Data base communication call processing method
First Claim
1. A method of deriving call routing information from a data base system for a special service call processed by a communication switching systemcharacterized byreceiving at said data base system from said switching system a special service call message including a code dialed by a caller and augmented by a code identifying the originating area of said call,translating said message into a call routing message at said data base system, andtransmitting said routing message from said data base system to said switching system.
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Accused Products
Abstract
A method is disclosed for processing call data among telephone switching offices and a remotely situated data base system for deriving call service information needed to complete special service calls, such as INward WATS (Wide Area Telephone Service) calls to a destination specified by the derived information. A network of local and toll offices compiles a special service call message including a caller dialed 800 number and an originating area code for the INWATS service and then transmits that message to the data base system over CCIS (Common Channel Interoffice Signalling) facilities including signal transfer systems. At the data base, the message is translated into a directory-unlisted number identifying an INWATS customer station designated to serve the call. Before the call is switched through the toll switching network under control of the unlisted number, the open/closed and busy/idle conditions of the INWATS station are checked at the data base to determine the availability of the station to serve the call. Traffic data is accumulated at the data base by originating area code and by the unlisted INWATS number. When the number of calls to the unlisted number per unit time exceeds a threshold, the data base instructs the telephone system to inhibit such calls from being served for a prescribed period.
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Citations
23 Claims
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1. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system from said switching system a special service call message including a code dialed by a caller and augmented by a code identifying the originating area of said call, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system.
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2. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, and further characterized by said call routing message comprising a station number designating a destination station and checking at said data base system the availability of said station to serve said call during said translating of said special service call message into said routing message.
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6. A method of deriving cell routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, and further characterized by said special service call message comprising a code indicating the area in which said special service call originates, and accumulating a count at said data base system of each said special service call and in response to a receipt of the said area code therefor.
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7. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, and further characterized by said routing message comprising a station number designating a destination station, and counting at said data base system the number of calls attempted to said destination station, comparing at said data base system the counted number with a prescribed threshold number, and sending a message from said data base system to said switching system for controlling the subsequent inhibiting of the transmitting of said special service call message from said communication switching system to said data base system for a predetermined time period.
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8. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, wherein said special service call comprises an INWATS call, said special service call message comprises a dialed INWATS number and a code identifying the area in which said INWATS call originates, said translating at said data base system is characterized by converting said INWATS number and area code into a POTS (Plain Old Telephone Service) DDD (Direct Distance Dialing) number identifying a preferred INWATS station to serve said call.
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14. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, characterized in that said communication switching system is equipped with CCIS (Common Channel Interoffice Signaling) facilities including a signal transfer system for signaling communication with CCIS facilities of said data base system and further characterized by receiving at said switching system a special service code dialed by a caller, generating at said switching system a code identifying the area in which said call originates, transmitting said special service call message including said dialed code and originating area code in CCIS message format to said signal transfer system, and routing said CCIS message from said signal transfer system to said data base system.
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23. A method of deriving call routing information from a data base system for a special service call processed by a communication switching system
characterized by receiving at said data base system a special service call message from said switching system, translating said message into a call routing message at said data base system, and transmitting said routing message from said data base system to said switching system, characterized in that said communication switching system is equipped with CCIS (Commom Channel Interoffice Signaling) facilities including a signal transfer system for signaling communication with CCIS facilities of said data base system, and further characterized by receiving at said switching system a special service code dialed by a caller, transmitting said special service call message including said dialed code in CCIS message format to said signal transfer system, routing said CCIS message from said signal transfer system to said data base system, and translating the CCIS message received at said data base system into said routing message including a code identifying a destination for said call.
Specification