Analog access arrangement for a digital telephone office

Details Analog access arrangement for a digital telephone office Analog access arrangement for a digital telephone office

1979-11-09

1981-10-06

Robinson, Thomas A.

179 18B, H04M 342, H04Q 360

Patent

active

042937388

ABSTRACT:
Common digital line circuits are used in a digital telephone office to provide supervisory and digital conversion functions for any subscriber station connected to a digital telephone office. Subscriber stations are connected to specialized analog line circuitry via an analog access network when required.

REFERENCES:
patent: 3714378 (1973-01-01), Kimura et al.

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