Method of and system for remote testing of integrated services d

Details Method of and system for remote testing of integrated services d Method of and system for remote testing of integrated services d

1989-08-15

1991-03-05

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 13, 371 201, H04J 116, H04J 314

Patent

active

049982400

ABSTRACT:
In an integrated services digital network (ISDN), a selected customer ISDN line at a central office is tested by remote control from an ISDN testing facility so that it is unnecessary to dispatch service personnel to the office to carry out the test. At last D-channel data from the ISDN line to be tested is obtained from the standard U-interface bus, accessed at the central office using the line card sparing feature of a standard integrated services line unit (ISLU). The D-channel data is applied to a personal computer at the central office, programmed to carry out protocol analysis. Another computer at the ISDN test facility controls the operation of the computer at the central office over a dedicated communication line.

REFERENCES:
patent: 4611320 (1986-09-01), Southard
patent: 4730313 (1988-03-01), Stephenson et al.
patent: 4910729 (1990-03-01), Coffelt et al.
patent: 4922482 (1990-05-01), Tanahashi et al.

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