Arrangement for subscriber line ring testing

Details Arrangement for subscriber line ring testing Arrangement for subscriber line ring testing

1983-12-21

1985-10-01

Schreyer, Stafford D.

1791752D, 1791752B, H04M 326

Patent

active

045448094

ABSTRACT:
An arrangement for automatically testing a plurality of subscriber lines, which are operationally connected to an electromechanical switching system is shown. Operational service is to be transferred from the electromechanical switching system to a digital switching system. This arrangement provides for automatically verifying whether the digital switching system is arranged to apply the proper ringing signal to each subscriber by a comparison with that applied by the electromechanical switching system.

REFERENCES:
patent: 4453048 (1984-06-01), Daniels et al.

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