JP3528709B2 - Key telephone equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone device used in a small office or the like.

[0002]

2. Description of the Related Art Small Office
e) and private offices (Home Offices) are equipped with key telephone devices, and each office worker uses the key telephone assigned to him / her to talk with the other party and perform business. There is.

[0003]

In recent years, with the spread of personal computers and the Internet, even in the above-mentioned small offices and private offices, it is desired that the personal computers access the Internet via a telephone line and connect to the Internet. It is considered to perform business by performing data communication with the other party. Here, a desire to access and use the button telephone device capable of calls to the Internet in a small office and personal office was cattle this has occurred.

Therefore, an object of the present invention is to enable data communication with a desired destination by accessing an external network such as the Internet using a key telephone device capable of making a call.

[0005]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention provides a button telephone device capable of making a call by a button telephone, a plurality of PHS master devices, and a plurality of PHS master devices each of which is always wireless. Multiple PHS slaves connected,
A plurality of extension terminals that are respectively connected to a plurality of PHS handset units and perform data communication via the PHS handset units are provided, and the main unit of the key telephone device is connected to a line termination circuit to make a call to an ISDN line. It is connected between the terminal adapter that controls the incoming call and transfers the voice signal and the data of the extension terminal, and the terminal adapter and the communication path switch, and the data of the extension terminal is according to the destination address included in this data. Side and extension terminal side, a router for transferring to one of the extension terminal side, and a control unit for controlling a communication path switch during data communication of the extension terminal and forming a path between the PHS master device corresponding to the extension terminal and the router. is there.

In this case, a personal computer and a server are provided as extension terminals. Also, different private addresses are given to the personal computer and the server. The terminal adapter responds to the incoming call to the ISDN line, and the control unit controls the call path switch to form a path between the PHS master device and the router corresponding to the server, and to connect the terminal adapter and the router. By controlling it, the data arriving at the ISDN line after answering the incoming call is stored in the server. Further, the router adds a global address to the data and transfers the data to the terminal adapter when the address different from the private address is added to the data as the destination address during the communication of the data of the personal computer. The set dial number is transmitted to the ISDN line, and after the response to the transmission is detected, the transferred data is transmitted to the ISDN line. If a private address is added as a destination address during communication of data from a personal computer, the router transfers the data from the personal computer to an extension terminal according to the private address. Also,
The data stored in the server is transmitted to the personal computer side and the ISDN line side.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 6 is a block diagram showing the configuration of the key telephone device according to the present invention. The key telephone device 1 shown in FIG. 6 is installed in a small office or a home office and is capable of making a call and accessing the internet 2.

In FIG. 6, the main unit 11 of the key telephone unit 1 accommodates an ISDN line which is a digital line, and the accommodated ISDN line is connected to a digital exchange (not shown). Further, each extension terminal, which will be described later, in the key telephone device can access the Internet 2 via the ISDN line, the digital exchange, and a provider (connection provider) not shown. In addition, each extension terminal of the key telephone device has a PHS base station 3 connected to the Internet 2 and a PHS handset 4A wirelessly connected to the base station 3.
It is possible to perform data communication with the personal computer 5A1 through 1.

In the main unit 11 of the key telephone unit, an IS
Line termination circuit (hereinafter, DSU) that terminates the DN line 1
2. A terminal adapter (hereinafter referred to as TA) 13 that has a call originating / receiving function and transmits / receives data including voice,
A remote router that delivers the data from the accommodated extension terminal to another accommodation extension terminal or the ISDN line side according to its destination address and also delivers the data from the ISDN line to the accommodation extension terminal according to the destination address (hereinafter, Router) 14 etc. are provided.

In addition, the main device 11 accommodates G3FAX31 and G4FAX32 for performing facsimile communication as the extension terminals, and the intercom 33 and the electric lock 34 can be connected. In addition, the main device 11 includes a digital wired cordless handset (digital button telephone) 61 capable of calling.
A to 61D are accommodated as the extension terminals,
The PHS master devices 81A to 81D are housed. And each P
PHS cordless handsets 4A2-4A5 are included in the HS master handsets 81A-81D.
Is wirelessly connected. Of the PHS slaves 4A2-4A5 wirelessly connected to the PHS masters 81A-81D, the PHS slaves 4A3 and 4A5 connected to the personal computer are PIAFS.
(PHS Internet Access Foru
It is called a m Standard handset and has 64 kbps (2 slots x 2) that has doubled or quadrupled the number of slots, for example.
32 kbps) or 128 kbps (4 slots x 32 k)
data communication with a transmission rate of bps) is possible,
A large amount of data can be sent and received per unit time.

Here, the PHS master 81A, a first group consisting of the PHS slave 4A2 wirelessly connected thereto and the personal computer 5A2 connected to the slave 4A2, and the PHS master 81B wirelessly connected thereto. A second group of PHS slaves 4A3 and a personal computer 5A3 connected to the slaves 4A3 and accommodating the scanner 6, and a PHS master 81D,
PHS cordless handset 4A5 and cordless handset 4A5 wirelessly connected to this
A wireless LAN is formed by a third group of servers 7 that are connected to the
The PHS master 81 in the AN and the corresponding PHS slave 4 are always connected. The addresses of the personal computers 5A2, 5A3 and the server 7, which are extension terminals forming the wireless LAN, are private addresses, and the personal computers 5A2, 5A3 and the server 7 in the wireless LAN are private addresses.
And the private addresses are also set in the router 14 in the main device 1. In addition to the private address of each extension terminal forming the wireless LAN, the address of the key telephone device is set as a global address in the router 14.

Therefore, in the main unit 11, for example, PH
When the personal computer 5A2 connected to the S cordless handset 4A2 performs data communication via the ISDN line, the router 14 converts the private address of the personal computer 5A2 into a global address, together with the data from the personal computer 5A2 (data including the destination address). While sending to the Internet 2 side, when an incoming call for the purpose of data communication arrives at the ISDN line, the router 14 receives the data via the ISDN line after the incoming call response by the TA 13 and the PHS master unit 8
By transmitting from 1D to the PHS handset 4A5, the PH
The received data is stored in the server 7 connected to the S slave 4A5. Further, when the personal computer 5A2 connected to the PHS slave device 4A2 sends a command with the address (private address) of the server 7 added as the destination address in order to retrieve the stored data addressed to itself, the main device 11 sends the PHS slave device 4A2. PHS base unit 81A, router 14,
Via the route of PHS base unit 81D and PHS slave unit 4A5,
Connect the personal computer 5A2 and the server 7 to the personal computer 5A2
Is allowed to retrieve data from the server 7.

Further, in the main unit 11, when an outside line dial transmission operation is performed in, for example, the digital cable slave unit 61A, the operated dial number is sent to the TA 13, and T
The A13 dials the dialed number to the ISDN line side, whereby the other party can talk.
Further, when an incoming call for the purpose of a call arrives at the accommodated ISDN line, the main device 11 causes the extension terminal of the call such as the digital wired cordless handset 61 to ring, and a response to the incoming call of the digital wired cordless handset is detected. Then, the TA 13 responds to the incoming ISDN line. This enables the incoming call response call of the digital wired cordless handset 61. Furthermore, for example, when the digital wired cordless handset 61A performs a call operation to the digital wired cordless handset 61D, the main device 11 causes the digital wired cordless handset 61
When an extension call is made to D and a response operation of the digital wired cordless handset 61D is detected, an extension telephone call is realized by connecting the call path between the digital wired cordless handset 61A and the digital wired cordless handset 61D.

In addition to this, the main unit 11 is a PHS master unit 81C.
The PHS slave unit 4A4 connected to the PHS slave unit 4A4 enables external and internal calls, and enables access to the intercom 33 and the electric lock 34 of the PHS slave unit 4A4 and the digital wired slave unit 61.
Facsimile communication is possible via the SDN line.

FIG. 2 is a block diagram showing the configuration of the digital wired slave device 61 connected to the main device 11. The digital wired cordless handset 61 receives the electric power supplied from the main device 11 side and supplies it to each part of the digital wired cordless handset 61.
From the main unit 11, an extension I / F (extension interface) 63, a transmission unit 64 including a composite codec for transmitting and receiving voice and control data to and from the main unit 11 side and separating voice and control data (command). When the control data is received, it is displayed on the display unit 63 and the like, the contact information of the connected hook switch 67 is transmitted to the main unit 11 as on-hook or off-hook information, and the operation information of a dial key (not shown) is transmitted to the main unit 11. C to send to
A PU 65, a microphone 68 that outputs a transmission signal, a gain adjustment unit 69 that adjusts the gain of the transmission signal, a handset 70 that is a handset, and an amplifier 71 that amplifies the reception signal from the main device 11 side. , And a speaker 72 for transmitting a reception signal.

When the off-hook and dial key depression operation is performed on the cordless handset 61, the CPU 65 of the digital wired cordless handset 61 detects this information and outputs it to the transmitter 64 so that the transmitter 64 outputs the information. The transmission operation information is transmitted to the main device 11 side via the extension I / F 63. As a result, the TA 13 of the main device 11 makes a dial call as described above, and as a result, the other party is called. When the other party answers the call, the child device 6
A call is started between 1 and the other party. In this case, the voice of the other party via the main unit 11 converted into an analog signal by the transmission unit 64 is amplified by the amplifier 71 and sent to the speaker 72 or the receiving unit side of the handset 70, while being transmitted by the microphone 68 or the handset 70. The voice on the handset 61 side sent from the talk section is adjusted by the gain adjusting section 69 and converted into a digital signal by the transmitting section 64 to be transmitted to the main unit 1.
It is transmitted to the 1 side.

FIG. 3 is a block diagram showing the configuration of the PHS master device 81 connected to the main device 11. PHS base unit 81
Is a power supply unit 82 for supplying power supplied from the main device 11 side to each unit of the digital wired slave device 61, and an extension I.
/ F (extension interface) 83, while transmitting and receiving data and commands including voice with the main device 11 side,
A transmission unit 84 including a composite codec for separating voice, data and commands, and a main unit 11 by controlling the transmission unit 84.
And a CPU 85 for transmitting the voice, data and command from the PHS slave unit 4 side to the voice, data and command from the PHS slave unit 4 side to the main unit 11 side.

In addition, the PHS base unit 81 has a DTEI /
F86, system control unit 87, ARQ (Automat)
ic Repeat Request) Control Unit 88, P
/ S command I / F control unit 89, CPU 90 for controlling transmission with the PHS slave unit 4, ADPCM codec 9
1, timing generation unit 92, channel codec 93,
A modem 94 and a wireless unit 95 are provided.

The system control section 87 sends data and commands from the main unit 11 side via the transmission section 84 to the DTEI / F.
When it is received at 86, it controls the ARQ control unit 88 and the P / S command I / F control unit 89 to make the P / S command I / F.
Data and command are separated from the F control unit 89 and ADPC
Output to the M codec 91. Further, when the PHS command I / F control unit 89 receives the data and command from the PHS slave unit 4 separated by the ADPCM codec 91, the ARQ control unit 88 and the DTEI / F86.
The data and command are combined from the DTE I / F 86 and sent to the transmission unit 84.

On the other hand, the CPU 90, which controls the transmission to and from the PHS slave unit 4, controls the channel codec 93 and the modem 94 in synchronization with the timing of the timing generation unit 92, thereby transmitting the transmission unit 84 and the P / S command. I / F
The data including the voice from the control unit 89, the speed of which is converted to 32 kbps by the ADPCM codec 91, is sent to the modem 94 via the channel codec 93, and the wireless unit 9 outputs the modulated data as modem data from the modem 94.
Send to 5. The wireless unit 95 transmits this modulated data as a wireless signal to the PHS handset 4 via the antenna. Further, the CPU 90 synchronizes with the timing of the timing generation unit 92 and the modem 94 and the channel codec 9
3 by controlling P.3 via the wireless unit 95.
Data from the HS slave unit 4 is demodulated by the modem 94, and this demodulated data is ADd via the channel codec 93.
It is sent to the PCM codec 91. The ADPCM codec 91 separates this demodulated data into voices, data and commands, and sends the voices to the transmission section 84 and the data and commands to the P / S command I / F control section 89 side. In this way, the PHS master device 81 transmits the voice, data and command from the PHS slave device 4 side to the main device 11 side and transmits the voice, data and command from the main device 11 side to the PHS slave device 4 side. Send.

FIG. 4 is a block diagram showing a configuration of a PHS slave unit 4-1 which is connected to the personal computer 5 and the server 7 and wirelessly connected to the PHS master unit 81. PHS cordless handset 4
-1 is a PCMCIA (Personal Computer) as an interface with the personal computer 5 and the server 7.
Memory Card International
DTEI having a standard of (1 Association)
/ F41 is provided. In addition, PHS cordless handset 4-1
System control unit 42, ARQ control unit 43, P / S
A command I / F control unit 44, a CPU 45 for controlling transmission with the PHS master device 81, an ADPCM codec 46,
A microphone 47, a speaker 48, a timing generator 49, a channel codec 50, a modem 51, and a wireless unit 52 are provided.

In the system control unit 42, the data and commands sent from the personal computer 5 or the server 7 are D
When received by the TE I / F 41, the ARQ control unit 43 and the P / S command I / F control unit 44 are controlled to separate the data and the command from the P / S command I / F control unit 44, and to the ADPCM codec 46. Output. Also, AD
PHS parent device 81 separated by PCM codec 46
When the data and the command from the side are received by the P / S command I / F control unit 44, the ARQ control unit 43 and the DT
The EI / F 41 is controlled so that the DTEI / F 41 sends the data including the data and the command to the personal computer 5 or the server 7.

On the other hand, the CPU 45, which controls the transmission to and from the PHS master 81, controls the channel codec 50 and the modem 51 in synchronization with the timing of the timing generation section 49, and thereby the microphone 47 and the P / S command I. /
The data including the voice from the F control unit 44, the speed of which is converted to 32 kbps by the ADPCM codec 46, is sent to the modem 51 via the channel codec 50, and the wireless unit 5 outputs the modulated data from the modem 51.
2 to send. The wireless unit 52 transmits this modulated data as a wireless signal to the PHS master device 81 via the antenna. Further, the CPU 45 controls the modem 51 and the channel codec 50 in synchronization with the timing of the timing generation unit 49 to demodulate the data from the PHS master device 81 via the wireless unit 52 by the modem 51, and the demodulated data to the channel. It is sent to the ADPCM codec 46 via the codec 50. ADPCM
The codec 46 separates this demodulated data into voices, data and commands, and sends the voices to the speaker 48 and the data and commands to the P / S command I / F control unit 44. As a result, the voice from the PHS base unit 81 side is transmitted from the speaker 48, and the data and the command are sent to the DTEI / F4.
1 is transmitted to the personal computer 5 side. In this way
The PHS slave device 4-1 transmits data and commands from the PHS master device 81 side to the personal computer 5 or the server 7 side, and also transmits data and commands from the personal computer 5 or server 7 side to the PHS master device 81 side.

FIG. 5 is a block diagram showing the configuration of a PHS slave unit 4-2 which is connected to the personal computer 5 and the server 7 and wirelessly connected to the PHS master unit 81. P shown in FIG.
The HS slave unit 4-2 is a DTEI / F having an RS232C standard as an interface with the personal computer 5 and the server 7.
55 is provided. In addition, the PHS slave unit 4-2 has a system control unit 4 similar to the slave unit 4-1 shown in FIG.
2, ARQ control unit 43, P / S command I / F control unit 4
4. CPU4 for controlling transmission with PHS master 81
5, ADPCM codec 46, timing generation unit 4
9, a channel codec 50, a modem 51, and a wireless unit 52 are provided.

In the system control unit 42, the data and commands sent from the personal computer 5 or the server 7 are D
When received by the TE I / F 55, it controls the ARQ control unit 43 and the P / S command I / F control unit 44 to separate the data and the command from the P / S command I / F control unit 44, and to the ADPCM codec 46. Output. Also, AD
PHS parent device 81 separated by PCM codec 46
When the data and the command from the side are received by the P / S command I / F control unit 44, the ARQ control unit 43 and the DT
The EI / F 55 is controlled so that the DTEI / F 55 sends the combined data and command data to the personal computer 5 or the server 7.

On the other hand, the CPU 45, which controls the transmission to and from the PHS master 81, controls the channel codec 50 and the modem 51 in synchronization with the timing of the timing generator 49, thereby controlling the P / S command I / F. The data from the section 44 is 32 kb by the ADPCM codec 46.
Channel codec 5
It is sent to the modem 51 via 0, and is sent from the modem 51 to the wireless unit 52 as modulated data. The wireless unit 52 transmits this modulated data as a wireless signal to the PHS master device 81 via the antenna. Also, the CPU 45
Controls the modem 51 and the channel codec 50 in synchronization with the timing of the timing generation unit 49 to demodulate the data from the PHS master device 81 via the wireless unit 52 by the modem 51 and transmit the demodulated data to the channel codec 50. To the ADPCM codec 46 via The ADPCM codec 46 separates this demodulated data into data and commands, and sends them to the P / S command I / F control unit 44. As a result, the data and command from the PHS base unit 81 side are transmitted to the personal computer 5 side via the DTEI / F55. In this way, P
The HS child device 4-2 transmits the data and command from the PHS parent device 81 side to the personal computer 5 side, and
The data and the command from the side are transmitted to the PHS base unit 81 side.

FIG. 1 is a block diagram showing a detailed configuration of the main unit 11 of the key telephone device shown in FIG. Main device 1
1 includes DSU 12, TA 13, router 14 shown in FIG.
In addition to the above, a control unit 15 for controlling the entire main device 11 and a time division multiplex communication path switch (hereinafter, communication path switch) 16
And a transmission circuit 18 that performs ping-pong transmission of data with the digital wired slave device 61 and the PHS master device 81. Then, the transmission circuit 18 and the digital wired slave device 61
Or a PHS parent device 81 and a digital wired child device 61 or P
Extension circuit 1 for supplying power to the HS master 81
9 is provided.

Here, the telephone line switch 16 is connected with two single telephone interfaces 22 via a codec 20, a two-line / four-line conversion circuit 21, and a transformer T, respectively. The above-mentioned G3 FAX 31 is connected to one single telephone interface 22, and the single telephone 35 is connected to the other single telephone interface 22. G3FA
Calling and receiving of X31 and the independent telephone 35 are controlled by the control unit 15. Also, the T connected to the call path switch 16
For the analog port A of A13, P from the ISDN line
PB receiver 23 for receiving the B signal, hold tone circuit 24 for sending a hold tone to the ISDN line when the ISDN line is on hold, BT detection circuit 25 for detecting BT (busy tone) from the ISDN line, partner via the ISDN line A recording / reproducing unit 26 for recording the message and reproducing the recorded message for sending to the digital wired slave device 61 is connected, and these units are controlled by the control unit 15.

An intercom / electric lock interface 27 is connected to the control unit 15, and the control unit 15 controls the interface 27 based on a control signal from the digital wired handset 61 side to respond to a call from the intercom 33 or to generate an electric lock. Open and close. Also, a setting unit 28 is connected to the control unit 15, and the control unit 15 reads out the setting data of the apparatus set in the setting unit 28 by the personal computer 5 and controls according to this setting data. A B channel control unit 23 that controls the ISDN B channel is provided between the router 14 and the communication path switch 16, and the B channel control unit 2 is provided.
Under the control of the control unit 3, 3 controls whether or not to allocate two ISDN B channels for data of one extension terminal. Here, since one B channel of ISDN has a data communication rate of 64 kbps, when two B channels are allocated, data communication becomes possible at a rate of 128 kbps, and a large amount of data can be transmitted / received per unit time.

The operation of the key telephone device will be described in detail with reference to the block diagram of FIG. (1) Outside line call (call through ISDN line) For example, when an outside line calling operation is performed in the digital wired cordless handset 61A, this operation data is received by the transmission circuit 18 via the extension line circuit 19. When this operation data is input from the transmission circuit 18, the control unit 15 controls the call path switch 16 to connect the call path between the digital wired slave device 61A and the corresponding ISDN line, and sends the dial number as the operation data to the TA 13. By causing the TA 13 to execute a predetermined calling protocol by the TA 13, the dial number is transmitted from the TA 13. As a result, when the other party is called according to this dial number and the other party answers, the digital wired slave device 61A causes the other party to make a call via the extension circuit 19, the transmission circuit 18, the speech path switch 16, the TA 13, the DSU 12, and the ISDN line. Start a call with the local phone. During the call, the voice of the digital wired handset 61 side and the voice of the other side are TA1.
PCM data a is transmitted and received between the analog port A of 3 and the transmission circuit 18.

Next, when the incoming call data arrives at the ISDN line side, the TA 13 executes a predetermined incoming call protocol to determine whether the incoming call is an incoming call intended for a call, and controls the control. Notify the section 15. The control unit 15 uses TA1
When the incoming call notified from 3 is an incoming call intended for a telephone call, the incoming call data is sent to the transmission circuit 18 and transmitted to the digital wired handset 61 to ring the digital wired handset 61. Then, when the response data from the digital wired slave device 61A is received through the transmission circuit 18 during the incoming call, the control unit 15 controls the communication path switch 16 to respond to the incoming ISDN line 61.
Connect the path with A and from TA13 to ISDN
Send response data to the line side. Thereby, the incoming call response call of the digital wired cordless handset 61A is started.

When the incoming call arrives at the ISDN line, the control unit 15 controls the single telephone interface 22 to ring the single telephone 35 and realize the incoming call response of the single telephone 35. Further, when the calling operation of the single telephone 35 is detected via the single telephone interface 22, the TA 13 is transmitted in the same manner as the digital wired handset 61.
To execute the calling protocol and the ISD of the single telephone 35
It is also possible to make an outside line call through the N line. Furthermore, when a call operation of the G3FAX 31 is detected via the single telephone interface 22, the TA 13 can execute a calling protocol similarly to the digital wired handset 61 to cause the G3FAX 31 to perform facsimile communication.

(2) Extension call When, for example, an extension transmission operation is performed in the digital cable slave unit 61A, this operation data is received by the transmission circuit 18 via the extension circuit 19. When the control unit 15 receives this operation data from the transmission circuit 18, it sends out the incoming call data to the transmission circuit 18 and, for example, the digital wired handset 61B on the called side.
To the called digital wire slave device 6
Ring 1B. At this time, when the response data of the called digital wired slave device 61B is received via the transmission circuit 18, the control unit 15 controls the call path switch 16 to call the calling digital wired slave device 61A and the called digital device. The call path with the wired cordless handset 61B is connected. As a result, an extension call of the digital wired cordless handset 61 is started. Further, when the extension calling operation of the single telephone 35 is detected via the single telephone interface 22, the incoming call data is sent to the transmission circuit 18 in the same manner as the digital wired slave 61, and the digital wired slave 61 on the called side is set. Single phone 3 by ringing the incoming call
It is also possible to make an extension call of 5.

Besides, in the main unit 11, the setting unit 28
When the answering mode is set on the recording medium, the recording / reproducing unit 26 can be made to record a message from outside via the ISDN line and the TA 13. In this case, the digital wired handset 61 and the independent telephone 35 can reproduce and listen to the message message recorded in the recording / reproducing unit 26. The message recorded in the recording / playback unit 26 can be heard by transmitting the PB signal after transmitting the message to the main device 11 from the outside. In addition, the digital wired cordless handset 6
1 and the independent telephone 35 send a predetermined operation signal to the controller 15
By controlling the intercom / electric lock interface 27 to be sent to the door control unit 15, it is possible to respond to a call from the intercom and open / close the electric lock. Further, the PHS slave device 4 wirelessly connected to the PHS master device 81 performs a predetermined operation and transmits this operation signal to the control unit 15 via the PHS master device 81 and the transmission circuit 18,
It is possible to make outside calls and extension calls.

(3) Data communication via ISDN line When incoming data arrives at the ISDN line, the TA 13 executes the above-mentioned incoming call protocol to check whether the incoming call is an incoming call for the purpose of making a call. It is determined and the control unit 15 is notified. When the incoming call notified from the TA 13 is an incoming call intended for data communication, the control unit 15 controls the TA 13 to immediately respond to the incoming call and send the data from the ISDN line to the router 14 side. To At this time, the control unit 15 controls the communication path switch 16 to connect the path between the PHS master device 81D and the B channel control unit 23. When the TA 13 responds to the incoming call, packet data arrives from the ISDN line and is received by the router 14 via the TA 13. When the destination address added to the header of the packet data matches the above-mentioned global address of this device, the router 14 sends this series of packet data through the B channel controller 23.
Send to 6 side. This packet data passes through the speech path switch 16, the transmission circuit 18 and the extension circuit 19 and is transferred to the PHS.
The server 7 is transmitted to the parent device 81D and further wirelessly connected to the PHS parent device 81D via the PHS child device 4A5 of FIG.
Sent to. When the private address of the extension terminal in this device is added to this packet data passed through the ISDN line, the server 7 stores the packet data in association with the private address.

Next, when the personal computer 5A2 shown in FIG. 6 accesses the Internet 2, the personal computer 5A2 sends a command to that effect and its own private address to the PHS.
It transmits to the child device 4A2. As a result, the PHS cordless handset 4A2
Sends these data to the PHS master 81A.
When the PHS master device 81A receives data such as commands from the personal computer 5A2 via the PHS slave device 4A2, the PHS master device 81A transmits the data such as commands to the main device 11 side during transmission with the transmission circuit 18 of the main device 11. . When the control unit 15 receives the command of the personal computer 5A2 from the transmission circuit 18,
The telephone number of the provider set in advance in the setting unit 28 is read and transmitted to the TA 13 for dialing, and the command and private address from the personal computer 5A2 are transmitted to the router 14. At this time, simultaneously, the communication path switch 16 is controlled to connect the path between the B channel control unit 23 and the PHS master device 81A.

Upon receiving the command and the private address from the personal computer 5A2, the router 14 converts the address into the global address and sends it to the TA 13.
When the provider responds to the dial transmission, the TA 13 connects to the Internet 2 by transmitting the global address from the router 14 and a preset password of the present device to the provider. As a result, the personal computer 5A2 can access the internet 2, and the personal computer 5A2 can access image data etc. posted on the homepage of the internet 2, for example.
ISDN line, TA13 in main unit 11, router 14,
Via the B channel controller 23, the speech path switch 16, the transmission circuit 18, and the extension circuit 19, the PHS master device 81A
And, it can be displayed on the display while being stored in the memory through the PHS slave unit 4A2. In this way, it becomes possible to browse the home page of the Internet by the personal computer 5A2.

In the case of data communication via the ISDN line of the personal computer 5A2, similarly, the TA13 dials the provider, and when the provider responds, the private address and destination address of the personal computer 5A2 from the personal computer 5A2 are sent. Data that contains PHS
It is transmitted to the PHS master device 81A via the slave device 4A2. The transmission data passes through the extension circuit 19, the transmission circuit 18, the communication path switch 16, and the B channel control unit 23 in the main device 11, and then the private address of the personal computer 5A2 is converted into a global address by the router 14, and the TA 13 is further converted. And is stored in a server (not shown) of the provider via the ISDN line via the DSU 12. The provider retrieves data from its own server by executing the TCP / IP protocol, and sends it to the PHS base station 3 of FIG. 6 via the Internet 2 according to the destination address included in the data. This allows
The transmission data of the personal computer 5A2 is sent to the personal computer 5A1 via the PHS handset 4A1 wirelessly connected to the PHS base station 3.

(4) Inter-extension data communication When the personal computer 5A2 shown in FIG. 6 accesses the server 7 in FIG. 6 and reads the data in the server 7, the personal computer 5A
In addition to the command to that effect and its own private address, 2 sends the private address of the server 7, which is the destination address, to the PHS handset 4A2. As a result, PH
These data are transmitted from the S slave 4A2 to the PHS master 81A. When the PHS master device 81A receives data such as commands from the personal computer 5A2 via the PHS slave device 4A2, the PHS master device 81A transmits the data such as commands to the main device 11 side during transmission with the transmission circuit 18 of the main device 11. . When the control unit 15 receives the command of the personal computer 5A2 via the transmission circuit 18, it controls the communication path switch 16 to control the B channel control unit 23, the PHS master device 81A and the PHS master device 81D.
Connect the paths between.

As a result, the data such as the command from the personal computer 5A2 is transferred to the transmission circuit 18 and the communication path switch 1.
6, via the route of the B channel control unit 23, the router 14
Will be received at. In this case, since the destination address is the address of the server 7, the router 14 does not send to the ISDN line side but returns to the extension side. As a result, data such as a command from the personal computer 5A2 is sent to the PHS master 81D via the route of the B channel controller 23, the communication path switch 16, the transmission circuit 18, and the extension circuit 19,
It is sent from the PHS master 81D to the server 7 via the PHS slave 4A5 of FIG.

When the command is received, the server 7 receives the command from the outside and stores the data addressed to the personal computer 5A2 via the ISDN line (that is, the data corresponding to the private address of the personal computer 5A2) or via the extension. When the data addressed to the personal computer 5A2 transmitted from the personal computer is stored, the data addressed to the personal computer 5A2 is extracted, and the private address of the personal computer 5A2 is added to the retrieved data as the destination address.
Send to HS cordless handset 4A5. Data from server 7 is P
It is sent to the HS master device 81D and further received by the router 14 via the extension circuit 19, the transmission circuit 18, the communication path switch 16, and the B channel control unit 23. Since the destination address of the router 14 is the private address of the personal computer 5A2, the received data is returned to the extension side. As a result, the data from the server 7 is transferred to the P channel via the B channel control unit 23, the communication path switch 16, the transmission circuit 18, and the extension circuit 19.
The data is sent to the HS master device 81A and further to the personal computer 5A2 via the PHS slave device 4A2.

Further, the personal computer 5A2 can store data addressed to the personal computer 5A3 shown in FIG. 6 in the server 7, for example. In this case, the personal computer 5A2 transmits a command to that effect and data including its own private address and the private address of the personal computer 5A3 which is the destination address. As a result, the path formation by the control of the communication path switch 16 of the control unit 15 similar to the above and the router 1
4, data path control is performed, and commands and data from the personal computer 5A2 are transmitted to the server 7 in FIG. The server 7 sends a personal computer 5A based on the received command.
The transmission data from 2 is stored as data for the personal computer 5A3. In this case, the personal computer 5A3 is also the server 7
Can be accessed to retrieve the data addressed to itself. The personal computer 5A2 can also directly send data to the personal computer 5A3. Further, the personal computer 5A2 can also cause the printer 8 connected to the server 7 to print its own data by transmitting its own data to the server 7 together with the print command.

Furthermore, the personal computer 5A2 sends data including its own private address to the server 7 together with the destination address and sends a predetermined send command to the server 7 to send its own data from the server 7.
It can also be transmitted to the outside via a DN line. In this case, since the data of the personal computer 5A2 and its private address are transmitted from the server 7 to the router 14, the router 14 converts the private address of the personal computer 5A2 into a global address as described above, together with the data including the destination address. Send to the ISDN line side. By giving a private address to each personal computer in this way, each personal computer can be connected to the wireless LAN.
Each resource such as the server 7 and the printer 8 can be shared.

[0044]

As described above, according to the present invention, I
A plurality of PHS masters are connected to the extension side transmission circuit of a button telephone device that accommodates an SDN line as an external line, and a plurality of PHS slaves are always wirelessly connected to the plurality of PHS masters.
Also, while connecting a plurality of extension terminals that perform data communication to a plurality of PHS handsets, while controlling outgoing and incoming calls to the ISDN line to the main device, TA (terminal adapter that transfers voice signals and data of extension terminals) )When,
A router that transfers the data of the extension terminal to one of the ISDN line side and the extension terminal side according to the destination address included in the data, and a PHS master unit that controls the call path switch during data communication of the extension terminal and corresponds to the extension terminal And a control unit that forms a path between the router and the router are provided to enable the telephone call by the key telephone and the data communication of the extension terminal. Therefore, an external network such as the Internet via the ISDN line can be used by using the key telephone device capable of the telephone call. Can be accessed, and thus data communication can be performed with a desired destination connected to the external network. Also,
Since the personal computer and the server are provided as the extension terminals, the personal computer can access the external network and a plurality of personal computers in the key telephone device can share the same server. Further, since different private addresses are given to the personal computer and the server, the router can accurately deliver the data to the extension terminal.

Further, the TA responds to the incoming call when it arrives at the ISDN line, and the control unit controls the call path switch to form a path between the PHS master unit corresponding to the server and the router. Since the data coming to the line is stored in the server, the data from the outside can be stored in the server easily. Further, the router adds a global address to the data and transfers the TA to the TA when the address different from the private address is added to the data as the destination address during the communication of the data of the personal computer, while the TA is set in advance. The dialed number is sent to the ISDN line, and the transferred data is sent to the ISDN line after the response to this call is detected. Therefore, the router accurately determines whether the data from the personal computer is the data destined for the outside. It can be identified and transferred. Also, when a private address is added as a destination address during PC data communication, the router transfers the PC data to the extension terminal according to the private address, so the data from the PC is stored in the device. Can be transferred to the correct destination.
In addition, the data stored in the server can
Since the data is transmitted to the DN line side, the personal computer side can retrieve the data addressed to itself stored in the server, and the data addressed to the outside stored in the server
Can be sent to the SDN line side.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main unit of a key telephone device according to the present invention.

FIG. 2 is a block diagram of a digital wired cordless handset constituting the key telephone device.

FIG. 3 is a block diagram of a PHS master device that constitutes a key telephone device.

FIG. 4 is a block diagram of a PHS handset that constitutes a key telephone device.

FIG. 5 is a block diagram of a PHS handset constituting a key telephone device.

FIG. 6 is a block diagram of a key telephone device.

[Explanation of symbols]

1 ... Button telephone device, 2 ... Internet, 3 ... PHS
Base station, 4A1 to 4A5, 4-1 and 4-2 ... PHS slave unit, 5A1 to 5A3 ... Personal computer, 7 ... Server, 8 ... Printer, 11 ... Main device, 12 ... DSU, 13 ... TA (terminal adapter), 14 ... Remote router, 15 ... Control part, 16 ... Time division communication path switch, 18 ... Transmission circuit, 6
1A to 61D ... Digital wired cordless handset, 81A to 81D ... P
HS base unit.

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04Q 3/58-3/62 H04B ⁷ /24-7/26 H04L 12/00-12/28 H04L 12/50-12 / 66 H04M 3/00 H04M 3/16-3/20 H04M 3/38-3/40 H04M 7/00-7/16 H04M 11/00-11/10 H04Q 7/00-7/38

Claims (7)

(57) [Claims] 1. A main device for accommodating an ISDN line as an external line, and a plurality of key telephones connected to the main device, wherein the main device comprises a line terminating circuit for terminating the accommodated ISDN line, and a voice signal. A call line switch that performs time division multiplexing of signals and data, a call line switch that is connected to the call line switch and is also connected to a key telephone, and a transmission circuit that transmits a voice signal and data The ISDN of the key telephone by controlling the path switch to form the path of the call path switch.
In a button telephone device that enables an outside call and an extension call via a line, a plurality of PHS master devices connected to the transmission circuit, and a plurality of PHS slave devices that are constantly wirelessly connected to the plurality of PHS master devices, respectively. PH connected to each of multiple PHS slaves
The main device is connected to the line terminating circuit, and controls outgoing and incoming calls to and from the ISDN line through the connected line terminating circuit. In addition, the terminal adapter that transfers the voice signal and the data of the extension terminal is connected between the terminal adapter and the call path switch, and the data of the extension terminal is ISDN according to the destination address included in the data. A router that transfers to one of the line side and the extension terminal side, and a control unit that controls the call path switch during data communication of the extension terminal and forms a path between the PHS master device corresponding to the extension terminal and the router Button telephone device characterized by the above. 2. The key telephone device according to claim 1, further comprising a personal computer and a server as the extension terminal. 3. The key telephone device according to claim 2, wherein the personal computer and the server have different private addresses. 4. The terminal adapter according to claim 3, wherein when the terminal adapter receives an incoming call to an ISDN line, the controller responds to the incoming call, and the control unit controls the call path switch and the PHS master device corresponding to the server. forming a path between routers, and the terminal adapter and the key telephone system, characterized in the data arriving at the ISDN line after the call response be stored in the server by controlling the router. 5. The router according to claim 3, wherein, when an address different from a private address is added to the data as the destination address when the data of the personal computer is transmitted, the address of the key telephone device is added to the data. Is added to the terminal adapter and transferred to the terminal adapter, while the terminal adapter sends a preset dial number to the ISDN line and sends the transferred data to the ISDN line after detecting a response to this call. Button telephone device characterized by the above. 6. The method according to claim 3, wherein the private address is added as the destination address at the time of data communication of the personal computer.
The control unit controls the communication path switch to form a path between the PHS master device and the router corresponding to the extension terminal having the private address, and the router transfers the data to the extension terminal according to the private address. A button telephone device characterized by: 7. The button telephone according to claim 4, wherein the data stored in the server is transmitted to one of the personal computer and the ISDN line side in response to a command output from the personal computer. apparatus.