KR20010011747A - Method for automatically connecting a call in an intelligent network - Google Patents

Abstract

PURPOSE: A method for automatically connecting calls in an intelligent network is provided to automatically connect a call between a receiving subscriber and an originating subscriber when the receiving subscriber completes a telephone conversion, without the originating subscriber picking up a telephone receiver for a call waiting service when the receiving subscriber talks over the phone, so as to improve a call waiting service function of an intelligent network subscriber. CONSTITUTION: If an intelligent network service call signal is requested, a service switching point(SSP) checks whether a receiving subscriber corresponding to the service call signal talks over the phone. If so, the SSP transmits an announcement message and an automatic connection selecting message to an originating subscriber. The announcement message informs the originating subscriber of an off-hook state of the receiving subscriber. The automatic connection selecting message selects whether an automatic connection is performed after completing a call. If an automatic connection request key signal is inputted from the originating subscriber, by responding to the automatic connection selecting message, the SSP stores a number of the originating subscriber and a number of the receiving subscriber in a memory, and monitors the off-hook state of the receiving subscriber. If the receiving subscriber completes a call, the SSP reads the stored numbers to connect a call between the originating subscriber and the receiving subscriber.

Description

How to automatically connect a call in an intelligent network {METHOD FOR AUTOMATICALLY CONNECTING A CALL IN AN INTELLIGENT NETWORK}

The present invention relates to a method for automatically connecting a call in an intelligent network, and in particular, when an incoming subscriber is busy in an intelligent network, a call in an intelligent network that can automatically connect a call with an outgoing subscriber after a call of the called subscriber is completed. It relates to an automatic connection method.

In general, an intelligent network is a service network that processes, provides, and manages various new services quickly and easily. The intelligent network is composed of transport network layer, signaling network layer, and service network layer, and service network layer is weakly referred to as service control point (hereinafter referred to as SCP). It consists of a service management system (Service Management System), the signaling network hierarchy is composed of a signaling transfer point (Signalling Transfer Point), the transmission network hierarchy is composed of a service switching point (hereinafter referred to as SSP).

Services provided through the intelligent network configured as described above include free phone service, credit call service, premium rate service, teleconferencing service, and virtual private network. Service (Private Virtual Network Service), Personal Number Service, Televoting Service, Emergency Number Service, Voice Mail Service, Electronic Mail Service Services, Call Me Card Service, etc. are provided.

On the other hand, when the call waiting service related to the present invention among the various services in the conventional general telephone network attempts to call the called subscriber registered in the call waiting service, if the called subscriber is busy, Send a busy tone to alert you that another call is coming. At this time, the calling subscriber should be in a hook on state, i.e., the receiver should be held continuously, and the called subscriber will make a call between the called subscriber and the calling subscriber by a hook switch operation. That is, in the conventional call waiting service, an originating subscriber who has attempted to make a call when the called party is busy has to be inconvenient to keep holding the handset.

Accordingly, the present invention has been made in view of the above point, in the intelligent network that can automatically make a call with the calling subscriber after the call of the called subscriber even if the calling subscriber puts down the handset while the called subscriber is busy The purpose is to provide a method of automatic call connection.

In order to achieve the above object, the present invention provides a call automatic connection method for automatically connecting a call with an originating subscriber when an incoming subscriber is busy in an exchange capable of an intelligent network service. A first step of checking whether a called subscriber corresponding to the request signal is busy; A second step of transmitting, when the called subscriber is busy, an announcement message indicating that the called subscriber is busy and an automatic connection selection message for selecting whether to connect automatically after the call is terminated; When the automatic connection request key signal is input from the calling subscriber in response to the automatic connection selection message, storing the calling subscriber's number and the called subscriber's number in a memory means, and monitoring the busy state of the called subscriber. Three steps; And a fourth step of connecting the call between the calling party and the called party by reading the calling party number and the called party number stored in the memory means when the call of the called party is terminated. To provide.

1 is a block diagram of an intelligent network switching system for performing the method according to the present invention;

2 is a timing chart according to a call automatic connection during call waiting in an intelligent network for performing the method according to the present invention;

3 is a flowchart illustrating a call automatic connection process in an intelligent network according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

110: calling subscriber 120: intelligent network service switch (SSP)

130: Sub Control System (SCP) 140: Intelligent Information System (IP)

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

1 is a block diagram of an intelligent network switching system for performing a method according to the present invention, the calling subscriber 110, an intelligent network service switching point (hereinafter referred to as SSP) 120 belonging to a transmission network hierarchy in an intelligent network, In the intelligent network, a service control system (Service Control Point (hereinafter abbreviated as SCP) 130) belonging to the service network hierarchy, and Intelligent Information System (Intelligent Peripheral, abbreviated as IP) 140 is included.

The SSP 120 is an electronic exchange that connects the service user with the intelligent network. The SSP 120 recognizes the intelligent network service call from the call of the telephone user and notifies the SCP 130 of the call. When receiving information required for intelligent network service call processing from SCP 130, it connects a call to a desired destination, and records a call time and an incoming / outgoing call number in an internal storage means (not shown).

SCP 130 has service logic and data that manages the entire process of intelligent network service. It can provide various intelligent network services with one SCP or have different SCPs for each service.

The IP 140 includes resources such as customized announcement, speech recognition, speech synthesis, voice recording, dual tone multi-frequency (DMF) digit collector, protocol converter, and the like. Provides flexible interaction, where IP can be connected to one or more SSPs or SCPs through a signaling network.

FIG. 2 is a timing chart showing the flow of a message signal of each component according to a call automatic connection process in a busy state in an intelligent network according to a preferred embodiment of the present invention. Referring to FIG. 1 and FIG. The detailed description is as follows.

First, when the calling subscriber 110 attempts an intelligent network service call for a call with any called subscriber, the SSP 120 performs an initial detection point (IDP) process to call the SCP 130. Inform the procedure. In addition, SCP 130 generates an Request Report BCSM (Basic Call State Model) event (RRBE), which is an operation for reporting an event according to a caller's busy state, and transmits it to the SSP 120, and again. The calling subscriber 110 transmits a CONN (Connect) operation to connect the call with the called subscriber (not shown) corresponding to the incoming call number to the SSP 120.

Accordingly, the SSP 120 attempts to connect a call with the called party. If the called party is currently busy, the SSP 120 sends an event indicating that the called party is busy. To SCP (130). In addition, the call of the calling subscriber 110 is maintained in the network for as long as the SCP 130 requires by sending a Hold Call In Network operation to the SSP 120 to maintain the call during call setup.

Subsequently, the SCP 130 transmits a Request First Status Monitor Report (RFSMR) operation to the SSP 120 to monitor the resource status (idle status) of the called subscriber, and then generates an Establish Temporary Connection (ETC) operation. This ETC operation is transmitted to the SSP 120, which is an operation for establishing a connection between an intelligent network service user and a special resource located in the intelligent network peripheral (for example, IP 140). That is, the SCP 130 transmits the ETC operation to the SSP 120, thereby enabling the connection between the calling subscriber 110 and the IP 140.

On the other hand, when the calling subscriber 110 and the IP 140 are connected through the SSP 120 based on the ETC operation as described above, the IP 140 sends a predetermined guidance message (for example, indicating that the called subscriber is busy). For example, the called party is busy and transmits to the calling subscriber 110 through the SSP 120.

In addition, SCP 130 transmits a Prompt Collect User Information (PCUI) operation to request digit collection from an originating subscriber, and IP 140 again performs a method for automatically connecting a call according to the present invention. A predetermined guidance message (for example, press 1 to hang up) is sent to the calling subscriber 110.

At this time, if the calling subscriber 110 presses '1' according to the guidance message provided from the IP 140, SCP 130 omits the number of the calling subscriber 110 and the called subscriber's number in response. After storing in the internal memory means, the connection to the IP 140 is released by transmitting a DFC (Disconnect Forward Connection) operation to the SSP 120.

On the other hand, through this process, the calling party number requesting the call attempt in the called party busy state is stored in the internal memory means of SCP 130. If an attempt is required, SCP 130 continues to store the numbers of the plurality of calling subscribers in the internal memory means through the process described above, and the same calling subscriber number is duplicated and entered into the memory means of SSP 130. If so, record only one calling party number.

Through this process, the calling party 110 and the called party (not shown) number are stored in the memory means in the SCP 130, and when the call of the calling party 110 is terminated, the SSP 120 continues to receive the called party. In monitoring the status, if the call of the called party is terminated, the SSP 120 notifies SCP 130 of the current state (idle state) of the called party.

In response, SCP 130 reads the calling party number stored in the internal memory means and generates an ICA (Initiate Call Attempt) operation to attempt call establishment with calling party 110. At this time, if a plurality of calling party numbers exist in the internal memory means of SCP 130, call setting is attempted sequentially (ie, FIFO processing) based on the input order.

On the other hand, when the calling subscriber 110 receives the receiver by the ring signal according to SCP 130's attempt to set up the call, SCP 130 transmits the ETC operation to the SSP 120 again so that the calling subscriber 100 and the IP ( 140, the IP 140 generates a predetermined guide message (for example, 'making a scheduled call') informing the call connection according to the call automatic connection service and transmits it to the calling subscriber 110. . That is, in order to prevent confusion of the calling subscriber 110 who receives the ring signal and receives the call, a predetermined guide message indicating that the reservation is connected by the call automatic connection service is generated so that the calling subscriber 110 can recognize it. do.

Subsequently, SCP 130 transmits the DFC operation to the SSP 120 to release the connection with the IP 120, and again generates an ICA operation for the called subscriber number stored in the internal memory means and sends it to the SSP 120. do. In addition, an operation for call connection between the calling party and the called party, that is, a Move Call Segment operation, is performed to move the call segment from the source call segment combination to the target call segment combination, and then transmits a Move Leg operation. By transferring the leg from the call segment of the call to the other call segments associated with it, the calling party connects the calling party with the called party.

As a result, when a call is attempted by the calling party 110, when the called party is busy, the calling party 110 memorizes the telephone number of the calling party 110 and when the call of the called party is terminated, the call between the calling party 110 and the called party is automatically called. Will be connected.

3 is a flowchart illustrating a process of performing a method for automatically connecting a call in an intelligent network according to a preferred embodiment of the present invention. The process of the present invention based on a timing chart as shown in FIG. 2 will be described in detail. As follows.

When an intelligent network service call is attempted from an originating subscriber 110 in an intelligent network as shown in FIG. 1 (step 301), the SSP 120 performs a call processing procedure and attempts to connect a call with a called subscriber (not shown). First, the status of the called subscriber is determined (step 303). And, as a result of the determination, if the called subscriber is not currently busy (idle state), a general call processing procedure is performed to connect a call between the calling subscriber 110 and the called subscriber, and vice versa, when the called subscriber is busy. (Step 305) via IP 140, a predetermined announcement message indicating that the called party is busy and a guide message for automatic call connection according to the call waiting service (for example, 'the called party is busy. Press 1 to wait '') is transmitted to the calling subscriber 110.

Then, the SSP 120 checks whether or not a digit is input from the calling subscriber 110 (step 311). If the calling subscriber 110 has a digit according to the call auto connection service in a busy state (for example, '1' When the call is terminated without entering 'number', the call is released from the calling party 110 and, on the contrary, the calling party 110 presses 1 according to the guidance message provided from the IP 140 and then makes a call. Upon termination, SCP 130, in response, stores the number of originating subscriber 110 and the number of called subscriber in internal memory means, not shown (step 315).

On the other hand, after the calling party 110 is stored in the call to the incoming subscriber calls through this process, if the call attempt is continuously requested from a number of other calling subscribers, through each process as described above Numbers for multiple originating subscribers are continuously stored in internal memory means, and if the same originating subscriber number is duplicated and entered into the memory means of SSP 130, only one originating subscriber number is recorded, i.e., no additional rewriting. Do not.

On the other hand, if the originating subscriber 110 number requesting the call attempt in the called subscriber busy state is stored in the internal memory means of the SCP 130 through the above-described step 315, the SSP 120 determines the state of the called subscriber. (step 317), if the called party's call is terminated (step 319), SSP 120 notifies SCP 130 of the current state of the called party (idle state) and internally. A call connection is attempted with the calling subscriber 110 by reading the calling subscriber 110 number stored in the memory means (step 321).

When the call of the calling subscriber 110 is connected (step 323), the SSP 120 again informs the call connection according to the call automatic connection service in the busy state through the IP 140 (for example, For example, a 'scheduled call is made' is generated and transmitted to the calling subscriber 110 (step 325), and again a call connection is made to the called party number stored in the internal memory means of SCP 130 (step 327), when the call of the called subscriber is connected (step 329), the call is made possible by connecting the call between the calling subscriber 110 and the called subscriber (step 231).

On the other hand, if the call is terminated after the call between the calling party 110 and the called party is connected through this process, SCP 130 again checks whether there is another calling party number stored in the internal memory means and SSP (120) ) Repeats the process after step 321 described above to connect the call between the other calling party and the called party.

As described above, according to the present invention, when the called subscriber is busy, the calling subscriber does not need to continuously hold the handset for the call waiting service. In addition, there is an effect that can improve the standby service function of the intelligent network subscribers, thereby improving the overall performance of the intelligent network system.

Claims (4)

A call automatic connection method for automatically connecting a call with an originating subscriber when a called subscriber is busy in an exchange capable of an intelligent network service, A first step of checking whether a called subscriber corresponding to the call request signal is busy when an intelligent network service call request signal is input; A second step of transmitting, when the called subscriber is busy, an announcement message indicating that the called subscriber is busy and an automatic connection selection message for selecting whether to connect automatically after the call is terminated; When the automatic connection request key signal is input from the calling subscriber in response to the automatic connection selection message, storing the calling subscriber's number and the called subscriber's number in a memory means, and monitoring the busy state of the called subscriber. Three steps; And a fourth step of connecting the call between the calling party and the called party by reading the calling party number and the called party number stored in the memory means when the call of the called party is terminated. . The method of claim 1, wherein the third step, The intelligent network further includes the step of repeating the operation from the first step if the number of the called subscriber is stored and an intelligent network service call request signal is input from another calling subscriber while monitoring the busy state of the called subscriber. Automatic call connection in. The method of claim 1, wherein the fourth step, If there are a plurality of calling party numbers corresponding to the called party, as a result of reading the calling party number and the called party number stored in the memory means, the call between the called party and the calling party based on the order stored in the memory means Call automatic connection method in an intelligent network, characterized in that to sequentially connect. The method of claim 1, wherein the fourth step, When the call of the called party is terminated, reading the stored calling party number and connecting a call to the calling party; When the call to the calling subscriber is connected, a call connection guide message indicating that the call is being connected according to the calling party's automatic connection request is transmitted to the calling subscriber, and the called subscriber number is read to establish a call connection to the calling subscriber. A second process to try; If the call to the called party is connected, the call automatic connection method in the intelligent network, characterized in that the third step of connecting the call between the calling party and the called party.