KR20210133820A - The distributed internet phone system - Google Patents

Abstract

Currently, many companies, such as telecommunication companies, SNS service providers, and the like, are providing Internet phone services due to the development and speed of the Internet and the Internet phone services using smartphone applications are also being provided due to spread of smartphones. However, since each service provider provides services through their own servers, the service provider's burden on facility investment, such as server expansion and the like, increases significantly due to increase in subscribers and call quality deteriorates, such as delays, dropouts and the like, as traffic increases. The present invention relates to a distributed Internet phone system in which a server is constructed by group unit, such as a home, a company, an institution, a group, a region, and the like, instead of a server of a specific company to enable members to make a call therebetween and enable members to make a call between the members belonging to different groups by receiving information about the other party's server from a central server and connecting both group servers. According to the present invention, since a server is constructed by group unit to provide a service between group members with a high call volume, a service can be easily expanded. In addition, since services between members of different groups are provided by using a plurality of servers constructed for each group rather than a central server, burden on facility investment is dispersed even if the number of users increases, thereby facilitating facility investment and providing good call quality.

Description

The distributed internet phone system

Smartphone, Internet phone, VoIP, mVoIP, H.323

Currently, with the development and speed of the Internet, many companies such as telecommunication companies as well as SNS service providers are providing Internet phone services.

However, since each service provider provides services through their own servers, the burden on service providers for facility investment such as server expansion due to the increase in subscribers increases significantly. This lowering problem occurs.

The present invention establishes a server in a group unit such as home, company, institution, organization, region, etc. instead of a server of a specific company, and makes calls between members, and when calling between members belonging to different groups, information on the server of the other party from the central server It is an invention for a distributed Internet phone system that connects and calls through the servers of each group after receiving

According to the present invention, the service can be easily expanded by building a server in a group unit and providing a service among group members with a high call volume, and using a plurality of servers built in each group unit instead of a central server, it is possible to provide services for different groups. By providing services among members, even if the number of users increases, the burden on facility investment is dispersed, making facility investment easier and providing high-quality call quality.

1 is an illustration of a configuration diagram according to the present invention.
1 is an example of a call connection flow chart according to the present invention.

The present invention provides a video, text, and data transmission/reception service as well as voice calls between subscribers as an Internet phone system using a plurality of servers.

In this description, a voice call will be described as an example.

For the present invention, it can be configured as follows.

a central server that manages phone numbers and relay servers;

Each relay server that provides Internet phone service and

Internet-connected terminal

is composed of

The central server stores the phone number and the IP address of the relay server in which the phone number is registered, and returns the IP address of the relay server in which the requested phone number is registered when a request is made from a terminal or relay server.

If one central server cannot provide service for all phone numbers, multiple central servers can be provided for each country or region.

In this case, each relay server or terminal must have the IP address of each central server or be able to extract the IP address of the central server from the phone number.

For example, assuming that the domain name of the service according to the present invention is telno.net, the central server in Seoul, Korea can be defined as 2.82.telno.net.

The relay server establishes a connection and relays transmission and reception of voice, video, text, or data when there is a connection request to a terminal registered to itself.

Relay servers can be installed in each home, company, group, or region to make free or low-cost calls between members.

In other words, by installing a device or program that acts as a relay server in your home, and registering a regular phone number or a cell phone number of a family member in the device, you can use the same relay server between family members regardless of the geographical location of the member. You can call for free, and you can also make free calls with other family members who have installed relay servers.

Alternatively, by installing a relay server for each company or organization, and registering the general phone numbers or mobile phone numbers of the employees, even if they are geographically separated, such as a branch or agency, they use the same relay server to make free or low-cost calls, You can make free or low-cost calls to employees of other companies or organizations that have installed relay servers.

Alternatively, by installing a relay server in each city and province, and registering the general phone number or mobile phone number of the local residents, regardless of the geographic location of the residents, use the same relay server to make free or low-cost calls between residents of the same area. , you can make free or low-cost calls to residents of other areas where relay servers are installed.

Of course, interlocking between relay servers installed in each home, company, group, or region, for example, a person registered in a relay server installed at home can also call a person registered in a relay server installed in a company, group or region for free or low cost can do.

However, since most households use one Internet line and connect to the Internet through the router, if you connect to a specific port of the router using functions such as port forwarding of the router, it should be set up so that it can be connected to the relay server inside the router.

In addition, if the IP address of the relay server is changed in case of using a dynamic IP like the Internet line used in most homes, the central server or the relay server recognizes this and registers the changed IP address in the central server.

Of course, even if a dynamic IP is used, there is no need to use the server name instead of the IP address and if the server name can be found using DDNS.

A relay server installed in a home, company, or organization can connect a regular phone by adding a device that supports a regular phone to the relay server like the current Internet phone gateway device. , the relay server itself may play the role of a key phone or a private exchange.

For convenience of explanation, the relay server in which the calling phone number is registered is called an outgoing relay server, and the relay server in which the receiving phone number is registered is called a reception relay server.

A terminal is a terminal that can connect to the Internet.

A device that cannot connect to the internet, such as a regular phone, includes a device that allows the device to connect to the internet.

In the case of using a terminal having an original phone function such as a smart phone or a regular phone, if the recipient is a user using the Internet phone according to the present invention, the connection is made through the Internet phone. can

Multiple phone numbers such as a mobile phone number, home phone number, and work phone number can be registered in one terminal.

In this case, since the relay server may be different for each phone number, the terminal registers it with each relay server for each phone number.

In the case of adding multiple phone numbers to one terminal, the incoming ringtone for each phone number can be different or can be distinguished by displaying the incoming phone number on the screen.

Also, since most of them use one mobile phone instead of using separate personal and business mobile phones, one phone number can be registered in multiple relay servers just as you can register your mobile phone number to the company relay server and also to the home relay server. may be

In addition, when multiple people share a phone number as follows, the following functions can be added to the relay server or terminal.

When multiple smartphones share one phone number, such as when a home phone number is registered on each smartphone of a family member, the priority is set for each device, and the connection is made to the device with the highest priority first, and calls are made for a certain period of time. It provides functions such as automatically forwarding to the next number if not answered, and returning the call to another person during a call.

During company calls, there are cases where multiple people share a phone number without assigning a direct dial number to each individual. And you can stop ringing when anyone answers the call.

If the terminal uses a private IP address and does not exist in the relay server's internal network, the relay server cannot connect to the terminal, so the terminal always connects to its own relay server for reception and maintains the connection state.

In addition, in the distributed Internet telephony system according to the present invention, since the number of terminals managed by one relay server is limited, even if terminals subscribed to the relay server are connected at the same time, the relay server can sufficiently cover it.

The following describes the setting process for the present invention.

First, the relay server manager registers the relay server with the central server.

In the case of fixed relay servers such as regional units, this process can be omitted and the central server administrator can register each relay server to the central server. This process is necessary for the central server to check each relay server when there is a server or when the relay server is flexible, such as when registration and cancellation of relay servers are free.

First, the relay server administrator can perform procedures such as membership registration in the central server.

At this time, you can verify your identity in a variety of ways, such as a public certificate, i-PIN, mobile phone, or document submission.

Step 1, the relay server administrator registers the relay server with the central server.

Step 1-1, the relay server administrator accesses and logs in to the central server through the relay server.

Step 1-2, the relay server manager provides relay server information such as the IP address or server name of the relay server, or recognizes it automatically by the central server.

Step 2, the central server stores the relay server's identification information and IP address or server name.

The identification information may be an ID input by the relay server administrator, a separate unique number issued by the central server, or unique information of the relay server device such as a MAC address.

Step 3, the relay server stores the identification information assigned to it.

Of course, the relay server administrator may store the identification information in the relay server after performing the above process through another computer.

Then, when the relay server is running, the central server authenticates the relay server by automatically transmitting identification information to the central server or automatically recognizing the relay server by the central server.

In addition, if the information of the relay server is changed, the relay server manager performs the authentication procedure again or the relay server transmits its own information to the central server to receive authentication again.

Each of the following users registers their phone number in the central server and relay server according to the following procedure.

When multiple phone numbers are registered in one terminal, each phone number is registered.

If you know the relay server to connect to first, you can process it as follows.

The user may perform procedures such as membership registration in the relay server in advance.

At this time, you can verify your identity in a variety of ways, such as a public certificate, i-PIN, mobile phone, or document submission.

In addition, the user installs the Internet phone app according to the present invention in the terminal.

Step 1, the user accesses the relay server through the terminal and logs in.

Step 2, the user inputs a phone number and requests registration to the relay server.

Register your mobile phone number, home phone number, or work phone number.

When a phone number is assigned like a smartphone and the assigned phone number can be automatically recognized, the first assigned phone number is automatically recognized.

A phone number other than the phone number assigned to a terminal that is not assigned a phone number, a terminal that cannot automatically recognize the assigned phone number, or a connected terminal is directly entered by the user. have.

Alternatively, an e-mail address may be used in addition to a phone number, or a phone number to be used may be selected when a new phone number is assigned by the Internet phone system according to the present invention.

Step 3, the relay server registers terminal identification information and phone number.

The identification information may be an ID entered by the user, a unique number automatically issued by the relay server, or unique information such as a MAC address of the terminal, and then the terminal transmits the identification information to the relay server or relays The relay server can authenticate the terminal in various ways, such as the server automatically recognizes the terminal.

Step 4, the relay server or the terminal transmits the identification information and phone number of the relay server to the central server.

In this case, the identification information of the terminal may be transmitted together so that the central server can recognize the terminal.

Step 5, the central server registers the transmitted relay server information and phone number.

At this time, if the terminal's identification information is transmitted, it may be stored.

Step 6, upon successful registration, the terminal stores its own identification information, phone number, and relay server information for the corresponding phone number.

Of course, the user can input information into the terminal after performing the above process through another computer.

Although the procedure for the terminal to register with the relay server and the relay server to register with the central server has been described above, it is also possible to access and register with the central server as follows.

Again, the user may perform a procedure such as registering as a member in the relay server in advance.

In addition, the user installs the Internet phone app according to the present invention in the terminal.

Step 1, the user accesses the central server through the terminal and logs in.

Step 2, the user inputs a phone number and requests registration from the central server.

Step 3, the central server automatically allocates a relay server to be accessed by the user or allows the user to select a relay server, and then registers the relay server identification information and phone number.

Step 4, the central server registers terminal identification information and phone number.

Step 5, the central server or the terminal transmits the terminal identification information and phone number to the relay server, and the relay server registers it.

Step 6, upon successful registration, the terminal stores its own identification information, phone number, and relay server information for the corresponding phone number.

Again, the user may input information into the terminal after performing the above process through another computer.

When information on the terminal is changed or when a relay server with a registered phone number is changed, a new authentication procedure is performed by accessing each relay server or central server.

After that, the terminal connects to each relay server as follows and maintains the connection state.

When multiple phone numbers are registered in one terminal, each phone number is connected to each relay server.

Step 1, the user terminal accesses a relay server with a registered phone number

Step 2, when the relay server uses a dynamic IP, the IP address of the relay server can be changed, so that the terminal can connect to another relay server.

Therefore, the relay server checks whether the received phone number is a phone number registered to itself, allows access if it is a registered phone number, and returns an error if it is an unregistered phone number.

Of course, when the relay server uses the server name instead of the IP address, it is possible to prevent the connection to another relay server due to the change of the IP address.

Step 3, when an error is returned from the relay server that the phone number is not registered to the terminal, the terminal accesses the central server and transmits its own phone number.

Step 4, the central server searches for the relay server in which the corresponding phone number is registered from the transmitted phone number and returns it.

In step 5, the terminal updates its relay server information and proceeds to step 1 to access the relay server again.

In this process, the relay server or the central server may authenticate the terminal, and may return an error in case of an unauthenticated terminal.

In the above, instead of accessing the relay server first, the relay server can be accessed after first accessing the central server to obtain the IP address of the relay server for the phone number.

The process of making a call using the present invention will be described in detail step by step with drawings.

Step 1, the user enters the recipient's phone number and makes a call.

When multiple phone numbers are registered in one terminal, you can select an outgoing phone number.

Step 2, if the receiving relay server information is stored in the sender terminal, the terminal proceeds to step 9 to access the receiving relay server. Otherwise, it transmits the recipient's phone number to the outgoing relay server and proceeds to step 3.

Step 3, the outgoing relay server checks the transmitted recipient's phone number.

In step 3-1, it is checked whether the recipient's phone number is an internal phone number subscribed to. If it is an internal phone number, proceed to step 9 to connect to the recipient.

In step 3-2, if the recipient's phone number is not an internal phone number but the receiving relay server information is stored in the relay server database, the stored receiving relay server information is returned.

Without returning a result to the terminal, it may bypass directly to the receiving relay server.

In step 3-3, if the recipient's phone number is neither an internal phone number nor stored in the database, an error is returned.

It is possible to request the receiving relay server information from the central server without immediately returning the result to the terminal.

Step 4, the terminal operates as follows according to the result returned from the originating relay server.

If the receiving relay server information is returned, proceed to step 7 to access the receiving relay server, and if an error is returned, connect to the central server to transmit the recipient's phone number and proceed to step 5.

Step 5, the central server retrieves the relay server information in which the corresponding phone number is registered from the transmitted recipient's phone number and returns it.

In step 5-1, the central server searches for the transmitted recipient's phone number and, if not found, returns an error because the recipient's phone number is not registered in the Internet phone service according to the present invention.

Step 5-2, if searched, the central server returns the information of the receiving relay server.

Of course, even in this case, the result can be bypassed directly to the receiving relay server without returning a result to the terminal.

At this time, if the receiving phone number is registered in multiple relay servers, the relay server list may be returned and steps 7 to 8 may be sequentially repeated until the calling terminal is connected to the receiving terminal.

Step 6, if the receiving relay server information is returned, the terminal proceeds to step 7 to access the receiving relay server, and if an error is returned, proceeds to step 11.

Step 7, the receiving relay server checks the recipient's phone number.

If the relay server uses a dynamic IP, the information stored in the calling terminal or the outgoing relay server may be different from the actual receiving relay server.

In step 7-1, the receiving relay server checks whether it is a registered phone number, and returns an error if it is an unregistered phone number.

In step 7-2, the receiving relay server checks whether the corresponding recipient is connected if it is a phone number registered to itself, and returns an error to the terminal if it is not connected.

In step 7-3, if it is registered and connected to itself, the receiving relay server proceeds to step 9 and connects.

Step 8, the caller terminal operates as follows according to the return result.

If the connection is made using information stored in the terminal or the outgoing relay server, but the phone number is not registered in the incoming relay server, the information on the incoming relay server may be different, so the terminal proceeds to step 6 and requests the incoming relay server information from the central server. do.

If the connection is made using the information received from the central server, there is no further connection method, so proceed to step 11.

Even if the recipient's phone number is not currently connected, the process proceeds to step 11.

Step 9, the receiving relay server establishes a connection to the receiver, and after connection, relays transmission and reception of voice, video, or data.

Step 10, if connected normally, end the call.

The terminal or the outgoing relay server may store the receiving relay server information in its own database.

In step 11, the terminal notifies the user of the error content through a screen or voice.

When the terminal is a terminal having a phone function, such as a smart phone or a regular phone, it can be connected using the calling function of the terminal itself.

In order to reduce the load on the central server, an attempt was made to connect to the receiving relay server using the information stored in the terminal or the outgoing relay server. After obtaining the relay server information with the registered number, it is also possible to access the receiving relay server.

The relay server authenticates the terminal when each terminal registered to it connects, and the central server authenticates the registered relay server. there may not be

Therefore, in the connection step to authenticate the sender terminal, the central server can be accessed through the outgoing relay server, or the incoming relay server can be accessed through the outgoing relay server or the outgoing relay server and the central server. Authenticate the terminal.

First, the sending relay server transmits information that can identify the sender terminal, such as the IP address of the sender terminal, to the receiving relay server, and the receiving relay server checks and authenticates the IP address of the sender terminal.

Second, when the sender terminal requests a call, the sending relay server generates a unique number and transmits it to the receiving relay server and the sender terminal. Authenticate.

A domain server can also be used as a central server. In this way, the domain server has the IP address of the relay server for each phone number as follows.

For example, if the IP address of the relay server in a household is 211.111.222.333, the home phone number is 02-2293-7840, and the member's mobile phone number is 010-1111-1111, 010-2222-3333, the following information is provided. there may be

0222937840.telno.net: 211.111.222.333

01011111111.telno.net : 211.111.222.333

01022223333.telno.net: 211.111.222.333

At this time, when the caller presses the other party's phone number, the terminal can obtain the IP address of the relay server by appending the domain name after the phone number.

In the case of having relay servers in each region

022293.telno.net: 211.111.222.333

You can also register part of phone numbers such as area code and area code.

In addition, although the above description describes a case in which voice, video, text, and data are transmitted and received through the receiving relay server after the sender terminal is connected to the receiver, voice, video, text, and data are transmitted and received through the sending relay server and the receiving relay server You may.

Also, in the above description, the case of connecting and making a call using the receiver's relay server has been described as an example, but it is also possible to connect and make a call using the sender's relay server as follows.

That is, when the central server transmits the sender's relay server and sender information together with the receiver's information to the receiver's relay server, and the receiver's relay server transmits the sender's relay server and sender information to the receiving terminal, the receiving terminal is the sender's relay server You can connect to and make calls.

Alternatively, the caller and the receiver can be connected using a relay server to make a call as follows.

That is, the sender-side relay server receives the receiver-side relay server information from the central server and connects to the receiver-side relay server, and the sender and the receiver may make a call through the sender-side relay server and the receiver-side relay server.

The above is only one embodiment of the present invention, and various modulations and modifications are possible.

drawing reference

Claims (6)

It consists of multiple relay servers that relay Internet calls, users belonging to each relay server, and a central server that holds information on relay servers to which each user belongs. In case the caller and the receiver belong to different relay servers, information on the relay server to which the other party belongs is received from the central server, and then connects through the receiver or the sender’s relay server, and sends/receives voice, video, or data. Distributed Internet phone system characterized by
as in clause 1
When the relay server to which the sender and receiver belong are different
The sender terminal accesses the central server and transmits the receiver's information
The central server retrieves the relay server to which the receiver belongs from the receiver information and returns the relay server information on the receiver side.
The sender's terminal connects to the receiver's relay server with the received information, and transmits the receiver's information.
The step of establishing a connection in a normal case by the receiver's relay server searching for the receiver by the receiver information, checking whether the receiver's terminal is in a connectable state
A step in which the sender and the receiver transmit/receive voice, video, or data through a relay server on the receiver side
Distributed Internet phone system comprising a
The domain server is centralized by registering the subdomain including all or part of each user's phone number, such as 0222811156.telno.net or 022281.telno.net, and the IP address of the relay server to which the user or user group belongs to the domain server. Distributed Internet phone system, characterized in that it serves as a server and enables the recipient's relay server to be recognized from the recipient's phone number
as in clause 1
Distributed Internet telephony system, characterized in that when a single number is commonly used by multiple users, such as a home phone, the relay server on the receiver side checks and connects available users among them
as in clause 1
When one phone number is registered on two or more relay servers, such as when a mobile phone number is registered on a home or company relay server, the relay server list is downloaded from the central server and a connection is attempted through one of the relay servers. Distributed Internet telephony system, characterized in that if connection is not made, a connection is attempted through the next relay server.
as in clause 1
Distributed Internet telephony system, characterized in that in case of a normal connection, the recipient relay server information is registered in the sender relay server or the sender terminal, so that there is no need to access the central server in the next connection.

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