KR20000046380A - Automatic information service method for changed telephone number - Google Patents

Abstract

PURPOSE: An automatic information service method for a changed telephone number is provided to broadcast a changed telephone number and a changed date and to connect to the change number automatically according to the request of a calling subscriber. CONSTITUTION: A communication network to carry out an automatic information service method for a changed telephone number is configured of 3 local exchanges(104,106,112), a service switching point(108) and a service control point(110). The local exchange(104) is connected with a calling subscriber(102) as a calling exchange. The local exchange(112) is connected with a called subscriber(114) as a called exchange. The local exchange(106) is an exchange with which the called subscriber(114) was connected previously. The calling subscriber(102) attempts connection, dialing his previous telephone number.

Description

Method of announcing ported dial numbers in an exchange

The present invention relates to a modified telephone number guide technology for automatically guiding a changed telephone number, and more particularly, using a smart network to guide the changed telephone number and the date of change, as well as the changed telephone number according to the request of the calling subscriber. It is about a changed telephone number announcement method that automatically connects to.

In general, the announcement service at the exchange is provided by the access switching subsystem-Global Service (ASS-GS), which is divided into fixed and editorial. The fixed type provides a fixed guide sound such as "Please check the telephone number you have just changed." 30 channels are accommodated and the edited type has a different tone, such as "Changed to xxxx." Four channels are allocated by providing. Examples of editable announcements include self number announcements, missed announcements, number change announcements, and call rejection announcements. Here, the 'number change announcement' service refers to a service for guiding a changed new phone number to a voice for a predetermined period of time when the subscriber's phone number is changed to the calling subscriber who has changed the old telephone number. And the telephone number (DN) is composed of an area code (Area), prefix (prefix), subscriber number (TDN), usually guides the changed area code and station code and subscriber number.

However, the conventional number change guide service is a function of notifying only the changed telephone number to the calling subscriber when an arbitrary calling subscriber attempts to call the subscriber with the changed number. There is a problem in that service contents are extremely limited.

Accordingly, the present invention was devised to solve the above problems, and when the service user presses a conventional called number, the service switching switch (SSP) guides the changed phone number and the changed date when the service user is a service subscriber. The purpose of the present invention is to provide a method for automatically guiding the change number that can be automatically connected to the guide number as required.

In order to achieve the above object, the method of the present invention comprises the steps of: a dialing subscriber dialing a previous telephone number and attempting an incoming call; Analyzing the incoming number of the exchange in the destination country before the change and transmitting the service identification number, the area code, the station number, and the subscriber number to the service switching exchange (SSP) if the subscriber automatically changes the phone number; A service switching exchange (SSP) and a service control system (SCP) forming an operation according to an intelligent network application protocol (INAP) to transmit routing and charging information; Providing, by the service switching switch (SSP), with a guide tone for the changed number and date and a guide tone for selecting an automatic call connection or repeat listening function; If the calling subscriber selects the automatic call connection, the service switching exchange (SSP) attempts to connect to the called station exchange after changing and connects the calling subscriber and the called subscriber; And when the calling subscriber selects to listen repeatedly, the service switching switch (SSP) repeating the guide sound.

1 is a view showing a configuration example of a communication network to which the present invention is applied;

2 is a signal flow diagram when the present invention is applied to a PSTN;

3 is a signal flow diagram when the present invention is applied to ISDN.

* Explanation of symbols for main parts of the drawings

102,114: Subscriber 104,106,112: Single Station Switch

108: service switching exchange (SSP) 110: service control system (SCP)

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

1 is a diagram illustrating a configuration example of a switching network to which the present invention is applied, FIG. 2 is a signal flowchart when the present invention is applied to a PSTN, and FIG. 3 is a signal flowchart when the present invention is applied to an ISDN.

Referring to FIG. 1, in an embodiment of the present invention, a communication network includes three Local Exchange (LE) 104, 106, 112, a Service Switching Point (SSP) 108, and a Service Control System (SCP). Control Point (110), the terminal exchange (LE1) 104 is connected to the originating subscriber 102 as the originating exchange, the terminal exchange (LE3) 112 is the destination subscriber 114 is connected as the destination exchange. . The end-station switching unit (LE2) 106 is an exchange to which the called party 114 has been previously connected, and the calling subscriber tries to connect by dialing the previous telephone number.

The physical structure of the intelligent network includes Service Control Point (SCP), Service Management System (SMS), Service Switching Point (SSP), Intelligent Peripheral (IP), and Service Development. Service creation environment (SCE), and the like, a service control system (SCP) is a database system that provides service control logic and subscriber data information so that a service switching exchange (SSP) can perform service call processing. In FIG. 1, the service switch (SSP) 108 includes a call control function (CCF) and a service switching function (SSF), and a function for intelligent network service and a network connection to a user. Provide all access functions. The service control system (SCP) 110 has service logic and data necessary for intelligent network service processing.

In this configuration, the calling party 102 does not know the changed number and only knows the conventional phone number, so dials the conventional phone number. Accordingly, in the switching network and the intelligent network, the calling party 102 calls the service switching switch (SSP: 108). ) To be provided with a telephone number change guide service according to the present invention. That is, when the calling party 102 presses the called number (old phone number), the incoming exchange 106 before the change recognizes the changed telephone number subscriber and sets the outgoing route to the service switching switch (SSP) 108, and changes it. Send out telephone number service identification number (SAC), area code (ARCD), station code and subscriber number (OLD-DN).

When the service switching switch (SSP) 108 recognizes the service identification number and automatically recognizes the change telephone number service call, it performs the intelligent network call processing procedure and requests the actual changed called number and billing information to the service control system (SCP) 110. Generates an instruction-provided operation.

The service control system (SCP) 110 collects information necessary to perform a command providing operation through a database, and then transmits a new telephone number, billing information, a guide broadcast code, and the like to the service switching switch (SSP) 108. The service switching exchange (SSP) 108 transmits the changed telephone number and the automatic call access announcement by using the editable announcement, and automatically connects the call if the service user desires it.

At this time, the announcement is available in Korean, English, and mixed, and the example of the contents is "The telephone number you have just changed has been changed from xxxx x to area code xxxx and xxxx to xxxx. Please press "." If you would like to hear it again, please press the asterisk. Thank you. "

If the service user selects the well character (ie, presses) according to the announcement, the call is automatically connected to the changed telephone number, and if the asterisk (*) is pressed, the announcement is repeated again. .

When the present invention is applied to the PSTN network, as shown in FIG. 2, the calling subscriber (Sub.A), the calling station, the called station (before modification), the service switching switch (SSP), and the service control system (SCP) ), The called station (after change) and the called party (Sub.C) are transmitted.

Here, a signal is transmitted between the SSP and the SCP according to an intelligent network application protocol (INAP). The INAP receives an intelligent network processing request from an intelligent network exchange (SSP) and receives an appropriate application service element (ASE). It handles operation generation and response by driving the controller, and handles componentization of the generated operation and delivers it to the service switching exchange (SSP) and intelligent peripheral device (IP) distributed in the network. In terms of hierarchy, these INAPs are located between the application process and the TCAP and handle operations related to the intelligent network.

1 and 2, when the subscriber Sub-A turns off the hook of the telephone, the originating exchange (104 in FIG. 1) provides a dial tone. When the subscriber (Sub.A) hears a dial-tone (Dial-Tone), he or she dials the old telephone number (Old-DN) he knows, and accordingly, the calling party switch 104 dials the old telephone number (Old-DN). A call is attempted at the pre-change destination station exchange 106 corresponding to the call. Before the change, the destination exchange switch 106 sets the outgoing route to the SSP 108 if the call is the change phone number automatic guide service call, and the change phone number service identification number (SAC), area code (ARCD), old country code, and the like. Send the subscriber number (OLD-DN). The SSP 108 provides the B6 signal to the destination exchange switch 106 before the change according to the signaling procedure, forms an operation according to the intelligent network application protocol (INAP), and delivers it to the SCP 110. The SCP 110 interprets the received operation and then searches the database to obtain a changed phone number, billing information, routing, etc., and transmit a success response signal to the SSP 108. The SSP 108 transmits an answer signal to the destination switching station 106 before the change, and then provides the number change announcement to the calling subscriber (Sub. A) 102 via the calling station switching unit 104. An example of the announcement provided at this time is the same as the above.

Then, when the service user listens to the announcement and requests an incoming call to the changed phone number (that is, presses the # key), the SSP 108 transmits routing information to the destination country exchange 112 after the change, and after the change, the destination country exchange. 112 provides a ringing signal to the called party 114 and also provides a ringing back tone to the calling party 102.

After the receiver (Sub. C) 114 changes the receiver (Off-Hook) in response to the call signal, the destination station switch 112 provides an Answer signal to the SSP 108.

Through this process, the calling party (Sub. A; 102) and the called party (Sub. C) 114 are connected and placed in a call state.

If the calling party (or called party) puts down the handset after the end of the call (On-Hook), the calling party exchange (or called party exchange) sends a clearing (CLF) signal to the called party exchange 106 before the change, The destination exchange switch 106 transmits a call release (CLF) signal to the SSP 108, and the SSP 108 transmits an event notification to the SCP 110, and then releases the call to the destination country exchange 112 after the change ( CLF) signal.

Through this call recovery process, the connection between the calling party (Sub. A; 102) and the called party (Sub. C) 114 is released.

On the other hand, when the present invention is applied to the ISDN network, as shown in Figure 3, the calling subscriber (Sub.A), the calling station, the called station (before modification), the service switching switch (SSP), the service control system (SCP) Message is transmitted between the called party, the called party (after the change) and the called party (Sub.C).

1 and 3, when the calling party 102 forwards a call-up message to the calling station exchange 104, the calling party exchange 104 receives the IAM message containing the old telephone number before the change. Transfer to station exchange 106 to attempt incoming calls. Before the change, the destination exchange switch 106 sets the outgoing route to the SSP 108 if the call is the change phone number automatic guide service call, and the change phone number service identification number (SAC), area code (ARCD), old country code, and the like. Send the subscriber number (OLD-DN).

The SSP 108 provides the ANM message to the destination station 106 before the change according to the signaling procedure, forms an operation according to the intelligent network application protocol (INAP), and delivers it to the SCP 110. The SCP 110 interprets the received operation and then searches the database to obtain a changed phone number, billing information, routing, etc., and transmit a success response signal to the SSP 108. At this time, information about the old telephone number (Old-DN), new telephone number (New-DN), change date, service type, etc. is constructed in the database of SCP 110. SSP 108 forwards an answer (ANM) message to pre-change destination exchange (106), pre-change destination exchange (106) forwards an answer (ANM) message to originating exchange (104), and 104 transmits a Connect message to the subscriber. Therefore, the number change announcement is provided to the calling party 102 from the SSP 108 via the destination country exchange before the change and the calling station exchange.

Then, when the service user (ie, the calling party) requests an incoming call to the changed telephone number (ie, presses the # key to request an automatic call connection), the SSP 108 sends an IAM message to the destination country exchange 112 after the change. Routing information is transmitted through, and after the change, the destination station exchange 112 provides a set-up message to the called party. When an alerting message is received from the called party 102, after changing, the destination country exchange 112 provides a CPG (Alerting) message to the SSP 108, and a Connect message from the called party 114 is received. When received, the destination exchange switch 112 provides the ANM message to the SSP 108 after the change.

Through this process, the calling subscriber and the called subscriber are connected and placed in a call state.

If the calling party (or called party) provides a disconnect message to the calling party (or called party) exchange after the end of the call, the calling party (or called party) exchange sends a REL message to the destination exchange before the change. Forwarding, pre-change destination exchange 106 transmits an REL message to SSP 108, and SSP 108 sends an event notification to SCP 110 and then post-change destination exchange 112 Pass REL message to. After the change, the destination exchange 112 transmits a disconnect message to the called subscriber (Sub.C) 114, and after the change, the destination exchange 112 transmits an RLC message to the SSP 108, and the SSP 108 transfers the RLC message to the pre-change destination exchange 106 and the pre-change destination exchange 106 to the originating exchange 104, respectively.

Through such transmission line recovery process, the connection between the calling party 102 and the called party 114 is released.

As described above, according to the present invention, when an outgoing subscriber attempts to make a call to a telephone number before a change is made, the incoming exchange requests a change telephone number guide service to the service switching exchange (SSP), and accordingly, an intelligent network control system (SCP). This changed telephone number and date of change information is provided to the SSP 108 so that the SSP 108 may inform the changed number and date of change. In addition, the service user can listen to the announcement and then repeatedly listen to the announcement or change the number automatically, it is very convenient effect. If the service user selects automatic call connection, the calling subscriber automatically dials the changed phone number without having to dial again.

Claims (1)

The originating subscriber dials the previous telephone number and attempts to receive the call; Analyzing the incoming number of the exchange in the destination country before the change and transmitting the service identification number, the area code, the station number, and the subscriber number to the service switching exchange (SSP) if the subscriber automatically changes the phone number; A service switching exchange (SSP) and a service control system (SCP) forming an operation according to an intelligent network application protocol (INAP) to transmit routing and charging information; Providing, by the service switching switch (SSP), with a guide tone for the changed number and date and a guide tone for selecting an automatic call connection or repeat listening function; If the calling subscriber selects the automatic call connection, the service switching exchange (SSP) attempts to connect to the called station exchange after changing and connects the calling subscriber and the called subscriber; And And when the calling subscriber selects to listen repeatedly, the service switching switch (SSP) repeating the guide sound.