Thanks Aslam,
I need little in depth,
For example,
If a agent accepts Email interaction at 10:00 and Chat at 10:02 (simuntanous interaction) and the agent closed the Email interaction at 10:05 and Chat interaction at 10:07.
But the agent actively on email from 10:00 to 10:01 (closed this interaction at 10:05) and Chat for 10:02 to 10:07 (at this time the email interaction is in background).
In this case,
whether the total agnet Handling time for this agent = 5 (Email)+5(chat) = 10 mins
or
Considering only actively handled time,
Total agnet handling time = 1 (actively in WDE) + 5 (Actively in WDE) = 6 mins.