KR19990061160A - Next Generation Intelligent Network Credit Call Call Processing in Electronic Switching System - Google Patents

Abstract

The present invention relates to a next generation intelligent network credit call call processing method in an electronic exchange system for implementing a credit call service as a next generation intelligent network service.

According to the present invention, as the credit call service is requested from the calling party subscriber terminal 10, the credit call password is guided and the password input from the calling party subscriber terminal 10 is justified in response to the input of the password. If the judgment is justified, it guides the input of the called party number, and in response to the guidance, determines whether the called party number input from the calling party terminal 10 is normal and if it is normal, the called party terminal 10 and the called party are called. Comprising the step of setting the call path between the terminal subscriber terminal 70 and the call path cutting when the call is terminated, and when the determination result of the normality of the called number is missing, the guide for the missing number of the called number is made. Is more included.

Description

Next Generation Intelligent Network Credit Call Call Processing in Electronic Switching System

The present invention relates to a next-generation intelligent network credit call call processing method in an electronic exchange system. More particularly, the present invention relates to a call executed under the designation of a service access code and a credit number so as to be implemented by a TDX-100 Toll exchange. The present invention relates to a next-generation intelligent network credit call processing method in an electronic exchange system for imposing a charge on the credit number.

According to the well-known electronic switching system, in response to a call setup request from the calling party's terminal, the called party's terminal is called to automatically establish a call path with the calling party's terminal. The switching system includes an ASS (Access Switching Subsystem) to which a predetermined number of subscriber terminals are connected, an INS (Interconnection Network Subsystem) in charge of allocating / setting up a call in response to a call connection request generated through the ASS, It is equipped with CCS (Central Control Subsystem) for maintenance / repair of the relevant exchange system and management of billing information.

Here, the ASS is equipped with a time switch, a signal switch, a recording guide device, an SS NO.7 signal device, a packet processing device, and the like to perform call processing functions such as subscriber and relay line matching and call origination and reception. Generally, ASS is an ASS-S (Subscriber), ISDN (Subscriber) Subscriber and ASS-T (Trunk) for trunk line matching, and ASS-S / T for subscriber and relay line matching. It is designed as (Subscriber / Trunk) to have horizontally distributed arrangement.

In addition, the INS is located at the center of the exchange system and intensively handles the number translation function, route control function, and space switch connection function for ASS mutual connection or ASS and CCS connection. Using a data link that connects each ASS point-to-point, and communicates between each ASS only through that data link (i.e., communicating information between subscribers and / or using it inside the system) Communication of information transmitted for the purpose of communication).

Preferably, the data link between the ASS and the INS employs a fiber optic link, and the switch employed in such an electronic switching system is a TST (Time-) by a time switch located at each ASS and a space switch located at the INS. Space-Time) switch structure.

In addition, CCS will perform the overall maintenance and administration (MA) function of the corresponding exchange system. In other words, the CCS has not only system-level maintenance, test and measurement, and control functions, but also auxiliary tape (Magnetic tape and disk) control management, various input / output door control functions with the operator, and data channel connection functions with other systems. Will be performed. Preferably, there is only a link between the CCS and the INS for control interworking.

When an electronic switch system having such a basic structure generates a call request from a subscriber and / or a relay line, the ASS detects the occurrence of the call request and starts a call origination function, and receives the INS from the subscriber and / or the relay line. Number translation is required for number information. After the INS completes the translation of the number, the INS performs the procedure of establishing an internal call path between the ASS accommodated by the calling party and the ASS accommodated by the called party through search and connection. And the called party is initiated by the call path.

When the call between the calling party and the called party is completed, the ASS detects the completion of the call and releases the connection to the internal call, and notifies the CCS of the billing data for the call made.

On the other hand, the failure status generated from ASS or INS is notified to CCS, and the system-level maintenance functions are intensively processed by the CCS, and the operation management functions such as billing, statistics, and operator matching are intensively processed in the CCS. .

By the way, in the above-described electronic exchange system, call charges are usually charged to the calling party, but recently, credit call service is considered as a next-generation intelligent network service that can be implemented using the TDX-100 exchange as a parent due to the development of the credit society. to be. The credit calling service is a service that charges a specific credit billing number instead of a call charge for the entire call made by a service subscriber. Therefore, in consideration of a call request made by such a credit call service in real time, consideration of security functions to prevent the leakage of credit number and / or credit call service applied to the credit call or credit call service applied to the credit call should be considered. This is a required situation.

Accordingly, the present invention has been made in view of the above-described circumstances, and by introducing a password management system to prevent the theft of the credit call service while allowing the subscriber to perform the credit call service according to a specific service access code and credit number. The purpose of this paper is to provide a next generation intelligent network credit call call processing method in an electronic exchange system to maintain security for credit call service.

In order to achieve the above object, according to a preferred embodiment of the present invention, in response to a call setup request from a calling party's terminal accommodated at a calling local exchange, a call path with a called party's terminal connected to a called local exchange is connected. In the electronic switching system for setting a value, a credit call password is inputted when a credit call service is requested from the calling party's terminal, and the validity of the password inputted from the calling party's terminal in response to the password input guide is provided. If it is justified, it guides the input of the called party's number. If it is normal, it judges whether the called party's number inputted from the calling party's terminal is normal and if it is normal, between the calling party's terminal and the called party's terminal. Is to set up a call path at the end of the call and cut the call path at the end of the call. A next generation intelligent network credit call call processing method in a self-exchange system is provided.

Preferably, the credit call service is executed by designation of a service access code and a credit number, and the credit number for the credit call service includes a credit card number.

In addition, when the determination result of the normality of the called number is missing, the step of the guidance of the missing number of the called number is further included.

According to the next-generation intelligent network credit call processing method in the electronic exchange system of the present invention having the above-described configuration, when a call request under a credit call service is generated by specifying a service access code and a credit charge number by the service user, the credit charge number It requires the input of a password for the password and if the password is justified to guide the input of the called number, and in response to the guidance is set to the call for the incoming number is made, and when the incoming number is notified Will be done.

1 is a schematic block diagram of an electronic switching system based on a TDX-100 exchange system to which a next-generation intelligent network credit call processing method as a next-generation intelligent network service according to the present invention is applied;

2 is a flowchart illustrating a next generation intelligent network credit call call processing method in an electronic switching system according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: calling party subscriber terminal, 20: local exchange (calling party),

30: TDX-100 toll SSP, 40: Service Control Point (SCP),

50: voice guidance unit (IP), 60: local exchange (calling side),

70: called party's terminal.

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

1 is a schematic block diagram of an electronic switching system to which a next-generation intelligent network credit call processing method according to the present invention is applied. In the figure, reference numeral 10 denotes a calling party subscriber station that registers a credit call service included in the next-generation intelligent network service assumed in the present invention, and 20 denotes a component (ASS / Represents a local exchange with INS / CSS).

In addition, 30 represents an SSP (Service Switching Point) as a service switching system, and the SSP 30 provides a network access to a service user connected to the local exchange 20 or exchange necessary for call connection. In addition to providing the functionality, it provides overall access to the relevant capability groups of the intelligent network. Accordingly, the SSP 30 detects the intelligent network service request and other physical entities including SCP and IP to be described later. It includes the ability to communicate and the ability to respond to commands sent from other physical entities. In addition, the SSP 30 functionally includes a call control function (CCF), a call control agent function (CCAF), and a service switching function (SSF). You can do it.

In addition, 40 represents a Service Control Point (SCP) as a service control system, and the SCP (40) has a service logic program and data necessary for processing an intelligent network service, and the SCP (40) has improved service quality and service. The same service logic program or data can be included for load sharing between control systems.

Here, according to the present invention, a credit call service as a next-generation intelligent network service includes, for example, a 3-digit service access code (xxx) and a credit number of a service user (for example, a credit card number or a prepaid card number, a financial account number), and the like. This is done under the registration of a password for the credit number.

In addition, 40 represents a Service Control Point (SCP) as a service control system, and the SCP (40) has a service logic program and data necessary for processing an intelligent network service, and the SCP (40) has improved service quality and service. The same service logic program or data can be included for load sharing between control systems.

In addition. 50 represents an IP (Intelligent Peripheral) as a special resource providing system. The IP 50 is a customized announcement, a speech processing device for speech / language synthesis and recognition, a DTMF digit collector, an audio conference bridge, and information. Resources such as distribution bridges, tone generators, etc., provide flexible interactions between users and the network.

Further, 60 denotes a local exchange in which the called party (called party) subscriber terminal 70 assigned with the called party number designated as the target of the credit call service by the calling party subscriber terminal 10 is accommodated.

Next, the next generation intelligent network credit call call processing method in the electronic switching system according to the present invention will be described in detail with reference to the flowchart shown in FIG. 2.

First, when the calling party subscriber terminal 10 is hooked-off in step 100 and then the credit calling service access code and credit number are inputted from the calling party subscriber terminal 10 in step 110, the calling party subscriber terminal 10 is entered. A call setup signal, a credit call service access code, and a credit number are applied to the SSP 30 from the calling local exchange 20 by the hook-off state of the terminal 10, and the SSP 30 is a SCP ( 40) notifies that the intelligent network service call is incoming. Therefore, the SCP 40 recognizes the credit access service by verifying the service access code and then verifies whether the incoming call is possible by verifying the credit call service number.

After the verification is performed, the SCP 40 instructs the SSP 30 to connect the bearer channel with the IP 50, and in response to the instruction, the SSP 30 connects with the IP 50. The channel is connected. After the bearer channel is connected, a message for guiding input of a password from the IP 50 is output to the calling party terminal 10 in step 130.

In response to the input guide of the password, in step 140, a password corresponding to the credit number is input from the calling subscriber terminal 10, and in response to the input of the password, the SCP 40 steps 150 Will verify that the password is valid.

If the password is invalid as a result of the authentication (i.e., NO in step 150), the SCP 40 attempts to re-enter the password from the IP 50 under the control of the SSP 30 in step 160. The guidance will be output. Subsequently, the SCP 40 again authenticates the validity of the password re-entered from the calling subscriber terminal 10 in response to the guidance in step 170, and if the password is not justified, proceeds to step 180. The call cutting procedure is then performed.

On the other hand, if it is determined that the password inputted as the authentication result in step 150 is legitimate or if the password inputted in the authentication result in step 170 is legitimate, the SSP 30 proceeds to step 190 and the SCP 40 Under the control of) to guide the procedure for changing the destination number or password from the IP (50).

In response to the guidance, when an incoming number is input from the calling party terminal 10 in step 195, the SCP 40 instructs the SSP 30 to release the bearer channel with the IP 50. In step 200, it is determined whether the called number is a callable number (for example, a number not registered in the call restriction).

As a result of the determination, if the called number is available (i.e., normal) (YES in step 210), the called number corresponds to the called number through the called-side local exchange 60 under the control of the SSP 30 in step 220. The called party subscriber terminal 70 is called to establish a call path with the calling party subscriber terminal 10.

Subsequently, the SCP 30 determines whether the call between the calling party's terminal 10 and the called party's terminal 70 is terminated in step 230, and upon completion of the call, the normal channel cutting process is performed in step 240. Will be done.

On the other hand, if the determination in step 210 indicates that the designated called number is not a callable number (i.e. NO in step 210), the SCP 40 receives an IP 50 under the control of the SSP 30 in step 250. ), The incoming call number is notified and the credit call processing process ends.

On the other hand, the above has been described a case where the credit call service according to the present invention is applied to a general subscriber, the present invention is not limited to such an application example, it is also applicable to a telephone dedicated to credit calls. Such a credit call-only telephone is represented as a card-type telephone. When the card-type telephone inserts a card into the telephone, the telephone automatically recognizes the card number and automatically assigns a service access number to be transmitted to the exchange. It becomes preferable.

As described above, according to the credit call processing method in the electronic exchange system according to the present invention, the credit call service to be implemented in the next-generation intelligent network electronic exchange system is based on the designation of the credit access service only by specifying the service access code and the credit charge number. After determining the feasibility, the credit call call processing between the calling party's terminal and the called party's terminal can be performed by guiding the input of the called number according to the input of the password.

Claims (4)

In response to a call establishment request from the calling party terminal 10 accommodated in the calling local exchange 20, establishing a call path with the called party subscriber terminal 70 connected to the called local exchange 60; In the electronic exchange system, As the credit call service is requested from the calling party subscriber terminal 10, the credit call password is guided. In response to the input guide of the password, judging the legitimacy of the password inputted from the calling party subscriber terminal 10 and guides the input of the called number if it is justified. In response to the guidance, it is determined whether the called number inputted from the calling party terminal 10 is normal, and if it is normal, a call path is established between the calling party terminal 10 and the called party terminal 70. Next generation intelligent network credit call processing method in an electronic switching system, characterized in that consisting of the steps of setting up and disconnecting the call at the end of the call. The method of claim 1, wherein the credit call service is executed by designating a service access code and a credit billing number. [3] The method of claim 2, wherein the credit number for the credit call service includes a credit card number. The method according to claim 1, further comprising the step of providing guidance on the missing number of the called number when it is determined that the called number is normal.