KR100605642B1 - Method for toll free call in communication station - Google Patents

Abstract

The present invention provides a toll-free call method of a communication terminal, comprising: a first step of allocating a toll-free to a specific value of a setup message when a call is originated from a calling terminal; A second step of allowing a called terminal to select whether to receive a toll-free call when the call is originated from the calling terminal after the first step; A third step of, if the called terminal selects to receive a toll-free call, makes a call between the calling terminal and the called terminal and then charges the telephone number of the called terminal after completion of the call; If the destination terminal selects not to receive the toll-free call, it comprises a fourth step of transmitting a call rejection message to the calling terminal, thereby making a toll-free call with a simple key operation when making calls between the terminals. Will be.

Description

Method for toll free call in communication station

1 is a block diagram of a general communication system,

2 is a system diagram showing a process when using a conventional mobile phone,

3 is a flowchart illustrating a charging method when using a conventional mobile phone,

4 is a flowchart illustrating a toll-free call method of a communication terminal according to the present invention.

Explanation of symbols on the main parts of the drawings

10: exchanger 20: HLR

30: PSTN 40: base station

41: authentication module 42: charging module

50: terminal 51: mobile phone

The present invention relates to a toll-free call method of communication terminals, and more particularly, to a toll-free call method of a communication terminal, which is suitable for performing a toll free call with a simple key operation when making calls between terminals. will be.

In general, communication systems are intended for people, cars, ships, trains, aircraft, etc. This includes key phone systems, mobile phones (mobile phones, vehicle phones), port phones, aircraft phones, mobile public phones (trains, cruise ships, Installed on express buses), radio calls, radiotelephones, satellite mobile communications, amateur radio, and fishing service.

These communication systems include an AMPS (Advanced Mobile Phone Service) system using an analog method, a Code Division Multiple Access (CDMA) system using a digital method, a Wideband Code Division Multiple Access (WCDMA), and a Time Division (TDMA). Multiple Access, Time Division Multiple Access (FDMA) System, Frequency Division Multiple Access (FDMA) System, Wireless Local Loop (WLL), CDMA2000-1x, IMT-2000 (International Mobile Telecommunication in the year 2000, Global mobile communication (GSM) systems and GSM (Global System for Mobile communication) systems.

The terminal used in such a communication system allows a user to perform a call function through a wireless section or a wired section.

1 is a block diagram of a general communication system, in particular an example of a mobile communication system.

Where reference number 10 is a mobile switching center / visitor location register (MSC / VLR), 20 is a home location register (HLR), 30 is a public switched telephone network (PSTN) , 40 is a base station (Basic Station Controller / Base station Transceiver System, BSC / BTS), 50 is a terminal (Mobile Station, MS).

Thus, the MSC 10 performs an exchange function, and serves as a road and an intersection of all communication lines.

The HLR 20 is a database in which subscriber information is stored, and the VLR is a device that temporarily stores important subscriber information in order to prevent frequent HLR 20 inquiry.

The PSTN 30 refers to the entire telephone network used in a general home.

Thus, when making a call from the home telephone to the subscriber's terminal 50 of the communication system, the home telephone signal is first connected to the PSTN 30 and then inputted to the switch 10 of the network operator using the telephone number.

The exchange 10 of the communication network operator inquires whether the subscriber is a valid subscriber and the location of the subscriber to the HLR 20 and transmits the information to the corresponding base station 40 to call the mobile communication terminal 50 such as a mobile phone.

The location of the BSC and VLR in terms of systems may vary depending on the equipment manufacturer. For example, the BSC may be in the same spatial location as the MSC or may be in the BTS, which is the base station 40. The base station 40 in FIG. 1 means that the BSC and the BTS are combined.

2 is a system diagram showing a process when using a conventional mobile phone.

Here, reference numeral 40 denotes a base station, 41 denotes an authentication module for authentication of a charging target mobile phone number and a password, and 42 denotes a charging module for charging with the charging target mobile phone number.

In addition, reference numeral 51 denotes a mobile phone of another user, and the mobile phone 51 is a general mobile phone which is currently commercially available.

3 is a flowchart illustrating a charging method when using a conventional mobile phone.

Therefore, the charging process in the case of making a call using another user's mobile phone 51 will be described below.

When the user presses a specified number to use the charging service to another user's mobile phone 51 and presses a send button, the user is connected to the corresponding base station 40 (ST1).

For example, the designated number may be '# 5555' or the like.

When connected with the base station, a message such as 'Please enter the phone number to charge' is output from the answering machine of the base station, and the user inputs the billing target phone number from the mobile phone 51 of the other user according to the message (ST2). .

The billing phone number is usually your mobile phone number.

For the telephone number entered by the user in step ST2, when the base station requests to enter a password for authentication, the user must enter the password (ST3). Here, the password can also be used as a password for voice verification.

The password authentication process is to prevent the charge of the call to the other person by involuntarily entering the other person's phone number.

So the authentication module 41 of the base station 40 checks whether the password is correct (ST4), and if the password is correct, the automatic answering system of the base station 40 outputs a message such as 'Please enter the other party's phone number,' and the message According to the user enters the other party's telephone number to call (ST5).

As a result of the confirmation by the authentication module 41, if the password input by the user is not correct more than the specified number of times, the automatic response system of the base station 40 sends a message for authentication failure and retry to the cellular phone 51 (ST7). .

After being connected to the input counterpart phone number and the user calls, the call charge with the counterpart phone number is charged to the billing target phone number input in step ST2 (ST6).

However, the prior art has a limitation in that it is not possible to perform a toll-free call without passing through an operator by simply pressing a key when making calls between terminals.

Toll Free Call is a toll-free phone. In the United States, companies use it mainly for customer service for commercial purposes. This is mainly used when booking a flight or hotel or ordering something. It is like the clover service system in Korea. Our country uses 080 instead of area code. (In the US, use 800 instead of area codes.) That means you don't have to pay for phone numbers if your phone number starts with 080.

To do this, you must call a provider who provides a toll-free call service and ask them to connect to a toll-free call to a certain number, or you can enter 080 instead of an area code and access a specific system that provides 080 service. .

However, such a prior art could not use a toll precall service between terminals.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is a toll-free call method of a communication terminal capable of performing a toll-free call with only a simple key operation when making calls between terminals. To provide.

Toll-free call method of the communication terminal according to an embodiment of the present invention to achieve the above object,

A first step of allocating a toll-free value to a specific value of a setup message when the calling terminal originates a call; A second step of allowing a called terminal to select whether to receive a toll-free call when the call is originated from the calling terminal after the first step; A third step of, if the called terminal selects to receive a toll-free call, makes a call between the calling terminal and the called terminal and then charges the telephone number of the called terminal after completion of the call; If the called terminal selects not to receive the toll-free call, the technical configuration includes performing a fourth step of transmitting a call rejection message to the calling terminal.

Hereinafter, an embodiment according to the present invention as described above, the technical spirit of the toll-free call method of the communication terminal will be described with reference to the drawings.

4 is a flowchart illustrating a toll-free call method of a communication terminal according to the present invention.

As shown therein, a first step ST11 of allocating a toll-free value to a specific value of a setup message when a call is originated from a calling terminal; A second step (ST12) (ST13) for allowing the called terminal to select whether to receive a toll-free call when the call is made from the calling terminal after the first step; A third step (ST14) (ST15) of making a call between the calling terminal and the called terminal and then charging the telephone number of the called terminal after the call is completed if the called terminal selects to receive a toll free call; If the destination terminal selects not to receive the toll-free call, a fourth step (ST16) of transmitting a call rejection message to the calling terminal is performed.

In the first step, toll-free is assigned to a specific value of a value of an information transfer capability field in a bearer capability information field of a setup message when a call is originated from an originating terminal. Characterized in that.

In the first step, toll-free is assigned to 0x4 of a value of an information transfer capability field in a bearer capability information field of a setup message upon call origination of a calling terminal. It is characterized by.

In the second step, a message indicating whether to receive a toll-free call to the called terminal is displayed in a pop-up window.

In the second step, a message indicating whether to receive a toll-free call to the called terminal is notified by voice.

The operation of the toll-free call method of the communication terminal according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First of all, the present invention intends to perform a toll-free call with only a simple key operation when making calls between terminals.

Therefore, the calling terminal allocates toll-free to a specific value of the setup message when the call originates (ST11).

This is 0, 1, 2, 3, 5, 7 of the values of the information transmission credentials field in the bearer credentials field of the setup message is currently used for other purposes. Toll-free is assigned to 0x4 not used here.

Then, the calling terminal attempts to make a call by calling the call including the allocated toll-free (ST12).

So when an incoming call comes in with 0x4 in the bearer credential field, the incoming call must be filled with 0x4 in the outgoing phone. Do you want to receive a pop-up window like this?>. It may also inform the called terminal by voice (ST13).

If the user selects <Yes> (which can be selected by pressing a specific button on the called terminal) and selects to receive a toll free call at the called terminal, a call is made between the calling terminal and the called terminal (ST14). .

After completion of the call by the toll-free call, the phone number of the called terminal is charged and the caller is borne by the called party (ST15).

If the user selects <No> (which the user can select by pressing a specific button on the called terminal) and chooses not to receive a toll free call at the called terminal, the call rejection message (user) through the exchange 10 to the calling terminal is selected. A disconnect is transmitted with a reject cause. Then, the phone call is not made (ST16).

As described above, the present invention is to perform a toll-free call with a simple key operation when the terminals make calls.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the toll-free call method of the communication terminal according to the present invention, unlike the prior art, by inputting a specific value in the setup field without pressing another identification number (for example, 080, etc.), the terminals call each other. Toll free call can be performed with a simple key operation.

Claims (5)

A first step of allocating a toll-free value to a specific value of a setup message when the calling terminal originates a call; A second step of, when the call is originated from the calling terminal after the first step, notifying the called terminal whether to receive a toll free call and selecting whether to receive a toll free call; A third step of, if the called terminal selects to receive a toll-free call, makes a call between the calling terminal and the called terminal and then charges the telephone number of the called terminal after completion of the call; And a fourth step of transmitting a call rejection message to the calling terminal if the called terminal selects not to receive the toll free call. The method of claim 1, wherein the first step, A toll-free call method of a communication terminal, characterized in that toll-free is allocated to a specific value of a value of an information transmission entitlement field in a bearer credential information field of a setup message when a call is originated by a caller. The method of claim 1, wherein the first step, A toll-free calling method of a communication terminal, wherein a toll-free method is allocated to 0x4 of a value of an information transmission entitlement field in a bearer credential information field of a setup message when a call is originated by a caller. The method according to any one of claims 1 to 3, wherein the second step is A toll-free call method of a communication terminal, wherein a message indicating whether to receive a toll-free call to the called terminal is displayed in a pop-up window. The method according to any one of claims 1 to 3, wherein the second step is A toll-free call method of a communication terminal, wherein the toll terminal receives a toll-free call message.

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