Communication interface to data networks

Details Communication interface to data networks Communication interface to data networks

1998-05-15

2000-11-07

Woo, Stella

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 9306, 379 9307, H04M 1100

Patent

active

061447242

ABSTRACT:
This invention relates to a communications method and device which will allow a telephone connected to the Public Switch Telephone Network (PSTN) through a switching device such as a Private Branch Exchange (PBX) to transfer data between the PSTN and a closed loop digital data network. A network interface microcontroller is installed in an analog or digital telephone connected to a closed loop digital data network. The microcontroller converts the digital network data into a form suitable for transmission through the PBX to the PSTN and converts data received from the PSTN through though PBX into the digital network protocol.

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