Abstract: A communication system that comprises call processors, interworking units, and a control system handles a plurality of calls. The call processors process signaling messages for the calls, and in response, transfer control messages for the calls and transfer data messages for the calls. The interworking units receive the control messages and user communications for the calls and interwork the user communications between a first communication format and a second communication format in response to the control messages. The control system receives and processes the data messages for the calls to maintain an active call database having call data for active ones of the calls. The control system receives a query, and in response, processes the active call database to identify one of the active calls that satisfies the query.

Abstract: A system and method for managing a call processing system includes a signaling interface that receives and processes message parameters and call signaling and transmits and receives call signaling and message parameters to and from a call processor. A call processor processes call signaling to select connections for calls. An interworking unit interworks user communications between time division multiplex (TDM) connections and asynchronous transfer mode (ATM) connections. An ATM matrix connects user communications between ATM connections. A call process control system (CPCS) manages the call processing elements including the signaling interface, the call processor, the interworking unit, and the ATM matrix. The CPCS provides call management applications such as call trace, call tap, remote call control, accounting, configuration of the call processing elements, and interfacing between external devices and the call processing elements.