JP3313504B2 - Number translation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a number translation method in which one terminal accommodated in an electronic exchange is virtually used as a plurality of terminals.

[0002]

2. Description of the Related Art Conventionally, with the diversification of communication modes, a plurality of telephone numbers such as a work number and a personal number are assigned to one telephone, and this one telephone is virtually operated. Alternatively, a method of selectively using a plurality of telephones according to the application is disclosed in Japanese Patent Application Laid-Open No. 1-223652.
In this method, a translation table is stored in a main storage device of the exchange in which information indicating that the telephone number is the same accommodation position for a plurality of telephone numbers and that the telephone is a virtual multi-phone used for a plurality of purposes is stored. Is provided. Then, the central control unit of the exchange refers to this translation table based on the telephone number of the incoming call, extracts that it is a virtual multi-phone, connects the calling side and the receiving side telephone, and according to the application. In addition, a notification sound corresponding to the telephone number is transmitted when the telephone answers.

[0003]

In this conventional system,
By assigning a plurality of telephone numbers to the same telephone and allowing any one of these telephone numbers to receive a call, the line to which the telephone is connected can be used effectively, but the same telephone number Is assigned to a plurality of different telephones and cannot be received by any of the plurality of telephones, and in creating a numbering plan to be assigned to subscribers according to the purpose of the telephone, avoiding the same telephone number and assigning numbers However, there is a problem that the degree of freedom is limited and inconvenience occurs.

[0004] It is an object of the present invention to provide a number translation method capable of receiving an incoming call to different terminals using the same telephone number and supporting a more flexible telephone number plan according to the application.

[0005]

A number translation method according to the present invention is directed to an exchange of a stored program control type, wherein each of the number identifiers indicates a type of a numbering plan applied to a subscriber accommodated in the exchange. The identification number given to the subscriber based on the plan is compared with the terminal connected to the exchange and corresponding to the identification number, stored in the storage means of the exchange, the attribute identifier is received, and the received attribute identifier is received. Is selected, and accommodating position information of the corresponding terminal is extracted from the selected storage means according to the identification number received following the attribute identifier.

Further, in the number translation method of the present invention, the identification number is stored in a number plan table of a storage device provided for each of the attribute identifiers from a maintenance terminal for maintaining and operating the exchange through a central control unit of the exchange. And the accommodation position information of the terminal corresponding to this identification number is written.Furthermore, for each attribute identifier, the identification number and the accommodation position information of the terminal corresponding to this identification number are written in a ROM in advance, The written information may be input to the storage device through the central control device.

[0007]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an exchange of a stored program control type to which a number translation method according to an embodiment of the present invention is applied. The exchange in FIG. 1 includes subscriber circuits 1a to 1a.
d and a trunk switch 2 for accommodating the trunk 2 and the subscriber circuits 1a to 1d and the trunk 2
And a central control unit 4 for controlling the communication path switch 3;
It has a storage device 5 to which data is written and read out by the central control device 4, and a maintenance terminal 6 for maintenance and operation of the exchange.

[0009] The central control unit 4 performs a CCITT recommendation Q. 4 generated by a calling terminal by dialing by a calling subscriber. 9
A connection control unit 41 that receives a SET UP message (hereinafter abbreviated as a message) in a circuit-switched call specified in 31 and connects the corresponding lines of the communication path switch 3 based on the translation information; A call control unit for identifying the call type based on the received information and transferring number information to obtain translation information; and a translation control unit 43 for extracting accommodation position information corresponding to the number information of the terminating terminal. The apparatus 5 includes, for each attribute identifier indicating the type of the numbering plan applied to the subscriber accommodated in the exchange, an identification number (corresponding to a telephone number) assigned to the subscriber based on the numbering plan and the exchange. Number storage table 51 for storing a terminal connected to a terminal and corresponding to the identification number
To 53. Terminals A to D are connected to the subscriber circuits 1a to 1d.
Are respectively connected.

[0010] The message including the number information of the subscriber is:
For example, it is configured to include a 2-byte attribute identifier and a 4-byte identification number. As this message, in the case of a local call, the information of “attribute identifier + identification number” dialed by the calling subscriber is received by the connection control unit 41 via the subscriber circuit, and the incoming call from the partner station is received. In this case, a message similar to that described above is generated at the partner station, and the connection control unit 41 receives this message via an interoffice trunk line (not shown) and the trunk 2.

FIG. 2 is a diagram showing an example of registration of the numbering plan table in FIG. 1. For each attribute identifier, an identification number, accommodation position information of the terminal corresponding to this identification number (in FIG. 2, the terminal name is displayed), and Are stored in contrast. In FIG. 2, for example, when the attribute identifier is “01”, the identification number “2000” corresponds to the terminal C, but has the same identification number “2”.
Even if the attribute identifier is "02" even for "000", it corresponds to the terminal D. These attribute identifiers are used properly according to uses, such as, for example, employee numbers, affiliation section numbers, and circle member numbers in the company, and correspond to respective numbering plan tables. FIG. 2 illustrates a case where a two-digit number is given as an attribute identifier, but the number of digits can be increased or decreased according to the number of uses.

The identification numbers and the terminal location information corresponding to the identification numbers are input for each attribute identifier through the central control unit 4 by operation input from the maintenance terminal 6. Also,
It is also possible to write these information in the ROM by a ROM writer in advance, and read the written information by the central control unit 4 and input it into the storage device 5. This method is used particularly when the numbering plan is largely changed. Thus, the registration operation can be performed efficiently.

The operation will be described below.

FIG. 3 is a flowchart showing the flow of the registration operation of the number plan table according to one embodiment of the present invention. First, when a maintenance person dials a special number (special number) for registering a numbering plan table using the maintenance terminal 6, the call control unit 42 of the central control device 4 receives the dialed number (step 1; S).
1) When this special number is confirmed, the number plan table is sent to the maintenance terminal 6 to display the subscriber's identification number and an input permission signal for permitting the input of the accommodation location information of the terminal corresponding to this identification number (FIG. 4). S2). The maintenance person checks this display,
When the first attribute identifier of the input data is input, the call control unit 42 receives and outputs this (S3), and the translation control unit 43
Receives this, selects a numbering plan table corresponding to this attribute identifier, and collectively registers the identification number, which is the subsequently received registration information, and the accommodation position information of the terminal corresponding thereto in the free memory area ( S4).

When the registration is completed, the call control unit 42 sends a registration completion signal to the maintenance terminal 6 and displays the signal (S5). , The next attribute identifier is input. If there is no information to be registered, no attribute identifier is input. The call control unit 42 determines whether or not there is the next attribute identifier (S6). If there is, the process returns to S3; otherwise, the process ends. In the case of registration correction, a special number predetermined for this correction operation is received, and the corresponding information is corrected by the same operation as described above.

FIG. 4 is a flow chart showing the flow of processing of the number translation method according to one embodiment of the present invention. First, when the connection control unit 41 receives a message output from the calling terminal (S11), the connection control unit 41 notifies the call control unit 42 of the attribute identifier and the identification number in the message. The call control unit 42 transfers the received attribute identifier and identification number to the translation control unit 43 in order to obtain the accommodation position information of the terminal on the receiving side to be connected (S12). The translation control unit 43
The corresponding number plan table is selected by the attribute identifier (S
13) Then, on the selected number plan table, the accommodation position information of the terminal corresponding to the received identification number is extracted (S14), and this information is notified to the connection control unit 41 through the call control unit 42. (S15). Connection control unit 41
Connects the transmitting side and the receiving side based on the receiving side location information recognized from the source number of the call in the message and the receiving side terminal location information received from the translation control unit 43 (S16). ).

FIG. 5 is a diagram showing the types of connection patterns for specifically explaining the operation of one embodiment of the present invention. In pattern 1, a pattern is transmitted from terminal A to terminal C by using an attribute identifier "01". 2 illustrates an example in which an attribute identifier “02” is used to make an incoming call from another station (the other station) to the terminal D, and a pattern 3 uses the attribute identifier “03” to make an incoming call from the terminal B to the terminal C.

FIG. 6 is a flowchart showing the flow of the processing of pattern 1 of FIG. 5 in one embodiment of the present invention (the flowcharts of patterns 2 and 3 are not shown).

In the pattern 1, when the connection control unit 41 receives the message “012000” output from the terminal A on the calling side (S21), the connection control unit 41 sets “0” in this message.
"1" as an attribute identifier and "2000" as an identification number to the call control unit 42. The call control unit 42 transfers the received information to the translation control unit (S22), and the translation control unit 43 selects the numbering plan table 51 based on the attribute identifier "01" (S23). The translation control unit 43 extracts the accommodation position information of the terminal corresponding to the identification number “2000” from the selected number plan table 51 (S24), and notifies the connection control unit 41 of this information through the call control unit 42. (S2
5). The connection control unit 41 connects the terminal A on the transmitting side and the terminal C on the receiving side through the communication path switch 3 (S26).

In the pattern 2, a message "022000" is received from the partner station and processed according to the same procedure as described above. In this case, a different number from the pattern 1 is obtained from the attribute identifier "02". The plan table 52 is selected, and the accommodation position information of the terminal D is extracted from the identification number “2000”. As described above, even if the same identification number is used, it is possible to make an incoming call to a different terminal.

In the pattern 3, the message "034000" is received from the terminal B and processed according to the same procedure as described in the pattern 1. In this case, the pattern "1" is transmitted from the attribute identifier "03". , 2 are selected, and the accommodation position information of the terminal C is extracted from the identification number “4000”. That is, even if different identification numbers are used, it is possible to make an incoming call to the same terminal.

[0022]

As described above, according to the present invention, for each attribute identifier indicating the type of the numbering plan applied to the subscriber, the identification number assigned to the subscriber based on this numbering plan and the identification number By storing the terminal corresponding to the number in comparison with the terminal and extracting the accommodating position information of the corresponding terminal by these attribute identifiers and identification numbers, it is possible to receive calls to different terminals using the same identification number. In addition, each terminal can be made to correspond to a more flexible numbering plan according to the application.

Also, for each attribute identifier, the identification number and the terminal location information corresponding to the identification number are written in a ROM in advance, and the information in the ROM is transferred from the maintenance terminal to the storage device of the exchange through the central control unit of the exchange. By inputting, when a new number is assigned to all subscribers, or when there are many changes or additions of numbers, the numbers can be registered more efficiently.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an exchange of a stored program control type to which a number translation method according to an embodiment of the present invention is applied.

FIG. 2 is a diagram showing a registration example of a numbering plan table in FIG. 1;

FIG. 3 is a flowchart illustrating a flow of a registration operation of a number plan table according to an embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of processing of a number translation method according to one embodiment of the present invention.

FIG. 5 is a diagram showing types of connection patterns for specifically explaining the operation of one embodiment of the present invention.

FIG. 6 is a flowchart showing a flow of processing of pattern 1 in FIG. 5 in one embodiment of the present invention.

[Explanation of symbols]

 1a-1d Subscriber circuit 2 Trunk 3 Call path switch 4 Central control unit 5 Storage device 6 Maintenance terminal 41 Connection control unit 42 Call control unit 43 Translation control unit 51-53 Number plan table

Claims (3)

(57) [Claims] An identification number assigned to a subscriber based on said numbering plan for each attribute identifier indicating a type of a numbering plan applied to a subscriber accommodated in said switching equipment. And a terminal connected to the exchange and corresponding to the identification number stored in the storage means of the exchange, receiving the attribute identifier, selecting the storage means corresponding to the received attribute identifier, selecting the attribute A number translation method, comprising extracting accommodating location information of a corresponding terminal from the selected storage unit based on the identification number received following an identifier. 2. The identification number and a terminal corresponding to the identification number in a number plan table of a storage device provided for each of the attribute identifiers from a maintenance terminal for maintaining and operating the exchange through a central control unit of the exchange. 2. The number translation method according to claim 1, further comprising the step of: 3. For each attribute identifier, the identification number and terminal location information corresponding to the identification number are written in a ROM in advance, and the written information is input to the storage device through the central control unit. 3. The number translation method according to claim 1, wherein the number translation is performed.