JP5067543B2 - IP telephone system, slave unit and communication processing program - Google Patents

Description

  The present invention relates to a system for performing telephone communication via a server device connected to at least an IP network, a slave device used in the system, and a program executed by the slave device.

  There has been provided an IP telephone that performs relay exchange using VoIP, which is a technique for transmitting a voice signal using an IP network such as the Internet or an intranet, and provides a telephone communication service.

  In this IP phone, the calling side and the receiving side use the IP address assigned to each to transmit the telephone voice by IP packet, thereby enabling a call, and the call can be made with a low call charge. Has become possible, so the spread has expanded.

  And, as described in Patent Document 1 described later, in the VoIP telephone system, an invention for realizing an additional function of simultaneous voice call is made, and in the IP telephone, by expanding its function, Convenient IP phones have been provided.

The above-described Patent Document 1 is as follows.
JP 2004-320290 A

  As described above, with regard to IP telephones, various functions are expanded to improve convenience. However, for example, an IP telephone system formed for the purpose of providing a service similar to a button telephone system for enterprises is considered to have a portion where convenience has not been sufficiently improved.

  For example, in the case of a conventional key telephone system, since a telephone (slave unit) connected to the main unit is controlled as an extension telephone, a telephone that is not connected to the main unit can be used as a sub unit of the main unit. I can't. For example, when working from home, there is a problem that the telephone at home cannot be used as a handset of the button telephone system formed in the company, and smooth telephone communication at work cannot be performed. .

  This problem occurs similarly in the IP telephone system. And in recent years, as you can see from the fact that the word SOHO (Small Office, Home Office), which means work styles that are centered on telecommuting, has come to be widely recognized, The number of working people is increasing, and IP phone services with inexpensive call charges are used, and terminal devices such as home personal computers connected to the Internet can be easily used as slave units of the IP phone system. It is hoped that.

  Further, it is expected that the convenience will be further improved by providing a new function utilizing the features of the IP phone.

  In view of the above points, an object of the present invention is to make it possible to construct an IP telephone system extensively and to further enhance the functions of the IP telephone system.

In order to solve the above-described problem, an IP telephone system according to the invention described in claim 1 provides:
Address information that manages one or more IP (Internet Protocol) telephone lines and / or public telephone lines, and is connected to at least an IP network and manages address information about a terminal device that may be called through its own device. A server apparatus comprising a management means , and external server communication and extension communication between the one or more IP telephone lines and / or public telephone lines registered in the address information management means of the server apparatus. It consists of a plurality of slave units performed through
The slave is connected to the server device through the IP network or LAN (Local Aria Network),
Each of the slaves is
Registration means for registering address information of the own device with respect to the server device;
When receiving an incoming call through the server device, based on the number of digits of the number notified at the time of the incoming call, an identification means for identifying whether the incoming call is from an outside line or an incoming line ,
Based on the identification result of the identification means, a display capable of distinguishing between an external line and an internal line is performed, and a slave unit connected to the server device through the IP network and a slave unit connected to the server device through the LAN And a display control means for controlling so as to change the display mode of information on the other party .

According to the IP telephone system of the first aspect of the present invention, the slave unit is registered in the server device, so that the slave unit is connected to the server device via the IP network or the LAN, and the server device is connected. To be able to operate as a handset. Then, when the slave unit receives an incoming call to itself through the server device, the slave unit identifies whether the call is received from an outside line or an extension line based on the number of digits of the number notified at the time of the incoming call. Will be able to. Further, the display content can be changed for each terminal device. Therefore, for example, the terminal device installed in the same building and the terminal device installed and used at home for telecommuting are made to display differently, and the terminal device installed and used at home is used. For example, it is possible to prevent unnecessary information such as the name of the other party from being displayed.

  As a result, the slave unit can be connected to the server device via the IP network, and one IP telephone system can be constructed over a wide range. It is possible to enhance the functions of the IP telephone system by realizing a new function such as being able to identify whether the line is an external line or an internal line and notifying it.

  According to the present invention, it is possible to construct one IP telephone system in a wide range and realize new functions such as discrimination of extension lines and external lines for each slave unit, thereby enhancing the functions of the IP telephone system. Can be planned.

  Hereinafter, an embodiment of the system, apparatus, and program of the present invention will be described with reference to the drawings. In the following, an embodiment of the present invention will be described by taking as an example a case where the present invention is applied to an IP telephone system provided for a company.

[Overall Configuration of IP Telephone System of Embodiment]
FIG. 1 is a diagram for explaining the overall configuration of the IP telephone system of this embodiment. As shown in FIG. 1, in this embodiment, terminal devices 30 (1), 30 (2), 3 () are connected to a SIP (Session Initiation Protocol) server 10 by LAN connection via a hub 20. 3), and the terminal device 40 (1) is connected via the IP network 100, and the IP telephone system 1 is configured. In FIG. 1, a terminal device is connected to the SIP server 50 via a hub 60 via a LAN 60 to constitute an IP telephone system 2.

  Here, the IP telephone system 1 includes terminal devices 30 (1), 30 (2), 3 (3),... That are LAN-connected to the SIP server 10, and the SIP server 10 via the IP network 100. Are connected to each other, but the terminal devices 30 (1), 30 (2), 3 (3),... Are the same as the terminal device 40 (1). It can be handled as belonging to the extension range.

  That is, the terminal devices 30 (1), 30 (2), 3 (3),... That are LAN-connected to the SIP server 10 are installed in one building, for example, and a conventional button telephone system. Is an example of a telephone terminal within the extension range connected to the same main unit. On the other hand, the terminal device 40 (1) connected to the SIP server 10 via the IP network 100 is a terminal device placed at the home of an employee working from home, for example, and is conventionally an extension. The terminal device was out of range. However, in the IP telephone system 1 of this embodiment, the terminal devices 30 (1), 30 (2), 3 connected to the SIP server 10 via the LAN by being connected to the SIP server 10 through the IP network 100. (3) It is positioned as an extension terminal device at a position equivalent to.

  Therefore, when the terminal devices 30 (1), 30 (2), 3 (3),... That are connected to the SIP server 10 via the LAN make an outside line call, the call is made via the SIP server 10. When the terminal device 40 (1) makes an outside line telephone call, the terminal device 40 (1) is connected to the SIP server 10 through the IP network 100 and made through the SIP server 10.

  Further, extension calls can be easily performed between terminal devices located in the IP telephone system 1 indicated by dotted lines in FIG. Therefore, as usual, a telecommuting employee receives an instruction by making an external phone call to his company, or a company calls an telephoning employee to work from home. Never do.

  As shown in FIG. 1, the terminal device 40 (1) connected to the SIP server 10 through the IP network 100 and the terminal devices 30 (1), 30 (2), 30 (3) connected to the SIP server 10 via the LAN. ),..., As in the case of extension calls made in the same building, it is possible to make an extension call only by indicating an extension number. Therefore, it is possible to achieve smooth communication without incurring unnecessary external line charges.

  As described above, the IP telephone system 1 according to this embodiment includes the SIP server and a plurality of terminal devices connected to the SIP server through the LAN or the IP network. Although described later in detail, the SIP server 10 is different in function, but the position corresponds to, for example, a main apparatus (master unit) in a conventional company key telephone system. The terminal devices 30 (1), 30 (2), 40 (1), etc. connected to the SPI server 10 can be positioned as slave units of the SIP server 10, which is a master unit, as will be described in detail later. Is. Hereinafter, the IP telephone system 1 to which the present invention is applied will be described in detail.

  As shown in FIG. 1, the SIP server 10 is connected to both the IP network 100 and the public network 200. The IP network 100 is a network in which Internet technology such as the Internet or an intranet is used and communication is possible by packet exchange using TCP / IP (Transmission Control Protocol / Internet Protocol) or the like. The public network 200 means an analog or digital public communication network such as a conventional analog telephone line, ISDN (Integrated Services Digital Network), or an optical communication network.

  Further, the terminal devices 30 (1), 30 (2), 30 (3),... Are connected to the LAN via the HUB 20 as described above. Here, the LAN connection may be a wired connection or a wireless connection. The protocol used is also IEEE (Institute of Electrical Electronics Engineers) 802.3 (Ethernet (registered trademark) type LAN), IEEE 802.5 (token link type LAN), IEEE 802.11, IEEE 802.11b, IEEE 802.11, or Various protocols such as these succeeding protocols and other protocols may be used.

  The SIP server 10 has a registrar server function and a proxy server function. In other words, the SIP server 10 can manage address information about a terminal device that may be called through the IP network 100 or the IP network and the LAN by the registrar server function.

  In addition, when the SIP server 10 receives a SIP message from its own child device by the proxy server function, the SIP server 10 selects the appropriate IP address based on the address information managed by the registrar server function. It can be transferred to a destination having an address.

  In addition, the SIP server 10 also manages address information about the slave unit connected to the own device, and makes a call (outgoing) from the terminal device connected to the own device and to the terminal device connected to the own device. It also has a function of relaying an incoming call (incoming call) as it is, and also realizes a function as a master unit in one IP telephone system.

  In this way, the SIP server 10 performs only so-called call management. Therefore, the SIP server 10 allocates and manages communication information to each terminal device as a slave unit connected to the own device, or a child connected to the own device, like a main device of a conventional key telephone system. Detailed control for each terminal device as a machine is not performed.

  Note that the SIP server 10 of the IP telephone system 1 of this embodiment is also connected to the public network 200, and is not only connected to a terminal device connected to the IP network, but also connected to the public network 200. A communication line can also be connected to the apparatus so that a telephone call can be made.

  Further, in FIG. 1, terminal devices 30 (1) and 30 (2) connected to the SIP server 10 via the HUB 20 and a terminal device 40 (1) connected to the SIP server 10 via the IP network 100. Each of these is a personal computer, and by installing a program (soft phone program) for realizing a telephone function, it can function as a so-called software phone (hereinafter referred to as a soft phone). Is.

  Specifically, each of the terminal devices 30 (1), 30 (2), and 40 (1) as a soft phone realizes a function of registering its own address information in the SIP server according to SIP (Session Initiation Protocol). Along with the basic function as a telephone terminal, that is, an analog voice signal obtained by collecting voice is converted into a digital signal, which is transmitted as packet data in a predetermined format, It has a function of receiving a packetized digital audio signal addressed to itself and converting it into an analog audio signal and outputting it.

  For this reason, each of the slave units 30 (1), 30 (2), and 40 (1), which are softphones, collects sound, converts it into an electrical signal, and takes it into a personal computer. So that so-called handsets 31 (1), 31 (2), and 41 (1) having a speaker (receiver) for emitting sound corresponding to the transmitted audio signal are connected. Has been.

  These handsets 31 (1), 31 (2), 41 (1) are input terminals (microphone terminals) of audio signals provided in the slave units 30 (1), 30 (2), 40 (1) that are personal computers. ) And an audio signal output terminal (speaker terminal), and a so-called USB phone connected via a USB (Universal Serial Bus) terminal. In addition, here, the case of a handset that is used by being held by hand has been described. However, there is a so-called headset that includes headphones and a microphone and is attached to the user's head so as to make a call.

  In the IP telephone system, in addition to a soft phone realized by installing software for realizing a telephone function in a personal computer, as shown by a terminal 30 (3) in FIG. Of course, it is possible to connect to 10 and use. In the following, a configuration example of the SIP server 10 and configuration examples of the terminals 30 (1), 30 (2), and 40 (1) that are softphone devices will be specifically described.

[Configuration Example of SIP Server 10]
First, a configuration example of the SIP server 10 will be described. FIG. 2 is a block diagram for explaining a configuration example of the SIP server 10 according to this embodiment. As shown in FIG. 2, the SIP server 10 includes an IP interface (hereinafter abbreviated as IPI / F) 101, a packet decomposition / generation unit 102, and a LAN interface (hereinafter abbreviated as LAN I / F) 103. And an address management database (hereinafter abbreviated as “address management DB”) 104, a public network interface (hereinafter abbreviated as “public network I / F”) 105, and a control unit 110.

  The control unit 110 controls each unit of the SIP server 10 according to this embodiment, and as shown in FIG. 2, a CPU (Central Processing Unit) 111, a ROM (Read Only Memory) 112, a RAM (Random Access Memory). ) 113 is a microcomputer configured by being connected through the CPU bus 114.

  Here, the CPU 111 generates a control signal for controlling each unit by executing a program stored in the ROM 112 described later, and supplies the control signal to each unit, or processes information from each unit It is. As described above, the ROM 112 stores and holds various programs executed by the CPU 111 and various data necessary for processing.

  The RAM 113 is mainly used as a work area, such as temporarily storing intermediate results of processing. Although not shown, for example, a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable ROM) or a flash memory is provided, and data to be retained even when the power is turned off, for example, various setting parameters and functions are improved. It is possible to store and hold new programs provided for the purpose.

  The IP I / F 101 is for sending / receiving data to / from the IP network 100. The IP I / F 101 accepts packet data supplied through the IP network 100 and can process it on its own. The data is converted into data and supplied to the control unit 110, or the packet data to be transmitted supplied through the control unit 110 is converted into data in a transmission format and transmitted to the IP network 100. In the case of this embodiment, as shown in FIG. 1, the terminal device 40 (1) as a slave unit connected to the IP network 100 is also connected to the SIP server through the IP network 200 and the IP I / F 101. 10 to be connected.

  The LAN I / F 103 is for transmitting and receiving data to and from a LAN for IP telephones formed in a company, for example, and receives packet data supplied through the LAN, The data is converted into data in a format that can be processed by the own device and supplied to the control unit 110, or the packet data to be transmitted supplied through the control unit 110 is converted into data in a format for transmission and sent to the LAN. To do. In the case of this embodiment, as shown in FIG. 1, the HUB 20 is connected through the input / output terminal 103a, and the terminal devices 30 (1), 30 (2), which are slave units, are connected via the HUB 20. 30 (3),... Are connected to the SIP server 10.

  The public network I / F 105 is for sending and receiving data to and from the public network 200. A format in which data supplied through the public network 200 is received and can be processed by itself. The data to be transmitted is supplied to the control unit 110, or the data to be transmitted supplied through the control unit 110 is converted into data in a transmission format and transmitted to the public network 200.

  The packet decomposition / generation unit 102 decomposes and generates packet data. Specifically, terminal devices 30 (1), 30 (2), 30 (3),... Connected to the SIP server 10 via the LAN, or terminal devices 40 (1) connected through the IP network 100. The packet data to be transmitted to the terminal device connected to the public network 200 is received by the control unit 110 through the LAN I / F 103 or the IP I / F 101, and after being decomposed by the packet decomposition / generation unit 102, The data is transmitted to the public network 200 through the public network I / F 105 and transmitted to the intended destination.

  Further, terminal devices 30 (1), 30 (2), 30 (3),... Connected from the terminal devices connected to the public network 200, and terminal devices 40 ( The data to 1) is received through the public network I / F 105 and then converted into packet data of a predetermined format in the packet disassembly / generation unit 102, and this is converted into the LAN or IP network 100 through the IPI / F 101 and the LAN I / F 103. To be sent to the intended destination.

  Note that packet data is transmitted between the terminal device 40 (1) connected to the IP network 100 and the terminal devices 30 (1), 30 (2), 30 (3),. Therefore, the packet disassembly / generation unit 102 does not disassemble or generate the packet, and the IPI / F 101 and the LAN I / F 103 prepare the data format and transmit / receive it as it is.

  The address management DB 104 stores and holds address information about a terminal device that is connected to the IP network 100 or the LAN and may be called through the SIP server 10 in order to realize the above-described registrar server function. is there. Specifically, when the control unit 110 of the SIP server 10 receives registration requests (register requests) from various terminal devices connected thereto via the IP I / F 101 and the LAN I / F 103, Address information such as a URI (Uniform Resource Identifier) and IP address included is extracted, and the extracted address information is registered in the address management DB 104, or registration information in the address management DB 104 is updated using the extracted address information.

  In this way, the information registered and managed in the address management DB 104 is referred to, the communication destination requested from the slave unit of the own device is reliably specified, and the information (packet to be transmitted to the specified destination device (packet) The function as a proxy server that transfers data) is realized. The information registered and managed in the address management DB 104 is also used for determining the incoming call to the slave unit connected to the own unit.

  Here, a specific example of the management information formed in the address management DB 104 will be described. FIG. 3 is a diagram for explaining a configuration example of management information (database) formed in the address management DB 104. In the address management DB 10 of the SIP server 10, in addition to address information about the terminal devices 30 (1), 30 (2), 30 (3),..., 40 (1) as slave units of the SIP server 10, It is also possible to manage address information of terminal devices of other IP telephone systems connected to the IP network 100.

  The management information formed in the address management DB 104 is basically a URI (SIP URI) transmitted from a terminal device connected to the IP network 100 and an IP address. The management information of the SIP server 10 of this embodiment is Information such as MAC (Media Access Control) address, extension number, and user name added in advance for each terminal device can be registered in the address management DB 104 for the terminal device as a child device of the SIP server 10. I can do it.

  Then, the terminal devices 30 (1), 30 (2), 30 (3),... And the terminal device 40 (1) in the IP telephone system 1 of this embodiment are connected to the IP network 100 outside the IP telephone system 1. When making a call to the terminal device, the SIP server 10 forwards the message to the target terminal device of the other party based on the management information of its own address management DB 104. Yes.

  Further, in the case of an external line that is connected to a terminal device constituting the own system or an extension within the own system, the SIP server 10 receives the transmitted message and sends it to the own system. I am doing so.

  When an IP telephone number is used for making a call, although not shown in FIG. 1, a gateway connected to the IP network 100 or a DNS (Domain Name System) is used to make an IP telephone number. The URI or the like is searched from and used. Similarly, when a call is made from the other party to the terminal device constituting the IP telephone system 1 using the IP telephone number, the gateway or DNS connected to the IP network 100 is used, A URI or the like is retrieved from the telephone number and used.

  As described above, the SIP server 10 of this embodiment includes the packet decomposition / generation unit 102 and the address management DB 104, and relays messages between terminals connected to various networks to which the SIP server 1 is connected. Is something that can be done.

[Configuration example of terminal device (softphone device)]
Next, configuration examples of the terminal devices 30 (1), 30 (2), and 40 (1) that are softphone devices will be described. Here, for the sake of simplicity, the case of the terminal device 30 (1) will be described as an example. However, the terminal devices 30 (2), 40 (1), etc. are connected to the SIP server 10 as slave units. The terminal device, which is a softphone device, is configured in the same manner.

  FIG. 4 is a block diagram for explaining a configuration example of the terminal device 30 (1) connected as a slave to the SIP server 10. As shown in FIG. 1, the terminal device 30 (1) includes an interface (hereinafter abbreviated as I / F) 301 for connecting to an IP network or a LAN, a packet disassembly / generation unit 302, and the like. Answering machine control section 303, ringer 304, voice data input / output interface (hereinafter abbreviated as voice data input / output I / F) 305, hard disk drive (hereinafter abbreviated as HDD) 306, and extension. / External line determination unit 307, display controller 308, operation input interface (hereinafter abbreviated as operation input I / F) 309, and control unit 310.

  As shown in FIG. 4, the handset 31 (1) is connected to the audio data input / output I / F 305, the display device 320 is connected to the display controller 308, and the keyboard device 330 is connected to the operation input I / F 309. It is connected.

  Here, as the display device 320, various display elements such as an LCD (Liquid Crystal Display) and a CRT (Cathode Ray Tube) display can be used. In this embodiment, for example, an LCD is used. It was used. In FIG. 4, the keyboard device 330 is connected to the operation input I / F 309. However, the keyboard device 330 is not limited to the keyboard device, and for example, a pointing device called a mouse or the like is connected together with the keyboard device 330. Can be used.

  The control unit 310 controls each unit of the terminal device 30 (1), and is a microcomputer configured by connecting a CPU 311 and a ROM 312, for example, a nonvolatile memory 314 such as an EEPROM or a flash memory through a CPU bus 315. is there. Here, the CPU 311 executes a program stored in the ROM 312 (to be described later), forms a control signal to be supplied to each part, and supplies this to each part, or processes information provided from each part. Is.

  In addition, as described above, the ROM 312 stores and retains various programs executed by the CPU 311 and various data necessary for processing. The RAM 313 is mainly used as a work area in various processes such as temporarily storing intermediate results of the processes. In addition, the nonvolatile memory stores data that should be retained even when the power of the terminal device 30 (1) is turned off, such as new processing programs and data provided for various setting parameters and function addition. It is something to keep in memory.

  The control unit 310 stores a program for realizing a function as a so-called SIP user agent that performs processing according to SIP in the ROM 312 or the nonvolatile memory 314, and this program is executed by the CPU 311. Thus, each unit is controlled to register its own address information to the SIP server, that is, when an arbitrary number or user name is designated, a URI is formed using this function, and this URI and its own IP A function for generating and transmitting a register request (registration request) for requesting registration from the SIP server in association with an address can be realized.

  In addition, when registering in the SIP server 10 which is the parent device of the own device, the terminal device 30 (1) of this embodiment, in addition to the URI and the IP address, the MAC address of the own device, the extension number, Information such as user names can also be registered. That is, as described with reference to FIG. 3, the terminal device 30 (1) as a slave unit of the SIP server 10 has a URI, IP address, MAC address, extension number, It has a function to register a user name.

  Further, the control unit 310 stores a program for realizing a softphone function in the ROM 312 or the nonvolatile memory 314. When the CPU 311 executes the program, the control unit 311 controls each unit, A function to perform communication is realized.

  Hereinafter, each part of this terminal device 30 (1) is demonstrated. The I / F 301 receives packet data addressed to its own device supplied through the IP network 100 or the LAN, converts it into packet data in a format that can be processed by the own device, and supplies the packet data to the control unit 310 or performs control. It realizes a function of converting packet data sent from its own device supplied through the unit 310 into data in a format sent to the IP network 100 or LAN, and sending the data to the IP network 100 or LAN. .

  The packet decomposition generation unit 302 is a part that decomposes and generates packet data. Accordingly, the packet data addressed to the own device received through the I / F 301 is supplied to the packet decomposition / generation unit 302 through the control unit 310, where it is decomposed and supplied to the control unit 310. If the decomposed packet data is voice data, the packet data is supplied to the handset 31 (1) through the voice data input / output I / F 305, which will be described later, and the other party through the speaker (handset) of the handset 31 (1). The sound from is emitted.

  Also, the audio signal collected through the microphone (speaker) of the handset 31 (1) is taken in as digital audio data through the audio data input / output I / F 305 and supplied to the packet decomposition / generation unit 302 through the control unit 310. Is done. The packet disassembly / generation unit 302 packetizes the audio data supplied thereto, generates packet data, and transmits the packet data through the I / F 301. As described above, the packet decomposition / generation unit 302 performs a decomposition process on the received packet data and a packetization process (packet data generation process) such as voice data to be transmitted.

  The answering machine control unit 303 performs various controls for realizing a so-called answering machine function. Specifically, when an instruction for executing the answering machine function is input from the user through the keyboard device 330 and the operation input I / F 309, the control unit 310 receives the instruction and executes the answering machine function to the answering machine control unit 303. Set.

  As a result, when the answering machine control unit 303 detects an incoming call addressed to itself through the I / F 301, it automatically responds to this and connects the communication line. Prepared I / F 301 sends a message notifying that the answering machine is in operation, such as “I'm out of my seat right now. Please give me a message after dialing.” To do.

  Thereafter, the answering machine control unit 303 sends out a dial tone for notifying that the message can be recorded through the I / F 301, and voice packet data (answer message message) transmitted from the other party. Is received through the I / F 301 and is recorded (recorded) in a predetermined recording area of the HDD 306 through the control unit 310. In this case, the packet data may be recorded as it is, and the packet may be decomposed at the time of reproduction, or the audio data in the packet-decomposed state may be recorded.

  As described above, the voice data (answer message message) recorded in a predetermined recording area of the HDD 306 by the function of the answering machine control unit 330 is played back from the user through the keyboard device 330 and the operation input I / F 309. In response to this, the answering machine control unit 303 reads it through the control unit 310 and supplies it to a reproduction unit of audio data (not shown) consisting of a reproduction processing unit and a speaker provided in its own apparatus for reproduction or audio The data is supplied to the handset 31 (1) through the data input / output I / F 305 and can be emitted through the speaker of the handset 31 (1).

  As described above, when the answering message recorded in the HDD 306 remains packet data, the message is decomposed by the function of the packet decomposition / generation unit 302 and reproduced.

  Further, when the answering machine control message 303 is recorded in the HDD 306, the answering machine control unit 303 can acquire the current time from a clock circuit (not shown) and manage when the answering message requirement message is recorded. In addition, the management information is supplied to the display device 320 through the control unit 310 and the display controller 308, and the management information is displayed on the LCD display screen of the display device 320 so that the user can confirm it.

  As described above, the answering machine control unit 303 of the terminal device 30 (1) according to this embodiment performs control so as to realize the answering machine function in general. Further, as can be seen from the above description, the answering machine function is not realized in common in the IP telephone system 1, but each terminal device 30 (1), 30 (2), 30 (3) as a slave unit. ),..., 40 (1). The hard disk of the HDD 306 has a large storage capacity, for example, tens of gigabytes or hundreds of gigabytes, and even a relatively long answering message can be recorded in large quantities. Unlike the answering machine function of, there is no limit on the recordable time of the answering service message per message.

  The ringer 304 is controlled by the control unit 310 when an incoming call is received by the own device, and emits a ringtone for notifying the user of the incoming call. In addition, the ringer 304 can emit a warning sound or the like under the control of the control unit 310.

  As described above, the audio data input / output I / F 305 is used to input / output audio data between the control unit 310 and the handset 31 (1). Specifically, the audio data supplied from the terminal device 30 (1) to the handset 31 (1) is converted into audio data in a format supplied to the handset 31 (1) in the audio data input / output I / F 305. To the handset 31 (1). Also, the audio data from the handset 31 (1) is converted into audio data in a format that can be processed by the terminal device 30 (1) in the audio data input / output I / F 305 and supplied to the control unit 310.

  As described above, the HDD 306 includes a relatively large-capacity hard disk, and records various data supplied via the control unit 310 in accordance with the control of the control unit 310. The various data that have been read can be read out and supplied to the control unit 310. As described above, the HDD 306 records an answering message message and various other data.

  The extension / outside line determination unit 307, when an incoming call is received by the own device through the SIP server 10, is a number (extension number) that specifies the destination included in the connection request transmitted from the other party whether the incoming call is an extension or an external line. Number or telephone number). Based on the determination result, the control unit 310 determines whether the incoming call to the own device is an extension line or an external line, for example, through the display controller 308 and the display device 320, or by a ring tone that is emitted by the ringer 304. You can be notified.

  Further, in the terminal device 30 (1) of this embodiment, whether the determination result of the extension / external line determination unit 307 is an extension or an external line, the control unit 310 Information such as the telephone number and name of the other party (calling party) transmitted from the other party can be notified to the user via the display controller 308 and the display device 320.

  Further, the display controller 308 controls the display device 320 in accordance with the control of the control unit 310 so that the display device 320 can display various information according to information from the control unit 310. . The operation input I / F 309 converts information corresponding to various operation inputs received through the keyboard device 330 into data in a format that can be processed by the control unit 310 and supplies the converted data to the control unit 310.

  As described above, the terminal device 30 (1) according to the present embodiment realizes a function as a softphone for performing telephone communication and also an answering machine function and the like by the control unit 310 controlling each unit. To be able to. In FIG. 4, the functions of the packet decomposition / generation unit 302, the answering machine control unit 303, and the extension / outside line determination unit 307 shown by the double-line block are as dedicated circuit portions as shown in FIG. Although it can be configured, it can also be realized as a function of the control unit 310 by a program executed by the CPU 311 of the control unit 310.

[Registration of address information to SIP server]
Next, in the IP telephone system of this embodiment, the SIP server 10 that is positioned in the terminal device 30 (1), 30 (2), 40 (1) that is positioned as a child device of the SIP server 10 and functions as a soft phone. The address information registration process will be described.

  In the case of a terminal device connected to the SIP server 10 such as the terminal devices 30 (1), 30 (2), 30 (3),..., The control unit is connected to the LAN through the I / F 301. 310 detects this, generates a URI, and includes this URI, an IP address previously assigned to the own device, a MAC address of the own device, an extension number assigned to the own device, and a user name. A register request (registration request) is generated, sent to the LAN through the I / F 301, and sent to the SIP server 10.

  In this case, the IP address, extension number, and user name other than the URI are information stored and retained in the nonvolatile memory 314 in advance, and the MAC address is stored and retained in the ROM 312 at the time of manufacture. Information.

  Thus, for example, a register request sent from the terminal device 30 (1) is received through the LAN I / F 103 of the SIP server 10, and is shown in FIG. 3 in the address management DB 104 of the SIP server 10 under the control of the control unit 110. The address information is registered in the manner described above.

  Also, in the case of a terminal device 40 (1) connected to the IP network 100, which is a terminal device functioning as a slave unit of the SIP server 10, the terminal device 30 (1) connected to the LAN basically. The address information is registered in the same manner as described above, but since the terminal device is connected to the IP network 100, the address information is registered through the IP network 100.

  That is, when the terminal device 40 (1) is connected to the IP network 100 through its own I / F 301 and receives a predetermined operation input from a user instructing address registration, the terminal device 40 (1) ) Control unit 310 establishes (connects to) a communication line (communication session) with the SIP server 10 through the IP network 100 using the IP address of the SIP server 10 corresponding to the parent device registered in advance. )

  Then, the control unit 310 of the terminal device 40 (1) generates a URI in the same manner as in the case of the terminal device 30 (1) described above, and the URI, the IP address assigned to the own device, and the own device. A register request (registration request) including the MAC address, the extension number assigned to the own device, and the user name is generated and transmitted to the SIP server 10 in which the communication session is established through the IP network 100.

  Also in this case, the IP address other than the URI, the extension number, and the user name are information stored and held in the nonvolatile memory 314 in advance, and the MAC address is stored and held in the ROM 312 at the time of manufacture. Information.

  Then, the SIP server 10 receives the register request addressed to itself from the terminal device 40 (1), which is a slave unit of the own device, transmitted through the IP network 100 through the IP I / F 101, and controls the SIP server 10. Address information is registered in the address management DB 104 through the unit 110 in the manner shown in FIG.

  In the case of a register request from a general IP telephone terminal that does not belong to the IP telephone system 1, the URI and the IP address are registered in the address management DB of the SIP server 10. In the SIP server 10, for example, the terminal device as the slave device of the own device and the other terminal devices register the slave device information in advance in the SIP server 10, and register requests including this registration information as well. It is also possible to distinguish in the SIP server 10 by forming. In addition, the SIP server 10 can be made distinguishable by making the register request information different between the terminal device as the slave device of the own device and the other terminal devices.

  In this way, the terminals 30 (1), 30 (2), 30 (3),..., 40 (1), etc., which are slave units of the SIP server 10, use the SIP server that is the master unit as its parent device address information. 10 address management DBs 104 can be registered. Other general IP telephone terminals can also register their address information in the address management DB of the SIP server 10 through the IP network 100.

  The SIP server 10 stores the address information registered in its own address management DB 104, the address information of its own slave unit, and the address information of other general IP telephone terminals, such as an extension number or user name. It is possible to manage by distinguishing according to the presence or absence of. Of course, when register requests are received, the register information of the slave unit of the own device and the register requests from other general IP telephone terminals are distinguished, and the classification information that can be distinguished at the time of registration in the address management DB 104 It is also possible to make the distinction by adding and registering. Further, the address information of the own slave unit and the address information of other general IP telephone terminals may be managed by different address management DBs.

[Function of Softphone of Terminal Device of Embodiment]
Next, using the softphone function of the terminal devices 30 (1), 30 (2), and 40 (1) of the IP telephone system 1 according to this embodiment, A process for responding to an incoming call to the own device will be described.

[What happens when you make a call to the intended recipient]
FIG. 5 shows an example of a softphone screen displayed when the softphone program is executed in the terminal devices 30 (1), 30 (2), and 40 (1) of the IP telephone system 1 of this embodiment. It is a figure for demonstrating.

  When making a call from the own device, when the user of the terminal device executes a softphone program by performing a predetermined operation through the keyboard device 330, the control unit 310 is stored and retained in the ROM 312 and the nonvolatile memory 314. Based on the stored information, a softphone screen as shown in FIG. 5 is displayed on the display screen 320G of the display device 320 through the display controller 308.

  The softphone screen shown in FIG. 5 selects a ten-key display G10 for inputting a telephone number or an extension number, and an external line to be used among a plurality of usable external lines (four external lines in this embodiment). Or use the outside line button display G11, G12, G13, G14 for notifying the outside line being used, the outside line display field G15, using the extension, or receiving an extension An extension button display G21 for notification, a display field G22 of an extension partner, and a function button display group G30 including various function button displays such as a hold button display and a redial button display are provided.

  The external line button display G11, G12, G13, G14 and the internal line button display G21 are selected by the user to make a call, or when there is an incoming call, they are displayed in reverse video or in a flashing display. Or to indicate that it is in use. For example, in the case of FIG. 5, the outside line button display G11 is displayed in reverse, indicating that the outside line 1 is in use.

  Therefore, when placing an outside line from the terminal devices 30 (1), 30 (2), and 40 (1) of this embodiment, first, in order to select an outside line to be used from among unused outside lines, The external line button display corresponding to the external line to be selected is selected. For this selection, for example, the pointer is positioned on the target external line button display using a pointing device such as a mouse connected to the terminal device, and the pointer is selected by clicking or associated with each button on the softphone screen. It is selected by operating a key button of a keyboard device.

After selecting the outside line to be used in this manner, the telephone number (10 digits) is displayed by operating the numeric keypad of the numeric keypad display G10 through a pointing device such as a mouse or by operating the key button of the keyboard device associated with the numeric keypad display G10. ). As a result, the control unit 310 forms a connection request for connecting a communication line to a target partner, and the SIP server corresponding to the parent device of the own device through the I / F 301 10 to send.

  As described above, the SIP server 10 uses the function of an external DNS server, for example, to specify the target URI of the destination, and refers to its own address management DB 104 from the specified URI. Specify the target IP address. A connection request is transferred using the identified IP address, and after waiting for a response from the other party, a communication line (call session) is established with the target party so that a call can be made. After the call is finished, a predetermined procedure for transmitting and receiving a disconnection request and a response to the request is performed, and the communication line (call session) is released.

  In this way, the terminal devices 30 (1), 30 (2), and 40 (1) of this embodiment can make a call to a terminal device of another system on the IP network 100 by the softphone function. To be done. As described above, the terminal devices 30 (1), 30 (2), and 40 (1) of this embodiment are not terminals of other systems on the IP network 100, but terminals on the public network 200. However, it is also possible to make a call via the SIP server 10.

  Further, in the terminal devices 30 (1), 30 (2), and 40 (1) of this embodiment, when an extension is to be applied, first, the extension button display G21 is selected. This selection is performed by positioning the display pointer on the extension button display G21 using a pointing device such as a mouse connected to the terminal device and clicking it, as in the case of selection of the outside button display. The user selects a button by operating a key button of the keyboard device associated with each button on the softphone screen.

In this way, after selecting an extension, the numeric keypad of the numeric keypad display G10 is operated through a pointing device such as a mouse or by operating a key button of a keyboard device associated with the numeric keypad display G10, for example, an extension number (for example, three digits). (Or 4 digits). As a result, the control unit 310 forms an extension connection request for connecting a communication line to the target slave unit in its own system, and this is transmitted through the I / F 301 to the master unit of its own unit. To the SIP server 10 corresponding to

  When the SIP server 10 receives the extension connection request, it relays this to all the slave units in its own system. Here, all the slave units in the own system mean all the slave units in the own system registered in the address management DB 104, and the terminal devices 30 (1), 30 (2), 30 connected to the LAN through the HUB 20. (3)... As well as the slave unit 40 (1) on the IP network 200 is included.

  Then, after waiting for a response from the other party, a communication line (call session) is opened with the target party so that a call can be made. After the call is finished, a predetermined procedure for transmitting and receiving a disconnection request and a response to the request is performed, and the communication line (call session) is released.

  In this way, the terminal devices 30 (1), 30 (2), and 40 (1) of this embodiment can make an extension call to any terminal device in the own system by the softphone function. Be made possible. Therefore, for example, even from the terminal device 40 (1) that is a terminal device installed at the home of a telecommuting employee, the terminal device 30 (1) that is LAN-connected to the SIP server 10 through the HUB 20, 30 (2), 30 (3),... Can be connected by connecting a closed extension call line in the IP telephone system 1 to make an extension call. In this case, it is an extension call, and the telephone company system is not used at all, so there is no call cost.

  Here, the description has been given assuming that there are four usable external lines. In other words, the terminal devices 30 (1), 30 (2), 30 (3),..., 40 (1) as slave units of the IP telephone system 1 can be used with four external lines with different telephone numbers. Has been. Therefore, each terminal device 30 (1), 30 (2), 30 (3),..., 40 (1) stores and stores different external telephone numbers in the non-volatile memory 314 and assigns them to the own device. It can be recognized as an outside line number.

[Processing when answering incoming calls to your device]
Next, processing when responding to an incoming call to the own device will be described. As described above, since the SIP server 10 only manages so-called calls, even if it is an incoming call to a child device connected to the own device, the SIP server 10 does not control only the child device. A connection request is sent to all the slave units in the system.

  As described above, the softphone program is executed in the terminal devices 30 (1), 30 (2), and 40 (1) of the IP telephone system 1 of this embodiment, and the softphone as shown in FIG. When the screen is displayed, if there is an incoming call to an own line or an extension, the extension / outside line discriminating unit 307 functions in each terminal device and designates the destination included in the connection request. Based on the number of digits of the number (extension number or telephone number), it is determined whether the incoming call is an internal line call or an external line call.

  That is, the extension / outside line determination unit 307 determines that the incoming call to this machine is an extension incoming call when the number specifying the destination included in the connection request is 3 digits or 4 digits. to decide. In addition, when the number specifying the destination included in the connection request is 10 digits, the extension / outside line determination unit 307 determines that the current incoming call to the own device is an external call.

  When the extension / outline determination unit 307 determines that the incoming call is an incoming call, the control unit 310 controls the display controller 308 to display the external line buttons G11, G12, In G13 and G14, the outside line button display corresponding to the used outside line is highlighted or blinked, and the ringer 304 is controlled to emit a ringing tone, thereby confirming that there is an outside line incoming call. Notify the user.

  Also, in this case, when the caller is also an IP phone terminal, the connection request from the caller includes information such as the caller's telephone number and user name, so the control unit 310 can The caller's telephone number and user name are extracted from the addressed connection request and supplied to the display controller 308 so as to be displayed in the display field G15 of the outside line on the softphone screen.

  In the case of a connection request from a telephone terminal or mobile phone terminal installed and used in a conventional home connected to the public network 200, information such as a telephone number of the caller is added. Can be displayed in the display field G15 of the other party on the outside line of the softphone screen.

When the extension / outline determination unit 307 determines that the extension is incoming , the control unit 310 controls the display controller 308 and reverse-displays the extension button display G21 on the softphone screen shown in FIG. In addition, the user is notified that there is an incoming call by controlling the ringer 304 to emit a ringtone.

  Further, in this case, it is an extension connection request, and by including information such as the extension of the transmission source and the user name in the connection request, the control unit 310 makes a call from the extension connection request addressed to itself. The original extension number and the user name are extracted and supplied to the display controller 308 so as to be displayed in the display field G22 of the outside line on the softphone screen. That is, in the case of an extension, each terminal device 30 (1), 30 (2), 40 (1) is a user registered in advance in the non-volatile memory 314 of the own device, for example, by the function of the control unit 310. An extension connection request including a name can be formed and sent.

  When responding to an incoming call, by performing a predetermined off-hook operation, a response to the connection request can be transmitted, and a call can be made by connecting a communication line (communication session). To be done. The predetermined off-hook operation may be, for example, an operation of off-hooking the operation of picking up the handset when the handset connected to the own device is picked up and the control unit 310 is notified of this. it can. Further, on the softphone screen, an off-hook operation is performed when an external button display or an internal line button display that is highlighted or blinked is selected, or when a predetermined operation is performed through the keyboard device 330. It is also possible to judge.

  In addition, the control unit 310 controls the ringer 304 so that the ring tone itself is different between the incoming call and the incoming call, or the sound emission pattern is changed without changing the tone of the ring tone. For example, it is possible to notify whether the incoming call is an outside line call or an extension line call by the ring tone.

  As described above, in each of the terminal devices 30 (1), 30 (2), and 40 (1) positioned as slave units of the SIP server 10 of this embodiment, when there is an incoming call to the own device, Each terminal can appropriately determine whether the incoming call is an incoming call or an incoming call, and can notify the user of this. If the incoming call notification includes the caller's telephone number or user name (such as name or company name), this can be notified.

  Also, since the answering machine function is also realized for each terminal device, the answering machine function can be flexibly used for each terminal device without increasing the addition of the SIP server 10.

[Summary of incoming call processing at terminal device]
Next, in the IP communication system of this embodiment, the incoming call processing in the terminal devices 30 (1), 30 (2), and 40 (1) functioning as softphone devices will be described with reference to the flowchart of FIG. . The process shown in FIG. 6 is performed when the terminal device 30 (1), 30 (2), 40 (1) of the IP telephone system according to this embodiment in which the softphone program is activated is in a so-called waiting state. Is to be executed. Here, in order to simplify the description, the operation of the terminal device 30 (1) will be described.

  When the terminal device 30 (1) is turned on and the softphone program is executed, the control unit 310 executes the incoming call process shown in FIG. The control unit 310 monitors a signal transmitted via the SIP server 10 and determines whether there is an incoming call including an outside line number or an extension number assigned to itself (step S1).

  If it is determined in step S1 that there is no incoming call to the own device, the processing from step S1 is repeated to wait for the incoming call to the own device. If it is determined in step S1 that there is an incoming call including an external line number or an extension number assigned to the own device, that is, if it is determined that there is an incoming call to the own device, the control unit 310 performs the extension / external line. The determination unit 307 is controlled to determine whether the incoming call is an outside line based on the number of digits of the number that specifies the destination included in the incoming call (connection request) (step S2). Specifically, if the number specifying the destination included in the incoming call (connection request) is 10 digits, it is determined that the incoming call is an external line incoming call. If the number to be specified is 3 digits or 4 digits, it is determined that the incoming call is not an incoming call but an incoming call.

  When it is determined in step S2 that there is an incoming call to the own device, the control unit 310 controls the display controller 308 and the ringer 304, and as described above, an external line button for the used external line. The display is highlighted or blinked, and the other party's telephone number, user name, etc. are displayed in the external party's destination display field G15, and at the same time, a ring tone is emitted from the ringer 304 (step). S3). It should be noted that information such as the telephone number and user name of the other party displayed in the display field G15 of the outside party is included in the received incoming call information.

  If it is determined in step S2 that there is an extension incoming call to the own device, the control unit 310 controls the display controller 308 and the ringer 304 to invert the extension button display G21 as described above. In addition to displaying or flashing, the extension number or user name of the other party is displayed in the extension partner display field G22, and at the same time, a ring tone is emitted from the ringer 304 (step S4). Note that information such as the extension number and user name of the destination displayed in the extension destination display field G22 is included in the received incoming call information.

  After the processing of step S3 or step S4, the control unit 310 confirms the setting information of the answering machine control unit 303 and determines whether or not the answering machine function is set to operate (the answering machine function is turned on). (Step S5).

  When it is determined in step S5 that the answering machine function is set to operate, the control unit 310 uses the function of the answering machine control unit 303 or in cooperation with the answering machine control unit 303. As described above, (1) Automatic incoming call → (2) Sending message notifying that answering machine function is being operated → (3) Receiving answering machine message from partner and to HDD 306 An answering machine recording process in a series of answering machine functions such as recording of the answering machine is executed (step S6), and thereafter, the process from step S1 is repeated.

  If it is determined in step S5 that the answering machine function is not set to operate, control unit 310 performs a predetermined off-hook operation (operation for responding to an incoming call) as described above. It is determined whether it has been received (step S7).

  When it is determined in step S7 that the predetermined off-hook operation has been performed, a response is transmitted to the incoming call, the communication line (communication session) is connected, the call can be performed, and the call ends. In this case, a series of call processing until the communication line (communication session) is released is executed (step S8), and thereafter, the processing from step S1 is repeated.

  If it is determined in step S7 that the predetermined off-hook operation has not been performed, the processing from step S1 is repeated. That is, since the off-hook operation is not performed, the incoming call notification for which the off-hook operation is performed is continuously performed while the caller is transmitting the connection request.

  Thus, each of the terminal devices 30 (1), 30 (2), and 40 (1) of the IP telephone system 1 of this embodiment has its own function ( According to the function of the slave unit, the outside line / extension line is determined and clearly notified to the user, and the answering machine function can be individually realized for each slave unit.

  In the case of the IP telephone system 1 of this embodiment, not only a terminal device connected to the SIP server 10 at a relatively short distance by, for example, a LAN but also a terminal device that exists remotely. By connecting to the SIP server 10 via the IP network 100, it is possible to make an extension call between terminal devices connected to the SIP server 10 as slave units without discrimination between short distance and remote. To be done.

[Others]
In the above-described embodiment, the case where there are three terminal devices connected via LAN to the SIP server 10 and one terminal device connected through the IP network 100 has been described as an example. This is not a limitation. The number of terminal devices connected via LAN and the number of terminal devices connected via the IP network 100 are not particularly limited, and it is possible to connect an appropriate number of terminal devices determined according to the processing capability of the SIP server 10. Is possible.

The external telephone number is not assigned to each terminal device in the IP telephone system 1, but is assigned to each IP telephone system, that is, to the SIP server 10 in the IP telephone system. The child device is a terminal device to which a common external telephone number is assigned.

  In addition, only one external telephone number is not assigned to each IP telephone system, but as described above, a plurality of external telephone numbers are assigned by the contract with the telephone company, and the plurality of external telephone numbers are assigned. It can also be used.

  In the above-described embodiment, the case where only one system is connected to the SIP server 10 via LAN has been described as an example. However, the present invention is not limited to this. Of course, it is possible to connect a plurality of LAN connection systems to the SIP server 10.

  Further, as described above, in each of the terminal devices 30 (1), 30 (2), and 40 (1) in the IP telephone system 1, the softphone function is realized by starting the softphone program. I made it. As described above, since the softphone function is realized by a program, the expansion of the function can be flexibly handled by changing the softphone program to be executed. In addition, by using a different softphone program for each terminal, a different softphone function can be realized for each terminal device.

  For example, the display contents can be changed for each terminal device. Therefore, for example, the terminal device installed in the same building and the terminal device installed and used at home for telecommuting are made to display differently, and the terminal device installed and used at home is used. For example, it is possible to prevent unnecessary information such as the name of the other party from being displayed.

  Further, since the terminal device as the slave unit of the SIP server 10 can determine the extension line and the external line and notify the user of this, there is no need for an optional unit for extension connection or external line connection. The IP telephone terminal can be realized at low cost, and the manufacturer does not need to hold an optional unit for extension connection or extension connection for a long period of time for maintenance.

  Basically, if a program for realizing a function as a SIP user agent or a softphone program is installed, the user logs in through the IP network from anywhere and uses it as a slave in the IP telephone system 1 be able to. That is, as long as it can be connected to the IP network, it is possible to use outgoing calls, incoming calls, and extension calls from the IP telephone system 1 from anywhere.

  Also, since the answering machine function can be realized for each terminal device, the message content can be managed for each terminal device, and can be used as a highly confidential answering machine function.

  Note that the softphone function does not function when the terminal devices 30 (1), 30 (2), 40 (1), etc., which are personal computers, are not operating. By registering in the server 10, it is possible to enhance the function of the SIP server 10 so as to transfer the extension incoming call to the user's portable information terminal.

  Further, as a measure against power failure, by making it possible to connect a fixed telephone to the analog line board mounted on the SIP server 10, telephone communication through the public network can be performed using the fixed telephone. Even during a power outage, it is possible to secure a communication path using an analog line.

It is a figure for demonstrating the whole structure of the IP telephone system with which one Embodiment of the system of this invention was applied. 2 is a block diagram for explaining an example of the configuration of a SIP server 10. FIG. It is a figure for demonstrating the structural example of the management information (database) formed in address management DB104. 3 is a block diagram for explaining an example of the configuration of a terminal device connected as a slave to the SIP server 10. FIG. It is a figure for demonstrating an example of the softphone screen displayed when a softphone program is performed in the terminal device 30 (1). It is a flowchart for demonstrating the incoming call process performed when it is in the state of waiting for an incoming call in the terminal device 30 grade | etc., With which the softphone program was started.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 2 ... IP telephone system, 10 ... SIP server, 20 ... HUB, 30, 40 ... Terminal device, 101 ... IPI / F, 102 ... Packet disassembly / generation part, 103 ... LAN I / F, 103a ... I / O terminal, 104 ... Address management DB, 105 ... Public network I / F, 110 ... Control unit, 111 ... CPU, 112 ... ROM, 113 ... RAM, 114 ... CPU bus, 301 ... I / F, 302 ... Packet decomposition / generation unit, 303: Answering machine control unit, 304 ... Ringer, 305 ... Voice data input / output I / F, 306 ... HDD, 307 ... Extension / outer line discrimination unit, 308 ... Display controller, 309 ... Operation input I / F, 310 ... Control unit 311 ... CPU, 312 ... ROM, 313 ... RAM, 314 ... nonvolatile memory, 315 ... CPU bus

Claims (5)

Address information that manages one or more IP (Internet Protocol) telephone lines and / or public telephone lines, and is connected to at least an IP network and manages address information about a terminal device that may be called through its own device. A server apparatus comprising a management means , and external server communication and extension communication between the one or more IP telephone lines and / or public telephone lines registered in the address information management means of the server apparatus. It consists of a plurality of slave units performed through
The slave is connected to the server device through the IP network or LAN (Local Aria Network),
Each of the slaves is
Registration means for registering address information of the own device with respect to the server device;
When receiving an incoming call through the server device, based on the number of digits of the number notified at the time of the incoming call, an identification means for identifying whether the incoming call is from an outside line or an incoming line ,
Based on the identification result of the identification means, a display capable of distinguishing between an external line and an internal line is performed, and a slave unit connected to the server device through the IP network and a slave unit connected to the server device through the LAN And an IP telephone system comprising display control means for controlling the display mode of information related to the other party to be different . Address information that manages one or more IP (Internet Protocol) telephone lines and / or public telephone lines, and is connected to at least an IP network and manages address information about a terminal device that may be called through its own device. An IP which is registered in the address information management means of the server apparatus having the management means and performs external line communication and mutual extension communication through the one or more IP telephone lines and / or public telephone lines via the server apparatus. A handset device of a telephone system,
Connected to the server device through the IP network or LAN (Local Aria Network),
Registration means for registering address information of the own device with respect to the server device;
When receiving an incoming call, based on the number of digits of the number notified at the time of the incoming call, an identification means for identifying whether the incoming call is from an outside line or an incoming line ,
Based on the identification result of the identification means, a display capable of distinguishing between an external line and an internal line is performed, and a slave unit connected to the server device through the IP network and a slave unit connected to the server device through the LAN And a display control means for controlling the display mode of information related to the other party to be different from each other . It is a subunit | mobile_unit apparatus of the IP telephone system of Claim 2, Comprising:
When calling an extension, it has a means to add the name of the user of the user's own machine and make a call ,
When the identification means identifies that the incoming call to the own device is an extension, the display control means of the slave connected to the server device via the IP network uses the name of the caller included in the incoming call information. do not displayed on the display device, the display control unit of the slave unit connected to said server apparatus via the LAN, and characterized in that to display the name of the source included in the incoming call information to the display device The IP phone system slave unit. It is a subunit | mobile_unit apparatus of the IP telephone system of Claim 2 , Comprising:
An answering machine that automatically responds to an incoming call to its own device according to a setting by a user, connects a communication line through the server device, and sends a message notifying that the answering machine is operating to the other party. Means,
A slave unit of the IP telephone system, comprising: a storage unit that records and holds a voice message from the other party transmitted through the connected communication line. Address information that manages one or more IP (Internet Protocol) telephone lines and / or public telephone lines, and is connected to at least an IP network and manages address information about a terminal device that may be called through its own device. An IP which is registered in the address information management means of the server apparatus having the management means and performs external line communication and mutual extension communication through the one or more IP telephone lines and / or public telephone lines via the server apparatus. A communication processing program that is executed by a computer mounted on a handset device of a telephone system,
The slave device is connected to the server device through the IP network or LAN (Local Aria Network), and includes a communication unit for performing communication through the server device,
A registration step of registering address information of the own device with respect to the server device;
When receiving an incoming call to the own device via the communication means, identification means, based on the number of digits of the number to be notified when the incoming or inbound from external, and identification step of identifying whether incoming from extension ,
Based on the identification result in the identification step, the external line and the internal line are displayed in a distinguishable manner, and the slave unit connected to the server device through the IP network and the slave unit connected to the server device through the LAN A computer-readable communication processing program that executes a display control step controlled by a display control means so as to change a display mode of information related to a partner .

Images