One of my customers tried to catch any exception with AESC Disconnect by using Try and Catch.
The sample OD application is attached for your reference.

To make sure if this application works as expected, they tried to make the EP port busy by using CTI tool during the call.
With this environment, there was error occurred at AESC Disconnect but the Try-Catch didn't catch it.

The question is what kind of error or exception can be caught or handled within AESC Disconnect?
At least they know that the try-catch can catch the event when AESC is down when the app tried to call AESC Disconnect.
Do we know anything else?

Thanks,

Anyone could comment on my queries please?

Can you include both an app and AESC log? It should be a runtime exception but I need to see your scenario's log to understand what is going on.