Method for prohibiting continual routing of a call between central office switches due to translation data error
First Claim
1. In a telecommunications system comprising a plurality of central office switches, wherein a given directory number has been ported from a first of the plurality of switches to a second of the plurality of switches, a method for detecting translation data errors in the second switch comprise the steps of:
- receiving a call directed to the ported directory number in the second switch;
the second switch retrieving translation data to connect the call to a customer line served by the second switch;
determining whether the call can be connected to a customer line served by the second switch;
storing a translation data error (TDE) indicator associated with the ported directory number in the second switch responsive to the determination that the call cannot be connected to a customer line served by the second switch;
extending the call to the first switch; and
completing any subsequent calls directed to the ported directory number in the second switch in response to the presence of the TDE indicator.
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0 Petitions
Accused Products
Abstract
A method for detecting translation data error in a central office switch comprises: receiving a call directed to a ported directory number in a switch; retrieving translation data from the switch memory to connect the call to a customer line; and determining that the call cannot be completed to a customer line served by the switch. Upon determining that the call cannot be connected to a customer line served by the switch, a translation data error (TDE) indicator is set in the switch memory so that the instant call, and all subsequent calls directed to the same ported directory number, are connected to an announcement circuit. An translation data error message is also sent to a central switch maintenance and control center by the switch.
51 Citations
15 Claims
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1. In a telecommunications system comprising a plurality of central office switches, wherein a given directory number has been ported from a first of the plurality of switches to a second of the plurality of switches, a method for detecting translation data errors in the second switch comprise the steps of:
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receiving a call directed to the ported directory number in the second switch; the second switch retrieving translation data to connect the call to a customer line served by the second switch; determining whether the call can be connected to a customer line served by the second switch; storing a translation data error (TDE) indicator associated with the ported directory number in the second switch responsive to the determination that the call cannot be connected to a customer line served by the second switch; extending the call to the first switch; and completing any subsequent calls directed to the ported directory number in the second switch in response to the presence of the TDE indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In a telecommunications system comprising a plurality of central office switches maintained by a central switch maintenance and control center, a method for identifying translation data error in at least one switch comprises the steps of:
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receiving a call directed to a first directory number in a switch; retrieving translation data stored in the switch to complete the call to a customer line served by the switch; determining that the call cannot be completed to a customer line served by the switch; and the switch sending a translation data error message to the central switch maintenance and control center. - View Dependent Claims (9, 10, 11, 12, 13)
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14. In a telecommunications system comprising a plurality of central office switches wherein each switch maintains a plurality of customer lines and a customer line has been ported from a first switch to a second switch, a method for prohibiting continual routing of a call directed to the transferred customer line between the first switch and the second switch comprises:
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receiving a call in the second switch, wherein the call was received from the first switch over a first inter-switch trunk; the second switch retrieving translation data associated with a directory number of the transferred customer line; the second switch determining that there is translation data error (TDE) associated with the directory number; setting a TDE indicator associated with the directory number in the second switch upon determining that translation data error exists; and connecting the call to an announcement circuit in the second switch upon receiving the call from the first switch over a second inter-switch trunk.
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15. A telecommunications system comprising:
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a first central office switch including a switch module comprising a controller, memory and a first trunk facility; a second central office switch which may be interconnected to the first central office switch via a second trunk facility; means for establishing trunk connections between the first central office switch and the second central office switch via the first trunk facility and the second trunk facility; means for storing translation data in the second central office switch corresponding to a customer line address on the first central office switch; means for setting a translation data error (TDE) indicator in the second central office switch responsive to the identification of translation data error in the second central office switch; and means for forwarding a translation data error message to a switch maintenance and control center from the first central office switch.
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Specification