Universal/assigned night answering system for EPABX

Details Universal/assigned night answering system for EPABX Universal/assigned night answering system for EPABX

1975-11-28

1977-06-07

Cooper, William C.

H04M 358

Patent

active

040284999

ABSTRACT:
Universal/Assigned Night Answering system incorporated in an EPABX system permits any telephone station to answer a universal incoming call or an associated assigned incoming call from incoming trunk line while retaining the ability to initiate calls to other telephone stations within the EPABX system or to outgoing trunk lines. A UNA/ANA module is provided using a standard half-register for UNA operation and circuitry for ANA, the module also being coupled to the common control line and having its own vertical line in the switching matrix.

REFERENCES:
patent: 3449527 (1969-06-01), Strobelt et al.
patent: 3459897 (1969-08-01), Terasaka
patent: 3636267 (1972-01-01), Fritz et al.
patent: 3836723 (1974-09-01), Ohara et al.
patent: 3867581 (1975-02-01), Pommerening

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