KR100563964B1 - PDA for providing of multitude internet telephony and method thereof - Google Patents

Abstract

The present invention relates to a PDA terminal, and in particular, to provide a service system and a service method for providing a multi-party conference service regardless of location and cost using a PDA terminal owned by each customer.

To this end, the present invention comprises the steps of checking the occurrence of the VoIP service request; Performing access to an internet network using a WLAN module; Requesting a choice as to whether to conduct a person-to-person call or a conference call through a VoIP application program; A fourth step of receiving identification information of each participant terminal to attend the conference call when the request for the conference call occurs; A fifth step of notifying the input terminal of each participant of the input that a request for a multi-party call is made so that the multi-party call can be made; A sixth step of converting corresponding voice data into digital packet data when the multi-party call is performed and voice is input; In addition, a method comprising: providing identification information on each participant terminal currently attending the conference in the converted digital packet data and providing the same to the VoIP network; To present.

PDA terminal, conference call, VoIP service

Description

PDA (PDA) terminal and method for providing multi-party call service using same {PDA for providing of multitude internet telephony and method example}

1 is a schematic diagram showing a service provision state for a PDA terminal of the present invention and a multi-party call service using the same.

2 is a flowchart schematically showing a service providing process according to a first embodiment of the present invention;

3 is a state diagram showing a displayed screen of the PDA terminal for explaining the second embodiment of the present invention;

4 is a flowchart schematically showing a service providing process according to a second embodiment of the present invention.

5 is a flowchart schematically showing a service providing process according to a third embodiment of the present invention.

Explanation of symbols for main parts of the drawings

100. PDA terminal 110. Wireless LAN module

120. VoIP application program 200. Participant terminal

The present invention relates to a service using a PDA terminal, and more particularly, to a service system and a service method for providing a service such as a multi-party conference using a PDA of each customer.

In general, a PDA (Personal Digital Assistant) terminal is a small device having a calculation, information storage and retrieval function for personal or business use.

The PDA terminal has been pointed out problems such as limited memory capacity, inconvenient data input, small display, etc., but research on its use due to the advantages of being portable and wireless internet and convenient to carry. Is actively being done.

Recently, the PDA terminal deviates from the function of managing personal information only and serves as a mobile communication terminal using a public switched telephone network (PSTN) and also provides a function of a mobile network computer. As a result, the demand is gradually increasing.

However, the PDA terminal has a lot of difficulties in attracting customers due to the absence of various applications despite the above-described advantages.

In particular, when providing a call service using the PDA terminal, since a general PSTN network is used, when a user wants to make a call with a plurality of parties, one communication line must be established for each of the parties, resulting in an excessive cost burden. Has

In addition, although the PDA terminal can simultaneously perform the functions and call functions of the above-described mobile network computer, it is not possible to provide a service according to simultaneous meeting with each other on the remote site.

Of course, in recent years, by providing an Internet phone, for example, Voice over Internet Protocol (VoIP) service on the web, each customer can make a conference call with a partner at a low cost through a personal PC. A service is being presented.

In this case, the VoIP service is an Internet telephony technology that enables voice calls by converting voice data into Internet protocol data packets on a computer network. A plurality of customers can simultaneously communicate using a single data network. This has the advantage of reducing costs.

However, since the service for the multi-party conference on the web uses a wired network, it is inconvenient to be provided only in a place where each PC is installed.

In particular, the inconvenience is that if the specific customer to attend the meeting is moving to other places due to other tasks, the meeting is not possible.

In addition, the conventional method of conducting a conference is to conduct a meeting with other customers on a remote site using only a small number of Internet-capable PCs smaller than the number of customers, with a large number of customers gathered in a single conference room located at each remote location. There is a problem in that it is difficult to proceed smoothly because individual customers have little chance to express their opinions.

The present invention has been made in order to solve the above problems, a service system and a service method for providing a service for low cost and multi-party meetings regardless of the place using a PDA terminal each customer has The purpose is to provide.

According to an aspect of the present invention for achieving the above object and provides a wireless local area network (WLAN) module for wireless Internet access, and Voice over Internet Protocol (VoIP) services in a wireless mobile environment In order to perform a conference call between a plurality of customers, the program is implemented to convert voice data into digital packet data including information on each conference call party, and the attendees are connected through a VoIP network to which the terminal of the participant customer is connected. A VoIP application program programmed to be provided to a customer's terminal; The present invention provides a personal digital assistant (PDA) terminal including a display unit on which a screen activated by driving of the VoIP application is displayed.

In addition, a first step of confirming the occurrence of a request for providing a VoIP service in the operating method of the present invention using the service system described above; A second step of performing access to an internet network using a wireless LAN module when the VoIP service request is made; A third step of executing a VoIP application program and displaying a selection screen on whether to conduct a person-to-person call or a conference call; A fourth step of receiving identification information of each participant terminal to be attended to the conference when the selection of the request is confirmed as a request for the conference; A fifth step of notifying the input terminal of each participant of the input that a request for a multi-party call is made so that the multi-party call can be made; A sixth step of converting corresponding voice data into digital packet data when the multi-party call is performed and voice is input; In addition, the method includes a seventh step: including identification information on each participant terminal currently attending the conference in the converted digital packet data and providing the same to the VoIP network.

Hereinafter, an embodiment according to the PDA terminal of the present invention and the method for providing a multi-party call service using the PDA terminal will be described in more detail with reference to FIGS. 1 to 5.

First, Figure 1 is a schematic diagram showing an embodiment of a PDA terminal according to the present invention.

That is, the PDA terminal 100 according to the embodiment of the present invention includes a WLAN module 110, a VoIP over Internet Protocol application program 120, and a display 130. .

Here, the WLAN module 110 is a device for allowing the PDA terminal 100 to access the wireless Internet within an AP (Access Point) area. The WLAN module 110 enables the Internet access in a mobile communication environment including a wireless LAN. A mobile communication module is included.

The VoIP application program 120 is not illustrated as a program implemented to provide the VoIP service in a wireless mobile environment, but is installed in a memory area or an information storage area of the PDA terminal 100.

The VoIP service is an Internet telephony technology that converts voice data into Internet protocol data packets on a computer network to enable voice calls. The VoIP application program 120 performs the VoIP service on the PDA terminal. It is an application programmed to be.

That is, the VoIP application program 120 transmits and receives a voice data packet through a data packet network to which terminals (IP phones, PDA terminals, wireless telephones, wired telephones, etc.) 210, 220, 230, and 240 to communicate with each other using a VoIP service are connected. This is a program implemented to make this possible.

In particular, the VoIP application program 120 converts voice data into digital packet data including information on each conference call participant to perform a conference call between a plurality of customers, and is connected to each participant terminal (210, 220, 230, 240). It is programmed to provide each participant terminal (210,220,230,240) via a VoIP network.

In addition, the VoIP application program 120 may be implemented such that the execution can be performed only by selecting an activated shortcut icon on the screen of the display unit 130 of the PDA terminal 100. It can also be implemented so that its execution can be done only by input.

In addition, the VoIP application program 120 is implemented so that a VoIP service is provided in a state where a separate process for personal authentication is omitted, which is to be considered that the PDA terminal 100 is always possessed by a political party user.

In addition, the display 130 displays a screen activated by driving the VoIP application, and receives various selections of a corresponding customer through the displayed screen.

Hereinafter, a first embodiment of a multi-party call service providing process using the PDA terminal 100 of the present invention having the above-described configuration will be described in more detail.

First, the present invention provides a VoIP application program of a host PDA terminal 100 for a specific customer (hereinafter referred to as "organizer") to receive a multi-party call service (for example, to perform a conference call located at a remote location). If 120 is executed, the VoIP application program 120 checks whether the host terminal PDA 100 is located in a wireless LAN area, that is, an AP area (or a mobile internet connection area such as mobile communication). (S110).

At this time, if the PDA terminal 100 of the organizer is not located in the wireless LAN area, the information on the failure of the wireless Internet connection is displayed on the display 130 of the organizer PDA terminal 100 and notified to the corresponding customer (S120). )do.

If the organizer's PDA terminal 100 is located in a wireless LAN area (or a mobile internet connection area such as mobile communication), the VoIP application program 120 is provided in the PDA terminal 100 of the organizer. Control the wireless LAN module 110 to achieve a state in which the PDA terminal 100 is connected to the Internet.

In addition, the VoIP application program 120 selects whether to conduct a person-to-person call or a conference call (or a conference call) through the display unit 130 of the organizer PDA terminal 100. Display the screen.

In addition, the VoIP application program 120 is a terminal for each meeting attendee who wants to participate in the conference call when the service selected from the organizer is confirmed as a service request for the conference call (hereinafter, referred to as “attendee”). Receive identification information about (S130).

In this case, each participant terminal may be a PDA terminal 210, an IP phone 220, a mobile communication terminal 230 and a general wired and wireless telephone 240, identification information for each participant terminal (210, 220, 230, 240) Means information of at least one of a subscriber ID of the participant's VoIP service, an IP of the participant terminal (210, 220, 230, 240), or a phone number of the participant terminal (210, 220, 230, 240).

Of course, each participant terminal (210, 220, 230, 240) is also required to be connected to the VoIP network through the Internet network or PSTN network to receive the VoIP service.

At this time, a gatekeeper, a VoIP gateway, or an IP-PBX is installed in the VoIP network. Since such a configuration is widely known, a detailed introduction thereof is omitted.

In addition, the VoIP application program 120 notifies the occurrence of the request for the conference call to each participant terminal (210,220,230,240) based on the identification information of each participant terminal (210,220,230,240) received (S140) a multi-party call is possible To achieve.
In this case, it is possible for each participant terminal (210,220,230,240) to make a multi-party call possible by performing a response action such as clicking a call key, for example, by clicking a call key. PDA terminal 100 and each participant terminal (210,220,230,240) is connected to the VoIP network through the Internet network or PSTN network, and then through the gatekeeper or VoIP gateway or IP-PBX, etc. By operating the PDA terminal 100 in a session-connected state, a multi-party call can be achieved. The session connection of each participant terminal (210, 220, 230, 240) to the organizer PDA terminal 100 is performed by the same method as, for example, the process of connecting a plurality of users to the same session in a typical messenger service.

The method of notifying the occurrence of a request for a multi-party conference call to each participant terminal 210, 220, 230, or 240 may be performed through a text message or a voice information message, or by performing a call with the corresponding participant terminal 210, 220, 230, or 240. It can also be done by.

In addition, in order to enable a multi-party conference call between the organizer PDA terminal 100 of the conference call service and each conference participant terminal located at a remote location, each participant terminal is also connected to an environment for providing a VoIP service. To lose.

In particular, when the request for the conference call service as described above, by providing identification information of all the participants terminal (210,220,230,240) attending the conference call service to all the participants terminal (210,220,230,240) through a session connected to the Internet network It is desirable to allow each other to know who the subjects attended the conference call.

At this time, the identification information of the attendees of the conference call provided as described above may be set to be displayed on the screen of the display unit for each category such as name or nickname in addition to ID, IP address, and telephone number.

In addition, if a voice input is made through the PDA terminal 100 of the organizer or the terminals 210, 220, 230, and 240 of each participant in an environment in which a conference call service is established according to the above process, the VoIP application program 120 is performed. Converts the input voice data into digital packet data (S150).

Thereafter, the converted digital packet data includes identification information of each participant terminal (210,220,230,240) currently attending the conference call (S160), and then provides it to the VoIP network (S170) to the respective participant terminal (210,220,230,240). To be transmitted.
In this case, each participant terminal (210,220,230,240) receives the converted packet data through a session connected to the Internet network and then converts the received packet data into a compressed digital voice signal and the digital voice signal is again By converting into an analog voice signal, mutual calls are possible.

At this time, the identification information for each participant terminal (210,220,230,240) is the same concept as the identification information for each of the attendee terminal (210,220,230,240) described above, for example, so that the corresponding data packet can be correctly transmitted through the VoIP network IP address of the attendee terminal (210,220,230,240).

Meanwhile, in the second embodiment of the present invention, as shown in FIG. 4, any one participant who is currently attending a conference call while the multi-party call service providing the PDA terminal 100 of the first embodiment is in progress is shown in FIG. Provide an additional process of making the voice heard only by one particular participant, or by a plurality of specific participants, but not all attendees.

In this case, in order to provide the above service, a service request button for receiving a request of a corresponding function (for example, a whisper function) on the display unit 130 of the PDA terminal 100 as shown in FIG. 131 and a check mark 132 for selecting an object are provided in an activated state.

Here, the check mark field 132 is activated on one side of the classification information, such as the name, ID, IP address, telephone number, etc. of each multi-party call participants currently present on the screen of the display unit 130.

Therefore, if the service request button is selected, the VoIP application program 120 confirms identification information of each target terminal checked in the check box 132 (S210), and subsequently, the PDA terminal requesting the service. In the process of converting the inputted voice data into digital packet data by performing a voice input from the step S100, only the identification information of the checked specific participant terminal is included in the converted digital packet data (S230).

If the digital packet data is transmitted to the VoIP network (S240), the digital packet data is transmitted only to the identified address of the checked terminal, not to the attendees of all multi-party call services, thereby providing a whisper function. .

Of course, in contrast to the above-described process, the voice transmitted from a specific participant terminal (210,220,230,240) may be serviced to be provided only to his PDA terminal (100), which is a packet transmitted from the corresponding participant terminal (210,220,230,240) to the VoIP network. The application program providing the VoIP service to the participant terminals 210, 220, 230, and 240 may be requested so that data includes only identification information of the PDA terminal 100.

In this case, it is obvious that the permission of the corresponding service should be made from the owner of the attendee terminal 210, 220, 230, or 240.

In addition, although the service provision of the whisper function as described above may be set to be provided to all the attendee terminals currently attending the call, a multi-party call may be established for the first time because a problem may occur due to indiscriminate use of the corresponding function. Only the PDA terminal 100 of one organizer may be set such that the whisper function is selected.

At this time, as a method for ensuring that only the PDA terminal 100 of the organizer can be provided with the whisper service, the check box described above is provided only in the PDA terminal 100 of the organizer among the terminals participating in the conference call. The VoIP application program 120 may be controlled to be activated.

That is, when the VoIP application program 120 is first performed for the corresponding conference call, the owner of the PDA terminal 100 checks whether the owner of the PDA terminal 100 establishes the conference call. If it is confirmed that the conference has been established, the check box 132 is activated to enable check selection, and if it is confirmed that the owner of the PDA terminal 100 has not established the conference, the check box 132 is activated. ) Disables the check selection.

Meanwhile, the third embodiment of the present invention is in addition to each participant who is currently performing a multi-party call through the VoIP service while providing the multi-party call service using the PDA terminal 100 of the above-described first embodiment as shown in FIG. Provide an additional process for servicing other specific parties (invitees) to attend the current conversation.

To this end, the VoIP application program of each PDA terminal 100 activates the service request button 133 for invitation on the screen of the PDA terminal 100, and when the selection of the service request button is made, the other party to which the call is to be connected. In response to receiving identification information on the terminal 300 (S310), the terminal 300 may be controlled to be notified of the occurrence of an invitation to the conference call currently being performed by the corresponding terminal 300 (S320).

In this case, the terminal 300 of the invitee is provided with at least one identification information among names, nicknames, IDs, telephone numbers, and IP addresses of the terminals 100, 210, 220, 230, and 240 of all conference call participants who are currently conducting the conference call.

In addition, if the call attendees attend the call by the above-described series of processes, each of the attendee terminals 100, 210, 220, 230, and 240 participating in the existing conference call provides identification information on the newly attended terminal 300 (S330). Thereby providing a smooth conference call.

As described above, the PDA terminal and the multi-party call service method using the PDA terminal according to the present invention have various effects described below.

First, the service of the present invention has the effect that the device connection can be simplified compared to the existing multi-party communication using the wire in the multi-party communication.

Second, since the service of the present invention is provided with the VoIP service using a PDA terminal, the mobility can be guaranteed compared to the VoIP service using a conventional PC.

Third, since the service of the present invention is provided with a multi-party call service through a VoIP service using a PDA terminal, the service of the present invention can be reduced in cost compared to a multi-party call service using a general PSTN wired communication network.

Claims (9)

delete A first step of confirming whether the VoIP application program is executed; A second step of confirming whether or not a wireless internet connection of the corresponding PDA terminal is possible when the VoIP application program is executed; A third step of displaying, on the display unit, a selection screen on whether to make a personal-to-person call or a multi-party call in a state where the wireless Internet connection is established when the wireless Internet access is possible; A fourth step of receiving identification information of each participant terminal to be attended to the conference when the selection of the request is confirmed as a request for the conference; A fifth step of notifying the input terminal of each participant of the input that a request for a multi-party call is made so that the multi-party call can be made; A sixth step of converting corresponding voice data into digital packet data when the multi-party call is performed and voice is input; And, And a seventh step of including the identification information of each participant terminal currently participating in the conference in the converted digital packet data and providing the same to the VoIP network. The method of claim 2, The identification information of each participant terminal At least one of a participant's name, ID or nickname, the IP of the participant terminal, and the telephone number of the participant terminal. The method of claim 2, If you want to send the packet data only to a specific participant terminal during the sequential execution of each step Receiving identification information on the transmission target participant terminal; Converting voice data input from a terminal requesting to transmit packet data only to the specific participant terminal into digital packet data; And, And including only the information on the selected specific participant terminal in the converted digital packet data and providing the same to the VoIP network. 2. The method of claim 4, wherein Services that send packet data only to specific participant terminals Method for providing a multi-party call service using a PDA terminal, characterized in that it is set to be selectable only from the first PDA terminal to establish a multi-party call. The method of claim 4, wherein Services that send packet data only to specific participant terminals A method for providing a conference call service using a PDA terminal, characterized in that the selection is made possible in all PDA terminals attending the conference call. The method of claim 2, If you want to join the current conversation with another party other than each party currently making the conference call through the VoIP service. Receiving identification information on the terminal of the invitee to which the call is to be connected; And notifying the occurrence of the invitation to the inputted multi-party call path to the terminal of the invited invitee. 2. The method of claim 7, wherein In the process of notifying the occurrence of the invitation to the multi-party call, providing the multi-party call service using the PDA terminal, characterized in that providing the identification information for all the attendee terminal currently conducting the multi-party call to the terminal of the invited target party. Way. The method of claim 7, wherein If the invitee is attending a conference call, the method further comprises providing identification information of the newly invited inviteee terminal to all attendee terminals participating in the existing conference call. How to provide call service.

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