Telephone services

Details Telephone services Telephone services

1997-11-03

2000-02-08

Smith, Creighton

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

379219, 379207, H04M 700

Patent

active

060235047

ABSTRACT:
A UIFN toll free service is provided and controlled by control units 11 and 12 that communicate with each other using a separate data networks. The control units arrange the connection of calls on a telephone network. The calls are monitored and billing created for appropriate UIFN customers by the control units. In one embodiment, each call is established by a TNO control unit, as if the customer had initiated the toll free call. Such calls are then treated automatically, especially for billing, as normal IDD calls made by the TNO customer.

REFERENCES:
patent: 5333185 (1994-07-01), Burke et al.
patent: 5550909 (1996-08-01), Chanda et al.
patent: 5661790 (1997-08-01), Hsu

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