KR100770946B1 - Apparatus and method for providing video streaming service to sip user agent using session initiation protocol - Google Patents

Abstract

An apparatus for providing a video streaming service to a video telephony terminal to which a session initiation protocol is applied may request a call establishment request message from a video service terminal and a service providing server that provides content guidance information and content in a streaming manner according to a control signal from the video telephony terminal. And a service provisioning SIP application server for establishing a call between the video telephone terminal and receiving the information about the video telephone terminal to the service providing server and providing the information regarding the service providing server to the video telephone terminal. In response to the control signal from the service providing system and the video telephone terminal, upon receiving a call setup request message from the service guide server and the video telephone terminal providing guidance information for each service providing system to the video telephone terminal, Set up a call between and service information about the videophone And a service guide system including a service guide SIP application server for providing the service guide server and providing information on the service guide server to the video telephone terminal.

SIP, video call, streaming

Description

Apparatus and method for providing a video streaming service to a video telephony terminal to which a session initiation protocol is applied {APPARATUS AND METHOD FOR PROVIDING VIDEO STREAMING SERVICE TO SIP USER AGENT USING SESSION INITIATION PROTOCOL}

1 is a view schematically showing an embodiment of a video streaming service providing apparatus according to the present invention.

FIG. 2A is a diagram showing the configuration of a service guide device in the device shown in FIG. 1; FIG.

FIG. 2B is a diagram showing the configuration of a service providing device in the device shown in FIG. 1; FIG.

3 is a diagram illustrating a procedure for providing a video streaming service in the apparatus shown in FIG. 1.

Figure 4 is a diagram schematically showing another embodiment of a video streaming service providing apparatus according to the present invention.

5 is a diagram schematically showing another embodiment of a video streaming service providing apparatus according to the present invention.

The present invention relates to an apparatus and method for providing a video streaming service to a subscriber's terminal. Particularly, a session initiation for providing content such as a movie to a video telephone terminal to which a session initiation protocol (SIP) is applied is provided. An apparatus and method for providing a video streaming service to a video telephone terminal to which the protocol is applied.

Voice over IP (VoIP) technology, also called Internet telephony, has the advantage of being able to provide long-distance telephone services at a lower cost than conventional telephone networks and to accommodate various multimedia services of the internet network in voice telephone services. In addition, such a VoIP system has been studied in recent years in that various network technologies become the foundation technology for effectively developing into an integrated ALL IP network based on the Internet protocol.

Many existing VoIP systems have been implemented using ITU-T's H.323 signaling protocol. However, since H.323 is proposed to build a video conferencing system in a LAN environment where quality of service is not guaranteed, it has many problems in terms of scalability and comprehensiveness, and it is very difficult to implement due to its complexity. .

In this regard, the session initiation protocol (SIP) proposed by the IETF for creating and terminating multimedia sessions is simple to develop and implement, and has excellent service extensibility and comprehensiveness. In addition, since it is a protocol made based on the Internet network, it can easily accommodate various multimedia services of the Internet. Accordingly, a lot of systems based on SIP have been studied in relation to recent VoIP technology.

Korean Patent Application No. 10-2001-0008791 discloses a voice and video communication system on a web browser using SIP. As part of the VoIP technology, the system embeds SIP in a web browser, enabling simultaneous voice and video communications on the web browser. Data for video and audio communication is transmitted according to the communication connection sequence of the hypertext transfer protocol (HTTP). However, this system may be difficult for users who are not familiar with computer use in terms of voice and video communication using a web browser. In addition, since SIP is involved in call setup, there is no way to check whether communication is being made once a call is established. This is a problem when trying to provide a paid service such as a content providing service.

Korean Patent Application No. 10-2003-0026469 discloses a control method of a media channel in a SIP server and a communication system implementing the same. In this system, the SIP server intercepts and retransmits the media flowing between the user terminals in the middle, and stops the media transmission by forcibly terminating the media flowing between the user terminals when the charging ends. However, in such a system, since the SIP server has to play a role of transmitting media data, there is a problem that the load of the SIP server is increased.

In view of the above-described problems, the present invention provides an apparatus and method for providing a video streaming service to a video phone terminal to which a session initiation protocol is applied to smoothly provide multimedia content such as video content to a subscriber using a SIP terminal. For the purpose of

It is also an object of the present invention to provide an apparatus and method capable of performing charging for provided content without excessively using the resources of the system in such an apparatus and method.

According to one aspect of the present invention, there is provided an apparatus for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, the content guide image and the content image being controlled according to a control signal from the video telephone terminal. A service providing server providing the video telephone terminal in a streaming manner, a content guide database storing information on the content guide and providing the same to the service providing server, and storing the content and providing the same to the service providing server. When receiving a call setup request message (INVITE) from the content database and the video telephone terminal, a call is established between the video telephone terminal and the information on the video telephone terminal is provided to the service providing server. A service that provides information on a service providing server to the video telephone terminal. At least one service providing system having a providing SIP application server; And a service guide server for providing guide information for each service providing system to the video phone terminal according to a control signal from the video telephone terminal, and storing guide information for each service providing system, and storing the service information. A service guide database for providing this to the guide server, and upon receiving a call setup request message (INVITE) from the video telephone terminal, establishes a call between the video telephone terminal and the information on the video telephone terminal. Provided is a device for providing a video streaming service to a video telephony terminal comprising a service guiding system comprising a service guiding SIP application server for providing a service guiding server and providing information on the service guiding server to the video telephony terminal.

When the service guide SIP application server receives a call release request message (BYE) from the video telephone terminal, the service guide SIP application server releases a call established between the service guide SIP application server and the video telephone terminal and notifies the service guide server. The service guide server may provide a video streaming service to the video telephone terminal, characterized in that the provision of the guide image for the video telephone terminal is stopped.

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When the service providing SIP application server receives a call release request message (BYE) from the video telephone terminal, it releases the call established between the service providing SIP application server and the video telephone terminal, and notifies the service providing server of the call. It is preferable that the service providing server stops providing the content image to the video telephone terminal.

When a call is established between the video telephone terminal and the service providing SIP application server, the service providing server may periodically transmit information about the content provided to the video telephone terminal to the service providing SIP application server.

Preferably, the apparatus according to the present invention comprises a billing server for generating billing information for a subscriber using the videophone terminal based on the information about the content provided to the videophone terminal, and storing billing information for the subscriber. It further includes a billing database.

The service providing SIP application server may provide the charging server with information about the content provided to the video telephone terminal by the service providing server.

The control signal from the video telephone terminal may be data obtained by converting a DTMF tone of the video telephone terminal in a real time transport protocol (RTP) scheme.

Further, the information regarding the video telephone terminal provided by the service providing SIP application server to the service providing server may be an IP address of the video telephone terminal and a specific port number of the video telephone terminal.

According to another aspect of the present invention, a method for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, the method comprising: (a) a service guidance SIP application server requesting a call setup from the video telephone terminal; Receiving a message (INVITE), establishing a call between a service announcement SIP application server and the videophone terminal; (b) a service guiding SIP application server transmitting information on the video telephone terminal to which a call is set to a service guiding server, and transmitting information on a service guiding server to the video telephone terminal; (c) a service guidance server providing a service provider guide image to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal; (d) when the service providing SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service providing SIP application server and the video telephone terminal; (e) a service providing SIP application server transmitting information on the video telephone terminal to which a call is set to a service providing server, and transmitting information on a service providing server to the video telephone terminal; (f) a service providing server providing a content guide image in a streaming manner to the video telephone terminal according to a control signal from the video telephone terminal; And (g) if a content selection signal is received from the video phone terminal, providing a video streaming service to the video phone terminal by a service providing server providing the selected content to the video phone terminal in a streaming manner. do.

Preferably, after the step (c) is performed, (c-1) when the service guidance SIP application server receives a call release request message (BYE) from the video telephone terminal, between the service guidance SIP application server and the video telephone terminal. Releasing the call set in step of notifying the service information server; And (c-2) if the service guide server is notified that the call between the video phone terminal and the service guide SIP application server has been released, stopping the provision of the guide image for the video phone terminal.

Further, after the step (g) is performed, (g-1) when the service providing SIP application server receives the call release request message (BYE) from the video telephone terminal, the service setting SIP application server and the video telephone terminal are set up. Releasing the call and notifying the service providing server of the call; And (g-2) if the service providing server is notified that the call between the video telephone terminal and the service providing SIP application server has been released, the step of stopping the provision of the content image to the video telephone terminal may be performed.

Furthermore, the method according to the present invention (h) when a call is established between the video telephone terminal and the service providing SIP application server, transmits information on the content provided by the service providing server to the video telephone terminal to the service providing SIP application server. It is better to further include the steps. Step (h) is preferably performed periodically while a call is established between the videophone terminal and the serving SIP application server.

In addition, it is preferable that the step of generating the charging information for the subscriber using the video telephone terminal based on the information on the content provided by the service providing server to the video telephone terminal.

According to still another aspect of the present invention, there is provided an apparatus for providing a video streaming service to a video telephone terminal to which a session initiation protocol is applied, the guide image for a service provider providing a video streaming service according to a control signal from the video telephone terminal. A service guide server for providing the video telephone terminal; A service guide database storing guide information for a service provider providing a video streaming service and providing the same to the service guide server; When a call setup request message (INVITE) is received from the video phone, a call is set up with the video phone, information about the video phone terminal is provided to the service guide server, and information about the service guide server is provided. A service guidance SIP application server provided to the video telephone terminal; And upon receiving a call setup request message (INVITE) from the video telephone terminal, establishes a call between the video telephone terminal, transmits information about the video telephone terminal to a service provider side server, and sends the server to the service provider side server. An apparatus for providing a video streaming service to a video telephone terminal including a service providing SIP application server for providing information about the video telephone terminal is provided.

When the service guide SIP application server receives a call release request message (BYE) from the video telephone terminal, releases the call established between the service guide SIP application server and the video telephone terminal, and notifies the service guide server. Preferably, the service guide server stops providing the guide image for the video telephone terminal.

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Preferably, when the service providing SIP application server receives a call release request message (BYE) from the video telephone terminal, releases the call established between the service providing SIP application server and the video telephone terminal, and the service provider Notify the server on the server.

According to an aspect of the present invention, there is provided a billing server for generating billing information for a subscriber using the video phone terminal based on the information about the contents provided to the video phone terminal, and a billing database for storing billing information for the subscriber. It may further include.

When a call is established between the video telephone terminal and the service providing SIP application server, the service providing SIP application server periodically provides information about content provided by the service provider server to the video telephone terminal. You can contact the server.

The information about the video telephone terminal provided by the service providing SIP application server to the service provider side server is an IP address of the video telephone terminal and a specific port of the video telephone terminal, and the service provider side server and the video telephone terminal. It is preferable that the data transfer between them be made through the specific port.

According to still another aspect of the present invention, there is provided a video streaming service for a video telephone terminal to which a session initiation protocol (SIP) is applied, the method comprising: (a) a service guide SIP application server for setting up a call from the video telephone terminal; Receiving a request message (INVITE), establishing a call between a service announcement SIP application server and the video telephone terminal; (b) a service guiding SIP application server transmitting information on the video telephone terminal to which a call is set to a service guiding server, and transmitting information on a service guiding server to the video telephone terminal; (c) a service guidance server providing a service provider guide image to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal; (d) when the service providing SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service providing SIP application server and the video telephone terminal; And (e) transmitting, by the service providing SIP application server, information about the video telephone terminal to which the call is set up to the service providing server of the service provider, and transmitting information about the service providing server of the service provider to the video telephone terminal. A method of providing a video streaming service to a video telephone terminal is provided.

Here, after the step (c) is performed, (c-1) when the service guide SIP application server receives a call release request message (BYE) from the video telephone terminal, the service guide SIP application server and the video telephone terminal Releasing the call and notifying the service guide server; And (c-2) if the service guide server is informed that the call between the video phone terminal and the service guide SIP application server has been released, the step of stopping the provision of the guide image for the video phone terminal is preferably performed.

In addition, the method according to the present invention, after the step (e) is performed, (f) when the service providing SIP application server receives the call release request message (BYE) from the video telephone terminal, the service providing SIP application server and the image It is preferable to further include the step of releasing a call set up between the phone terminals, and notifying the service provider server of the service provider.

Preferably, (g) when a call is established between the video telephone terminal and the service providing SIP application server, the service providing SIP application server inquires of the service provider server of the service provider for information on the content provided to the video telephone terminal. The step is further performed. In addition, step (g) is preferably performed periodically while a call is established between the video telephone terminal and the service providing SIP application server.

Preferably, the step of generating billing information for the subscriber using the video telephone terminal based on the information about the content provided to the video telephone terminal.

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

1 schematically shows an embodiment of a video streaming service providing apparatus according to the present invention.

The apparatus 100 for providing a video streaming service includes a media service guide system 10 and a plurality of media service providing systems 20, 30, and 40. The media service guide system 10 and the media service providing systems 20, 30, and 40 are connected to the subscriber's video telephone terminal UA through an information communication network.

The information communication network means a data communication network in a comprehensive sense, which is connected to each other by various networks including a LAN, a WAN, an intranet, and similar internal networks, and provides access to the Internet. It should be understood to include satellite, wireless and wireless networks. Preferably, the information communication network means an integrated network based on an internet protocol, that is, a so-called ALL IP network.

The video telephone terminal UA refers to a terminal having a display unit and allowing video calls to be made between subscribers. In this embodiment, the video telephone terminal (UA) uses a session initiation protocol (SIP) as a signaling protocol, and uses a realtime transport protocol (RTP) to transmit voice and video traffic. . In addition, it is preferable to use a user datagram protocol (UDP) as a transmission protocol for transmitting SIP messages and RTP packets. Using UDP, a connectionless service as the transport protocol, reduces additional connection setup time when using a connection-oriented service, TCP (transmission control service), which reduces overall call setup time. Because it can.

The media service guide system 10 provides guide information on a video streaming service to a subscriber's video telephone terminal (UA). As shown in FIG. 2 (a), the media service guide system 10 includes a service guide SIP application server 12, a media service guide server 14, and a service guide database 16. . The SIP AS 12 is connected to the video telephone terminal UA via an information communication network, and is preferably connected via a soft switch S. The SIP AS 12 processes the call setup request message from the subscriber's video telephone terminal (UA) to establish a new session, and the media service guide server 14 provides the video telephone terminal (UA) to the video telephone terminal (UA) until the session is released. Allow service guidance to be performed. The media service guide server 14 receives information about a video telephone terminal UA in which a session is established from the SIP AS 12, and provides guide information on media service to a corresponding terminal UA. The guide information from the media service guide server 14 is provided to the video telephone terminal UA via the information communication network without passing through the SIP AS 12. The service guide database 16 stores information about various media service providing systems 20, 30, and 40.

The media service providing system 20, 30, 40 provides a subscriber with a video streaming service through a video telephone terminal. As shown in FIG. 2 (b), each of the media service providing systems 20, 30, and 40 includes a service providing SIP application server 22, a media service providing server 24, a content guide database 26 and contents. Database 28. The SIP AS 22 is connected to the video telephone terminal UA via an information communication network, and is preferably connected via a soft switch S. The SIP AS 22 processes the call setup request message from the subscriber's video telephone terminal (UA) to establish a new session, and the media service providing server 24 provides the video telephone terminal (UA) to the video telephone terminal (UA) until the session is released. Allow service guidance to be performed. The media service providing server 24 receives information about the video telephone terminal UA in which the session is established from the SIP AS 22, and provides the content guide information and the content itself to the corresponding terminal UA. The content guide information and the content data are provided to the video telephone terminal UA via the information communication network without passing through the SIP AS 22. The content guide database 26 stores information for guiding content included in each of the media service providing systems 20, 30, and 40, and various contents are stored in the content database 28.

Hereinafter, the data flow between the video streaming service providing apparatus 100 having the configuration according to the embodiment of the present invention described above and the subscriber's video telephone terminal UA will be described.

3 illustrates a data flow for providing an image streaming service in the apparatus shown in FIG. 1.

The subscriber's video telephone terminal (UA) transmits a SIP call setup request message (INVITE) to the service guide SIP AS 12 to request call setup (S101). For example, when a subscriber presses a video streaming service guidance phone number (eg, 700-0114), the video telephone terminal (UA) converts the DTMF tone generated at this time into a SIP call setup request message, thereby providing a service guidance SIP AS (12). ) Can be sent. Upon receiving the call setup request from the video telephone terminal (UA), the SIP AS 12 parses the message to recognize the subscriber's video telephone terminal (UA), and sends a call setup approval message (200 OK) to the video telephone terminal (UA). It transmits (S102). The video telephone terminal UA transmits a call acknowledgment message ACK to the SIP AS 12 in response to the call setup approval message, thereby establishing a new session between the video telephone terminal UA and the SIP AS 12. (S103).

When the session is established, the SIP AS 12 provides the subscriber's video telephone terminal UA with information about the media service guide server 14 (S104). Here, the information about the media service guide server 14 includes, for example, information such as the IP address of the media service guide server 14 and the number of a port to which the media service guide server 14 has transmitted data. . In addition, the SIP AS 12 provides the media service guide server 14 with information about the subscriber's video telephone terminal (UA) (S105). The information on the video telephone terminal UA includes information such as, for example, the IP address of the video telephone terminal UA or the port number where data is transmitted.

The media service guide server 14 transmits the media service guide information based on the information about the video telephone terminal UA received from the SIP AS 12. For example, the guide information is transmitted in an RTP packet. The guide information mainly includes information on the media service providing system, for example, a phone number (eg, 700-0100) for accessing a specific media service providing system. Meanwhile, the subscriber may transmit a control signal while searching for the media service guide information. For example, when the subscriber presses the “#” button of the video telephone terminal UA, the screen may move to the next guide screen or video, and when the subscriber presses the “*” button, the subscriber may move to the previous guide screen. In this case, the DTMF tones generated from the video telephone terminal UA are converted into RTP packets and transmitted (S106).

When the call release request message BYE is transmitted from the subscriber's video telephone terminal UA, the session is released through the same procedure as when the call is set up (S107). Although not shown, when the call release request message is received from the subscriber's video telephone terminal (UA), the SIP AS 12 notifies the media service guide server 14, and correspondingly the media service guide server 14 Stops the transmission of the guide information for the video telephone terminal (UA).

The subscriber's video telephone terminal (UA) transmits a SIP call setup request message (INVITE) to the service providing SIP AS 22 to request call setup (S201). For example, when a subscriber presses a telephone number (for example, 700-0100) that is recognized as a media service providing system, the video telephone terminal (UA) converts the DTMF tone generated at this time into a SIP call setup request message to provide a service SIP. May transmit to the AS 22. Upon receiving the call setup request from the video telephone terminal (UA), the SIP AS 22 parses the message to recognize the subscriber's video telephone terminal (UA), and sends the call setup approval message (200 OK) to the video telephone terminal (UA). It transmits (S202). The video telephone terminal UA sends a call acknowledgment message ACK to the SIP AS 22 in response to the call setup approval message, whereby a session is established between the video telephone terminal UA and the SIP AS 22. (S203).

When the session is established, the SIP AS 22 provides the information on the media service providing server 24 to the subscriber's video telephone terminal (UA) (S204), and mediates the information on the subscriber's video telephone terminal (UA). Provided to the service providing server 24 (S205). The media service providing server 24 transmits the content guide information based on the information about the video telephone terminal UA received from the SIP AS 22. Similarly, the subscriber can transmit a control signal while searching for the media service guide information (S206).

On the other hand, when the content selection signal is input from the video telephone terminal UA (S207), the media service providing server 24 transmits the selected content to the subscriber's video telephone terminal UA (S208). The content selection signal may be generated, for example, by the subscriber subsequently pressing a key of the video telephone terminal UA corresponding to the number of the content and a “#” button (eg 32 #). In addition, while the content is being transmitted, the subscriber's video telephone terminal UA may transmit a control signal (S208). For example, if the subscriber presses the “#” button of the video telephone terminal (UA), the content is fast forwarded. If the subscriber presses the “*” button, the content is rewinded at a fast speed. Press the "0" button to go back to the beginning of the content.

When the call release request message BYE is transmitted from the subscriber's video telephone terminal UA, the session is released through the same procedure as when the call is set up (S209). Although not shown, when the call release request message is received from the subscriber's video telephone terminal (UA), the SIP AS 22 notifies the media service providing server 24, and correspondingly, the media service providing server 24 Stops the transmission of the content guide information or the content for the video telephone terminal UA.

On the other hand, when a call is established between the video telephone terminal UA and the service providing SIP AS 12, the service providing server 22 periodically provides information on the contents provided to the video telephone terminal. 12). The information about the content includes, for example, information on the type of the content, the playback time of the content, the fee for providing the content, and the like.

Figure 4 shows another embodiment of a video streaming service providing apparatus according to the present invention.

The apparatus for providing a video streaming service according to the present embodiment includes a media service platform including a service guide SIP AS 212, a media service guide server 214, a service guide database 216, and a service providing SIP AS 218. . Here, the service guide SIP AS 212, the media service guide server 214, and the service guide database 216 are the service guide SIP AS 12 and the media service guide server 14 of the media service guide system in the above-described embodiments, respectively. ) And the service guidance database 16. However, the service guide database 216 stores information about the media service provider 300, not information about the media service providing system. The media service platform 200 and the media service provider 300 provide a video streaming service to a subscriber's video telephone terminal (UA) in connection with each other through an information communication network. The serving SIP AS 218 associates the media service platform 200 with the media service provider 300 and has substantially the same function as the serving SIP AS 22 of the above-described embodiment.

The media service provider 300 includes a media service providing server 310, a content guide database 320, and a content database 330. Similarly, the functions of each of these devices have substantially the same functions as the media service providing server 24, the content guide database 26 and the content database 28 in the above-described embodiment.

Although not shown, a plurality of media service providers 300 may exist, and a plurality of service providing SIP ASs 218 may also be provided.

Compared to the above-described embodiment, since the service providing SIP AS 218 has the same configuration except that the service providing SIP AS 218 is not provided at the media service provider side, the procedure for providing a video streaming service is described above. It is substantially the same as one embodiment.

5 shows another embodiment of a video streaming service providing apparatus according to the present invention.

This embodiment has the same configuration as the embodiment shown in FIG. 4 except that the charging server 220 and the charging database 222 are further provided in the media service platform 200a. Therefore, hereinafter, only matters related to billing of the service will be described.

In the present embodiment, when a call is established between the video telephone terminal UA and the service providing SIP AS 218, the service providing SIP AS 218 is connected to the service provider side server 310 to the video telephone terminal UA. Periodically inquire about the content being provided. Here, the information about the content includes information on the type of the content, the playback time of the content, the fee for providing the content, and the like. Next, the service providing SIP AS 218 transmits the information about the content being provided to the video telephone terminal UA to the charging server 220. The billing server 220 determines whether or not to bill the subscriber based on the received information, and stores the information on the billing database 222.

According to the present invention, there is provided an apparatus and method for providing a video streaming service capable of smoothly providing multimedia content such as video content to a subscriber using a SIP terminal.

In addition, according to the present invention, such an apparatus and method can perform billing for the provided content without excessively using the resources of the system.

Claims (29)

An apparatus for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, A service providing server for providing contents guide information and predetermined contents to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal, and storing the information on the contents guidance and providing the same to the service providing server. A content guide database to store content, a content database to store the content, and provide the same to the service providing server; and a call setup request message (INVITE) is received from the video telephone terminal, and a call is established between the video telephone terminal. At least one service providing system, comprising: a service providing SIP application server providing information on the video telephone terminal to the service providing server and providing information on the service providing server to the video telephone terminal; And A service guide server for providing guide information for each service providing system to the video phone terminal according to a control signal from the video telephone terminal, and storing guide information for each service providing system, and storing the service guide server. A service guide database for providing the service information, and a call setup request message (INVITE) is received from the video telephone terminal, and a call is established between the video telephone terminal and information about the video telephone terminal. A service guidance system comprising a service guidance SIP application server that provides a server and provides information on the service guidance server to the video telephone terminal. Apparatus for providing a video streaming service to a video telephone terminal comprising a. The method according to claim 1, When the service guide SIP application server receives a call release request message (BYE) from the video telephone terminal, releases the call set up between the service guide SIP application server and the video telephone terminal, and notifies the service guide server, The service guide server is a device for providing a video streaming service to a video telephone terminal, characterized in that to stop providing information for the video telephone terminal. delete The method according to claim 1, When the service providing SIP application server receives a call release request message (BYE) from the video telephone terminal, releases the call established between the service providing SIP application server and the video telephone terminal, and notifies the service providing server, And the service providing server stops providing content for the video telephone terminal. delete The method according to claim 1, When a call is established between the video telephone terminal and the service providing SIP application server, the service providing server periodically transmits information about the content provided to the video telephone terminal to the service providing SIP application server. Apparatus for providing a video streaming service to a video telephone terminal. The method according to claim 1, And a billing server for generating billing information for the subscriber using the video phone terminal based on the information about the contents provided to the video phone terminal, and a billing database for storing the billing information for the subscriber. Apparatus for providing a video streaming service to a video telephone terminal. The method according to claim 7, And the service provision SIP application server provides the billing server with information about the content provided to the video telephone terminal by the service provision server. The method according to claim 1, And a control signal from the video telephone terminal is data obtained by converting a DTMF tone of the video telephone terminal by a Realtime Transport Protocol (RTP) scheme. The method according to claim 1, The information regarding the video telephone terminal provided by the service providing SIP application server to the service providing server is an IP address of the video telephone terminal and a specific port number of the video telephone terminal, and between the service providing server and the video telephone terminal. The apparatus for providing a video streaming service to a video telephone terminal, characterized in that the data transmission is made through the specific port. A method for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, (a) when the service guide SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service guide SIP application server and the video telephone terminal; (b) a service guiding SIP application server transmitting information on the video telephone terminal to which a call is set to a service guiding server, and transmitting information on a service guiding server to the video telephone terminal; (c) a service guidance server providing a service provider guide image to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal; (d) when the service providing SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service providing SIP application server and the video telephone terminal; (e) a service providing SIP application server transmitting information on the video telephone terminal to which a call is set to a service providing server, and transmitting information on a service providing server to the video telephone terminal; (f) providing, by the service providing server, content guidance information to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal; And (g) if a content selection signal is received from the video telephone terminal, providing a content selected by the video telephone terminal in a streaming manner; Method for providing a video streaming service to a video telephone terminal comprising a. 12. The process according to claim 11, wherein after step (c) is performed: (c-1) When the service guidance SIP application server receives a call release request message (BYE) from the video telephone terminal, it releases the call established between the service guidance SIP application server and the video telephone terminal, and notifies the service guidance server. step; And (c-2) if the service guide server is notified that the call between the video call terminal and the service guide SIP application server has been released, further comprising the step of stopping the provision of guide information for the video call terminal. To provide video streaming services. 12. The process according to claim 11, wherein after step (g) is performed: (g-1) When the service providing SIP application server receives the call release request message (BYE) from the video telephone terminal, releases the call established between the service providing SIP application server and the video telephone terminal and informs the service providing server of the call release request. Making; And (g-2) if the service providing server is informed that the call between the video telephone terminal and the service providing SIP application server has been released, further comprising the step of stopping the provision of the content to the video telephone terminal. How to provide video streaming service. The method according to claim 11, (h) if the call is established between the video telephone terminal and the service providing SIP application server, the service providing server further comprises transmitting information on the content provided to the video telephone terminal to the service providing SIP application server. Providing a video streaming service to a video telephone terminal. The method according to claim 14, And said step (h) is performed periodically while a call between the videophone terminal and the service provisioning SIP application server is established. The method according to claim 14, And generating billing information for the subscriber using the video telephone terminal based on the information on the content provided to the video telephone terminal by the service providing server. . An apparatus for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, A service guide server for providing the video telephone terminal with guide information for a service provider for providing predetermined contents according to a control signal from the video telephone terminal; A service guide database storing guide information for a service provider providing the predetermined content and providing the same to the service guide server; When a call setup request message (INVITE) is received from the video phone, a call is set up with the video phone, information about the video phone terminal is provided to the service guide server, and information about the service guide server is provided. A service guidance SIP application server provided to the video telephone terminal; And When a call setup request message (INVITE) is received from the video telephone terminal, a call is established between the video telephone terminal, the information on the video telephone terminal is transmitted to a service provider side server, and the server is provided to the service provider side server. Service providing SIP application server that provides information about the video telephone terminal Apparatus for providing a video streaming service to a video telephone terminal comprising a. The method according to claim 17, When the service guide SIP application server receives a call release request message (BYE) from the video telephone terminal, releases the call established between the service guide SIP application server and the video telephone terminal, and notifies the service guide server. And the service guide server stops providing guide information for the video telephone terminal. delete The method according to claim 17, When the service providing SIP application server receives the call release request message (BYE) from the video telephone terminal, releases the call established between the service providing SIP application server and the video telephone terminal, and notifies the service provider side server. Apparatus for providing a video streaming service to a video telephone terminal, characterized in that. The method according to claim 17, And a billing server for generating billing information for the subscriber using the video phone terminal based on the information about the contents provided to the video phone terminal, and a billing database for storing the billing information for the subscriber. Apparatus for providing a video streaming service to a video telephone terminal. The method according to claim 21, When a call is established between the video telephone terminal and the service providing SIP application server, the service providing SIP application server periodically provides information about content provided by the service provider server to the video telephone terminal. Apparatus for providing a video streaming service to a video telephone terminal, characterized in that to contact the server. The method according to claim 17, The information about the video telephone terminal provided by the service providing SIP application server to the service provider side server is an IP address of the video telephone terminal and a specific port of the video telephone terminal, and the service provider side server and the video telephone terminal. Device for providing a video streaming service to a video telephone terminal, characterized in that the data transmission between the through the specific port. A method for providing a video streaming service to a video telephone terminal to which a session initiation protocol (SIP) is applied, (a) when the service guide SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service guide SIP application server and the video telephone terminal; (b) a service guiding SIP application server transmitting information on the video telephone terminal to which a call is set to a service guiding server, and transmitting information on a service guiding server to the video telephone terminal; (c) a service guidance server providing a service provider guide image to the video telephone terminal in a streaming manner according to a control signal from the video telephone terminal; (d) when the service providing SIP application server receives a call setup request message (INVITE) from the video telephone terminal, establishing a call between the service providing SIP application server and the video telephone terminal; And (e) the service providing SIP application server transmitting the information on the video telephone terminal to which the call is set to the service providing server of the service provider, and transmitting the information on the service providing server of the service provider to the video telephone terminal. Method for providing a video streaming service to a video telephone terminal comprising a. The method of claim 24, wherein after step (c) is performed: (c-1) When the service guidance SIP application server receives a call release request message (BYE) from the video telephone terminal, it releases the call established between the service guidance SIP application server and the video telephone terminal, and notifies the service guidance server. step; And (c-2) if the service guide server is notified that the call between the video call terminal and the service guide SIP application server has been released, further comprising the step of stopping the provision of the guide image for the video call terminal. To provide video streaming services. The method of claim 24, wherein after step (e) is performed: (f) When the service providing SIP application server receives the call release request message (BYE) from the video telephone terminal, releases the call established between the service providing SIP application server and the video telephone terminal, and notifies the service providing server of the service provider. And providing a video streaming service to a video telephone terminal. The method of claim 24, (g) when a call is established between the video telephone terminal and the service providing SIP application server, the service providing SIP application server further includes inquiring a service provider server of the service provider about information provided to the video telephone terminal. Method for providing a video streaming service to a video telephone terminal, characterized in that. The method of claim 27, Step (g) is performed periodically while a call is established between the video telephone terminal and the service provisioning SIP application server. The method of claim 27, And generating billing information for the subscriber using the video telephone terminal based on the information about the content provided to the video telephone terminal.

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