Electronic private branch exchange having an LCR function and a

Details Electronic private branch exchange having an LCR function and a Electronic private branch exchange having an LCR function and a

1994-07-01

1995-09-19

Dwyer, James L.

Telephonic communications

Plural exchange network or interconnection

Connection call model

379115, 379207, 379216, 379234, 379243, H04M 700, H04M 1500, H04M 342, H04M 300

Patent

active

054523516

ABSTRACT:
A call origination is made through a common carrier of the minimum line cost among a plurality of common carriers on the basis of input dial data. When a particular common carrier number is detected in the input dial data, a call origination is made preferentially through the particular common carrier corresponding to the carrier number. Thus a reduction in the communication cost using an ordinary LCR function is further made. In addition, an access to a desired common carrier is made by a very simple calling operation similar to the ordinary call operation.

REFERENCES:
patent: 4486626 (1984-12-01), Kohler
patent: 4791665 (1988-12-01), Bogart et al.
patent: 5086456 (1992-02-01), Shizawa et al.

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