We demonstrate the Integrated Testing Environment, ITE, an environment for automated and integrated testing at system level. A companion paper [4] describes the problem of systems integrated testing in its conceptual application modelling focus. Here and in [5], the concept’s implementation is exemplified in case of automated integrated testing of a Computer Telephony Integration (CTI) system. The CTI system consists of a switch, an automatic call distributor, and a suite of applications forming a call center and supporting the tasks of a center’s human agent, e.g., applications that enable an agent to log-on/log-off at the call distributor, or to initiate conference calls with other agents.