Circuit arrangement for providing internet connectivity to a com

Details Circuit arrangement for providing internet connectivity to a com Circuit arrangement for providing internet connectivity to a com

1997-05-23

1999-11-23

Horabik, Michael

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

370264, 370524, 370420, 370468, 379 9309, 379 9314, H04L 1266, H04L 1250, H04L 1228, H04J 316

Patent

active

059912936

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.

REFERENCES:
patent: 5303239 (1994-04-01), Aoki et al.
patent: 5365577 (1994-11-01), Davis et al.
patent: 5838682 (1998-11-01), Dekelbaum et al.
patent: 5841840 (1998-11-01), Smith et al.

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