WO2011046272A1

WO2011046272A1 - Open interface third-party call communication service system using restful architecture and operation method thereof

Info

Publication number: WO2011046272A1
Application number: PCT/KR2010/001788
Authority: WO
Inventors: 심혁훈
Original assignee: (주)송도텔레콤
Priority date: 2009-10-16
Filing date: 2010-03-23
Publication date: 2011-04-21
Also published as: KR101047017B1; KR20110041583A

Abstract

The present invention relates to an open interface third-party call communication service system using RESTful architecture and operation method thereof. The system comprises: a RESTful gateway; a communication network; and a call terminal connected to the communication network. The RESTful gateway includes a RESTful open API processing part, which provides a client capable of accessing the internet with a communication connection service, recognizes a service type requested by the client, and calls and transmits the same, a third-party call control part, which generates and controls call resources, that have been transmitted by the RESTful open API processing part according to the client's recognized request, including caller number, dialed number, call status and ID value, and sends to the client the result of the request; a storage part, which stores the call resources generated by the third-party call control part; and a communication interworking part which transmits a call request from the client to the outside and exchanges messages concerning the result thereof, and receives a call status and then transmits the result thereof to the third-party call control part. The communication network executes third-party call connection and performs a call connect service requested through the communication interworking part of the RESTful gateway. The present invention is advantageous in that it allows a client who uses the third-party call communication service to access the RESTful gateway by using the RESTful architecture, such that the service step and the access step may be simplified and facilitated for the client to receive the third-party call communication service.

Description

Three-way call communication service system and operation method of open interface using RESTFUL architecture

The present invention relates to a three-party call communication service system and an operation method of an open interface using a RESTful architecture, and more specifically, to allow a client to access a RESTful gateway using a RESTful architecture when the client uses a three-way call communication service. The present invention relates to a three-way call communication service system of an open interface using a RESTful architecture that allows a client to easily use a three-way call communication service by simplifying a service step and an access step for receiving a call communication service.

In general, the three-way call communication service using an open gateway uses a number of other communication terminals desired by the user by accessing a provider server installed by a provider providing the three-way call communication service to use the three-way call communication service. The server converts the identification value transmitted from the user's terminal into a prescribed protocol and transmits it to an open gateway, and calls the service according to the identification value in the open gateway to perform three-way call communication or one-to-one communication with another communication terminal requested by the user. Connected to communicate with users and other users.

In addition, the commonly used open gateway uses SOAP (Simple Object Access Protocol).

Here, when a user requests a three-way call communication service to make a call connection between other communication terminals or communication terminals, a callback signal of whether or not a call is possible is transmitted from an open gateway and a server to the user's terminal that requested the three-way call communication service. The call can be made only when the response signal for the callback signal is transmitted.

However, in order to use the three-way call communication as described above, the user connects to the server of the provider providing the three-way call communication service and changes the protocol method according to the user's service request from the server to a protocol that can be recognized by the open gateway. Since the server had to change every request of the user's service, there was a problem that the server was overloaded or enlarged.

In addition, when a user uses a three-way communication service, the call state and call termination state between other users are not automatically transmitted from the open gateway or the server when the user is excluded, so the user must check the open gateway or the server individually. there was.

In addition, the SOAP method used in the server can access only a designated user to a specified server, and there is a problem that it is difficult to reassign a user assigned to a server to a new server even when a new server is constructed.

The present invention provides a call connection service to a client capable of accessing the Internet, and includes a RESTful open API processing unit for recognizing, calling, and transmitting a type of service requested by the client, and transmitting the RESTful open API processing unit according to a client request recognized and transmitted. A third party call controller for generating and controlling a call resource including a number, a received number, a call state, and an identification value, and responding to a client according to a client's request, and a storage unit for storing the call resource generated by the third party call controller. A RESTful gateway comprising a call interworking unit for transmitting a call request requested by a client to the outside, exchanging a message about the result, receiving a call state, and transmitting the result to a third party call controller; and a call interworking unit of the RESTful gateway. To perform the requested call connection service And a communication network to perform third party call so that the call connection, a call is made to a terminal connected to the communication network.

As described above, the present invention allows the client to access the RESTful gateway using the RESTful architecture when the client uses the three-way call communication service, thereby simplifying the service step and the connection step for the client to receive the three-way call communication service. There is an advantage to use the three-way call service.

In addition, the RESTful architecture is used when the client uses the three-way communication service, so that when the client requests the three-way call service with the other communication terminal, the signal from the client to the RESTful gateway is immediately identified to the network. The RESTful gateway and the communication network can be recognized at a time without changing the protocol to be able to change the protocol, which has the advantage of preventing the oversizing and oversizing of the RESTful gateway.

When the client requests a three-way call communication service, the client automatically requests a call status signal from the client to the RESTful gateway, and transmits a response signal from the RESTful gateway to the client. There is an advantage that the client can automatically check the call status and call termination state without having to check each client.

In addition, when the RESTful gateway transmits a response signal according to a call status request signal to the client, the RESTful gateway does not continuously transmit to the client arbitrarily, but only to the client when a call status request signal transmitted for a predetermined time is transmitted from the client. By transmitting, there is an advantage that can prevent overload of RESTful gateway.

In addition, the RESTful gateway has the advantage of improving the operability of the RESTful gateway by building a system using a RESTful architecture, when using a plurality of RESTful gateways connected to each other, excellent compatibility and expandability between RESTful gateways.

1 is a block diagram showing a three-way call communication service system of an open interface using the RESTful architecture of the present invention.

2 is a block diagram illustrating a RESTful gateway of a three-way call communication service system of an open interface using the RESTful architecture of the present invention.

Figure 3 is a flow diagram of a three-way call communication service system of the open interface using the RESTful architecture of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Client 20: RESTful Gateway

21: RESTful open API processing unit 22: third party call control unit

23: storage unit 24: call interlocking unit

25: application server 30: communication network

40: call terminal

100: Three-way call communication service system of open interface using RESTful architecture

Looking at the configuration of the present invention for achieving the above object is as follows.

The three-way call communication service system 100 of the open interface using the RESTful architecture according to the present invention includes a client 10, a RESTful gateway 20, a communication network 30, and a call terminal 40 as shown in FIGS. )

First, the RESTful gateway 20 provides a call connection service to a client 10 capable of accessing the Internet, and recognizes, calls, and transmits a type of service requested by the client 10, and transmits the RESTful open API processor 21. According to the request of the client 10 recognized and transmitted by the RESTful open API processing unit 21, a call resource including the calling number, a receiving number, a call state, and an identification value is generated and controlled, and the result according to the request of the client 10. The third party call control unit 22 to respond to the client, the storage unit 23 for storing the call resources generated by the third party call control unit 22, and transmits the call request requested by the client 10 to the outside It is composed of a call interlocking unit 24 to exchange a message for the result and receive the call status and transmit the result to the third party call control unit 22.

Here, the RESTful gateway 20 checks the call state included in the call resource from the client 10 to the RESTful gateway 20 when the third party call call between the calling number and the receiving number is connected by the request of the client 10. If the request for a predetermined time is transmitted to the RESTful gateway 20 transmits a response signal for the call state to the client 10, and when receiving the end response signal from the client 10, the response to the client 10 The third party call control unit 22 stops the signal, and the third party call control unit 22 transmits the response signal transmitted to the client 10 only when the call state request signal is input at a predetermined time interval. It is desirable to transmit to (10).

In addition, the RESTful gateway 20 allows an external application server 25 to be connected to separately store data stored in the controller 23, and the data stored in the storage 23 may be stored in the client 10. When the call is terminated, it is good to be transmitted to the application server 25 immediately after the termination is deleted from the storage unit 23, or stored in the storage unit 23 for a period of time to be transmitted to the application server 25.

In addition, the communication network is configured to perform a third party call call connection to perform the requested call connection service through the call interlocking unit 24 of the RESTful gateway 20.

The call terminal is configured to perform a call by a call request of the client 10 and to be connected by the communication network 30.

In addition, a plurality of RESTful gateways 20 may be connected and used, and compatibility and extensibility between the RESTful gateways 20 may be improved, thereby improving operability of the RESTful gateway 20.

Looking at the operation according to a preferred embodiment of the present invention having the configuration as described above are as follows.

First, as shown in FIG. 3, the client 10 accesses the RESTful gateway 20 by using a calling number, a receiving number, and a type of service that the client 10 wants to call in order to use a three-way call service. When the RESTful open API processing unit 21 of the RESTful gateway 20 recognizes and analyzes the type of service and transmits it to the third party call control unit 22, the third party call control unit 22 generates a call resource and connects the call. The communication request to the communication network 30 through the unit 24.

In detail, the client 10 capable of internet access can create, read, update, and delete RESTful (Representational State Transfer: HTTP) for three-way call communication. It is used to define web service API which is used to manage the available resources. It is one of the software architecture styles and the user uses only POST, GET, PUT, and DELETE commands to perform the above four functions in the Internet web browser. When connected to a RESTful gateway, it is an architecture style that can be easily accessed while reducing the connection step of a server to perform a desired kind of service on the web. SOAP (Simple Object Access Protocol) is generally used. Protocol), and it is lighter, so it is easier to build and connect to the server.) Is a RESTful gateway 20 to the RESTful gateway using a POST, which is a command for making a call connection among the commands for performing the four functions mentioned above, the caller 10, the receiving number, the type of service desired by the client 10. Connect to the RESTful gateway 20.

Then, the third party call control unit 22 generates (POST), inquires (PUT), and updates (GET) call resources in the third party call control unit 22 according to the type of service transmitted from the RESTful open API processing unit 21. When the client 10 makes a call request for the three-way call communication as described above, the third party call controller 22 recognizes the generation of the call resource and generates the call resource accordingly. The call resource including the calling number, the received number, the identification value, and the like is stored in the storage unit 23.

Here, a call request is made through the communication network 30 between the client 10 or another call terminal 40 according to the calling number and the receiving number requested by the client 10 to the RESTful gateway 20. The third party call controller 22 of the gateway 20 automatically requests a call state included in the call resource requested by the client 10 for a predetermined period of time.

In addition, when a call resource is stored in the storage unit 23, the identification number is stored in the address of the table generated in the storage unit 23 according to the type of service.

Then, the third party call control unit 22 of the RESTful gateway 20 inquires the corresponding service by referring to the address or recognition number of the table stored in the storage unit 23 for the three-way call communication service requested by the client 10 ( PUT) or a response signal according to the request (GET) of the client 10 is automatically generated, inquired and transmitted by the third party call controller 22. (S10)

Then, when the third party call control unit 22 controls the call interlock unit 24 to request the call number and the received number inputted by the client 10 to the communication network 30 to be connected to the call, the communication network 30 ) Is to connect the call between the client 10 and the call terminal 40 or another call terminal 40 according to the calling number and the receiving number.

This transmits a call connection signal from the communication network 30 to the call terminals 40 corresponding to the calling number and the receiving number in the communication network 30 according to the identification value transmitted from the RESTful gateway 20 and the signal from the call terminal 40. When received, it is the communication between the calling number and the receiving number.

In addition, when a three-way call communication is performed according to a calling number and a receiving number requested by the client 10, the call state signal requested for a predetermined time when the client 10 requests a call to the RESTful gateway 20 is a RESTful gateway. Only when transmitted to 20, the response signal is transmitted from the third party call control unit 22 of the RESTful gateway 20 to the client 10.

For example, when the client 10 transmits the current call state to the third party call control unit 22 of the RESTful gateway 20 every 1 minute, the third party call control unit 22 sends the client 10 every minute. It checks the call state between the requested calling number and the receiving number and transmits the response signal to the client 10.

When the third party call control unit 22 of the RESTful gateway 20 transmits a call state signal from the third party call control unit 22 to the client 10 at any time, the RESTful gateway 20 connects to the RESTful gateway 20. Sending a lot of signals to the user at the same time, the load of the RESTful gateway 20 is generated.

Thus, in order to prevent this, the client 10 repeatedly transmits a request signal for a predetermined time, and the third party call controller 22 of the RESTful gateway 20 sends a response signal only when the request signal is transmitted, thereby restoring RESTful. This is to prevent the overload of the gateway 20.

Here, when the RESTful service is used, the client 10 transmits a call state request signal to the RESTful gateway 20 while POST, which is a command used for third-party call communication, is used. In this case, the RESTful gateway 20 The third party call control unit 22 performs a function of update (GET), and in order to detect a call state request signal requested by the client 10, the client 10 uses a RESTful gateway 20 to use a three-way call communication service. (P20) performs a function to inquire (PUT) the value of the address or address of the table stored in the third party call control unit 22 or the storage unit 23.

Meanwhile, when the call between the calling number and the receiving number requested by the client 10 is completed, the communication network 30 recognizes the end of the call between the calling number and the receiving number and transmits it to the call linking unit 24 of the RESTful gateway 20. The third party call control unit 22 recognizes this. (S30)

At this time, the client 10 continuously transmits a call state request signal to the third party call controller 22 of the RESTful gateway 20, and the third party call controller 22 continuously transmits a response signal accordingly. Will be.

In addition, when the third party call control unit 22 of the RESTful gateway 20 recognizes the end of the call between the calling number and the receiving number, the state of the call resource is changed to the ending call.

Here, the third party call control unit 22 of the RESTful gateway 20 changes the state of the call resource stored in the storage unit 23 and recognized by the third party call control unit 22 to the end of the call.

When the call state check request signal transmitted from the client 10 is transmitted for a predetermined time, the client 10 initially inputs the third party call control unit 22 of the RESTful gateway 20 to the client 10. The client 10 will recognize that the call between the calling number and the receiving number is terminated by sending an end signal indicating that the call between the calling number and the receiving number has ended.

Here, even if the communication termination message is transmitted from the communication network 30 to the third party call control unit 22 of the RESTful gateway 20, the client 10 waits without notifying the client 10 immediately, and then the RESTful gateway 20 from the client 10. When the call state request signal is requested to the third call controller 22, the call termination message is sent to the client 10.

Then, the third party call control unit 22 of the RESTful gateway 20 stores the call resource used by the client 10 for the three-way call communication in the storage unit 23 and the call stored in the storage unit 23. It transmits data such as resources to the application server 25 and deletes the data stored in the storage unit 23.

In this case, the three-party call communication requested by the client 10 is terminated, and data is stored and deleted in the storage unit 23 to delete the RESTful service (DELETE).

In addition, when data is deleted from the storage unit 23, the call between the calling number and the receiving number is terminated and transmitted from the storage unit 23 directly to the application server 25 may be deleted from the storage unit 23, If it is stored in the storage unit 23 for a predetermined size or more than a predetermined size, it may be deleted from the storage unit 23 while being transmitted to the application server 25.

This is because when the amount of data stored in the storage unit 23 of the RESTful gateway 20 increases, the RESTful gateway 20 needs to be oversized and oversized, so that the storage unit 23 has only a certain size to prevent this. The data is stored and transmitted to the application server 25 and the data stored in the storage unit 23 is deleted.

In addition, when the client 10 accesses the service to use the three-way call communication service, by allowing the service provider to access the RESTful gateway 20 using a simple and lightweight RESTful architecture on the web, the service provider reduces the service construction cost and reduces the server. It can be easily managed, the client 10 will be able to conveniently receive the three-way call communication service only by a simple input.

In addition, when the client 10 performs a three-way call communication, if a call is connected between other call terminals 40 except for the client 10, the client 40 ends the call between the other call terminals 40. Unless the client 10 confirms one by one, but the client 10 requests a three-way call service to the RESTful gateway 20, the client 20 automatically calls the RESTful gateway 20. As the request confirmation signal is transmitted, the RESTful gateway 20 transmits a response signal corresponding to the client 10, so that the client 10 can automatically check the current call state.

On the other hand, when the client 10 receives the response signal for the call state from the RESTful gateway 20, when the RESTful gateway 20 automatically sends a response signal to the client 10, numerous clients 10 By sending a response signal to the, the RESTful gateway 20 is overloaded.

Thus, in order to prevent the RESTful gateway 20 from being overloaded, the RESTful gateway 20 transmits the response signal only when a call state request signal is transmitted from the client 10 to the RESTful gateway 20 at regular intervals. To prevent overload.

In addition, a plurality of RESTful gateways 20 may be connected and used, and the RESTful gateway 20 uses a RESTful architecture with excellent compatibility and scalability, thereby allowing the client 10 to access the RESTful gateway 20. ) Can be automatically and automatically assigned to the new RESTful gateway 20, it is possible to provide a seamless three-way call service to the clients (10) accessing the RESTful gateway (20).

Claims

A method of operating a three-way call communication service of an open interface using a RESTful architecture using a client, a RESTful gateway, a communication network, and a call terminal,

When the client connects to the RESTful gateway using the calling number, the receiving number, and the service type to perform the third party call communication, the RESTful open API processing unit of the RESTful gateway recognizes and analyzes the service type and transmits it to the third party call controller. A first step (S10) of generating a call resource in the third party call control unit and making a call request to a communication network through a call interlocking unit;

A second step (S20) of connecting a call between a caller and a call terminal input by the client or the client through a third party call connection in the communication network when the call request is transmitted from the RESTful gateway;

A third step (S30) of transmitting a call termination message from the communication network to the RESTful gateway when the call between the client or the client and the caller inputted by the client ends;

After the RESTful gateway receives the call termination message from the communication network, the state of the call resource is changed to call termination, and when the call state confirmation request of the client is sent to the RESTful gateway, the call termination is notified to the client to notify the call termination. Operation method of the three-way call communication service of the open interface using the RESTful architecture characterized by consisting of four steps (S40).
According to claim 1, wherein the third party call control unit in the first step (S10) according to the type of service transmitted from the RESTful open API processing unit in the third party call control unit to generate, inquire, update, delete the call resources and send Creates a call resource including a number, a receiving number, a call state, and an identification value and stores it in a storage unit.Responds to a client by a client request to the call state included in the call resource. A method of operating a three-party call communication service of an open interface using a RESTful architecture, characterized by requesting a call between a call terminal or a client input call number and a call terminal.
According to claim 1, If the client requests a call connection to the RESTful gateway in a second step (S20), and then request the status of the current call resources at regular intervals, the current call resources in the third party call control unit of the RESTful gateway A method of operating a three-way call communication service of an open interface using a RESTful architecture characterized by continuously transmitting the state of a client to a client.
According to claim 1, When the RESTful gateway receives a call termination message in the communication network in the fourth step (S40), the third party call control unit updates the call state of the call resources to the end and the call state request of the client Responds in response to the termination signal, and if the size of the call resources stored in the storage exceeds a certain level, the three-way call communication service of the open interface using the RESTful architecture characterized by transmitting the data from the storage to the application server and storing the data. How to operate.
The request signal according to any one of claims 1 and 2, wherein when the RESTful gateway transmits a call state to a call resource to the client in steps S10 and S40, the client requests a predetermined time. A method of operating a three-way call communication service of an open interface using a RESTful architecture, which is characterized in that it is transmitted to a client only when the message is transmitted to a RESTful gateway.
The RESTful open API processing unit 21 provides a call connection service to the client 10 capable of accessing the Internet and recognizes, calls and transmits the type of service requested by the client 10, and the RESTful open API processing unit 21 recognizes the call. A third party call controller for generating and controlling a call resource including a calling number, a receiving number, a call state, and an identification value according to the request of the client 10, and responding to the client with the result according to the request of the client 10; 22), the storage unit 23 for storing the call resources generated by the third party call control unit 22, transmits the call request requested by the client 10 to the outside and exchanges messages on the results and call state RESTful gateway 20 consisting of a call interlocking unit 24 for receiving and transmitting the result to the third party call control unit 22;

A communication network 30 for performing a third party call call connection to perform the requested call connection service through the call interlocking unit 24 of the RESTful gateway 20;

The three-party call communication service system of the open interface using a RESTful architecture, characterized in that made by the call terminal of the client 10 and the call terminal 40 connected by the communication network 30.
The method of claim 6, wherein the RESTful gateway 20 is included in the call resource from the client 10 to the RESTful gateway 20 when a third party call call between the calling number and the receiving number is connected at the request of the client 10. When the request for checking the call state is transmitted for a predetermined time, the RESTful gateway 20 transmits a response signal for the call state to the client 10, and when the end response signal is received from the client 10, the client 10. A three-way call service system with an open interface using a RESTful architecture characterized by stopping the response signal sent to the network.
The third party call control unit 22 of the RESTful gateway 20 is a third party only when the call state request signal is input by the client 10 at a predetermined time interval. Three-way call communication system of the open interface using a RESTful architecture characterized in that the call control unit 22 is transmitted to the client (10).
The method according to claim 6, wherein the RESTful gateway 20 is connected to an external application server 25 so that the data stored in the control unit 23 can be stored separately, and the data stored in the storage unit 23 When the call of the client 10 is terminated, it is transmitted to the application server 25 immediately after the termination is deleted from the storage unit 23, or stored in the storage unit 23 for a period of time is characterized in that it is transmitted to the application server 25 A three-way call communication service system with an open interface using RESTful architecture.
The RESTful gateway 20 can be constructed in plural numbers, and the RESTful gateway 20 uses a RESTful architecture, thereby providing excellent scalability and compatibility between the RESTful gateways 20, thereby providing a plurality of RESTful gateways 20. A three-way call service system with an open interface using RESTful architecture, which is characterized by improved operability.