Patent EP0493896A2 successfully refreshed from Google Patents.
EP0493896A2
Expired / Lapsed
EP
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Method and circuitry for routing a call
Assignee: AT&T Inc
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Filing: 1991-12-05
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Granted: —
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Expires: 2011-12-05
Abstract
Abstract A network routing method and structural embodiment wherein a call is routed from a calling station (110) to a desired called destination (115) among a plurality of destinations reachable by a number dialed from the calling station, and wherein that routing illustratively is through a digital link splicer circuit (135) selected on the basis of the dialed number, and the desired destination is selected by a data base system (140,145) that retrieves a number of the desired destination based solely on the telephone number of the calling station.
Inventors
- 👤 Craig Alan Reading
- 👤 David Lee Sprague
- 👤 Lance Wayne Wilson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:46
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0016; H04Q3/0029; H04Q2213/00; H04Q2213/1313; H04Q2213/13541; H04Q2213/13547
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A method of routing a telephone call from a calling station connected to a communication network to a desired destination comprising routing said call via said network to an intermediate node, and retrieving a telephone number of said destination from said intermediate node, characterized in that said routing comprises routing to an intermediate node using a number dialed by said calling station; and said retrieving comprises said intermediate node being responsive solely to a receipt of the calling station number for deriving said number of said destination.
Claim 2
Dependent Claim
82 words
A method according to claim 1, wherein said intermediate node comprises a digital link splicer circuit and a database manager, said step of deriving said destination number comprises said splicer circuit receiving the calling station telephone number from said network, said splicer circuit passing said calling station telephone number to said database manager, said database manager performing a search using said calling station telephone number as the key, and said database manager returning said number of said destination to said splicer circuit.
Claim 3
Dependent Claim
35 words
A method according to claim 2 further comprising the steps of after said splicer circuit receives said number of said destination from said database manager, said splicer circuit completing said call to said destination number.
Claim 4
Dependent Claim
26 words
A method according to claim 1 further including the step of said intermediate node initiating a further call to said destination based on said derived number.
Claim 5
Dependent Claim
27 words
A method according to claim 1 further including the step of playing an audio recording to said calling station from said intermediate node before said retrieving step.
Claim 6
Dependent Claim
80 words
An arrangement for routing a call from a calling station to a nearby destination via an intermediate node comprising means responsive to a receipt of a calling station number for deriving a called station number of a nearby destination based solely on said calling station number from a database system, and means operative in response to a derived number for controlling a routing of said call from said calling station via said circuit to said destination nearby said calling station.
Claim 7
Dependent Claim
18 words
An arrangement according to claim 6 further comprising means for interfacing said arrangement to a telephone switching network.
Claim 8
Dependent Claim
48 words
An arrangement according to claim 6 wherein said means responsive to receipt of a calling station number comprises a receiver for receiving a calling station number, means for converting said received calling station number to computer-usable form, means responsive to said converted number for communicating with said database.
Claim 9
Dependent Claim
40 words
An arrangement according to claim 6 wherein said means for controlling a routing of said call comprises means responsive to said database for converting said derived number, and means for initiating a telephone call based on said converted derived number.
Claim 10
Dependent Claim
17 words
An arrangement according to claim 9 further comprising means for connecting said call through said intermediate node.
Claim 11
Independent Claim
107 words
A method of routing a telephone call from a calling station connected to a communication switching network to a desired destination comprising the ordered steps of placing a first call from said calling station, routing said first call through said network to an intermediate node, said intermediate node comprising a database system, based on a number dialed from said calling station, receiving the calling station telephone number from said network, deriving a telephone number from said system based solely on the received calling station number, in response to the derived number, initialing a second call to said desired destination, and connecting said first and said second calls.
Claim 12
Dependent Claim
69 words
A method according to claim 11 wherein said intermediate node comprises a digital link splicer circuit and a database manager, wherein the step of deriving said telephone number comprises said digital link splicer circuit converting said calling station telephone number to computer-usable form, said database manager using said converted number to retrieve said telephone number, and said database manager returning said telephone number to said digital link splicer circuit.
Claim 13
Independent Claim
97 words
A method of routing a telephone call from a calling station connected to a communication network to a desired destination, said network including an intermediate node comprising the steps of routing a first call from said calling station through said network to said circuit, said circuit receiving the calling station telephone number from said network, deriving from a database system the desired destination number based solely on the received calling station number, initiating a second call to said desired destination through said network based on the derived destination number, and thereafter interconnecting said first and second calls.
Claim 14
Dependent Claim
21 words
A method according to claim 13 further including to step of storing information regarding the second calls in said database system.
Claim 15
Independent Claim
170 words
A method of routing a telephone call from a calling station connected to a first local switching office to a desired destination connected to a second local switching office, comprising the ordered steps of placing a first call from said calling station, said first switching office routing said first call through to an access tandem switch, said tandem switch routing said first call to an intermediate node selected using a number dialed by said calling station, said intermediate node receiving the calling station telephone number from said network at a splicer circuit, said splicer circuit communicating the calling station telephone number to a database system, said database system retrieving a telephone number for said desired destination based solely on said calling station telephone number, communicating the number to said circuit, said circuit routing a second call through said tandem switch in response to receipt of said number, connecting said first and second calls and, said tandem switch routing said second call through said second switching office to said desired destination.
Claim 16
Independent Claim
161 words
A method of routing a telephone call from a calling station connected to a first local switching office to a desired destination connected to a second local switching office, comprising the ordered steps of placing a first call from said calling station via said first switching office, said first switching office routing said first call to an intermediate node selected using a number dialed by said calling station, said intermediate node receiving the calling telephone station number from said network at a splicer circuit, said splicer circuit communicating the calling station telephone number to a database system, said database retrieving a telephone number for said desired destination based solely on said calling station telephone number, said database communicating said retrieved number to said circuit, said circuit initiating a second call then said second office in response to receipt of said retrieved number and connecting said first and second calls, and said second office routing said second call to said desired destination.
References Cited (Backward Citations)
No citation records indexed.
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