KR20060033304A - Incoming call control service method according to the state of called subscriber in communication system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to an incoming call control service method according to a state of a called subscriber in a communication system and a computer readable recording medium storing a program for realizing the method.

2. The technical problem to be solved by the invention

The present invention sets up an incoming call control service such as an automatic answering function in a communication system so that incoming (mobile) subscribers are absent (driving, meeting, seminar, education, hobby, vacation, leaving work, etc.) and outgoing (mobile) subscribers. Incoming call control service method and method for providing supplementary services (current status guide, hot-line, voice message delivery, mobile phone call, voice recording service, etc.) according to the state of incoming (mobile) subscriber Its purpose is to provide a computer readable recording medium having recorded thereon a program for realizing this.

3. Summary of Solution to Invention

The present invention provides a method for controlling an incoming call in a communication system, comprising: a service registration step of registering a service of a called party with or without service setting (setting / cancellation) and a current state (or greeting); When a call is originated (received number), the calling exchange extracts the called number and routes the call to a called exchange that manages the called number. A call routing step for linking an incoming call control and a sending device (IP); And the incoming call control and sending device (IP) voice guides the current status (or greeting) of the called party to the calling party, and sends a call to the corresponding called number according to the emergency call digit input of the calling party according to a call control guide. Call routing step of routing.

4. Important uses of the invention

The present invention is used in mobile communication networks and the like.

Call Control, Auto Answer, Missed, Voice Prompt, Hot-line

Description

{Control service method for terminating call's bearer in condition of the terminating member on communication system}             

1 is an exemplary configuration of a communication system for an incoming call control service according to a state of a called subscriber to which the present invention is applied;

2 is a detailed flowchart illustrating a service setting process for an incoming call control service according to a state of a called subscriber according to the present invention;

3 is a flowchart illustrating an exemplary call control service method according to a state of a called subscriber according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: user terminal 12: wired and wireless Internet server

13: ARS Server 14: Operator Call Control Server

15: Subscriber DB (or HLR) 16: Operator's call signal control and transmission device

17: carrier SMS server 18: calling terminal

19: outgoing exchange 20: called terminal

21: incoming exchange

The present invention relates to an incoming call control service method according to a state of a called subscriber in a communication system and a computer readable recording medium recording a program for realizing the method. Set up the incoming call control service so that when the incoming (mobile) subscriber is absent (driving, meeting, seminar, training, hobby, vacation, leaving work, etc.) An incoming call control service method that can provide services (status information, hot-line, voice message delivery, mobile phone call, voice recording service, etc.) and a program for realizing the method. It relates to a recording medium that can be.

In general, in order for a wired / wireless service provider to provide an automatic response function, the wired / wireless communication network of the service provider is connected to the Internet / Intranet, and when the wired / wireless communication service provider provides an automatic response function, an additional automatic response control and transmission for the exchange system is added. Supply of devices (IVR, IP, etc.) is essential. However, if all calls to the answering machine subscriber occupy the device, not only the operator's excessive facility investment is required, but also the basic purpose of the communication service if the answering machine is provided for all incoming calls.

Therefore, in order to provide an efficient facility, in order to provide the answering machine by the choice of the called party, the subscriber can use the wired / wireless Internet (WEB, WAP) or service access number (service request access number) (for example, when using the answering machine). , * 79, 15xx, etc.) or answering machine connection device (700-xxxx ARS, etc.) is set to enable / disable the answering machine function. That is, in order to use the answering machine, the subscriber sets / turns off the answering machine using an operator telephone network (ARS) or wired / wireless Internet (WEB, WAP).

However, in situations where subscribers cannot talk or are absent (driving, meetings, seminars, training, hobbies, vacations, leaving work, etc.), automatic answering functions provided by wired / wireless carriers and terminals can be used for emergency and priority of work. Regardless of whether the call is terminated after unilaterally informing the outgoing (mobile) subscriber only the status of the incoming (mobile) subscriber, it is impossible to make a call in case of emergency work, limiting the basic functions of the communication service, and eventually answering service. Has been a stumbling block to universalization.

The present invention has been proposed to solve the above problems, by setting up an incoming call control service such as an automatic answering function in the communication system, the absence of incoming (mobile) subscribers (driving, meetings, seminars, training, hobby activities, vacations, Provides additional services (current status guide, hot-line, voice message delivery, mobile phone call, voice recording service, etc.) according to the status of incoming (mobile) subscriber to outgoing (mobile) subscribers It is an object of the present invention to provide an incoming call control service method and a computer readable recording medium storing a program for realizing the method.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In order to achieve the above object, the present invention provides a method for controlling an incoming call in a communication system, comprising: a service registration step of registering a service of a called subscriber with or without service setting (setting / cancellation) and a current state (or greeting); When a call is originated (received number), the calling exchange extracts the called number and routes the call to a called exchange that manages the called number. A call routing step for linking an incoming call control and a sending device (IP); And the incoming call control and sending device (IP) voice guides the current status (or greeting) of the called party to the calling party, and sends a call to the corresponding called number according to the emergency call digit input of the calling party according to a call control guide. It characterized in that it comprises a call routing step for routing.

In addition, the present invention is the call control and sending device (IP) voice guidance to the calling party the current state (or greetings) of the called party, and according to the call control message of the caller according to the caller input message of the calling party And a message call service step of transmitting a voice message to the called party number.

In addition, the present invention, the incoming call control and transmission device (IP) voice guidance to the calling party the current status (or greetings) of the called party, and the caller's contact information according to the call digit input of the calling party according to the call control announcement Characterized in that it further comprises a call service step for transmitting to the called party number.

In addition, the present invention is the call control and sending device (IP) voice guidance to the calling party the current status (or greetings) of the called party, the caller voice according to the voice recording digit input of the calling party according to the call control announcement And storing a message in a voicemail box, and further including a voicemail service step of notifying a voice message call to the corresponding called number.

In addition, the present invention is characterized in that it further comprises a service change notification step of real-time notification of the service change details to the called party number through a short message (SMS) when the service registration details change.

On the other hand, the present invention is a service registration for registering the service setting (release / release), the current status (or greetings) of the service, the subscriber in the communication system with a processor for the incoming call control service according to the status of the called party function; When a call is originated (calling the incoming number), when the calling exchange extracts the called number and routes the call to the called exchange that manages the called number, the called exchange checks the service setting of the called number and sets the service. A call routing function for linking an incoming call control and a sending device (IP); And the incoming call control and sending device (IP) voice guides the current status (or greeting) of the called party to the calling party, and sends a call to the corresponding called number according to the emergency call digit input of the calling party according to a call control guide. A computer readable recording medium having recorded thereon a program for realizing a routing call routing function is provided.

The present invention also provides a computer-readable recording medium recording a program for further realizing a service change notification function of real-time notification of service change details to the called party number through a short message service (SMS). to provide.

According to the present invention, regardless of a separate terminal function, whenever an incoming (mobile) subscriber is placed in an environment in which it is difficult or immediately equivalent to a voice call, or whenever the environment is improved (a callable situation or presence), communication is performed. The system can easily set / cancel incoming call control service through wired / wireless internet (WEB, WAP) or automatic answering system (ARS), so that the subscriber status (driving, meeting, seminar, Education, hobbies, vacations, work leave, etc.) Not only can send (mobile) subscribers information (current status guide), but also make calls (hot-line) according to the emergency status of the calling (mobile) subscribers. )) Or other incoming (mobile) subscribers to provide additional services (voice message delivery (message call), mobile phone call, voice recording, etc.) according to the type specified by the subscriber.

To this end, the present invention can be called anytime and anywhere due to the universalization of mobile phone technology and services, but in the circumstances that the incoming (mobile) subscriber is not available and difficult to respond immediately, depending on the status of the incoming (mobile) subscriber Outgoing (Mobile) Incoming Call (Mobile) Subscriber's status (driving, meeting, seminar, training, hobby, vacation, leaving work, etc.) Greetings, or other incoming (mobile), depending on the subscriber's status, after the voice guidance through the call connection and control functions such as hot-line, voice message delivery (message call), mobile phone calls, voice recording, etc. Can provide services.

This service (incoming call control service) provides only the status of the called subscriber and eliminates the inconvenience of not being connected to the call, such as temporary call barring service, personal assistant service, and simple guidance provided by the mobile terminal. , Basic guide function and detour routing function can be provided to provide basic functions of mobile phone service according to priority, and convenient through various paths according to the taste of mobile subscribers such as wired / wireless internet (WEB, WAP), ARS It is possible to register its own status (set / disable incoming call control service).

At this time, when setting up the incoming call control service, the status of the incoming (mobile) subscriber can be set in detail by limiting the range (driving, meeting, seminar, education, hobby, vacation, leaving work, etc.). In the case of specifying the date, etc., the setting code can be automatically terminated after the set period, and the service registration status (setting / change history) can be informed via SMS. This is to prevent and suppress a situation in which subscriber carelessness and other related disadvantages may be caused by notifying the incoming (moving) subscriber of the change and setting details through SMS when the service setting contents are changed.

As such, the present invention provides a function of integrating missed services by type, and when the telephone call is difficult due to the circumstances of the incoming (mobile) subscriber, although the actual status of the incoming (mobile) subscriber in various types is detailed, It can control a certain call by guiding, and can respond to the indiscriminate call connection by pre-controlling a repeated voice advertisement message. In addition, in the case of the existing service can not be called for all incoming calls when the incoming call is set up, this service can be selectively used for emergency and emergency services, so that it can be used for more efficient communication services.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a communication system for an incoming call control service according to a state of a called subscriber to which the present invention is applied.

The communication system for the incoming call control service is a service subscription only regardless of the terminal's own function. It provides a response function (status information) (operation, meeting, seminar, education, hobbies, vacation, work leave, etc.). In addition, when a call request is made to an incoming mobile subscriber subscribed to an incoming call control service, not only a simple voice announcement (presence guide) but also a call connection (hot-line) and voice in a form designated by the incoming mobile subscriber in particular. Provides additional services such as message delivery (message call), mobile phone call, and voice recording. In addition, when changing the service setting contents, the incoming (moving) subscribers are notified of the change and setting details through SMS, thereby preventing and suppressing inadvertent subscribers and other situations that may disadvantage the corresponding subscribers.

As shown in FIG. 1, a communication system for an incoming call control service to which the present invention is applied is for an incoming call control service of a wired / wireless communication service provider based on an information communication network. In addition to the current status), it provides additional services such as call connection (hot-line) and voice message delivery (message call), mobile phone call, voice recording, etc.

At this time, the communication service provider may supply the subscriber subscriber call control and transmission device (IP) 16 according to the call volume using the call background sound service.

Here, the information communication network such as a public telephone network (PSTN), a mobile communication network, etc. connects communication lines between the originating terminal 18 and 20 and the exchange 19 and 21, and makes voice communication between the originating terminal 18 and 20. To establish a connection. In addition, information communication networks such as wired / wireless Internet (WEB, WAP), public telephone network (PSTN), mobile communication network, etc., connect the communication lines between the user terminal 11 and the wired / wireless Internet server 12 / ARS server 13 to each other. And / or establish a connection for data communication.

Therefore, the call destination terminals 18 and 20 are mobile communication terminals such as wired / wireless phones, cellular phones or PCS phones capable of voice communication, next-generation mobile communication such as International Mobile Telecommunication (IMT-2000) and Universal Mobile Telecommunication Service (UMTS). Terminals, personal digital assistants (PDAs) and the like, and the voice communication between the originating and receiving terminals 18 and 20, as long as possible, regardless of its kind.

In addition, the user terminal 11 may be a mobile communication terminal such as a general wired / wireless phone, a cellular phone or a PCS phone, a next generation mobile communication terminal such as International Mobile Telecommunication (IMT-2000), Universal Mobile Telecommunication Service (UMTS), or a personal mobile terminal ( PDA), WAP terminal, Web terminal, etc., and voice and / or data communication is possible regardless of the type.

In the present invention, the called terminal 20 and the user terminal 11 can be the same type or different types of terminal.

Accordingly, the subscriber may use the wired / wireless Internet server 12 or the ARS server 13 of the operator through his / her terminal 11 through wired / wireless Internet (WEB, ME / WAP) or wired / wireless communication network (public telephone network (PSTN), mobile communication network, etc.). Access the call guidance screen of the wired / wireless Internet server 12 or the voice guidance of the ARS server 13 to set the call forwarding control service (auto answering function, etc.) to the telecommunication service provider call control management server 14 You can turn it off. At this time, the telecommunication service provider call control server 14 checks whether the connected subscriber is an incoming call control service subscriber based on the subscriber DB (or HLR) 15. In addition, service setting details [setting / release, current status (driving, meetings, seminars, education, hobbies, vacations, leaving work, etc.), setting period (time, date), greetings, additional service details (emergency call connection (Hot) -line), voice message delivery (message call), mobile phone call, voice recording, etc.) is stored and managed in the carrier service call control management server 14 and can be changed and stored from time to time, if necessary, The setting details managed and stored in the control management server 14 are systematically stored in synchronization with the subscriber DB (HLR) 15 and the subscriber subscriber call control and transmission device (IP) 16.

The subscriber subscriber call control and transmission device (IP) 16 has special resources such as voice guidance, dual tone multi-frequency tone collection, voice recognition, and the like. In connection with the control management server 14 provides a service using a special resource. In particular, the subscriber's incoming call control and transmission device (IP) 16 transmits the voice announcement according to the details set when the call of the calling subscriber is settled, and plays a role of routing according to the input DTMF.

The subscriber DB (HLR) 15 stores and manages incoming call control service subscriber information and setting details, and serves to provide up-to-date information when a data request is requested from the telecommunication service provider incoming call control management server 14.

In general, the home location register (HLR) 15 of a mobile communication network is a database management system that stores and manages subscriber parameters and location information for all terminals registered in its own area. It manages important data such as service and performs routing function of called subscriber.

The carrier SMS server (short message transmission server) 17 notifies the receiving (moving) subscriber of the setting and the change history when the service setting contents are changed, and prevents and suppresses a situation in which subscriber carelessness and other disadvantageous subscribers may be disadvantaged. To do this, the setting details are transmitted in real time through SMS so that the subscriber can check the set details when the call control service setting / release.

On the other hand, the switchboards 19 and 21 are equipped with a VLR (Visitor Location Register), particularly in a mobile communication network, and include a subscriber DB (HLR) 15, a subscriber subscriber call control and transmission device (IP) 16, and a carrier operator. It interworks with the call control management server 14 to process mobile subscriber subscriber calls. In addition, the exchanges 19 and 21 connect to the base station controller (BSC) in the mobile communication network to perform call setup and release functions of the originating and receiving mobile terminals 18 and 20, and perform various functions related to call processing and additional services. do.

For reference, in the mobile communication network, the visitor location register (VLR) is a destination mobile terminal 18, while the destination mobile terminals 18 and 20 are in an area controlled by the visitor location register (VLR). 20 is a database that temporarily stores subscriber information related to 20), and temporarily stores the information of the called and received mobile terminals 18 and 20 and the subscriber from the home location register (HLR) 15. And are mounted on the exchangers 19 and 21.

In addition, the home location register (HLR) 15 in the mobile communication network is connected to the switchboards 19 and 21 and the telecommunication service provider call control management server 14 to manage various types of information of mobile subscribers. As a function of the subscriber location registration and interworking with various exchanges (19, 21), and stores the permanent information and location information of the call destination mobile terminal (18, 20) and the subscriber, the visitor location register (VLR) ) To support various functions related to call processing and supplementary services. In particular, the home location register (HLR) 15 stores the triggering information according to the service used by the subscriber.

For the incoming call control service of the present invention, the subscriber first of all, the subscriber's wired / wireless Internet server through the wired / wireless Internet (WEB, ME / WAP) or the wired / wireless communication network (PSTN, mobile communication network, etc.) (12) or ARS server 13, the service details desired by the user according to the connection guidance screen of the wired and wireless Internet server 12 or the voice guidance of the ARS server 13 [setting / cancel, current status (driving, meeting , Seminars, education, hobbies, vacations, leaving work, setting periods (time, date), greetings, additional service details (hot-line, voice message delivery (message call), mobile phone calls, voice recording Etc.). At this time, the telecommunication service provider call control server 14 checks whether the connected subscriber is an incoming call control service subscriber based on the subscriber DB (or HLR) 15. At this time, the service setting details are stored and managed in the telecommunications operator call control management server 14 and can be changed and stored at any time when the subscriber needs, the service setting details stored and managed in the telecommunications carrier incoming call control management server 14 is a subscriber Synchronized to the incoming call control and transmission device 16 is systemically stored.

At this time, when the service setting details are changed, the service provider call control management server 14 notifies the SMS server 17 to notify the receiving subscriber of the service change and setting details via SMS.

For example, when the incoming call control service subscriber connects to the wired / wireless Internet (WEB, WAP) server 12 or the ARS server 13 with his terminal 11 as shown in FIG. 2, the incoming call is received. The announcement for the control service on / off (for example, "Hello. This is an answering service. Please select 1 for the setting, 2 for the release", etc.) is sent (202).

According to the announcement, if the subscriber has set up the service (pressing "1"), the announcement for the current status registration (for example, "one while driving, two during meetings, training" ), 3 times if you are on vacation, 4 times if you are on vacation, 5 times when you are at bedtime, and press 9 for the greeting recording. " Accordingly, the subscriber can register the current state (driving, meeting, seminar, education, hobby, vacation, leaving work, etc.) by pressing the desired digit (DTMF) (204, 207). However, in the case of greeting recording (when "9" is pressed), the greeting recording announcement (for example, "record if you hear a beep, press the * or # button after recording", etc.) Accordingly, it is possible to record your own greetings (205, 207).

Meanwhile, according to the announcement, when the subscriber releases the service (when pressing "2"), the subscriber recognizes the call as a general call instead of an incoming call control service call (206, 207), and immediately returns to the called terminal 20 upon incoming call. The call is relayed.

As such, when the service setting details are changed, the service change and setting details are notified to the subscriber via SMS (208).

Then, when any caller sends a call to his terminal 18, the calling exchange 19 extracts the called number and relays the call to the corresponding call exchange 21. Then, the destination exchange 21 uses the subscriber and service information stored and stored in connection with the subscriber DB (or HLR of the wireless carrier) 15 of the wire carrier to determine whether the called number is a call back tone service subscription number. If it is determined whether or not the called number is an incoming call control service subscription number, the called number is recognized as an incoming call control call, and the state of the called subscriber to the calling terminal 18 through the subscriber subscriber call control and sending device (IP) 16 is determined. (Voice guidance, current meetings, seminars, training, hobbies, vacations, leaving work, etc.), voice announcements based on voice scenarios, or voice announcements based on the status of other subscribers. Through connection and control functions, it provides additional services such as hot-line, voice message delivery (message call), mobile phone call, and voice recording.

For example, as shown in FIG. 3, first, when an arbitrary caller makes a call to his terminal 18 (301), the originating exchange 19 extracts a called number (Called NO) and the corresponding destination exchange ( Route the call to 21).

Then, the destination exchange 21 uses the subscriber and service information stored and stored in association with the subscriber DB (or HLR of the wireless carrier) 15 of the wire carrier to determine whether the called number is a call back tone service subscription number. If the incoming call number is the incoming call control service subscription number, the incoming call number is recognized as the incoming call control call to associate the subscriber subscriber call control and transmission device (IP) 16 with the incoming call number.

Then, the subscriber subscriber call control and transmission device (IP) 16 determines whether the greeting of the called party is recorded (302), and if so, sends the greeting to the calling terminal (18). (303). However, if the greeting is not recorded, the caller sends the current state (driving, meeting, seminar, education, hobby, vacation, leaving work, etc.) registered by the called party to the calling terminal 18 (304). For example, if the called party registers his / her current status as 'driving', the announcement is sent as "I'm driving now."

In this way, the status of the called party (driving, meetings, seminars, training, hobbies, vacations, leaving work, etc.) can be spoken by voice (current status guide) or the greeting of the called party according to the voice scenario. It can provide additional services such as hot-line, voice message delivery (message call), mobile phone call, and voice recording.

For example, send a message to the calling terminal 18, "Press 1 for emergency call, 2 for message call, 3 for cell phone call, 4 for voice recording and 5 for end." (305).

According to the announcement, if the subscriber selects a service, the corresponding supplementary service is provided. For example, according to the announcement, when the subscriber selects the emergency call connection service (when "1" is pressed), the call is immediately relayed to the called terminal 20 (306). Therefore, the called terminal 20 announces the incoming call by the bell or vibration, and the call is established when the called subscriber receives.

In addition, according to the announcement, when the subscriber selects the message call service (when "2" is pressed), the message call announcement (for example, "record a beep", and after recording * or # button Press. ", Etc.) is transmitted, and the caller records the voice (307,311), and sends the corresponding voice message to the called terminal 20 so that the called subscriber can listen to it.

In addition, according to the announcement, when the subscriber selects the mobile phone calling service (when "3" is pressed), a calling announcement (for example, "leave a phone number to be contacted", etc.) is sent out. Accordingly, the caller leaves his or her contact (308,311), and sends the contact to the destination terminal 20 through SMS.

In addition, when the subscriber selects the voice recording service according to the announcement (when "4" is pressed), the recording announcement (for example, if a "beep" is heard, the * or # button after recording). Please press. ", Etc.), and the caller records the voice (309, 311), thereby notifying the destination terminal 20 that there is a voice message in the voicemail box.

Meanwhile, according to the announcement, when the subscriber selects termination (when "5" is pressed), according to the termination procedure (311), no additional call control service is provided.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

According to the present invention as described above, the telecommunications provider can supply the necessary facilities according to the automatic response control service usage rate, it is possible to integrate all the missed services provided by the operator, as well as the basic function to guide the status of the called subscriber to the calling subscriber In the event of emergency and emergency, routing to hot line and similar service provided by telecommunication service provider and contributing to vitalization of service use through implementation of basic function of communication which is more advanced in function to terminate after sending out simple announcement. It works.

In addition, according to the present invention, the communication service provider can be configured to control all the missed services collectively through the system, and the subscribers to use the service even if it is difficult to answer the call as well as other, It is possible to reduce the disadvantages from the incoming call ban on outgoing subscribers, and to cope with the increasing number of corporate advertisements and spam voices.

Claims (7)

In the communication system of the incoming call control service method, A service registration step of registering a service of a called subscriber with or without service setting (setting / cancellation) and current status (or greeting); When a call is originated (received number), the calling exchange extracts the called number and routes the call to a called exchange that manages the called number. A call routing step for linking an incoming call control and a sending device (IP); And The incoming call control and sending device (IP) voices the current status (or greeting) of the called party to the calling party, and routes the call to the corresponding called number according to the emergency call digit input of the calling party according to the call control announcement. Call Routing Steps Incoming call control service method according to the state of the called subscriber in a communication system comprising a. The method of claim 1, The incoming call control and sending device (IP) voices the caller's current status (or greeting) to the calling party, and the caller's voice message according to the caller's message call digit input according to the call control announcement. Call service steps sent to a mobile number Incoming call control service method according to the state of the called subscriber in the communication system further comprising. The method of claim 1, The incoming call control and sending device (IP) provides voice guidance to the calling party of the current status (or greeting) of the called party, and the caller's contact information according to the calling digit input of the calling party according to the call control announcement is sent to the corresponding called number. Invoking service phase to send Incoming call control service method according to the state of the called subscriber in the communication system further comprising. The method of claim 1, The incoming call control and sending device (IP) voices the caller's current status (or greeting) to the calling party and sends the voice message of the caller according to the caller's voice recording digit input according to the call control announcement. Save and voice mail service step of notifying the voice message incoming to the corresponding destination number Incoming call control service method according to the state of the called subscriber in the communication system further comprising. The method according to any one of claims 1 to 4, Service change notification step of real-time notification of the service change details to the called party number through SMS (SMS) Incoming call control service method according to the state of the called subscriber in the communication system further comprising. In a communication system having a processor for an incoming call control service according to the status of a called subscriber, A service registration function of registering a service of the called subscriber with or without service setting (setting / cancellation) and current status (or greeting); When a call is originated (received number), the calling exchange extracts the called number and routes the call to a called exchange that manages the called number. A call routing function for linking an incoming call control and a sending device (IP); And The incoming call control and sending device (IP) voices the current status (or greeting) of the called party to the calling party, and routes the call to the corresponding called number according to the emergency call digit input of the calling party according to the call control announcement. Call routing capability A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 6, Service change notification function to notify the corresponding destination number in real time of service change details through SMS (SMS) A computer-readable recording medium that records a program for further realization.

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