VoIP gateway system connected through extension subscriber circuit of private branch exchange
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 8, 2003
app pub date -
May 24, 2002
filing date -
Nov 2, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A VoIP gateway system connected through an extension subscriber circuit of a private branch exchange is provided, which includes a switching unit connected to extension terminals of the extension subscriber circuit of the private branch exchange, the switching unit finding an idle extension line of extension lines of the extension subscriber circuits to perform automatic connection; a voice CODEC connected to the switching unit, to perform modulation and demodulation between a voice signal and a digital signal; a LAN connection part connected to the voice CODEC; and a controller connected with the switching unit, voice CODEC and LAN connection part, for providing control signals for outgoing- and incoming-call operations.
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