KR20090038232A - Video call processing method and system - Google Patents

Abstract

The present invention relates to a video call processing method when a calling terminal supporting a video call originates a video call. When a video call is sent from the calling terminal at an exchange, the terminal determines whether the called terminal is a video call supporting terminal and makes a video call. If it is not a supporting terminal, a video call unavailable message having a specific code value is transmitted to the calling terminal, the video call session with the calling terminal is released, and a specific code value of the video calling unavailable message received from the exchange at the calling terminal. If a video call impossible and voice call retry query message corresponding to the video call impossible and voice call retry query message is input through the video call impossible and voice call retry query message, the voice call is sent to the exchange. The exchange will automatically end the video call session at the time of no call decision. Kimyeon can efficiently use radio resources and exchange resources.

Description

Method and System for processing video call

The present invention relates to a video call processing method and system for connecting a voice call when a video call support terminal attempts a video call to a non-video call terminal.

Recently, mobile communication terminals equipped with a two-way video call function in addition to a simple voice call have been released. This allows video calls between devices that support voice and video using Voice over Internet Protocol (VoIP) as well as voice.

In general, a mobile terminal user attempts to connect a call and manually tries to call again when the network or other reasons do not connect.

For example, when a voice call terminal user attempts to connect a voice call and fails to connect, the voice call terminal user attempts a voice call again.

In addition, if a video terminal user attempts to connect to a video call and is not connected, the video call may be retried.

As a result of attempting a voice call or a video call as described above, it is cumbersome and inconvenient for the user to manually perform the call processing procedure according to the user's will if the connection fails.

In addition, the current mobile communication network has a terminal that supports video calls and a terminal that does not support video calls, if a terminal that supports a video call attempts a video call to a terminal that is not, the user cannot connect to the video call It is inconvenient to re-enter the called party's phone number and attempt a voice call.

Accordingly, an object of the present invention is to provide a video call processing method and system for inducing a caller to switch to a voice call service when a video call supporting terminal attempts a video call to a non-video calling terminal.

Another object of the present invention is to provide a video call processing method and system for enhancing a call success rate by connecting a voice call when a video call supporting terminal attempts a video call to a video call non-supporting terminal.

According to an aspect of the present invention to achieve the above object, in the video call processing method when the originating terminal that supports the video call originating a video call, (a) when the video call is sent from the originating terminal in the exchange, Determining whether the called terminal is a video call supporting terminal and transmitting a video call unavailable message having a specific code value to the calling terminal and releasing the video call session with the calling terminal if the called terminal is not a video calling supporting terminal; The call terminal displays a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the exchange, and voice call through the video call impossible and voice call retry query message. If a retry command is entered, sending a voice call to the exchange; A video call processing method is provided.

In the step (a), when the video call is transmitted from the originating terminal at the exchange, requesting and receiving subscriber information from a home location register, analyzing the received subscriber information, and determining whether to support the video call of the called terminal. In response to the determination result, if the called terminal is not a video call supporting terminal, transmitting a video call unavailable message having a specific code value to the calling terminal and releasing the video call session with the calling terminal. If the called terminal is a video call supporting terminal, call processing is requested from the called exchange.

In the step (b), when the video call unavailable message is received, extracting and displaying a video call impossible and voice call retry query message mapped to a specific code value of the message, and displaying the video call impossible and voice call retry. When the voice call retry command is input through the query message, the voice call is transmitted using the subscriber information used when the video call is originated.

According to another aspect of the present invention, a video call processing method when a calling terminal supporting a video call sends a video call to a called terminal existing in another network, the method comprising: (a) a calling call is sent from the calling terminal at the calling exchange. If the terminal exists in the other network by determining the network of the called terminal, requesting the video call processing to the called exchange; (b) if the video call processing is requested from the calling exchange at the called exchange, the called terminal Determining whether the video call support terminal is a video call support terminal, or transmitting a video call unavailable message to the calling exchange, (c) when a video call unavailable message is received at the calling exchange, sending a video call to the calling terminal. Transmitting a disabling message and releasing a video call session with the originating terminal; and (d) The calling terminal displays a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the calling exchange, and retries the voice call through the video call impossible and voice call retry query message. If a command is input, the video call processing method comprising the step of sending a voice call to the originating exchange is provided.

According to another aspect of the present invention, in a video call processing system, when a video call is sent, it is determined whether the called terminal supports video call, and if the called terminal is not a video call terminal, the video call has a specific code value. A switch which releases a video call session with the calling terminal at the same time as transmitting the unavailable message, and displays a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the exchange; When a voice call retry command is input through a video call disabled and voice call retry query message, a video call processing system including a mobile communication terminal for transmitting a voice call to the exchange is provided.

When the voice call is transmitted from the mobile communication terminal, the exchange sets a voice call path by requesting a corresponding caller to process the call using the subscriber information received from the home location register when the video call is sent.

According to another aspect of the present invention, in a mobile communication terminal having an input unit and a display unit, when a video call is not received from an exchange when a video call is sent, it corresponds to a specific code value of the video call unavailable message. And a video call / audio call switching module for displaying a video call impossible and voice call retry query message to the display unit, and when a voice call retry command is input through the input unit. A mobile communication terminal is provided.

The video call / voice call switching module, when a voice call retry command is input, sends a voice call using subscriber information used when the video call is originated.

As described above, according to the present invention, when the video call support terminal attempts a video call to a non-video call terminal, a video call processing method and system which can improve call success rate by inducing a caller to switch to a voice call service is provided. Can provide.

In addition, it is possible to provide a video call processing method and system that can improve the user satisfaction by preventing inadvertent call connection failure from the user's point of view.

In addition, when the switch automatically terminates the video call session at the time when the video call cannot be determined, it is possible to provide a video call processing method and system that can efficiently use radio resources and switch resources.

Details of the above-described objects and technical configurations of the present invention and the effects thereof according to the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 is a diagram showing the configuration of a video call processing system according to the present invention.

Referring to FIG. 1, the video call processing system includes switchboards 110a and 110b for providing call paths between mobile communication terminals 100a and 100b and a home location register 120 for managing subscriber location information and additional service information. do.

The mobile communication terminals 100a and 100b may be video call support terminals that support video calls or non-video call terminals that do not support video calls.

Hereinafter, for convenience of explanation, the calling terminal 100a will be described as a video call support terminal and the called terminal 100b as a video call unsupported terminal.

The switch 110a or 110b sets up a voice call or a video call path between the mobile communication terminals 100a and 100b.

That is, when the originating terminal 100a makes a video call, the originating exchange 110a determines whether the terminating terminal 100b is a video call supporting terminal by using subscriber information registered in the home location register 120. do. As a result of the determination, if the called terminal 100b is a video call supporting terminal, the originating exchange 100a requests the call exchange 110b for call processing.

If the called terminal 100b is not a video call supporting terminal, the calling exchange 110a unconditionally releases the video call session established with the calling terminal 100a and cannot make a video call with a specific code value. A message is generated and transmitted to the calling terminal 100a.

 Receiving the video call unavailable message, the calling terminal 100a outputs a video call impossible and voice call retry message assigned to the code value.

That is, a message matching a specific code value is stored in the originating terminal 100a. When the originating terminal 100a receives a message including a code value from the originating exchange 110a, the originating terminal 100a matches the code value. Extract and print the message.

2 is a block diagram schematically showing the configuration of a mobile communication terminal capable of switching a voice call of a video call according to the present invention.

2, a mobile communication terminal capable of switching a voice call of a video call includes a wireless transceiver 200 for transmitting and receiving a wireless signal with a base station, an input unit 210 for receiving a user command, and a storage unit for storing various data ( 220, a display unit 230 for receiving and displaying key data and various information signals generated by the input unit 210, an audio unit 240 for outputting a voice signal, and a photographing unit for capturing an image of a user's face during a video call ( 250, a video call processing module 260 for a video call, and a video call / audio call switching module 270 for converting a video call into a voice call.

The video call processing module 1280 sets up a video call path with a video call counterpart terminal and transmits and receives video call traffic including voice and video.

The video call / voice call switching module 270, when a video call unavailable message is received from the exchange, displays the video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message. Display on.

Then, the video call / voice call switching module 270 sends a voice call to the exchange when a voice call retry command is selected through the video call disabled and voice call retry query message. Here, the video call / voice call conversion module 270 sends a voice call using subscriber information used when the video call is made.

3 is a flowchart illustrating a video call processing method according to a video call origination by a video call support terminal according to the present invention, and FIG. 4 is an exemplary diagram of a video call disablement and voice call attempt query message according to the present invention.

Hereinafter, the calling terminal will be described as a video call supporting terminal.

Referring to FIG. 3, when the calling terminal transmits a video call (S200), the exchange requests subscriber information (location information and additional service information) of the called terminal to the home location register (S202).

The home location register transmits subscriber information including the incoming routing information and video call support information of the called terminal in the subscriber information database to the exchange (S204).

That is, in the subscriber information database of the home location register, basic information, additional information, and the like for each terminal are registered. When subscriber information is requested from the exchange, subscriber information of the corresponding terminal is extracted and transmitted to the exchange.

The subscriber information includes information on whether the called terminal supports video call.

The exchange determines whether the called terminal is a video call support terminal by analyzing the subscriber information transmitted from the home location register (S206). That is, the exchange determines whether the called terminal is a video call capable terminal using the video call support information in the subscriber information.

If it is determined in step 206 that the called terminal is not a video call supporting terminal, the exchange transmits a video call impossible message to the calling terminal (S208), and releases a video call session established with the calling terminal (S210).

Here, the video call unavailable message is composed of a specific code value, and the specific code value indicates a video call disabled and voice call retry query message.

When the video call impossible message is received from the exchange, the originating terminal outputs a video call impossible and voice call retry query message assigned to the code value included in the message (S212).

That is, the calling terminal extracts a code value by analyzing the video call unavailable message, extracts a message corresponding to the extracted code value, and displays the message as shown in FIG. 4.

4, the video call is not possible on the calling terminal screen. Do you want to retry the voice call? 'Is displayed.

When the calling terminal user sees the displayed video call unavailable and voice call attempt query message and selects a voice call retry, the user selects a 'yes' button and selects a 'no' button when a voice call retry is not desired. .

When the voice call retry command is input by the user (S214), the calling terminal transmits a voice call to the exchange (S216). That is, when the voice call retry command is input, the calling terminal immediately sends a voice call including the called terminal identification number without re-entering the called terminal identification number.

Then, the exchange requests call processing to the destination exchange by using the subscriber information received from the home location register in step 204 to establish a voice call path with the corresponding destination terminal (S218).

That is, when the voice call is sent from the originating terminal, the exchange does not request subscriber information from the home location register, but establishes a voice call path with the called terminal using the subscriber information received through step 204.

Since the voice call call method between the calling terminal and the called terminal is a general method, a detailed description thereof will be omitted.

If it is determined in step 206 that the called terminal is a video call supporting terminal, the exchange allows a video call path to be established with the called terminal (S220). That is, if the called terminal is a video call supporting terminal, the exchange requests a call processing to the called exchange using the corresponding routing information.

The terminating exchange then pages the terminating terminal so that a video call path with the originating terminal is established.

5 is a flowchart illustrating a video call processing method when a video call support terminal sends a video call to a terminal in another network according to the present invention.

Hereinafter, the calling terminal will be described as a video call supporting terminal.

Referring to FIG. 5, when an originating terminal transmits a video call to a terminal existing in another network (S500), the originating exchange requests a video call processing to a destination exchange of another network (S502).

That is, when the video call is sent from the originating terminal, the originating exchange checks the identification information of the called terminal to determine whether the terminal exists in the other network. As a result of the determination, if the called terminal is a terminal existing in the other network, the originating exchange requests a video call processing to the called exchange of the network where the called terminal exists.

Then, the destination exchange requests subscriber information (location information and additional service information) of the called terminal to a home location register (S504).

The home location register transmits subscriber information including destination routing information and video call support information of the corresponding destination terminal in the subscriber information database (S506).

That is, in the subscriber information database of the home location register, basic information and additional information about each terminal are registered. When subscriber information is requested from the destination exchange, subscriber information of the corresponding terminal is extracted to the destination exchange. send.

The subscriber information includes information on whether the called terminal supports video call.

The called exchanger analyzes the subscriber information transmitted from the home location register to determine whether the called terminal is a video call support terminal (S508). That is, the called exchanger determines whether the called terminal is a video call capable terminal using the video call support information in the subscriber information.

If it is determined in step 508 that the called terminal is not a video call supporting terminal, the called exchange transmits a video call impossible message to the calling exchange (S510).

Then, the originating exchange transmits a video call impossible message to the originating terminal (S512), and releases the video call session established with the originating terminal (S514).

Here, the video call unavailable message is composed of a specific code value, and the specific code value indicates a video call disabled and voice call retry query message.

When the originating terminal receives a video call unavailable message from the originating exchange, the originating terminal outputs a video call impossible and voice call retry query message assigned to the code value included in the message (S516).

When the voice call retry command is input by the user (S518), the originating terminal sends a voice call to the originating exchange (S520), and the originating exchange requests the call exchange to process the voice call (S522). That is, when the voice call retry command is input, the calling terminal immediately sends a voice call including the called terminal identification number without re-entering the called terminal identification number.

Then, the destination exchange uses the subscriber information received from the home location register in step 506 to page the corresponding destination terminal so that the voice call path is established (S524).

That is, when a voice call processing is requested from the originating exchange, the destination exchange does not request subscriber information from the home location register, but establishes a voice call path with the destination terminal using the subscriber information received through step 506. Be sure to

Since the voice call call method between the calling terminal and the called terminal is a general method, a detailed description thereof will be omitted.

If it is determined in step 508 that the called terminal is a video call support terminal, the called exchange pager sets the video call path by paging the called terminal (S526). In other words, if the called terminal is a video call supporting terminal, the called exchange uses the corresponding routing information to page the called terminal to establish a video call path with the calling terminal.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive. 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.

As described above, the video call processing method and system according to the present invention can be used in a video call service technology that not only improves a call success rate but also efficiently uses radio resources and exchange resources.

1 is a diagram showing the configuration of a video call processing system according to the present invention.

2 is a block diagram schematically illustrating a configuration of a mobile communication terminal capable of switching a voice call of a video call according to the present invention.

3 is a flowchart illustrating a video call processing method according to video call origination of a video call support terminal according to the present invention;

Figure 4 is an illustration of a video call impossible and voice call attempt query message according to the present invention.

5 is a flowchart illustrating a video call processing method when a video call supporting terminal according to the present invention sends a video call to a terminal in another network.

<Explanation of symbols for the main parts of the drawings>

100: mobile communication terminal 110: switchboard

120: Home Location Register

Claims (10)

In the video call processing method when the calling terminal that supports the video call originated a video call, (a) When a video call is sent from the calling terminal at the exchange, it is determined whether the called terminal is a video call supporting terminal, and if it is not a video call supporting terminal, a video call unavailable message having a specific code value is transmitted to the calling terminal. Releasing the video call session with the originating terminal; (b) the calling terminal displays a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the exchange, and through the video call impossible and voice call retry query message; If a voice call retry command is input, sending a voice call to the exchange Video call processing method comprising a. The method of claim 1, In step (a), Requesting and receiving subscriber information from a home location register when a video call is sent from the originating terminal at the exchange; Analyzing the received subscriber information to determine whether the corresponding terminal supports a video call; and And if the called terminal is an unsupported video call terminal, transmitting a video call unavailable message having a specific code value to the calling terminal and releasing the video call session with the calling terminal. Treatment method. The method of claim 2, And if the called terminal is a video call supporting terminal, setting the video call path by paging the called terminal. The method of claim 1, In step (b), If the video call unavailable message is received, extracting and displaying a video call impossible and voice call retry query message mapped to a specific code value of the message; And when a voice call retry command is input through the video call disabled and voice call retry query message, transmitting a voice call using subscriber information used when the video call is originated. . In the video call processing method when a calling terminal that supports a video call sends a video call to a destination terminal in the other network, (a) when a video call is transmitted from the originating terminal at the originating exchange, determining a network of the called terminal and requesting a video call processing from the called exchange if the terminal exists in another network; (b) if the called exchange is requested by the calling exchange from the calling exchange, determining whether the called terminal is a video call supporting terminal, and if it is not a video call supporting terminal, transmitting a video call unavailable message to the calling exchange; (c) if a video call unavailable message is received at the originating exchange, transmitting a video call unavailable message to the calling terminal, and releasing the video call session with the calling terminal; and (d) The calling terminal displays a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the calling exchange, and displays the video call impossible and voice call retry query message. If a voice call retry command is input, sending a voice call to the originating exchange. Video call processing method comprising a. The method of claim 5, In step (b), Requesting and receiving subscriber information from a home location register when video call processing is requested from the originating exchange; Analyzing the received subscriber information to determine whether to support the video call of the called terminal; And if the called terminal is an unsupported video call terminal, transmitting a video call unavailable message having a specific code value to the calling exchange. In a video call processing system, When a video call is sent, it is determined whether the called terminal supports video call, and if the called terminal is not a video call terminal, it transmits a video call impossible message with a specific code value and releases the video call session with the calling terminal. Exchanger; A video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message received from the exchange is displayed, and a voice call retry command is input through the video call impossible and voice call retry query message. When the voice call to the exchange, the mobile communication terminal Video call processing system comprising a. The method of claim 7, wherein When the voice call is transmitted from the mobile communication terminal, the exchange requests a call processing to the corresponding destination terminal using the subscriber information received from the home location register when the video call originates, and sets the voice call path. system. In the mobile communication terminal provided with an input unit and a display unit, If a video call unavailable message is received from an exchange when a video call is sent, a video call impossible and voice call retry query message corresponding to a specific code value of the video call unavailable message is displayed on the display unit, and the input unit is displayed. When a voice call retry command is input, a video call / audio call switching module for sending a voice call to a corresponding called terminal. Mobile communication terminal comprising a. The method of claim 9, The video call / voice call switching module, when a voice call retry command is input, uses a subscriber information used to transmit the video call to transmit a voice call.

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