JP2001197533A - Key telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a key telephone system that conducts a variety of services by using abundant information without increasing the scale of a system configuration. SOLUTION: A slave unit control section 22 of a key telephone system 2 conducts processing in a TEL mode where information generated and sent by a master unit 1 is displayed on an image display section 27 for the operation or ion a CTI mode where the image display section 27 displays the information sent from the server 3 via the master unit 1 for the operation. A display management means 22A of the slave unit control section 22 distinguishingly stores display information received from the master unit 1 and display information received from the server 3 to a TEL menu memory 26A and a CTI menu memory 26B respectively and reads the display information from the corresponding menu memory depending on its own operating mode and allows the menu display section 27 to display the information.

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. 2. Description of the Related Art 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 (hereinafter, referred to as a PC terminal) such as a personal computer is connected to a main device to provide advanced functions. CTI (Comp
Uter Telephony Integration
n) The system is becoming popular.

FIG. 15 is a block diagram showing a 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 work place is registered as a database in correspondence with the telephone number of the other party. In each of the PC terminals 97A to 97N, L
A list of database information of the server 95 connected via the AN line 96 can be displayed on the screen and searched, and a call can be made to the searched destination. For example, the PC terminal 97
When a call operation is performed to a destination selected from 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, 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 database on the basis of the notified caller telephone number, and stores the obtained personal information on the caller in the PC terminal associated with the external telephone call, for example, the key telephone 93A. 97A is displayed on the screen.

[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, reduces the cost of the system itself. And the work load required for management and maintenance also increased. An object of the present invention is 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, and one or more key telephones connected to the main device via an extension transmission line and having a screen display unit for displaying various information; The control unit operates by displaying information generated and transmitted by the main device on the screen display unit and operates by displaying information transmitted from the information processing terminal via the main device on the screen display unit. It operates in one of the CTI modes. Therefore, not only the information generated by the main device but also the information of the information processing terminal is displayed on the screen display unit of the key telephone.

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

The main unit is provided with mode management means for the operation mode of the key telephone, and instructs the key telephone to switch the operation mode based on operation information transmitted from the key telephone in response to the operation or the state of the telephone line. In addition, the operation mode of the key telephone may be stored and managed, and the slave unit control unit may change its own operation mode based on an instruction from the main device. Further, a data transfer unit may be provided in the main device, and the operation information from the key telephone may be transferred to the information processing terminal as needed, and the information from the information processing terminal may be transferred to the corresponding key telephone.

[0010]

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 a database for storing various information. Hereinafter, a key telephone system in which a plurality of telephone lines 10 are connected and a plurality of key telephones 2 are connected will be described as an example. However, the present invention is not limited to this. The present invention can be applied to a single key telephone.

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 transmitting data to and from 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 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 composed of a hard disk device, etc. (Accumulation unit) 32 in which various kinds of information are stored, retrieves desired information from the database 33 in response to a request from the main device 1,
Server control unit for transmitting via communication I / F unit 31;
Denotes a server storage unit that stores information necessary for processing in the server control unit 32.

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 audio information received by the transmission I / F unit 21 into an audio signal. Handset H
S and a speaker SP, an audio processing unit that encodes an audio signal input from the handset HS into audio information and outputs it to the transmission I / F unit, and 24 is an operation input unit that detects various key operations and hook states is there.

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

In the present invention, the key telephone 2 is provided with two operation modes, a TEL mode and a CTI mode, and each of the key telephones individually operates in one of the modes. The TEL mode is a mode in which information generated by the main device 1 is displayed on the screen display unit 27 of the key telephone, similarly to a key telephone in a conventional key telephone system. On the other hand, in the CTI mode, the server 3
Is a mode in which information stored in the database 33 is displayed on the screen display unit 27. In particular, in the CTI mode, various kinds of information are directly exchanged between the server 3 and the key telephone 2.

As described above, the main unit 1 is connected to the key telephone 2.
In addition to the TEL mode for displaying and transmitting information transmitted from the server 3 on the screen display unit 27, a CTI mode for displaying and operating information transmitted from the server 3 via the main device 1 on the screen display unit 27 is provided. Therefore, various information possessed by the server 3 can be displayed on the screen of the key telephone 2 directly. 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.

The information displayed on the screen display unit 27 differs between the TEL mode and the CTI mode.
Has 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. The handset 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 the information on the screen display unit 27. As described above, different screen memories are provided corresponding to the respective operation modes, and information displayed in each operation mode is individually managed. The burden can be reduced.

FIG. 2 is an explanatory diagram showing an example of a key arrangement of the key telephone set. A cursor displayed on the screen display unit 27 is moved just below the screen display unit 27 as a screen operation key group 24A. Arrow keys, a confirmation key for confirming input of choices of the cursor position, a table of contents key for displaying various contents, and a telephone directory key for displaying a telephone directory. Below that, a telephone function key group 2
4B, an external line key for selectively capturing a telephone line,
Extension key for extension calls, monitor key for speaker reception,
A redial key for redial transmission and a speed key for speed dial transmission are arranged. A dial key 24C for inputting a dial number is arranged below the dial key 24C.

Either information from the main unit 1 or information from the server 3 is displayed on the screen display unit 27 of the key telephone 2 in accordance with 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. Remote control unit 2 of key telephone 2
2 is provided with an operation information generating means 22B for converting the operation input detected by the operation input unit 24 according to its own operation mode and transmitting it in a predetermined format.

The screen operation key group 24A and the 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 on these keys is transmitted to the main device 1 in the case of the TEL mode,
In the case of the CTI mode, it is necessary to transmit to the server 3. At this time, these keys are operated in substantially the same manner 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 in each operation mode and operation information. Each operation information includes a command and detailed data. The command indicates the content of each operation, and those having the same operation meaning are assigned to the same command. The detailed data is information for finer classification in the same command. In the operation information generating means 22B, a screen operation key group 24A
And the dial key 24C are converted into different operation information in the TEL mode and the CTI mode. For example, the arrow key “←” is used for the command “0” in the TEL mode.
2 ”+ detailed data“ 00 ”. In the CTI mode, even the same key operation is converted into different operation information based on the display content of the screen display unit 27, or a plurality of key operations are converted into one operation information.

The operation mode of the key telephone 2 depends on the main unit 1
It is switched by a mode switching instruction from. Main device 1
The main control unit 12 is provided with 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 performed 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 registration state of the operation mode is updated. The handset control unit 22 of the key telephone 2 switches its own operation mode according to these mode switching instructions.

As described above, the mode management means 1
2B, based on the operation information transmitted from the key telephone 2 and a change in the state of the telephone line 10, the key telephone 2
The operation mode of the key telephone is stored and managed, and the slave unit control unit 22 of the key telephone 2 changes the operation mode based on the instruction from the mode management unit 12B. The information stored in the database 33 of the server 3 is transmitted to the key telephone 2
When it is determined that it is necessary to display the operation mode, the operation mode of each key telephone 2 can be switched and controlled from the main device 1, and information from the server 3 can be displayed on the key telephone 2 flexibly and efficiently according to various functions. .

The main control section 12 of the main device 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 unit 12A executes various function processes including functions of a general key telephone device. As this function processing, for example,
There are exchange control processing such as outgoing call and incoming call response performed in response to an operation on the key telephone 2 or 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.
The information includes, for example, information transmitted from the server 3 to the predetermined key telephone 2 in the CTI mode, a request for transmission of desired information from the key telephone 2 to the server 3 and various processing requests. There is information that does not need to be processed by the processing unit 12A.

The server control section 32 of the server 3 is provided with telephone correspondence 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 device 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 directory function for searching for various information such as a telephone number from a destination name, a calling process to a destination selected by the telephone directory function, and the like are performed.

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

[0027] Of the data received by the transmission I / F unit 21, audio information is output to the audio processing unit 23, and control information and display information are taken into the slave unit control unit 22. The slave unit control unit 22 analyzes the later-described commands and detailed data constituting the received data and updates various control information in the control memory 25 (step 52). In the received data analysis process, if the received data is a 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 switching to the CTI mode is instructed (step 63: YES), mode information indicating its own operation mode in the control memory 25 is set in the CTI (step 6).
4) When switching to the TEL mode is instructed (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
As a result, the display information receiving process of FIG. 5B is performed. Here, it is determined whether or not the received display information is from the main device 1 (step 66). If the received display information is from the main device 1 (step 66: YES), the display information is stored in the TEL screen memory. 26A (step 67), and if it is 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 display characters and designs. The display information from the server 3 is, as shown in FIG.
(Hypertext Markup Language)
e) and SGML (Standard Generali)
multimedia information such as image information and audio information is read from the file data included in the display information as necessary, and is displayed together with the character information. Voice output. Thus, in the display management means 22A of the key telephone 2,
In the CTI mode, information configured in the markup description language is displayed, so that a high-level expression can be made with a key telephone, and the user interface is greatly improved.

In step 52 of FIG. 4, such received data analysis processing is performed to obtain various control information in the control memory 25, the TEL screen memory 26A or the CTI screen memory 2.
After updating the display information in 6B, based on various kinds of control information in the control memory 25, LED drive control is performed (step 53), and voice input / output control to the voice processing unit 23 is performed (step 54). Also, the display management means 22
A, it is determined whether 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 55). Step 56), CTI
In the case of the mode (step 55: NO), display information in the CTI screen memory 26B is displayed on the screen display unit 27, and an audio signal is output from the audio processing unit 23 as necessary (step 57).

Next, in the slave unit control unit 22, the operation input unit 2
Then, various key operations and hook states are fetched from Step 4 (Step 58), and the operation information generating means 22B generates operation information according to the own operation mode. Operation information generating means 2
In 2B, it is determined whether or not itself is in the TEL mode (step 59), and if it is in the TEL mode (step 59: YE).
S), operation information is generated by referring to the TEL mode column of FIG. 3 described above with respect to the command and the detailed data corresponding to the fetched operation (step 60), and in the case of the CTI mode (step 59: NO), Command information and detailed data corresponding to the operation are generated with reference to the CTI mode column of FIG. 3 (step 61).

In this way, various operations detected by the operation input unit 24 are converted into corresponding operation information, and transmission data including commands 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 the respective processes in the event loop process have been described as being performed in the processing order shown in FIG. 4, the present invention is not limited to this. For example, an external interrupt or a timer interrupt to the slave unit control unit 22 may be performed. Each processing may be performed as necessary or periodically as a trigger.

Next, the operation of the data transfer means 12C in the main control section 12 of the main device 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. 7 (a)
An example of the format of information exchanged between the main device 1 and the key telephone 2 is shown.
A and detailed data 28B. The command 28A indicates the content of the instruction (or request) indicated by the information, similarly to the operation information of FIG. 3, and the detailed data 28B indicates the detailed content of the command.

FIG. 7B shows an example of the format of information exchanged between the main device 1 and the server 3.
A telephone ID 28C is added to the format of FIG. Since information is exchanged between the main device 1 and the key telephone 2 using the respective extension transmission lines 20, there is no need to specify the transmission destination or the reception destination of the information. Note that if the ID is managed by each key telephone 2 instead of such a method, FIG.
A format as shown in (b) may be used. On the other hand, a common data communication path 30 is provided between the main device 1 and the server 3.
Since the information is exchanged by using the data transfer destination, it is necessary to specify the transmission destination or the reception destination of the information, and such data transfer processing is performed by the data transfer unit 12C of the main control unit 12.

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

FIG. 9 is a flowchart showing a data transfer process for information received from the server. Main control unit 1
When the information is received from the server 3, the second data transfer means 12C first obtains a command from the received data (step 80), and uses the information in 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. As shown in FIG. 7B, the information is composed of commands, telephone IDs, and detailed data. For example, the information instructing the display of the telephone directory list includes a command “40” corresponding to the instruction, a telephone ID indicating a transmission destination of the information, and detailed data indicating actual telephone directory list data. If the received data is information to be used by the function processing unit 12A (step 81: YES), the received data is fetched and analyzed (step 82), and the corresponding function processing is performed by the function processing unit 1A.
Execute at 2A (step 83).

When data to be transmitted to the key telephone 2 is newly generated by the function processing in the function processing means 12A (step 84: YES), the transmission buffer of the extension I / F 13 is provided. 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 has been 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 unit 12A (step 81: NO), FIG.
As shown in (a), the telephone ID is obtained from the received data.
Is deleted (step 74), and the process proceeds to step 87.
As a result, the received data is transferred to key telephone 2 corresponding to the telephone ID.

As described above, the data transfer means 1
2C, the operation information from the key telephone is transferred to the server 3 as necessary, and the information from the server 3 is transferred to the corresponding key telephone 2. Therefore, the main control unit 12 of the main device 1 It is not necessary to take in all the information and perform the analysis processing, thereby reducing the processing load on the main control unit 12, transmitting a large amount of data from the server 3 to the key telephone 2 at a higher speed, and waiting for abundant information in a short time. The time can be displayed on the key telephone 2.

Further, the data transfer means 12C determines whether or not the transfer of the information is necessary based on the command indicating the instruction content of the received information, so that the information transmitted from the key telephone 2 or the server 3 includes It is not necessary to separately include transfer destination information for designating the transfer destination of the information, and it is possible to determine whether transfer is necessary without increasing the capacity of the exchanged information. Further, in the data transfer means 12C, the telephone ID is added or the telephone ID is deleted according to the transmission source of the received data, and the data is transmitted to the corresponding extension transmission line.
The 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 with the key telephone.

Next, the operation of the entire key telephone system according to the present invention will be described with reference to FIG. FIG. 11 is a sequence diagram showing a telephone directory transmission operation performed 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 corresponding operation information is generated by the operation information generation unit 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 operation information is received by the extension I / F unit 13, and the data transfer unit 12C determines whether the information is used by the function processing unit 12A based on the command. Here, since the information is used by the function processing unit 12A, the operation information is fetched and the function processing unit 12A
To execute the phonebook function. First, a telephone directory display request for requesting transmission of telephone directory 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 or 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 CTI mode to the key telephone 2A via the extension transmission line 20. (Step 10)
3). The key telephone 2A receives the 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 telephone directory display request via the communication I / F unit 31, and the server control unit 32A reads desired telephone directory list data from the database 33.
The communication I / F unit 3 adds the telephone ID of the key telephone 2A indicating that the information is related to the key telephone 2A.
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
The telephone directory list data is received via the data transfer unit 12C, and the command is confirmed by the data transfer unit 12C.
It is determined whether the information is used in A. In this case, since the information is not information used by the function processing unit 12A, the information is transferred to the key telephone 2A of the telephone ID added to the telephone directory list data.

Thus, the telephone directory list data is directly transferred from the server 3 to the key telephone 2A via the main device 1, and received by the key telephone 2A. The display management means 22A of the key telephone 2A determines from the command of the received data that the telephone directory list data is from the server 3 and stores it in the CTI screen memory 26B. Since the mode is 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 telephone directory list data.

In the key telephone 2A, the cursor (see the white display 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 corresponding to these operations, and transmits the operation information 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 the information is not used by the function processing unit 12A, and is transferred to the server 3.

Thus, the operation information is directly transferred from key telephone 2A to server 3 via main device 1.
Then, the operation information from the key telephone 2A is received by the telephone corresponding means 32A of the server 3, and the other party information selected by the cursor of the key telephone 2A is sequentially updated based on the operation content. Further, the updated contents are retransmitted to the key telephone 2 and the telephone directory list data with the moved cursor is displayed on the screen display unit 27 of the key telephone 2A in the same manner as described above. Key telephone 2A
Then, when the destination is determined by pressing the enter key (step 107), the operation information generating means 22B
Operation information indicating the confirmation 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 device 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 correspondence means 32A of the server 3, since the received operation information indicates the decision key operation, the telephone number of the destination selected by the key telephone 2A at that time is read from the database, and the telephone number is set as the destination. An external line transmission request including the telephone ID of the key telephone 2A is transmitted to the main device 1 (step 109).

In the main unit 1, since the transmission request received by the data transfer means 12C is information used by the function processing means 12A, it is fetched and controlled by the function processing means 12A to control the external line I / F section 11. An outgoing call using the telephone line 10 is performed to the other party specified in the outgoing call request (step 110). Thereafter, when a response to the other party is detected by the outside line I / F unit 11 (step 111), the mode management unit 12B of the main device 1 registers that the key telephone 2A has shifted to the TEL mode, and registers the key telephone 2A. A TEL mode instruction is transmitted to (Step 112).

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

Next, the operation of the entire key telephone system according to the present invention will be described with reference to FIG. 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 external line I / F unit 11 and the other party's telephone number is notified from the telephone line 10 (step 120), the function processing unit 12A of the main device 1 sends the call to the external line. An incoming call notification is transmitted to a key telephone, such as the key telephone 2A, which can respond to the incoming call (step 121).
In response, the ring tone is output from the key telephone 2A,
The outside line incoming call display state is set.

When the off-hook operation is performed (step 122), operation information indicating the off-hook operation is transmitted from key telephone 2A to main device 1 (step 123). The data transfer unit 12C of the main device 1 takes in the received operation information because it is information used by the function processing unit 12A. The function processing unit 12A determines that the operation information is a response operation to the incoming call to the outside line, captures 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 management means 12B transmits a CTI mode instruction to the responding key telephone 2A (step 12).
5). Thus, at time T3, the key telephone 2A
The mode shifts from the TI mode to the 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 them is started (step 126).
Also, when the calling party is specified by a notification from the network, prior to this TEL mode instruction, the destination data indicating the calling party is transmitted from the function processing unit 12A to the key telephone 2A.
It 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.

Thereafter, when an off-hook operation is performed on key telephone 2A (step 130), operation information indicating this off-hook is transmitted from key telephone 2A to main unit 1 (step 131). Function processing unit 12 of main device 1
In A, the key telephone 2
The telephone line 10 that was in a call with A is released and the call is terminated (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). Thus, at time T4, the key telephone 2
A is switched to the original CTI mode, and the display contents stored in the CTI screen memory 26B are displayed on the screen display unit 27.

[0055]

As described above, according to the present invention, in addition to the TEL mode in which the information transmitted from the main unit is displayed and operated as the operation mode of the key telephone, the operation mode of the key telephone is controlled by the information processing terminal via the main unit. Since the CTI mode for displaying and operating 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 on the main device. . 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 an explanatory diagram showing an example of a key arrangement of a key telephone.

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

FIG. 4 is a flowchart showing a slave unit 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 a main device, a key telephone, and a server.

FIG. 8 is a flowchart showing a data transfer process relating to information received from the key telephone.

FIG. 9 is a flowchart showing a data transfer process relating to 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 transmission operation.

FIG. 12 is a screen display example of telephone directory list data.

FIG. 13 is a sequence diagram showing a call destination display operation.

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

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

[Description of Signs] 1 ... Main unit, 10 ... Telephone line, 11 ... Outline I / F unit, 1
2 ... Main control unit, 12A ... Function processing unit, 12B ... Mode management unit, 12C ... Data transfer unit, 13 ... Extension I / F
Unit, 14: main storage unit, 15: communication I / F unit, 2, 2A-
2N: button telephone, 20: extension line, 21: transmission I
/ F section, 22: slave unit control section, 22A: display management means, 2
2B: operation information generating means, 23: voice processing unit, 24: operation input unit, 25: control memory, 26A: TEL screen memory, 26B: CTI screen memory, 27: screen display unit, H
S: handset, SP: speaker, 3: server, 30
... data communication path, 31 ... communication I / F section, 32 ... server control section, 32A ... telephone correspondence means, 33 ... database,
34: Server storage unit.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takayuki Natori 2-3-3 Shimomeguro, Meguro-ku, Tokyo F-term in Tamura Electric Co., Ltd. (Reference) 5K024 AA01 AA11 AA71 BB04 CC04 CC09 CC14 DD01 DD02 DD04 FF03 GG03 GG05 5K049 AA02 AA16 AA18 BB05 BB10 BB17 BB19 BB23 CC04 CC11 EE01 EE02 FF01 FF02 FF11 FF12 FF15 FF32 FF33 FF36 FF41 GG05 GG07 GG11 GG12 HH01 KK02 KK12 9A001 BB06 CC02 DD02

Claims (5)

[Claims] An information processing terminal connected to the main device via a data communication path, the information processing terminal having a storage unit for storing various information, and the main device via an extension transmission line. And one or more key telephones having a screen display unit for displaying various types of information. The key telephones operate by displaying information generated and transmitted by the main device on the screen display unit. A button having a slave unit control unit that operates in one of a TEL mode and a CTI mode that operates by displaying information transmitted from the information processing terminal via the main device on the screen display unit. Phone system. 2. The key telephone system according to claim 1, wherein the key telephone receives a TEL screen memory for receiving and storing information from the main device, and receives and stores information from the information processing terminal. A display for reading and displaying information from the CTI screen memory and the TEL screen memory when the own operation mode is the TEL mode, and a display for reading and displaying information from the CTI screen memory when the own operation mode is the CTI mode A key telephone system comprising a management unit. 3. The key telephone system according to claim 2, wherein the display management unit reads information composed of 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 key telephone system characterized by: 4. The key telephone system according to claim 1, wherein the main unit transmits the operation mode to the key telephone based on operation information transmitted from the key telephone in response to the operation or a state of the telephone line. And a mode management unit that stores and manages the operation mode of the key telephone, wherein the slave unit control unit changes its own operation mode based on an instruction from the main device. Button phone system. 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 needed, and responds to information from the information processing terminal. A key telephone system comprising data transfer means for transferring data to a key telephone.