Network telephony appliance and system for inter/intranet telephony

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United States of America Patent

PATENT NO 8271660
APP PUB NO 20090290695A1
SERIAL NO

12468707

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Abstract

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A network appliance (100) is provided having a network controller subsystem (110) for coupling the appliance (100) to a data network for providing and receiving data packets to and from a packet data network. A digital signal processing subsystem (120) is coupled to the network controller subsystem (110). A signal conversion subsystem (130) is coupled to the digital signal processing subsystem (120) and a user interface subsystem (160) is coupled to both the signal conversion subsystem (130) and the digital signal processing subsystem (120). The digital signal processing subsystem (120) operates under the control of a computer program which is capable of detecting incoming calls, initiating call sessions, and preferably, implementing advanced telephony features.

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Patent Owner(s)

  • THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schulzrinne, Henning Leonia, US 24 838
Yin, Jianqi Nepean, CA 5 75

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