KR910006055B1 - Restriction of currency at exchange - Google Patents

Abstract

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Description

Restriction of currency at exchange

1 is a system diagram applied to the present invention.

2 is a flowchart for creating a memory table for call restriction (allowing and rejecting) according to the present invention.

3 is a flow restriction processing flow chart according to the present invention.

4 is an exemplary view of the allow and deny tables created by the present invention.

The present invention relates to a call restriction method in a key phone and a private exchange, and more particularly, to a call restriction method in which a user can flexibly limit installation of a long distance or international call according to the class of an extension.

In general, the premise of the call restriction is that -S class is available for all calls, -A level is available only for long distance calls, -B class is only for local calls, and -C level is for internal calls only.

The station designation can be entered and modified by the user using MMC, the key programming, but only the numbers beginning with ＂0,0＂ for class A and those beginning with ＂0＂ for class B are limited. . The reason that the MMC can be entered and corrected is that the call restriction program data for the AC level is stored in advance in the memory of the key phone device, and the MMC key is sequentially entered by an accurate and complicated method of the operator. Setting is possible. Therefore, the MMC can make a call with a limited permission level, and the call is not allowed because its level is not allowed.

Therefore, the call restriction method by MMC can be stored in the memory in advance in class and can be designated by the complicated key designation of MMC, so it is not easy for anyone to do it. Since the program is not possible, the program data has to be changed again and stored in accordance with the corresponding code or grade, which is a cumbersome problem.

Accordingly, an object of the present invention is to designate a memory table corresponding to allow and deny and to allow call restriction according to the installed rating data by directly installing a call restriction code on an empty memory of the specified allow / deny table. To provide a way to.

It is another object of the present invention to provide a method for freely restricting intercity and international currencies wherever there is no need to modify the program of the system even if the currency system of the local exchange is changed.

In order to accomplish the above object, the present invention provides a first step of checking whether to receive # key data in a hook-on state and store it in a B class allowance and deny table, and input the permission and deny table for B class in the first step. A second step of checking whether the data to be stored in the allow and deny table of class C when the value is not to be set; In step 3 of checking whether the value is to be entered, and whether the value is to be input to the corresponding level in steps 1 to 3 above, one of n (10) tables is selected and a number from 0 to 9 is inputted. A fourth step of checking a; and a fifth step of setting a range of the number to be input when the number is 0-9 in the fourth step and accepting the # key to finish the process; If the key is input when not inputting numbers up to -9 In the irrelevant condition, all numbers are rejected and allowed, and it is treated as an error when it is not a hold key, and the sixth step is terminated by deleting the numbers and * keys entered in the existing table when the hod key is used.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a system block diagram for carrying out the present invention, which includes a room 11 having programs and fixed service data for performing an exchange function, and not being used for each service class and system mode and program and data processing area. A RAM 20 which temporarily stores the data, a first central processing unit 30 which controls the room 11 and the RAM 20 to DJR access, control call switching, and provide each service; And a main subscriber line card 60 connected to a key phone to which an LCD display device (LCD) is added to transmit four or six wires or signals and data, ring detection, pulse transmission, overvoltage protection, The trunk 50 for compensating for switching signal loss and the interface circuit 40 for smoothly inputting and outputting control data correspond to the main device 100 of the key phone system. A second central processing unit 1 for controlling the unit, displaying ring transmission and various functions, and processing transmission / reception data; and a first interface for transferring power and data of the main subscriber line card 60 of the main device 100; The unit 2, the main subscriber line card 60 of the main device 100, the second interface unit 3 for transmitting voice, and a hook switch for generating hook on and off information; 4) a key matrix 5 connected to the second central processing unit 1 for inputting a dial and a key command, and a light emitting diode (LED) matrix indicating a key input state of the key matrix 5. 6), a handset 8 connected to the second interface unit 3 to make a call, a speaker phone 9 for making a call in a hook-on state, and the second central processing apparatus. Toll ringer 10 generating incoming call signal under control of (1) and dial number extension call The LCD display unit 7 which displays a message of the other party's number, the trunk line number of the trunk line connection, a call pending, a reservation, a call rejection, etc. under the control of the second central processing unit 1 corresponds to the sub-device 200. do.

The system configured as shown in FIG. 1 connects the sub-devices 200, 201, and 202, which are several key-phone phones, to the key phone main device 100, and exchanges data with each other to know the call with the CO line. And a call between the sub-devices 200 and 201, which is a key phone, can be made through the main device 100. Looking at the general functions of the main device 100 and the sub-device 200, the main device 100 detects the incoming signal from the trunk line (L08-L08) and transmits the data of the trunk line call signal to each sub-device 200 do.

At this time, not only to notify the incoming line, but also transmits data to control the various lamps to the subsidiary device 200, and also accepts various key data from the subsidiary device 200, and many other additions such as CO line call, subsidiary device 200 and calls Perform a service of function.

The subsidiary device 200 receives various data from the main device 100 to turn on / off the lamp and control the state. In addition, by checking the pressed key, the input key data is transmitted to the main device 100 to receive the service from the main device 100.

FIG. 2 is a flowchart for creating an allow and deny table for call restriction according to the present invention. A second step of checking whether the data to be stored in the C and C tables are not entered in the allow and deny tables for Class B, and in the C and C tables for Class C in the second step. Step 3 checks whether the value is to be entered into the Class D allowable table when the value is not a value, and selects one of n (10) tables when the value is input to the corresponding level in Steps 1 to 3, and then selects 0. A fourth step of checking whether to input a number up to -9, and a fifth step of setting a range of the number of inputs when inputting the numbers from 0 to 9 and accepting the # key to finish the processing. Step and the fourth step from 0-9 When the * key is input when it is not an input of characters, all numbers are rejected and allowed as an irrelevant condition. If it is not a hold key, it is treated as an error. When the hold key is pressed, the number and * key entered in the existing table are erased. Is done. In the above, the class A is not limited, the class E can talk to the station, and the class D can make the call only in the allowance table of the class D. Classes B and C are set according to the allowable and denied tables.

3 is a flowchart of call restriction processing according to the present invention, which includes a first step of checking whether a subscriber holding a handset is present and an outgoing condition, and a Class A-C when the subscriber holding the handset is outgoing in the first step. The second process of checking whether the subscriber is a class subscriber, and the third process of checking whether any telephone number is not restricted when it is class A in the second process, and is entered in the B and C class rejection and allowance tables in class B and C. And a fourth process of checking whether there is a confirmed number without * being entered when the subscriber's number is entered in the B and C grade rejection tables in the third process, and the number determined in the fourth process is the rejection table. In step 5, if the restriction is for class B and if there is no fixed number in the reject table, for class B checking if it is in the acceptance table, if it is not allowed, dialing with any numeric key is enabled. Checking whether the subscriber's number is in the B and C allowance table when the subscriber's number is not in the B and C rejection table, does not restrict any number; otherwise, the sixth step does not limit the number and any number in the allowance table. In the second step, if the subscriber is not an AC-level subscriber, the permission table of the D-class is taken and if there is no corresponding number, the seventh step is unconditionally rejected.

One embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, and 3, by pressing a program mode key (e.g., # key) in the key metrics 5 as in the process of FIG. 2 (2a). The second central processing apparatus 1 detects this. At this time, the second central processing apparatus 1 inputs the data of the detected key to the main subscriber line card 60 through the first interface 2 and the line 26.

The main subscriber line card 60 inputs input key data to the first central processing unit 30 through the interface 40 circuit, and the first central processing unit 30 executes program key data in step 2a. Judges that has been inputted, and accesses the program display message data from the room 11 by the program key data input.

The accessed message data for display is secondly processed by the first central processing unit 30 through the interface circuit 40, the main subscriber line card 60, the lines 201 and 202, and the first interface 2. Output to device 1. The second central processing apparatus 1 having inputted the display message data is output to the LCD display 7 so that the " PROGRAM " state appears. The user who monitors the message displayed on the LCD display 7 inputs the key codes for permitting and rejecting by the key metrics 5 according to the water supply. Upon receiving the key code, the second central processing apparatus 1 checks whether a value (MMC: 33) to be inputted into the class B rejection table (2b).

When it is not a value to be input into the class B rejection table in step (2b), it is checked whether it is a value (MMC: 34) to be input into the class B permission table in step (2c). When it is not a value to be entered into the class B allowance table in step (2c), it is checked whether it is a value (MMC: 35) to be entered into the rejection table in class C in step (2b).

When it is not a value to be input into the class C rejection table in step (2d), it is checked whether it is a value (MMC: 36) to be input into the class C permission table in step (2c). If it is not the value to be entered in the allowable table of class C in step (2e), check whether it is the value (MMC: 37) to be input into the allowable table of class D in step (20).

If it is not 37 in step (20), the process is terminated, and if it is a value to be input to the table in step (2b) (2c) (2e) (20), it is determined whether one of ten tables is selected in step (2f). Check in the central processing unit (1). That is, the first central processing apparatus 30 determines that one of the grades of rejection and allowance tables is selected in step 2f, and accesses the data in the room 11 to access the second central processing apparatus in the sub-device 200. Enter in (1). According to the MMC code selected by the user, the second central processing apparatus 1 outputs the data to the LCD display 7 (for example, DENY in CLASSXX) (2g) and the number of 0 to 9 in the process. Will wait.

If one of the ten tables is selected, "DBO" is displayed to check the number to be rejected or allowed as in step (2g). The first central processing apparatus 30 also searches for key input. When numbers from 0 to 9 are inputted, search for input of up to 12 numbers in (2h). If a maximum of 12 numbers are input, check that all of them are entered in steps (2i) and (2j). Pressing the end key ＂#＂ saves the entered number in the RAM 20 area. If the maximum number is not 12 in step (2h), wait until the maximum number or wait for the exit key as in step (2i).

If you press ＂*＂ instead of a number in step (2g), it means Don't care, which means that any number is allowed or denied. If the Hold key is pressed instead of the ＂*＂ key in step (2k), the previously entered number is cleared in step (2m). If it is not the Hold key in step 21, it is treated as an error and the key programming is forcibly terminated.

If the above example is described again in detail with reference to the specification of the allow / deny table according to the user's operation,

Class A: No limit

Class B: Restrictions are placed on Class B reject tables, but not on Class B allowed tables. However, if an extended number is entered in the reject table, the limit is allowed even in the allow table.

Class C: same as Class B but different from Class B: E is used.

Class D: Only telephone numbers in the Class D allowance table are allowed.

E class: Only internal calls

TABLE 1

Although not specifically described in FIG. 2, the rating is made by pressing the # key and 30 when the handset is lowered. At this time, the LCD display 7 displays STN TOLL CLASS, and displays the current grade. The user presses a new number of extensions. That is, 0: Class A, 1: Class B, 3: Class D, and Class 4: E, the initial values are all zero. Finally, press #key to specify the extension class. (2b) describes the example of class B rejection table entry, which is a function of entering a telephone number that cannot be dialed by class B. Press the # key while the handset is down and press program code 3 3. At this time, “DENY IN CLASS B” is displayed on the LCD display 7. And in step (2f) and (2g), press one of the numbers 0-9 to select the table location (LOCATION). The current content is B, D, X:… (B: Class B, D: Reject, X: Position).

If you press the limit phone number of up to 12 digits to be checked in the process (2h), it is decided according to 0-9, but * key is irrelevant condition (meaning all digits from 0-9) and the first number is E Press (HOLD KEY) to delete the input. Press # key to complete the class B rejection table entry.

To explain the example of input of the B class allowance table of (2c), it is entered in the B class deny table, but it is a function to input the telephone number to be allowed. Press 된다 ALLOW IN CLASS B ＂on the LCD display (7).

Press one of the numbers 0-9 to select the LOCATION of the table to be checked in step (2h). At this time, the LCD display 7 displays B, B, A, X:... (B: Class B, A: Allowed, X: Position) If you press up to 12 numeric telephone numbers to be allowed, it is determined according to 0-9, but * key is irrelevant condition (all numbers from 0-9 are displayed). E) Hold key: Only numbers entered before the END digit will be accepted. That is, subtract the number of phone numbers.

If you enter E as the first number, the entered contents will be erased. If you press # key, the allowance table entry of B class will be completed. In the same way as above, the class C rejection table input is the same as the class B rejection table entry. 3 to 6, and the D code of the allowable table input is the same method as the allowable table input of the class B, the program code is 3 7.

The example processed in (2b) (2c) (2d) (2e) (20) and stored in the memory is stored as shown in FIG. Accordingly, Class A is allowed and Class B is allowed except for telephone numbers beginning with 0 and 1. However, all numbers beginning with 1800 are allowed, and telephone numbers beginning with 1,0-9,0-9,0-9,8,0,0 are allowed up to 11 numbers. Class C permits all telephone numbers beginning with 1 except that all numbers beginning with 1555 are allowed, and telephone numbers beginning with 1 ** 555 are allowed up to 11 numbers but not 1932. Class D starts with 1800 and only accepts telephone numbers of 11 digits or less. Class E only allows internal calls.

As described above, the key programming (MMC) is completed and the user actually performs a call as shown in FIG. 3, which is a step of searching for the number of numbers to be allowed and the number of numbers to be rejected. In the process (3a), when the subscriber picks up the handset to make a call (Hang off), the second central processing unit 1 detects the hook switch 4 and the main subscriber line card 60 through the first interface unit 2. Is delivered).

At this time, the first central processing apparatus 30 controls the switching network 70 through the main subscriber line card 60 at a predetermined time so that the dial tone is heard. If you want to make a subscriber line call in step (3b), you should check steps (3c), (3e), (3n), and (30). In step (3c), the classes stored in each of the stations in the key programming of FIG. 2 are accessed and accessed in the RAM 20 to compare the grades. If the class A of the subscriber's class is the highest class, any number can dial without restriction, and if the class B subscriber in (3e), the corresponding rejection table of class B is stored in (3f). ), If the subscriber accesses the area and compares with the number dialed by the subscriber, if (3g) has the code 검색 * ＂, or if a fixed number is entered, i.e. * code is entered or only pure numbers are entered. do.

If there is a confirmed number (ex: 1234), the same number in the reject table is unconditionally rejected, even if the same number exists in the class B allowed table (ex: 1243).

If there is no fixed number (ex: 12 * 4) in step (3g), the number in the allowance table (ex: 1234) is compared with the number in the reject table.

In the process (3i), if there are several numbers in the reject table, including ＂*＂ codes, some numbers are the same in the allow table, and it is possible to dial any number instead of ＂*＂ codes. Also, if there is no number entered in the reject table and in the allow table in step (31), dialing of any number is possible.

The process (3n) is used as described above.

In the process (30), only the numbers saved in the allowable table can be dialed to the Class D extension subscribers.

As described above, the user's system program can freely restrict intercity and international currencies in any region, any country, and there is no need to modify the program even if the Toll restristion system of the national exchange is changed. And it is possible to save time, there is an advantage that can easily limit the call without changing the program of all the previously sold system.

Claims (2)

A method for constructing a table for call restriction of an exchange, comprising: a first step (2a, 2b, 2c) of checking whether to receive #key data in a hook-on state and store it in a B-level allow and deny table; A second step (2d, 2e) of checking whether the data to be stored in the allow and deny table of class C when the value is not input to the allow and deny table for class B in 2a, 2b, and 2c; and the second step A third step (20) of checking whether the value to be entered into the D-level allowance table when (2d, 2e) is not a value to be entered into the allow and deny table for the class C and the first to third steps (2a) Step 4 (2f, 2g) checking whether to select a number from 0 to 9 after selecting one of the n tables when the value is to be input to the corresponding level in -2e, 2o), and the fourth step (2f). (2h, 2i) to set the range of the number to be input when the numbers are input from 0 to 9-9 and accept the # key to finish the processing; If the * key is input when step 4 (2f, 2g) is not an input of numbers from 0 to 9, all numbers are rejected and accepted irrespective of the condition and treated as an error when the hold key is not used. And a sixth step (2k, 2n, 2e, -2m) to delete the input number and * key and finish the processing. In the call restriction method of an exchange, a first process (3a, 3b) which checks the presence or absence of an outgoing subscriber with a handset, and the subscriber holding the handset in the first process (3a, 3b) In the second process (3c-3n) to check whether the class A-C subscribers, and when the class A in the second process (3c-3n) is not limited to any phone number, B, C, B, C In the third process (3d, 3f-3g) to check whether the class has been entered into the rejection and allowance table, and the subscriber's number is entered in the B, C class rejection table in the third process (3d, 3f, 3g) Step 4 (3g) checking if there is a confirmed number without * entered, and when the number determined in step 4 (3g) is in the reject table, it is restricted to class B and the number confirmed in the reject table. If no, check to see if it is in the permission table. If the subscriber's number is in the B and C rejection table in the third (3h, 3i, 3e) and the third process (2d, 2f, 3g), the number is restricted. If not, if there is no AC class subscriber in the second process (3c, 3m) and the second process (3k, 3m) that does not restrict the number in the allowance table and any number, the D-class imports the allowance table Call restriction method in the exchange, characterized in that the seventh step (3o-3g) to be unconditionally rejected if there is no number.

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