In a computer-telephony integrated (CTI) contact center, a CTI adjunct (160) enqueues contacts in contact queues (184) of the CTI adjunct, but also causes contacts that are calls (168) to be enqueued as ACD calls in ACD call queues (120) of an ACD system (101), whereby the ACD system and its management information system (MIS 110) provide ACD features to the calls. Similarly, the CTI adjunct enqueues agents in agent queues (185) of the CTI adjunct, but also causes agents (102-104) that have call-handling skills to log into and to be enqueued as ACD agents in ACD agent queues (130) of the ACD system, whereby the ACD system and its MIS provide ACD features to the agents.