Circuit arrangement for providing internet connectivity to a computer in a key telephone system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 23, 1999
Grant Date -
N/A
app pub date -
May 23, 1997
filing date -
May 23, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit arrangement is provided for connecting a personal computer (PC) to a port of a key telephone system via an adapter circuit which also interfaces a digital key set to the port. The adapter circuit is connected to the computer via an RS-232 single channel data link. The PC is programmed to generate and receive a serial data stream into which are encapsulated messages relating to link control and telephone functionality. The adapter circuit is also programmed to receive and generate the serial data stream. The data rate through the adapter circuit and the telephone system and hence to a remote computer is dependent on the utilization of the attached key set by the user to make a call.
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