JP2002118864A - Key telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct a variety of service using abundant information without increasing the scale of system constitution. SOLUTION: A display request means 22A in the key telephone system 2 transmits an information display request to information managed by a server 3 to a main device 1 in accordance with operation for requesting the display of the information and a data transfer means 12B in the main device 1 determines whether data from the telephone set 2 are to be used for processing in the main device 1 or data to be transmitted to the server 3. When the data are to be transmitted to the server 3, the means 12B transfers the telephone set ID of the transmitting source key telephone set and its data to the server 3 and transfers data from the server 3 to the key telephone system 2 corresponding to the telephone set ID received together with the data and a display control means 22B in the telephone set 2 analyzes and displays mark-up language data transmitted from the server 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone system, and more particularly to a key telephone system in which information stored in a server connected to a main unit is used by a key telephone.

[0002]

2. Description of the Related Art In general, a key telephone system comprises a main unit connected to a telephone line and one or more key telephones connected to the main unit. Key phones detect key operations and handset status,
By transmitting these operation information to the main unit, the main unit performs various functions based on the operation information from the key telephone, thereby realizing various functions such as external calls to telephone lines and internal calls to other key telephones. It is something to do. In recent years, in offices and the like in which a key telephone and a personal computer are used in combination, an information processing terminal such as a personal computer (hereinafter referred to as P
CTI) to provide advanced functions by connecting
(Computer Telephony Integration) system is spreading.

FIG. 10 is a block diagram showing the configuration of a conventional CTI system. The main unit 91 is connected to a telephone line 90, and each of the key telephones 93A to 93N is connected to an extension transmission line 92.
Is connected to the main device 91 via the. Each of the key telephones 93A to 93N is associated with a corresponding one of PC terminals 97A to 97N.
A to 97N are connected to a server 95 via a LAN line 96. The main device 91 and the server 95 are connected via a data communication path 94, and exchange various kinds of information as needed.

[0004] In the server 95, personal information such as a name and a work place is registered as an information storage unit in association with the telephone number of the other party. In each of the PC terminals 97A to 97N, LA
The information storage unit information of the server 95 connected by the N line 96 can be displayed on the screen as a list and searched, and a call can be made to the searched destination. For example, when a call operation is performed to a destination selected from the list displayed on the screen on the PC terminal 97A, the server 95 extracts the destination telephone number from the information storage unit and requests the main device 91 to make a call. I do.
In response, main device 91 performs external line transmission processing based on the telephone number of the other party as if a transmission operation was performed by key telephone 93A installed in association with PC terminal 97A.

When a caller's telephone number is notified from the telephone line 90 when an outside line is received, the main device 91 notifies the server 95 of the caller's telephone number. The server 95 searches the information storage unit based on the notified caller telephone number, and stores the obtained personal information on the caller in the key telephone set that responds to the incoming call from outside, for example, the key telephone set 9.
It is displayed on the screen of the PC terminal 97A associated with 3A.

[0006]

However, in such a conventional key telephone system, each key telephone 9
3A to 93N, PC terminals 97A to 97N need to be provided in association with each other.
To 97N need to be connected to the server 95 via the LAN line 96. Therefore, even a small-scale button telephone system having a relatively small number of telephone lines and key telephones requires such a configuration, which increases the overall configuration of the system and, of course, increases the cost of the system itself. And the work load required for management and maintenance also increased. The present invention has been made to solve such a problem, and an object of the present invention is to provide a key telephone system capable of performing various services using abundant information without increasing the scale of the system configuration.

[0007]

In order to achieve the above object, a key telephone system according to the present invention comprises a main unit connected to a telephone line and a main unit connected to a main unit via a data communication path. An information processing terminal having a storage unit for storing information, connected to a main device via an extension transmission line, operating by exchanging various data with the main device using the extension transmission line, and displaying various information; At least one key telephone having a screen display unit, wherein a display requesting means of the key telephone issues a predetermined information display request in response to an operation indicating a display request for information managed by the information processing terminal. The display control means of the key telephone analyzes the markup language data received from the information processing terminal via the main device, displays the data on the screen display unit, and displays the data on the screen display unit. It is determined whether the data received from the key telephone is data used for processing in the main device or data addressed to the information processing terminal. The data is transferred to the information processing terminal together with the data, and the data received from the information processing terminal is transferred to the key telephone corresponding to the identification information received together with the data. According to the display request and the identification information, the requested information is read from the storage unit and transmitted to the main device together with the identification information.

When an information menu for selecting desired information is displayed on the key telephone, the display requesting means of the key telephone sets various items of information managed by the information processing terminal in response to a predetermined menu display request operation. A menu information display request for requesting an information menu consisting of: transmitting the identification information indicating the source button telephone together with the menu information display request by the data transfer means of the main device in response to the menu information display request from the key telephone; Transfers the markup language data indicating the information menu returned from the information processing terminal in response to the menu information display request to the information processing terminal, and transmits the menu information display request request button based on the identification information received along with the data. Transfer to the telephone and use the display control means of the key telephone to mark up the information menu. Analyzing the language data may be displayed as information menu of items of various kinds of information for managing the information processing terminal.

Further, when desired information is selected and displayed using the information menu on the key telephone, display request means of the key telephone responds to a selection operation of selecting an arbitrary item from the displayed information menu. From the markup language data of the information menu, extract the data location information described corresponding to the selected item, send an item information display request including the data location information, and in the data transfer unit of the main device, In response to the item information display request from the key telephone, the identification information indicating the source button telephone is transferred to the information processing terminal together with the item information display request, and the information processing terminal is transmitted based on the data location information included in the item information display request. Based on the identification information received along with the markup language data indicating the information content of the item retrieved and returned in The request information is transferred to the requesting key telephone, and the display control means of the key telephone analyzes the markup language data indicating the information content of the item and displays it as the information content managed by the information processing terminal. It may be.

When the information processing terminal checks the information display request from the key telephone, the telephone corresponding means of the information processing terminal manages the display state for each key telephone, and when the information display request is received, Determining the consistency between the display state of the requesting button telephone and the new information display request, and returning the information requested by the new information display request only when the consistency between the two is confirmed. It may be.

[0011]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a key telephone system according to an embodiment of the present invention. In the figure, a key telephone system includes a main device 1 connected to a telephone line 10, a key telephone 2 (2A to 2N) connected to the main device 1 via an extension transmission line 20, and a connection to the main device 1. And a server (information processing terminal) 3 having an information storage unit for storing various information. In the following, telephone line 1
In the following, an example of a key telephone system in which a plurality of 0s are connected and a plurality of key telephones 2 are connected will be described. However, the present invention is not limited to this. In this case, the present invention can be applied.

In the main unit 1, reference numeral 11 denotes an external line I / F for controlling the termination of the telephone line 10, reference numeral 13 denotes an internal line I / F for performing data transmission with each key telephone connected via an internal transmission line 20, and reference numeral 12 Is an external line I / F section 11 and an internal line I / F section 13
, A main control unit for performing various function processing,
Is a main storage unit that stores information necessary for processing in the main control unit 12, and 15 is a communication I / F unit that is connected to the main control unit 12 and performs data communication with the server 3 via the data communication path 30. As the extension transmission line 20 and the data communication line 30, a wired transmission line or a wireless transmission line may be used, respectively. The main control unit 12 includes a function processing unit 1 for providing functions of a general key telephone system, such as operation control of each key telephone 2 and control of the telephone line 10.
2A and data transfer means 12B for realizing exchange of various data between the key telephone 2 and the server 3 via the main device 1.

The server 3 is comprised of an information processing terminal such as a personal computer, 31 is a communication I / F unit for performing data communication with the main unit 1 via the data communication path 30, and 33 is comprised of a hard disk device or the like. An information storage unit 32 in which various information such as a book is stored, retrieves desired information from the information storage unit 33 in response to a request from the main device 1, and performs communication I
A server control unit 34 that transmits data via the / F unit 31 is a server storage unit that stores information necessary for processing in the server control unit 32. The server control unit 32 is provided with a telephone correspondence unit 32A that searches the information storage unit 33 for information requested from the key telephone 2 via the main device 1 and returns it.

Each of the key telephones 2 (2A to 2N) has the same configuration. In these key telephones 2, reference numeral 21 denotes a transmission I / F unit for performing data transmission with the main device 1 via the extension transmission line 20, and 23 decodes the audio data received by the transmission I / F unit 21 into an audio signal. Output to handset HS or speaker SP, encode audio signal input from handset HS into audio data, and transmit I / F
An audio processing unit 24 for outputting to the unit is an operation input unit for detecting various key operations and a hook state.

A transmission unit 22 transmits the operation data detected by the operation input unit 24 to the main unit 1 via the transmission I / F unit 21, and transmits the main unit 1 received by the transmission I / F unit 21.
A control unit for controlling each circuit unit of the key telephone set based on the control data from the control unit, 25 is a control memory for storing various information necessary for control processing in the control unit for the handset, and 27 is a character / character memory.
26A is a TEL screen memory for storing display data edited by the main unit 1; 26A is a screen display unit such as an LCD for displaying various information such as patterns and images in a dot matrix.
B is a CTI screen memory for storing display data transferred from the server 3 via the main device 1.

The handset control unit 22 includes a display request means 2 for transmitting an information display request for requesting display of desired information to the main device 1 in response to a display request operation detected by the operation input unit 24.
2A is provided. Of the display data received from the main device 1, display data edited by the main device 1 is stored in the TEL screen memory 26A, and display data transferred from the server 3 via the main device 1 is represented by C.
Display control means 22B for storing in the TI screen memory 26, analyzing markup language display data (hereinafter referred to as markup language data) stored in the CTI screen memory 26B, and displaying the data on the screen display unit 27; Have been.

The display data edited by the main unit 1 and the server 3
The description format of the display data itself differs from that of the display data transferred from the main device 1 via the main device 1. Main device 1
In the edited display data, what character and design are displayed at which position on the screen is indicated. On the other hand, display data transferred from the server 3 via the main device 1 is HTML (Hypertext Markup Language) or SGM.
It is described in a markup language such as L (Standard Generalized Markup Language), and the display data includes multimedia contents such as image information and audio information. The key telephone 2 needs to analyze this, convert it into a format such as display data edited by the main device 1 and display it.

According to the present invention, a screen memory is provided for each of such display data of different formats so that the display data can be individually managed. Therefore, two display data having different description formats can be easily managed. The display can be switched immediately, and the processing load on the slave unit control unit 22 can be reduced. In addition, the display control unit 22B of the key telephone 2 analyzes the display data in the markup language and outputs it on the screen or outputs the voice, so that advanced expression can be performed on the key telephone and the user interface is greatly improved. I do.

Next, referring to FIG. 2, as an operation of the present invention, desired information managed by server 3 is transmitted to key telephone 2A.
The operation in the case of displaying with will be described. When the user of the key telephone 2A selects desired information from various types of information managed by the server 3, the user presses a predetermined menu key to request an information menu including items of various types of information managed by the server 3. (Step 100). In the slave unit control section 22, this key operation is detected by the operation input section 24, and menu key operation data is transmitted from the display request means 22A as a menu information display request for requesting the information menu (step 101). The menu key operation data is transmitted from the slave unit control unit 22 to the transmission I / F unit 2.
1. The signal is received by the main control unit 12 via the extension transmission line 20 and the extension I / F unit 13 of the main device 1 and passed to the data transfer unit 12B.

In the data transfer section 12B, the key telephone 2
It is determined whether the data from (2A to 2N) is to be sent to main device 1 used for processing in main device 1 or to be transferred to server 3. FIG. 3 is an explanatory diagram showing a configuration example of data exchanged between the main device 1, the key telephone 2, and the server 3. FIG. 3A shows an example of the format of data exchanged between the main device 1 and the key telephone 2, in which a command 28A and detailed data 28 are shown.
B. The command 28A indicates a type classified according to the content and meaning of the data, and the detailed data 28B indicates more detailed content within the type.

FIG. 3B shows an example of the format of data exchanged between the main device 1 and the server 3, and a telephone ID (identification information) 28C is added to the format of FIG. 3A. ing. Since data is exchanged between the main device 1 and the key telephone 2 using the individual extension transmission lines 20, there is no need to specify the transmission destination or the reception destination of the data. On the other hand, since data is exchanged between the main device 1 and the server 3 using the common data communication path 30, it is necessary to specify a transmission destination or a reception destination of the data. It should be noted that a format as shown in FIG. 3B may be used instead of a method using the individual extension transmission line 20 but a method in which each key telephone 2 manages its own ID.

In the handset control section 22 of the key telephone 2, data to be transmitted to the main device 1 is transmitted to the main device 1 in the format shown in FIG. 3A based on the type and detailed contents of the data. . As the type, a type of a function assigned to each key, for example, a type such as an outside line key, a dial key, hook information, an arrow key, and a decision key is used. For function keys such as a server menu key and a telephone directory key, individual types are used for each function. Further, control data different from these operation data, for example, a URL (Uniform Resource Locator: data location information) transmitted from the key telephone 2 to the server 3 described later.
Similarly, for the markup language data transmitted from the server 3 to the key telephone 2, individual types are used for the respective functions.

The data transfer means 12B refers to the command 28A included in the received data and determines, based on the type of the data, whether the data is addressed to the main device 1 used for processing in the main device 1 or should be transferred. It is determined whether the transfer is necessary. The menu key operation data from the key telephone 2A is determined to be the data to be transferred to the server 3 from the type of the command 28A, and the telephone key ID 28C indicating the key telephone 2A as the transmission source is used as shown in FIG. A format as shown in b) is configured.
Then, the menu key operation data, that is, the menu information display request is transferred to the server 3 (step 10).
2). This menu information display request is received by the server control unit 32 from the main control unit 12 via the communication I / F unit 15, the data communication path 30, and the communication I / F unit 31 of the server 3, and the telephone correspondence unit 32A Passed to

The telephone corresponding means 32A analyzes the received data and confirms that it is a menu information display request from the key telephone 2A. Then, the information storage unit 33
, The markup language data indicating the information menu is read out (step 105), the markup language data and its type, and the telephone ID 28 of the key telephone 2A.
The format shown in FIG. 3 (b) is configured using C and transmitted to the main device 1 along the reverse route to that described above. The information menu is display data including various information items managed by the server 3, and is described in a markup language as shown in FIG.

The data transfer means 12B of the main unit 1 refers to the command 28A of the data received from the server 3 and
It is determined whether transfer to the key telephone is necessary based on the type. Here, since the received data is the markup language data of the information menu, it is determined that the data should be transferred to the key telephone 2A. Then, the telephone ID 28C added to the data is removed.
A format as shown in FIG. 7A is formed and transferred to the key telephone 2A indicated by the telephone ID 28C. This data is transferred to the key telephone 2A along the route reverse to the menu key operation data described above.

In the handset control unit 22 of the key telephone 2A,
With reference to the command 28A of the received data, it is recognized from the type that the data is markup language data. Then, the display control unit 22B stores the markup language data stored in the detailed data 28B in the CTI screen memory 26B. Thereafter, the display control means 22B performs the CT operation.
The markup language data stored in the I screen memory 26B is read and analyzed, and the contents thereof are displayed on the screen display unit 2.
7 is displayed (step 107). Thereby, as shown in FIG. 5, the screen display unit 27 of the key telephone 2A
The information menu of the server 3 is displayed. In this example, items such as mail, telephone directory, and news are displayed as various information managed by the server 3.

The user operates the arrow keys and the confirmation key of the key telephone 2A to select and confirm the item to be displayed in the information menu (step 110). The slave unit control unit 22 detects this operation with the operation input unit 24, and the selected item, for example, “1.
The URL (underlined portion in FIG. 4) corresponding to the item "mail" is extracted from the markup language data of the information menu. Then, the URL is transmitted to the main device 1 as an item information display request for requesting detailed display of the selected item (step 111). This data is transferred to the server 3 via the data transfer means 12B of the main device 1 as described above.

The telephone corresponding means 32A of the server 3 analyzes the received data and confirms that the request is the item information display request from the key telephone 2A. And the UR
Based on L, item information, in this case, markup language data indicating a mail list is read out (step 115), and the markup language data and its type and the telephone ID 28C of the key telephone 2A are used to read the markup language data. 3 (b), the main unit 1
(Step 116).

The mail list is display data composed of items of mail attribute information managed by the server 3, and is described in a markup language as shown in FIG. This data is transmitted to the data transfer unit 1 of the main device 1 in the same manner as described above.
The mail list is transferred to the key telephone 2A via 2B, and a mail list as shown in FIG. 7 is displayed on the screen display unit 27 by the display control means 22B (step 117).

The user operates the arrow keys and the confirmation key of the key telephone 2A to select and confirm the mail whose contents are to be displayed in the mail list (step 12).
0). The slave unit control unit 22 detects this operation with the operation input unit 24, and displays the selected item, for example, “08/10 16:23 hiro @ tamra .. summer vacation ..” by the display requesting unit 22A. The corresponding URL (underlined part in FIG. 6) is extracted from the markup language data of the information menu. Then, the URL is transmitted to the main device 1 as an item information display request for requesting detailed display of the selected item (step 121). This data is transferred to the server 3 via the data transfer means 12B of the main device 1 as described above.

The telephone corresponding means 32A of the server 3 analyzes the received data and confirms that it is the item information display request from the key telephone 2A. And the UR
Based on L, item information, in this case, markup language data indicating the contents of mail is read out (step 125), and the markup language data and its type and the telephone ID 28C of the key telephone 2A are used to read the markup language data. The format shown in FIG. 3B is constructed and transmitted to the main device 1 (step 126). Email content is on server 3
Is the display data composed of the attribute information and the contents of the mail managed by the user, and is described in a markup language as shown in FIG. This data is transferred to the key telephone 2A via the data transfer means 12B of the main device 1 in the same manner as described above, and the mail contents as shown in FIG.
B is displayed on the screen display unit 27 (step 12
7).

As described above, the display request means 22A of the key telephone 2 transmits an information display request for the data to the main device 1 in response to the operation requesting the display of the information managed by the server 3, and the main device 1 The data transfer means 12B determines whether the data received from the key telephone 2 is data used for processing in the main device 1 or data addressed to the server 3, and if the data is addressed to the server 3, the source of the data is The telephone ID (identification information) 28C indicating the key telephone is transferred to the server 3 together with the data, and the data received from the server 3 is transferred to the key telephone 2 corresponding to the telephone ID 28C received together with the data, and the display of the key telephone 2 is displayed. The control unit 22B analyzes and displays the markup language data received from the server 3 via the main device 1. In addition, the main control unit 12 of the main device 1 does not need to capture and analyze all the data, thereby reducing the processing load on the main control unit 12 and providing a rich expressive power from the server 3 to the key telephone 2. The markup language data can be transmitted at a higher speed, and rich information can be displayed on the key telephone 2 with a short waiting time.

In particular, in response to a predetermined operation (pressing a menu key) on the key telephone 2, an information menu including various information items managed by the server 3 and list information including markup language data such as a mail list are displayed on the key telephone 2. Since the information is transmitted to and displayed on the server 3, the user can easily confirm various information managed by the server 3. In addition, since the URL corresponding to the item selected by the user in the displayed information menu is extracted from the markup language data and notified to the server 3, the operation state of the key telephone 2 (for example, the menu Selection state)
, The server 3 can easily acquire the information desired by the user only by the URL.

Further, the data transfer means 12B determines whether or not the transfer of the information is necessary, based on the command indicating the type of the received information, so that the information transmitted from the key telephone 2 or the server 3 contains the information. There ’s no need to include separate destination information to specify where to transfer information,
The necessity of transfer can be determined without increasing the capacity of exchanged information. Further, in the data transfer means 12B, the telephone ID 28C is added or the telephone ID 28C is deleted and transmitted to the corresponding extension transmission line according to the transmission source of the received data. The information of each key telephone 2 can be mixed and communicated between the main apparatus 1 and the server 3 without increasing the amount of information exchanged between the telephones.

In the telephone correspondence means 32A of the server 3, the display state of each key telephone 2 is managed, and when the information display request from the key telephone 2 is received through the main unit 1, the information display is performed. The consistency between the request and the display state at that time may be checked. As described above, the information display request from the key telephone 2 is provided with identification information for identifying the source key telephone 2. In the telephone correspondence means 32A of the server 3,
Using this identification information, the requesting key telephone 2 for each information display request can be identified.

When a new information display request is received, the consistency of the information displayed on the transmission source key telephone 2, for example, the information menu or mail list and the information display request is confirmed. As a method of confirming the consistency, for example, it is sufficient to confirm whether the URL indicating the information display request is included in the information menu or the mail list displayed on the key telephone 2. When the consistency of the information display request is confirmed, the information requested by the information display request is read from the information storage unit 33 and returned.
If the consistency is not confirmed, it is determined that the URL indicating the information display request is incorrect or the information display request is invalid, and the information display request is invalidated, and the requested information is not returned.

In addition to the URL check, the server 3 determines in advance whether or not each of the key telephones 2 has a screen display unit 27 as a display state of each of the key telephones 2.
May be managed in the server storage unit 34, and after confirming that the model has the screen display unit 27, the requested information may be transmitted. Thereby, an erroneous information display request from the key telephone 2 without the screen display unit 27 can be checked. In this way, the display state of each key telephone 2 is managed by the telephone correspondence means 32A of the server 3, and when an information display request is received, consistency with the display state of the requesting key telephone is checked. Judgment and return of the information requested by the new information display request only when the consistency between the two is confirmed, errors and impropriety in the exchange of the information display request can be checked. Information management can be realized.

In the above, the case where the information stored in the information storage unit 33 of the server 3 is provided to the key telephone 2 has been described as an example, but the present invention is not limited to this. As information managed by the server 3, for example, the server 3
When connected to a network such as an AN or the Internet, the server 3 may acquire information existing on the network and provide the information to the key telephone 2. Information management in the server 3 may be managed in common for each key telephone, or may be managed individually for each key telephone. In the case of individual management, an information menu, a mail list, and the like relating to information that can be requested to be displayed by each key telephone may be provided.

[0039]

As described above, according to the present invention, the display request means of the key telephone transmits an information display request for requesting display of information managed by the information processing terminal to the main unit, and the data transfer of the main unit is performed. In the means, it is determined whether the data received from the key telephone is data used for processing in the main device or data addressed to the information processing terminal. If the data is addressed to the information processing terminal, the data indicates the source key telephone of the data. The identification information is transferred to the information processing terminal together with the data, and the data received from the information processing terminal is transferred to the key telephone corresponding to the identification information received together with the data. Since the markup language data received from the information processing terminal is analyzed and displayed, the main control unit of the main unit captures all the data. In eliminates the need to analysis, it is possible to reduce the processing load of the main controller, expressive against EKT from the information processing terminal can transmit at a higher speed rich markup language data. Therefore, unlike the conventional system, there is no need to provide an information processing terminal for each key telephone or to provide a main unit with a means for converting information possessed by the information processing terminal and delivering the information to the key telephone. Various services using abundant information can be performed without increasing the number of services.

[Brief description of the drawings]

FIG. 1 is a block diagram of a key telephone system according to an embodiment of the present invention.

FIG. 2 is a timing chart showing the operation of the key telephone system.

FIG. 3 is an explanatory diagram showing a configuration example of data exchanged between a main device, a key telephone, and a server.

FIG. 4 is an example of markup language data (information menu).

FIG. 5: Display output on a key telephone (information menu)
This is an example.

FIG. 6 is an example of markup language data (mail list).

FIG. 7: Display output on a key telephone (mail list)
This is an example.

FIG. 8 is an example of markup language data (mail content).

FIG. 9 is an example of display output (mail content) on the key telephone.

FIG. 10 is a block diagram showing a configuration of a conventional CTI system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main apparatus, 10 ... Telephone line, 11 ... External line I / F part, 1
2 ... Main control unit, 12A ... Function processing unit, 12B ... Data transfer unit, 13 ... Extension I / F unit, 14 ... Main storage unit, 15
... Communication I / F section, 2, 2A-2N ... Key telephone, 20
... Extension transmission line, 21 ... Transmission I / F unit, 22 ... Slave unit control unit, 22A ... Display request unit, 22B ... Display control unit, 2
3 Voice processing unit, 24 Operation input unit, 25 Control memory, 26A TEL screen memory, 26B CTI screen memory, 27 Screen display unit, HS Handset, SP
Speaker 3, server 30, data communication path 31, communication I / F section 32, server control section 32A telephone correspondence means 33 information storage section 34 server storage section.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K015 AA01 AB01 AF02 5K024 AA71 CC03 FF03 5K027 AA03 BB01 FF22 MM17 5K049 AA15 BB13 BB22 BB23 CC06 CC07 CC11 KK02 KK12

Claims (4)

[Claims] A main unit connected to a telephone line; an information processing terminal connected to the main unit via a data communication path and having a storage unit for storing various information; and a main unit connected via an extension transmission line. Connected to a device, operates by exchanging various data with the main device using the extension transmission line, and includes one or more key telephones having a screen display unit for displaying various information; Display request means for transmitting a predetermined information display request to the main device in response to an operation indicating a display request for information managed by the information processing terminal; and a mark received from the information processing terminal via the main device. Display control means for analyzing up-language data and displaying the data on the screen display unit, wherein the main device determines whether data received from the key telephone is data used for processing in the main device. Determining whether the data addressed to the information processing terminal, if addressed to the information processing terminal data, and transfers the identification information indicating the source key telephone set of the data to the information processing terminal with said data together,
The information processing terminal includes data transfer means for transferring data received from the information processing terminal to a key telephone corresponding to the identification information received together with the data, wherein the information display terminal transmits the information display request and the identification transmitted from the main device. A key telephone system comprising: telephone corresponding means for reading requested information from the storage unit in accordance with information and transmitting the read information together with the identification information to the main device. 2. The key telephone system according to claim 1, wherein the display request unit of the key telephone requests an information menu including various information items managed by the information processing terminal in response to a predetermined menu display request operation. The data transfer means of the main device responds to the menu information display request from the key telephone by sending identification information indicating the source key telephone together with the menu information display request. Transfers the markup language data indicating the information menu returned from the information processing terminal in response to the menu information display request to the terminal, and transmits the menu information display request request source button based on the identification information received together with the data. Transfer to a telephone, and the display control means of the key telephone sets the key indicating the information menu. A key telephone system which analyzes backup language data and displays the analyzed data as an information menu indicating items of various information managed by the information processing terminal. 3. The key telephone system according to claim 2, wherein the display requesting means of the key telephone sets a markup of the information menu in response to a selection operation of selecting an arbitrary item from the displayed information menu. From the language data, data location information described corresponding to the selected item is extracted, and an item information display request including the data location information is transmitted. In response to the item information display request, the identification information indicating the source button telephone is transferred to the information processing terminal together with the item information display request, and the information processing terminal is transmitted based on the data location information included in the item information display request. The markup language data indicating the information content of the item searched for and returned in The display control means of the button telephone analyzes markup language data indicating the information content of the item based on the information managed by the information processing terminal. A key telephone system characterized by displaying as contents. 4. The key telephone system according to claim 1, wherein the telephone corresponding unit of the information processing terminal manages a display state of each of the key telephones and, when an information display request is received, a request source of the information display request. Determining the consistency between the display state of the key telephone and the new information display request, and returning the information requested by the new information display request only when the consistency between the two is confirmed. Button phone system.