KR20070055720A - Priority telephone service system and method thereof - Google Patents

Abstract

      The present invention relates to a system and method for providing a priority call service for connecting an emergency call of an outgoing phone to a called phone, wherein the outgoing exchange receives a priority call request from the outgoing phone, and the called exchange receives the emergency call. Judge the state. When the called telephone is busy, the called exchange releases the existing channel and provides a priority call for an emergency call. This allows the caller to increase the call success rate with the intended recipient in special circumstances, such as an emergency call, and to reduce the waiting time for a call connection.

Preferred call, exchange, intelligent network

Description

Priority telephone service system and method

1 is a diagram showing a priority call service providing system according to a first embodiment of the present invention.

2 is a diagram illustrating an operation of a priority call service providing system according to a first embodiment of the present invention.

3 is a diagram illustrating a priority call service providing system according to a second embodiment of the present invention.

The present invention relates to a priority call service providing system and method, and more particularly, to a priority call service providing system and method for improving a call success rate of an emergency call.

In general, emergency telephone service is provided in the mobile communication network environment, which enables children, women and the elderly and others who are in an emergency situation to generate a call for help from the target of the phone number stored in the terminal by simple button operation. It is becoming. In addition, when a user such as an infant, adolescent, a disabled person, a patient, or an elderly person requests an emergency call on a communication terminal such as a landline phone, a mobile phone, or a PC, an emergency call network can be used to automatically connect and make an emergency call. The prior patent is filed in Korean Patent Application No. 2004-0016080.

In addition, the information to be notified by voice in the notification of the emergency call to other extension subscribers have been filed in the Republic of Korea Patent Application No. 199595-0007538.

However, due to the nature of the emergency call, the call waiting time from the emergency call request of the caller to the actual call connection with the receiver should be minimized, and the success rate of the call connection with the desired target should be maximized.

The above-mentioned conventional technology is a method of successfully making a single connection by automatically attempting a sequential connection when a call failure occurs when attempting an emergency call by storing a plurality of emergency call recipient lists in advance in order to increase the success rate of call connection. It is proposed a method of attempting a call to a large number of subjects in case of distress.

However, this conventional technique, when the status of the emergency call attempted receiver is busy, determines that the connection is impossible and attempts to connect a new destination, thereby delaying the call connection until the actual emergency call connection is made, which is an immediate and effective emergency. It is difficult to cope with the problem and the call success rate is not maximized.

In addition, a method of inducing a call transfer to an emergency call by notifying a user of a call state that an emergency call is requested or adding an identification number to a caller ID or requesting an emergency call connection by dividing a ring tone Conventional techniques, such as the like, do not maximize the success rate of call connection by giving the user the option of call connection, and there is a disadvantage that the waiting time for voice notification processing occurs.

The technical problem to be achieved by the present invention is to solve the conventional problems, even when the called state of the preferred caller is called, the existing call to release the existing channel and quickly connect the emergency call, emergency to the existing caller To provide a priority call service providing system and method for notifying release of communication due to a call request.

Priority call service providing system according to one feature of the present invention for solving this problem,

A priority call providing system that connects an emergency call from an outgoing phone to a called phone.

A first exchanger for transmitting a priority call message to a called telephone number of an emergency call when the calling telephone requests an emergency call to the called telephone;

A second exchanger that receives a priority call message of the first exchange, determines whether the called telephone is busy, releases a call currently on a call, and connects the call of the calling telephone and the called telephone; Include.

Priority call service providing system according to another feature of the present invention for solving this problem,

A priority call providing system that connects an emergency call from an outgoing phone to a called phone.

A first exchanger for receiving an emergency call to the telephone number of the terminating telephone when the calling telephone makes a request and forwards it to a designated exchange;

A service exchanger for receiving an emergency call request from the originating exchange and requesting that the originating telephone is a preferred calling service subscriber to the outside and forwarding the preferred calling message to the telephone number of the called telephone to the telephone number when the calling telephone is a preferred calling service subscriber;

A database storing information of service subscribers;

A service control system for retrieving the data at the request of the service exchanger, searching for whether the corresponding telephone number is a preferred call service subscriber, and transferring the result to the service exchanger;

A second exchange to receive the service exchange priority call message, to determine if the called telephone is busy, to release the current call if it is busy, and to connect the call of the calling telephone and the called telephone; .

Priority call service providing method according to another feature of the present invention for solving this problem,

A method of providing a priority call for connecting an emergency call of an outgoing phone to a called phone,

An originating exchange receiving a priority call request from the originating telephone;

Determining a state of the incoming telephone that is requested to make an emergency call;

If the called telephone is busy, releasing an existing channel and providing a priority call for an emergency call;

Notifying the telephone of the existing caller that the communication is released due to the emergency call request.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

1 is a diagram showing the configuration of a priority call service providing system according to a first embodiment of the present invention.

Referring to FIG. 1, the priority call service providing system according to the first embodiment of the present invention includes an originating exchange 110, a destination exchange 120, an exchange 130, and a database 140. Here, the originating exchange 110, the destination exchange 120 and the exchange 130 may be the same exchange as the exchange having the same function, or may be different exchanges. That is, when the caller, the called party and the caller are located in the area of one exchange, it may be one exchange. In the following description, however, the description will be focused on functions, so that the functions are divided into origination and reception.

When the calling telephone 110 requests an emergency call to the called phone 20, the calling switch 110 searches the database 140 to check whether the calling party is a priority call service subscriber and then sends a priority call message to the called phone number of the emergency call. Send it out. The destination exchange 120 receives the priority call message of the originating exchange 110, determines whether the call is in progress, and, if in a call, determines whether the destination phone 120 selects the call number selected as the priority call target. After retrieving and confirming, the current call is released, and the call of the calling phone 110 and the called phone 120 is connected. In this case, the checking procedure may be omitted as necessary. In addition, the voice guidance system 150 may inform the telephone 30 that is in a call through the switch 130 under the control of the destination switch 120 to indicate that the call is released due to a priority call.

Next, an operation of the priority call providing system according to the first embodiment of the present invention having the above configuration will be described with reference to FIG. 2.

2 is an operation flowchart of a priority call service providing system according to a first embodiment of the present invention.

Referring to FIG. 2, when a pre-service subscriber who is in an emergency situation or preferentially wants to make a call attempts a priority call using a predetermined button or key (SAC, Service Access Code) of the phone 10 (S1), The originating exchange 110 determines whether the caller subscribes to the priority call service from the service information data stored in the database 140 (S2).

If it is not a valid subscriber, the originating exchange 110 transmits a message for the service request error to the sender (S3). To this end, it is necessary to define a message that informs the destination exchange of a priority call request of an originating subscriber among communication protocols (No.7 signaling). And if necessary, guidance through the voice guidance system 150 is also possible.

On the other hand, in the case of a valid subscriber, the originating exchange 110 confirming the effective subscriber extracts a pre-registered preferred call destination number from the database 140 and transmits the preferred call request message to the destination exchange 120 (S4). .

The destination exchange 120 determines the phone state of the called party 20 (S5), and performs a general call connection procedure when the called party is in the standby state (S6).

On the other hand, when the telephone state of the incoming phone 20 of the called number is busy, the destination exchange 120 searches the database 140 to grasp the service information of the called number 20, and the called party is existing by the priority call Check whether or not a prior agreement on the release of the call (S7).

If the called party has not previously agreed on the release of the existing call by the preferred call, the called exchange 120 transmits a general busy signal to the calling phone 10 (S11). If necessary, the service request error may be voice guided using the voice guide system 150 (S3).

If the called party has previously agreed on the release of the existing call by the preferred call, the called exchange 120 may approve the preferred call between the called phone 20 and the calling phone 10 and connect the call to enable the call (S10). ). At this time, the destination exchange 120 releases the connection call to the telephone 30 of the existing caller who was busy with the incoming telephone 20 (S8), upon the release immediately by the emergency call request to the telephone 30 of the existing caller Notification through the voice guidance system 150 that the call is released (S9).

As described above, in the first embodiment of the present invention, an emergency call can be quickly connected even during a call if the caller or the called party agrees to the call first. And if necessary, emergency calls can be routed directly without prior consent.

In addition, the first embodiment may be variously modified, and an example using the dual intelligent network system will be described as the second embodiment as follows.

3 is a diagram illustrating a priority call providing system according to a second embodiment of the present invention.

Referring to FIG. 3, the preferred call providing system according to the second embodiment of the present invention includes an originating exchange 210, a destination exchange 220, an exchange 230, a database 140, a service control system 260, Service exchanger 270. Here, the source exchange 110, the destination exchange 120 and the exchange 130, as in the first embodiment, may be the same exchange as the exchange having the same function, or may be different exchanges. The originating exchange 110 sends this to the service exchange when the originating telephone 10 requests an emergency call to the called telephone 20. The service switch (SSP) 270 first transmits a call request to the service control system 260, and the service subscriber is identified and sends a priority call message to the called telephone number of the emergency call. The service control system 260 searches the database 140 to determine whether the subscriber is a priority call service and informs the called party of the called number. The destination exchange 120 receives the priority call message of the outgoing exchange 110, determines whether it is in a call, releases the call currently being called, if the call is in progress, and the outgoing phone 110 and the destination phone 120. Connect the arcs of. At this time, if necessary, the incoming call 120 may request the service control system to determine whether the incoming call number is selected as the priority call object, search the database 140, and then connect the preferred call. The voice guidance system 150 may notify the telephone 30 that is busy under the control of the service exchanger 270 or the destination exchanger 220 through the switch 230 to release the call due to the priority call.

Next, the operation of the priority call providing system according to the second embodiment of the present invention having the above configuration will be described.

The pre-service subscriber who is in an emergency or preferentially calls, attempts a priority call to the telephone 20 by using a shortcut key or a button defined with a SAC (Service Access Code) (S31).

Then, the originating exchange 210 routes the priority call request to the service switch 270 (SSP) of the intelligent network system (S32), and the service exchange 270 is the service control point (SCP) 260. This is triggered by the service (S33), the service control system 260 determines the validity of the service request of the outgoing call.

When the validity is determined, the service control system 260 first transmits the call approval information and the called number to the service exchanger 270 (S34), and the called number and the preferred call request message to the call exchanger 220 at the service exchanger 9270. The priority call is requested by sending (S35).

Thereafter, the destination exchange 220 connects the priority call after receiving the priority call request message (S36), and releases the existing call call and provides the announcement broadcast (S37) as in the first embodiment.

In addition, if necessary, the priority call approval target number by the called party, that is, the caller's number may be input to a separate terminal or a phone in advance, and N caller numbers for one caller's number may be stored in the database 240.

As described above, in the embodiment of the present invention, by giving a priority call right to an outgoing call, even if the called party is in a call, the existing call is released and the caller can immediately call the called party so that the caller can effectively deal with an emergency. .

The embodiments of the present invention described above are not implemented only through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

As described above, in an embodiment of the present invention, in a special situation such as an emergency call, the caller provides a priority call providing system and method having the advantage of increasing the call success rate with the intended recipient and reducing the waiting time for call connection. can do.

Claims (10)

A priority call providing system that connects an emergency call from an outgoing phone to a called phone. A first exchanger for transmitting a priority call message to a called telephone number of an emergency call when the calling telephone requests an emergency call to the called telephone; A second exchanger that receives a priority call message of the first exchange, determines whether the called telephone is busy, releases a call currently on a call, and connects the call of the calling telephone and the called telephone; Priority call service providing system comprising. The method of claim 1, Further comprising a database for storing the subscriber's priority call service subscription information, The first switching service searches the database to determine whether the owner of the calling telephone has subscribed to the priority calling service, and if the service is subscribed, sends the priority calling message to the called number. Provide system. The method of claim 2, The second switch searches the database to determine whether the owner of the called telephone has previously registered to receive the preferred call of the calling telephone, and connects the call with the calling telephone. system. The method according to any one of claims 1 to 3, And the first exchanger and the second exchanger are the same exchanger. A priority call providing system that connects an emergency call from an outgoing phone to a called phone. A first exchanger for receiving an emergency call to the telephone number of the terminating telephone when the calling telephone makes a request and forwards it to a designated exchange; A service exchanger for receiving an emergency call request from the originating exchange and requesting that the originating telephone is a preferred calling service subscriber to the outside and forwarding the preferred calling message to the telephone number of the called telephone to the telephone number when the calling telephone is a preferred calling service subscriber; A database storing information of service subscribers; A service control system for retrieving the data at the request of the service exchanger, searching for whether the corresponding telephone number is a preferred call service subscriber, and transferring the result to the service exchanger; And a second exchanger for receiving the service switch priority call message, determining whether the called phone is busy, releasing a call currently on a call, and connecting a call of the calling phone and the called phone. Priority call service provision system. The method of claim 5, The second switch searches the database to determine whether the owner of the called telephone has previously registered to receive the preferred call of the calling telephone, and connects the call with the calling telephone. system. A method of providing a priority call for connecting an emergency call of an outgoing phone to a called phone, An originating exchange receiving a priority call request from the originating telephone; Determining, by the destination exchange, the state of the incoming telephone that is requested to make an emergency call; If the called phone is busy, the called exchange releases the existing call path and provides a priority call for an emergency call. The method of claim 7, wherein And the terminating exchange notifies the telephone of the existing caller that the communication is released due to the emergency call request. The method of claim 7, wherein At the originating exchange receiving the priority call request from the originating telephone, The originating exchange determining whether the originating telephone is a priority call service subscriber; If it is not a preferred call service subscriber, notifying the calling telephone of a service request error. The method according to any one of claims 7 to 9, If the called phone is busy, the called exchange releases the existing channel and provides a priority call for an emergency call; And the terminating exchange further checks whether the terminating telephone has previously approved the information that the terminating telephone may connect the preferred call.

Images