Method and apparatus for private branch exchange billing

Details Method and apparatus for private branch exchange billing Method and apparatus for private branch exchange billing

1982-06-18

1985-05-14

Schreyer, Stafford D.

179 71TP, H04M 1534

Patent

active

045174113

ABSTRACT:
A method and apparatus for electronically verifying the originating station for calls made from one of a plurality of station lines of a private branch exchange. An electronic memory is utilized to store the telephone number input by a station user at one of said station lines. An audio message is generated which requests that the user enter the identifying number corresponding to that selected station. Automated dial equipment is utilized to access the station corresponding to the identifying number entered by the user and a verification signal is generated if the station corresponding to that identifying number is engaged. An appropriately programmed microprocessor is then utilized to transmit the telephone number stored in memory and to generate and store billing data associated with each station.

REFERENCES:
patent: 4332982 (1982-01-01), Thomas

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