcome, return to dialplan, at which time the caller passes. We would need to return to dialplan after caller hangup (or change implementation, which is not preferable).