A queue management system interfaces with a resource management system and a queuing system in an environment that further includes an interim system. The queue management system comprises an interface to the resource management system for obtaining resource availability data and a management system. The resource availability data represents a resource termination time--and may include the resource termination time or data useful for calculating the resource termination time. The control system: i) obtains a value representing the expected interim system handling time, and ii) makes the interim system available for handling a subject client only if the expected interim system handling time period terminates prior to the resource termination time. The control system transfers the subject client to the queuing system to hold while waiting for connection to a resource for handling upon determining that the resource termination time is scheduled to occur prior to termination of the expected interim system handling time period.