Directory number conversion for private directory number plan
First Claim
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1. A telephone number converter comprising:
- a conversion table containing sets of numbers, each set including a public telecommunication number and an associated internal access code, wherein a first subscriber is on a first switching center and a second subscriber is located outside said first switching center, and wherein a first internal access code is associated with said first switching center; and
means for searching said conversion table to find a first public telecommunication number of said first subscriber and for indicating said first internal access code to said second subscriber.
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Abstract
A method extracts an internal access code from the signaling of a connection between a first subscriber on a first switching center and a second subscriber on a second switching center in the public telephone network. The signaling from the first subscriber is converted to the corresponding internal access code of the first subscriber using a conversion table that contains the internal access codes of the corresponding signaling of the subscribers on the first switching center. The internal access code of the first subscriber is then communicated to the second subscriber allowing the second subscriber to call back the first subscriber.
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Citations
20 Claims
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1. A telephone number converter comprising:
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a conversion table containing sets of numbers, each set including a public telecommunication number and an associated internal access code, wherein a first subscriber is on a first switching center and a second subscriber is located outside said first switching center, and wherein a first internal access code is associated with said first switching center; and
means for searching said conversion table to find a first public telecommunication number of said first subscriber and for indicating said first internal access code to said second subscriber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for extracting an internal access code of a first subscriber on a first switching center from signaling sent from said first subscriber to a second subscriber, comprising:
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a conversion table containing an internal access code corresponding to said signaling; and
a computer that converts said signaling to said internal access code in accordance with said conversion table, wherein said second subscriber is in the public telephone network outside of said first switching center. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for extracting an internal access code of a first subscriber on a first switching center from signaling sent from said first subscriber to a second subscriber, comprising:
converting said signaling to said internal access code using a conversion table, wherein said conversion table contains said internal access code in a corresponding relationship to said signaling, and wherein said second subscriber is in the public telephone network outside of said first switching center. - View Dependent Claims (15, 16, 17, 18, 19, 20)
Specification