Importance

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Abstract

A communication system controller interconnects a plurality of communication stations with each of the Internet and the public switched telephone network. Each communication station may communicate both real time streaming media frames and non-real time data frames on the Internet. The system controller includes a local area network interface for receiving frames, including both real time streaming media frames and non-real time data frames, from a communication station and a frame buffer for queuing the frames for transmission on the Internet. The system controller also provides for establishing a supplemental PSTN channel to a remote endpoint over the PSTN when the frame buffer has filled above a predetermined capacity. A routing circuit routes at least a portion of the real time streaming media frames to the remote endpoint on the supplemental PSTN channel.

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First Claim