KR100695095B1 - SIP Call Processing Method to Provide Video Mailbox Service - Google Patents

Abstract

The present invention relates to a SIP call processing method for providing a video mailbox service to a SIP video telephone terminal.

In the SIP call processing method of the present invention, when the calling CSCF receives a SIP INVITE message including screen size information, codec detail information, and terminal model information of the terminal from the calling terminal, it transmits a SIP 100 trying message to the calling terminal. A first step of delivering the SIP INVITE message to a called party CSCF; Transmitting, by the called CSCF, a SIP call forwarding message (181 call in being forwarded) to the calling terminal via the calling CSCF, and transmitting the SIP INVITE message to the video mailbox device; A third in which the video mailbox device sequentially transmits a SIP 100 trying message and a SIP 200 OK message to the called CSCF, and wherein the called CSCF transmits the SIP 200 OK message to the calling terminal via the calling CSCF; Steps; Performing, by the video mailbox device, a video mailbox service scenario using the RTP protocol with the calling terminal according to screen size information, codec detail information, and terminal model information of the terminal included in the SIP INVITE message; There is a technical feature made to include.

Description

SIP Call Signaling Method for Providing Video Mailbox Service

1 is a view showing an example of a network configuration for explaining a SIP call processing method for providing a video mailbox service of the present invention;

2 is a flowchart illustrating a video mailbox switching setting process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

3 is a flowchart illustrating a mailbox access process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

4 is a flowchart illustrating an unconditional call forwarding process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

5 to 7 are flowcharts illustrating a condition call forwarding process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

8 is a flowchart illustrating a video mailbox menu transmission process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

9 is a flowchart illustrating a video recording process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention;

10 is a flowchart illustrating a video reproducing process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10, 20, 30, 40: SIP video telephone terminal

11, 21, 31, 41: SIP video telephone network

50: IMS network

60: Video Mailbox Device (MMC)

70: Short Message Service Center (SMSC)

80: WEB / WAP

The present invention relates to a SIP call processing method for providing a video mailbox service. More particularly, when an outgoing video call of a SIP video telephone terminal is switched to a video mailbox, when a caller stores and confirms a video message, the video message is sent to the called party. The present invention relates to a SIP call processing method for providing a video mailbox service for notifying a arrival fact that a called party can access his / her video mailbox and check, store, and delete a message.

The video mailbox service is a service for recording and playing video and audio media streams for video phone subscribers, and the voice mailbox service (VMS) that has been provided for mobile phone subscribers. It is a similar concept.

And, it is currently provided in CDMA 2000 1xEV-DO network and WCDMA network, and the video mailbox service in the existing network is provided based on H.323 protocol and 3G-324M protocol among multimedia communication protocols.

However, in the video mailbox service based on the H.323 protocol or the 3G-324M protocol, the menu implementation method is dependent on the terminal, and thus, it is impossible to satisfy the requirements for various terminals. The disadvantage is that support is not available.

Meanwhile, the SIP protocol (Session Initiation Protocol) among the multimedia communication protocols is an HTTP-based protocol that is easy to expand and apply like the Internet and is easy to develop and integrate services as it is a text-type protocol. There is a need for providing a SIP protocol-based video mailbox service and a SIP call processing method therefor.

Accordingly, an object of the present invention is to provide a SIP call processing method for solving the above-mentioned disadvantages and problems of the prior art, such that a SIP protocol-based video mailbox service can be provided.

The object of the present invention is to provide a video protocol service based on a SIP protocol between a CSCF performing call and session processing for a video call in an IMS network, and a video mailbox device and a SIP video telephone terminal communicating with the CSCF based on a SIP protocol. A SIP call processing method for a video mailbox switching setting process for a video mailbox switching, wherein the CSCF receives a SIP INVITE message having a feature code, which is a combination of a special character and a number, for a subscriber service information processing of a video mailbox switching setting from a calling terminal as a called number. A first step of transmitting a corresponding SIP INVITE message to the video mailbox device and transmitting a SIP 100 trying message to the video telephone terminal; A second step of sequentially transmitting, by the video mailbox device, a SIP 100 trying message and a SIP 200 OK message to the CSCF when the SIP INVITE message is received from the CSCF; Upon receipt of the SIP 200 OK message from the video mailbox device, the CSCF transmits the SIP 200 OK message to the calling terminal and, upon receiving the SIP ACK message from the calling terminal, sends the corresponding SIP ACK message to the video mailbox device. Delivering a third step; In order to guide the video mailbox switch setting, the video mailbox device refers to the feature code in the SIP INVITE message received from the CSCF in step 2, and transmits the text and tone according to the feature code to the calling terminal using the RTP protocol. Transmitting a fourth step; A fifth step of, when the CSCF receives the SIP BYE message from the calling terminal, transmitting a SIP 200 0K message to the calling terminal and delivering a SIP BYE message to the video mailbox device; And transmitting the SIP 200 OK message to the CSCF by the video mailbox device. It is achieved by a SIP call processing method for providing a video mailbox service comprising a.

In addition, the object of the present invention is a SIP protocol-based video mailbox service between a CSCF performing call and session processing for video telephony in an IMS network, and a video mailbox device and a SIP video telephony terminal communicating with the CSCF based on a SIP protocol. A SIP call processing method for a video mailbox access process for providing, wherein the CSCF uses a specific number for a video mailbox access from a calling terminal as a called number and includes screen size information, codec detail information, and terminal model information of the terminal. Receiving a SIP INVITE message, transmitting a SIP 100 trying message to the calling terminal, and transmitting the SIP INVITE message to the video mailbox device; A second step of sequentially transmitting, by the video mailbox device, a SIP 100 Trying message and a SIP 200 OK message to the CSCF when the SIP INVITE message is received from the CSCF; Transmitting, by the CSCF, the SIP 200 OK message from the video mailbox device to the SIP video telephone terminal, and when the SIP ACK message is received from the calling terminal, transmitting the SIP ACK message to the video mailbox device; And performing, by the video mailbox device, a video mailbox service scenario using the calling terminal and the RTP protocol according to the screen size information, codec detail information, and terminal model information of the terminal. It is achieved by a SIP call processing method for providing a video mailbox service comprising a.

In addition, the object of the present invention is a SIP protocol based video mailbox service between a CSCF performing call and session processing for a video call in an IMS network, a video mailbox device and a SIP video telephone terminal communicating with the CSCF based on a SIP protocol. SIP call processing method for a video mailbox access process for providing, wherein the calling party's CSCF is the called party's number from the calling terminal, and includes the terminal's screen size information, codec detail information, and terminal model information. Receiving a message, transmitting a SIP 100 trying message to the calling terminal, transmitting the SIP INVITE message to a called CSCF, and requesting call establishment to the called terminal; The called party CSCF transmits a SIP call forwarding message (181 call in being forwarded) for notifying that the call is delivered to the video mailbox device to the calling terminal via the calling CSCF, and sends the call to the video mailbox device. Delivering the SIP INVITE message to the video mailbox device for delivery; The video mailbox device sequentially transmitting a SIP 100 trying message and a SIP 200 OK message to the called CSCF, and wherein the called CSCF transmits the SIP 200 OK message to the calling terminal via the calling CSCF; step; And performing, by the video mailbox device, a video mailbox service scenario using the calling terminal and the RTP protocol. It is achieved by a SIP call processing method for providing a video mailbox service comprising a.

Details of the above object and technical configuration of the present invention and the resulting effects thereof will be more clearly understood from the following detailed description based on the accompanying drawings.

First, FIG. 1 is a diagram illustrating an example of a network configuration for explaining a SIP call processing method for providing a video mailbox service according to the present invention.

As shown, the SIP call processing method of the present invention is an IMS (IP Multimedia Subsystem) network 50 that provides video telephony service through the SIP video telephone terminal 10, 20, 30, 40 and the SIP protocol, and the IMS. It is performed between the network 50 and the video mailbox device 60 (MMC) for providing a video mailbox service to the SIP video telephone terminals 10, 20, 30, and 40 through the SIP protocol.

The IMS network 50 is responsible for home subscriber server (hereinafter referred to as 'Home Subscriber Server') for storing user related information and service profile information of the user in the IMS network 50, and service control. It includes a call session control function (hereinafter referred to as "CCF (Call State Control Function)") for providing streaming service resource information.

Meanwhile, in the present invention, the SIP video telephone terminal targeted for the video mailbox service includes various terminals 10, 20, 30, and 40 which are serviced by various video telephone networks 11, 21, 31, and 41. CDMA 2000 1x EV-DO network 21 including a terminal 10 receiving a video telephone service through a wired Internet network 11, a base station (BTS), a base station controller (BSC), and a packet data service node (PDSN). The terminal 20 receives a video telephone service through the node 20, a node B (node-B), a radio network controller (RNC), a serving GPS service node (SGSN), including a gateway GPS support node (GGSN) WiBRO network including a terminal 30 receiving a video telephone service through a WCDMA (UMTS) network 31 and a WiBro base station (Radio Access Station, RAS) and an access control router (ACR) The terminal 40 using 41 is shown.

The CSCF of the IMS network 50 is the wired Internet network 11, the CDMA network 21, the WCDMA network 31, and the WiBro network 41, which are the respective video telephone service providing networks, and the IMS network 50 and the SIP message. Provides a SIP video call service to each terminal (10, 20, 30, 40) through the transmission and reception of, and forward the SIP video call to the video mailbox device 60 through the SIP message to provide the video mailbox service do.

On the other hand, the video mailbox device 60 is a short message service center 70 of the mobile communication network to notify each SIP video telephone terminal (10, 20, 30, 40) via a short message that the video message has arrived in the video mailbox In conjunction with the above, the user and the content provider and the like through the WEB / WAP (80) to be able to access using a terminal capable of WEB or WAP.

Each SIP video phone terminal 10, 20, 30, 40 is connected to the video mailbox device 60 by transmitting and receiving SIP messages with the video mailbox device 60 through the IMS network 50. By setting the RTP port for recording and playing the video and audio streams with the video mailbox device 60, when the video mailbox service scenario is executed, the video mailbox device 60 communicates with the video mailbox device 60 through the RTP protocol using an RTP protocol. do.

On the other hand, the video mailbox device 60, when the other party can not receive a video call (unconditional switching settings, power off, no answer, no answer, busy), the calling SIP video telephone terminal (10, 20) , 30, 40) can store a video / audio stream in the video mailbox of the other party, and when the other party is able to receive a video call, it informs that the video message has arrived through a short message, e-mail, blog, Allow the other party to check the video message through the video mailbox device.

Next, a video mailbox service is performed between the video mailbox device 60, the IMS network 50, and the SIP video phone terminals 10, 20, 30, and 40 as the SIP video phone terminals 10, 20, 30, and 40. A call processing process for providing will be described below with reference to FIGS. 2 to 10.

First, FIG. 2 is a flowchart illustrating a video mailbox switching setting process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention, wherein a subscriber is in a SIP video telephone terminal (10, 20, 30, 40). Unconditional divert setting (for example, * 60) to allow video calls that are sent to you to be transferred to the video mailbox unconditionally using the feature code, and conditional divert setting to be switched to the video mailbox if it cannot be received due to a busy call. ), A process of canceling the conversion setting (eg, * 52) for releasing the conversion to the video mailbox is shown.

As shown, a subscriber enters a feature code (e.g. * 60), a combination of special characters (e.g. *) and numbers (e.g. 60), and presses the video call button to set up a video mailbox switch. The terminal 10, 20, 30, 40 transmits the SIP INVITE message having the feature code as the called number to the CSCF (S101).

The CSCF recognizes that the called number in the SIP INVITE message received from the video telephone terminal 10, 20, 30, 40 is a feature code, and transfers the feature code to the HSS that manages the service information of the subscriber. The service information of the corresponding subscriber is processed according to the feature code, and the routing information to the video mailbox device 60 is transmitted to the CSCF (S103).

When the subscriber service information processing by the HSS is completed, the CSCF transfers the SIP INVITE message from the terminals 10, 20, 30, and 40 to the video mailbox device 60 (S105), and the video telephone terminal. The SIP 100 trying message is transmitted to (10, 20, 30, 40) (S107), and the video mailbox device 60 transmits the SIP 100 trying message to the CSCF (S109). Here, the SIP 100 trying message is a simple response message indicating that the SIP message is normally received.

Next, the video mailbox device 60 transmits a SIP 200 OK message to the CSCF (S111), and when the CSCF transmits a SIP 200 OK message to the SIP video telephone terminal 10, 20, 30, 40 ( S113, the video telephone terminal 10, 20, 30, 40 transmits a SIP ACK message as the final response to the video mailbox device 60 via the CSCF (S115) (S117).

The video mailbox device 60 refers to the feature code in the SIP INVITE message received from the CSCF in step S105 to guide the video mailbox switch setting, and displays the text and tone according to the feature code using the RTP protocol. The phone terminal 10, 20, 30, 40 is transmitted to (S119).

Here, the text is different according to the feature code, and if the feature code is a code for the unconditional (or conditional) transition setting, it may be a guide message such as "The unconditional (or conditional) transition setting is completed." In the case of an unset code, it may be a message like "Unset transition is complete." In addition, the tone may be a predetermined melody or tone of a predetermined sound to indicate completion of setting or desetting.

On the other hand, the terminal 10, 20, 30, 40 displays the text transmitted from the video mailbox device 60 on the screen, and outputs the tone through the speaker, so that the user confirms the text or tone The call can be terminated.

As the user terminates the call, the SIP video telephone terminal 10, 20, 30, 40 transmits a SIP BYE message indicating call termination to the CSCF (S121), and the CSCF transmits the terminal 10, 20, 30, 40) after transmitting the SIP 200 0K message (S123) and transmitting the SIP BYE message to the video mailbox device 60 (S125), the video mailbox device 60 sends a SIP 200 OK message to the CSCF. If it is transmitted (S127), the call processing for switching setting or switching setting cancellation is completed.

Next, FIG. 3 is a flowchart illustrating a mailbox access process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention, in which a user uses a specific feature code (eg, * 89) to access a mailbox. Your phone number, press the video call button, or enter your number as the called number and press the video call button, select your mailbox access menu from the menu in the terminal, or use the video message arrival notification SMS. The user can access the video mailbox, enter a specific feature code (e.g. * 77) and the party number to access the other's mailbox, press the video call button, or select another user's mailbox access menu from the terminal menu. In this case, the procedure for allowing access to a video mailbox of another person is shown.

As shown, when an input is made to access a mailbox from a user, the SIP video telephone terminals 10, 20, 30, and 40 use the CSCF to perform SIP INVITE including screen size information, codec detail information, and terminal model information of the terminal. The message is transmitted (S201).

Next, when the CSCF receives a SIP INVITE message having a specific number as a called number from the terminal 10, 20, 30, or 40 as a called number, the SIP 100 trying message is sent to the terminal 10, 20, 30, or 40. (S203), and forwards the called party number information to the HSS, and the HSS transmits routing information to the video mailbox device 60 to the CSCF according to the called party number information including the feature code and the like ( S205).

The CSCF forwards the SIP INVITE message to the video mailbox device 60 according to the routing information received from the HSS (S207). At this time, the SIP INVITE message should include the called party information, and the video mailbox device 60 is directly connected to the corresponding mailbox according to the called party information.

Next, the video mailbox device 60 sequentially transmits a SIP 100 Trying message and a SIP 200 OK message to the CSCF (S209, S211), and the CSCF sends a SIP 200 OK message from the video mailbox device 60 to the CSCF. When the SIP ACK message is received from the terminal 10, 20, 30, 40 (S215), the CSCF sends the corresponding SIP ACK. The message is transmitted to the video mailbox device 60 (S217).

Next, the video mailbox device 60 performs a video mailbox service scenario (recording, playing, deleting, etc. of a video / audio stream) using the RTP protocol with the terminals 10, 20, 30, and 40 (S219). . In this case, the video mailbox device 60 provides a video mailbox service by referring to screen size information, codec detail information, and terminal model information of the terminal included in the SIP INVITE message.

A video mailbox service scenario execution process will be described with reference to FIGS. 8 to 10.

As the execution of the video mailbox service scenario is completed, when the terminal 10, 20, 30, 40 transmits a SIP BYE message to the CSCF (S221), the CSCF transmits a SIP 200 OK message to the terminal ( S223), the SIP BYE message is transmitted to the video mailbox device 60 (S225).

When the SIP BYE message is received from the CSCF, the video mailbox device 60 terminates the video mailbox service by transmitting a SIP 200 OK message to the CSCF (S227).

4 to 7 are flowcharts illustrating a call forwarding process of a SIP call processing method for providing a video mailbox service according to an embodiment of the present invention. The call forwarding process in the case of switching is shown.

First, as shown in Figure 4, the call transfer process in the case of unconditional switching is set, first, the caller of the terminal CSCF for the call request from the originating terminal (10, 20, 30, 40) to the specific destination terminal; Upon receiving a SIP INVTIE message including size information, codec detail information, and terminal model information (A301), the calling CSCF transmits a SIP 100 trying message to the calling terminal 10, 20, 30, 40 (A303). ), And transmits the SIP INVITE message to the called party CSCF to request call setup to the called terminal (A305).

The called party CSCF checks the service profile information of the called terminal (B307), and determines whether to set the unconditional switch to the video mailbox device 60 for the outgoing call to the called terminal, and if the unconditional switch is set to unconditional. The SIP 100 trying message is transmitted to the calling CSCF (B309), and the SIP call forwarding message (181 call in being forwarded) for notifying that the call is delivered to the video mailbox device 60 is passed through the calling CSCF. (B311) and transmits to the calling terminal (10, 20, 30, 40) (B313).

Next, the called party CSCF transmits the SIP INVITE message to the video mailbox device 60 to transmit the call to the video mailbox device 60 (B315), and the reason why the call is switched in the SIP INVITE message is performed. Insert a tag (Reason Tag) that contains information about (for example, Unconditional).

Thereafter, when the video mailbox device 60 sequentially transmits a SIP 100 trying message and a SIP 200 OK message to the called party CSCF (C317 and C319), the called party CSCF passes through the calling party CSCF (C321). The SIP 200 OK message is transmitted to the calling terminal 10, 20, 30, 40 (C323).

Accordingly, the calling terminal 10, 20, 30, 40 performs the video mailbox service scenario using the video mailbox device 60 and the RTP protocol (D325), and as the execution of the video mailbox service scenario is completed When the calling terminal 10, 20, 30, 40 sends a SIP BYE message to the calling CSCF (E327), the calling CSCF sends a SIP 200 OK to the calling terminal 10, 20, 30, 40. The message is transmitted (E329), and the SIP BYE message is transmitted to the called party's CSCF (E331).

Next, when the called party CSCF transmits a SIP 200 OK message to the calling party CSCF (E333), and sends a SIP BYE message to the video mailbox device 60 (E335), the video mailbox device 60 sends the message. The SIP 200 OK message is transmitted to the called party's CSCF (E337) to complete the video mailbox service.

Meanwhile, in the call forwarding process according to the unconditional switching setup of FIG. 4, process A (A301 to A305), process C (C317 to C323), process D (D325), and process E (E327 to E337) are described below with reference to FIGS. 5 to 5. The same applies to the embodiment of FIG. 7, and accordingly, FIGS. 5 to 7 omit the same processes A, C, D, and E as shown in FIG. 4, and show only different B processes according to the call forwarding reason. .

5 to 7 show an example in which the called terminal is set to condition switching. FIG. 5 shows a case where the called terminal is in a call, FIG. 6 shows a case where there is no response from the called terminal, and FIG. The case of no response is shown.

First, a call processing process when the called terminal is in a call will be described with reference to FIG. 5.

After the called party CSCF transmits a SIP 100 trying message to the calling party CSCF (B401), and sends a SIP INVITE message to the called terminal (B403), SIP 486 Busy indicating that the called terminal is currently busy. When the message is transmitted to the called party CSCF (B405), the called party CSCF checks the service profile information of the called party (B407), and the video mailbox device when the called terminal is busy on the outgoing call to the called terminal. It is determined whether the condition switching to 60 is set.

As a result of the determination, in the case of the condition change setting, the called party CSCF sends the SIP call forwarding message (181 call in being forwarded) to inform the caller that the video call attempted from the calling terminal is transmitted to the video mailbox device 60. Via the side CSCF (B409) and transmits to the calling terminal (B411), and sends the SIP INVITE message to the video mailbox device 60 (B413).

In this case, the called party CSCF inserts a tag including information on a reason (for example, busy) in the SIP INVITE message transmitted to the video mailbox device 60.

Next, a call processing process when there is no response from the called terminal will be described with reference to FIG. 6.

As shown, when the called party's CSCF transmits a SIP 100 trying message to the calling party's CSCF (B501), and sends a SIP INVITE message to the called party's terminal (B503), the called terminal receives the call if the call is available. The SIP 100 trying message and the SIP 180 ring message are sequentially transmitted to the side CSCF (B505 and B507). Accordingly, the called terminal notifies the call of the call through a bell or vibration so that the called party can answer the call.

Next, the called party CSCF transmits a SIP 180 ring message for notifying paging to the called terminal through the calling CSCF (B509) to the calling terminal 10, 20, 30, and 40 (B511). When the calling party CSCF receives the SIP PRACK message from the calling terminal 10, 20, 30, or 40 (B513), it sends it to the called terminal via the called CSCF (B515) (B517).

Accordingly, when the called terminal transmits a SIP 200 OK message to the called CSCF (S519), the called CSCF sends the SIP 200 to the calling terminals 10, 20, 30, and 40 via the calling CSCF (B521). Deliver the OK message (B523).

On the other hand, if there is no response from the called terminal within a certain time and the time is exceeded, the called CSCF sends a SIP CANCEL message requesting call cancellation to the called terminal (B524), and a SIP 200 OK message from the called terminal. When receiving a SIP 487 request canceled message indicating that the call has been canceled (B525, B527), by checking the service profile information of the called terminal (B529), when the called terminal is not answered to the outgoing call to the called terminal video mailbox It is determined whether the condition switching to the device 60 is set.

As a result of the determination, when the condition switching is set, the called CSCF sends a SIP call forwarding message (181 call in being forwarded) to the calling terminal 10, 20, 30, 40 via the calling CSCF (B531). It transmits (B533), and transmits the SIP INVITE message to the video mailbox device 60 (B535).

In this case, the called party CSCF inserts a tag including information on a reason (eg, No Answer) in the SIP INVITE message transmitted to the video mailbox device 60.

Next, a call processing process when the answer is impossible due to the power of the called terminal being turned off, will be described with reference to FIG. 7.

As shown in FIG. 7, when a SIP INVITE message is received from the calling CSCF, the called CSCF sends a SIP 100 trying message to the calling CSCF (B601), and sends a SIP INVITE message to the called terminal (B603). ).

Thereafter, when the called party CSCF does not receive the SIP 100 trying message from the called terminal within a certain response time, the called terminal recognizes that the response time has been exceeded (B605) and checks the service profile information of the called terminal (B607). ), If the called terminal is unable to answer the outgoing call to the called terminal, it is determined whether the condition switching to the video mailbox device is set.

In the case of the condition switching setting, the called party CSCF sends a SIP call forwarding message (181 call in being forwarded) for notifying call forwarding via the calling party CSCF (B609) to the calling terminal 10, 20, 30, 40. ), And transmits the SIP INVITE message to the video mailbox device 60 (B613).

At this time, the called party CSCF inserts a tag including information on a reason (eg, a time out) for switching a call in a SIP INVITE message transmitted to the video mailbox device 60.

Next, FIGS. 8 to 10 are diagrams for explaining a video mailbox service scenario execution process, FIG. 8 is a video mailbox menu transmission process, FIG. 9 is a video recording process, and FIG. 10 is a video playback process.

First, as shown in FIG. 8, when the outgoing call of the outgoing SIP video telephone terminal 10, 20, 30, 40 is set to the video mailbox device 60, the video mailbox device 60 through the CSCF (S701). In step S703, the SIP UPDATE message is transmitted to the calling terminal 10, 20, 30, 40.

In this case, the SIP UPDATE message includes information for ON / OFF (OFF) control of the video / audio transmission and reception port, the originating terminal (10, 20, 30, 40) is included in the SIP UPDATE message According to the information, the transmission / reception port of the video / audio is turned on / off.

Next, when the calling terminal 10, 20, 30, 40 transmits the SIP 200 OK message to the video mailbox device 60 through the CSCF (S705) (S707), the video mailbox device 60 Send a SIP MESSAGE message including video mailbox menu information (eg, 1. video recording, 2. call number ..) to the calling terminal (10, 20, 30, 40) through the CSCF (S709) (S711). .

The calling terminal 10, 20, 30, 40 should be able to display the video mailbox menu information received through the SIP MESSAGE message from the video mailbox device 60 on the screen. At this time, the video mailbox menu information is delivered to the terminal as a message in the form of xHTML script, the terminal displays the menu by driving the xHTML browser.

Next, when the calling terminal 10, 20, 30, 40 transmits the SIP 200 OK message to the video mailbox device 60 through the CSCF (S713) (S715), the video mailbox device 60 is the Through the calling terminal (10, 20, 30, 40) and the set RTP video / audio port to play the menu announcement to the calling terminal (10, 20, 30, 40) (S717), the calling terminal (10) , 20, 30, and 40 display the video mailbox menu information on the screen according to the information included in the previously received SIP MESSAGE message and at the same time output the voice message of the corresponding menu guide.

Next, the video mailbox device 60 receives corresponding DTMF information according to a specific digit input by the user from the calling terminal 10, 20, 30, or 40 through the RTP port (S719), and through the CSCF. When receiving a SIP INFO message including the information input by the user (S723), through the CSCF (S725) and transmits a SIP 200 OK message to the calling terminal (S727).

The SIP INFO message is a message for transmitting information input by the user (10, 20, 30, 40) to the video mailbox device 60, the calling terminal (10, 20, 30, 40) is a password, Text information such as e-mail and URL information such as blog address are included in a SIP INFO message and transmitted.

Next, according to the user input information included in the SIP INFO message, the video mailbox device 60 starts recording when the corresponding video mailbox menu information (eg, 'beep' sounds) and presses '#' when finished. In step S729, a SIP MESSAGE message including a message is transmitted to the calling terminal 10, 20, 30, or 40 through the CSCF.

Accordingly, when the calling terminal 10, 20, 30, 40 transmits a SIP 200 OK message to the video mailbox device 60 through the CSCF (S733) (S735), the video mailbox device 60 The menu announcement is played back to the calling terminal 10, 20, 30, 40 and the calling terminal 10, 20, 30, 40 through the set RTP video / audio port (S737), and the calling terminal 10 , 20, 30, and 40 display the video mailbox menu information on the screen and output the menu announcements at the same time.

9 is a diagram illustrating a video recording process.

As shown, when the outgoing call of the calling terminal (10, 20, 30, 40) is set to the video mailbox device 60, the video mailbox device 60 through the CSCF (S801) the calling terminal (10, 20) , 30, 40) to transmit the SIP UPDATE message (S803).

In this case, the SIP UPDATE message includes information for the ON (ON) / OFF (OFF) control of the source and terminal 10, 20, 30, 40 and the video / audio transmission and reception port, the source terminal (10, 20) , 30 and 40 turn on / off a transmission / reception port of video / audio according to the information included in the SIP UPDATE message.

Next, the calling terminal 10, 20, 30, 40 transmits the SIP 200 OK message to the video mailbox device 60 through the CSCF (S805) (S807), and receives the audio / video stream input from the user. Record to the video mailbox device 60 through the RTP protocol (S809).

The video mailbox device 60 receives corresponding DTMF information according to a specific digit input by the user from the calling terminal 10, 20, 30, 40 through the RTP port (S811), and through the CSCF (S813). When receiving the SIP INFO message including the information input by the user (S815), through the CSCF (S817) and transmits the SIP 200 OK message to the calling terminal (10, 20, 30, 40) (S819).

Here, the SIP INFO message is a message for transmitting information input by the user (10, 20, 30, 40) to the video mailbox device 60, the originating terminal (10, 20, 30, 40) In order to transmit the recorded video / audio stream to the called terminal, text information such as an email input by a user, URL information such as a blog address, and the like are transmitted in a SIP INFO message.

The video mailbox device 60 transmits the video / audio stream recorded by the user, that is, the fact that the video message has arrived, to the other party in a short message, or loads the content on the SIP MESSAGE to the other party.

Next, the video mailbox device 60 transmits audio / video on / off information to the announcement message according to the menu transmission to the calling terminal 10, 20, 30, 40 via the CSCF (S821). The SIP UPDATE message is transmitted (S823).

When the calling terminal 10, 20, 30, 40 transmits a SIP 200 OK message to the video mailbox device 60 through CSCF (S825) (S827), the video mailbox device 60 displays the xHTML video mailbox menu information. SIP MESSAGE message including (eg, 1. storage, 2. confirmation, 3. re-recording, 4. higher menu ...) through the CSCF (S829) the calling terminal (10, 20, 30, 40) (S831), when the calling terminal (10, 20, 30, 40) transmits a SIP 200 OK message to the video mailbox device 60 through the CSCF (S833) (S835), the video mailbox device 60 plays a menu announcement with the calling terminal 10, 20, 30, 40 and the calling terminal 10, 20, 30, 40 through the RTP video / audio port (S837), and the calling terminal 10, 20, 30, and 40 display the video mailbox menu information on the screen using an xHTML browser and simultaneously output the menu announcements.

Next, FIG. 10 shows a call processing process for a video reproduction process.

As shown, when the SIP video telephone terminal 10, 20, 30, 40 is connected to the video mailbox device 60 to check the video message, the video mailbox device 60 is the CSCF (S901) The SIP UPDATE message is transmitted to the calling terminal 10, 20, 30, 40 (S903).

In this case, the SIP UPDATE message includes information for ON / OFF (OFF) control of the video / audio transmission and reception port, the originating terminal (10, 20, 30, 40) is included in the SIP UPDATE message According to the information, the transmission / reception port of the video / audio is turned on / off.

Next, when the calling terminal 10, 20, 30, 40 transmits a SIP 200 OK message to the video mailbox device 60 through the CSCF (S905) (S907), the video mailbox device 60 is connected. The audio / video stream recorded in the video mailbox is reproduced to the calling terminal 10, 20, 30, 40 through the RTP protocol (S909).

The video mailbox device 60 receives corresponding DTMF information according to a specific digit being input by the user from the calling terminal 10, 20, 30, or 40 through the RTP port (S911), and through the CSCF (S913). When receiving a SIP INFO message including the information input by the user (S915), through the CSCF (S917) and transmits a SIP 200 OK message to the calling terminal (10, 20, 30, 40) (S919).

In this case, when a separate text input or direction key input is not performed by the user, steps S913 to S919 may be omitted.

Next, the video mailbox device 60 transmits a SIP UPDATE message for setting an RTP port for reproducing the announcement according to the menu transmission to the calling terminal (10, 20, 30, 40) via the CSCF (S921). It transmits (S923).

When the calling terminal 10, 20, 30, 40 transmits the SIP 200 OK message to the video mailbox device 60 through CSCF (S925) (S927), the video mailbox device 60 displays the video mailbox menu information ( Example: 1. Send a SIP MESSAGE message including 1. Replay, 2. End, 3. High Menu ...) to the calling terminal 10, 20, 30, 40 through the CSCF (S931). When the calling terminal 10, 20, 30, 40 transmits a SIP 200 OK message to the video mailbox device 60 through the CSCF (S933) (S935), the video mailbox device 60 sends the call. Through the terminal 10, 20, 30, 40 and the set RTP video / audio port to play the menu announcement to the calling terminal (10, 20, 30, 40) (S937), the calling terminal (10, 20) , 30, 40) displays the video mailbox menu information on the screen and outputs the menu announcements at the same time.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Therefore, according to the SIP call processing method for providing a video mailbox service of the present invention, it is possible to provide a video mailbox service through the transmission and reception of SIP messages between a SIP video phone terminal, an IMS network and a video mailbox device.

Claims (23)

Process of setting up video mailbox switching for providing SIP protocol based video mailbox service between CSCF performing call and session processing for video telephony in IMS network, video mailbox device and SIP video telephone terminal communicating with CSCF based on SIP protocol SIP call processing method for When the CSCF receives a SIP INVITE message having a feature code, which is a combination of a special character and a number for the subscriber service information processing for the video mailbox switching setting, from the calling terminal that wants to convert the incoming video call to the video mailbox, Transmitting a SIP INVITE message to the video mailbox device and transmitting a SIP 100 trying message to the video telephone terminal; A second step of sequentially transmitting, by the video mailbox device, a SIP 100 trying message and a SIP 200 OK message to the CSCF when the SIP INVITE message is received from the CSCF; Upon receipt of the SIP 200 OK message from the video mailbox device, the CSCF transmits the SIP 200 OK message to the calling terminal and, upon receiving the SIP ACK message from the calling terminal, sends the corresponding SIP ACK message to the video mailbox device. Delivering a third step; In order to guide the video mailbox switch setting, the video mailbox device refers to the feature code in the SIP INVITE message received from the CSCF in step 2, and transmits the text and tone according to the feature code to the calling terminal using the RTP protocol. Transmitting a fourth step; A fifth step of, when the CSCF receives the SIP BYE message from the calling terminal, transmitting a SIP 200 0K message to the calling terminal and delivering a SIP BYE message to the video mailbox device; And A sixth step of transmitting, by the video mailbox device, a SIP 200 OK message to the CSCF; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method of claim 1, The first step, When the CSCF receives a SIP INVITE message having a feature code, which is a combination of a special character and a number, for a subscriber service information processing for video mailbox switching setting from a calling terminal as a called number, an HSS (home subscriber) managing service information of a subscriber Transmitting the feature code to a server); Processing, by the HSS, service information of the corresponding subscriber according to the feature code, and transmitting routing information to the video mailbox device to the CSCF; And When the subscriber service information processing by the HSS is completed, transmitting, by the CSCF, a SIP INVITE message from the calling terminal to the video mailbox device, and transmitting a SIP 100 trying message to the video telephone terminal; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method according to claim 1 or 2, The feature code, which is a combination of special characters and numbers for subscriber service information processing for the video mailbox switching setting, is a feature code for setting the video mailbox switching unconditionally, and a feature code and video mailbox switching setting canceling for the conditional video mailbox switching setting. SIP call processing method for providing a video mailbox service, characterized in that any one of the feature code for. In a video mailbox access process for providing a SIP protocol based video mailbox service between a CSCF performing call and session processing for a video call in an IMS network, and a video mailbox device and a SIP video telephone terminal communicating with the CSCF based on a SIP protocol. SIP call processing method for When the CSCF receives a SIP INVITE message including the screen size information, codec detail information, and terminal model information of the terminal as a specific number for accessing the video mailbox, from the calling terminal to access the video mailbox, Transmitting a SIP 100 trying message to a terminal and transmitting the SIP INVITE message to the video mailbox device; A second step of sequentially transmitting, by the video mailbox device, an SIP 100 Trying message and a SIP 200 OK message to the CSCF in response to receiving an INVITE message from the CSCF; Transmitting, by the CSCF, the SIP 200 OK message from the video mailbox device to the SIP video telephone terminal, and when the SIP ACK message is received from the calling terminal, transmitting the SIP ACK message to the video mailbox device; And A fourth step of the video mailbox device performing a video mailbox service scenario using the RTP protocol with the calling terminal according to screen size information, codec detail information, and terminal model information of the terminal in the SIP INVITE message; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method of claim 4, wherein The first step, When the CSCF receives the SIP INVITE message from the calling terminal, transmitting a SIP 100 trying message to the calling terminal, and transmitting the called number information to an HSS (home subscriber server) managing service information of a subscriber; Transmitting, by the HSS, routing information to the video mailbox device to the CSCF according to the called party number information; And Forwarding, by the CSCF, the SIP INVITE message to the video mailbox device according to the routing information received from the HSS; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method of claim 4, wherein In the first step, If the specific number for accessing the video mailbox, which is the SIP INVITE message called number from the originating terminal, is a feature code that is a combination of special characters and numbers for accessing the video mailbox, the CSCF provides MIN information of the originating terminal. SIP call processing method for providing a video mailbox service, characterized in that the transmission to include the SIP INVITE message to the video mailbox device. The method of claim 4, wherein In the first step, When the specific number for accessing the video mailbox, which is the SIP INVITE message called number from the calling terminal, is the identification number (MIN) of the calling terminal that sent the SIP INVITE message, The CSCF is a SIP call processing method for providing a video mailbox service, characterized in that for transmitting the identification number (MIN) information of the calling terminal in a SIP INVITE message to the video mailbox device. The method of claim 4, wherein In the first step, A specific number for accessing a video mailbox, which is a SIP INVITE message destination number from the calling terminal, is a feature code that is a combination of special characters and numbers for accessing a video mailbox of another person, and an identification number (MIN) of another SIP video telephone terminal. If included, the CSCF SIP video processing for providing a video mailbox service, characterized in that for transmitting the identification number (MIN) information of the SIP video telephone terminal of the other person included in the SIP INVITE message to the video mailbox device; Way. The method according to any one of claims 4 to 8, The fourth step, The video mailbox device transmits a SIP UPDATE message including information for ON / OFF control of a video / audio transmission / reception port to the calling terminal through the CSCF, so that the calling terminal sends the SIP UPDATE message. A fourth step of turning on / off a transmission / reception port of the video / audio according to the information included in the information; If the calling terminal transmits a SIP 200 OK message to the video mailbox device through the CSCF, the video mailbox device sends a SIP MESSAGE message including xHTML video mailbox menu information to the calling terminal through the CSCF; -2 steps; When the calling terminal transmits a SIP 200 OK message to the video mailbox device through the CSCF, the video mailbox device plays the menu announcement to the calling terminal through the RTP video / audio port set with the calling terminal. According to the information included in the SIP MESSAGE message received in step 4-2, the caller terminal displays the video mailbox menu information on the screen using an xHTML browser and outputs the corresponding menu announcements. Step 4-3; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method of claim 9, After step 4-3, When the video mailbox device receives the corresponding DTMF information as a specific digit is input by the user through the RTP port from the calling terminal, and receives the SIP INFO message including the information input by the user through the CSCF, the CSCF 4-4, transmitting a SIP 200 OK message to the calling terminal through the call; A step 4-5 of the video mailbox device transmitting a SIP MESSAGE message including corresponding xHTML video mailbox menu information to the calling terminal through the CSCF according to user input information included in the SIP INFO message; When the calling terminal transmits a SIP 200 OK message to the video mailbox device through the CSCF, the video mailbox device plays a menu announcement to the calling terminal through the RTP video / audio port set with the calling terminal, According to the information included in the SIP MESSAGE message received in step 4-5, the calling terminal displays the video mailbox menu information on the screen using an xHTML browser and outputs the menu announcements at the same time. Steps 4-6; SIP call processing method for providing a video mailbox service, characterized in that further comprises a. The method according to any one of claims 4 to 8, The fourth step, The video mailbox device transmits a SIP UPDATE message including information for ON / OFF control of a video / audio transmission / reception port to the calling terminal through the CSCF, so that the calling terminal sends the SIP UPDATE message. A fourth step of turning on / off a transmission / reception port of the video / audio according to the information included in the information; Step 4-2, when the calling terminal transmits a SIP 200 OK message to the video mailbox device through the CSCF, the video mailbox device receives an audio / video stream from the calling terminal through the CSCF and records the same in a mailbox. ; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method according to any one of claims 4 to 8, The fourth step, The video mailbox device transmits a SIP UPDATE message including information for ON / OFF control of a video / audio transmission / reception port to the calling terminal through the CSCF, so that the calling terminal sends the SIP UPDATE message. A fourth step of turning on / off a transmission / reception port of the video / audio according to the information included in the information; If the calling terminal transmits a SIP 200 OK message to the video mailbox device through the CSCF, the video mailbox device plays an audio / video stream recorded in the video mailbox to the calling terminal through the CSCF; step; SIP call processing method for providing a video mailbox service, characterized in that comprises a. The method according to any one of claims 4 to 8, After the fourth step, As the execution of the video mailbox service scenario is completed, when the calling terminal transmits a SIP BYE message to the CSCF, the CSCF sends a SIP 200 OK message to the calling terminal and sends a SIP BYE message to the video mailbox device. A fifth step of transmitting; And A sixth step of transmitting, by the video mailbox device, a SIP 200 OK message to the CSCF; SIP call processing method for providing a video mailbox service, characterized in that further comprises a. delete delete delete delete delete delete delete delete delete delete

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