Telephonic communications – Special services – Service trigger
Patent
1992-05-20
1994-10-04
Dwyer, James L.
Telephonic communications
Special services
Service trigger
379201, 379221, H04M 342
Patent
active
053533399
ABSTRACT:
A unified and automated system for providing, restoring and optimizing special services is continually aware of the state of all the equipment and facilities in the network. The unified system responds automatically to a request for a special service by 1) designing a circuit required to support the requested special service, 2) identifying network facilities and configurations for implementing the designed circuit, 3) assigning those facilities to the circuit, 4) causing the various equipment providing the facilities to be interconnected to implement the service, 5) verifying the integrity of the special service, and 6) delivering the service to the customer. In accordance with an aspect of the invention, if at any point in the process of providing a special service it is determined that there are no available direct transport facilities in the inventory of network facilities at the level required to provide the special service between the particular points in the network that must be interconnected to provide the special service, the system will employ procedures for further identifying or developing transport facilities, in accordance with a predetermined hierarchical plan. The identified or developed transport facilities are delivered, as a unit, as a new inventory facility at the required level. In accordance with an aspect of the invention, if an indirect connection is used at any level, the new inventory unit is marked as a candidate for optimization to be performed in the future. Thereafter the process of providing the special service can proceed as previously described.
REFERENCES:
patent: 3997731 (1976-12-01), Wilmot et al.
patent: 4163124 (1979-07-01), Jolissaint
patent: 4931941 (1990-06-01), Krishnan
patent: 4991204 (1991-02-01), Yamamoto et al.
patent: 5065392 (1991-11-01), Sibbitt et al.
patent: 5065393 (1991-11-01), Sibbitt et al.
Gopal et al., "Routing in a Circuit-Switched Network with Priority Classes", Sep. 1989, IEEE, pp. 792-799.
AT&T Bell Laboratories
Dwyer James L.
Matar Ahmad F.
Rosenthal Eugene J.
Slusky Ronald D.
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