get queue wait time

Version 1
    This document was generated from CDN thread

    Created by: Vladimir Banker on 20-08-2009 08:21:18 AM
    Hi!
    When CALL_DELIVERED_EVENT sent it contain the Contact Service Queue ID of the call. I need also call duration of that call - how long was call in queue . The CAD is shows this value.
    Which field contain this information?
    Thanks