Cisco Technology, Inc.

Wing-Kuen Chung

Cherng-Daw Hwang

Michael Edric Tasker

Dihong Tian

Qing Chen

Patrik Buckingham

Christine Yu

A controller controls a camera that produces a sequence of images and that has output coupled to a video encoder. The camera has an operating condition including a field of view and lighting, and one or more imaging parameters. The video encoder encodes images from the camera into codewords. The controller receives one or more encoding properties from the video encoder, and causes adjusting one or more of the imaging parameters based on at least one of the received encoding properties, such that the camera produces additional images of the sequence of images for the video encoder using the adjusted one or more imaging parameters.

Encoder-supervised imaging for video cameras

A Multiservice Access Concentrator (MAC) provides a time limit for a first ringing voltage signal in response to an attempted call. The call is attempted via a voice over packet-data-network system (VOPS), wherein the VOPS comprises voice over Internet Protocol (IP), voice over Frame Relay, voice over Asynchronous Transfer Mode (ATM), and voice over High-level Data Link Control (HDLC) network systems. Generation of the first ringing voltage signal is terminated upon expiration of the time limit. A control message is transmitted to terminate the attempted call, wherein the control message is transmitted via the VOPS.

Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS)

A method is described that comprises receiving a ringing voltage or tip-ground signal at a first telephone interface. Then, indicating to a control system at an interface that the ringing voltage or tip-ground signal is appearing at the first telephone interface. Then, calling a remote device over a packet data network while maintaining the first telephone interface in an on-hook state. The control system causes the calling in response to the indicating.

Method and apparatus for providing forwarding on ring-no-answer for remote telephone extensions using voice over packet-data-network systems (VOPS)

A method for selecting a transmission protocol for a voice over packet system (VOPS) is disclosed. The method comprises generating a first data comprising a plurality of transmission protocols. The method also comprises transmitting the first data to a remote VOPS. Additionally, the method comprises receiving a second data from the remote VOPS. The second data selects at least one of the plurality of transmission protocols.

Voice over packet system configured to connect different facsimile transmission protocols

A Multiservice Access Concentrator (MAC) receives a called number and matches the number against a destination-pattern index. A logical group of single access telephone numbers are associated to at least one voice port, wherein a logical group of candidate voice ports are formed. The logical group of candidate voice ports are sorted to form a sorted table. The sorting comprises using a prioritized sort criteria, wherein the sort criteria comprises sorting by explicit preference, longest telephone number match metric, local voice ports taking priority over network voice ports, administrative metrics of the network voice ports, time-of-last-use timestamp, and predefined order. Hunting for a voice port among a logical group of candidate voice ports is performed, wherein the logical group of candidate voice ports is distributed across at least one voice over packet-data-network system (VOPS). The VOPS comprises voice over Internet Protocol (IP) network systems, voice over Frame Relay network systems, voice over Asynchronous Transfer Mode (ATM) network systems, and voice over High-level Data Link Control (HDLC) network systems, but the embodiment is not so limited. Ringing of a telephone extension coupled to the voice port is performed.

Method and apparatus for voice port hunting of remote telephone extensions using voice over packet-data-network systems (VOPS)

A Multiservice Access Concentrator (MAC) establishes a representation among at least one signal processing device and multiple logical channels. The signal processing devices comprise digital signal processors (DSPs). The logical channels are placed into a first resource pool. At least one logical channel is moved among at least one other resource pool in response to a request to process at least one call received over a voice over packet-data-network system (VOPS). The VOPS comprises voice over Internet Protocol (IP) network systems, voice over Frame Relay network systems, voice over Asynchronous Transfer Mode (ATM) network systems, and voice over High-level Data Link Control (HDLC) network systems. The other resource pools comprise a second resource pool and a third resource pool. The second resource pool comprises unused logical channels due to fragmentation of a signal processing device, and the third resource pool comprises active logical channels. The received call is processed using the signal processing device associated with the corresponding logical channel.

Method and apparatus for dynamic allocation of multiple signal processing resources among multiple channels in voice over packet-data-network systems (VOPS)

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Sunnyvale, CA, United States of America

Wing-Kuen Chung