KR20020088463A - Method and System for Calling using Bluetooth Internet Phone - Google Patents

Abstract

PURPOSE: A call system and method using a Bluetooth Internet phone is provided to free speak over a callee telephone located in a Bluetooth network according to a type identical to a conventional telephone call type using the Bluetooth Internet phone mounting a Bluetooth chip. CONSTITUTION: Each of the first and second wireless Bluetooth Internet Phones(110,145) mounts a Bluetooth chip to use a wireless Bluetooth call service, has its ID, enters in a Bluetooth service area, and outputs the ID and a telephone number to the outside. Each of the first and second wired Bluetooth Internet phones(115,155) mounts a Bluetooth chip to use a wired Bluetooth call service, has its ID, and periodically outputs the ID and a telephone number to the outside. Each of the first and second Bluetooth gateways(120,165) connects to the first and second Bluetooth Internet Phones(110,145) and the first and second wired Bluetooth Internet phones(115,155) by wireless for receiving the ID and the telephone number transmitted from the first and second Bluetooth Internet Phones(110,145) and the first and second wired Bluetooth Internet phones(115,155). Each of the first and second Bluetooth gateways(120,165) transmits a communication environment state, an its authorized IP address, and the telephone numbers of Bluetooth Internet phones located in its service area, and continuously notifies the possibility of call to each Bluetooth Internet phone located in the its service area.

Description

Calling system and method using Bluetooth Internet phone {Method and System for Calling using Bluetooth Internet Phone}

The present invention relates to a call system and method using a Bluetooth Internet phone, and more particularly, to a mobile phone or a wired terminal equipped with a Bluetooth chip (hereinafter referred to as a 'Bluetooth Internet phone') within a Bluetooth phone service range. The present invention relates to a call system and method using a Bluetooth Internet phone that can make a call with a called party free of charge and form a call path with the lowest charge when the called party is not within the range of a Bluetooth phone service.

In general, there are already hundreds of millions of wireless communication service subscribers all over the world. With the rapid increase in wireless communication, various services using wireless communication have been developed and spread. Due to the development of computer and communication technology, multimedia information processing can be easily performed, and various applications have been developed using multimedia. Also, with the rapid development of the popularization of the Internet, which connects every corner of the world, the research to use the Internet for long distance calls has been rapidly developed. It is Internet phones that emerged in this trend. Internet phones connect PCs with Internet phone software, speakers, microphones, and soundcards to the Internet, allowing you to talk like a regular phone with a PC owner with the same system. Internet phones have been rapidly spreading around the world since their debut by Israel's Vocaltech in February 1995. The basic principle between the general telephone system and the Internet telephone system is not much different, except that a personal computer is used instead of a telephone, an Internet network rather than a telephone network, and an Internet gateway rather than a telephone company.

In general, Internet telephony is classified into PC-to-PC, PC-to-Phone, Phone-to-PC, and Phone-to-Phone. The most basic form of PC-to-PC is that users use Internet phones. After running the software, press the other party's Internet Protocol (IP) address and the caller and receiver will be connected by the Internet gateway, which acts as a telephone company. . An IP address is similar to a telephone number and is an address registered with an Internet gateway. Here, when the sender speaks, the voice data is compressed and converted into an Internet standard signal, and the converted voice data is transferred to the Internet gateway through the Internet network, and then converted into voice by the other party's PC. In internet telephony, voice codec technology, which compresses and restores voice data as small as possible, is very important. The voice codec technology refers to a technique of binary encoding a voice, compressing the encoded voice data, and transmitting the compressed voice data to restore the voice data to the original voice data and then to decode the encoded voice. Currently, G.723 is used for Internet voice transmission rates of 5.3Kbps and 6.3Kbps, and G.729 for 8Kbps. In addition, in the Internet telephony method, a protocol for effectively transmitting voice data on the Internet is important, and the protocol used in the Internet telephony method is H.323, which is a standard protocol for voice and video communication on a LAN that does not guarantee the quality of service. There are RTP / RTCP protocols provided in packets to improve the sound quality of recovered voice data, and RSVP protocols (Resource Reservation Protocol) which reserves resources such as bandwidths along a path to satisfy a quality of service (QoS) to be provided.

The PC-to-Phone method, which is one step higher than the PC-to-PC method, is configured to communicate with each other by interconnecting the Internet network and the existing telephone network. It is the telephony that enables the PC-to-Phone method. It's a telephony gateway. Telephony gateway is a kind of server program that plays a role of relaying between existing telephone network, PSTN and internet. The gateway firstly generates DTMF signals to make calls to the other party, secondly, to send voice to the phone, and thirdly, to detect the busy signal and to confirm that the other party hangs up. , Hang up the phone.

In addition, by connecting another telephony gateway to the PC-to-Phone method, the phone-to-phone method is enabled.

However, such a conventional internet phone call system has various problems. First, the conventional Internet phone call system allocates a dynamic IP address due to a limited IP address, but there is no problem when making a call request, but there is a problem that a call is difficult because an IP address is not defined when receiving a call request. Second, there is a problem that the interoperability and compatibility between operators is insufficient because the independent system is built for each operator, and the scope of providing Internet phone call service is very limited. Third, in order to use the conventional Internet phone call service, it is inconvenient to press about 20 more numbers than the general telephone. That is, there is a hassle of having to press numbers in order of 7 or 8 digit gateway access number, 10 digit subscriber number, 4 digit password, and called party's telephone number. Fourth, in order to use the conventional Internet phone call service, the caller and the called party must be connected to the Internet, and they must be familiar with computer and network use. Therefore, it is difficult for those who are not familiar with computer and network to use the Internet phone call service. have.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the first object of the present invention using a Bluetooth Internet phone equipped with a Bluetooth chip Bluetooth network in the same manner as the conventional telephone call method To provide a call system and method using a Bluetooth Internet phone that can be called free of charge with a called phone (with a Bluetooth chip) located in.

It is a second object of the present invention to provide a call system and method using a Bluetooth Internet phone that can make a cheap call by forming a call path with the least charge when the called phone leaves the Bluetooth network.

1 is an overall configuration diagram of a call system using a Bluetooth Internet phone according to the present invention,

2 is a flowchart illustrating a service usage registration process of a Bluetooth Internet phone existing in a Bluetooth service area according to the present invention;

3 is a flowchart illustrating a call process using a Bluetooth call service according to the present invention;

4 is a flowchart illustrating a call path forming process of a Bluetooth call service according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

100: call system 110: first wireless Bluetooth Internet phone

115: second wired Bluetooth Internet phone 120: first Bluetooth gateway

125: first local DB130: first Bluetooth server

135: first server DB140: wireless communication network

150: PSTN160: Internet

The present invention for achieving the above object in the call system using a Bluetooth Internet phone, equipped with a Bluetooth chip can use a wireless Bluetooth call service, has its own unique serial number (ID), Bluetooth service area A wireless Bluetooth internet phone which transmits its own serial number and phone number to the outside at the same time as it enters the inside; A wired Bluetooth internet phone equipped with a Bluetooth chip, which can use a wired Bluetooth call service, has its own unique serial number (ID), and periodically transmits its own serial number and telephone number to the outside; Wirelessly connected to the wireless Bluetooth internet phone and the wired Bluetooth internet phone, and receives a unique serial number and phone number of each Bluetooth internet phone from the wireless Bluetooth internet phone and the wired Bluetooth internet phone that enter the Bluetooth service area. A Bluetooth gateway which transmits the environmental status, its own public IP address, and telephone numbers of Bluetooth Internet phones in its service area to the outside, and continuously notifies whether each Bluetooth Internet phone located in its service area is available for call; Interconnected with the Bluetooth gateway, each Bluetooth internet phone including the public IP of the Bluetooth gateway, a serial number (ID) transmitted from each Bluetooth internet phone, the country code and the area code where the Bluetooth gateway is located, and the Bluetooth service. A local database for storing communication environment information in the area; Interconnected with the Bluetooth gateway through the Internet, periodically receives the information of the Bluetooth gateway and the Bluetooth Internet phone existing in the control right of the Bluetooth gateway, and grasping the communication environment information from the Bluetooth gateway within its control right Bluetooth server for transmitting to the Bluetooth gateway; And a server database interconnected with the Bluetooth server, storing the authorized IP of the Bluetooth gateway and the telephone number of each Bluetooth Internet phone currently existing in the control right of the Bluetooth gateway, and extracting and authorizing the corresponding information according to the request of the Bluetooth server. Characterized in that.

In addition, the present invention provides a call method using a Bluetooth Internet phone, the method comprising: registering a Bluetooth Internet phone so that a Bluetooth Internet phone entering a Bluetooth service area can use a Bluetooth call service; If the Bluetooth internet phone is in an active state, notifying the Bluetooth internet phone of possible communication methods according to a communication environment in a Bluetooth service area to which the Bluetooth internet phone belongs; Requesting a call by transmitting a phone number of a called party's Bluetooth Internet phone which is to be called according to a possible communication method; And determining a communication environment of the called party's Bluetooth Internet phone, and forming an optimal call path according to the communication environment, thereby connecting the caller and the called party.

Bluetooth used in the present invention is an international standard technology for near field communication. The data transmission distance that Bluetooth usually uses is about 10m and can be up to 100m, but this consumes a lot of power. The frequency band used uses the Industrial Scientific Medical (ISM) band of 2.4 GHz. The use of high radio frequency enables transmission through non-metallic transmission even if there is an obstacle. The transmission method uses frequency hop spread spectrum and is designed to be less affected by frequency interference and fading. The data rate is about 1 Mbps for synchronous and 721 kbps for asynchronous. In addition, up to seven devices can be connected in a small terminal called a piconet, and 225 devices can be networked through an extension called scatternet. Up to 3 channels of voice can be supported.

Hereinafter, a preferred embodiment of a call system and method using a Bluetooth Internet phone according to the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall configuration diagram of a call system 100 using a Bluetooth Internet phone according to the present invention, the call system 100 is composed of a calling party system and a called party system. This is divided to explain the operation principle of the call system 100, and since the configuration and operation are the same, only the calling party call system will be described.

The first wireless Bluetooth internet phone 110 refers to a mobile terminal equipped with a Bluetooth chip in a general mobile terminal talking through a wireless communication network 140, and the first wired Bluetooth internet phone 115 calls through a PSTN 150. Refers to a phone equipped with a Bluetooth chip in a typical landline phone. The first wireless Bluetooth Internet phone 110 and the first wired Bluetooth Internet phone 115 has its own unique serial number (ID), and enters its own serial number and phone number to the outside at the same time as entering the Bluetooth network Send it out. In order to develop Bluetooth applications using regular phones (ie mobile and landline phones), the chipset and protocol stack with Bluetooth hardware must be equipped first. The configuration of the Bluetooth chipset and protocol stack is not known in detail because it is well known to those skilled in the art. Although FIG. 1 illustrates one first wireless Bluetooth internet phone 110 and one first wired Bluetooth internet phone 115, it is obvious that a plurality of Bluetooth internet phones may be included.

The first Bluetooth gateway 120 is wirelessly connected to the first wireless Bluetooth internet phone 110 and the first wired Bluetooth internet phone 115, and enters the first wireless Bluetooth internet phone 110 within its area. Receives a unique serial number and phone number of each Bluetooth Internet phone sent from the first wired Bluetooth Internet phone 115 to instruct to update the local database 125, the communication environment status, own IP address, Bluetooth phone in the area The phone number and the like are transmitted to the first Bluetooth server 130. It also continuously notifies each Bluetooth internet phone located in its area whether or not a call is possible. In order to provide a stable Bluetooth Internet phone call service, it is preferable to have a fixed public IP to the first Bluetooth gateway 120 and to be always connected to the Internet 160. Here, although software (ie, a Bluetooth driving program) may be installed in a PC to implement a Bluetooth internet phone call service, it is obvious that the software may be implemented in hardware (ie, a Bluetooth chipset, etc.).

The first local DB 125 is interconnected with the first Bluetooth gateway 120, the public IP of the first Bluetooth gateway, a serial number (ID) transmitted from each Bluetooth Internet phone, and the first Bluetooth gateway 120. Phone number of each Bluetooth internet phone including country code (eg, Korea: 82) and area code (eg, Seoul: 02) where the location is located, communication environment information (eg, number of free channels, internet line) within the Bluetooth service area. Information such as available bandwidth). In addition, in order to provide an additional service, an address where the first Bluetooth gateway 120 is located may be selectively stored.

The first Bluetooth server 130 is connected to the first Bluetooth gateway 120 through the Internet 160, the information of the first Bluetooth gateway 120 (for example, public IP) and the first Bluetooth gateway 120 Receive the information of the Bluetooth Internet phone existing in the control right) and periodically update the first server DB 135, and communicate with the incoming Bluetooth Internet phone 145, 155 from the second Bluetooth gateway 165 of the called party. Grasps environmental information (for example, the number of free channels, available bandwidth of the Internet line, call availability, busy information, etc.) and transmits the corresponding information to the first Bluetooth gateway 120 through the Internet 160. Perform. In addition, as the number of subscribers of the Bluetooth call service increases, a plurality of Bluetooth servers may be added, and each Bluetooth server may exchange information with each other through the Internet 160.

The first server DB 135 is interconnected with the first Bluetooth server 130, stores the public IP of the first Bluetooth gateway and the telephone number of each Bluetooth internet phone currently present in the control right of the first Bluetooth gateway. 1 At the request of the Bluetooth server 130, the information is extracted and authorized.

Hereinafter, the operation relationship of the call system and method using the Bluetooth Internet phone according to the present invention will be described in more detail with reference to the accompanying drawings.

2 is a flowchart illustrating a service usage registration process of a Bluetooth Internet phone existing in a Bluetooth service area according to the present invention. It is assumed that a mobile terminal for using the present invention is a wireless Bluetooth Internet phone equipped with a Bluetooth chip.

The Bluetooth internet phone determines whether it has entered the Bluetooth service area (Bluetooth network) (S210). If the Bluetooth internet phone is not within the Bluetooth service area, the Bluetooth internet phone is changed to the inactive state (S220). The mode is changed to the active state (S230). Here, the user may be configured to display or alarm on one side of the terminal display window to easily identify whether the Bluetooth Internet phone is active. For example, when the Bluetooth internet phone enters the Bluetooth service area, the antenna display is displayed on the LCD window of the Bluetooth internet phone or the alarm sound is output twice.If the Bluetooth internet phone leaves the Bluetooth service area, the antenna display is deleted or the alarm is displayed. Output a note once.

At the same time as the Bluetooth Internet phone changes the mode to the active state, the Bluetooth Internet phone transmits its own serial number (ID) to the Bluetooth gateway (S240). Next, the Bluetooth internet phone determines whether there is a transmission request for the telephone number of the Bluetooth internet phone from the Bluetooth gateway (S250), waits if there is no transmission request, and transmits its own telephone number (S260). The Bluetooth gateway receives a unique serial number and a phone number transmitted from each Bluetooth internet phone and updates the local DB to create a list of Bluetooth internet phones existing in its control right (S270). The local DB includes a public IP of the Bluetooth gateway, a serial number (ID) transmitted from each Bluetooth internet phone, a country code (eg, Korea: 82) and a region code (eg, Seoul: 02) where the Bluetooth gateway is located. The phone number of the Bluetooth Internet phone, communication environment information (for example, information on the number of free channels, the available bandwidth of the Internet line, etc.) in the Bluetooth service area are stored. Here, the country code and region code where the public IP and the Bluetooth gateway of the Bluetooth gateway are located are fixed information, and the rest are information updated when there is a Bluetooth Internet phone entered in the service area of the Bluetooth gateway.

The Bluetooth gateway searches for communication environment information in its service area and continuously transmits a call availability to each Bluetooth Internet phone stored in the local DB (S280). The communication environment information includes information on the number of channels that can be communicated and the available bandwidth of the Internet line (for example, 64k), and is always updated by continuously updating the communication environment information in its service area whenever the information is updated. Data should be sent to the Bluetooth internet phone. Therefore, the user of the Bluetooth Internet phone decides whether to perform data communication (e.g., eight channels) or voice communication (e.g., three channels) on the basis of the transmitted communication environment information, It may be determined whether to communicate. In addition, the Bluetooth gateway may store Bluetooth Internet phone information (eg, a phone number including a country code and area code of a Bluetooth Internet phone existing in a Bluetooth service area) and Bluetooth gateway information (eg, a public IP of a Bluetooth gateway). Send to the Bluetooth server (S290). The Bluetooth server receives the transmitted Bluetooth Internet phone information and the Bluetooth gateway information to update the server DB (S295). The Bluetooth server plays a role of relaying between the calling Bluetooth gateway and the called Bluetooth gateway, and updates the public IP of the Bluetooth gateway within its control and the Bluetooth internet phone within the control of the Bluetooth gateway from time to time so that it is always updated. It is desirable to manage to make a call based on. That is, the Bluetooth Internet phone stored in the server DB can use the Bluetooth call service of the present invention if the call channel is free. In addition, when the number of Bluetooth gateways to be managed increases, a Bluetooth server can be added, and each Bluetooth server can be implemented to extend the scope of the present Bluetooth call service by exchanging information with each other by connecting through the Internet.

3 is a flowchart illustrating a call process using a Bluetooth call service according to the present invention, and assumes that at least one wired Bluetooth internet phone exists in a service area of a Bluetooth gateway.

A person who wants to make a call using a Bluetooth internet phone (hereinafter, referred to as a caller) determines whether his or her Bluetooth internet phone enters the Bluetooth service area and is active (S310). As a result of the determination, when the Bluetooth Internet phone is active, the caller reads communication environment information in the Bluetooth service area transmitted from the Bluetooth gateway (S320) to determine what communication methods are possible (S330). Since the communication environment information includes information on the number of channels that can be communicated and the available bandwidth of the Internet line (eg, 64k), the caller can determine a call method based on the information. As a result of the determination of the step (S330), if a landline telephone is available, according to the Bluetooth standard protocol, a call is made with the other party using a landline telephone in the Bluetooth service area (S340), and only a mobile telephone is available (that is, a Bluetooth service is available) If no) or in step S310, when the Bluetooth Internet phone leaves the Bluetooth service area, the mobile phone talks to the other party using a wireless communication network (S350). Transmit to the Bluetooth gateway (S360). Even if the Bluetooth service is available, if the communication channel is not available, the Bluetooth service cannot be used. In other words, the priority of the communication method is determined first in the order of Internet phones, then wired Bluetooth Internet phones (wired phones in the Bluetooth service area), and finally general mobile phones.

The sender of the other party's phone number reads the other party's communication environment information transmitted from the Bluetooth gateway to determine what possible communication methods are possible (S380). Here, the counterpart communication environment information is transmitted from the called gateway to the calling gateway when the calling gateway and the called gateway are connected by the Bluetooth server. The other party's communication environment information includes information on the number of channels that can be called by the called party and the available bandwidth of the Internet line (eg, 64k), so that the caller can determine the call method based on the information. As a result of the determination in step S380, if a landline telephone is available, a call is made with the other party using a landline telephone in a Bluetooth service area according to the Bluetooth standard protocol (S340), and only a mobile telephone is available (that is, a Bluetooth service can be used). If not) and the other party using the wireless communication network (S350), and if the Internet phone is possible to talk to the other party over the Internet for free (S390).

4 is a flowchart illustrating a call path forming process of a Bluetooth call service according to the present invention, and assumes that at least one wired Bluetooth internet phone exists in a service area of a Bluetooth gateway.

First, the calling Bluetooth gateway determines whether there is a call request from the Bluetooth Internet phone (S410), and if there is no call request, the calling Bluetooth gateway transmits its IP and the other party's phone number to the Bluetooth server. The Bluetooth server transmits the IP of the calling Bluetooth gateway and the other party's phone number to the called party's Bluetooth gateway which controls the other party's phone number. At this time, the called party's Bluetooth gateway determines whether the other party's Bluetooth Internet phone requested by the caller exists in its service area (S420). When the other party's Bluetooth internet phone enters the service area of the called party's Bluetooth gateway, it transmits its own serial number (IP) and its phone number to the called party's Bluetooth gateway. It stores information about it. Accordingly, the called party's Bluetooth gateway can identify whether the called party's Bluetooth Internet phone is within its own area.

If the other party's Bluetooth internet phone is in the service area of the called party's Bluetooth gateway, the Bluetooth server transmits the IP of the called party's Bluetooth gateway to the calling party's Bluetooth gateway and relays the connection between the calling party's Bluetooth gateway and the called party's Bluetooth gateway (S430). . The calling party's Bluetooth gateway reads the called party's communication environment information from the called party's Bluetooth gateway (S450) to form an optimal call path, and notifies the calling party's Bluetooth Internet phone of a guide message about the formed call path (S450). In addition, in step S420, even when the other party's Bluetooth internet phone is not present in the service area of the called party's Bluetooth gateway, an optimal call path with the lowest charge is formed, and a guide message for the established call path is sent to the calling party's Bluetooth Internet. Notify by phone. For example, if the other party's Bluetooth internet phone is in the service area of the called party's Bluetooth gateway but there is no space in the communication channel, the call path between the calling Bluetooth internet phone and the wired Bluetooth internet phone in the service area of the called party's Bluetooth gateway is established. Form. In addition, when the counterpart Bluetooth internet phone leaves the service area, a call path between the calling party wired Bluetooth internet phone and the counterpart Bluetooth internet phone with less charge is formed.

When the call path is formed, the calling party's Bluetooth gateway determines whether the calling party and the other party are connected (S460), and when the caller is connected, the calling party talks with the other party (S470). If it is not connected, it determines whether the other party is busy (S480), if it is busy, transmits a busy signal (S490), and if not, notifies a guide message on why not connected (for example, power off). S495), all processing ends.

According to the present invention, when the Bluetooth gateway information including the sender's Bluetooth gateway is transmitted to the called party's Bluetooth gateway, the caller's address tracking system, which allows the called party to know the sender's address, provides the Bluetooth gateway information including the address of the calling Bluetooth gateway. When sending to the called party's Bluetooth gateway, a location tracking system that can identify the specific location in the building by the caller's phone number (especially the mobile phone number), installs two Bluetooth gateways, and the wireless Bluetooth internet phone passes through the first Bluetooth gateway. After passing through the 2nd Bluetooth gateway, the attendance process is processed, and after passing through the 2nd Bluetooth gateway, the attendance management system that processes the leave of work is processed. Security system that can know information about Bluetooth internet phone that existed in the area by analyzing the log of Bluetooth gateway after installing it, and electronic money system that automatically charge subway fee, theater fee etc. to users with Bluetooth internet phone. It can be applied to the back.

The above description is only for explaining one embodiment, and the present invention is not limited to the above-described embodiment and can be variously changed within the scope of the appended claims. For example, the shape and structure of each component specifically shown in the embodiments of the present invention may be modified.

As described above, according to the call system and method using a Bluetooth Internet phone according to the present invention, a called telephone (Bluetooth chip) located in a Bluetooth network in the same manner as a conventional telephone call using a Bluetooth Internet phone equipped with a Bluetooth chip. Equipped with a free call) is effective.

In addition, when the called phone is in the Bluetooth network but there is no room in the communication channel or the called phone is out of the Bluetooth network, there is an effect of providing a Bluetooth call service to make a cheap call by forming the lowest charge path.

Claims (7)

In a call system using a Bluetooth Internet phone, Equipped with a Bluetooth chip, you can use the wireless Bluetooth call service, have your own unique serial number (ID), and send your own serial number and phone number to the outside as soon as you enter the Bluetooth service area. pawn; A wired Bluetooth internet phone equipped with a Bluetooth chip, which can use a wired Bluetooth call service, has its own unique serial number (ID), and periodically transmits its own serial number and telephone number to the outside; Wirelessly connected to the wireless Bluetooth Internet phone and the wired Bluetooth Internet phone, and receives a unique serial number and phone number of each Bluetooth Internet phone from the wireless Bluetooth Internet phone and the wired Bluetooth Internet phone entered into the Bluetooth service area, A Bluetooth gateway that transmits a communication environment state, its own public IP address, and telephone numbers of Bluetooth Internet phones in its service area to the outside, and continuously notifies whether each Bluetooth Internet phone located in its service area is available for call; A telephone of each Bluetooth internet phone interconnected with the Bluetooth gateway and including a public IP of the Bluetooth gateway, a serial number (ID) transmitted from each of the Bluetooth internet phones, a country code and a region code where the Bluetooth gateway is located. A local database storing communication number information in the Bluetooth service area; Periodically connected to the Bluetooth gateway via the Internet, periodically receiving information of the Bluetooth gateway and information of the Bluetooth Internet phone within the control right of the Bluetooth gateway, and communicating environment information from the Bluetooth gateway within its own control right. Bluetooth server for identifying and transmitting the information to the corresponding Bluetooth gateway; And A server which is connected to the Bluetooth server and stores the authorized IP of the Bluetooth gateway and the telephone number of each Bluetooth Internet phone currently existing in the control right of the Bluetooth gateway, and extracts and authorizes the corresponding information according to the request of the Bluetooth server. Call system using a Bluetooth Internet phone, comprising a database. According to claim 1, The Bluetooth gateway is equipped with a Bluetooth driving program for performing all operations for providing a Bluetooth call service, has a fixed public IP to provide a stable Bluetooth call service, and always connected to the Internet Call system using a Bluetooth Internet phone, characterized in that. According to claim 1, wherein the number of Bluetooth gateways and Bluetooth servers are expanded in accordance with a range of control rights, each connection of the Bluetooth gateway is controlled by the Bluetooth server, each of the Bluetooth server is interconnected via the Internet Call system using a Bluetooth Internet phone, characterized in that for exchanging information. In the call method using a Bluetooth Internet phone, (a) registering the Bluetooth internet phone so that the Bluetooth internet phone entering the Bluetooth service area can use the Bluetooth call service; (b) if the Bluetooth internet phone is in an active state, notifying the Bluetooth internet phone of possible communication methods according to a communication environment in the Bluetooth service area to which the Bluetooth internet phone belongs; (c) requesting a call by transmitting a phone number of the called party's Bluetooth Internet phone to which the call is desired according to the possible communication method of step (b); And (d) grasping the communication environment of the called party's Bluetooth Internet phone, and forming an optimal call path according to the communication environment, thereby connecting the caller and the called party. The method of claim 4, wherein step (a) (a1) changing the mode of the Bluetooth Internet phone to an active state when the Bluetooth Internet phone enters the Bluetooth service area, and changing the mode to the inactive state of the Bluetooth Internet phone when leaving the Bluetooth service area; (a2) if the Bluetooth internet phone is in an active state, transmitting a unique serial number and its own phone number of the Bluetooth internet phone to a Bluetooth gateway; (a3) storing the information of the Bluetooth internet phone transmitted from the Bluetooth internet phone, and transmitting communication environment information in the Bluetooth service area to the Bluetooth internet phone; (a4) transmitting the Bluetooth internet phone information and the Bluetooth gateway information to a Bluetooth server; And (a5) storing the transmitted information in a server database, and registering the Bluetooth Internet. The method of claim 4, wherein step (d) (d1) when a call request signal is input from the calling Bluetooth Internet phone, determining whether the calling Bluetooth Internet phone exists in the called Bluetooth service area; (d2) If it exists in the called party's Bluetooth service area in step (d1), the Bluetooth server connects the calling party's Bluetooth gateway and the called party's Bluetooth gateway, and the calling party's Bluetooth gateway leads the called party's communication environment from the called party's Bluetooth gateway. Doing; (d3) forming an optimal call path according to the called party communication environment, and connecting the calling Bluetooth Internet phone and the called Bluetooth Internet phone to the formed call path. Call method using. The method of claim 4 or 6, wherein the call is determined in the order of an Internet phone, then a wired Bluetooth Internet phone, and finally a general mobile phone.