Communication system supporting remote operations

Details Communication system supporting remote operations Communication system supporting remote operations

1989-02-01

1991-04-09

Brown, Thomas W.

Telephonic communications

Centralized switching system

Switching controlled in response to called station...

379 32, 379201, H04M 342

Patent

active

050070800

ABSTRACT:
A communication system for implementing remote operations between a PABX and a host computer, conforming to Open Systems Interconnect (OSI) communication protocol. Circuitry is provided in each of the PABX and host computer for generating and encoding invoke, return result, error and reject operation protocol data unit signals, for transmission between application layer entities of the PABX and host computer. In order to support invoking of asynchronous telephony operations, invoke address and server address fields are incorporated within the argument sequence and the result sequence of the invoke and return result operation protocol data unit signals, respectively.

REFERENCES:
patent: 4771448 (1988-09-01), Koohgoli et al.
patent: 4782517 (1988-11-01), Bernardis et al.
patent: 4811380 (1989-03-01), Spear
patent: 4833701 (1989-05-01), Comroe et al.
"A New Protocol for Call Handling Functions for the SPC Network", G. Gawdrys et al., IEEE Globecom '82 (Miami, Dec. 1982) Conf. Rec., pp. 735-738.
"Voice/Data Integration: An Applications Perspective", C. Strathmeyer, IEEE Communications Magazine, vol. 25, No. 12, Dec. 1987, pp. 30-35.
"Thinking About the Post-ONA Environment", R. Weindrich, Telephony, Feb. 8, 1988, pp. 32-35.

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