KR20060036255A - Method of providing announcement for no-answer in sip-based packet communication network and system thereof - Google Patents

Abstract

Disclosed is a method and system for non-call announcement service in a SIP-based packet communication network that provides a caller with a reason for not being able to receive a call when a user of a called terminal cannot make a call. The method comprises the steps of: a) when an INVITE message is generated from an originating terminal, checking whether the destination terminal of the invite message is a terminal subscribed to a non-call announcement service; b) if the called terminal is a terminal subscribed to a non-call announcement service, checking whether the non-call announcement service is activated for the called terminal; And c) transmitting a 200 OK message to the calling terminal and, when an ACK message is generated from the calling terminal as a response to the 200 OK message, transmitting the non-call announcement broadcast previously set by the user of the called terminal. Providing to the terminal.

Description

Method and system for providing announcement broadcast service in SIP based packet communication network TECHNICAL FIELD

1 is a configuration diagram illustrating a call unavailable announcement service system in a SIP-based packet network according to the present invention.

FIG. 2 is a signal flowchart illustrating an example of a process of registering a non-call announcement service in the system shown in FIG. 1.

FIG. 3 is a signal flow diagram illustrating an example of a process for providing a non-call announcement service in the system shown in FIG. 1.

<Explanation of symbols for main parts of drawing>

100, 200: terminal 300, 301: SIP server

400: application server 500: media server

600: location server

The present invention relates to a non-call announcement service service method and system therefor, and more particularly, to a call in a SIP-based packet communication network that provides a caller with a reason for not being able to receive a call when a user of the called terminal cannot make a call. The present invention relates to a broadcast service method and a system thereof.

SIP is being developed by the SIP Steering Group within the Internet Engineering Task Force (IETF). SIP has been published as IETF RFC 2543 and is currently proposed as a standard. If SIP-based packet multimedia service technology is used, multimedia information may be provided to the called party in various cases.

Previously, there was no method or service that could properly indicate the situation in the network when the called party was unable to make a call or because the call was difficult due to certain reasons (such as during a meeting or a meal). When the subscriber wants, the caller can be notified of the reason for the non-call for the incoming call to the caller by notifying the caller in an appropriate multimedia form, so that he / she can be unhappy about the rejection or the inability to call.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to disable a call in a SIP-based packet communication network for guiding the caller of a called terminal to multimedia in a SIP protocol-based packet communication network. The present invention provides a method and system for providing announcement service.

In the SIP-based packet communication network according to the first aspect of the present invention, a call-free announcement service method includes: a) when an INVITE message is generated from an originating terminal, a destination terminal of the invite message is not available. Checking whether the terminal subscribes to the broadcast service; b) if the called terminal is a terminal subscribed to a non-call announcement service, checking whether the non-call announcement service is activated for the called terminal; And c) transmitting a 200 OK message to the calling terminal and, when an ACK message is generated from the calling terminal as a response to the 200 OK message, transmitting the non-call announcement broadcast previously set by the user of the called terminal. Providing to the terminal.

Advantageously, the method further comprises d) providing a NOTIFY message to said called terminal informing of said provision of said non-call announcement to said calling terminal.

Also preferably, the method further includes e) stopping the provision of the non-call announcement to the calling terminal when the BYE message is generated from the calling terminal.

More preferably, the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user, and the condition / situation includes any one or more of the caller, caller group, and time zone. In addition, the non-call announcement broadcast is provided according to the RTP / RTCP protocol.

In the SIP-based packet communication network according to the second aspect of the present invention, a method for not providing announcement service includes: a) when an INVITE message is generated from an originating terminal, the announcement terminal of the invite message is not available. Checking whether the terminal subscribes to the service; b) if the called terminal is a terminal subscribed to a non-call announcement service, checking whether the non-call announcement service is activated for the called terminal; c) when a 200 OK message is transmitted to the calling terminal, and an ACK message is generated from the calling terminal as a response to the 200 OK message, the calling terminal pre-sets a non-call announcement broadcast previously set by the user of the called terminal. Providing to; d) providing a NOTIFY message to the called terminal informing of the provision of the non-call announcement to the calling terminal; And e) stopping the provision of the non-call announcement to the calling terminal when the BYE message is generated from the calling terminal.

Preferably, the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user, and the condition / situation includes any one or more of the caller, caller group, and time zone. Also preferably, the non-call announcement broadcast is provided according to the RTP / RTCP protocol.

In the SIP-based packet communication network according to the third aspect of the present invention, a method for not providing announcement service service includes: a) when the SIP server receives an INVITE message from an originating terminal, at the SIP server; Checking whether the called terminal is a terminal subscribed to a non-call announcement service and routing the invite message to an application server; b) when received by the application server receiving the invite message, whether the called terminal is a terminal subscribed to the non-call announcement service in the application server, and it is determined whether or not the announcement-free announcement service for the called terminal is activated. Confirming; c) As a result of the checking in step b), when the non-call announcement service is activated for the called terminal, guide broadcast code information for providing a non-call announcement broadcast according to a condition set for the called terminal is provided in a profile database. Querying; d) providing the announcement server with the announcement broadcast code set in the profile of the subscriber in the profile database when receiving the announcement announcement information; e) when the announcement server receives the announcement code from the profile database, requesting, by the application server, transmission of the non-call announcement announcement to a media server based on caller information and the announcement broadcast code; And f) transmitting, from the media server, the non-call announcement broadcast corresponding to the announcement broadcast code to the calling terminal in response to the request for no announcement announcement broadcast transmission.

Advantageously, the method further comprises g) providing a NOTIFY message from said application server to said called terminal informing of said provision of said non-call announcement to said calling terminal.

More preferably, the method further includes h) when the BYE message is generated from the originating terminal, requesting the media server to stop providing the non-call announcement in the application server.

Also preferably, the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user, and the condition / situation includes any one or more of the caller, caller group, and time zone. Preferably, the call unavailable announcement is provided according to the RTP / RTCP protocol.

In the SIP-based packet communication network according to the fourth aspect of the present invention, in the SIP-based packet network, when the incoming message is received from the originating terminal, the called terminal is connected to the non-call announcement service. A SIP server for checking whether the terminal is a subscribed terminal and for routing the invite message to an application server; In the case of receiving the invite message, the application server checks whether the called terminal subscribes to a call impossible announcement service, and confirms that the call impossible announcement service is activated for the called terminal. If the non-call announcement service is enabled for the call, the profile database queries the guide broadcast code information for providing the call announcement announcement according to the condition set for the called terminal, and the profile database is applied to the profile of the subscriber. An application server for requesting transmission of the non-call announcement broadcast to a media server based on caller information and the announcement broadcast code when receiving the set announcement code; And the media server for transmitting a non-call announcement broadcast corresponding to the announcement broadcast code to the calling terminal in response to a request for no-call announcement broadcast from the application server.

Preferably, the application server provides the called terminal with a NOTIFY message indicating the fact that the non-call announcement broadcast is provided to the calling terminal. In addition, when the BYE message is generated from the originating terminal, the application server requests the media server to stop providing the non-call announcement broadcast.                         

Also preferably, the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user, and the condition / situation includes any one or more of the caller, caller group, and time zone. Preferably, the media server provides the non-call announcement broadcast according to the RTP / RTCP protocol.

According to the present invention, when the called party cannot make a call in the SIP protocol based packet communication network, it is possible to provide a non-call announcement broadcast to the calling terminal in multimedia.

Hereinafter, the present invention will be described in more detail with reference to the following examples.

1 is a configuration diagram illustrating a call unavailable announcement service system in a SIP-based packet network according to the present invention.

FIG. 2 is a signal flowchart illustrating an example of a process of registering a non-call announcement service in the system shown in FIG. 1.

FIG. 3 is a signal flow diagram illustrating an example of a process for providing a non-call announcement service in the system shown in FIG. 1.

Referring to FIG. 1, a call announcement service service system in a SIP based packet network according to a first embodiment of the present invention may include at least one SIP server 300, 301, an application server 400, and a media server 500. ).

The non-call announcement service system according to the present invention may include one or more SIP servers, but this embodiment is described with one SIP server (300, 301), two SIP servers as needed for clarity. It describes with (300, 301). However, it will be understood by those skilled in the art that the present invention is not limited by the number of SIP servers 300. In addition, the implementation of the non-call announcement service in accordance with the present invention can be provided in both wired and / or wireless, it is necessary to note that it is possible in particular to subscribe and provide services through the WiBro network.

The SIP server 300 has a function defined in the SIP protocol. The SIP server 300 receives a setting request for activating the service while the terminating terminal 200 subscribes to the service. This can be done by the subscriber operating the menu key of the called terminal. When the service is activated, the user can set the service in various ways. For example, you can set up announcements for various situations, such as during a meeting, busy, battery discharged, sleeping, etc., such menus and contents may be variously generated and provided by a provider of the service, or You can also register and use your own content.

In addition, the setting of the service can be implemented using an event registration method using a subscription message according to the SIP method.

Upon receiving the request, the SIP server 300 knows that the request message should be routed to the application server 400 through a service triggering mechanism, and the application server 400 to process the service upon receiving the request. Route calls to.

The application server 400 receiving the service setting request authenticates whether the requester subscribes to the service and operates a service profile for each subscriber managed by itself to perform service setting according to the requested situation.

After completing the service activation and setting, the application server 400 transmits a response message (including a reason for failure in case of successful setting or failure-failure) to the called terminal 200 in response to the service request of the called terminal 200. In the case of the SIP method, the response may provide a setting result for an event registered by the called terminal 200 using a NOTIFY message. The SIP servers 300 and 301 finally transmit the response message to the called terminal 200, and the terminal 200 receiving the response message confirms that the service request is properly performed.

In addition, the SIP server 300 manages registration information and service profile information of a terminal registered for service according to the present invention. When the SIP server 300 receives an INVITE message from the calling terminal 100 according to the present invention, the called terminal 200 is not able to call the announcement service based on the service profile of the called terminal. Confirm that it is a subscribed terminal and route the invite message to the application server 400 in accordance with the present invention.

When the application server 400 receives an invite message from the SIP servers 300 and 301, the application server 400 checks whether the called terminal 200 subscribes to a call impossible announcement service. In addition, when the application server 400 receives the invite message, the application server 400 checks whether the non-call announcement service for the called terminal 200 is activated, and the non-call announcement service for the called terminal is activated. If there is, the guide database code information for providing a call announcement guidance broadcast according to the condition set for the called terminal 200 is inquired in the profile database. At this time, the profile database returns the preset broadcast multimedia code information according to the condition / condition of the corresponding subscriber. Here is an example of the announcement playback by the condition / situation.

1) Play the same reason (multimedia announcement) for all calls.

2) Play a different reason (multimedia announcement) due to different calling / caller groups.

3) Play different reason (multimedia announcement) due to time zone.

When receiving the announcement broadcast code set in the profile of the subscriber from the profile database, the application server 400 requests the media server 500 to transmit the announcement impossible call announcement based on the caller information and the announcement broadcast code. do. At this time, the application server 400 transmits the caller information (telephone number, IP address and Port information) and the corresponding announcement code information, which is a multimedia announcement broadcast destination, to the media server 500 to request a call announcement announcement.

The media server 500 transmits a non-call announcement broadcast corresponding to the announcement broadcast code to the calling terminal 100 in response to a request for transmission of a non-call announcement broadcast from the application server 400.

On the other hand, if the called terminal 200 is not registered in the SIP server 300, the SIP server 300 inquires the location server 600 of the location of the called terminal 200, the location server ( The invite message is transmitted to the SIP server 301 currently serving the called terminal 200 according to the location information from the 600.

In addition, when a 200 OK message is generated from the called terminal 200, the application server 400 requests the media server 500 to stop providing the multimedia call information, and the media server 500 stops the stop. Upon request, the provision of the caller information to the called terminal 200 is stopped.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail.

In order to help understanding, the present embodiment will be described assuming that the calling / calling terminals 100 and 200 are registered in the first SIP server 300 and the second SIP server 301, respectively. However, those skilled in the art will understand that there is no difference in its main operation even when both the originating and terminating terminals 100 and 200 are registered in a single SIP server.

First, the setting process of this service will be described with reference to FIG. 2. In the state in which the called terminal 200 subscribes to the service, a request is made to the second SIP server 301 to activate the service. At this time, the user of the called terminal 200 is operated by operating the menu key of the terminal, and activates the present service according to the reason that his call is impossible. For example, the user sets up announcements for various situations, such as during a meeting, during other tasks, during a battery discharge state, while sleeping, and such menus and contents may be variously generated and provided by a service provider. You can also register and use your own content. In addition, as described above, the service may be registered by using an event registration method using a subscription message (S21).

Upon receiving the request message from the called terminal 200, the second SIP server 301 confirms that the request message should be routed to the application server 400 according to the present invention through a service triggering mechanism, The call is routed to the application server 400 (S22).

The application server 400 receiving the service setting request authenticates whether the requester subscribes to the service and operates a service profile for each subscriber managed by itself to perform service setting corresponding to the requested situation (S23).

After the service activation and setting is completed, the application server 400 transmits a response message (including a reason for failure in case of setting success or failure-failure) to the called terminal 200 in response to the service request of the called terminal 200. At this time, in response to the SIP method, the response transmits the setting result for the event registered using the NOTIFY message to the called terminal 200. Then, the called terminal 200 confirms that the setting for the service request is properly performed (S24, S25).

Next, a call-free announcement service process of the called terminal 200 after the service setting is completed will be described with reference to FIG. 3.

When an invite message for a call with the called terminal 200 is generated from the calling terminal 100, the first SIP server 300 inquires of the location server 600 for the location of the called terminal 200. Upon receiving the location information of the called terminal 200 from the location server 600, the first SIP server 300 sends the invite message to a second SIP server 301 registered by the called terminal 200. Relays (S31, S32, S33).

Upon receiving the invite message through the first SIP server 300, the second SIP server 301 sends the invite message to the corresponding application server 400 according to the profile information of the called terminal 200. Routing (S34).

When the application server 400 receives the invite message routed from the second SIP server 301, the application server 400 has the called terminal 100 subscribed to the service and the service is activated. After checking the information, the guide database code information for providing a call unavailable announcement is queried in the profile database according to the condition set in the called terminal 200 (S35).

When the guide broadcast code information query is received from the profile database, the profile database provides the application server 400 with the guide broadcast code set in the profile of the called terminal (S36).

Upon receiving the announcement code from the profile database, the application server 400 requests the media server 500 to transmit the non-call announcement broadcast based on caller information and the announcement broadcast code (S37, S38). .

Subsequently, upon receiving a response from the media server 500 in response to the non-call announcement broadcast transmission request, the application server S39 transmits a 200 OK message to the calling terminal 100, and the 200 OK message. When an ACK message is generated from the calling terminal 100 as a response to the call, a call path is formed between the calling terminal 100 and the media server 500, and the user of the called terminal 200 is set in advance. One non-call announcement broadcast is provided to the calling terminal 100 (S39 to S45).

Meanwhile, the application server 400 provides a NOTIFY message to the called terminal 200 informing of the provision of the non-call announcement to the calling terminal 100 (S46 and S47).

Subsequently, when a BYE message is generated from the calling terminal 100, the application server 400 requests the media server 500 to stop providing the call impossible announcement to the calling terminal. Then, the media server 500 stops the transmission of the non-broadcast guide broadcast according to the request (S49 to S55).

Therefore, according to the above configuration, it is possible to provide the caller with a reason for not being called when the user of the called terminal cannot make a call.

Although the present invention has been described in detail by the above embodiments, the present invention is not limited thereto, and variations and improvements can be made without departing from the ordinary knowledge of those skilled in the art.

Claims (26)

a) when an invite message is generated from the calling terminal, checking whether the called terminal of the invite message is a terminal subscribed to a non-call announcement service; b) if the called terminal is a terminal subscribed to a non-call announcement service, checking whether the non-call announcement service is activated for the called terminal; And c) when a 200 OK message is transmitted to the calling terminal, and an ACK message is generated from the calling terminal as a response to the 200 OK message, the calling terminal pre-sets a non-call announcement broadcast previously set by the user of the called terminal. The method of claim 1, wherein the announcement is not possible in a SIP-based packet communication network. The method of claim 1 wherein the method is and d) providing the called terminal with a NOTIFY message informing the called terminal of the provision of the non-call announcement to the calling terminal. The method of claim 1 wherein the method is e) when the BYE message is generated from the originating terminal, stopping providing of the non-call announcement to the calling terminal; . 4. The non-call announcement broadcast service according to any one of claims 1 to 3, wherein the call unavailable announcement is generated according to a condition / situation set by the called terminal user. Way. 5. The method of claim 4, wherein the condition / situation includes any one or more of the caller, the caller group, and the time zone. 4. The method of claim 1, wherein the non-call announcement broadcast is provided according to the RTP / RTCP protocol. The method according to any one of claims 1 to 3, wherein the method f) If there is a request for activation of the non-call announcement service from the called terminal, it is authenticated whether the called terminal subscribes to the service, and the call-free announcement service is added to a service profile for each subscriber corresponding to the called terminal. And activating a non-call announcement broadcast service in a SIP-based packet communication network. a) when an invite message is generated from the calling terminal, checking whether the called terminal of the invite message is a terminal subscribed to a non-call announcement service; b) if the called terminal is a terminal subscribed to a non-call announcement service, checking whether the non-call announcement service is activated for the called terminal; c) when a 200 OK message is transmitted to the calling terminal, and an ACK message is generated from the calling terminal as a response to the 200 OK message, the calling terminal pre-sets a non-call announcement broadcast previously set by the user of the called terminal. Providing to; d) providing a NOTIFY message to the called terminal informing of the provision of the non-call announcement to the calling terminal; And e) when the BYE message is generated from the originating terminal, stopping the provision of the non-call announcement to the calling terminal. The method as claimed in claim 8, wherein the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user. 10. The method of claim 9, wherein the condition / situation includes any one or more of the caller, the caller group, and the time zone. The method as claimed in any one of claims 8 to 10, wherein the non-call announcement broadcast is provided according to the RTP / RTCP protocol. The method of any one of claims 8 to 10, wherein the method is f) If there is a request for activation of the non-call announcement service from the called terminal, the mobile station authenticates whether the called terminal subscribes to the service and provides the call-free announcement service to the subscriber-specific service profile corresponding to the called terminal. And activating a non-call announcement broadcast service in a SIP-based packet communication network. a) In case of receiving an INVITE message from a calling terminal in a SIP server, the SIP server checks whether the receiving terminal of the invite message is a terminal subscribed to a non-call announcement service, and receives the invite message. Routing to the application server; b) when received by the application server receiving the invite message, the application server confirms that the called terminal is a terminal subscribed to the non-call announcement service, and the non-call announcement service for the called terminal is activated. Doing; c) As a result of the checking in step b), when the non-call announcement service is activated for the called terminal, guide broadcast code information for providing a non-call announcement broadcast according to a condition set for the called terminal is provided in a profile database. Querying; d) providing the announcement server with the announcement broadcast code set in the profile of the subscriber in the profile database when receiving the announcement announcement information; e) when the announcement server receives the announcement code from the profile database, requesting, by the application server, transmission of the non-call announcement announcement to a media server based on caller information and the announcement broadcast code; And f) disabling a call in a SIP-based packet communication network, comprising: transmitting, by the media server, a non-call announcement broadcast corresponding to the announcement broadcast code to the calling terminal according to the request for no announcement announcement broadcast transmission; Announcement service method. The method of claim 13, wherein the method is g) a non-call announcement service in a SIP-based packet communication network, further comprising providing, by the application server, a NOTIFY message indicating the provision of the non-call announcement to the calling terminal to the called terminal. Way. The method according to claim 13 or 14, wherein the method h) when the BYE message is generated from the originating terminal, the application server further comprises the step of requesting the media server to stop the provision of the call unavailable announcement broadcast, characterized in that the call in the SIP-based packet communication network Not available announcement service method. 15. The method of claim 13 or 14, wherein the non-call announcement broadcast is generated according to a condition / situation set by the called terminal user. 17. The method of claim 16, wherein the condition / situation includes any one or more of the caller, the caller group, and the time zone. 16. The method of claim 13 or 15, wherein the non-call announcement broadcast is provided according to the RTP / RTCP protocol. 16. The method of any of claims 13-15, wherein the method is i) When there is a request for activation of the non-call announcement service from the called terminal, the mobile station authenticates whether the called terminal subscribes to the service, and provides the call-free announcement service to the subscriber-specific service profile corresponding to the called terminal. And activating a non-call announcement broadcast service in a SIP-based packet communication network. In a SIP-based packet network, A SIP server for confirming whether the called terminal is a terminal subscribed to the non-call announcement service and receiving the invite message from the calling terminal and routing the invite message to an application server; In the case of receiving the invite message, the application server checks whether the called terminal subscribes to a call impossible announcement service, and confirms that the call impossible announcement service is activated for the called terminal. If the non-call announcement service is enabled for the call, the profile database queries the guide broadcast code information for providing the call announcement announcement according to the condition set for the called terminal, and the profile database is applied to the profile of the subscriber. An application server for requesting transmission of the non-call announcement broadcast to a media server based on caller information and the announcement broadcast code when receiving the set announcement code; And And a media server for transmitting a non-call announcement broadcast corresponding to the announcement broadcast code to the calling terminal in response to a call-notification announcement broadcast transmission request from the application server. No announcement service system. The method of claim 20, wherein the application server And a NOTIFY message informing the called terminal of the fact that the call unavailable announcement is provided to the calling terminal. 22. The method of claim 20 or 21, wherein the application server And when the BYE message is generated from the originating terminal, requesting the media server to stop providing the non-call announcement service. 22. The system of claim 20 or 21, wherein the call unavailable announcement is generated according to a condition / situation set by the called terminal user. 24. The system of claim 23, wherein the condition / situation includes any one or more of the caller, caller group, and time zone. 22. The system of claim 20 or 21, wherein the media server provides the non-call announcement broadcast according to an RTP / RTCP protocol. 22. The method of claim 20 or 21, wherein the SIP server receives the request message to the application server according to a service triggering mechanism, upon receiving a message requesting activation of the non-call announcement service from the called terminal. When the application server receives the request message, the application server authenticates whether the called terminal subscribes to the service, and activates the non-call announcement service in the service profile for each subscriber corresponding to the called terminal. Call announcement service system in a SIP-based packet communication network.

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