KR20010060627A - Web server apparatus for providing conference call - Google Patents

Abstract

PURPOSE: A web server device supporting a multi-speech is provided to enable Internet users to attempt a telephony on a web page, without using a telephone set, if the users desires to perform telephone speech for searched telephone numbers. CONSTITUTION: A web interface module(10) manages a web page and performs a PSTN(Public Switched Telephone Network) telephone speech. A user interaction processing module(20) generates a user interaction module(22) for interaction with each user, if browsing is performed to a web server through the web interface module(10). A PSTN/Internet interworking processing module(30) converts the PSTN telephony request by the user through the user interaction module(22) to a standardized SIP(Single Inline Package) protocol for transmission to the PSTN, and converts a result processed in the PSTN to a type capable of being recognized by users.

Description

Web server apparatus for supporting multiple calls

The present invention relates to a web server device that supports multiple calls. More particularly, when an Internet user searches a phone number through the web, he or she does not use a telephone when he or she wants to make a phone call at the time of a search or after a certain time. The present invention relates to a web server device that supports multiple calls, which enables to make a PSTN call directly through a web page.

Existing web server is limited to the Internet network, so telephone connection through the web has been provided using the Voice Over Internet Protocol (VoIP) function. However, the VoIP connection is a voice transmission using the Internet protocol, which is poor in quality compared to the PSTN telephone connection, and the telephone connection service can be provided only when a specific application is attached to the web user's PC. There is this. The web server proposed by the present invention may provide a PSTN telephone connection by providing a connection function between the Internet and the PSTN by transferring a telephone connection request from the web to the PSTN.

However, since most web servers perform user processing using a process using CGI, it is difficult to adequately cope with a number of telephone connection requests, resulting in a decrease in efficiency due to a switching connection.

Accordingly, the present invention has been made to solve the above problems, and when the Internet users who are searching the web want to make a phone call immediately or after a predetermined time, the telephone number is directly dialed without using a telephone. It is an object of the present invention to provide a web server device that supports multiple currencies to try.

In order to achieve the above object, the present invention provides a web interface module for managing a web page and performing PSTN dialing; A user interaction module 20 for generating a user interaction thread for interacting with each user when browsing to a web server through the web interface module 10; And SIP converting the PSTN dialing request requested by the user through the user interaction module 20 to the standardized SIP protocol and transmitting the PSTN to the PSTN, and converting the result processed by the PSTN into a format that the web user can know. It characterized in that it comprises a protocol module (30).

1 is an example of using a web server device supporting multiple currencies to which the present invention is applied.

2 is a message delivery path between components when a web user attempts a PSTN call according to the present invention.

3 is a block diagram of a web server device supporting multiple currencies to which the present invention is applied.

4 is a method for implementing a user interaction processing module according to the present invention.

5 is a primitive structure for dialing requests from a user thread to a protocol communication thread in accordance with the present invention.

6 is a SIP protocol module implementation method according to the present invention.

7 is a dynamic automatic connection / release function of a SIP protocol module with a PSTN gateway.

<Description of Symbols for Main Parts of Drawings>

10: web interface module 20: user interaction processing module

21: protocol interface module 22: user interaction module

30: PSTN / Internet interworking module 31: Web server interface module

32: SIP protocol module 33: PSTN interface module

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

1 is a view showing a use structure of a web server device according to the present invention. When web users connected to the Internet 100 access the web server 200, the PSTN dialing function provided by the web server 200 may be used. To this end, the web server 200 must provide a web user interface and perform a function of accessing the PSTN 300 to make a PSTN call.

In the present invention, the SIP protocol used as a standard protocol for interworking with the PSTN 300 and the Internet 100 is used. In such a structure, the web server 200 provides a web user with a PSTN call origination service and a call reservation service function for a specific person or a plurality of recipients.

2 illustrates a message delivery path between components when a web user attempts to connect to a PSTN telephone. When a web user clicks the telephone reservation / outgoing service, the web server receives an outgoing telephone number, a reservation connection / immediate connection selection from the web user, and a reservation time in case of reservation. The web server performs an operation of verifying the accuracy of the data on the input data and transmits a message to the PSTN. If the message is successfully sent and the connection attempt is successfully made from the PSTN, the call is immediately ringed on the caller's (web user) phone and the caller's phone rings when the caller picks up the receiver. In the case of a scheduled connection, the phone call is made at the specified time.

3 is a web server device that supports multiple calls from the web, and includes a web interface module 10, a user interaction processing module 20, and a PSTN / Internet interworking processing module 30.

The web interface module 10 is a content provided by the web server to the web user. The web user is connected to the web server through the web interface module 10.

The user interaction processing module 20 is an interface for interworking with the user interface module 10 and the PSTN / Internet interworking processing module 30. When a web user accesses a web server and browses the web, a user interaction module 21 for interacting with each user is generated to perform a function until the web user finishes using the web and closes the web browser. The user interaction module 21 interacts with the PSTN / Internet interworking module 30 through the protocol interface module 22.

The PSTN / Internet interworking processing module 30 receives the PSTN dialing requested by the user through the user interaction processing module 20 through the web server interface module 31 and is standardized through the SIP protocol module 32. The PSTN interface module 33 converts the data into the PSTN through the PSTN interface module 33, converts the result processed by the PSTN into a data format known to the web user, and informs the user interaction processing module 20.

FIG. 4 illustrates the contents of the user interaction processing module 20 implemented in a thread. Since a web server can be accessed by a large number of users, it needs a function that can efficiently handle it. In the present invention, when a large number of users are connected, a thread method is used to efficiently handle user requirements while minimizing system load. Since the user's PSTN connection request is ultimately to be delivered in the form of a SIP message to the PSTN, the communication between the module 20 processing the user interaction and the module 30 driving the SIP protocol should be performed. Therefore, a user interaction module 22 implements a user interaction module 22 for handling PSTN telephony requests that users request when searching the web, and a protocol interface module for communicating with the PSTN / Internet interworking processing module 30. 21 is implemented as a protocol communication thread 210 in charge of inter-process socket communication. That is, by separately setting the protocol communication thread 210 for the interface with the PSTN / Internet interworking processing module 30 to be dedicated to the communication can minimize the load on the interface between modules.

The user thread 220 communicates the requirements of the web user to the protocol communication thread 210 through in-process communication using the queue.

5 shows the structure of a structure used to move a dial request entered by a web user from the user thread 220 to the protocol communication thread 210. By using this structure, a plurality of called parties can be designated.

The protocol communication thread 210 transmits a user's requirement to the PSTN / Internet interworking processing module 30 using TCP / IP socket communication. Since the PSTN / Internet interworking processing module 30 is implemented as a separate process, it uses an interprocess communication method.

6 illustrates an implementation method of the PSTN / Internet interworking processing module 30. The web server interface module 31, the SIP protocol module 32, and the PSTN interface module 33 are each implemented as a web server communication thread 310, a SIP protocol processing thread 320, and a PSTN interface thread 330.

The web server communication thread 310 forwards the dialing request from the web user to the SIP protocol processing thread 320 via TCP / IP socket communication with the protocol communication thread 210.

The SIP protocol processing thread 320 converts the dialing request received from the web server communication thread 310 into a SIP message and transmits the SIP message to the PSTN through the PSTN interface thread 330, and transmits the dialing result from the PSTN to the PSTN interface thread. Received as a SIP message through the 330 is converted into a primitive and informs the user through the web server communication thread (310). The SIP protocol processing thread 320 is composed of protocol elements 3220 generated when a message is received and a protocol coordinator 3210 managing these protocol elements.

The SIP protocol processing thread 320 drives a new protocol element 3220 each time a request of a web user arrives in the form of the structure described in FIG. Each protocol element 3220 performs a state transition generated through received messages, events, and the like. The SIP protocol processing thread 320 claimed in the present invention has the ability to manage timers and state transition machines in a single thread.

The PSTN interface thread 330 forwards the call request from the SIP protocol processing thread 320 to the PSTN and receives the result to the SIP protocol processing thread 320.

The PSTN / Internet interworking processing module 30 dynamically controls the connection with the PSTN in consideration of the load of the PSTN. In other words, if there is a call attempting to connect to the PSTN from the web user (when there is an activated SIP protocol element), the message is transmitted by connecting to the PSTN, but the call is automatically released when the call does not exist. 7 is a flowchart illustrating a process of a dynamic connection and release algorithm between the PSTN / Internet interworking processing module 30 and the PSTN.

When the connection is released, the device switches to the connection attempt state by using a new SIP protocol element. At this time, if the connection attempt is successful, the connection state and the connection state are performed, and the loop is performed by returning to the connection state.

As described in detail above, the web server equipped with the present invention can provide a PSTN telephone call from the web using the PSTN and the Internet interworking function. The web server has a small process capacity by an efficient user processing method using a servlet. At the same time, it is possible to provide the interworking interface with PSTN to many web users at the same time, and can greatly reduce the process load by implementing the module for the SIP protocol processing and the module for communication, and the dynamic in the PSTN / Internet interworking processing module. PSTN connection control can reduce the load on the PSTN.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following claims You will have to look.

Claims (7)

A web interface module 10 for managing web pages and performing PSTN dialing; A user interaction processing module 20 for generating a user interaction module 22 for interacting with each user when browsing to a web server through the web interface module 10; And The user interaction processing module 20 converts the PSTN dialing request requested by the user into a standardized SIP protocol and transmits the PSTN to the PSTN, and converts the result processed by the PSTN into a format that a web user can know and informs the PSTN. / Internet interworking processing module 30, characterized in that the web server device supporting multiple calls. The method of claim 1, The user interaction processing module 20 A user thread 220 for handling PSTN telephony so that the user can connect; And And a protocol communication thread (210) for transmitting a user's requirement to the PSTN / Internet interworking processing module (30) using TCP / IP socket communication. The method of claim 1, The PSTN / internet interworking module 30 automatically releases the connection when there is no call from the web user trying to connect to the PSTN. The method of claim 2, The communication between the user thread 220 and the protocol communication thread 210 is a process using a queue, the protocol communication thread 210 and the PSTN / Internet interworking processing module 30 is an inter-process communication using a socket. A web server device supporting multiple currencies. The method of claim 1, The PSTN / internet interworking processing module 30 is A web server communication thread 310 for making a call request from a web user via TCP / IP socket communication with the protocol communication thread 210; SIP protocol processing thread that converts and transmits a call request received from the web server communication thread 310 to a SIP message, converts the received SIP message into a primitive, and informs a user through the web server communication thread 310 ( 320); And A web supporting multiple calls, comprising a PSTN interface thread 330 which forwards the call request from the SIP protocol processing thread 320 to the PSTN and receives the result to the SIP protocol processing thread 320. Server device. The method of claim 5, The SIP protocol processing thread 320 includes a protocol element 3220 generated when a message is received, and a protocol coordinator 3210 managing the protocol elements 3220. . The method of claim 5, The SIP protocol processing thread (320) generates a new state transition machine to drive a protocol element (3220) whenever a request of a web user arrives in the form of a structure.