Subscriber line radio concentration system with automatic respon

Details Subscriber line radio concentration system with automatic respon Subscriber line radio concentration system with automatic respon

1984-11-26

1986-11-11

Schreyer, Stafford D.

Telephonic communications

Audio message storage, retrieval, or synthesis

361187, 379 22, 379 27, 379333, H04B 346

Patent

active

046224386

ABSTRACT:
In a subscriber line radio concentration system for concentrating a plurality of subscriber terminal stations through radio channels to a master station, at least one of the subscriber terminal stations comprises an automatic response equipment. The automatic response equipment can automatically respond to a continuous ringing signal from the master station, thereby enabling a loop back test to be carried out automatically without the necessity of the attendance at the subscriber station of maintenance or other personnel.

REFERENCES:
patent: 4560842 (1985-12-01), Homer

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