Toshiba America Information Systems, Inc.

Michael Thomas Elliott

Jeffrey Wayne Pence

Alexander Dorfman

Hao-Yang Feng

Kelly Khanh Bui

A software architecture for a computer telephony server for simultaneously implementing a plurality of messaging applications is provided. The server includes a processor, a memory and a plurality of slots connected to the processor through a high-speed bus, each of the plurality of slots being adapted to receive an interface card for connecting the server to an external resource. The server further includes a session having a thread of execution on the processor and controlling a subset of the memory and a telephone line resource. The call processing behavior of the session is defined by a first user agent which represent a known user of the server. The first user agent includes a first scenario and a first set of properties. The first scenario includes a plurality of event-application pairs, each pair representing a valid event and a corresponding application that is executed when the valid event is detected. The first set of properties includes fixed properties for customizing standard features of the first user agent and named properties for customizing the behavior of the applications from the first scenario. The first scenario and the first set of properties can be altered during runtime of the server, thereby allowing the call processing behavior of the server to be changed. The software architecture also supports the inheritance of user agent features from a parent user agent to a child user agent such that changes made to the parent user agent are immediately inherited by the child user agent during runtime.

Software architecture for a computer telephony system

A computer telephony server for simultaneously implementing a plurality of messaging applications is provided. The server includes a processor, a memory and a plurality of slots connected to the processor through a high-speed bus, each of the plurality of slots being adapted to receive an interface card for connecting the server to an external resource. A plurality of primary sessions are provided, each of which have a first thread of execution on the processor and control a first subset of the memory and at least one external resource. A plurality of secondary sessions, each corresponding to one of the primary sessions, is also provided. Each secondary session has a second thread of execution on the processor and controls a second subset of the memory. The primary session delegates a set of system resources to its corresponding secondary session and monitors the secondary session's behavior. In addition, the primary session operates to recover the set of system resources delegated to the secondary session upon the termination of the secondary session.

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Mission Viejo, CA, United States of America

Michael Thomas Elliott