JP3379502B2 - Button phone system - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Generally, a key telephone system is composed of a main unit connected to a telephone line and one or more key telephones connected to the main unit. With key telephones, key operation and handset status are detected,
By transmitting these operation information to the main unit and performing function processing based on the operation information from the key telephone, the main unit realizes various functions such as an outside call with the telephone line and an extension call with another key telephone. It is supposed to do. In recent years, in an office or the like that uses a key telephone and a personal computer together, one of the configurations of the key telephone system is to connect an information processing terminal (hereinafter, referred to as a PC terminal) such as a personal computer to a main device to provide an advanced function. CTI (Comp
uter Telephony Integratio
n) Systems are becoming popular.

FIG. 15 is a block diagram showing the structure of a conventional CTI system. The main device 91 is connected to the telephone line 90, and the key telephones 93A to 93N are connected to the extension transmission line 92.
It is connected to the main device 91 via. PC terminals 97A to 97N are provided in association with the button telephones 93A to 93N, respectively.
A to 97N are connected to the server 95 via the LAN line 96. The main device 91 and the server 95 are connected via a data communication path 94, and exchange various information as necessary.

In the server 95, personal information such as name and work is registered as a database in association with the telephone number of the other party. In each PC terminal 97A to 97N, L
The database information of the server 95 connected by the AN line 96 can be displayed as a list on the screen and searched, and the calling operation to the searched partner can be performed. For example, PC terminal 97
When a call operation is made to the destination selected in the list displayed on the screen in A, the server 95 extracts the destination telephone number from the database and requests the main device 91 to make a call. In response to this, the main device 91 performs the outside line transmission processing based on the telephone number of the other party, as if the transmission operation was performed using the key telephone 93A installed in association with the PC terminal 97A.

When the caller telephone number is notified from the telephone line 90 at the time of receiving an outside line, the main device 91 notifies the server 95 of the caller telephone number. The server 95 searches the database on the basis of the notified caller telephone number, and obtains the personal information relating to the caller from the key telephone that responded to the outside call, for example, the PC terminal associated with the key telephone 93A. It is to be displayed on the screen of 97A.

[0006]

However, in such a conventional button telephone system, each button telephone 9 is used.
The PC terminals 97A to 97N must be associated with each of the 3A to 93N, and these PC terminals 97A to 97N need to be installed.
~ 97N must be connected to the server 95 via the LAN line 96. Therefore, even for a small-sized key telephone system with a relatively small number of telephone lines and key telephones, such a configuration is required, and therefore the configuration of the entire system becomes large and the cost of the system itself is of course installed. There was a problem that the work load required for management and maintenance also increased. The present invention is intended to solve such problems, and an object of the present invention is to provide a button telephone system capable of performing various services using a wealth of information without increasing the scale of the system configuration.

[0007]

In order to achieve such an object, a key telephone system according to the present invention is connected to a main device connected to a telephone line and a main device via a data communication path, and various types of devices are provided. An information processing terminal having a storage unit that stores information, and one or more button telephones that are connected to the main device via an extension transmission line and have a screen display unit that displays various types of information. In the control unit, the TEL mode in which the information generated and transmitted by the main device is displayed and operated on the screen display unit, and the information transmitted from the information processing terminal through the main device is displayed and operated in the screen display unit It is designed to operate in any of the CTI modes. Therefore, not only the information generated by the main device but also the information possessed by the information processing terminal is displayed on the screen display unit of the key telephone.

When displaying information from the main unit and the information processing terminal on the key telephone, the key telephone receives the information from the main unit and stores it, and the information from the information processing terminal. A CTI screen memory for storing is provided, and the display management means reads out information from the TEL screen memory when its own operation mode is the TEL mode and displays it, and from the CTI screen memory when its own operation mode is the CTI mode. The information may be read and displayed. Then, the display management means may read the information in the markup description language transmitted from the information processing terminal from the CTI screen memory and display it on the screen display unit.

Regarding the operation mode of the key telephone, a mode management means is provided in the main device, and the key telephone is instructed to switch the operation mode based on the operation information transmitted from the key telephone in response to the operation or the state of the telephone line. At the same time, the operation mode of the key telephone may be stored and managed, and the handset controller may change its own operation mode based on an instruction from the main device. Further, the main device may be provided with a data transfer means, and the operation information from the key telephone may be transferred to the information processing terminal as necessary, and the information from the information processing terminal may be transferred to the corresponding key telephone.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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, the key telephone system is connected to the main unit 1 connected to the telephone line 10, the key telephone 2 (2A to 2N) connected to the main unit 1 via the extension transmission line 20, and the main unit 1. And a server (information processing terminal) 3 having a database for storing various kinds of information. In the following, a button telephone system in which a plurality of telephone lines 10 are connected and a plurality of button telephones 2 are connected will be described as an example, but the present invention is not limited to this, and a case where the telephone line is one line or The present invention can be applied even if there is only one key telephone.

In the main unit 1, 11 is an outside line I / F section for controlling the termination of the telephone line 10, 13 is an extension line I / F section for performing data transmission with each key telephone connected through an extension transmission line 20, and 12 Is an external line I / F unit 11 and an internal line I / F unit 13
And a main control unit that is provided between
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. The extension transmission path 20 and the data communication path 30 may be wired transmission paths or wireless transmission paths.

The server 3 is composed of an information processing terminal such as a personal computer, 31 is a communication I / F section for performing data communication with the main unit 1 via the data communication path 30, 33 is a hard disk device, etc. A database (accumulation unit) in which various types of information are stored, 32 retrieves desired information from the database 33 in response to a request from the main device 1,
A server control unit for transmitting via the communication I / F unit 31, 34
Is a server storage unit that stores information necessary for processing in the server control unit 32.

The key telephones 2 (2A to 2N) have the same configuration. In these button telephones, 21 is a transmission I / F unit that performs data transmission with the main device 1 through the extension transmission line 20, and 23 is a unit that decodes the voice information received by the transmission I / F unit 21 into a voice signal. Handset H
A voice processing unit that outputs to the S or speaker SP, encodes a voice signal input from the handset HS into voice information and outputs the voice information to the transmission I / F unit, and 24 is an operation input unit that detects various key operations and hook states. is there.

Reference numeral 22 transmits the operation information detected by the operation input unit 24 to the main device 1 via the transmission I / F unit 21 and receives the operation information from the main device 1 received by the transmission I / F unit 21. A slave unit control unit that controls each circuit unit of the key telephone based on the control information, 25 is a control memory that stores various kinds of information necessary for control processing in the slave unit control unit 22, and 27 is a dot that stores various kinds of information according to characters and patterns. A screen display unit such as an LCD for displaying in a matrix, 26A is a TEL screen memory for storing information displayed on the screen in the TEL mode, and 26B is a CTI screen memory for storing information displayed on the screen in the CTI mode.

According to the present invention, the button telephone 2 is provided with two operation modes, a TEL mode and a CTI mode, and each of the button telephones operates individually in either mode. The TEL mode is a mode in which the information generated by the main device 1 is displayed on the screen display unit 27 of the key telephone, as in the key telephone in the conventional key telephone system. On the other hand, in the CTI mode, the server 3
This is a mode in which the information stored in the database 33 is displayed on the screen display unit 27. Particularly, in the CTI mode, various information is directly exchanged between the server 3 and the key telephone set 2.

In this way, the main unit 1 is attached to the key telephone 2.
In addition to the TEL mode in which the information transmitted from the computer is displayed on the screen display unit 27 to operate, a CTI mode in which the information transmitted from the server 3 via the main device 1 is displayed on the screen display unit 27 to operate is provided. Therefore, various information held by the server 3 can be directly displayed on the screen of the key telephone 2. Therefore, unlike the conventional system, it is not necessary to provide an information processing terminal for each key telephone, and various services using abundant information can be performed without increasing the scale of the system configuration.

Since the information displayed on the screen display unit 27 is different between the TEL mode and the CTI mode, the key telephone 2
Includes a TEL mode screen memory 26A as a screen memory for storing information to be displayed in each operation mode.
And a CTI mode screen memory 26B is provided. The child device control unit 22 of the key telephone 2 is provided with a display management unit 22A that reads information from a screen memory according to its own operation mode and displays it on the screen display unit 27. In this way, different screen memories are provided corresponding to the respective operation modes, and the information displayed in each operation mode is individually managed. Therefore, the management of the display information is facilitated and the processing of the child device control unit 22 is performed. The burden can be reduced.

FIG. 2 is an explanatory view showing an example of the key arrangement of the key telephone, and to move the cursor displayed on the screen display unit 27 as a screen operation key group 24A immediately below the screen display unit 27. Arrow keys, a confirmation key for confirming and inputting options at the cursor position, a contents key for displaying various contents, and a telephone directory key for displaying a telephone directory. Below that is the telephone function key group 2
4B, an outside line key for selectively capturing a telephone line,
Extension key for extension calls, monitor key for speaker reception,
There are redial keys for redialing and speed keys for speed dialing. A dial key 24C for inputting a dial number is arranged below it.

The screen display unit 27 of the key telephone 2 displays either the information from the main unit 1 or the information from the server 3 according to the operation mode. Manipulate. Therefore, the operation on the key telephone 2 also needs to be transmitted to the transmission source of the displayed information in a predetermined format including the information required by the transmission source. Handset control unit 2 of button telephone 2
2 is provided with an operation information generation unit 22B that converts the operation input detected by the operation input unit 24 according to its own operation mode and transmits it in a predetermined format.

The screen operation key group 24A and dial keys 24C shown in FIG. 2 are used not only in the TEL mode but also in the CTI mode. Therefore, the operation information regarding these keys is transmitted to the main device 1 in the TEL mode,
In the CTI mode, it is necessary to send to the server 3. At this time, these keys are operated in almost the same meaning in any mode, but the operation input is converted into operation information corresponding to each mode by the operation information generating means 22B.

FIG. 3 is an explanatory diagram showing an example of correspondence between operations and operation information in each operation mode. Each operation information is composed of a command and detailed data. A command indicates the contents of each operation, and the same operation meanings are assigned to the same command. The detailed data is information for more detailed classification in the same command. In the operation information generating means 22B, the screen operation key group 24A
The dial key 24C is converted into different operation information in the TEL mode and the CTI mode. For example, the arrow key "←" is the command "0" in TEL mode.
2 ”+ detailed data“ 00 ”. Further, in the CTI mode, even the same key operation may be converted into different operation information based on the display content of the screen display unit 27, or a plurality of key operations may be converted into one operation information.

The operation mode of the key telephone 2 is as follows:
It is switched by the mode switching instruction from. Main device 1
The main control unit 12 is provided with a mode management means 12B for individually managing the operation mode of each key telephone 2. Here, the operation mode of each key telephone 2 is registered and managed corresponding to the telephone ID (telephone identification information) of each key telephone. The mode management means 12B issues an operation mode switching instruction to the corresponding key telephone 2 in response to a predetermined operation on the key telephone 2, a change in the state of the telephone line 10, or an instruction from the server 3. At the same time, the registered state of the operation mode is updated. The slave unit control unit 22 of the key telephone 2 switches its own operation mode in response to these mode switching instructions.

As described above, the mode management means 1 is provided in the main device 1.
2B is provided, and based on the operation information transmitted from the key telephone 2 and the state change of the telephone line 10, the key telephone 2
In addition to instructing to switch the operation mode to, the operation mode of the key telephone is stored and managed, and the handset controller 22 of the key telephone 2 changes the operation mode based on the instruction from the mode managing means 12B. Information stored in the database 33 of the server 3 is stored in the button telephone 2
When it is determined that the key telephone 2 needs to be displayed, the main device 1 can switch and control the operation mode of each key telephone 2, and the information from the server 3 can be flexibly and efficiently displayed according to various functions on the key telephone 2. .

The main controller 12 of the main unit 1 is provided with a function processing means 12A and a data transfer means 12C in addition to the mode management means 12B. The function processing means 12A executes various kinds of function processing including functions of a general key telephone device. As this functional processing, for example,
There are exchange control processing such as an operation of the key telephone 2 and a response of an outgoing call and an incoming call performed in response to a request from the server 3, and various function setting processing such as speed dial registration and key assignment registration. In the data transfer means 12C, various information is directly exchanged between the server 3 and the key telephone 2.
As the information, for example, information to be transmitted from the server 3 to a predetermined key telephone 2 in the CTI mode, a request for transmitting desired information from the key telephone 2 to the server 3, various processing requests, and the like of the main device 1 Information that does not need to be processed by the processing means 12A is given.

The server control section 32 of the server 3 is provided with a telephone corresponding means 32A. In the telephone corresponding means 32A, in response to various processing requests transmitted from the key telephone 2 via the data transfer means 12C of the main unit 1,
The requested processing is performed based on the information stored in the database 33 and the server storage unit 34. As this processing, for example, a telephone book function for searching various information such as a telephone number from the other party's name, and a calling processing to the other party selected by the telephone book function are performed.

Next, the operation of the key telephone will be described with reference to FIG. FIG. 4 is a flowchart showing a handset control process in the handset control unit 22 of the key telephone. The slave unit controller 22 controls the control memory 2 according to the start of power supply.
The control information stored in 5 is initialized and the various circuit parts are initialized (step 50), and the process proceeds to the event loop process including steps 51 to 62. First, transmission I /
The F unit 21 is instructed to transmit / receive data to / from the main device 1, and transmission of the transmission data generated in the previous event loop processing and reception of new reception data are performed (step 51).

Of the reception data received by the transmission I / F unit 21, the voice information is output to the voice processing unit 23, and the control information and the display information are taken into the slave unit control unit 22. The slave unit control unit 22 analyzes the below-described commands and detailed data that make up the received data that have been taken in, and updates various control information in the control memory 25 (step 52). In the received data analysis process, when the received data is the mode switching instruction, the mode switching process of FIG. 5A is performed. Here, it is determined whether or not the received mode switching instruction instructs switching to the CTI mode (step 6
3) When instructing to switch to the CTI mode (step 63: YES), the mode information indicating its own operation mode in the control memory 25 is set to CTI (step 6).
4) When instructing to switch to the TEL mode (step 63: NO), the mode information is set to TEL (step 65).

In the received data analysis processing, if the received data is display information, the display management means 22A.
Thus, the display information receiving process of FIG. 5B is performed. Here, it is judged whether or not the received display information is from the main device 1 (step 66), and if it is the display information from the main device 1 (step 66: YES), the display information is the TEL screen memory. 26A (step 67), and if it is the display information from the server 3 (step 66:
NO), the display information is stored in the CTI screen memory 26B (step 68).

The display information from the main unit 1 is composed of general character data indicating a display character or a design. The display information from the server 3 is HTML as shown in FIG.
(Hypertext Markup Languag
e) and SGML (Standard Generali)
zed Markup Language) and other markup description languages, and multimedia contents such as image information and audio information are read out from the file data included in the display information as needed, and image display or text information is displayed. Sound is output. Thus, in the display management means 22A of the key telephone 2,
In the CTI mode, since the information configured in the markup description language is displayed, it is possible to perform advanced expressions on the key telephone and to greatly improve the user interface.

In step 52 of FIG. 4, various kinds of control information in the control memory 25 and the TEL screen memory 26A or the CTI screen memory 2 are subjected to such received data analysis processing.
After updating the display information in 6B, the LED drive control is performed based on various control information in the control memory 25 (step 53), and the voice input / output control for the voice processing unit 23 is performed (step 54). Also, the display management means 22
By A, it is determined whether or not the operation mode of the own device is the TEL mode (step 55). If the operation mode is the TEL mode (step 55: YES), the display information in the TEL screen memory 26A is displayed on the screen display unit 27 ( Step 56), CTI
In the case of the mode (step 55: NO), the display information in the CTI screen memory 26B is displayed on the screen display section 27, and the audio processing section 23 outputs an audio signal as needed (step 57).

Next, in the slave unit control unit 22, the operation input unit 2
Various key operations and hook states are fetched from step 4 (step 58), and the operation information generation means 22B generates operation information according to its own operation mode. Operation information generating means 2
In 2B, it is judged whether or not the self is in the TEL mode (step 59), and if it is in the TEL mode (step 59: YE
S), referring to the above-mentioned TEL mode column of the command and detailed data corresponding to the fetched operation, the operation information is generated (step 60), and in the CTI mode (step 59: NO), it is fetched. The operation information is generated by referring to the CTI mode column of FIG. 3 for the command and detailed data corresponding to the operation (step 61).

In this way, various operations detected by the operation input unit 24 are converted into corresponding operation information, and transmission data including a command and detailed data is generated (step 62). Then, returning to step 51, the next event loop processing is started, and the data transmission I / F
It is transmitted from the unit 21 to the main device 1. Although each process in the event loop process is described as being performed in the process order shown in FIG. 4, the process is not limited to this, and an external interrupt, a timer interrupt, or the like to the slave unit control unit 22 may be performed. As a trigger, each processing may be performed as needed or periodically.

Next, the operation of the data transfer means 12C in the main controller 12 of the main unit 1 will be described. FIG. 7 is an explanatory diagram showing a configuration example of information exchanged between the main device 1, the key telephone 2, and the server 3. FIG. 7A shows
An example of the format of information exchanged between the main unit 1 and the key telephone 2 is shown.
It is composed of A and detailed data 28B. Similar to the operation information of FIG. 3 described above, the command 28A indicates the content of the instruction (or request) indicated by the information, and the detailed data 28B indicates the detailed content of the command.

FIG. 7B shows a format example of information exchanged between the main device 1 and the server 3,
Telephone ID 28C is added to the format of FIG. Since information is exchanged between the main device 1 and the key telephone 2 by using the individual extension transmission lines 20, it is not necessary to specify the transmission destination or the reception destination of the information. If the system is not such a system but manages its own ID in each key telephone 2, FIG.
The format as shown in (b) may be used. On the other hand, a common data communication path 30 is used between the main device 1 and the server 3.
Since information is exchanged by using, the destination or destination of the information needs to be specified, and such data transfer processing is performed by the data transfer means 12C of the main controller 12.

FIG. 8 is a flow chart showing the data transfer processing regarding the information received from the key telephone. In the data transfer means 12C of the main control unit 12, the key telephone 2
When the information is received from the device, a command is first obtained from the received data (step 70), and it is determined based on the type information whether the information is for use by the functional processing means 12A of the main device 1 (step). 71). If the received data is information to be used by the functional processing means 12A (step 71: YES), the received data is taken in and analyzed (step 72), and the corresponding functional processing is performed by the functional processing means 12A. Execute (step 73).
If it is not the information to be used by the function processing means 12A (step 71: NO), as shown in FIG. 7B, the received telephone data is the key telephone 2 which is the transmission source.
The telephone ID 28C is added (step 74) and transmitted to the server 3 (step 75).

FIG. 9 is a flow chart showing the data transfer processing relating to the information received from the server. Main controller 1
When the information is received from the server 3, the data transfer means 12C of No. 2 first acquires a command from the received data (step 80), and the information is used by the function processing means 12A of the main device 1 based on the type information. It is determined whether or not it is for the purpose (step 81).

FIG. 10 is an explanatory diagram showing an example of the structure of information transmitted from the server, which, as shown in FIG. 7B, is composed of commands, telephone IDs, and detailed data. For example, the information instructing to display the telephone directory list includes a command “40” corresponding to the instruction, a telephone ID indicating the destination of the information, and detailed data indicating the actual telephone directory listing data. If the received data is information to be used by the function processing means 12A (step 81: YES), the received data is fetched and analyzed (step 82), and the corresponding function processing is performed by the function processing means 1
2A is executed (step 83).

If the transmission data to the key telephone 2 is newly generated by the function processing in the function processing means 12A (step 84: YES), the transmission buffers in the extension I / F section 13 are stored. Among them, the transmission data is stored in the transmission buffer corresponding to the telephone ID of the key telephone 2 (step 87). As a result, the transmission data is read from the transmission buffer and transmitted to the extension transmission line 20 to which the key telephone 2 of the transmission destination is connected (step 88). If no new transmission data is generated (step 84: NO), the process ends.
On the other hand, if the received information is not the information to be used by the function processing means 12A (step 81: NO), then FIG.
As shown in (a), the telephone ID from the received data
Is deleted (step 74) and the process proceeds to step 87.
As a result, the received data is transferred to the key telephone 2 corresponding to the telephone ID.

In this way, the data transfer means 1 is added to the main device 1.
2C is provided so that the operation information from the key telephone can be transferred to the server 3 as necessary and the information from the server 3 can be transferred to the corresponding key telephone 2. Therefore, in the main controller 12 of the main device 1, It is not necessary to take in all the information and analyze it, and the processing load on the main control unit 12 can be reduced, and a large amount of data can be transmitted from the server 3 to the key telephone 2 at a higher speed, making it possible to wait abundant information for a short time. The time can be displayed on the key telephone 2.

Further, the data transfer means 12C determines whether or not the information needs to be transferred on the basis of the command indicating the instruction content of the received information. Therefore, in the information transmitted from the key telephone 2 or the server 3, It is not necessary to separately include transfer destination information for designating the transfer destination of the information, and it is possible to judge the necessity of transfer without increasing the capacity of the information to be exchanged. Further, in the data transfer means 12C, the telephone ID is added depending on the sender of the received data, or the telephone ID is deleted and transmitted to the corresponding extension transmission line. Therefore, the main device 1 and the key telephone 2
Information of each key telephone 2 can be mixed and communicated between the main device 1 and the server 3 without increasing the amount of information exchanged between the main device 1 and the server 3.

Next, with reference to FIG. 11, the operation of the entire key telephone system according to the present invention will be described by taking a telephone directory calling operation as an example. FIG. 11 is a sequence diagram showing a telephone directory calling operation for calling from the key telephone using the database of the server. First, when the telephone directory key is pressed on the key telephone 2A operating in the TEL mode (step 100), this operation is detected by the operation input unit 24, and the operation information corresponding thereto is generated by the operation information generating means 22B. , Is transmitted from the transmission I / F unit 21 to the main device 1 via the extension transmission line 20 (step 101).

In the main unit 1, the extension I / F section 13 receives the operation information, and the data transfer means 12C judges whether or not the information is used by the function processing means 12A based on the command. Here, since it is the information used by the function processing means 12A, the operation information is fetched, and the function processing means 12A is fetched.
To execute the phonebook function. First, a telephone book display request for requesting transmission of telephone book list data addressed to the key telephone 2A is transmitted to the server 3 via the communication I / F unit 15 and the data communication path 30 (step 102).

Before and after this, the mode management means 12B registers that the key telephone 2A has shifted to the CTI mode, and the extension I / F unit 13 sends the key telephone 2A to the key telephone 2A via the extension transmission line 20. A CTI mode instruction for instructing switching to (step 10
3). The key telephone 2A receives this CTI mode instruction via the transmission I / F unit 21 at time T1, and switches its own operation mode from the TEL mode to the CTI mode.

The server 3 receives the phonebook display request via the communication I / F unit 31, and the server control unit 32A reads out desired phonebook list data from the database 33.
The telephone ID of the key telephone 2A indicating that the information is related to the key telephone 2A is added to the communication I / F unit 3
1 to the main device 1 via the data communication path 30 (step 104). In the main device 1, the communication I / F unit 15
This telephone directory list data is received via the data transfer means 12C, the data transfer means 12C confirms the command, and the function processing means 12
It is determined whether or not the information is used in A. In this case, since it is not the information used by the function processing means 12A, it is transferred to the key telephone 2A of the telephone ID added to the telephone directory list data.

As a result, the telephone directory data is directly transferred from the server 3 to the key telephone 2A via the main unit 1 and is received by the key telephone 2A. The display management means 22A of the key telephone 2A judges from the command of the received data that the telephone directory list data is from the server 3, stores this in the CTI screen memory 26B, and in the subsequent display processing, the self-CTI. Since it is in the mode, the telephone directory list data stored in the CTI screen memory 26B is read and displayed on the screen display unit 27. FIG. 12 is a screen display example of the telephone directory list data.

On the button telephone 2A, the cursor (see the white display portion in FIG. 12) is moved by operating the arrow keys (step 105). Operation information generating means 22B
Generates operation information indicating the arrow key operation in the CTI mode in response to these operations and transmits it to the main device 1 (step 106). Data transfer means 12B of main device 1
Then, based on the received command of the operation information, it is determined that these pieces of information are not used by the function processing means 12A, and the information is transferred to the server 3.

As a result, the operation information is directly transferred from the key telephone 2A to the server 3 via the main unit 1.
Then, the telephone corresponding means 32A of the server 3 receives the operation information from the key telephone 2A, and the destination information selected by the cursor of the key telephone 2A is sequentially updated based on the operation contents. Further, the updated contents are retransmitted to the key telephone 2, and the telephone directory list data in which the cursor is moved is displayed on the screen display unit 27 of the key telephone 2A as described above. Button telephone 2A
Then, when the call destination is determined by pressing the confirm key (step 107), the operation information generating means 22B:
Operation information indicating the enter key operation in the CTI mode is generated and transmitted to the main device 1 (step 108).

The data transfer means 12C of the main unit 1 transfers this operation information to the server 3 because it is not the information used by the function processing means 12A. In the telephone-corresponding means 32A of the server 3, since the received operation information indicates the confirmation key operation, the telephone number of the destination selected at the button telephone 2A at that time is read from the database and the telephone number is set as the destination. An outside call request including the telephone ID of the key telephone 2A is sent to the main device 1 (step 109).

In the main unit 1, since the call origination request received by the data transfer means 12C is the information used by the function processing means 12A, it is fetched, the function processing means 12A controls the outside line I / F section 11, and the A calling process using the telephone line 10 to the destination specified by the calling request is performed (step 110). After that, when the response to the other party is detected by the outside line I / F unit 11 (step 111), the mode management means 12B of the main unit 1 registers that the key telephone 2A has shifted to the TEL mode, and the key telephone 2A. A TEL mode instruction is transmitted to (step 112).

As a result, at time T2, the key telephone 2A is switched from the CTI mode to the TEL mode. Around this time, the function processing means 12A notifies the key telephone 2A of the other party's response and enters the speaker receiving state (step 113), and the communication path between the telephone line 10 and the key telephone 2A is connected by the main unit 1, An outside line call with the destination is started (step 114). Further, the display data indicating that the outside line is being transmitted, which is received from the main device 1 and stored in the TEL screen memory 26A prior to the TEL mode instruction, is displayed on the screen display unit 27.

Next, with reference to FIG. 13, the operation of the entire key telephone system according to the present invention will be described by taking the callee display operation as an example. FIG. 13 is a sequence diagram showing a callee display operation for displaying callee information on the key telephone using the database of the server. First, when an incoming call from the telephone line 10 is detected by the outside line I / F unit 11 and the destination telephone number is notified from the telephone line 10 (step 120), the function processing means 12A of the main device 1 sends the outside line to the outside line. The incoming call notification is transmitted to the key telephone capable of responding to the incoming call, such as the key telephone 2A (step 121).
In response to this, the ring tone is output on the key telephone 2A,
The outside line incoming display state is set.

When the off-hook operation is performed here (step 122), operation information indicating the off-hook operation is transmitted from the key telephone 2A to the main device 1 (step 123). The data transfer means 12C of the main device 1 takes in the received operation information because it is the information used by the function processing means 12A. The function processing means 12A determines that this operation information is an operation for responding to an incoming call to an outside line, seizes the telephone line 10 and responds to the incoming call to the outside line (step 12)
4).

If the key telephone 2A is in the CTI mode, the mode managing means 12B sends a CTI mode instruction to the key telephone 2A that has responded (step 12).
5). As a result, at time T3, the key telephone 2A
Transition from TI mode to TEL mode. Then, the communication path between the telephone line 10 and the key telephone 2A is connected by the main device 1, and the communication between the two is started (step 126).
Further, when the calling party is specified by the notification from the network side, the party data indicating the calling party is sent from the function processing unit 12A to the key telephone 2A prior to the TEL mode instruction.
May be transmitted to. As a result, the destination data is received by the key telephone 2A and stored in the TEL screen memory 26A, and the destination data is displayed on the screen display unit 27 as shown in the screen display example of FIG.

After that, when the off-hook operation is performed on the key telephone 2A (step 130), the operation information indicating the off-hook is transmitted from the key telephone 2A to the main unit 1 (step 131). Function processing unit 12 of main device 1
In A, based on this operation information, the key telephone 2
The telephone line 10 that was in a call state with A is released to end the call (step 132). If the key telephone 2A is in the CTI mode at the time of answering the incoming call, a CTI mode instruction is transmitted to the key telephone 2A (step 13).
3). As a result, at the time T4, the key telephone 2
A is switched to the original CTI mode, and the display content stored in the CTI screen memory 26B is displayed on the screen display unit 27.

[0055]

As described above, according to the present invention, as the operation mode of the key telephone, in addition to the TEL mode in which the information transmitted from the main device is displayed to operate, the information processing terminal can be operated from the information processing terminal via the main device. Since the CTI mode that operates by displaying the transmitted information is provided, various information stored in the database of the information processing terminal can be directly displayed on the screen of the key telephone without increasing the processing load of the main device. . Therefore, unlike the conventional system, it is not necessary to provide an information processing terminal for each button telephone or to provide the main device with means for converting the information of the information processing terminal and delivering it to the button telephone. Various services using abundant information can be provided without increasing the number of services.

[Brief description of drawings]

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

FIG. 2 is an explanatory diagram showing an example of key arrangement of a key telephone.

FIG. 3 is an explanatory diagram showing an example of correspondence between operations and operation information in each operation mode.

FIG. 4 is a flowchart showing a handset control process in the key telephone.

FIG. 5 is a flowchart showing a mode switching process and a display information receiving process in the key telephone.

FIG. 6 is an explanatory diagram showing an example of display information in a markup description language.

FIG. 7 is an explanatory diagram showing a configuration example of information exchanged between the main device, the key telephone, and the server.

FIG. 8 is a flowchart showing a data transfer process regarding information received from a key telephone.

FIG. 9 is a flowchart showing a data transfer process regarding information received from a server.

FIG. 10 is an explanatory diagram showing a configuration example of information from a server.

FIG. 11 is a sequence diagram showing a telephone directory calling operation.

FIG. 12 is a screen display example of phonebook list data.

FIG. 13 is a sequence diagram showing a display operation of the called party.

FIG. 14 is a screen display example of partner data.

FIG. 15 is a block diagram showing a configuration of a conventional CTI system.

[Explanation of symbols]

1 ... Main device, 10 ... Telephone line, 11 ... External line I / F section, 1
2 ... Main control part, 12A ... Function processing means, 12B ... Mode management means, 12C ... Data transfer means, 13 ... Extension I / F
Section, 14 ... Main storage section, 15 ... Communication I / F section, 2, 2A ...
2N ... Button telephone, 20 ... Extension transmission line, 21 ... Transmission I
/ F section, 22 ... Slave unit control section, 22A ... Display management means, 2
2B ... Operation information generating means, 23 ... Voice processing section, 24 ... Operation input section, 25 ... Control memory, 26A ... TEL screen memory, 26B ... CTI screen memory, 27 ... Screen display section, H
S ... Handset, SP ... Speaker, 3 ... Server, 30
... data communication path, 31 ... communication I / F section, 32 ... server control section, 32A ... telephone corresponding means, 33 ... database,
34 ... Server storage unit.

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-7-264306 (JP, A) JP-A-8-223622 (JP, A) JP-A-11-74976 (JP, A) JP-A-8- 79830 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04Q 3/58 107 H04M 3/42

Claims (5)

(57) [Claims] 1. 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 kinds of information, and the main unit via an extension transmission path. And one or more key telephones having a screen display unit for displaying various information, and the key telephones operate by displaying the information generated and transmitted by the main device on the screen display unit. A button having a slave unit control unit that operates in either a TEL mode or a CTI mode in which information transmitted from the information processing terminal via the main device is displayed on the screen display unit and operated. Telephone system. 2. The key telephone system according to claim 1, wherein the key telephone receives and stores information from the main device and a TEL screen memory, and receives and stores information from the information processing terminal. CTI screen memory and display for reading and displaying information from the TEL screen memory when its own operation mode is the TEL mode, and for reading and displaying information from the CTI screen memory when its own operation mode is the CTI mode A button telephone system having a management means. 3. The button telephone system according to claim 2, wherein the display management unit reads out information in a markup description language transmitted from the information processing terminal from the CTI screen memory and displays the information on the screen display unit. A button telephone system characterized by: 4. The key telephone system according to claim 1, wherein the main unit sends an operation mode to the key telephone based on operation information transmitted from the key telephone in response to the operation or the state of the telephone line. And a mode management unit that stores and manages the operation mode of the key telephone, and the slave unit control unit changes its own operation mode based on an instruction from the main device. Button phone system to do. 5. The key telephone system according to claim 1, wherein the main device transfers operation information from the key telephone to the information processing terminal as necessary and handles information from the information processing terminal. A key telephone system having a data transfer means for transferring to a key telephone.