JP3902166B2 - Button telephone equipment - Google Patents

Description

  The present invention relates to a button telephone apparatus having a preset dial function.

  The preset dial function refers to a function for capturing an outside line and dialing after dialing in an on-hook state. Some conventional telephones having a preset dial function pursue convenience for a method of making a call by detecting the end of dial input (see, for example, Patent Document 1). In addition, there is one that can select whether to start a preset dial or a phone book search (see, for example, Patent Document 2).

FIG. 6 shows an example of a transmission sequence using such a conventional preset dial function. With the conventional preset dial function, after the user completes the dialing operation of the other party number, the key telephone main unit shifts to the external line capturing process when the external line key is pressed down or off-hook, and the dial tone is heard from the external line when it is connected to the external line. To do. Next, the key telephone main unit sends the other party number, and the outside line stops the dial tone and sends a ringing tone.
Japanese Patent No. 3162269 JP 2002-33818 A

  However, in any case, the following problems remain when the preset dial function is implemented by a conventional telephone system such as a button telephone device. In other words, in a local telephone system such as a conventional button telephone device, when an outside line is transmitted, a specific number for outside line transmission (generally, “0” dial) is pushed down after the off-hook to capture the outside line, and a dial tone of the outside line is obtained. A dialing method for dialing a destination number after listening is common. For users familiar with this operation procedure, when using the preset dial function to capture and send an outside line after dialing in an on-hook state, is there a dial tone for the outside line, so is it really connected to the other party's number? I feel anxious. Such users do not use the preset dial function and follow the conventional operation procedure, so the time for capturing the outside line becomes longer, and other users can use the outside line during that time. There is a problem of disappearing.

  The present invention has been invented to solve such a problem, and uses a preset dial function as a dialing method, although the operation procedure is similar to the dialing method in a conventional telephone system such as a key telephone. It is intended to provide a key telephone main device that can be used.

The present invention comprises a key telephone system which accommodates one or more external line and a plurality of extensions, the key telephone system comprising a plurality of key telephone sets connected to the extension, the key telephone system, from the key telephone A function for determining that the data is a specific number dial for outside line transmission; a function for setting the state of the key telephone to a preset dial input enabled state when it is determined that the data is a specific number dial for outside line transmission ; A function for generating a pseudo dial tone when it is determined that the dial is a specific number dial for outside line transmission and sending the pseudo dial tone to the key telephone, and a function for stopping the transmission of the pseudo dial tone when a preset dial is inputted from the key telephone. And the button telephone receives and outputs the pseudo dial tone, and the pre-set. A key telephone system which is characterized in that a function of visually displayed by the character that has become Ttodaiyaru input enabled state.

Further, the present invention is the button telephone apparatus characterized in that the key telephone main apparatus has an outside line capturing function for capturing an outside line when the preset dial input is not performed for a predetermined time .

  According to the present invention, when a user presses an outside line transmission special number (for example, “0” dial) that starts transmission to an outside line when the key telephone is in a standby state, the pseudo dial generated by the key telephone main unit is generated. A tone (for example, 400 Hz continuous sound) is sent to the user, and after listening to the pseudo-dial tone, the other party's number can be dialed, so that the external dial tone familiar with the conventional private telephone system can be heard. The preset dial function can be used with peace of mind in the same operating procedure as the dialing method. As a result, the time during which the outside line is captured is shortened, the opportunity for other users to use the outside line is increased, and the use efficiency of the outside line can be improved. Further, unlike a normal preset dial, since it is configured to automatically capture an outside line if no dial operation is performed for a certain period of time, the operation is simplified because it is not necessary to off-hook the telephone handset.

  Also, when the dial tone volume is turned down or when it is difficult to hear the dial tone due to ambient noise, etc., the fact that the preset dial input status has been entered is displayed visually on the LCD display, etc. It is characterized by being able to be operated.

  Embodiments of the present invention will be described below. In the following embodiments, a button telephone main apparatus and a wired button telephone connected to the button telephone main apparatus will be described as examples of the button telephone apparatus. However, the present invention is not limited to this. For example, a wireless button telephone may be used instead of the wired button telephone, or the private branch exchange apparatus may be used instead of the key telephone main apparatus. That is, the key telephone main device in the present invention includes a private branch exchange. Further, the outside line transmission special number for starting the transmission to the outside line will be described as “0” dial. Furthermore, although the description will be made taking an example in which visual display is performed on an LCD display, a dedicated LED display or the like may be used.

  The outline of the configuration of the key telephone main device 10 and the key telephone (extension telephone) 20 constituting the key telephone device according to the present invention will be described with reference to FIG. The key telephone apparatus includes a key telephone main apparatus 10 connected to a plurality of external lines (which may be one), and a plurality of button telephones 20-1 to 20-n connected to the key telephone main apparatus 10. Composed.

  The key telephone main device 10 includes a central control unit 11, a speech path switch 12, a plurality of external line circuits 13-1 to 13-n, a pseudo tone transmission unit 14, and a plurality of data transmission / reception circuits 15-1 to 15-. n and a storage unit 16.

  The central control unit 11 analyzes and determines input information (including information from the key telephone) from each circuit of the key telephone main device 10, inputs / outputs information to / from the storage unit 16, and controls each circuit.

  The communication path switch 12 performs exchange processing (connection between an external line and an internal line, connection of each sound source to an internal line and an external line) in the key telephone main device 10.

  The external line circuits 13-1 to 13-n are interface circuits connected to the external line.

  The pseudo tone sending unit 14 is connected to the extension via the communication path switch 12 when sending a pseudo dial tone to the extension.

  The data transmission / reception circuits 15-1 to 15-n are interface circuits for communicating voice data and control data with the key telephones 20-1 to 20-n via extensions.

  In addition to the function as a normal storage unit, the storage unit 16 stores a preset dial by a dial operation from a key telephone.

  The key telephone 20 also includes a control unit 21, a data transmission / reception circuit 22, a voice processing unit 23, a handset 24, a speaker 25, a dial key 26, an outside line key 27, a function key 28, and an LCD display. The device 29 is configured.

  The control unit 21 analyzes and determines input information from each circuit in the key telephone and controls each circuit.

  The data transmission / reception circuit 22 is an interface circuit for communicating voice data and control data with the key telephone main device 10 via an extension.

  The voice processing unit 23 controls voice digital / analog conversion, analog / digital conversion, call path switching and volume of the handset 24, the speaker 25, etc. in the key telephone.

  The handset 24 is a handset for performing transmission and reception during a general call.

  The speaker 25 is normally used for sending a ringtone or receiving a loud voice by the speaker, and outputs a pseudo dial tone when the preset dial state is entered.

  The dial key 26 is a means for dialing a telephone number, and is also used as a button for inputting an outside line special number for starting a call to an outside line.

  The outside line key 27 is a button for selecting an outside line to be used from a plurality of outside lines.

  The function key 28 is a function button such as a hold or a speaker generally used in a button telephone apparatus.

  The LCD display 29 displays a telephone number, preset dial input information, and the like. In addition, a display indicating that the preset dial can be input is displayed.

  FIG. 2 is an external view of an example of the key telephone 20 constituting the key telephone device according to the present invention. The appearance of the button telephone (extension telephone) 20 is as follows: a handset 24, a speaker 25 that does not usually appear on the surface, twelve dial keys 26, an outside line key 27, a function key 28, and an LCD display 29. And various setting switches (such as an incoming volume control switch and an incoming volume switch) not shown.

  In the present embodiment, four external line keys 27 are provided. However, the number of external line keys 27 is not limited to this, and can be changed according to the number of external lines that the key telephone device has. It is. Similarly, the number of function keys 28 is not limited to four, but can be changed according to the number of functions of the key telephone device.

  The functional configuration of the key telephone main device constituting the key telephone device according to the present invention will be described with reference to FIG. The key telephone main device 10 includes at least a call function F10, a key data detection function F11, a specific number determination function F12, an external line capture function F13, a pseudo dial tone generation / transmission function F14, a data transmission / reception function F15, It has a data storage function F16 and a key telephone state setting function F17.

  The calling function F10 is a function for calling a dial number received from the key telephone 20, and at the time of preset dialing, the dial preset when a predetermined time elapses after the external line key is pressed or the dial number is entered. It has a function to call a number.

  The key data detection function F11 is a function for detecting contents such as dial keys, function keys, and outside line keys from data received from a key telephone. The key data detection function F11 sends the dial data received from the key telephone to the data storage function F16.

  When the specific number determination function F12 determines that the dial data input from the key telephone is a specific number for outgoing line transmission (for example, “0”), the key telephone state setting function F17 sets the key telephone 20 to the preset dial state. And a function for sending to the data storage function F16 that the key telephone 20 is set to the preset dial state.

  The outside line capturing function F13 is a function for capturing a predetermined outside line when detecting the depression of the outside line key from the received data or when there is no input of the dial number for a predetermined time.

  The pseudo-dial tone generation / transmission function F14 is a pseudo-dial tone that is an audible sound similar to the dial tone received from the outside line when the outside telephone line is captured when the key telephone 20 is set to the preset dial state. Is generated and sent to the key telephone 20, and when a dial number is received, the pseudo dial tone is stopped.

  The data transmission / reception function F15 is a function for transmitting / receiving data to / from the key telephone 20.

  The data storage function F16 is a function for storing data such as dial numbers, preset dial numbers, and key telephone states received from the key telephone 20.

  The key telephone state setting function F17 is a function for setting the key telephone to a preset dial state when a specific number is input.

  The sequence of the transmission method according to the present invention will be described with reference to FIG. When the key telephone 20 is in a standby state, when the user presses an outside line transmission special number (for example, “0” dial) that starts transmission to the outside line, the key telephone main device 10 that has received the key data of the outside line transmission special number Sets the key telephone 20 to a preset dial state, generates a pseudo dial tone, and sends it to the key telephone 20. After listening to the pseudo dial tone, the user performs a dialing operation of the other party number. When the other party dial of the first digit is input, the key telephone main device 10 stops sending the pseudo dial tone. When the user presses down the outside line key after entering all the other party numbers or when a predetermined time elapses without any key input, the key telephone main unit 10 moves to a calling operation and captures the outside line. When the outside line returns a dial tone to the key telephone main unit 10, the key telephone main unit 10 transmits the preset other party number toward the external line. The outside line that receives the other party number stops sending the dial tone, calls the other party, and sends a ringing tone to the calling side main unit. The user listens to the ring tone.

  In this manner, the user can preset the dial after listening to the dial tone in the same way as during normal dialing even during preset dialing.

  Next, an example in which a preset dial operation is performed from one button telephone (extension telephone) 20-1 connected to the key telephone main apparatus 10 will be described with reference to FIG. FIG. 5 shows the processing of the central control unit 11 of the key telephone main device 10.

  The key telephone main unit sequentially performs processing for a plurality of key telephones at a constant cycle (for example, 60 mSec), and when reception data processing from one telephone is completed as shown in FIG. 5, the processing proceeds to reception data processing from the next telephone. However, in the following description, the description of the transition to “reception data processing from the next telephone” is omitted, and the processing is limited to one button telephone.

  The central control unit 11 of the key telephone main device communicates control data with the control unit 21 via the data transmission / reception circuit 15-1 and the control unit 21 via the data transmission / reception circuit 22 of the key telephone 20-1.

  The key telephone main apparatus and the key telephone communicate control data, and the central control unit 11 of the key telephone main apparatus determines whether there is data received from the key telephone 20-1 (S1).

  When there is received data, the key telephone main device refers to the telephone state stored in the storage unit 16 to determine whether it is in a standby state (S2). If it is a dial key input, it is determined whether the dial is “0” dial (specific number for outside line transmission) (S4). If it is “0” dial, it is in a standby state. It is determined that the first dial operation is specific dial input (external line specific number: preset dial), the standby state of the telephone is released, and the telephone state of the storage unit 16 is set to the preset dial state (S5). The tone transmitter 14 is designated as a 400 Hz sound, and is connected to the data transmission / reception circuit 15-1 by controlling the communication path switch 12, and the speaker of the key telephone 20-1. 5 outputs 400Hz continuous sound than doing (pseudo dial tone sending) control (S6).

  Further, when visual display is performed, control is performed to display “During preset dial” on the LCD display 29 of the key telephone 20-1. This process can be performed in parallel with the pseudo dial tone transmission process of S6 or before or after the process of S6.

  If the telephone set is not in the standby state (S2), the key telephone main unit determines whether the key telephone is in the preset dial state (S8). For example, in the off-hook state, dial reception processing is performed when a dial key is received, and in the case of an outside line call state, hold processing is performed when a hold key is received (S7).

  If the key telephone is in the preset dial state, the key telephone main unit determines whether the received data is a dial key input (S9). If the key telephone is a dial key input, the dial input stored in the storage unit 16 is determined. With reference to the number of digits, it is determined whether or not the first digit is input (S10). If the input is the first digit, the communication path switch 12 is controlled, and the pseudo tone transmitter 14 and the data transmission / reception circuit 15 are controlled. -1 is released, the 400 Hz sound is stopped, and the received dial input is stored in the preset dial memory of the storage unit 16 (S12). Since it is obvious that the number of dial input digits is incremented by 1, it is not shown.

  If it is determined that the input is the first digit (S10), the key telephone main device stores the received dial input in the preset dial memory of the storage unit 16 (S12).

  If it is not dial key input in the determination of whether or not the dial key is input (S3 and S9), other processing, for example, when an external line key is input, is connected to the designated external line and dialed using the dial received so far (S7) .

  If it is determined that the dial is “0” (S4) and the dial is not “0”, the key telephone main device ignores the key input.

  The key telephone main unit sequentially stores the dials received from the key telephone 20-1 in the storage unit 16, and when there is no dial key input for a certain period of time, it automatically captures an outside line that can be sent and has received it so far. Make a call by dialing.

Schematic block diagram for explaining the configuration of a button telephone device according to the present invention. External view for explaining a schematic configuration of a key telephone used in the present invention Functional block diagram explaining the outline of the functional configuration of the key telephone main device according to the present invention Schematic sequence diagram at the time of preset transmission in the key telephone device according to the present invention Schematic flowchart of the key telephone main device in the present invention Schematic sequence diagram at the time of preset transmission in a conventional key telephone device

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Button telephone main unit 11 Central control part 12 Communication path switch 13 External line circuit 14 Pseudo tone transmission part 15 Data transmission / reception circuit 16 Memory | storage part 20 Button telephone 21 Control part 22 Data transmission / reception circuit 23 Voice processing part 24 Handset 25 Speaker 26 Dial key 27 External Line Key 28 Function Key 29 LCD Display F10 Calling Function F11 Key Data Detection Function F13 External Line Capture Function F14 Pseudo Dial Tone Generation Transmission Function F15 Data Transmission / Reception Function F16 Data Storage Function F17 Button Telephone State Setting Function

Claims (2)

In a key telephone apparatus comprising a key telephone main apparatus that accommodates one or more external lines and a plurality of extensions, and a plurality of button telephones connected to the extensions,
The key telephone main unit presets the state of the key telephone when it determines that the data from the key telephone is a specific number dial for outside line transmission and the specific number dial for outside line transmission. A function for setting the dial input enabled state, a function for generating a pseudo dial tone when it is determined that the dial is a specific number dial for outgoing line transmission, and sending it to the key telephone, and a preset dial input from the key telephone. And a function of stopping the transmission of the pseudo-dial tone, the key telephone receiving and outputting the pseudo-dial tone, and a function of visually displaying that the preset dial input enabled state is displayed. key telephone apparatus characterized by comprising a. The button telephone apparatus according to claim 1, wherein
The button telephone main device has an outside line capturing function for capturing an outside line when the preset dial input has not been received for a predetermined time .

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