Tandberg Telecom As

Forgent Networks, Inc.

Kevin Bowman

James Lemieux

A video call monitor manager creates a video call monitor engine for initiated video calls between plural video devices with the video call monitor engine having a monitoring thread for each video device of the video call, the monitor threads periodically polling their associated video devices for quality of service and state information to automatically detect quality of service threshold rule violations and state changes for broadcast to interested locations, such as video network administrators monitoring the video call. Each video call monitor engine monitors a video call state with a nested state machine structure of device state machines, device monitor state machines and call segment state machines nested to define a call state machine as a video call is initiated, with the call state machine monitoring the video call throughout its life so that interesting call state changes and quality of service changes are detected and broadcast to monitoring clients.

System and method for active call monitoring

An automated video call graph layout engine accepts video call configuration information and presents a video call graph of the video call to resemble a video network topology. For instance, video call configuration information is accepted in a tree structure that lists video devices of the video call. Video device graph nodes are constructed for each video device, each node having a radius and links to other video devices. Super graph nodes are created by identifying leaf and branch graph nodes and constructing a super graph node for each branch graph node by interconnecting the leaf graph nodes with the branch nodes. A video call graph layout is completed by identifying leaf and branch super nodes and associating leaf super nodes to branch super nodes until all video devices are interconnected.

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Austin, TX, United States of America

Kevin Bowman