I want to build a scenario in which if the B-Party hangup the call, A-Party can still be able to process through the dialplan.

This works fine if B-Party hangup the call, but if the B-Party is hanup forcefully via  sched_hangup (timeout), call gets terminated i-e A-Party is not able to reach 'execute_extension' application.

Here is my dialplan snippet 

I have attached as an image as well.

Regards

Bilal Abbasi