KR20100128444A - Method and apparatus for voip service, mobile terminal - Google Patents

Abstract

PURPOSE: A method and an apparatus for a VOIP service, and a mobile terminal are provided to enable a mobile communication terminal to request wireless data channel connection from a VoIP service device by transmitting to the mobile communication terminal a message which indicates a VoIP call request. CONSTITUTION: A VoIP service device receives a VoIP call request of an originating terminal(S301). When a reception terminal is not connected to a wireless data channel, the service device generates a notification message for the VoIP call request(S303,S305). The service device transfers the notification message to the reception terminal(S307), and receives a wireless data channel access request of the reception terminal(S309). The service device sets up a wireless data channel between the originating terminal and the reception terminal(S311).

Description

및 ｏＩＰ service method and apparatus, mobile communication terminal {METHOD AND APPARATUS FOR VoIP SERVICE, MOBILE TERMINAL}

The present invention relates to a Voice over Internet Protocol (VoIP) service method and apparatus and a mobile communication terminal, and more particularly, to a VoIP service method and apparatus and a mobile communication terminal in a mobile communication system.

The Internet was initially designed considering only simple data transmission, but evolved into a broadband multimedia network capable of transmitting voice or video according to the rapid development of communication technology and users' needs. In addition, Voice over Internet Protocol (VoIP) technology has emerged, in which voice calls are made using the Internet for transmitting data and existing voice communication networks.

The VoIP service digitizes the analog voice signal and compresses the digitized signal, and then uses a signaling protocol such as H.323, Session Initiation Protocol (SIP), Media Gateway Control Protocol (MGCP), etc. It is a telephone service that makes a voice call by transmitting a packet form on the network. VoIP services can use existing IP networks as they are, and unlike multiple public switched switched telephone networks (PSTNs), which require circuits to be connected exclusively over the course of a call, multiple calls share a single network. The advantage is the efficient use of resources.

In addition, VoIP service is an alternative to PSTN because it can reduce the communication cost because it uses the data communication network and voice communication network. Recently, with the spread and activation of broadband Internet, Internet call center, Internet UMS (Unified Messaging System), The service is applied to various fields such as the corporate premises telephone network.

On the other hand, VoIP service is gradually expanding to the mobile communication system area with the development of mobile communication technology. However, unlike a wired terminal connected to a wired internet network, a mobile communication terminal tends to temporarily connect to a wireless data channel, that is, a wireless internet network, due to the characteristics of the mobile communication terminal. That is, the mobile communication terminal can access the wireless data channel and use the VoIP service only when the user of the mobile communication terminal wishes to use the wireless Internet. Therefore, even if the caller sets the mobile communication terminal to the called party and requests a VoIP call, the VoIP service cannot be provided if the mobile communication terminal is not connected to the wireless data channel.

The present invention has been proposed to solve the above problems, and provides a VoIP service method and apparatus for providing a VoIP service when a VoIP call is requested to a mobile communication terminal not connected to a wireless data channel. There is a purpose.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and more clearly by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The present invention for achieving the above object comprises the steps of receiving a VoIP call request sent from the calling terminal; Determining whether a called terminal accesses a wireless data channel in response to the VoIP call request; Generating a notification message for the VoIP call request when the called terminal does not access the wireless data channel as a result of the determination; And it provides a VoIP service method comprising the step of transmitting the notification message to the called terminal.

In addition, the present invention for achieving the above object is a call request receiving unit for receiving a VoIP call request transmitted from the calling terminal; A connection determination unit determining whether a called terminal accesses a wireless data channel in response to the VoIP call request; A notification message generation unit for generating a notification message for the VoIP call request when the called terminal does not access the wireless data channel; And a notification message transmission unit for transmitting the notification message to the called terminal.

In addition, the present invention for achieving the above object is a message receiving unit for receiving a notification message for the VoIP call request of the calling terminal from the VoIP service device; A connection request transmitter for requesting wireless data channel access to the VoIP service device in response to the notification message; And a VoIP communication unit accessing the wireless data channel and receiving data of the calling terminal according to the VoIP call request through the connected wireless data channel.

According to the present invention, when a VoIP call is requested to a mobile communication terminal that is not connected to a wireless data channel, a message indicating that there is a VoIP call request is transmitted to the mobile communication terminal. Accordingly, the mobile communication terminal can request the wireless data channel connection to the VoIP service device in response to the message, and the VoIP service can be provided.

First, the concept of the VoIP service method according to the present invention will be described briefly as follows.

When a VoIP call is requested to a mobile communication terminal not connected to a wireless data channel, the VoIP service method according to the present invention generates a notification message for the VoIP call request and transmits it to the mobile communication terminal. In addition, the VoIP service method according to the present invention sets up a wireless data channel according to a wireless data channel connection request from a mobile communication terminal, thereby providing a VoIP service between a mobile communication terminal and a calling party that do not access a wireless data channel when a VoIP call is requested. To be provided.

In other words, when a VoIP call is requested to a mobile communication terminal not connected to a wireless data channel, the VoIP call cannot be performed because the mobile communication terminal is not connected to the wireless data channel for the VoIP call. However, according to the present invention, the VoIP service can be provided between the calling party and the mobile communication terminal not connected to the wireless data channel by notifying the mobile communication terminal of the VoIP call request so that the mobile communication terminal can request the wireless data channel connection. Can be.

DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, and in describing the present invention, a detailed description of known technologies related to the present invention will unnecessarily obscure the subject matter of the present invention. If it can be determined that the detailed description will be omitted.

1 is a diagram illustrating a VoIP service system according to an embodiment of the present invention.

As shown in FIG. 1, the VoIP service system according to the present invention includes a calling terminal 101, a VoIP service apparatus 103, a message center 105, and a called terminal 107.

The calling terminal 101 requests a VoIP call to the VoIP service device 103 for a VoIP call with the called terminal 107. The called terminal 107 may be a mobile communication terminal supporting a VoIP call, and the called terminal 107 may have a separate number or account set up for the VoIP call. The calling terminal 101 may request the VoIP service device 103 to make a VoIP call with the called terminal 107 using a separate number or an account (VoIP access address).

The VoIP service apparatus 103 determines whether the called terminal 107 has connected to the wireless data channel in response to the VoIP call request of the calling terminal 101. As described above, since a VoIP call is transmitted and received through a data channel, i.e., wireless Internet, unlike a voice call, a VoIP call can be made only when the destination terminal 107 is connected to a wireless data channel. to be.

As a result of the determination, when the destination terminal 107 does not access the wireless data channel, the VoIP service device 103 generates a notification message for the VoIP call request and transmits it to the message center 105. That is, as described above, since the VoIP call can be made only when the terminating terminal 107 is connected to the wireless data channel, the terminating terminal needs to access the wireless data channel through the notification message. 107 may be informed.

The message center 105 transmits the notification message to the called terminal 107. Here, the message center 105 may be a short message service center (SMSC).

The called terminal 107 may check the VoIP call request of the calling terminal 101 through the notification message. The destination terminal 107 may request a wireless data channel connection to the VoIP service device 103 and perform a VoIP call with the calling terminal 101 using the connected wireless data channel.

Meanwhile, a service provider providing a VoIP service method according to the present invention may provide a VoIP service according to the present invention to a subscriber who has previously subscribed to the VoIP service. For example, the VoIP service device 103 uses the subscriber information database in which subscriber information is stored to determine whether the subscriber of the terminating terminal 107 is subscribed to the VoIP service, and performs subscriber authentication and notifies the terminating terminal 107 to the subscriber terminal 107. Can be transmitted.

2 is a diagram illustrating a VoIP service apparatus 103 according to an embodiment of the present invention. In FIG. 2, the case where the called terminal 107 shown in FIG. 1 is a mobile communication terminal is described as an embodiment. 3 to 6, the case where the called terminal 107 is also a mobile communication terminal will be described as an embodiment.

As shown in FIG. 2, the VoIP service apparatus 103 according to the present invention includes a call request receiving unit 201, a connection determining unit 203, a notification message generating unit 205, and a notification message transmitting unit 207. do.

The call request receiving unit 201 receives a VoIP call request transmitted from the calling terminal 101. The VoIP call request may include the number indicating the called terminal 107 or the account information.

The connection determination unit 203 determines whether the terminating terminal 107 is connected to the wireless data channel in response to the VoIP call request. The connection determination unit 203 checks the number or account of the called terminal 107 included in the VoIP call request, and receives the subscriber information from the subscriber information database to determine whether the called terminal 107 is connected to the wireless data channel. can do. That is, the connection determination unit 203 determines whether the destination terminal 107 uses the wireless Internet.

The notification message generator 205 generates a notification message for the VoIP call request when the destination terminal 107 does not access the wireless data channel as a result of the determination by the connection determination unit 203. Meanwhile, according to an embodiment of the present invention, the notification message may be a short message including a callback Uniform Resource Locator (URL) for the VoIP service device 103, that is, a WAP push message. Therefore, the receiving terminal 107 receiving the notification message transmitted from the notification message transmitter 207 to be described later can directly access the wireless data channel using the callback URL.

In addition, the notification message generating unit 205 may generate a notification message further including information on the number of the calling terminal 101, that is, the calling number, and provide the calling party information to the called terminal 107.

The notification message transmitter 207 transmits the notification message to the called terminal 107. The notification message may be sent to the message center 105 shown in FIG. 1 and then to the destination terminal 107 or the notification message transmission unit 207 may include a message center 105 function.

In summary, when the terminating terminal 107 makes a request for a wireless data channel connection in response to a notification message, the VoIP service apparatus 103 according to the present invention responds to the connection request with the originating terminal 101 and the terminating terminal 107. Set up a wireless data channel between them and make a VoIP call. In addition, a mobile communication service provider operating the VoIP service apparatus 103 according to the present invention may obtain a profit of increasing profits by inducing a terminating terminal 107 not connected to a wireless data channel to access the wireless data channel.

3 is a flowchart illustrating a VoIP service method according to an embodiment of the present invention.

As shown in Fig. 3, the VoIP service method according to the present invention starts from step S301.

In step S301, the VoIP service apparatus 103 receives a VoIP call request transmitted from the calling terminal 101. As described above, the VoIP call request may include the number or account information of the destination terminal 107 set separately for the VoIP call.

In step S303, the VoIP service apparatus 105 determines whether the destination terminal 107 is connected to the wireless data channel in response to the VoIP call request. As described above, since the destination terminal 107 is connected to the wireless data channel, VoIP calls can be made.

In step S305, the VoIP service apparatus 105 generates a notification message for the VoIP call request when the destination terminal 107 does not access the wireless data channel as a result of the determination in step S303. As described above, the notification message may be a message including a callback URL for the VoIP service device 103, that is, a callback URL corresponding to the access address of the wireless data channel. As a result of the determination in step S303, when the called terminal 107 is connected to the wireless data channel, the VoIP service device 105 performs the incoming call to the called terminal 107.

In step S307, the VoIP service apparatus 105 transmits a notification message to the called terminal 107.

Accordingly, according to the present invention, the user of the called terminal 107 can know whether or not to request a VoIP call through the notification message, and the called terminal 107 is transmitted from the calling terminal 101 by accessing the wireless data channel according to the user's request. To receive audio or video data. That is, as shown in Fig. 3, in step S309, the VoIP service apparatus 105 receives a radio data channel connection request transmitted from the terminating terminal 107 in response to the notification message. In step S311, the VoIP service apparatus 105 establishes a wireless data channel between the calling terminal 101 and the called terminal 107 in response to the request for accessing the wireless data channel.

Meanwhile, although not shown in FIG. 3, according to the present invention, the method may further include determining whether the called terminal 107 is allowed to receive a VoIP call. That is, according to the present invention, the subscriber of the terminating terminal 107 may set whether or not to accept the VoIP call when subscribing to the VoIP service, and may not receive the notification message.

In more detail, the subscriber information database may store whether or not the subscriber terminal 107 has allowed VoIP call reception, and the VoIP service device 105 permits VoIP call reception of the destination terminal 107 using the database. It can be determined. If the incoming call is not allowed in the VoIP terminal, the notification message may not be generated in step S305 or the notification message may not be transmitted in step S307.

According to the present invention, subscriber authentication for the called terminal 107 using the VoIP access address of the called terminal 107 and the mobile phone number of the called terminal 107 included in the VoIP call request in response to the VoIP call request. The method may further include the step of performing the VoIP service apparatus 105. The VoIP service apparatus 105 may perform subscriber authentication on the called terminal 107 using the subscriber information database as shown in FIG. That is, the VoIP service device 105 queries the existing mobile phone number corresponding to the account or number for the VoIP call of the called terminal 107 using the subscriber information database, and the called terminal 107 contacts the VoIP service. You can check if you are registered.

In Fig. 4, "NO" is a sequence number of subscriber information stored in the subscriber information database. The mobile phone number is the number set in the called terminal 107, and the login ID is the called terminal 107 account for the VoIP service, that is, the VoIP access address. The subscriber attribute indicates whether the called terminal 107 is allowed to receive a VoIP call. If the subscriber attribute is "Active", the notification message is sent to the called terminal 107. If the subscriber attribute is "Deactive", the notification message is not sent to the called terminal 107. The subscriber's rate plan is a VoIP monthly fee, indicating that the called terminal 107 is subscribed to the VoIP service. The VoIP service device 105 may perform the steps S303, S305, and S307 using the mobile phone number corresponding to the destination terminal 107 account for the VoIP service.

5 is a diagram illustrating a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 5, the mobile communication terminal according to the present invention includes a message receiving unit 501, a connection requesting unit 503, and a VoIP communication unit 505, and corresponds to the called terminal 107 shown in FIG. 2. do.

The message receiving unit 501 receives a notification message for the VoIP call request of the calling terminal 101 from the VoIP service device 103.

The connection requester 503 requests a wireless data channel connection to the VoIP service device in response to the notification message received by the message receiver 501. Meanwhile, the notification message may be, for example, a message including a callback URL for the VoIP service device, and the access requester 503 may request channel access using the callback URL. Alternatively, the mobile communication terminal subscriber may check the notification message using the display device and input a channel connection request through the keypad.

The VoIP communication unit 505 accesses a wireless data channel and receives data of the calling terminal 101 according to the VoIP call request through the connected wireless data channel. That is, the VoIP communication unit 505 may receive a voice or video data transmitted from the calling terminal 101 by accessing a wireless internet network, that is, a wireless data channel provided by a mobile communication service provider providing a VoIP service according to the present invention. Can be.

The transmitted audio or video data may be decoded by an application stored in the mobile communication terminal and provided to the mobile communication terminal subscriber through the speaker or display device of the mobile communication terminal. The notification message may include an application identifier to be driven in the mobile communication terminal during the VoIP call with the calling terminal 101.

Meanwhile, according to an embodiment of the present invention, the VoIP communication unit 505 may access a wireless data channel using a wireless LAN device or a WiBro communication device. That is, the VoIP communication unit 505 may include a wireless LAN device or a WiBro communication device, and the subscriber of the mobile communication terminal checks the notification message and does not provide the wireless Internet through the wireless LAN device or the WiBro communication device. Access to the network. In this case, the connection request transmitter 503 does not need to request a wireless data channel connection using the callback URL.

6 is a view for explaining a specific embodiment according to the present invention.

In FIG. 6, a case in which a user of the called terminal 107 is subscribed to a mobile communication service provider providing a VoIP service according to the present invention, and the subscriber of the called terminal 107 allows incoming VoIP calls is described as an embodiment. .

The calling terminal 101 requests a VoIP call for the called terminal 107 to the VoIP service apparatus 103 (S601). The VoIP service apparatus 103 determines whether the terminating terminal 107 is connected to the wireless data channel in response to the VoIP call request (S603). As a result of determination, when the destination terminal 107 does not access the wireless data channel, the VoIP service device 103 generates a notification message for the VoIP call request (S605). The VoIP service apparatus 103 transmits the notification message to the message center 105 (S607), and the message center 105 transmits the notification message to the destination terminal 107 (S609). The notification message may include a callback URL and a calling number for the VoIP service device 103, and the subscriber of the called terminal S609 may check the notification message and request a wireless data channel connection to the VoIP service device 103 ( S611). The VoIP service apparatus 103 may establish a wireless data channel between the calling terminal 101 and the called terminal 107 in response to the channel connection request of the called terminal 107 (S613). The subscriber of the calling terminal 101 and the subscriber of the called terminal 107 may transmit and receive voice or video data through a set wireless data channel and make a VoIP call (S615).

When the called terminal 107 is connected to the wireless data channel when the calling terminal 101 requests the VoIP call, the calling terminal 101 subscriber and the called terminal 107 subscriber transmit and receive audio or video data through the wireless data channel. And make a VoIP call (S615).

Meanwhile, the VoIP service method according to the present invention as described above can be created by a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. And the recording medium includes all types of recording media (intangible medium such as a carrier wave as well as tangible media such as CD and DVD) readable by a computer.

Although the present invention has been described by means of limited embodiments and drawings, the present invention is not limited thereto and is intended to be equivalent to the technical idea and claims of the present invention by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible.

1 is a view showing a VoIP service system according to an embodiment of the present invention;

2 is a diagram showing a VoIP service apparatus 103 according to an embodiment of the present invention;

3 is a flowchart illustrating a VoIP service method according to an embodiment of the present invention;

4 is a diagram illustrating a subscriber information database;

5 is a view showing a mobile communication terminal 107 according to an embodiment of the present invention;

6 is a view for explaining a specific embodiment according to the present invention.

Claims (11)

Receiving a VoIP call request sent from an originating terminal; Determining whether a called terminal accesses a wireless data channel in response to the VoIP call request; Generating a notification message for the VoIP call request when the called terminal does not access the wireless data channel as a result of the determination; And Transmitting the notification message to the called terminal; VoIP service method comprising a. The method of claim 1, Receiving the wireless data channel access request sent from the called terminal in response to the notification message; And Establishing the wireless data channel between the calling terminal and the called terminal in response to the request for accessing the wireless data channel. VoIP service method further comprising. The method according to claim 1 or 2, The notification message A message including a callback URL corresponding to an access address of the wireless data channel; VoIP service method. The method according to claim 1 or 2, Determining whether the called terminal is allowed to receive a VoIP call; More, Generating the notification message is Generating the notification message when the called terminal accepts the VoIP call; VoIP service method. The method according to claim 1 or 2, Performing subscriber authentication on the called terminal using the VoIP access address of the called terminal and the mobile telephone number of the called terminal included in the VoIP call request; VoIP service method further comprising. The method according to claim 1 or 2, The called terminal is Mobile terminal VoIP service method. A call request receiver for receiving a VoIP call request transmitted from an originating terminal; A connection determination unit determining whether a called terminal accesses a wireless data channel in response to the VoIP call request; A notification message generation unit for generating a notification message for the VoIP call request when the called terminal does not access the wireless data channel; And Notification message transmission unit for transmitting the notification message to the called terminal VoIP service device comprising a. The method of claim 7, wherein The notification message A message including a callback URL for the VoIP service device VoIP service device. Message receiving unit for receiving a notification message for the call request of the calling terminal from the VoIP service device; A connection request transmitter for requesting wireless data channel access to the VoIP service device in response to the notification message; And A VoIP communication unit which accesses the wireless data channel and receives data of the calling terminal according to the VoIP call request through the connected wireless data channel Mobile communication terminal comprising a. The method of claim 9, The notification message A message including a callback URL for the VoIP service device; The connection request transmission unit Requesting channel access using the callback URL Mobile terminal. The method according to claim 9 or 10, The VoIP communication unit Accessing the wireless data channel using a wireless LAN device or a WiBro communication device Mobile terminal.

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