Automatic dialer for accessing public network directly of via lo

Details Automatic dialer for accessing public network directly of via lo Automatic dialer for accessing public network directly of via lo

1988-01-25

1989-04-25

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Substation originated

379216, H04M 126

Patent

active

048254630

ABSTRACT:
An automatic dialer is accessible to the public network directly or via a PBX. During registration mode, a controller is responsive to a unique keystroke input to store a binary 1 as a call identifier and a destination terminal number of the public network into a first storage location of a memory or store a binary 0 as a call identifier and a destination terminal number of the PBX into a second storage location of the memory. During call establishment mode, the controller is responsive to a replica of the unique keystroke input to recall data from a different location of the memory. When the dialer is connected to the PBX, the controller dials a network access digit, inserts a pause and dials the recalled destination terminal number if the recalled call identifier is binary 1 or only dials the recalled destination terminal number if the recalled call identifier is binary 0. When the dialer is connected to the PBX, the controller dials the recalled destination terminal number if the recalled call identifier is binary 1 or discards the recalled data if the recalled call identifier is binary 0.

REFERENCES:
patent: 4342882 (1982-08-01), Gravenhorst et al.
patent: 4571463 (1986-02-01), Shefler
patent: 4741029 (1988-04-01), Hase et al.

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