KR100302365B1 - Incomplete call back connection method - Google Patents

Abstract

The present invention relates to an incomplete call back access method using an intelligent network, and to a call for which the incoming call is unsuccessful due to a special condition (for example, busy or no answer) for all general telephones including an intelligent network service. Regarding a technology that allows a called party to make a reverse call and make necessary calls, a subscriber who subscribes to a service provided by the present invention can conveniently receive a call without receiving a separate facility. It is possible to make a call, and from a network operator's point of view, it is possible to realize economical and efficient service by intensive service control method rather than providing distributed service for each exchange. to provide.

Description

Incomplete call back connection method

The present invention relates to an incomplete call reverse access method using an intelligent network, wherein a called party's subscriber is reversed to a call for which an incoming call is unsuccessful due to a special condition (for example, busy, no answer), etc. It relates to a technology that attempts to connect and make necessary calls.

Among the services provided by the telephone currently being used, there is a method of processing by using a kind of voicemail when the called party is busy or unanswered. However, voicemail has a lot of unfamiliar users and a rejection about leaving a message on the machine. In some cases,

In addition, voicemail has to be applied separately if the public type, and if there is a private type (phone terminal attachment type) there is a problem to purchase the device.

If the voicemail is not connected, this call is treated as an incomplete call, and the caller attempts to connect from time to time in case of an emergency, but forgets or does not retry if it is not.

On the contrary, there is no method for the caller to make a reverse connection to the missed call without attaching a special additional device.

The present invention, in view of the above-mentioned problems and requirements as described above, manages information about a call that is not connected by a special condition so that a caller can later connect to a caller who has attempted to call him. It aims to satisfy subscribers and increase network utilization.

1 is a schematic configuration diagram of an intelligent network service system to which the present invention is applied.

2 is a flowchart illustrating a call processing process of an incomplete caller according to the present invention.

3 is a flowchart illustrating a process in which called party B reverse-connects an incomplete call according to the present invention.

<Description of Symbols for Major Parts of Drawings>

1: intelligent network service processing system (SCP) 2: common line signaling network

3: intelligent network switch (SSP) 4, 5: single station switch (LE)

6, 7: subscriber's phone

According to the method of the present invention for achieving the above object, when a caller attempts to access a caller, the caller's calling number is treated as a reverse access call when the caller's current state is not available. It provides a reverse access service that allows the caller to call the caller through the called party.

The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a schematic configuration of a system to which an incomplete call back access method implemented by the present invention is applied, as shown in FIG. 1, is provided from an intelligent network service user or a general telephone subscriber's telephone 6 using an outgoing telephone. An originating end-station exchanger (4) for receiving an outgoing call;

A destination side end station exchanger 5, to which the end station exchange 4 is connected via a telephone network;

An incoming telephone (7) connected to the single station exchange (5);

An intelligent network exchanger (3) connected to the called party end exchange (5) to transmit an intelligent network service call;

A common line signal network (2) connected to the intelligent network switch (3) for delivering service control information;

It is configured to include an intelligent network service processing system (1) connected to the common line signal network (2) to perform a function of controlling a service call in the network dimension.

The process of reverse connection of an incomplete call by applying the present invention to the intelligent network system configured as described above will be described with reference to the following flowcharts.

2 is a flowchart illustrating a call processing process of an incomplete caller. When the caller A calls the called party B, the calling party end exchange 4 detects it and connects to the called party end exchange 5 to which the called party B is connected. The destination terminal exchange 5 analyzes the information on the subscriber (recipient B) stored in the exchange and confirms that the subscriber (recipient B) is the subscriber who wishes to reverse access. (A1);

In the step A1, if it is the reverse access user, it is determined whether the current state of the subscriber B belongs to a special situation, that is, busy or unanswered, and if the normal state is normal, normal call processing is performed. Second step A2;

As a result of the determination, in the case of a busy or no answer, the virtual network switch 3 connects the call to the intelligent network switch 3 so that the intelligent network switch 3 recognizes the reverse access information processing as the desired call. Step 3 (A3);

The intelligent network switch 3 converts the contents of the transferred call into the message No. 7, which is a common line signal, and transmits it to the intelligent network service processing system 1 through the common line signaling network 2. The information transmitted at this time includes the calling party A's calling number and the called party B's called number ---- the fourth step (A4);

Then, the intelligent network service processing system 1 analyzes the above information received from the intelligent network exchanger 3, discards unnecessary information (eg, international call, public telephone call, etc.) and stores only valid information in the memory, and at the same time, the intelligent network Notify the exchange 3 that it has performed incomplete call processing on the caller of caller A, and then terminate.

The intelligent network switch (3) receiving the signal sends an appropriate announcement to the caller A or sends a signal (busy tone or ding-dong) as a signal of the current called party B ---- the sixth step (A6);

Through the above process, even if the caller's call is not currently connected, the called party is in a state capable of making a call back.

3 is a flowchart illustrating a process in which called party B reverse-connects an incomplete call according to the present invention. When called party B (in this process, the caller) dials a 'specific intelligent network access number' (for example, 1234), The end-station exchanger 5 to which the call is connected recognizes that the call is an intelligent network call and connects to the intelligent network switch 3 ---- first step (B1);

The intelligent network switch (3) converts the information about this call into a common line signal (No. 7) message and transmits it to the intelligent network service processing system 1 through the common line signal network (2).

At this time, the information transmitted by the intelligent network switch 3 includes the calling number (this number is the telephone number of the called party B, which is necessary information to check whether there are people calling the called party B) and the special number (reverse access information check). Number) requesting information is included in the second step (B2);

After receiving the information, the intelligent network service processing system 1 checks whether information on the same number is stored among the stored information using the calling number as a key among the inputted information. It is determined whether the access information exists.

If there is no stored information as a result of the determination, the announcement is sent to the current caller (called party B) indicating that there is no reverse access information and terminates ---- the third step (B3);

As a result of the determination, if the stored information exists, it transmits the reverse access number (which is the telephone number of the caller A who made the call in FIG. 2) to the intelligent network switch 3 together.

At this time, the intelligent network service processing system 1 analyzes whether or not the number belongs to a long distance code and transmits the reverse access number ---- the fourth step (B4);

The intelligent network exchange 3 receiving the call determines whether the currently received call corresponds to a long distance call, and if it is a long distance call, checks whether to make a call to the caller (called B) and connects the call (caller A of FIG. 2). And caller B) or terminates, and connects the call immediately if it is not a long distance call ---- the fifth step (B5);

Performing the above method through the above-mentioned intelligent network is the most preferable method, and if it is not the intelligent network, a switching system having a means for storing the calling party's calling number and a means for accepting the called party's reverse connection request Any number can be provided.

As described in detail above, the present invention allows a subscriber to subscribe to a service provided by the present invention to conveniently try to make a call without receiving a separate facility, and from a network operator's point of view, distributed by a single station. It is possible to realize economical and efficient service by intensive service control method rather than service provision, and it provides the advantage of ease of use because the service usage method is the same even though the exchange type is different.

In addition, a preferred embodiment of the present invention is disclosed for the purpose of illustration, those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following claims You will have to look.

Claims (4)

When a call connection request from a caller to a specific called party is input, it is determined whether the called party is in a state where the call cannot be made, and when the call is not available, the caller's number is automatically stored as a reverse call. 1 course; And a second process of automatically connecting a call between the calling party and the called party according to whether or not the call is stored when a search request is inputted from the called party to the called party number in the state of storing the called back connection. Incomplete call back connection method characterized by. The method of claim 1, In the first step, the reverse access call processing step may include: a first step of assigning a virtual code to recognize a signal requested by the caller as a call connection as a call for reverse connection; An incomplete call, comprising: analyzing a caller call connection request signal to which the virtual code is assigned; selecting a signal for a reverse access service; and extracting and storing a caller number and a called party number from the signal; Reverse connection method. The method of claim 1, The second step may include: a first step of searching whether a called number identical to the called party number is stored when a search request is input from a called party as a call stored as a reverse access call; Extracting a reverse access number stored together with the called number if the same number exists as the search result; A third step of automatically connecting a call between a subscriber of the reverse access number and the called party by attempting to connect to the extracted number; And a fourth step of terminating after an announcement broadcast indicating that there is no reverse access call if there is no identical number as a result of the search. The method of claim 3, wherein In the third step, when the call is connected between the reverse access call and the called party, the stored reverse access number is analyzed and if the call corresponds to a long distance call, the subscriber checks whether the call is connected to the subscriber who is currently attempting reverse access, and then connects the call. Incomplete call back connection method characterized in that the termination.