Emergency announcement system

Details Emergency announcement system Emergency announcement system

1977-02-11

1978-04-25

Cooper, William C.

1791753S, H04M 308

Patent

active

040864464

ABSTRACT:
A system is disclosed for providing emergency announcements to telephone subscribers when a group of communication paths is out-of-service. More specifically, one operative communication path extending from a base location to a remote location is connected at the remote location to a plurality of out-of-service or dead communication paths also extending from the base location to the remote location. Emergency announcements are transmitted from the base to remote locations over the selected one good path and applied to the plurality of dead paths. Subscribers are then connected at the remote location to the so-called dead paths to hear emergency announcements.

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