Telephonic communications – Special services – Service trigger
Reexamination Certificate
1997-09-18
2001-09-11
Matar, Ahmad (Department: 2642)
Telephonic communications
Special services
Service trigger
C379S220010, C379S229000, C379S230000, C379S221010
Reexamination Certificate
active
06289091
ABSTRACT:
TECHNICAL FIELD
The invention concerns a method of making changes in a directory number administration whereby the directory number administration manages the assignment of a quantity of subscriber stations to call numbers, a change order is entered into the directory number administration to make a change in this assignment, and the execution of the change order makes the change in the directory number administration. It is also directed to a method of providing a directory number administration service whereby the directory number administration service manages the assignment of all the subscriber stations of one or several communications networks to call numbers, and a change is made in this assignment by executing a change order in the directory number administration service. The invention is still further directed to a directory number administration facility with a first data bank for managing the assignment of a quantity of subscriber stations to call numbers, and with a control unit to make a change in this assignment by executing a change order.
BACKGROUND OF THE INVENTION
The management of numbers is an important task in the operation of communications networks. It includes managing the assignment of subscriber stations to call numbers, i.e. managing the addressing of subscriber terminals in communications networks.
The article “System 12, Operation and Maintenance” by E. Bertoli et al., Electrical Communications Volume 56, number 23, 1981, pages 184 to 197 describes the realization of a directory number administration for a part of a telephone network. The invention starts with this realization of a directory number administration.
The assignment of call numbers to the subscriber stations of one or several exchanges is controlled by a central operation and maintenance system. This assignment is changed by blocking and releasing subscriber station lines and by changing the routing guidance tables of the exchanges. The implementation of such a change is brought about by personnel of the operation and maintenance center with the input of a corresponding change order.
The execution of such changes is a management task for the network operator and involves high safety requirements. For that reason such a change order can only be entered by predetermined personnel of the operation and maintenance center and the personnel must be identified with passwords.
Problems occur with this type of changes in the assignment of call numbers if installers must perform local work in the respective subscriber station before the change is made.
This is particularly the case in a deregulated subscriber station area in which the subscriber networks of two or more network operators share the subscriber station area and thereby also the numbering range of the subscriber area. If a subscriber changes from one network operator to another, an installer must reconnect the subscriber's terminal from one station in the subscriber network of one network operator to a station of the other network operator. The subscriber cannot be reached during the time between the reconnecting and the input of the change orders by the personnel of the operation and maintenance center of the subscriber networks.
SUMMARY OF THE INVENTION
The invention has the task of introducing a way to make changes in the assignment of call numbers to subscriber stations with a high degree of subscriber reachability.
The task is fulfilled by a method of making changes in a directory number administration whereby the directory number administration manages the assignment of a quantity of subscriber stations to call numbers, a change order is entered into the directory number administration to make a change in this assignment, and the execution of the change order makes the change in the directory number administration, wherein a connection is established between a subscriber terminal and the directory number administration, that a trigger message is sent from the subscriber terminal to the directory number administration via the established connection, and that the reception of the trigger message causes the directory number administration to carry out the change order.
The task is also fulfilled by a method of providing a directory number administration service whereby the directory number administration service manages the assignment of all the subscriber stations of one or several communications networks to call numbers, and a change is made in this assignment by executing a change order in the directory number administration service, wherein to change an assignment a connection is established between a subscriber terminal and the directory number administration service, that a trigger message is sent from the subscriber terminal to the directory number administration via the established connection, and that the reception of the trigger message causes the directory number administration to execute the change order.
The task is further fulfilled by a directory number administration facility with a first data bank for managing the assignment of a quantity of subscriber stations to call numbers, and with a control unit to make a change in this assignment by executing a change order, wherein the control unit has a communications unit for establishing a connection between a subscriber terminal and the directory number administration, and an access device which has a receiver unit for receiving a trigger message from the subscriber terminal via the established connection, and is designed so that upon receiving the trigger message it executes the change order via the control unit.
The basic idea of the invention is to enter a change order in a directory number administration, but the execution of this change order only takes place upon the reception of a trigger message which is sent from a subscriber terminal to the call directory number administration. This uncouples the input of an order, which is safety-critical and must be accurate, from the execution of the order. For example the trigger message is sent to the directory number administration by an installer via a subscriber terminal immediately after reconnecting the subscriber line of a terminal. This enables the execution of the order and thereby allows the change in the switching function to take place immediately after the corresponding change in the physical connection line. This improves the subscriber's reachability.
Another advantage of the invention is that both the time of the input of an order as well as the local reconnection are made flexible by the uncoupling.
The use of this invention is an advantage for the directory number administration in a deregulated subscriber station area, particularly if call number transferability is required.
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“ITT 1240 Digital Exchange Operations and Maintenance” by E. Bertoli et al, Electrical Communication from the Technical Journal, vol. 56, No. 2/3, 1981, pp. 184-197.
Lautenschlager Wolfgang
Stahl Uwe
Alcatel
Deane, Jr. William J.
Matar Ahmad
Ware Fressola Van der Sluys & Adolphson LLP
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