Apparatus and a method for controlling a collect call

Details Apparatus and a method for controlling a collect call Apparatus and a method for controlling a collect call

1995-11-08

1998-02-17

Kuntz, Curtis

Telephonic communications

With usage measurement

Call charge metering or monitoring

379111, 379229, 379231, 379121, H04M 1500

Patent

active

057199272

ABSTRACT:
A collect call control device in a telephone exchange system in which a call signal for the collect call is sent from an international switching center through a central office exchange and a private branch exchange to a called subscriber, the private branch exchange has an attendant's switchboard connected and the attendant's switchboard has an attendant's telephone connected. The collect call control device detects whether the collect call request is indicated in a call signal which is input to the central office exchange from the international switching center and includes information on the collect call request and a called subscriber's telephone number; determines whether to control the collect call to the called subscriber based on the detection; generates an attendant's telephone number based on the determination; and connects the call signal to the attendant's telephone.

REFERENCES:
patent: 5303298 (1994-04-01), Morganstein et al.
patent: 5339356 (1994-08-01), Ishii
patent: 5347574 (1994-09-01), Morganstein
patent: 5392343 (1995-02-01), Davitt et al.
patent: 5422943 (1995-06-01), Cooney et al.
patent: 5506894 (1996-04-01), Billings et al.
patent: 5533109 (1996-07-01), Baker

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