Exchanging system and method of establishing data call thereof

Details Exchanging system and method of establishing data call thereof Exchanging system and method of establishing data call thereof

1990-08-17

1994-05-31

Brown, Thomas W.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

370 601, 379221, H04M 706

Patent

active

053176332

ABSTRACT:
An exchanging system in which data is transferred between a plurality of exchange offices connected to a switch network such that data is transferred between files associated with the respective exchange offices. The exchanging system includes a user process for outputting an input/output request to a file of a particular exchange office of a user, an input/output control unit operative in response to the input/output request from the user process for outputting an access request to an exchanging system of another particular communicating exchange office to which the file belongs, and a signal connection unit operative based on the access request for outputting signal connection control information to the particular exchange office to establish a connection to the exchange office to which the particular file belongs.

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patent: 4723272 (1988-02-01), Maat
patent: 4811334 (1989-03-01), Maat
patent: 4811388 (1989-03-01), Westerhof et al.
patent: 4924500 (1990-05-01), Lewis et al.
patent: 5048081 (1991-09-01), Gavaras et al.
patent: 5093827 (1992-03-01), Franklin et al.
Telecommunications Switching Principles, M. T. Hills, The MIT Press, 1989, pp. 155-159.
Digital Telephony, John Bellamy, John Wiley & Sons, 1982, pp. 367-371.
"The Building of Intelligent Networks . . . ", J. Donogue et al., Commutation & transmission, No. 2-1989 (Sotelec, Paris, France), pp. 5-22.

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