JPH0458653A - Extension subscriber class changeover system - Google Patents

Abstract

PURPOSE:To attain the quick revision of an extension subscriber class and to prevent illegal revision by changing over the extension subscriber class depending on the dial input by the extension terminal user itself. CONSTITUTION:A central controller 5 allows dial entry of a usual destination subscriber number and dial entry of 'specific number + ID code + destination subscriber number' as dialing operation from an extension subscriber. Upon the receipt of a dial entry in a form of the 'specific number + ID code + destination subscriber number', the controller 5 stores an input data tentatively in an outgoing register memory 10 and a request of tentative changeover of the extension subscriber class is recognized by the translation analysis. Then an individual subroutine is called from a process storage section of a main storage device 6 and a data is set for call class information or the like of the memory 10. Then an ID code analysis processing is executed. Furthermore, the result of the analysis processing represents 'OK', the dial processing to the destination number is capable of being executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an extension subscriber class switching system in an electronic private branch exchange.

[Prior Art] Until now, in electronic private branch exchanges, based on the extension subscriber class (service class) assigned to each extension terminal in advance, each extension telephone can make an international call immediately, call a central office line, or make a dedicated call. Regulations are in place regarding line transmissions, etc.

Changes to preset extension subscriber classes are made possible by key operations on the attendant console or by sending commands from the maintenance console. The switchboard operator) was responsible for the management.

That is, conventionally, the extension subscriber class could not be changed by the extension subscriber himself, but had to be entrusted to a specific person.

[Problems to be Solved by the Invention] In actual operation, even for extension subscribers whose services such as international instant dialing and central office line dialing are regulated by extension subscriber class, it is difficult to temporarily use these services. There are many situations that arise that require this.

However, in the conventional case, when such a situation occurs, it is necessary to contact a specific person to temporarily change the extension subscriber class, and the extension subscriber There was a problem in that it required effort and time to change classes, making it impossible to receive the desired service immediately.

Therefore, solving such problems was considered a future issue, but on the other hand, it was necessary to take care to prevent such extension subscriber classes from being changed unreasonably.
It was becoming difficult to resolve.

The present invention has been made in view of the above-mentioned circumstances, and enables quick temporary change of the extension subscriber class when it becomes necessary to change the extension subscriber class due to circumstances on the subscriber side. An object of the present invention is to provide an extension subscriber class switching method that can prevent unauthorized changes.

[Means for Solving the Problems] In the case of the extension subscriber class switching system according to the present invention, the storage device connected to the central control device of the premises exchange ttAm is capable of storing international instant calls, local line calls, or leased line calls. a call control block table that sets an extension subscriber class, which is identification information for regulating the above-mentioned A service class table is provided in which upper extension subscriber classes are set that allow outgoing services regulated by the original extension subscriber class set in the call control block table.

In the call control in the central control unit, when the subscriber number of the other party is dialed in the normal procedure, the call is made based on the original extension subscriber class set in the call control block table. Regulate processing.

On the other hand, before the subscriber number of the other party is dialed in the normal procedure, information that combines a certain number representing a request for switching the extension subscriber class and the ID code of the extension subscriber is dialed by the extension subscriber. When this happens, it is recognized that a request for temporary switching of the extension subscriber class has been issued, and the dialed ID code is compared with the ID code stored in the terminal information table.

If the dialed ID code exists in the terminal information table, a temporary switching request is issued until the call processing for the dialed party is completed following the switching request. The extension subscriber class of the extension subscriber received is temporarily switched to the class set in the service class table to regulate call processing.

[Operation] Since the extension subscriber class switching method according to the present invention switches the extension subscriber class by the extension terminal user's own dial input, it is necessary to change the extension subscriber class due to circumstances on the extension subscriber side. In this case, it becomes possible to quickly change the extension subscriber class.

Moreover, when changing the extension subscriber class,
Since the D code is verified, unauthorized changes can also be prevented.

Additionally, switching the extension subscriber class by dialing is temporary; once a certain amount of call processing is completed, the extension subscriber class setting will be returned to its original setting without any special input operations. Therefore, inconveniences such as forgetting to reset the class switching do not occur, and unauthorized use by a third party due to forgetting to reset the class switching can be prevented.

Embodiment FIG. 4 shows a schematic configuration of an electronic private branch exchange using an embodiment of the present invention.

This private branch exchange includes a communication path switch (SW) 2 accommodating an extension subscriber 1, a central office line trunk (COT) 3 and a tone trunk (TNT) 4 connected to this SW 2,
A central controller (CC) 5 that controls all sequence control within the private branch exchange, and a main memory (MM) connected to the central controller 5 that stores the program and various data to be executed by the central controller 5. ) 6 and a maintenance console device (MAC) + 2 used for changing data stored in the main storage device 6.

In the case of the extension subscriber switching system according to the embodiment of the present invention, the main storage device 6 includes a terminal information table (TMINF) 7 and a service class table (TMINF) 7, as shown in FIG.
COF) 8 and the central office line TGN determination table (COTGNT
) 9, an origination register memory (ORM) 10, and a call control block table (CCB) 11.

Among the equipment in the main storage device 6, those that are closely related to the embodiment will be explained based on FIG. 3.

As shown in FIG. 3(a), the terminal information table 7 stores an ID code 7a, which is the individual identification information of each extension subscriber, and the extension terminal to which the ID code 7a is assigned is a normal extension. telephones and multifunction telephones.

In addition, the ID code 7a is determined separately for each extension subscriber (that is, each extension terminal to which the ID code 7a is assigned), in addition to the station ID, which is a so-called subscriber number. 0000-9999
(i.e., do not use symbols such as #, etc.).

The call control block table 11 stores information necessary for control during call processing, and specifically, the information shown in FIG.
As shown in b), terminal type 11a, calling tenant number Jlb, extension subscriber class 11c, and DP/PB display +1d indicating whether the selection signal is pulse dialing (DP) or tone dialing (PB). , +D:l-doli
Stores information such as e.

Extension subscriber class l stored in this table 11
lc is identification information (
restriction class) and is set for each extension subscriber.

The service class table 8, as shown in FIG. 3(C), sets an upper extension subscriber class 8a that allows calling services that are restricted in the original extension subscriber class.

The extension subscriber class 8a set in this table 8 is:
It is divided into two classes: ``Super Special A'', which allows restrictions on international immediate calls, etc., and ``Special A'', which does not allow restrictions on international immediate calls, but allows restrictions on local line calls. , "O" is written in the case of "super special armor", and "1" is written in the case of "special armor".

Registration of ID code 7a in terminal information table 7 and extension subscriber class 8 in service class table 8
The settings of a and the like are all performed by operations from the maintenance console device 12.

The outgoing call register memory 10 stores various information necessary when the handset of the telephone serving as an extension terminal is picked up and a call is made (specifically, the information shown in FIG. 3(d) is stored in the call register memory 10. , call type information lOa, number sending counter 10
b, required number of received digits 10c, number of received digits 10d, translation data access act 10e, number sending start pointer 10
f, start digit specification pointer log,) rank group number 10h, LCR/NCC division is flag 10+, NCC
Direct flag 10j, subroutine determination flag 10
k, class switching call display 1Off, and other information is stored.

Here, the class switching call display 1M stored in the memory 10 is a part for recording whether the call is a normal call or a class switch call when a certain extension subscriber makes a call.

Here, the term "normal call" refers to a call that is restricted based on the original extension subscriber class assigned to each extension subscriber in advance, and the term "class switching call" refers to a call that is restricted based on the original extension subscriber class assigned to each extension subscriber in advance. Extension subscriber class 8 in 8
Refers to calls that are subject to call restrictions based on a.

The central control unit 5 determines whether the call is a normal call or a class switching call based on information dialed from an extension terminal for the call.

Note that "0" is written in the case of a normal call, and "B" is written in the case of a class switching call.

Furthermore, in the case of the extension subscriber class switching system according to the embodiment of the present invention, the central control device 5 has the following functions.

First, the central control device 5 not only inputs the usual dialing of the subscriber number of the other party, but also inputs "special number + ID code + subscriber number of the other party" as a calling operation from the extension subscriber.
Allows input of input.

Here, the special number is a fixed number that indicates a request for switching the extension subscriber class, and is a predetermined number or a "*" or "
The symbol ``#'' is used.

Further, [special number+ID code+destination subscriber number J] is allowed to be dialed when the extension is in an empty state (that is, not in use or in the process of making a call).

When the subscriber number of the other party is dialed in the normal procedure on an empty extension, the call is made based on the original extension subscriber class llc set in the call control program 1]. Executes a normal call that regulates processing.

However, when information that combines the above-mentioned special number and the extension subscriber's ID code is dialed before the subscriber number of the other party is dialed in the normal procedure, that is, "special number + ID code 10" is input. When a dial is input in the form of "destination subscriber number", it is recognized that a request for temporary switching of the extension subscriber class has been issued.

In this case, the dialed ID code is compared with the ID code 7a stored in the terminal information table 7.

If the dialed ID code exists in the terminal information table 7, a temporary switching request is made until the call processing for the dialed party is completed following the switching request. A class switching call is executed to restrict call processing by temporarily switching the extension subscriber class of the calling extension subscriber to the "special grade" or "super special grade" class set in the service class table.

After the specified call processing by the temporarily switched extension subscriber class is completed, the extension subscriber class is normally used to make calls, regardless of whether the call ends as a completed call or an incomplete call. Return to the time.

A specific processing procedure in one embodiment when dial input is made in the above-mentioned format of "special number + ID code + destination subscriber number" will be explained based on the flowchart of FIG.

When the extension is empty, it is in a state where dial input for making a call is allowed (step 101), and in this state, when dial input is received in the format of "special number + ID coder destination subscriber number", the dial Step 102): temporarily storing the input data in the transmission register memory 10;
In the translation analysis (DGANL) for that input, it is recognized that a request for temporary switching of the extension subscriber class has been issued.

Then, based on this recognition, an individual subroutine for temporarily switching the extension subscriber class is called to the program storage section of the main storage device 6, and the outgoing register memory IO is called.
Set data in call type information, etc. (step 103)
.

Next, for the ID code dialed, the ID
Execute code analysis processing (IDANL) (Step 1
04).

If the ID code analysis result is rOKJ, an OK event is output and the call process to the dialed destination number can be executed 1- (step 105).
, if the ID code analysis result is "NG", NG
Output the event and disable its transmission (step 1)
06).

The above 11) code analysis process is performed as shown in FIG.

That is, in this ID code analysis process, first, the original extension subscriber class of the extension subscriber who issued the class switching request is [
Step 201) to determine whether or not the value is less than or equal to O-1.
Next, in step 202, it is determined whether the extension terminal of the extension subscriber has registered its ID code or not.
), and further compares the dialed-in ID code with the ID code 7a stored in the terminal information table 7 to see if it matches the dialed-in ID code or exists in the terminal information table 7. It is determined whether the dialed-in ID code is appropriate or not (step 203).

In addition, the original extension subscriber classes given to extension subscribers are "Super Special A", "Special A", "Semi-Special A", "A", "Semi-A", and "Otsu A" in order from the highest rank. ”, etc., and the class “Otsu” is a closed class that can only communicate between extension lines and dedicated lines, and the lower classes below “Otsu” have extremely little need for class switching. be.

If any of the above-mentioned judgment steps 201 to 203 cannot be cleared, the ID)-code analysis processing result becomes r' NG J, and the class switching request is NG.
(step 2o4) of the event setting, and invalidates the class switching request (step 106 in FIG. 1 indicates that the class switching request is invalidated and the original class regulation sound
).

On the other hand, if all of the above-mentioned judgment steps 201 to 203 are cleared 17, the ID code analysis processing result is rOKJ, and based on the information in the terminal information table 7, the central office line TGN
Read the hunt pattern from the decision table 9,
The read information is written in the trunk group number 10h column of the transmission register memory 10 (step 207).

Next, the NCC is set in the translation data access act 10e1 subroutine determination flag 10 of the transmission register memory 10.
Direct flag IOj, LCR/NCC separation is flag IOi, class switching transmission display 107! Necessary data is written in each column of the hat (step 208).

Next, the setting in the extension subscriber class column of call control block table II is switched to the class (“special grade” or “super special grade”) set in service class table 8 (step 209), and the class switching is performed. OK to request
An event is output (step 210), and a call is made to the destination dialed after the ID code (step 105 in Figure 1 is an OK event output, and the dial tone on the station side is activated by the call operation). (CDT).

As detailed above, in the extension subscriber switching method of one embodiment, the extension subscriber class is switched by the extension terminal user's own dial input, so the extension subscriber class may be switched depending on the circumstances of the extension subscriber. When a change in the extension subscriber class becomes necessary, it becomes possible to quickly change the extension subscriber class.

Moreover, when changing the extension subscriber class,
Since the pll of D coat' is performed now, it is also possible to prevent unauthorized changes.

Additionally, switching the extension subscriber class by dialing is temporary; once a certain amount of call processing is completed, the extension subscriber class setting will be returned to its original setting without any special input operations. Therefore, inconveniences such as forgetting to reset the class switch do not occur, and unauthorized use by a third party due to forgetting to reset the class switch, etc., can be prevented.

Note that the number of digits of the ID code is not limited to the above embodiment.

In addition, in the above embodiment, for one extension subscriber,
Although we have decided to assign a single ID code, for example, if multiple users share a single telephone, the user's ID code will be assigned to one extension subscriber number. Give multiple ID codes corresponding to the number,
The extension subscriber class may be temporarily switched for each user.

[Effects of the Invention] As is clear from the above explanation, the extension subscriber class switching method according to the present invention switches the extension subscriber class by the extension terminal user's own dial input. When it becomes necessary to change the extension subscriber class due to circumstances, the extension subscriber class can be changed quickly.

Moreover, when changing the extension subscriber class,
Since the D-code is paid in advance, unauthorized changes can also be prevented.

Additionally, switching the extension subscriber class by dialing is temporary; once a certain amount of call processing is completed, the extension subscriber class setting will be returned to its original setting without any special input operations. Therefore, inconveniences such as forgetting to reset the class switching do not occur, and unauthorized use by a third party due to forgetting to reset the class switching can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing an outline of processing in an embodiment of the present invention;
FIG. 2 is a flowchart showing the details of the main parts of the processing in one embodiment, FIG. 3 is an explanatory diagram of the contents of the storage device in one embodiment, and FIG. 4 is an explanatory diagram of the configuration of a private branch exchange that performs outgoing call processing in one embodiment. It is. 1... Extension subscriber, 2... Call path switch, 3... Office line trunk, 4... Tone trunk, 5... Central control unit. , 6...Main storage device, 7...Terminal information table, 8...
・Service class table, 9... Central line TGN
Decision table, 10... Outgoing register memory,
ll... Call control block table, 12...
...Maintenance console device. Flowchart showing details of main parts of processing in one embodiment - An explanatory diagram of the configuration of a private branch exchange that processes outgoing calls according to an embodiment - An explanatory diagram of the contents of a storage device in an embodiment Fig. 3

Claims (1)

[Claims] The storage device connected to the central control device of the private branch exchange includes:
A call control block table that sets the extension subscriber class for each extension subscriber, which is identification information for regulating international direct calls, local line calls, leased line calls, etc., and individual identification information for each extension subscriber. a terminal information table that stores an ID code, and a service class table that sets a higher extension subscriber class that allows outgoing calling services that are regulated by the original extension subscriber class set in the call control block table. In the call control in the central control unit, when the subscriber number of the other party is dialed in the normal procedure, it is based on the original extension subscriber class set in the call control block table. on the other hand, before the subscriber number of the other party is dialed in the normal procedure, a certain number representing a request to switch the extension subscriber class is combined with the ID code of the extension subscriber. When information is dialed in from an extension subscriber, recognizing that a request for temporary switching of the extension subscriber class has been issued, the dialed ID code and the ID stored in the terminal information table are If the dialed ID code exists in the terminal information table, temporary switching is performed until the call processing for the dialed party is completed following the switching request. An extension subscriber class switching method characterized in that call processing is regulated by temporarily switching the extension subscriber class of an extension subscriber who has issued a request to a class set in the service class table.