Scaleable VoIP telephone line circuit
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United States of America Patent
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Nov 30, 2010
Issued Date -
N/A
app pub date -
Dec 11, 2008
filing date -
Dec 17, 2007
priority date (Note) -
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Abstract
A telephone subscriber line device for providing an interface between a legacy telephone circuit based on circuit-switched technology and a packet network has a legacy interface for connection to telephone circuit; a packet interface for connection to a packet network, processing circuitry for converting between legacy telephone signals and packet signals, and a cascadable expansion bus permitting multiple said devices to be connected to a common port on a packet network. Such a device is highly scalable.
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