Apparatus for selectively alerting party line subscribers

Details Apparatus for selectively alerting party line subscribers Apparatus for selectively alerting party line subscribers

1985-10-15

1988-02-02

Myracle, Jerry W.

Telephonic communications

Polystation line system

Call alerting

379179, 379177, H04M 1300

Patent

active

047232714

ABSTRACT:
An apparatus is described having the capability to selectively alert subscribers in a telephone party line system where different subscriber parties are alerted using different ringing configurations. Subscribers are identified as being a member of a party by the connection pattern used to interface the apparatus to the telephone party line. The apparatus comprises means for detecting whether a ringer signal received from the telephone line is meant to alert a given subscriber party, and means for coupling the ringer signal to subscriber alerting equipment when an appropriate ringer signal is detected.

REFERENCES:
patent: 4056694 (1977-11-01), Brolin
patent: 4587380 (1986-05-01), Curtin

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