KR100227338B1 - Charging data displaying method of keyphone system - Google Patents

Abstract

[0001] The present invention relates to a telephone, and more particularly, it relates to a telephone set for a telephone key telephone system which displays, on a display unit of a key phone, a sum of a call charge added during a call and a used call charge, Display method.

The conventional key telephone system does not display the contents of the charged call through the display unit of the key phone but manages it by using a separately installed fare climbing device. Therefore, when using a key telephone to make a long-distance call or an international call, The user can not make an economical call and the accumulated amount of the call charges used so far can be checked only through the installed fare climbing device, so that it is troublesome for the user to check the call charge.

In the present invention, during a call using the key phone, a current call rate is displayed in real time on the display unit of the key phone, and a cumulative total of the call charges used during the call is confirmed through the display unit of the key phone. It is possible to make an economical call while confirming the number of calls, and the cumulative number of call charges used during that time can be easily confirmed through the display unit of the key phone.

Description

How to display the call rate of the keyphone system

[0001] The present invention relates to a telephone, and more particularly, it relates to a telephone set for a telephone key telephone system which displays, on a display unit of a key phone, a sum of a call charge added during a call and a used call charge, Display method.

In general, when a call is made using a key phone, a phone number or a talk time of a calling party is displayed on a display unit provided in the key phone, and the user is informed of the phone number or the call time, It is possible to know the time of the call.

In the above-described key phone, the contents of the telephone call are not displayed through the display unit of the key phone, but are managed by using a separately installed fare climbing device. Therefore, the call charge used by the user in the hotel- . Therefore, the user can not know how much the current call rate is used. Therefore, when using a telephone call or an international call using the key phone, the user can not make an economical call due to the long-time call, The accumulated amount of charges can be confirmed only through the installed fare climbing device, so that it is troublesome for the user to check the call charge.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a key telephone system, in which when a telephone call is made using a key telephone, the presently used amount is displayed in real time on the display unit of the key phone, So that the user can make an economical call while confirming the current used call charge and at the same time the call charge of the key phone system in which the accumulated amount of the used charge can be easily confirmed through the display unit of the key phone And to provide a display method.

According to another aspect of the present invention, there is provided a method of displaying a call charge of a key telephone system, comprising the steps of: checking whether a function button for confirming an accumulated call charge used from a telephone key is input; Checking whether the telephone number is input from the key telephone if the function button is not input from the key telephone; Controlling the exchange to display the telephone number input from the key phone on the key phone when the telephone number is input from the key phone; Activating a timer for calculating a call charge when an answer signal is received by checking whether a call is answered by a call of the other party, the call originating from the other party corresponding to the incoming telephone number; Checking whether the telephone exchange of the key telephone is completed; If it is determined that the telephone call has not been terminated, the controller checks whether or not the exchange has timed out. If it is determined that the call has timed out, the call charge corresponding to the called party is calculated on the basis of the predetermined rate data, Transmitting a call charge to the key phone; A step of resetting the timer after the exchange calculates the call rate and starting counting again; If the telephone call is terminated, the exchange calculates the total amount of the call charge and transmits the calculated call charge to be displayed on the display unit of the key telephone to the key phone; A step in which the exchange transmits the calculated call charge to a rate climbing unit to be used for calculating a cumulative call charge used during that time, and releases the call; And if the function button is input from the key phone, the data of the accumulated call charge is read from the rate equalizer and transmitted to the key phone so that the read accumulated call charge is displayed on the key phone .

FIG. 1 is a configuration diagram of a key telephone system according to the present invention; FIG.

FIG. 2 is an exemplary view showing a method of displaying a call rate of the key telephone system according to the present invention; FIG.

FIG. 3 is a flowchart illustrating a method of displaying a call charge of the keyphone system according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

100: exchanger 110: trunk card part

120: switching / tone source part 130: line card part

140: control unit 200: fare climbing unit

300a 300n: Keyphone

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

As shown in FIG. 1 of the accompanying drawings, the key telephone system according to the present invention includes an exchange 100, a fee climbing unit 200, and a plurality of keyphones 300a 300n. The exchange 100 includes a plurality of keyphones 300a 300n so that the key phone 300a 300n, and controls the respective key phones 300a And the fare climbing unit 200 calculates the fare used by the key phone 300a 300n to calculate and store a cumulative total of the charges used during that time.

The switching center 100 includes a trunk card unit 110, a switching / tone source unit 120, a line card unit 130, and a control unit 140. The trunk card unit 110 includes a key phone 300a 300n to a public switched telephone network (PSTN) or a key telephone 300a 300n) to each other. The switching / tone source unit 120 outputs a tone corresponding to the call path setting and data applied through the line card unit 130, and the line card unit 130 includes a plurality of keyphones 300a 300n are connected to the keyphone 300a To the switch / tone source unit 120. The switch / tone source unit 120 outputs the data and voice signal input through the key unit of the switches / The control unit 140 controls the overall operation of the switching center 100, And 300n, and outputs various kinds of call processing programs, 300n.

The operation of the present invention in a keyphone system configured as described above will be described with reference to FIGS. 2 and 3 of the accompanying drawings.

FIG. 2 is a view illustrating a display of a key phone display unit to which the present invention is applied.

First, when a long distance call is made using the key phone system to which the present invention is applied, for example, when the user tries to make a call to the key phone 300a (Step S2), the switching / tone source unit 120 generates a tone corresponding to the inputted number, and then, the tone number corresponding to the input number is input to the control / (140). Accordingly, the control unit 140 transmits the input number to the key phone 300a (Step S3), allocates an idle trunk card of the trunk card unit 110, and makes an outgoing call to the other party (step S4). At this time, when the subscriber of the other party answers, the trunk card unit 110 receives a control signal indicating the start of the call charge from the telephone company (step S5), and the control unit 140 recognizes the start of the call, And the timer counts the time to be counted by the key phone 300a 300n on the display unit (step S6). Thereafter, the control unit 140 checks whether or not a call termination signal is applied from the line card unit 130 (step S7). If the call is not terminated, the timer that operates operates to count a predetermined period of time, (Step S8). If the timer has not timed out, the process returns to step S7. If the timer has timed out, the call rate corresponding to the area of the other party in the call is calculated from the preset rate data, Upon output, the line card unit 130 transmits the key phone 300a (Step S9). After that, the timer is initialized, and then the timer is activated again and the process returns to step S7 (step S10). If the call termination signal is received through the line card unit 130 in step S7, the control unit 140 calculates the total amount of the call charges, (Step S11), outputs the data related to the call charge to the charge climbing section 200 and stores the data (step S12), releases the call and terminates the operation (step S13) . The call charge output to the charge climbing unit 200 in step S12 is added to and stored in the accumulated call charge used during that time.

Meanwhile, the operation of searching for the details of the accumulated call charge that the user has used up to now using the key phone system to which the present invention is applied is as follows.

When the user presses the key phone 300a The control unit 140 receives the charge confirmation function button provided in the key unit of the keypad 300a (300a) 300n, and transmits the key phone 300a to the fare climbing unit 200 side 300n, the rate climbing unit 200 transmits the data related to the key phone 300a 300n from the storage device and transfers the data to the control section 140 (step S14). Accordingly, the control unit 140 transmits the accumulated call charge data to the corresponding key phone 300a 300n, and the key phone 300a 300n display the accumulated call charge on the display unit (step S15), so that the user can easily retrieve the details of the accumulated call charge used by the user.

As described above, according to the present invention, during a call using a key phone, a current call rate is displayed in real time on a display unit of a key phone, and a cumulative total of the call charges used during the call can be confirmed through a display unit of the key phone, The user can make an economical call while confirming the current used call rate and can easily confirm the accumulated number of the used call charges through the display unit of the key phone.

Claims (1)

Checking whether a function button for confirming a cumulative call charge used by the exchange from the key phone is input; Checking whether the telephone number is input from the key telephone if the function button is not input from the key telephone; Controlling the exchange to display the telephone number input from the key phone on the key phone when the telephone number is input from the key phone; Activating a timer for calculating a call charge when an answer signal is received by checking whether a call is answered by a call of the other party, the call originating from the other party corresponding to the incoming telephone number; Checking whether the telephone exchange of the key telephone is completed; If it is determined that the telephone call has not been terminated, the controller checks whether or not the exchange has timed out. If it is determined that the call has timed out, the call charge corresponding to the called party is calculated on the basis of the predetermined rate data, Transmitting a call charge to the key phone; A step of resetting the timer after the exchange calculates the call rate and starting counting again; If the telephone call is terminated, the exchange calculates the total amount of the call charge and transmits the calculated call charge to be displayed on the display unit of the key telephone to the key phone; A step in which the exchange transmits the calculated call charge to a rate climbing unit to be used for calculating a cumulative call charge used during that time, and releases the call; And if the function button is inputted from the key phone, the data of the accumulated call charge is read from the charge equalizing unit, and the accumulated call charge is read by the key phone to be displayed on the key phone. Quot;