JPH01284063A - Communication equipment - Google Patents

Abstract

PURPOSE:To attain the reception of an incoming call at a proper terminal equipment surely without a troublesome switching changeover by giving an incoming call right to a telephone set for a prescribed time at an incoming call and starting data communication only when the telephone set does not reply. CONSTITUTION:In the presence of an incoming call, a master set sends an incoming command to an exclusive telephone set 5 and a ring tone is sent through a speech line 3. A control circuit 21 sets a timer and when a handset hooks off or a speaker key depressed as hook-off operation, the talking state or speaker reception state is attained by the execution of telephone function. When timeout takes place and other telephone set or an exclusive telephone set 5 does not reply, an IR transmission circuit 19 starts the transmission of a call signal to a speech line 6 to a facsimile equipment. As above, the facsimile equipment is set to the automatic reception mode and the automatic reception mode changeover key of the exclusive telephone set 5 is turned on, then automatic reception is applied only for the absence of the reply of talking purpose.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a communication device, particularly a main device of a key telephone system, a data communication device of a predetermined method, and a communication device connected between the main device and the data communication device. The present invention relates to a communication device composed of a telephone.

[Prior Art] A key telephone system (hereinafter abbreviated as KTS) has been known as a small-scale private branch exchange system. In this KTS, in most cases, the main device is connected to the line network via multiple lines, and the dedicated telephone (button button) has multiple connection control keys, hold keys, etc. telephone). KTS can connect a line to a desired telephone by pressing a connection control key provided on the telephone.

[Problems to be Solved by the Invention] On the other hand, in addition to voice terminals such as telephones, devices that perform data communication via analog modulation and demodulation, such as facsimile devices, have recently become known as devices that utilize telephone lines.

When such a data communication device is connected to the KTS as described above, a structure in which the data communication device is connected to the data communication device as one of the dedicated telephones can be considered.

With such a structure, if the data communication device is set to the automatic call reception mode, the data communication device will automatically start data communication based on detection of a paging signal. For this reason,
A possible method is to provide an operating means on the main device or a dedicated telephone, and to switch between giving the facsimile machine the incoming call queue and automatically receiving the call, or giving priority to the telephone as the incoming call queue, depending on the operation of this operating means. It is being

However, with such manual control of the call queue, there is a problem in that due to an operational error, a call from a telephone may be received by the data communication device.

The object of the present invention is to solve the above problems.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a main device of a key telephone system, a data communication device of a predetermined method, and a connection between the main device and the data communication device. In a device comprising a telephone, the telephone has means for detecting an incoming call command output from the main device, a calling signal generating means for calling an operator, and a calling signal for sending a calling signal to the data communication device. transmitting means; and when the incoming command detecting means detects an incoming call command output from the main device, the ringing tone generating means generates a ringing tone for a certain period of time including zero time, and the telephone is connected to the telephone or the main device. The telephone waits for a response from another telephone, and when this predetermined period of time has elapsed, the calling signal transmitting means transmits a calling signal to the data communication device to start the automatic communication operation of the data communication device.

[Function] According to the above configuration, when a call is received, the telephone is given a call queue for a certain period of time, and data communication can be started only when the telephone does not respond.

[Embodiments] The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 shows the configuration of a key telephone system employing the present invention. In FIG. 1, reference numeral 1 indicates a telephone line, which is connected to the KTS main unit, reference numeral 2. The KTS main device 2 is connected to a dedicated telephone with a facsimile adapter function indicated by reference numeral 5 through four wires, two of which are used as a telephone line 3 for making calls, and the other two wires are connected to the dedicated telephone. It is used as a control line 4 used for controlling 5. The dedicated telephone 5 is connected to the line terminal 8 of the facsimile machine 7 through a two-wire telephone line 6. The telephone terminal 9 of the facsimile machine 7 is a two-wire attached telephone connection line 1.
0, it is connected to the facsimile attached telephone 11.

FIG. 2 is a block diagram of a dedicated telephone according to the present invention. The communication line 3 connected to the main device is connected to the control circuit 2
Two relays 178, 17 controlled synchronously by
b, hook switch 12 and DC loop detection circuit 2
The connection can be switched between 0 and 0.

When used as a normal telephone, the relay 17a connects the telephone line 3 connected as the main device to the hook switch 12, and when the hook switch 12 is open, the relay 17a connects the telephone line 3 connected as the main device to the hook switch 12. 13
A speaker 14 is connected via the hook switch 12.
When the phone is closed, the handset 16 is connected via the communication circuit 15.
is connected and you can make calls. Information regarding the opening and closing of this hook switch is transmitted to the control circuit 21. At this time, the relay 17b connects the DC power supply circuit 18 to the facsimile communication line 6 and supplies power to the facsimile machine 7.

Further, the control line 4 from the main device is connected to the main device interface 22, and the information is transmitted to the control circuit 21. When receiving an incoming call command from the main device, the dedicated telephone 5 sends a ringing signal to the telephone line 6 to the facsimile machine 7 through the ■R (ringing signal) sending circuit 19, and the facsimile machine connects to the DC loop. Wait for it to form. The DC loop detection circuit 20 is a circuit that detects whether or not a DC loop is formed on the telephone line 6 to the facsimile, and the control circuit 21 simultaneously activates the two relays 17a and 17b when the facsimile forms a DC loop. Then, the telephone line 3 from the main device and the telephone line 6 to the facsimile machine 7 are connected to perform facsimile communication.

Reference numeral 23 indicates keys such as dial keys, one-touch dial keys, function keys, etc., and information on their presses is sent to the main device via the control port path 21 and the main device interface 22. .

In addition, a key for starting or canceling speaker reception (hereinafter referred to as a speaker key), and
The key for setting the dedicated telephone to automatic facsimile reception mode or canceling automatic facsimile reception mode (hereinafter referred to as the automatic reception mode switch key) is also key 2.
Included in 3.

Note that the automatic reception mode switching key described above is not used to remotely control the reception mode of the facsimile machine 7. In this embodiment, it is possible to select whether the facsimile machine 7 receives the call preferentially or the dedicated telephone 5 receives the call for the purpose of talking, and the above automatic reception mode switching key is used for this purpose. This is to control mode switching on the dedicated telephone side. If the above mode switching key is turned on, the dedicated telephone 5 will switch to
It generates an R signal and calls the facsimile machine 7.

FIG. 3 shows a block diagram of the circuit configuration of the facsimile machine 7. As shown in the figure, the facsimile machine 7 has a very general configuration. The line terminal 8 to which the telephone line 6 is connected has two relays 27a controlled by the control circuit 30.
, 27b to the telephone terminal 9.

Since a facsimile attached telephone 11 is connected to the telephone terminal 9, by taking the facsimile attached telephone 11 off-hook, a DC loop is formed in the attached telephone connecting line 10, and a call can be made through the telephone line 6.

The DC loop detection circuit 34 is a circuit that detects that a DC loop is formed in the attached telephone connection line 10, and the information is transmitted to the control circuit 30. IR detection circuit 24
is a circuit for detecting a calling signal on the telephone line 6; if the facsimile machine 7 is in the automatic reception mode, when the control circuit 30 detects the calling signal, the DC loop forming circuit 25 forms a DC loop; Connect relay 27a to modem 28
switch to the other side and perform facsimile communication.

Further, the keys 29 connected to the control circuit 30 include a start key, a stop key, a numeric keypad, a one-touch dial key, a function key, and the like. DC power supply circuit 3
1 is a circuit that supplies a DC current for detecting a DC loop on the attached telephone connection line 10 when the relay 27a is switched to the modem 28 side; , are used to read and output graphics, and the sound source 35 and speaker 36 are used to emit warning sounds and the like. The dialing circuit 26 is a circuit that sends a dial tone or dial pulse to the telephone line 6 under the control of the control circuit 3o.

Next, the operation in the above configuration will be explained.

FIG. 4 shows a control procedure for the dedicated telephone 5. The procedure shown in FIG.
It is stored in a. It is assumed that flows with the same number are connected at that part. Furthermore, in the following procedure, the facsimile machine 7 is set to automatic reception mode using the key 29.

Step S1 in FIG. 4 is executed by resetting the control circuit 21, but here, as shown in FIG.
a and 17b are set to the initial state. That is, relay 1
Switch 7a to hook switch 12 side, relay 17b
is switched to the DC power supply circuit 18 side.

Next, a loop of steps S2 and S3 is entered, but here, normal dedicated telephone processing is executed until the automatic reception mode switching key is pressed.

That is, if the handset goes off-hook, the process of transmitting an off-hook code to the main device to put it in a talking state, and if the speaker key is pressed, transmitting that code to the main device and putting it into speaker listening mode is also performed in step S2.
is executed.

When the automatic reception mode switching key included in the key 23 of the dedicated telephone 5 is pressed, the dedicated telephone enters the automatic reception mode and enters a loop of steps S4, S5, and S6. In this loop, in step S4, similar to step S2, normal dedicated telephone processing is performed, and in step S5 it is determined whether or not an incoming call command has been received from the main device, and if the incoming command has not been received, step In S6, it is determined whether the automatic reception switching key has been pressed, and when the automatic reception mode switching key is pressed, the automatic reception mode is canceled and the process returns to the loop of steps S2 and S3.

Now, when an incoming call is received, the main device sends an incoming call command to the dedicated telephone 5 and sends a ringing sound through the telephone line 3. When the control circuit 21 receives an incoming command from the main device in the loop of steps S4, S5, and S6, the control circuit 21 enters the process from step 37 based on the judgment in step S5.
In step S7, a timer is set, and step S
8, turn on the amplifier 13 and step S9.5
Enter the IO1Sit loop. This loop is repeated until the timer times out in step Sll, but during that time, the ringing sound coming from the main device through the telephone line 3 is heard from the speaker. In this loop, if an off-hook operation such as off-hooking the handset or pressing the speaker key is performed, the process returns to the loop of steps S4, S5, and S6 based on the judgment in step S9, and a call is made by executing the telephone function in step S4. or the speaker is listening. Furthermore, when the incoming call stops or when another dedicated telephone answers, the main device sends a call stop command to the unanswered dedicated telephone and stops sending the ringing sound, but the control circuit 21 ,
If a call termination command is received from the main device before the off-footer operation is performed, the amplifier 13 is turned off in step S22, and the process returns to the loop of steps S4, S5, and S6.

In step S11, if the timeout occurs, that is, the fixed-time telephone or the dedicated telephone 5 does not respond by off-hook, step S11 is determined.
In step S9.5, the IR sending circuit 19 starts sending out a calling signal to the telephone line 6 to the facsimile.
Enters a loop of IO1Sll, S12, and S13. In this loop, when the off-footer operation of the dedicated telephone 5 is determined, the sending of the ringing signal is stopped in step S20, and the process returns to the loop of steps S4, S5, and S6, and the reception of the stop incoming command from the main device is determined. When this is done, the sending of the calling signal is stopped in step S21, the amplifier is turned off in step S22, and the process returns to the loop of steps S4, S5, and S6. Further, in step S13, it is detected whether a DC loop has been formed in the facsimile device 7 or the telephone line 6.

If the facsimile device 7 is set to the automatic reception mode, a known automatic facsimile reception operation is started in response to a ringing signal (IR signal) sent from the dedicated telephone 5 in step S12. That is, when the control circuit 30 of the facsimile machine 7 detects that a calling signal is sent on the telephone line 6 using the IR detection circuit 24, it forms a DC loop using the DC loop forming circuit 25, and connects the relay 27a to the modem 28.
side and start facsimile communication.

In the dedicated telephone set 5, the formation of this DC loop can be detected by the DC loop detection circuit 20, so the process proceeds to step S14 and subsequent steps based on the determination in step S13.

In step S14, the transmission of the calling signal is stopped, in step S15 the off-hook code is sent to the main device, and in step S16 the two relays (17a, 17b) are switched, and the telephone line 3 from the main device is connected to the facsimile. , and enters the loop of step S17. This loop of step S17 ends the facsimile communication (
That is, the facsimile 7 disconnects the DC loop of the DC loop forming circuit 25, and the DC loop detection circuit 20 of the dedicated telephone 5 can no longer detect the DC loop.When the facsimile communication ends, the two relays ( 17a.

17b) to the initial state, transmits the on-hook code to the main device in step S19, and performs steps S4, S5, S
Return to loop 6.

As described above, according to this embodiment, if the facsimile device is set to the automatic reception mode and the automatic reception mode switch key of the dedicated telephone 5 is turned on, the It is possible to wait for a response from another connected telephone, and send a ringing signal to the facsimile machine only when there is no response to the call, causing it to perform an automatic reception operation.

Therefore, there is no problem that the facsimile responds unconditionally as in the past. Further, since any facsimile device can be used as long as it can set an automatic call receiving mode based on a paging signal, there is an advantage that the facsimile device is not subject to system configuration restrictions.

In the above description, even after detecting a telephone response for a certain period of time and proceeding to call the facsimile device 7, the process returns from step 513 in FIG. 4 to step S9, allowing the telephone to respond. Therefore, it is possible to answer a telephone call for a period of time that is the above-mentioned predetermined time plus 5 to 6 seconds until the facsimile machine responds and forms a DC loop.

However, if no telephone response is detected for a certain period of time, the system may immediately switch to facsimile communication and prohibit telephone response. Such a control procedure is shown in FIG. Fifth
The figure shows the control procedure for the dedicated telephone 5, similar to FIG.

In Figure 5, the difference from Figure 4 is step 8.
The control in the steps from 9 to 310 is otherwise the same as in FIG. Here, only the parts that are different from FIG. 4 will be explained.

An incoming command is received from the main device, and steps S7 and S8
After executing in the same manner as shown in FIG. 4, an off-footer, an incoming call stop command, or a timeout of a predetermined time is detected in steps S9 to Sit.

If the incoming call is stopped, the amplifier 13 is immediately turned off in step 520' to stop generating the ringing tone.

In addition, in the case of timeout for a predetermined time, step 32
Similarly, in step S2', the ringing tone is stopped by turning off the amplifier 13, and the process proceeds to step S12, where a ringing signal is sent to the facsimile machine 7. That is, the phone stops detecting calls and answers.

Next, in step 310', a command to stop incoming calls from the main device is detected. If the same command is detected, step S21
When the output of the calling signal is stopped at step S13 and a DC loop in the telephone line 6 due to a response from the facsimile machine is detected, the same facsimile communication as shown in FIG. 4 is performed from step S14 onward.

By following the above procedure, it is possible to first give the telephone an incoming call queue for a fixed period of time, and then to give the facsimile call queue, but in this case, if there is no response from the telephone for a certain period of time, facsimile calls are immediately sent. This has excellent effects such as being able to obtain received manuscripts and quickly transmit manuscripts (such as in the case of polling).

Furthermore, if the automatic reception selector switch of the dedicated telephone is turned off, calls will always be received only by the telephone. In this case, incoming calls to the facsimile device are controlled by the dedicated telephone 5.
prohibited by

In the embodiments described above, a configuration may be considered in which the fixed time period for giving a call queue to the telephone is not set to a fixed value, but is variably controlled. In that case, the dedicated telephone is provided with operating means such as a slide volume, and the predetermined time is controlled to a desired time value including 0 hour by operating this means.

Note that although a facsimile device has been exemplified above, it goes without saying that the above configuration can be implemented even when using other data communication devices.

[Effects of the Invention] As is clear from the above, according to the present invention, a main device of a key telephone system, a data communication device of a predetermined method,
In a device comprising a telephone connected between the main device and a data communication device, the telephone includes means for detecting an incoming call command output from the main device, and means for generating a calling signal for calling an operator. means for transmitting a ringing signal to the data communication device; and when the incoming command detecting means detects an incoming call command output from the main device, the ringing tone generating means generates a ringing tone for a certain period of time including zero time. Waits for a response from the telephone set or another telephone connected to the main device, and when this predetermined period of time has elapsed, the call signal transmitting means transmits a call signal to the data communication device to automatically control the data communication device. Since we have adopted a configuration that starts communication operation, when a call arrives,
It is possible to give the phone a call queue for a certain period of time and start data communication only when the phone does not respond, making it possible to ensure that calls are received on the appropriate terminal without the need for troublesome switch changes. It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the structure of a communication device adopting the present invention, FIG. 2 is a block diagram showing the structure of the dedicated telephone shown in FIG. 1, and FIG. 3 is a block diagram showing the structure of the facsimile machine shown in FIG. 1. The block diagrams shown in FIGS. 4 and 5 are flowcharts showing control procedures for different dedicated telephones, respectively. 3, 6...Telephone line 4...Control line 5...Dedicated telephone 7...Facsimile 8...Line terminal
9...Telephone terminal 11...Telephone with facsimile 12...Hook switch 13...Amplifier 14...Speaker 15...
・Telephone circuit 16...Handset 17, 27...
Relays 18, 31...DC power supply circuit 19...IR outlet paths 20, 34...DC loop detection circuits 21, 30...Control circuit 24...IR detection circuit 25...DC loop formation Circuit 28...modem 0 permission■-A-''cp,t'-,iaa*jk,
,j−,7,,.

Claims (1)

[Scope of Claims] 1) A communication device comprising a main device of a key telephone system, a data communication device of a predetermined method, and a telephone connected between the main device and the data communication device, the telephone comprising: means for detecting an incoming command output from the main device; means for generating a calling signal for calling an operator; means for transmitting a calling signal to the data communication device; and means for detecting an incoming call command output from the main device. When the incoming command detecting means detects the incoming command, the ringing tone generating means generates a ringing tone for a certain period of time including 0 hours and waits for a response from the telephone or another telephone connected to the main device, and the certain period of time elapses. In this case, the communication device is characterized in that the call signal transmitting means transmits a call signal to the data communication device to start an automatic communication operation of the data communication device. 2) The device according to claim 1, wherein the data communication device is called by the call signal, and the ring tone is generated during a period until the data communication device responds, and a response from the telephone is accepted. Communication device. 3) The communication device according to claim 1 or 2, further comprising means for variably controlling the certain period of time.