Unanswered calls in a queue

We are currently using Asterisk Guru Queue Statistics to analyze our inbound calls to our call center. There is one critical data missing about calls that were hang up by the user, ie. Unanswered calls. While the software gives you the numbers, I would like to know how many agents were online at the time and how many were handling a call.

I have been looking through Asterisk CDR data, as well as queue_log files to see if I can correlate this info, but so far I can’t find a solution.

Any suggestions?