KR20080065408A - Method of controlling call-waiting and communications network switching system and communication terminal for operating the method - Google Patents

Abstract

A communication network exchange system for controlling the waiting during a telephone call, a communication terminal and a method for the same are provided to set the waiting service during the telephone call according to the priority order of the transmitters set by a user previously. A database(262) records the call priority information relating to plural caller's IDs corresponding to the subscriber terminal information. In the state that the call connection between the first transmission terminal and the receiving terminal is maintained, a service control member(261) reads out and compares the call priority information of the first and second transmission terminals. When the call priority information of the first transmission terminal is higher than that of the second transmission terminal, the service control member transmits the call impossible information to the second transmission terminal. The communication system includes an exchange for performing a call connected between the first transmission terminal and the receiving terminal.

Description

TECHNICAL FIELD OF CONTROLLING CALL-WAITING AND COMMUNICATIONS NETWORK SWITCHING SYSTEM AND COMMUNICATION TERMINAL FOR OPERATING THE METHOD}

1 is a diagram showing an example of the overall network configuration of a communication network system that can be implemented during the call waiting service according to the present invention.

2 is a block diagram showing a simplified configuration of a network system according to a case where a call waiting service of the present invention is implemented in a mobile communication network.

3 is a diagram illustrating a database structure of a call waiting control system according to an exemplary embodiment of the present invention.

Figure 4 is a flow chart illustrating the flow of the call waiting control method of a communication network switching system according to an embodiment of the present invention.

FIG. 5 is a flowchart illustrating a method for controlling waiting during a call in a network switching system according to another exemplary embodiment of the present invention. FIG.

6 is a flow chart showing the flow of the call waiting control method of the network switch system according to another embodiment of the present invention.

7 is a diagram illustrating a configuration of a communication terminal implementing a call waiting control method according to another embodiment of the present invention.

8 is a flowchart illustrating a method for controlling waiting during a call in a communication terminal according to another exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

210: first calling terminal 220: second calling terminal

230: calling party MSC 240: called party MSC

250: called terminal 261: service control unit

262: Database 263: Database Management

The present invention relates to a call waiting control system, a call waiting control terminal, and a method thereof of a communication network system, and more particularly, when a call connection request is made to a second calling terminal from a called terminal talking to a first calling terminal. The call priority of the second calling terminal is compared with the call priority of the first calling terminal, which is previously set by the called terminal user. 2 relates to a call waiting control system, a call waiting control terminal, and a method of a communication network system informing that a call connection request is received from a calling terminal.

As the communication service market expands, various additional services are developed and widely used in addition to the original call connection service. The additional communication service includes providing a call connection request of the other calling terminal to the called terminal when a call connecting request is received from another calling terminal to a called terminal in communication with a specific calling terminal, thereby selecting the called terminal user. The call waiting service for switching call access is representative.

The call waiting service has been mainly implemented through mobile communication terminals, but is now widely implemented in wired terminals using PSTN as well as mobile communication terminals.

As such, the telecommunications service market is growing day by day, and its scale is growing rapidly, while the side effects such as advertisement calls and spam messages are also increasing in severity. In particular, while making a business-critical call, if anyone receives a spam call to the waiting service during the call, everyone will agree that it can cause a big disruption to the work.

In addition, even if the incoming call to the waiting service is not a spam call or an advertising call, the business disturbance caused by the non-trivial small talk from a family member, lover, or friend is stressed. May cause.

In response to this problem, the call waiting service can be implemented by discriminating users according to the caller's priority set in advance, so that the waiting call can be prevented in advance from disturbing the current call due to the less important call. Development of services is required.

The present invention has been made to improve the prior art as described above, by setting the execution of the call waiting service to discriminate in accordance with the priority of the caller set in advance by the user, the call waiting service according to the user's intention It is an object of the present invention to provide a call waiting control system, a call waiting control terminal, and a method thereof.

In addition, the present invention gives priority to the current call only by simple key input or feature code input when the content of the call with the low priority caller is important, thereby causing an interruption in the current call due to the waiting service. It is an object of the present invention to provide a call waiting control system, a call waiting control terminal, and a method for preventing the work in advance.

In addition, the present invention, even if the caller is a low-priority caller when the caller requests a call connection by inputting preset personal identification number (PIN) information, the caller recognizes this as an emergency call, so that the waiting service subscriber during the call It is an object of the present invention to provide a call waiting control system, a call waiting control terminal, and a method for preventing an error of not receiving an emergency call.

In addition, the present invention implements such a call waiting service to subscribers of the call waiting service of the existing wired / wireless communication network, thereby minimizing the possibility of interruption of the call from the customer's point of view and creating profits for the service operator according to the new communication service. It is an object of the present invention to provide a call waiting control system, a call waiting control terminal, and a method thereof.

In order to achieve the above object and solve the problems of the prior art, in the call waiting control method of the communication network switching system according to the present invention, call priority information for a plurality of caller ID (caller ID) corresponding to the subscriber terminal information is recorded; Maintaining the compiled database; When a call connection request for the called terminal is received from the second calling terminal while the call connection between the first calling terminal and the called terminal is maintained, the call of the first calling terminal set corresponding to the called terminal from the database. Reading priority information and call priority information of the second calling terminal; Comparing call priority information of the first calling terminal with call priority information of the second calling terminal; And comparing the call priority of the first calling terminal with a higher priority than the calling priority of the second calling terminal, so that the call impossible information is transmitted to the second calling terminal. .

In addition, the standby control method for communication of the communication terminal according to the present invention, the method comprising the steps of: maintaining a memory means in which a call priority information table including call priority information corresponding to each of a plurality of other communication terminals; Maintaining a call connection with a first originating terminal; When receiving a call connection request of a second calling terminal from a switching system, reading call priority information of the first calling terminal and call priority information of the second calling terminal from the call priority information table; Comparing call priority information of the first calling terminal with call priority information of the second calling terminal; And rejection information of the call connection request of the second calling terminal to the switching system when the call priority of the first calling terminal is higher than the calling priority of the second calling terminal. Characterized in that it comprises the step of transmitting.

In addition, the waiting control system according to the present invention includes a database in which call priority information for a plurality of caller IDs is recorded corresponding to subscriber terminal information; And comparing the call priority information of the second calling terminal and the call priority information of the first calling terminal with the call terminal while the call connection is maintained between the first calling terminal and the called terminal from the database. And a service control unit which controls to transmit no call information to the second calling terminal when the call priority of the first calling terminal is higher than the calling priority of the second calling terminal as a result of the comparison. The system may be configured to perform a call connection between the first calling terminal and the called terminal and to receive a call connection request for the called terminal from the second calling terminal, for the call connecting request of the second calling terminal. Transmits information to the service controller, and under the control of the service controller Group characterized by including a switch for transmitting a call information not to the second outgoing terminal.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a diagram showing an example of the overall network configuration of a communication network system that can be implemented during the call waiting service according to the present invention.

In the call waiting service according to the present invention, during a call connection between the first calling terminal 110 and the called terminal 130 or 140, the second calling terminal 111 requests a call connection to the called terminal 130 or 140. May be implemented. The calling terminal and the called terminal according to the present invention are concepts including both a mobile communication terminal and a wired terminal. However, FIG. 1 illustrates a case where the first calling terminal 110 and the second calling terminal 111 are mobile communication terminals, and the called terminal 130 is also implemented as a mobile communication terminal.

The call connection between the first calling terminal 110 and the called mobile terminal 130 may include a first calling base station 121, a calling mobile switching center (MSC) 122, a home location register (HLR) 123, The destination MSC 124, the visitor location register 125, and the destination base station 126 may be configured. In addition, the call connection between the first originating terminal 110 and the destination wired terminal 140 is the first originating base station 121, the originating MSC 122, the Inter-Connection Gateway (ICG) 127, and the PSTN (Public). Switched Telephone Network (128).

During a call connection between the first calling terminal 110 and the called mobile terminal 130, when the second calling terminal 111 requests a call connection to the called mobile terminal 130, that is, the called mobile terminal ( 130) When making a call to the user, the call connection request from the second originating terminal 111 is transmitted to the destination MSC 124 via the second originating base station 129 and the originating MSC 122.

In this case, the destination MSC 124 inquires of the SCP (Service Contorl Point) 151 whether the user of the terminating mobile communication terminal 130 is a subscriber of the waiting service during the call according to the present invention, and the SCP 151 records the database. After confirming from 152, the called party MSC 124 may be controlled to implement the on-call waiting service.

A user who wants to receive a waiting service during a call according to the present invention connects to an interactive voice response (IVR) system 161 provided by a service operator through a wired terminal 171 and a mobile communication terminal 172, or a PC or laptop. In operation 173, the service operator may access the point of contact (POC) system 162 provided by the service operator and apply for a service subscription.

2 is a block diagram illustrating a simplified configuration of a network system according to a case where a call waiting service of the present invention is implemented in a mobile communication network.

As described above, the call waiting service of the present invention may be implemented in both a wired communication network and a mobile communication network. However, in the present specification, for convenience of description, the case where the calling terminal and the called terminal are mobile communication terminals will be described as an example.

Call waiting control method according to an embodiment of the present invention may be implemented by a call waiting control system of the communication network system. The call waiting control system may include a service controller 261, a database 262, and a database manager 263. The communication network system includes a first calling terminal 210, a second calling terminal 220, a calling MSC (O_MSC) 230, a called MSC (T_MSC) 240, and a called party. The concept includes the terminal 250.

The database 262 records call priority information for a plurality of caller IDs corresponding to subscriber terminal information. This will be described with reference to FIG. 3.

3 is a diagram illustrating a database structure of a call waiting control system according to an exemplary embodiment of the present invention.

As shown in FIG. 3, subscriber terminal information, caller ID, call priority information, and PIN information may be recorded in the database 300 of the call waiting control system according to the exemplary embodiment of the present invention. The subscriber station information may be implemented as a phone number of each terminal. In addition, the subscriber station information may be implemented as various information that can be implemented in the art for identification of the subscriber terminal, as well as the telephone number of the terminal as described above.

The caller ID means a caller ID of another user terminal designated by the subscriber. Accordingly, one or more caller IDs may be set in one subscriber station information. The caller ID may be freely changed at the discretion of the subscriber.

The call priority information means call priority set by the subscriber for each caller ID. As shown in Fig. 3, a subscriber having subscriber terminal information " 011-111-1111 " can set call priority information " first priority " for the caller ID " 011-222-2222 " Call priority information of "second order" may be set for "-333-3333". The call priority information may be freely changed according to the subscriber's judgment.

The PIN information may be set for the subscriber terminal. For example, PIN information "1A" may be set for a subscriber station having subscriber station information "011-111-1111" and "2B" for a subscriber station having subscriber station information "010-777-7777". PIN information may be set.

In FIG. 2, the service controller 261 may request a call connection to the called terminal 250 while the call connection is maintained between the first calling terminal 210 and the called terminal 250. Call priority information and call priority information of the first calling terminal 210 are read from the database 262 and compared. As a result of the comparison, when the call priority of the first caller terminal 210 is higher than the call priority of the second caller terminal 250, the call is transmitted to the service control unit 261 and the second caller terminal 250 so that the call impossible information is transmitted. The side MSC 240 is controlled.

The exchange, which includes the calling MSC 230 and the called MSC 240, performs a call connection between the first calling terminal 210 and the called terminal 250 and receives a call from the second calling terminal 220. When receiving a call connection request for the terminal 250, the information on the call connection request of the second originating terminal 250 is transmitted to the service controller 261. In addition, the exchange transmits the call impossible information to the second calling terminal 250 under the control of the service controller 261.

The service control unit 261, the service control unit is a message containing the call connection request information from the second caller terminal 220 when the call connection between the first caller terminal 210 and the called terminal 250 is terminated. Control a predetermined message service center associated with the exchange to be sent to the called terminal 250.

In addition, if the call priority of the first caller terminal 210 is lower than the call priority of the second caller terminal 220 as a result of the comparison, the service controller 261 rings the ringback tone to the second caller terminal 220. back tone) is transmitted, and the switch is controlled so that the call connection request information of the second calling terminal 220 is transmitted to the called terminal 250.

When the service control unit 261 receives the highest priority call setting for the first calling terminal 210 from the called terminal 250 through the exchange during the call connection between the first calling terminal 210 and the called terminal 250. The switch is controlled such that the call impossible information is transmitted to the second calling terminal 220 without performing the comparing step with respect to the call connection request received from the second calling terminal 220.

The database manager 263 records and updates the subscriber station information, the caller ID, and the call priority information in the database 262. That is, the service control unit 261 transmits the call priority update information to the database manager 263 when receiving the call priority update information for the first calling terminal 210 from the called terminal 250 through the exchange. . The database manager 263 updates the call priority information of the first calling terminal 210 recorded in the database 262 according to the call priority update information.

In addition, the database manager 263 provides a user interface for setting call priority information to the user through WEB, WAP (Wireless Application Protocol), or IVR (Interactive Voice Response). When the database manager 263 receives call priority information from the user through the user interface, the database manager 263 may record the received call priority information in the database 262 to perform a service subscription procedure or an update procedure.

Personal identification number (PIN) information corresponding to the subscriber station information may be further recorded in the database 262. In this case, the service control unit 261 may use the PIN information included in the call connection request from the second calling terminal 220 received through the exchange and the PIN information of the called terminal 250 recorded in the database 262. Compare.

As a result of the comparison, when the PIN information included in the call connection request and the PIN information of the called terminal 250 recorded in the database 262 are the same, the service control unit 261 sends a ringback tone to the second calling terminal 220. The ring back tone is transmitted, and the switch is controlled so that the call connection request information of the second calling terminal 220 is transmitted to the called terminal 250.

Hereinafter, a method of controlling waiting during a call in a communication network switching system according to an embodiment of the present invention will be described with reference to FIGS. 4 to 6.

4 is a flowchart illustrating a method for controlling standby during communication in a communication network switching system according to an embodiment of the present invention.

The communication network switching system according to an embodiment of the present invention includes a first calling terminal, a second calling terminal, a switch, a service control unit, and a called terminal. The first calling terminal, the second calling terminal, and the called terminal are mobile communication terminals, and the exchange includes a calling MSC and a called MSC.

The called terminal requests a service registration from the service control unit according to a service subscription request of the user (step 411). When receiving the service registration request from the called terminal, the service controller records the subscriber terminal information, the caller ID, the call priority, and the PIN information of the called terminal in a database (step 412). Perform the service registration procedure for. The service registration may be performed through the called terminal as described above, or may be performed by web access through a PC or a notebook.

The first originating terminal transmits a call connection request to the exchange for a call connection with the called terminal according to the caller's request (step 413). When the exchange receives the call connection request for the called terminal from the first calling terminal, it transmits the call connecting request of the first calling terminal to the called terminal (step 414).

When receiving a response to the call connection request from the called terminal (step 415), the exchange performs a call connection between the first calling terminal and the called terminal (step 416).

During the call connection between the first calling terminal and the called terminal, when the second calling terminal requests a call connection to the exchange for a call connection with the called terminal (step 417), the switch is connected to the call terminal. The terminating terminal detects that a call is in connection with the first calling terminal (step 418).

Accordingly, the exchange inquires whether the destination terminal is subscribed to the on-call standby service according to the present invention (step 419). When receiving the confirmation from the service control unit that the called terminal is a service subscription terminal (step 420), the exchange has the call priority information of the first calling terminal and the call priority information of the second calling terminal set for the called terminal. Query the service control unit (step 421).

The service control unit reads and compares call priority information of the first calling terminal and call priority information of the second calling terminal from the database (step 422). The service controller responds with the call priority information comparison result to the exchange (step 423).

As a result of the comparison, when the call priority information of the first calling terminal that is in call connection with the called terminal has a higher priority than the call priority information of the second calling terminal, the service controller determines that the exchange is a call to the second calling terminal. Control to transmit impossible information (step 424). The non-call information may be implemented as a busy tone indicating that a call is in progress, a voice message or a text message including a content indicating that a call with the called terminal is impossible.

Therefore, it is possible to expect an effect that the called terminal user can continue a call with the first calling terminal user having a higher priority regardless of the call request of the second calling terminal user having a lower priority. .

When the call connection between the first originating terminal and the called terminal is terminated, the exchange notifies the service control unit that the call connection is terminated (step 426). The service control unit requests transmission of call connection request information indicating that the call connection request has been received from the second originating terminal (step 427).

The exchange controls the message service center according to the request from the service control unit (step 428), so that a message including the call connection request information from the second originating terminal is transmitted to the called terminal (step) (429)).

Accordingly, the called terminal user can recognize that there is a call request from the second calling terminal user during the call with the first calling terminal user through the message and take a predetermined action accordingly.

FIG. 5 is a flowchart illustrating a method for controlling call waiting during a communication network switching system according to another embodiment of the present invention.

In the call waiting control method of the communication network switching system illustrated in FIG. 5, in the call waiting control method described with reference to FIG. 4, the call priority information of the first calling terminal has a lower priority than the second calling terminal call priority information. It is about.

As described with reference to FIG. 4, in the case of a call connection between the first calling terminal and the called terminal (step 511), when the second calling terminal requests a call connection to the exchange for call connection with the called terminal (step The switch detects that the called terminal is in a call connection with the first calling terminal (step 513).

The exchange queries the service control unit whether the called terminal is subscribed to the on-call standby service according to the present invention (step 514). When receiving the confirmation from the service control unit 420 that the called terminal is a service subscription terminal (step 515), the switch has the call priority information of the first calling terminal and the second calling terminal set for the called terminal. Contact the service control section for call priority information (step 516).

The service control unit reads and compares call priority information of the first calling terminal and call priority information of the second calling terminal from a database (step 517). The service controller responds with the call priority information comparison result to the exchange (step 518).

As a result of the comparison, when the call priority information of the first caller terminal which is in a call connection with the called terminal has a lower priority than the call priority information of the second caller, the service controller determines that the exchange is determined by the second switch. The ringback tone is transmitted to the calling terminal (step 519), and the call terminal is controlled to transmit the call connection request information from the second calling terminal (step 520). The ring back tone may be implemented as a ring back tone set corresponding to the called terminal. In addition, the call connection request information may be implemented as a caller ID or lettering of the second calling terminal displayed on the called terminal.

FIG. 6 is a flowchart illustrating a method for controlling call waiting during communication in a network switch system according to another embodiment of the present invention.

6 shows a flow of three waiting services during a call according to another embodiment of the present invention. The call waiting service shown in block 601 is for the priority call setup, the call waiting service shown in block 602 is for updating the call priority, and the call waiting service shown in block 603 is an emergency call via PIN information. It is about.

Each call waiting service included in blocks 601, 602, and 603 is shown only in FIG. 6 for convenience of description, and may be implemented as separate independent services without having the same time series configuration. have.

In block 601, during a call connection between the first calling terminal and the called terminal (step 611), the called terminal user may enter a top priority call setup at the exchange (step 612). That is, the called terminal user may set a priority call for the first calling terminal when the call is important and the caller does not want to receive a call request from another caller while talking with the first calling terminal user.

The called terminal user may input the highest priority call setting to the exchange by inputting a predetermined feature code selected through the called terminal. The feature code may be selected by the service controller and provided to the called terminal user in advance.

The exchange notifies the service control unit that the highest priority call setting has been input from the destination terminal, and the service control unit sets a priority call for the call connection between the first originating terminal and the destination terminal.

At this time, when receiving a call connection request for the called terminal from a second calling terminal, the exchange detects that the called terminal is busy, and the called terminal waits during the call according to the present invention to the service control unit. Inquire whether a service is subscribed (step 616). If the receiving terminal confirms that the called terminal is a service subscribed terminal (step 617), the switch exchanges the call priority information of the first calling terminal and the call priority information of the second calling terminal set for the called terminal. Query the service control unit (step 618).

The service controller detects that the first priority call is set between the first calling terminal and the called terminal, and thus does not compare the call priority information of the first calling terminal and the call priority information of the second calling terminal. And notifying the exchange (step 619) to control the exchange to transmit the unavailable call information to the second originating terminal (step 620).

Therefore, even if the first calling terminal in the call connection has a relatively low priority, if it is determined that the contents of the call are important, the called terminal user sets the priority call to the first calling terminal, whereby another calling terminal is set. It is possible to maintain a call with the first calling terminal user without being disturbed by the call request from the user.

In block 602, the called terminal user may input call priority update information of the first calling terminal to the exchange during the call with the first calling terminal user (step 621). The called terminal user may input the call priority update information to the exchange by inputting a predetermined feature code selected through the called terminal. The feature code may be selected by the service controller and provided to the called terminal user in advance.

The exchange receiving the call priority update information transmits the call priority update information to the service control unit (step 622). The service control unit may update the call priority information of the first calling terminal recorded in the database according to the call priority update information (step 623).

In block 603, personal identification number (PIN) information corresponding to subscriber station information may be further recorded in the database associated with the service control unit. During the call connection between the first calling terminal and the called terminal, when the exchange receives PIN information together with a call connection request for the called terminal from the second calling terminal (step 624), the called terminal Detects that the call is busy (step 625).

The exchange queries the service control unit whether the called terminal has subscribed to the call waiting service according to the present invention (step 626). When receiving the confirmation from the service controller that the called terminal is a service subscription terminal (step 627), the exchange transmits the PIN information received from the second calling terminal to the service controller (step 628).

The service controller compares the PIN information received from the exchange with the PIN information of the called terminal recorded in the database (step 629). The service controller responds with the comparison result to the exchange (step 630).

In step 630, if the PIN information transmitted by the second calling terminal and the PIN information recorded corresponding to the called terminal in the database are the same as the result of the comparison, the service controller determines that the exchange is performed by the switching unit. A ringback tone is transmitted to the calling terminal (step 631), and the calling terminal is controlled to transmit the call connection request information from the second calling terminal (step 632).

In operation 630, if the PIN information transmitted by the second calling terminal and the PIN information recorded corresponding to the called terminal are not identical to each other in the database as a result of the comparison, the service control unit may generate the first control information. The operation of the exchange may be controlled by comparing the call priority information of the first calling terminal with the call priority information of the second calling terminal and transmitting the result to the exchange.

As such, in case of an emergency call, the second calling terminal user may notify the called terminal user of a call connection request to the called terminal without comparing the call priority through the PIN information set for the called terminal. Be prepared for the situation.

So far, the method of controlling call waiting in the communication network switching system according to an embodiment of the present invention has been described with reference to FIGS. 4 to 6. According to another embodiment of the present invention, the call waiting control method may be implemented in a communication terminal. Hereinafter, a configuration and an operation according to a standby control method of a communication terminal of a communication terminal according to another embodiment of the present invention will be described with reference to FIGS. 7 and 8.

7 is a diagram illustrating a configuration of a communication terminal implementing a call waiting control method according to another embodiment of the present invention.

8 is a flowchart illustrating a method for controlling standby during communication of a communication terminal according to another embodiment of the present invention.

The communication terminal 700 implementing the call waiting control method according to another embodiment of the present invention is a memory means 710, call priority information table management unit 720, comparison control unit 730, information control unit 740, communication Module 750, and user interface 760. The communication terminal 700 may be implemented as any one of a wired terminal and a mobile communication terminal.

The communication terminal 700 maintains a memory means 710 in which a call priority information table including call priority information corresponding to each of a plurality of other communication terminals is recorded (step 811). Since the call priority information table may be implemented in the same manner as the structure of the database according to the embodiment of the present invention described with reference to FIG. 3, a detailed description thereof will be omitted.

The communication terminal 700 maintains a call connection with the first calling terminal through the communication module 750 (step 812). In the case of receiving a call connection request of the second calling terminal from the switching system during the call connection with the first calling terminal (step 813), the comparison control unit 730 determines the first calling terminal from the call priority information table. Call priority information of and the call priority of the second calling terminal are read out and compared (step 814).

As a result of the comparison, when the call priority of the first originating terminal has a higher priority than the call priority of the second originating terminal (step 815), the information control unit 740 connects the call of the second originating terminal. Rejection information for the request is generated and sent to the exchange system (step 816).

The exchange system, having received the rejection information, transmits non-call information to the second originating terminal. The non-call information may be implemented as one of a busy tone, a voice message, or a text message.

When the call connection with the first originating terminal is terminated (step 817), the information controller 740 displays a message for the call connection request from the second originating terminal through the user interface 760. (Step 818).

In step 815, when the call priority of the first originating terminal has a lower priority than the call priority of the second originating terminal, the information control unit 740 sets the caller ID of the second originating terminal to the user interface 760. Display (step 819).

Further, when receiving the call priority update information for the first originating terminal from the user through the user interface 760 during the call connection with the first originating terminal as in step 812 (step 820). The call priority information table manager 720 updates the call priority information of the first calling terminal recorded in the call priority information table according to the call priority update information (step 821). The call priority update information received from the user in step 820 may be implemented as a key input that the user inputs through a keypad of the communication terminal 700.

In addition, when receiving the highest priority call setting for the first calling terminal from the user during the call connection with the first calling terminal as in step 812 (step 822), the information controller 740. Sets the highest priority call to the call connection with the first originating terminal. At this time, when receiving a call connection request from the second originating terminal through the switching system (step 823), the information control unit 740 does not compare the call priority information of the comparison control unit 730, the information control unit 740 is the call connection request. Generate rejection information for and send it to the exchange system (step 824). The exchange system, having received the rejection information, transmits non-call information to the second originating terminal.

Further, when receiving the PIN information and the call connection request from the second calling terminal through the switching system during the call connection with the first calling terminal as in step 812 (step 825), the comparison control unit 730 compares the PIN information included in the call connection request of the second originating terminal with the PIN information recorded in the call priority information table (step 826).

As a result of the comparison, when the PIN information included in the call connection request of the second calling terminal and the PIN information recorded in the call priority information table are the same (step 827), an information control unit according to step 819 819 displays the caller ID of the second calling terminal through the user interface 760. In addition, when the comparison result indicates that the PIN information included in the call connection request of the second calling terminal and the PIN information recorded in the call priority information table are not the same, the process returns to step 814 as described above. Operation 814 to step 819 may be performed.

The standby control method of the communication network communication system and the communication terminal according to the present invention can be implemented in the form of program instructions that can be executed by various computer means can be recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

According to the call waiting control system, the call waiting control terminal, and the method of the present invention, by setting the execution of the call waiting service by discriminating according to the priority of the caller preset by the user, Therefore, it is possible to obtain an effect of implementing a waiting service.

In addition, according to the call waiting control system, the call waiting control terminal, and the method of the present invention, when the content of the call with the low priority caller is important, a simple key input or a feature code input is applied to the current call. By granting the right of priority call, it is possible to prevent the interruption of the current call due to the waiting service.

In addition, according to the call waiting control system, the call waiting control terminal, and the method of the present invention, even if the caller of low priority, the caller inputs the personal identification number (PIN) information preset by the called party to request a call connection. In this case, the called party recognizes this as an emergency call, thereby preventing an error that the waiting service subscriber does not receive the emergency call.

In addition, according to the call waiting control system, the call waiting control terminal, and the method of the present invention, by implementing the above call waiting service to the subscriber of the call waiting service of the existing wired and wireless communication network, The effect is to minimize the potential for interruption and to allow service operators to generate profits for new telecommunications services.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

Claims (26)

In the call waiting control method of the network switching system, Maintaining a database in which call priority information for a plurality of caller IDs is recorded corresponding to subscriber terminal information; When a call connection request for the called terminal is received from the second calling terminal while the call connection between the first calling terminal and the called terminal is maintained, the call of the first calling terminal set corresponding to the called terminal from the database. Reading priority information and call priority information of the second calling terminal; Comparing call priority information of the first calling terminal with call priority information of the second calling terminal; And As a result of the comparison, if the call priority of the first calling terminal is higher than the calling priority of the second calling terminal, controlling the non-call information to be transmitted to the second calling terminal. Call waiting control method of a communication network switching system comprising a. The method of claim 1, As a result of the comparison, when the call priority of the first calling terminal is lower than the call priority of the second calling terminal, a predetermined ring back tone is transmitted to the second calling terminal and is sent to the called terminal. Controlling the call connection request information of the second originating terminal to be transmitted; Call waiting control method of the communication network switching system further comprising a. The method of claim 1, If the call connection between the first calling terminal and the called terminal is terminated, controlling a message including the call connection request information from the second calling terminal to be transmitted to the called terminal. Call waiting control method of the communication network switching system further comprising a. The method of claim 1, Receiving a priority call setting for the first calling terminal from the called terminal; More, And when the priority call setting is input, the call impossible information is transmitted to the second calling terminal without performing the comparing step with respect to the call connection request received from the second calling terminal. A method of controlling call waiting in a switching system. The method of claim 4, wherein The step of receiving the highest priority call setting for the first calling terminal from the called terminal, Receiving a predetermined feature code from the called terminal user; Call waiting control method of a communication network switching system, characterized in that. The method of claim 1, Receiving call priority update information for the first calling terminal from the called terminal; And Updating call priority information of the first originating terminal recorded in the database according to the call priority update information; Call waiting control method of the communication network switching system further comprising a. The method of claim 6, The step of receiving the call priority update information for the first calling terminal from the called terminal, Receiving a predetermined feature code from the called terminal user; Call waiting control method of a communication network switching system, characterized in that. The method of claim 1, The call unavailable information may be any one of a busy tone, a voice message, or a text message. The method of claim 1, PIN (Personal Identification Number) information corresponding to the subscriber station information is further recorded in the database, Comparing PIN information included in the call connection request from the second calling terminal with PIN information of the called terminal recorded in the database; And As a result of the comparison, when the PIN information included in the call connection request and the PIN information of the called terminal recorded in the database are the same, a predetermined ring back tone is transmitted to the second calling terminal. Controlling the call connection request information of the second calling terminal to be sent to a called terminal; Call waiting control method of the communication network switching system further comprising a. Maintaining memory means in which a call priority information table including call priority information corresponding to each of the plurality of other communication terminals is recorded; Maintaining a call connection with a first originating terminal; When receiving a call connection request of a second calling terminal from a switching system, reading call priority information of the first calling terminal and call priority information of the second calling terminal from the call priority information table; Comparing call priority information of the first calling terminal with call priority information of the second calling terminal; And As a result of the comparison, if the call priority of the first originating terminal is higher than the call priority of the second originating terminal, rejection information of the call connection request of the second originating terminal is transmitted to the switching system. Sending steps Call waiting control method of a communication terminal comprising a. The method of claim 10, When the exchange system receives the rejection information from the communication terminal, the switching system transmits the non-call information to the second calling terminal, and the non-call information is any of busy tone, voice message, or text message. Call waiting control method of a communication terminal, characterized in that one. The method of claim 10, Displaying the caller ID of the second calling terminal if the call priority of the first calling terminal is lower than the calling priority of the second calling terminal. Call waiting control method of the communication terminal further comprising a. The method of claim 10, Displaying a message for the call connection request from the second calling terminal when the call connection between the first calling terminal and the called terminal is terminated. Call waiting control method of the communication terminal further comprising a. The method of claim 10, Receiving a priority call setting for the first calling terminal from a user; More, When the first priority call setting is input, the exchange information of the call connection request of the second originating terminal is exchanged without performing the comparing step with respect to the call connection request received from the switching system. Call waiting control method of the communication terminal, characterized in that for transmitting to the system. The method of claim 14, The step of receiving the highest priority call setting for the first calling terminal from the user, Receiving a predetermined key input from the user Call waiting control method of a communication terminal, characterized in that. The method of claim 10, Receiving call priority update information for the first calling terminal from a user; And Updating call priority information of the first calling terminal recorded in the call priority information table according to the call priority update information; Call waiting control method of the communication terminal further comprising a. To set up call waiting on your computer. The method of claim 16, The step of receiving the call priority update information for the first originating terminal from the user, Receiving a predetermined key input from the user Call waiting control method of a communication network switching system, characterized in that. The method of claim 10, PIN (Personal Identification Number) information is further recorded in the call priority information table. Comparing the PIN information included in the call connection request from the second calling terminal with the PIN information recorded in the call priority information table; And Displaying the caller ID of the second calling terminal when the PIN information included in the call connection request and the PIN information recorded in the call priority information table are the same. Call waiting control method of the communication terminal further comprising a. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 18. In the call waiting control system of the communication network system, A database in which call priority information for a plurality of caller IDs is recorded corresponding to subscriber terminal information; And Read and compare call priority information of the second calling terminal and the call priority information of the first calling terminal, which requests a call connection to the called terminal, while the call connection between the first calling terminal and the called terminal is maintained; And, if the call priority of the first originating terminal is higher than the call priority of the second originating terminal, as a result of the comparison, the service control unit for controlling to transmit the impossible call information to the second originating terminal. Including, The communication network system, When performing a call connection between the first calling terminal and the called terminal and receiving a call connection request for the called terminal from the second calling terminal, information on the call connecting request of the second calling terminal is read. A switch for transmitting to the service control unit, and transmits the call impossible information to the second caller terminal under the control of the service control unit. Call waiting control system comprising a. The method of claim 20, The service controller transmits a predetermined ring back tone to the second calling terminal when the call priority of the first calling terminal is lower than the calling priority of the second calling terminal. And controlling the switch to transmit the call connection request information of the second calling terminal to a called terminal. The method of claim 20, The service control unit may determine that a message including the call connection request information from the second calling terminal is transmitted to the called terminal when the call connection between the first calling terminal and the called terminal is terminated. Call waiting control system, characterized in that for controlling the message service center. The method of claim 20, When the service control unit receives the highest priority call setting for the first originating terminal from the called terminal through the exchange, the service controller does not perform the comparing step with respect to the call connection request received from the second originating terminal. And controlling the switch so that the call-free information is transmitted to an originating terminal. The method of claim 20, A database manager for recording and updating the subscriber station information, the caller ID, and the call priority information in the database; More, When the service control unit receives call priority update information for the first originating terminal from the called terminal through the exchange, the service control unit transmits the call priority update information to the database manager, and the database manager transmits the call priority update information. The call waiting control system of claim 1, wherein the call priority information of the first calling terminal is recorded in the database. The method of claim 24, The database manager provides a user interface for setting call priority information to a user through WEB, WAP, or IVR, and receives the call priority information from the user when receiving call priority information through the user interface. Call waiting control system, characterized in that recorded in the database. The method of claim 20, PIN (Personal Identification Number) information corresponding to the subscriber station information is further recorded in the database, The service control unit compares the PIN information included in the call connection request from the second originating terminal received through the exchanger with the PIN information of the called terminal recorded in the database, and as a result of the comparison, the call connection request When the PIN information included in the PIN information of the called terminal recorded in the database is the same, a predetermined ring back tone is transmitted to the second calling terminal, and the second calling terminal is sent to the called terminal. And control the switch to transmit the call connection request information of the call.

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