KR100278740B1 - Method of executing free-phone service in electronic exchange system - Google Patents

Abstract

The present invention relates to a next-generation intelligent network incoming billing call processing method in an electronic switching system for implementing a call processing process by the incoming billing service as a next-generation intelligent network service, according to the present invention. Is registered, the call setup by the service billing code by the service access code having a predetermined digit and the called billing number from the calling party's terminal 10 to the called party's terminal 60 is requested. Determine the serviceability of the calling party terminal 10 according to the call setup request by the billing service, and if the incoming billing service is available, the call path to the called party's terminal 60 by the incoming billing service is determined. Set, perform the call release procedure when the call end of the calling party terminal 10 and the call charge of the calling party terminal 10 Is charged based on the incoming billing service, and the call connection failure is notified to the calling party's terminal 10 when the call setup fails by the incoming billing service for the calling party's terminal 10.

Description

Next-generation intelligent network incoming billing call processing method in electronic exchange system {METHOD OF EXECUTING FREE-PHONE SERVICE IN ELECTRONIC EXCHANGE SYSTEM}

The present invention relates to a next generation intelligent network incoming billing call processing method in an electronic switching system, and more particularly, to a forwarding billing call processing method as a next generation intelligent network service that can be implemented by a TDX-100 toll exchanger.

As is well known, the electronic switching system performs a function of automatically setting a call path between the called party terminal by calling the called party terminal in response to a call establishment request from the calling party terminal. Typically, such an electronic switching system is an ASS (Access Switching Subsystem) to which a predetermined number of subscriber terminals are connected, and an INS (Interconnection) which is responsible for allocating / setting up a call in response to a call connection request generated through the ASS. Network Subsystem) and Central Control Subsystem (CCS) for maintenance and repair of the corresponding exchange system and management of billing information.

Among them, ASS is equipped with time switch, signal switch, recording guide device, SS NO.7 signal device, packet processing device, and so on, and performs call processing functions such as subscriber and relay line matching and call origination and reception. Such ASSs include ASS-S (Subscriber) designed to enable analog subscriber and ISDN subscriber matching, ASS-T (Trunk) designed for trunk line matching, and ASS-S / T (Subscriber / It is shaped as a trunk and has a structure that can be distributed in a systematic manner, and can be employed individually or in combination in the corresponding electron exchanger system (typically TDX-100).

In addition, the INS is located at the center of the corresponding exchange system, and the INS intensively handles the number translation function, the route control function, and the space switch connection function for performing the connection between the ASS, or the connection between the ASS and the CCS. A data link is provided that connects each ASS point-to-point so that communication between each ASS can be performed only through the data link (ie, communication of information exchanged between subscribers and / or used within the system). Communication of information transmitted in order to perform the communication, and a fiber optic link is employed as a data link between the ASS and the INS. The switch employed in the electronic switching system has a time-space-time (T-S-T) switch structure by a time switch located at each ASS and a space switch located at INS.

In addition, CCS will perform the overall maintenance and administration (M & A) 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 calling party subscribers, but recently, TDX-100 exchanges are used as a type of next-generation intelligent network service. Incoming billing function added to the side is considered.

Such a billing function is currently serviced by the TDX-10 Toll exchange system, but in this case the independence between the exchange system and the incoming billing service is not maintained and the data for the service subscriber or service user is accepted at the exchange. There is a disadvantage that must be.

That is, when a called party's terminal is called from a particular calling party's subscriber terminal, it is disadvantageous that it is necessary to check whether the corresponding calling number is registered in the incoming billing service based on the translation result of the calling party's terminal. Will be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main object is to give a service subscriber a call charge service code and a call charge number of a predetermined digit to a service subscriber, and the charge of a call received by the number is a service user (calling side; originating side). Instead, the present invention provides a next-generation intelligent network incoming billing call processing method in an electronic switching system to be charged to a service subscriber (calling party; called party).

Another object of the present invention is an electronic exchange to guide a call connection failure when a call connection is not made due to a missing or service restriction request when a call is set up by a called billing service using a called billing service code and a called billing number. To provide the next generation intelligent network incoming billing call processing method in the system.

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. An electronic switching system for setting a call, wherein the called party's terminal is registered with an incoming billing service and the called party's terminal is dialed through a service access code and a called billing number having a predetermined digit from the calling party's terminal. The call setup by the incoming billing service is required, and the call setup failure by the incoming billing service for the calling party is determined by determining the serviceability of the calling party's terminal according to the call establishment request by the incoming billing service. The caller's subscriber terminal is informed according to the call connection failure. If possible, establish a call path to the called party's subscriber terminal by the incoming billing service, perform a call release procedure when the calling party's terminal is terminated, and call charge of the calling party's terminal based on the incoming billing service. A next generation intelligent network incoming billing call processing method in an electronic exchange system is provided.

According to the next-generation intelligent network incoming billing call processing method in the electronic switching system according to the present invention, the service user dials the service access code and the incoming billing number while giving the service access code and the forwarding billing number to the service user. When the call is connected to the actual destination number specified by the service subscriber, the call charge is charged to the destination account number. In addition, when the actual called number is missing or subject to service restriction, the voice connection status will be guided.

1 is a schematic block diagram of an electronic switching system to which an incoming billing call processing method of a next-generation intelligent network service according to the present invention is applied;

2 is a flowchart illustrating a next generation intelligent network incoming billing 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: local exchange (calling party), 60: called party subscriber 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 exchange system to which an incoming billing call processing method according to the present invention is applied.

In the figure, reference numeral 10 denotes a calling party subscriber station that registers an incoming billing service included in the next-generation intelligent network service assumed by the present invention, and 20 denotes a component of the above-described exchange system while the subscriber station 10 is accommodated. Represents a local exchange configured including ASS / INS / CCS).

30 indicates a service switching point (SSP) as a service switching system, and the SSP 30 provides network access to service users connected to the local exchange 20 or provides a switching function necessary for call connection. In addition to providing overall access to the relevant capability groups of the intelligent network, the SSP 30 can then communicate with other physical entities including SCP and IP, as well as sensing capabilities to detect intelligent network service requests. Communication capability, 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.

Preferably, the incoming billing service as the next-generation intelligent network service assumed in the present invention can be designated by, for example, a 3-digit service access code (xxx) and a 7-8 digit incoming billing number (xxxx-xxxx).

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.

50 denotes a local exchange in which the called party (called party) subscriber station 60 designated by the calling party subscriber station 10 as the destination of the recipient is accommodated.

In addition, 70 denotes an IP (Intelligent Peripheral) as a special resource providing system. The IP 70 is a customized announcement, a speech processing device for speech / language synthesis and recognition, a DTMF digit collector, and an audio conference bridge. It also provides resources such as information distribution bridge, tone generator, etc. to provide flexible interaction between user and network.

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

First, when the calling party terminal 10 is hooked-off in step 100 and then the incoming call service of the incoming billing service is dialed from the calling party subscriber terminal 10 in step 110 when a call by the incoming billing service is dialed. The local exchange 20 is notified to the SSP 30 of the TDX-100 toll exchange. Then, the SSP 30 notifies the SCP 40 of the service access code and incoming call number received from the calling subscriber terminal 10, and the SCP 40 then accesses the service in step 120. The code and the called party number will be verified.

Based on the verification result in step 120, the SCP 40 determines in step 130 whether the service access code and the called charge number are normal, and the service access code and the called charge number are abnormal, such as a missing or incoming charge service. If the restriction number (i.e., 'NO' in step 130), the process proceeds to step 140 where the SCP 40 controls the IP 70 so that a voice message regarding a call connection failure of an incoming billing service is received by the calling party. It is to be output to the terminal 10 side.

On the other hand, if the service access code and the incoming call number inputted from the calling party's subscriber terminal 10 are normal (that is, 'YES' in step 130), the SCP 40 performs step 150. In addition to requesting a call processing event (Event) report to the SSP (30) to notify the call information (number to be received).

Accordingly, the SSP 30 routes to the called-side local exchange 50 in which the number to be called is received, and accordingly, the calling party 10 and the called-party subscriber 60 in step 170 are called. The call path is set between and the call is in a busy state.

When the calling party and the called party 10 and 60 are in a call state, for example, when the calling party 10 is in the hook-on state (YES in step 180), the calling party is called. Information about the hook-on state of (10) is drawn from the local exchange 20 to the SSP 30 side, so that the SSP 30 sends a call to the calling subscriber terminal 10 to the SCP 40. Report the status. Accordingly, in step 190, a call for release from the local exchange 20 is applied to the SCP 40 through the SSP 30, so that the calling party's terminal 10 and the called party's terminal 60 are connected. In general, the usual anti-cancer procedure is performed.

Here, the call charge of the call subscriber terminal 10 is added to the incoming charge number specified by the service subscriber when the call is released.

As described above, according to the next-generation intelligent network incoming billing call processing method in the electronic switching system according to the present invention, the incoming billing service to be implemented in the next-generation intelligent network electronic switching system is based only on the incoming billing service number and the incoming billing number of a predetermined digit. As it becomes feasible, the incoming billing service can be provided without requiring additional information from the service user. In addition, when a call setup request by the incoming billing service is requested, a call for failure of the called number or a call connection failure due to service restriction is also provided, thereby providing convenience to the service user.

Claims (1)

In response to a call setup request from the calling party's terminal 10 accommodated in the calling local exchange 20, establishing a call path with the called party's terminal 60 connected to the called party's local exchange 50; In the electronic exchange system, In the state where the calling party subscriber terminal 10 registers the incoming billing service, the called party subscriber terminal 60 dials the service access code and the called accounting number having a predetermined digit from the calling party subscriber terminal 10. Call setup by incoming billing service is required, In response to the call setup request by the incoming billing service, the serviceability of the calling party subscriber terminal 10 is determined, and when the call setup fails by the incoming billing service for the calling party subscriber terminal 10, the calling party subscriber terminal ( 10) to guide the call connection failure, If the incoming billing service is available, establish a call path for the called party's subscriber terminal 60 by the incoming billing service, Next-generation intelligent network incoming in the electronic switching system, characterized in that to perform the call cancellation procedure upon termination of the call subscriber terminal 10 and to charge the call charges of the call subscriber terminal 10 based on the call charge service. How to handle billing call.

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