KR100222786B1 - Method for talkingtoll allowance by payment in advence - Google Patents

Abstract

end. FIELD OF THE INVENTION The claimed invention belongs to:

It is a technology to block the call when the amount of call exceeds the preset call rate during external trunk line call after setting the available call amount in the key phone system.

I. The technical problem to be solved by the invention:

After the call in the terminal of the key phone system, you can check their call charges, and limit the call to only the call rate set in advance in order to prevent excessive call charges due to unplanned calls.

All. Summary of the Solution of the Invention:

After registering the usable amount for each station and trunk line, it is possible to calculate the toll rate as the station and the trunk line use the trunk line call and subtract the calculated toll rate from the registered usable amount. If there is no balance, call is limited to the pre-registered call rate.

la. Important uses of the invention:

It is a method of making a semen call in the key phone system.

Description

How to restrict semen calls in keyphone system {METHOD FOR TALKINGTOLL ALLOWANCE BY PAYMENT IN ADVENCE}

The present invention relates to a semen call limiting method in a key phone system, and relates to a semen call limiting method for blocking a call when a preset call rate is exceeded during an external trunk line call in the key phone system.

In general, the key phone system has a function of converting a call charge when displaying an external trunk line call. However, such a function merely checks the details of the call, and when the call is terminated, the call charge is displayed on the display unit of the phone and can be output through the detailed call information. This function can be very useful when you charge a call rate in a hotel or inn. To implement this function, you need to be able to calculate the frequency for long distance calls or international calls. It is possible to calculate the call rate from the frequency and base rate.

However, the call rate display method has the advantage of being able to check his call rate after the call and accurately charge the call, but there is a disadvantage that excessive call charges may be imposed by unplanned calls. In other words, if the external call is not controlled, the call is made irrespective of the call rate, so the burden of work is increased due to excessive calls of the employees in the office, and the burden of the guest is increased in the case of inns.

Accordingly, an object of the present invention is to set a fixed call rate for each CO line group and extension group in the key phone system in order to solve the above problems and limit the fixed call to block the call when the set call rate is exceeded In providing a method.

Another object of the present invention is to provide a semen call restriction method for restricting the excessive use of the trunk line call in the key phone system.

In order to achieve the above object, the present invention registers an available amount for each extension and a trunk line, and then calculates a currency frequency fee according to the extension and trunk line using the trunk line call and calculates the fee from the registered available amount. It is characterized by limiting the use of CO line when there is no available balance by subtracting one frequency charge.

1 is a block diagram of a key phone system according to an embodiment of the present invention;

2 is a control flow chart for registering information for semen call per extension subscriber according to an embodiment of the present invention

3 is a control flow chart for the fixed call limit according to an embodiment of the present invention;

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

1 is a block diagram of a key phone system according to an exemplary embodiment of the present invention, wherein the central processing unit 10 controls a call switching by accessing a predetermined program and controls a trunk line call by various services and a fixed call. The memory unit 12 incorporates the program initial service data for performing calls and various functions, and temporarily stores data generated during program execution. The display unit 14 displays the operation state under the control of the CPU 10. The interface circuit 16 interfaces for data communication between the CPU 10 and each component of the key phone system. The trunk line circuit 18 forms a trunk line loop by scissoring the trunk line in response to the control of the central processing unit 10, and interfacing the incoming signal from the trunk line. The subscriber station circuit 20 supplies the voice current in the voice band to the subscriber's key phone and the general telephone, and performs interfacing between the extension phone and the device. The switching circuit 30 switches various tones and voice data under the control of the CPU 10. The tone supply circuit 22 generates the various tone signals in response to the control of the CPU 10 and provides them to the switching circuit 30. The ring generating circuit 24 supplies a ring signal in the form of a square wave to the switching circuit 30 in response to the control of the CPU 10. The DTMF transmission circuit 26 outputs a DTMF (Dual Tone Multi Frequency) signal under the control of the CPU 10. The DTMF receiving circuit 28 analyzes the DTMF (Dual Tone Multi Frequency) generated from the subscribers of the subscriber station 20 and applies the corresponding digit data to the CPU 10.

Figure 2 is a control flow chart for registering information for fixed call per extension subscriber according to an embodiment of the present invention.

3 is a control flowchart for the fixed call limit according to an embodiment of the present invention.

1 to 3 will be described in detail a preferred embodiment of the present invention.

In order to limit the total currency according to the present invention, information such as the amount available for each extension or national line and the amount according to regional frequency should be registered. Therefore, referring to FIG. 2, in operation 101, the amount of money available for each station, station group, trunk line, and trunk line group is input. When the input of the available amount of money is completed, a change level for adjusting the class of the extension or the trunk line is designated after using the amount of the available amount. For example, if you have used up all of the fares on an extension that was available for long distance calls, you can specify in advance the grade of the extension or trunk that will be changed, whether only local calls are allowed or only internal calls. In step 103, the basic fee according to the frequency of each region is input. Then use the amount available in step 104 and specify whether to sound an alarm before the call is disconnected.

As described above with reference to Figure 3 after registering the information for limiting the semen call to limit the call to the registered semen, in step 201 by lifting the handset of the telephone hook and dialing by dialing When making a call, in step 202, the central processing unit 10 stores, in the buffer, the smaller amount of the available amount of the extension of the current call and the available amount of the trunk line being used as a balance. In step 203, the central processing unit 10 calculates the basic frequency and time of the area where the current call is made and subtracts the telephone fee from the balance stored in the buffer. Here, the call rate calculation is calculated by counting the number of frequency per call provided from the exchange and multiplying it by the basic frequency rate. Then, in step 204, the central processing unit 10 checks that the set time to reach the alarm sound is reached due to the remaining amount of money, and proceeds to step 205 when the time to reach the alarm sound is reached. In step 205, the central processing unit 10 generates an alarm sound, notifies the user that the remaining balance is low, and displays the remaining time on the display unit 14. Then, if the call continues, the central processing unit 10 checks in step 206 whether the available balance is zero and returns to step 203 if it is not zero. However, if the balance reaches zero, the process proceeds to step 207 where the CPU 10 indicates that there is no balance on the display device 14. Then, in step 208, the central processing unit 10 changes to the designated station class if the balance of the station is used, and changes to the designated station class if the balance of the trunk line is used, so that the trunk line call can no longer be made through the station or the trunk line. For example, if there are several extension numbers from 201 to 2XX, and multiple call numbers from 701 to 7XX, extension 201 can be used up to 5000 won, and station 701 can be used up to 6000 won. At this time, if station 201 uses all 5,000 won value through trunk 701, station 201 is changed to class so that no more calls can be made. In addition, the number of the CO line 701 is 5000 won, so the remaining amount is only 1,000 won, so the user can use up to 1000 won when using the CO line through the other extension No. 202 through 701. In this way, after the station or trunk line uses the remaining balance for the available fare, the central processing unit 10 controls the switching circuit 30 to block the call path for the station or the trunk without the balance of the available fare in step 209. do.

As described above, the present invention designates a group or class for an extension or trunk line in a key phone system, registers an available amount for each extension and trunk line, and registers a toll charge according to the extension and trunk line. Since there is no available balance by subtracting from the available amount, it limits the C.O.line line call, so you can check your call rate after the call and charge the rate correctly. Can be imposed. Offices also have the advantage of controlling employees' private calls.

Claims (3)

In the call restriction method of the key phone system, Inputting the available amount for each station and trunk line, Registering the base rate according to the frequency by region after inputting the available amount; Storing a smaller amount of the usable amount of the station currently in use and the amount used by the CO line in use when the CO line is established through the corresponding station and CO line; Calculating a call charge when a trunk line call is formed through the corresponding extension and trunk line; Displaying the available balance by subtracting the calculated currency charge from the available amount stored in the buffer; Displaying the available balance and proceeding with the call and changing the class so that a call can be made to another extension when the remaining balance of the CO line remains when one station has no available balance; After changing the class, if there is no usable balance for the other extension line, indicating that there is no usable balance and the process of cutting the currency path, characterized in that the key phone system. The method of claim 1, In the call rate calculation process, the call rate calculation is calculated by multiplying the number of frequency per call provided from the exchange by the registered base rate, the fixed price call method of the key phone system. The method of claim 1, And a step of generating an alarm sound when the displayed available balance reaches a set time for generating an alarm because the remaining available balance is short.