Abstract: Embodiments comprise apparatuses and methods allowing interaction with multiple electronic private automatic branch exchange (EPABX) systems. Certain embodiments employ a three layer architecture comprising middleware interposed between a front end comprising a user interface (UI), and a backend comprising a telephone server and the corresponding EPABX system. The middleware performs centralized queuing, administration, and monitoring functions. Requests received from a user via the front end layer may be queued and then dispatched to the telephone server of the appropriate EPABX system, as determined by execution of an algorithm by an engine of the middleware. A notification (e.g. text, email) may be sent to the user regarding a status of the request processed at the EPABX system.