JP2003134172A - Ip telephone service system, ip telephone set and service terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient service capable of answering an IP address related to an optional telephone number in response to the inquiry of the telephone number. SOLUTION: When a retrieval request for the IP address with a calling party telephone number as a clue is issued from an IP telephone set 1 on the Internet 3, a service server 4 retrieves the IP address related to the telephone number, (1) returns the IP address to the IP telephone set of a request origin in the case that the IP address is a hit and (2) returns prescribed information indicating that the IP address is not registered in the case that it is not a hit. The IP telephone set 1 performs IP communication with a calling party telephone set through the Internet 3 by using the IP address in the case of (1) and performs normal voice call with the calling party telephone set through a public telephone line network 2 in the case of (2).

Description

Detailed Description of the Invention

[0001]

The present invention relates to an IP (Internet Protocol) telephone service system, an IP telephone,
And a service terminal device. More specifically, the present invention relates to an IP telephone service system that supports the use of IP telephones on the Internet network, a service terminal device for the IP telephone service system, and an IP telephone combined subscriber telephone having the service terminal function.

[0002]

2. Description of the Related Art Today, VoIP (Voice over)
TCP / IP using a technique called IP) (a technique of converting a voice signal into a digital signal to form an IP packet).
A telephone terminal capable of mutual voice communication via an IP (Transmission Control Protocol / Internet Protocol) compatible network,
The so-called "IP telephone" is receiving attention.

Since the IP telephone can use a TCP / IP compatible network, for example, a LAN (local area network) or a WAN (wide area network), the communication cost of which is much lower than that of an existing public telephone line, There is an economic merit in that the communication cost can be suppressed, and an example of its actual use can be found, for example, for business communication between head offices of a company or the like. However, its use is still limited to a part of the range (such as inside LAN or WAN), and it is difficult to say that it is widely used including private use for homes.

In order to promote the spread of IP telephones in homes and the like, it is inevitably required to be able to connect to the Internet, but in order to connect to the Internet, each IP telephone is specified by TCP / IP. This is because the "global IP address" must be acquired and assigned to each IP telephone.

The IP address is InterNIC or JP
NIC (Japan Network Information)
There are two types: a "global IP address" that is strictly managed by an organization such as a user's Internet service center) and a "private IP address" that is permitted to be used in a closed network environment (LAN, WAN, etc.).
In order to connect to the Internet, as described above, it is necessary to use a "global IP address" that is unique (unique) on a global scale. Throughout this specification, when simply referring to “IP address”,
This global IP address is meant.

[0006]

By the way, when using an IP telephone on the Internet, the telephone cannot be called unless the IP address of the called telephone is known. It is necessary to inform the calling side (calling side telephone side) of the IP address.

However, for a general user who has no knowledge of IP, even if the other party says, "I want you to give me the IP address", I wonder what information to convey, and if I know what information to convey. However, the IP address notation format is familiar like a telephone number (for example,
Since there is no telephone number in Tokyo starting with "03", etc., there was a problem that transmission errors (wrong words or mistakes in hearing) could not be denied and IP addresses could not be notified with sufficient reliability.

Therefore, the problem to be solved by the present invention is to hold a telephone number and an IP address in association with each other, and to respond to an inquiry of an arbitrary telephone number, to reply the IP address associated with the telephone number. By constructing a convenient service on the Internet, we attempted to solve the above problems when using an IP telephone on the Internet, and made it possible to notify the IP address of the destination IP telephone with sufficient reliability. It is to provide an IP telephone service system, a service terminal device thereof, and an IP telephone combined subscriber telephone having the service terminal function.

[0009]

An IP telephone service system according to a first aspect of the present invention is an IP telephone service system applied to an IP telephone capable of making an IP call through a TCP / IP compatible network. The IP telephone is connectable to a public telephone line network, and a telephone number and identification information in the network, which are identification information in the public telephone line network of each of the IP telephones, are provided on the network. And a holding means for holding the IP address in association with the IP address and responding to an inquiry from an arbitrary IP telephone at the time of the inquiry.
Retrieval means for retrieving the holding means based on the telephone number of the destination IP telephone notified from the telephone, and if the IP address of the destination IP telephone is found as a result of the retrieval by the retrieval means, the IP address is requested. Original IP
On the other hand, the service server is provided with an information return means for returning the information to the telephone and returning predetermined information indicating that the IP address is not registered when the information is not found.

According to the present invention, the IP telephone on the network sends to the service server on the network,
When an IP address search request is issued using the telephone number of the called telephone as a clue, the service server searches the IP address associated with the telephone number. When the IP address hits, the service server sends the request to the IP telephone,
While the IP address is returned, if there is no hit, predetermined information indicating that the IP address is not registered is returned. Therefore, when the IP address is returned, the IP phone can use the IP address to make an IP call with the called phone via the network, and the predetermined information indicating that the IP address has not been registered. When is returned, normal voice communication with the called telephone becomes possible via the public telephone line network. As a result, the artificial notification of the IP address becomes unnecessary, eliminating various inconveniences (listening mistakes, etc.) associated with the artificial notification.
The reliability of address notification can be improved.

The IP telephone according to the invention of claim 2 is
A public telephone line communication unit capable of performing voice communication with another telephone via the public telephone line network, and TCP / I
A TCP / IP communication unit capable of performing data communication with other telephones via a P-compatible network.
And a control unit for selectively using the public telephone line communication unit and the TCP / IP communication unit to control voice communication or data communication with the telephone of the other party, and the control unit is When calling a telephone, transmitting means for transmitting a telephone number, which is identification information in the public telephone line network of the telephone, to a predetermined service server provided on the network, and returning from the service server in response to the transmission. Receiving means for receiving the information, and if the information received by the receiving means is an IP address, the I
While performing data communication via the TCP / IP communication unit with the P address as the destination, when the information is predetermined information indicating that the IP address is not registered, the telephone number is used as the destination for the public telephone line. And a communication means for performing voice communication via the communication unit.

According to the present invention, when the IP address is returned from the service server, the IP address can be used to make an IP call with the called telephone via the network, and the IP address is sent from the service server. When the predetermined information indicating non-registration is returned, normal voice communication with the called telephone can be performed via the public telephone line network. Therefore, it is possible to provide a suitable IP telephone by applying it to the above IP telephone service system.

A service terminal device according to a third aspect of the present invention comprises a public telephone line communication section capable of performing voice communication with another telephone via a public telephone line network, and a TC.
A TCP / IP communication unit capable of performing data communication with other telephones via a P / IP compatible network, and a public telephone line communication unit and a TCP / IP communication unit are selectively selected. A control unit for controlling voice communication or data communication with the other party's telephone set, and a connection port for connecting a telephone cable from the subscriber telephone set, and the control unit is provided from the subscriber telephone set. When calling another telephone, based on a dial signal output from the subscriber telephone, telephone number extracting means for extracting the telephone number which is identification information of the other telephone in the public telephone line network, and the telephone number extracting means for extracting the telephone number Sending means for sending a telephone number to a predetermined service server provided on the network, and information returned from the service server in response to the sending. When the receiving means that receives the information and the information received by the receiving means are IP addresses, the IP address is used as a destination between the subscriber telephone and the other telephone via the TCP / IP communication unit. When data communication is permitted, but the same information is predetermined information indicating that the IP address has not been registered, the telephone number is addressed to the subscriber telephone and the other telephone via the public telephone line communication unit. And a communication unit that allows voice communication between the two.

According to the present invention, when a telephone is connected to the device and another telephone is called from the telephone, an inquiry about the IP address of the other telephone is made to the service server, and the IP address is returned from the service server. When this is done, an IP call can be made with the called telephone via the network using that IP address, and when the service server returns the predetermined information indicating that the IP address has not been registered, A normal voice call can be made with the called telephone via the public telephone network. Therefore, it becomes possible to make an IP call with another telephone using the existing telephone, and it is possible to provide a service terminal device suitable for application to the IP telephone service system.

An IP telephone service system according to a fourth aspect of the present invention is the IP telephone service system according to the first aspect, wherein the service server further receives the telephone number and IP address of the telephone from the IP telephone on the network. It is characterized by having a receiving means for receiving the registration request and an information registration means for newly creating the associated information in the holding means at the time of the reception.

According to the present invention, the telephone number of the IP telephone and the I
It is possible to freely register the P address and the service server. Therefore, it becomes possible to make an IP call with an unspecified large number of parties addressed to the telephone number registered in the service server.

An IP telephone service system according to a fifth aspect of the present invention is the IP telephone service system according to the fourth aspect, wherein the acceptance means uses the caller number notification service to register via the public telephone line network. It is characterized in that it receives a target telephone number and an IP address to be registered via the network.

According to the present invention, the telephone number of the IP telephone and the I
It is possible to freely register the P address and the service server. Therefore, it becomes possible to make an IP call with an unspecified large number of parties addressed to the telephone number registered in the service server.

According to a sixth aspect of the present invention, in the IP telephone service system according to the fourth aspect, the receiving means receives a telephone number and an IP address to be registered via the network. And

In the present invention, the telephone number of the IP telephone and the I
It is possible to freely register the P address and the service server. Therefore, it becomes possible to make an IP call with an unspecified large number of parties addressed to the telephone number registered in the service server.

An IP telephone service system according to a seventh aspect of the present invention is the IP telephone service system according to the fourth aspect, wherein the accepting means sends a registration screen in a web document format to a registration request source terminal on the network. The registration target telephone number and IP address entered in the registration screen are received via the network.

According to the present invention, the telephone number of the IP telephone and the I
It is possible to freely register the P address with the service server, and it becomes possible to make an IP call with a large number of unspecified parties addressed to the telephone number registered in the service server. Since it can be used, registration can be performed, for example, from a personal computer, and variations in the registration procedure can be increased.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the identification of various details in the following description or examples and examples of numerical values, character strings, and other symbols are merely references for clarifying the idea of the present invention, and may be used by all or a part of them. Obviously, the inventive idea is not limited.
In addition, a detailed description of well-known methods, well-known procedures, well-known architectures, well-known circuit configurations, and the like (hereinafter referred to as “well-known matters”) will be omitted, but this is also for the sake of brevity and these well-known matters. It does not intentionally exclude all or part of the matter. Such a well-known matter can be known to those skilled in the art at the time of filing the present invention, and is naturally included in the following description.

The table of contents of the embodiment is as follows. 1. IP telephone service system 1-1. Main components of IP telephone service system 1-1-1. Configuration of Service Server 4-1-1-1. IP address notification service 1-1-2. Configuration of IP telephone 1 (IP telephone combined type telephone) 1-1-2-1. Voice processing unit 61 1-1-2-2. Speaker 62 and loudspeaker 63 1-1-2-3. Operation control unit 64 1-1-2-4. Display control unit 65 1-1-2-5. Central control unit 66 1-1-2-6. Public telephone line communication unit 67 1-1-2-7. Internet communication unit 68 1-1-3. Operation of IP telephone 1 (IP telephone combined type telephone) 1-1-3-1. Initial registration operation 1-1-3-2. Calling operation 1-1-3-3. Standby operation 1-2. Description of operation of IP telephone service system 1-3. IP address change event processing operation 1-4. 1. Telephone number / IP address registration method to the service server 2. Other Embodiments (Using a Service Terminal Device) 2-1. Configuration of service terminal device 2-1-1. Signal converter 85 2-1-2. Control unit 86 2-1-3. Public telephone line communication unit 88 2-1-4. Internet communication unit 87 2-1-5. Power supply unit 89 2-2. Operational effects of other embodiments

1. IP Telephone Service System First, the IP telephone service system in the present embodiment will be described. FIG. 1 is a conceptual configuration diagram of an IP telephone service system according to the present embodiment. In this figure,
Reference numeral 1 denotes an IP telephone / combination type subscriber telephone (hereinafter abbreviated as "IP telephone") capable of making mutual calls by selectively utilizing the public telephone line network 2 and the internet network 3. Although the configuration and operation of the IP telephone 1 will be described in detail later, the IP telephone 1 is essentially an arbitrary telephone (I shown in the figure).
One of the P telephones 1 or a subscriber telephone (not shown) connected to the public telephone line network 2; hereinafter, these are collectively referred to as "destination telephone". ) As a destination, a server (hereinafter referred to as “service server”) 4 connected to the Internet network 3 is accessed and the telephone number of the destination telephone (for example, “03-333-444”).
4 ") to the service server 4 and the service server 4
From the IP address registered in advance in association with the telephone number (for example, “255.255.
*. 2 ”; however, if 0 <*> 255, and so on, is returned, the IP address (“ 255.255.
*. 2 ") is used to make an IP call with the destination telephone (in this case, the IP telephone 1 having the IP address) via the Internet network 3, while the service server 4 returns the IP address. Without the predetermined information (I
When the predetermined information indicating that the P address is not registered is returned, the destination telephone (in this case, the telephone) is sent via the public telephone network 2 using the telephone number ("03-333-4444"). It becomes a subscriber telephone with a number.) It is to make a normal voice call with.

1-1. Main Components of IP Telephone Service System Details of each of the main components of the IP telephone service system according to the present embodiment will be described below. 1-1-1. Configuration of Service Server 4 FIG. 2A is a diagram showing the hardware configuration of the service server 4. The service server 4 is, for example, but not limited to, a microcomputer unit (hereinafter abbreviated as “CPU”) 5, a volatile information storage unit (hereinafter “RAM”) when it is configured by a personal computer having a DOS / V architecture. 6, disk controller 7, disk device 8, display controller 9, display device 10, keyboard controller 1
1, a keyboard device 12, a pointing device device 13, a TCP / IP communication control device 14, a public telephone line communication control device 15, a main bus 16, a bus interface 17, an internal bus 18, and the like.

The service server 4 loads software resources such as an operating system stored in advance in the disk device 8 into the RAM 6 and causes the CPU 5 to execute the software resources so that the Internet network 3 is established via the TCP / IP communication control device 14. It is possible to always connect, and in this constant connection environment, an "IP address notification service" described later can be provided on the Internet network 3.

Further, the service server 4 displays various user interface screens for managing such services on the display device 10, and operates the keyboard device 12 and the pointing device device 13 on the interface screen to perform user management. And data management can be performed. Further, the service server 4 can accept an access via the public telephone line network 2 via the public telephone line communication control device 15, and by this access service (so-called RAS; remote access service), IP
Initial registration processing (details will be described later) from the telephone 1 can be performed.

FIG. 2B is a conceptual diagram of the "telephone number / IP address correspondence table" essential for the IP address notification service described later. The telephone number / IP address correspondence table 19 is, for example, a database table stored in the disk device 8, and each data record (hereinafter, also simply referred to as a record) has at least a telephone number field 19a and an IP address field 19.
b. In the illustrated example, "03-1111-" is stored in the telephone number field 19a of one record.
2222 "is stored, and" 255.255.255 "is stored in the IP address field 19b of the same record. *. 1 ”is stored and the telephone number field 19 of the second record is stored.
“03-3333-4444” is stored in a, and “255.25” is stored in the IP address field 19b of the same record.
5. *. 2 "is stored. These pieces of information are shown in FIG.
These are unique information of each IP telephone 1. In addition,
The method of registering these pieces of information will be described later.

FIG. 3A is a diagram showing a simplified hierarchical model of the hardware resources and software resources of the service server 4. This hierarchical model 20 is
(Open System Interconnect
Abbreviation for ion. The open system interconnection model is modeled after the hardware resource layer 21, the operating system layer 22 and the application layer 23.
It has a laminated structure.

The hardware resource layer 21 includes the CPU 5
Hardware resource 24 such as (configuration of FIG. 2A)
And is indirectly available from the application layer 23 via the operating system 25 included in the operating system layer 22 above. The application layer 23 includes at least a database 26, which is a main part of the IP telephone service system according to the present embodiment, and a predetermined application program 27 in which processing rules and a user interface for the database 26 are programmed. (Operating system 25,
The IP telephone service system according to the present embodiment is realized by organically connecting the database 26 and the application program 27) with the hardware resource 24.

FIG. 3B shows the IP in this embodiment.
It is a conceptual diagram of a telephone service system. In this figure, the user interface unit 28 and the processing rule unit 29 are the application program 2 of FIG.
7 and the database unit 30 corresponds to the database 26 of FIG.

The user interface section 28 includes display resources (that is, the display controller 9 and the display device 1) among the hardware resources 24.
0) various graphical user interfaces (G
(UI) screen and outputs information between the IP telephone 1 via the Internet network 3 or the public telephone line network 2 via the TCP / IP communication control device 14 or the public telephone line communication control device 15. It is for communication.
The processing rule unit 29 generates various GUI screens by an event driven (event activation) method, and
The information input on the screen is taken in, the display information on the GUI screen is processed and generated, and the information is printed out as necessary, and further, the IP telephone 1 is also transmitted via the interface unit 28. The information associated with the phone number, or if the information is a phone number, the I associated with that phone number.
P address is the telephone number stored in the disk device 8 /
Processing such as taking out from the IP address correspondence table 19 and sending to the IP telephone 1 is executed.

The database unit 30 is for accumulating and storing various electronic data (at least the above "telephone number / IP address correspondence table 19") necessary for the operation of the IP telephone service system in the present embodiment. , A database file designed by using general-purpose database program software (also called a database management system (DBMS)). The DBMS is generally classified into a relational type and other simple types (card type, etc.).
In order to realize the IP telephone service system in the present embodiment, any of these types may be used in principle, but the relational type is used in that the information in the database can be normalized to resolve the contradiction of information. Needless to say, the use of is desirable.

Further, the DBMS is of a type (hereinafter referred to as "processing") in which each unit of FIG. 2B, that is, the user interface unit 28, the processing rule unit 29, and the database unit 30 are stored in one file and can be packaged. "Rule implementation type") and the database unit 30 are designed, and the user interface unit 28 and the processing rule unit 29 are used for other development tools (for example, "VisualBasic" and "C ++" of Microsoft Corporation; There are two types (hereinafter referred to as “processing rule exterior type”) designed with a registered trademark), but any type of DBMS may be used.

1-1-1-1. IP Address Notification Service Next, the “IP address notification service”, which is a characteristic operation of the service server 4, will be described. FIG. 4 is a diagram showing a conceptual flowchart of the processing rule unit 29. In this figure, the processing rule unit 29 indicates that TCP / I
The downlink channel of the P communication control unit 14 is monitored (step S01), and when an access from any IP telephone 1 connected to the Internet network 3 is detected, the access is accepted and transmitted from the IP telephone 1. "Telephone number of the other party" (for example, "03-3333-4"
444 ") is received (step S02).
Next, the telephone number stored in the database unit 30 /
The IP address correspondence table 19 is searched (step S0
3), the telephone number ("03-3333-4444")
The presence or absence of the record is determined (step S04). If the corresponding record exists, the I of that record
Contents of the P address field 19b (in this case, "25
5.255. *. 2 "; refer to FIG. 2B) is returned to the IP telephone 1 that is the access source (step S05). On the other hand, if the corresponding record does not exist, predetermined information indicating that there is no record (for example, the character string" NA ″) is returned to the IP telephone 1 that is the access source (step S06).

Therefore, according to this IP address notification service, any I connected to the Internet network 3
When there is an inquiry from the P telephone 1 (when the telephone number of the other party is transmitted), the IP address associated with the telephone number is taken out from the telephone number / IP address table 19 and the IP telephone 1 of the calling party is called. Can be returned to the IP address of the other party.
The advantage is that it is not necessary to write down the address and remember it, or to confirm it with the other party.

As a result, there is a problem in using the IP telephone 1 on the Internet network 3, that is, for a general user who does not have knowledge of IP, even if the other party says, "I want you to give me the IP address", I don't know what information to convey, even if I know what information to convey,
Since the IP address notation format is unfamiliar like a telephone number (for example, a telephone number in Tokyo starts with "03", etc.), it cannot be denied transmission mistakes (wrong words or listening mistakes), and the IP is sufficiently reliable. It is possible to solve the problem that the address cannot be notified, and to realize a highly convenient IP phone service system that can notify the user of the IP address of the destination IP phone with sufficient reliability.

1-1-2. Configuration of IP Telephone 1 (IP Telephone Combined Type Telephone) FIG. 5 is an external view (a) of an example of the IP telephone 1 and a partial rear view (b) thereof. The IP telephone 1 has a number from "0" to "9" on the surface (the upper surface in the drawing, but not limited to this, any surface that is easy to see and operate) of the body 41 that is beautifully designed (designed). Keys, an asterisk (“*”) key, a sharp (“#”) key, etc., a dial key group 42, a command key group 43, which includes various command keys, cursor keys, etc., and a flat type using a liquid crystal display or the like. The display device 44 and the speaker loudspeaker hole 45 are provided, and the rear surface portion 41 of the body 41 is further provided.
a, a PHONE connection port 48 for connecting the curl cord 47 of the handset 46, a LINE connection port 50 for connecting the public telephone line cable 49, and an INTERNET connection port 5 for connecting the Internet cable 51.
2, DC power cable 54 from the AC power adapter 53
Is provided with a power supply connector 55.

FIG. 6 is an electrical block diagram of the IP telephone 1. In the figure, inside the body 41, a voice processing unit 61, a speaker 62, a loudspeaker 63, and an operation control unit 6 are provided.
4, a display control unit 65, a central control unit 66, a public telephone line communication unit 67, an Internet communication unit 68, and the like are mounted, and these units have the following functions.

1-1-2-1. Voice processing unit 61 The voice processing unit 61 converts the transmission signal from the handset 46 into a signal format that can be processed by the central processing unit 36, or receives the reception signal from the central processing unit 36 (transmitted from the telephone of the other party). The received signal) is converted into a signal format reproducible by the handset 46 and output to the handset 46.

1-1-2-2. Speaker 62 and Loudspeaker 63 The loudspeaker 63 outputs a calling signal output from the central processing unit 36 (a calling signal from the telephone of the other party, that is,
Incoming signal) and DTMF (Dial ToneMulti)
The frequency signal is converted into a predetermined signal format and amplified, and the speaker 62 is driven to output a loud sound at a predetermined volume. Also, the speaker 62 and the loudspeaker 6
3 may be used instead of the speaker for transmission of the handset 46 when the exemplified IP telephone 1 has the “speakerphone function”. In this case, a microphone (not shown) is naturally required.

1-1-2-3. Operation Control Unit 64 The operation control unit 64 takes in key operation signals from the dial key group 42 and the command key group 43 provided on the front surface of the body 41, and outputs the key operation signals to the central processing unit 3.
When the dial key group 42 and the command key group 43 include a light-emitting type key button, the central processing unit 36 converts the signal format into a signal format that can be processed in 6 and outputs it to the central processing unit 36. The corresponding key button lamp (not shown) according to the lamp lighting or lighting color change signal from
Is turned on or its lighting color is changed.

1-1-2-4. Display Control Unit 65 The display control unit 65 is a flat panel display device 4 provided on the front surface of the body 41 in accordance with a display signal from the central processing unit 36.
4 is used to control the character string display or the graphic display, and when the flat panel display device 44 is provided with a touch panel, the touch coordinates of the touch panel are detected and the coordinate signal is detected by the central processing unit 36. Is output to.

1-1-2-5. Central control unit 66 The central processing unit 36, although not particularly limited, centrally controls the entire operation of the IP telephone 1 by a micro program control system, and corresponds to the "control unit" described in the gist of the invention. .

FIG. 7 is a block diagram of the central controller 66. The central control unit 66 uses the input / output interface 6
6a, microcomputer unit (hereinafter "CPU")
66b, a volatile information storage unit (hereinafter abbreviated as “RAM”) 66c, a read-only nonvolatile information storage unit (hereinafter abbreviated as “ROM”) 66d, and an electrically rewritable nonvolatile information storage unit (hereinafter Abbreviated as "EEPROM") 6
6e and the like.

In the input / output interface 66a, a transmission signal from the voice processing section 61, a key button signal from the operation control section 64, and the touch coordinates of the touch panel from the display control section 65 when the flat panel display device 44 has a touch panel. When a signal or the like is input, the public telephone line communication unit 67
A call signal and a call signal from the Internet communication unit 68 or a downlink channel signal from the service server 4 are input. Also, the input / output interface 66a
From the received signal to the voice processing unit 61, the operation control unit 64
Key button lighting (or lighting color change) signal, a display signal to the display control unit 65, and the like, and a call signal and a call signal or service to the public telephone line communication unit 67 and the Internet communication unit 68. Upstream channel signals and the like to the server 4 are output.

The CPU 66b has the functions of "transmitting means", "receiving means", and "communication means" described in the gist of the invention, and loads the control program previously stored in the ROM 66d into the RAM 66c and By executing the control program, each unit (the voice processing unit 61, the operation control unit 6) is input through the input / output interface 66a.
4, the display control unit 65, the public telephone line communication unit 67, the Internet communication unit 68) while taking in the required data, various arithmetic processing necessary for controlling the overall operation of the IP telephone 1 is performed, and the calculation result is obtained. Various control data obtained is sent to each section (voice processing section 61, loudspeaking section 63, operation control section 64, display control section 65, public telephone line communication section 67, Internet communication section 68) via the input / output interface 66a. It is what is output.

The central control unit 66 is necessary for centrally controlling the entire operation of the IP telephone 1 by organically combining hardware resources such as the CPU 66b and software resources such as a control program stored in the ROM 66d. It realizes a predetermined control processing function.

The RAM 66c is used as a work area for the CPU 66b, and is the ROM 66d.
Stores the control program and various fixed data necessary for executing the program in advance. The EEPROM 66e stores rewritable user-specific variable data including its own IP address. This IP address is an IP address statically assigned by the Internet service provider (ISP) or DHCP (DynamicHos).
t Configuration Protocol)
Is an IP address dynamically assigned by. In addition, the variable data unique to the user may include, for example, the telephone number of the own device, telephone number (abbreviated number) data of the other party, incoming call history, outgoing call history, and the like.

1-1-2-6. Public telephone line communication unit 6
7. The public telephone line communication unit 67 calls an arbitrary telephone number via the public telephone line network 2, establishes a call with a telephone having the telephone number, and then makes a voice call with the telephone. (Voice call by analog signal, ISDN; integrated service
In the case of digital network lines, it is possible to make voice calls using digital signals.
When a call is made from the telephone of the other party, the call can be established in response to the call. The public telephone line communication unit 67 calls the RAS number of the service server 4 and uses the public telephone line network 2 to communicate the public telephone line of the service server 4 when the IP telephone 1 is used for the first time. By connecting to the control unit 15 and using the caller telephone number notification service, the telephone number of the IP telephone 1 is notified to the service server 4 so that initial registration can be performed.

1-1-2-7. Internet Communication Unit 68 The Internet communication unit 68 corresponds to the “TCP / IP communication unit” described in the gist of the invention, and can perform data communication via the Internet network 3. For details, please refer to packet communication (however, TCP
/ IP packet) data communication, and the destination address of the packet is the I
Set the P address, set the IP address of the device (stored in the EEPROM 66e) as the source address of the packet, and perform bidirectional data communication between the terminals connected to the Internet network 3. Is something that can be done. Also, this Internet communication unit 68
When calling an arbitrary telephone number (a telephone number other than the RAS number of the service server 4), the TCP / IP communication control unit 14 of the service server 4 via the Internet network 3
Connected to the service server 4 and informs the service server 4 of the above-mentioned arbitrary telephone number, and returns its response (the IP associated with the arbitrary telephone number).
The address or predetermined information indicating that there is no corresponding IP address) can be received from the service server 4.

1-1-3. Operation of IP phone 1-1-3-1. Initial Registration Operation FIG. 8 is a flowchart showing an initial registration program executed by the CPU 66b of the IP telephone 1. This program is used when the IP phone 1 is used for the first time, or when the contracted ISP is replaced, or when the ISP
This is executed when the IP address assigned by (1) is changed (when an update event occurs due to the lease expiration of the dynamic IP address). When you start this program,
First, connect to the public telephone line network 2 (step S11),
Pre-set phone number (service server 4
RAS number, that is, the public telephone line communication control unit 1
5 telephone number) is called (step S12). next,
Service server 4 (the public telephone line communication controller 15)
Is waited for (step S13), and if there is a response, the public telephone line network 2 is disconnected and connected to the internet network 3 (steps S14, S15). Then, the service server 4 is accessed via the Internet network 3, and the service server 4 is notified of the IP address of the device itself (IP address stored in the EEPROM 66e) (step S16).

Here, the "caller number notification service" is
It is a known service that automatically informs the called party of the caller's telephone number. Assuming that the user of the IP telephone 1 has a contract for this service, the telephone number of the IP telephone 1 has been notified to the service server 4 at the time of step S13. Therefore, the service server 4
Stores this telephone number and the IP address notified in step S16 in one record, and stores the telephone number / IP
It can be newly registered in the address table 19. In order to prevent multiple registration of the same telephone number, when adding a new record to the telephone number / IP address table 19, it is checked whether there is a record having the same telephone number in the registered records. If it exists, it is preferable to reject new registration or rewrite the IP address of the existing record.

According to this initial registration program, when the IP telephone 1 is used for the first time, or the ISP of the contractor
Or when the I assigned by the ISP
When the P address is changed, the telephone number and IP address of the own device (IP telephone 1) are notified to the service server 4, and a new record is added to the telephone number / IP address correspondence table 19 in the service server 4. Then, the notification information (telephone number and IP address of the own device) can be registered. Therefore, information (telephone numbers and IP addresses) of the IP telephones 1 of all users who use the IP telephone service system according to the present embodiment can be registered in the service server 4 and centrally managed.

1-1-3-2. Calling Operation FIG. 9 is a diagram showing a flowchart of a calling program executed by the CPU 66b of the IP telephone 1. This program is executed when calling an arbitrary telephone (IP telephone 1 connected to the Internet network 3 or a subscriber telephone connected to the public telephone line network 2) using the IP telephone 1. When this program is started, first, the telephone number (or abbreviated number if the telephone number of the other party is input using the dial key group 42 is input, the EEPROM 6
The telephone number corresponding to the abbreviated number read from 6e is acquired (step S21). Next, the service server 4 is accessed through the Internet network 3, the telephone number acquired in step S21 is transferred to the service server 4, and the IP address corresponding to the telephone number is inquired (step S22). Next, waiting for a response from the service server 4 (step S23), when an IP address is returned from the service server 4, the IP telephone 1 having the IP address is addressed to the IP address via the Internet network 3. If an IP address is not returned from the service server 4 (that is, if the character string "NA" is returned), the telephone number acquired in step S21 is used. A normal voice call is made with the subscriber telephone having the telephone number as the destination via the public telephone line network 2 (step S2).
5).

According to this calling program, when an arbitrary telephone number is called by using the IP telephone 1, the called telephone number is notified to the service server 4 and the IP address associated with the telephone number is given from the service server 4. When the address is returned, IP communication can be performed with the other party via the Internet network 3, while the service server 4 returns predetermined information (“NA”) indicating that there is no corresponding IP address. If so, a normal voice call can be made with the other party via the public telephone line network 2.

1-1-3-3. Standby Operation FIG. 10 is a diagram showing a flowchart of a standby program executed by the CPU 66b of the IP telephone 1. This program is continuously executed while the IP telephone 1 is in the standby state. When this program starts, first, the public telephone line network 2 or the Internet network 3
The process loops while determining whether or not there is an incoming call from the mobile phone (step S31), determining whether or not another telephone is calling (calling) operation (step S32), and determining whether or not an IP address change event of the own device (step S34). If the incoming call is determined, the incoming call medium (public telephone line network 2 / Internet network 3) is determined (step S36), and if the incoming call is from the internet network 3, the incoming call destination IP telephone 1 is used. If an incoming call is made from the public telephone line network 2, an ordinary voice call is made to the calling subscriber telephone (step S38).

Alternatively, when the calling operation is determined in step S32, the calling program described above (see FIG. 9).
Is executed (step S33), or step S3
4 determines an IP address change event, the IP address change event processing program (see FIG.
(See) is executed (step S35).

According to this standby program, it is possible to respond to a call from either the Internet network 3 or the public telephone line network 2, and the IP telephone 1 can be used for both an IP call and a normal voice call. it can.

1-2. Description of Operation of IP Telephone Service System FIG. 11 is a conceptual diagram for explaining an operation of the IP telephone service system in the present embodiment. The IP telephone service system according to the present embodiment includes, for example, a telephone number “03-3333-4444” from the IP telephone 1.
To call the service server, first call the service server 4 via the Internet network 3 and call its telephone number "03-3333-44".
Query the IP address associated with 44 ".
Then, from (A) the service server 4, the IP address (2
55.255. *. If there is a response of 2), the IP telephone 1 ′ having the IP address is called via the internet network 3, while (B) the service server 4 sends predetermined information (“NA”) indicating that there is no corresponding IP address. If there is a response, the telephone number "03" is sent via the public telephone line network 2.
-3333-4444 "can be called. Therefore, the calling user is
It is only necessary to know the telephone number of the other party, and even if the other party is the IP telephone 1, there is no need to remember the IP address of the other party, and it is an extremely convenient IP telephone. A service system can be built.

1-3. IP Address Change Event Processing Operation FIG. 12A is a diagram showing a flow chart of an IP address change event processing program executed by the CPU 66b of the IP telephone 1. When this program is executed, the telephone number of the own device and the changed telephone number are changed. IP address (EEPR
The latest IP address stored in the OM 66e) is notified to the service server 4 via the Internet network 3 (step S41). A processing program (FIG. 12B) for receiving this notification is installed in the processing rule section 29 of the service server 4, and this processing program on the service server side uses the telephone number and the IP address via the Internet network 3. When the address is received (step S4
2), using the telephone number as a keyword, telephone number / I
The P address correspondence table 19 is searched, and a record having the same telephone number is extracted (step S43). Then, the IP address stored in the IP address field 19b of the record is rewritten and updated with the changed IP address (the IP address received in step S42) (step S44).

According to this IP address change event processing program, the IP assigned to the IP telephone 1
When the address is changed, the changed IP address is immediately notified to the service server 4, and the corresponding record in the telephone number / IP address correspondence table 19 of the service server 4 is updated. Therefore, especially when a dynamic IP address is assigned by DHCP, the latest IP address assigned to the IP telephone 1 and the IP address stored in the telephone number / IP address correspondence table 19 of the service server 4 do not match. The problem can be avoided and the reliability of the IP address notification can be improved.

1-4. Telephone number for service server 4 /
IP Address Registration Method FIG. 13 shows information (telephone number and IP address) in the telephone number / IP address correspondence table 19 of the service server 4.
It is a figure which shows some methods of registration. In this figure, (a) is the "caller number notification service" described above.
Is the method of using. In this method, first, the service server 4 is called from the IP telephone 1 via the public telephone line network 2, and then the IP address of the IP telephone 1 is notified to the service server 4 via the Internet network 3.
As described above, in this method, since the telephone number of the calling IP telephone 1 is notified to the service server 4 by the "caller number notification service", the service server 4 notifies the service server 4 of such information (telephone number and IP number). The address) may be fetched and registered in the telephone number / IP address correspondence table 19.

The method (b) is to notify both the telephone number and the IP address via the Internet network 3. According to this method, the public telephone line network 2
Since it does not use, the communication cost can be reduced and the contract of "Caller ID notification service" is not required. Therefore, it is possible to meet the request of the user who wants "non notification" of the caller ID. The advantage is that you can

The method (c) differs from the above two methods (a) and (b) in that the telephone number and the IP address can be registered using a browser. According to this method, when the service server 4 is accessed from an Internet terminal 70 (having at least a browser) such as a personal computer connected to the Internet network 3, the service server 4 causes the service server 4 to register a web number 71 for a telephone number and an IP address. (HTML document) is transmitted to the Internet terminal 70,
The user inputs necessary information into a predetermined text box control (a text box control 71a for inputting a telephone number, a text box control 71b for inputting an IP address, etc.) displayed in the web document 71, and the web document 71 is displayed. By clicking the send command control button 71c, the input information can be sent to the service server 4. Therefore, according to this method, the service server 4 receives the above-mentioned input information (telephone number and IP address) via the Internet network 3, and calls the same as the above two methods (a) and (b). It can be registered in the number / IP address correspondence table 19, and as an information input means on the user side,
An advantage that an existing Internet terminal 70 such as a personal computer can be used is obtained.
Since the information can be registered even at a place distant from the IP telephone 1, it becomes possible for another person to register the required information in the service server 4.

2. Other Embodiments (Using Service Terminal Device) In the above description, an example of using the IP telephone 1 having both the functions of the IP telephone and the subscriber telephone is shown, but the technical idea of the invention is not limited to this. Not limited to. By connecting the subscriber telephone 72, the subscriber telephone 72
A mode in which a relay device (service terminal device) that can also be used as a P telephone may be used.

2-1. Configuration of Service Terminal Device 80 FIG. 14A is an external view of an example of the service terminal device 80. The service terminal device 80 has a housing 81 that is aesthetically designed (designed), and a subscriber telephone 72 (hereinafter abbreviated as “telephone 72”) is provided on an arbitrary surface (for example, front panel) of the housing 10. PHONE connection port 82 for connecting a telephone cable from the Internet), IN for connecting a network cable from the Internet network 3
An ET line connection port 84, a LINE connection port 84 for connecting a telephone cable from the public telephone line network 2 and the like are arranged in an appropriate layout, and a power cable 82a is pulled out from an appropriate position.

FIG. 14B is a conceptual internal functional block diagram of the service terminal device 80. The service terminal device 80 includes a signal conversion unit 85, a control unit 86, an Internet communication unit 87, a public telephone line communication unit 88, and a power supply unit 89, and these units have the following functions.

2-1-1. The signal converting unit 85 The signal converting unit 85 converts the transmission signal or the DTMF signal output from the telephone set 72 into a signal format suitable for the processing of the control unit 86 and transfers the signal format to the control unit 86. The transmitted transmission signal or DTMF signal is converted into a signal format suitable for the processing of the telephone 72 and transferred to the telephone 72.

2-1-2. Control Unit 86 The control unit 86, although not particularly limited, centrally controls the entire operation of the service terminal device 80 by a micro program control method.

FIG. 15 is a block diagram of the control unit 86. The control unit 86 includes an input / output interface 86a,
Microcomputer unit (hereinafter abbreviated as "CPU") 84b, volatile information storage unit (hereinafter abbreviated as "RAM") 86c, read-only nonvolatile information storage unit (hereinafter abbreviated as "ROM") 86d, and electrical rewriting Possible non-volatile information storage unit (hereinafter abbreviated as "EEPROM") 8
6e and the like.

The input / output interface 86a has a DTMF signal and a call signal (sending signal / transmission signal /
(Received signal), IP packet from the communication section 87 for Internet, and DTM from the communication section 88 for public telephone line
F signals and call signals are input and output.

The CPU 86b uses the "telephone number retrieval means", "transmission means", "reception means",
It has the function of "communication means", and ROM86d
The control program stored in advance in RAM8
6c, and by executing the control program thereof, while fetching required signals from the respective units (the signal conversion unit 85, the Internet communication unit 87, the public telephone line communication unit 88) via the input / output interface 86a, Various arithmetic processes necessary for controlling the overall operation of the service terminal device 80 are performed, and various signals obtained as a result of the arithmetic operations are processed by the respective units (the signal conversion unit 85, the Internet communication unit 87, the public telephone) via the input / output interface 86a. It is output to the line communication unit 88).

The control unit 86 realizes a predetermined control processing function by organically combining a hardware resource such as the CPU 86b and a software resource such as a control program stored in the ROM 86d, and in particular, the present invention. A processing function indispensable to the user, more specifically, when calling another telephone from the telephone 72, the telephone number of the destination telephone is taken out, the telephone number is notified to the service server 4, and the telephone is called from the service server 4. When the IP address associated with the number is returned, while making an IP call with the other party via the Internet network 3 using the Internet communication unit 87,
When predetermined information (“NA”) indicating that there is no corresponding IP address is returned from the service server 4, a normal voice call is made with the other party via the public telephone line network 2 via the public telephone line communication unit 88. It is possible to realize the function of performing.

The RAM 86c is used as a work area for the CPU 86b, and is the ROM 86d.
Stores the above control program and various fixed data necessary for executing the program in advance, and the EEPROM 86e stores rewritable variable data unique to the user. The variable data unique to the user includes at least the global IP address assigned by the ISP.

2-1-3. Public telephone line communication unit 88 The public telephone line communication unit 88 is an arbitrary telephone number (DTM output from the telephone set 72) via the public telephone line network 2.
The telephone number based on the F signal) can be called. In addition, after a call is established with the telephone having the telephone number (callee telephone), a voice call is made between the callee telephone and the caller telephone 72 (in the case of a general subscriber telephone line, an analog signal voice call is used). Call, ISD
In the case of N lines, it is possible to make a voice call using a digital signal. Further, when a call is made from the telephone of the other party, the call can be established in response to the call.

2-1-4. Internet Communication Unit 87 The Internet communication unit 87 corresponds to the “TCP / IP communication unit” described in the gist of the invention, and performs data communication with the IP telephone and the service server 4 on the Internet network 3. Is what you can do. Specifically, it is packet communication (however, TCP / IP packet based) data communication, in which the global IP address of the other party (IP telephone or service server 4) is set to the destination address of the packet, and the packet Is the global IP address of the device itself (the global IP address stored in the EEPROM 86e).
Address) and set the IP on the Internet network 3.
Two-way data communication (packet communication) can be performed with the telephone and the service server 4.

2-1-5. Power supply unit 89 The power supply unit 89 is an internal device of the service terminal device 80, that is, the signal conversion unit 85, the control unit 86, the communication unit 87 for the Internet, and the public telephone, from the commercial power input via the power cable 82a. The internal power supply voltage necessary for the operation of the line communication unit 88 is generated and supplied to these internal devices.

2-2. According to the service terminal device 80 having such a configuration, when the telephone 72 connected to the service terminal device 80 calls another telephone, the telephone number of the destination telephone is taken out. , The telephone number is notified to the service server 4, and the IP associated with the telephone number from the service server 4 is notified.
When the address is returned, an IP call is made with the other party via the Internet network 3 using the Internet communication unit 87, while the corresponding I from the service server 4 is transmitted.
When the predetermined information (“NA”) indicating that there is no P address is returned, a normal voice call can be made with the other party via the public telephone line network 2 via the public telephone line communication unit 88.

Therefore, by using the service server 4 together, the caller user can change the IP address of the caller.
The advantage is that it is not necessary to write down the address and remember it, or to confirm it with the other party. As a result, there is a problem in making an IP call on the Internet network 3, that is, for a general user who has no knowledge of IP, even if the other party says, "I want you to give me the IP address," any information is transmitted. Whether it's good or not, even if you know the information to convey, the IP address notation format is familiar like a telephone number (for example,
Since there is no telephone number in Tokyo starting with "03" etc., it is possible to avoid transmission errors (mistakes and mistakes in listening), and it is possible to solve the problem that IP addresses cannot be notified with sufficient reliability. Even a person who has no knowledge of can make an IP call without any trouble, and can use the existing subscriber telephone set 72 to make both an IP call and a normal voice call.

[0082]

In the IP telephone service system according to the first aspect of the present invention, the IP telephone on the network requests the service server on the network to retrieve the IP address based on the telephone number of the called telephone. Is issued, the service server searches the IP address associated with the telephone number. Then, if the IP address is hit, the IP address is returned from the service server to the requesting IP telephone, while if it is not hit, I
Predetermined information indicating that the P address has not been registered is returned.

Therefore, when the IP address is returned, the IP telephone can use the IP address to make an IP call with the called telephone via the network, and indicates that the IP address has not been registered. When the predetermined information is returned, normal voice communication with the called telephone can be performed via the public telephone line network. As a result, artificial notification of the IP address becomes unnecessary, various inconveniences (listening mistakes, etc.) associated with the artificial notification can be eliminated, and the reliability of the IP address notification can be improved.

In the IP telephone according to the second aspect of the present invention, when the IP address is returned from the service server, it is possible to make an IP call with the called telephone via the network using the IP address. Further, when the predetermined information indicating that the IP address has not been registered is returned from the service server, a normal voice call with the called telephone can be performed via the public telephone line network. Therefore, it is possible to provide a suitable IP telephone by applying it to the above IP telephone service system.

In the service terminal device according to the third aspect of the present invention, when a telephone is connected to the device and another telephone is called from the telephone, an inquiry about the IP address of the other telephone is made to the service server. When the IP address is returned from the service server, the I
It is possible to make an IP call with the called telephone via the network using the P address, and when the service server returns the predetermined information indicating that the IP address has not been registered, the public telephone line network is used. A normal voice call with the called telephone can be performed. Moreover, the existing subscriber telephone set can be used as it is to make an IP call, and there is no need to prepare a dedicated telephone (IP telephone) for the IP call.

In the IP telephone service system according to the fourth aspect of the present invention, the telephone number and IP address of the IP telephone can be freely registered in the service server. Therefore, it becomes possible to make an IP call with an unspecified large number of parties addressed to the telephone number registered in the service server.

Further, in this IP telephone service system, when the IP address corresponding to the telephone number of the other party of the call is registered in the service server, the IP call is automatically performed using the IP address via the Internet network. Therefore, for example, the usual call partner is I of the present invention.
When the user becomes a registered user of the P-telephone service system, even if the caller does not know that (became a registered user), the IP call can be automatically made with the other party. That is, in the conventional IP power system,
It was necessary to notify all call parties of the fact that the IP telephone was ready to be used.
In the P telephone service system, it is possible to improve the convenience particularly because no such contact is required.

In the IP telephone service system according to the fifth aspect of the present invention, the telephone number and IP address of the IP telephone can be freely registered in the service server. Therefore, it becomes possible to make an IP call with an unspecified large number of parties addressed to the telephone number registered in the service server.

[Brief description of drawings]

FIG. 1 is a conceptual configuration diagram of an IP telephone service system in the present embodiment.

FIG. 2 is a diagram showing a hardware configuration of a service server 4 and a telephone number / IP required for an IP address notification service.
It is a conceptual diagram of an address correspondence table.

FIG. 3 is a diagram showing a simple hierarchical model of hardware resources and software resources of a service server 4 and a conceptual diagram of an IP telephone service system.

FIG. 4 is a diagram showing a conceptual flowchart of a processing rule section 29.

FIG. 5 is an external view of an example of the IP telephone 1 and a partial rear view thereof.

FIG. 6 is an electrical block diagram of the IP telephone 1.

FIG. 7 is a block diagram of a central control unit 66.

FIG. 8 is a diagram showing a flowchart of an initial registration program executed by the IP telephone 1.

FIG. 9 is a diagram showing a flowchart of a calling program executed by the IP telephone 1.

FIG. 10 is a diagram showing a flowchart of a standby program executed by the IP telephone 1.

FIG. 11 is a conceptual diagram for explaining the operation of the IP telephone service system.

FIG. 12 is a diagram showing a flowchart of an IP address change event processing program executed by the IP telephone 1 and the service server 4.

FIG. 13 is information (telephone number and IP address) in the telephone number / IP address correspondence table 19 of the service server 4.
It is a figure which shows some methods of registration.

14 is an external view of an example of a service terminal device 80 and a conceptual internal functional block diagram of the service terminal device 80. FIG.

FIG. 15 is a block diagram of a control unit 86.

[Explanation of symbols]

1 ...- IP telephone combined type telephone (IP telephone) 2 ...- Public telephone line network 3 ... Internet network (network) 4 ... Service server 29 ... Processing rule unit ( Search means, information return means, reception means, information registration means 30 ... Database unit (holding unit) 66 ... Central control unit (control unit) 66b ... CPU (transmitting unit, receiving unit, Communication means 67 ...- Public telephone line communication unit 68 ...- Internet communication unit (TCP / IP communication unit) 70 ... Internet terminal (registration request source terminal) 71 ... Web Document (registration screen) 72 ... Phone (subscriber phone) 80 ... Service terminal device 82 ... PHONE connection port (phone connection port) 86 ... Control unit 86b ... CP (Telephone number extracting means, transmission means,
Receiving means, communication means) 87 ... Internet communication unit (TCP / IP communication unit) 88 ... Public telephone line communication unit

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5K027 AA10 BB01 FF22 KK02                 5K030 GA16 HA01 HA08 HB01 HB14                       HC01 HD03 HD09 JT01 KA04                       LA02 LD17 MA06                 5K101 LL01 LL02 MM01 NN02 NN18                       NN21 PP03 QQ11 SS07

Claims (7)

[Claims] 1. An I telephone applied to an IP telephone capable of making an IP call via a TCP / IP compatible network.
A P telephone service system, wherein the IP telephone is connectable to a public telephone line network, and a telephone number which is identification information in the public telephone line network of each of the IP telephones on the network. Holding means for holding the IP address, which is the identification information in the network, in association with each other, and in response to an inquiry from any IP telephone, the telephone number of the destination IP telephone notified from the IP telephone at the time of the inquiry is used as a clue. Search means for searching the holding means; and, as a result of the search by the search means, I of the destination IP telephone.
When the P address is found, the IP address is returned to the requesting IP telephone, and when it is not found, the service server is provided with an information returning means for returning predetermined information indicating that the IP address is not registered. Characteristic IP telephone service system. 2. A public telephone line communication section capable of performing voice communication with another telephone via the public telephone line network, and another telephone via a TCP / IP compatible network. TCP / IP communication unit capable of performing data communication between the two, and voice communication with the other party's telephone by selectively using the public telephone line communication unit and the TCP / IP communication unit. A control unit for controlling data communication, wherein the control unit, when calling another telephone, provides a telephone number, which is identification information of the telephone in the public telephone line network, on a predetermined service server provided on the network. And a receiving means for receiving information returned from the service server in response to the transmission, and if the information received by the receiving means is an IP address, the IP The TCP with the address as the destination
While performing data communication via the / IP communication unit, if the information is predetermined information indicating that the IP address has not been registered, voice communication is performed via the public telephone line communication unit with the telephone number as the destination. An IP telephone having a communication means. 3. A public telephone line communication unit capable of performing voice communication with another telephone via the public telephone line network, and another telephone via a TCP / IP compatible network. TCP / IP communication unit capable of performing data communication between the two, and voice communication with the other party's telephone by selectively using the public telephone line communication unit and the TCP / IP communication unit. It is provided with a control unit for controlling data communication and a telephone connection port for connecting a telephone cable from a subscriber telephone, and the control unit outputs from the subscriber telephone when the subscriber telephone calls another telephone. Telephone number extracting means for extracting the telephone number, which is the identification information of the other telephone in the public telephone line network, based on the dialing signal, and the telephone number extracted by the extracting means for the network number. Transmission means for transmitting to a predetermined service server provided on the network, reception means for receiving information returned from the service server in response to the transmission, and information received by the reception means is an IP address. In this case, the TCP is addressed to the IP address.
/ Allows data communication between the subscriber telephone set and the other telephone set via the IP communication unit, while if the information is predetermined information indicating that the IP address is not registered, the telephone number is set as the destination. A service terminal device comprising: a communication unit that allows voice communication between the subscriber telephone and the other telephone via the public telephone line communication unit. 4. The service server is further configured such that an IP telephone on the network sends the telephone number and IP of the telephone.
2. The IP telephone service system according to claim 1, further comprising: a reception unit that receives the address registration request, and an information registration unit that newly creates the associated information in the holding unit when receiving the request. 5. The receiving means receives a registration target telephone number via the public telephone line network and a registration target IP address via the network using a caller number notification service. The IP telephone service system according to claim 4. 6. The IP telephone service system according to claim 4, wherein the receiving unit receives a telephone number and an IP address to be registered via the network. 7. The reception means transmits a registration screen in a web document format to a registration request source terminal on the network, and the telephone number and IP address of the registration target input on the registration screen are transmitted via the network. The IP telephone service system according to claim 4, wherein the IP telephone service system receives the information.