JPH03220955A - Telephone system - Google Patents

Abstract

PURPOSE:To simply attain talking processing operation by providing a local operation unit connecting in parallel with a telephone set to an extension to which telephone sets are connected. CONSTITUTION:A local operation unit F able to implement the talking processing operated normally by a telephone set C in place of the telephone set C is provided to allow the user to simply implement the talking processing. Thus, a talking processing signal is sent to a telephone exchange A by having only to depress the local operation unit F corresponding to the desired talking processing and when it is made clear to which of talking processing items a switch corresponds, the storage of the correspondence between the operation and the talking processing content different from the case of entering the talking processing signal by the telephone set C is not required.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application J] The present invention relates to a telephone system that allows outside calls and internal calls to be made using a commercially available telephone.

[Prior Art J] This type of telephone system includes a telephone exchange connected to an outside line, which is a public telephone line, and an extension line, which is a voice line, and a control line, which is a control signal transmission line, to the telephone exchange. It consists of a plurality of notification units to which commercially available telephones are detachably connected, and the above-mentioned telephone exchange switches and forms communication paths between outside lines and extensions, or between extensions, and the telephone connected to the notification unit allows outside calls and extensions to be made. There is a feature that allows you to make calls.

[Problem to be Solved by the Invention 1] By the way, this type of telephone system does not allow extension calls, hold calls,
- It is now possible to perform various call processing such as simultaneous ringing and doorbell call answering, and since a general commercially available telephone is used as an extension telephone, call processing can be performed by dialing or 7-touching operations on the telephone. It is. However, when calls are processed by dialing or dialing the phone in this way, the user has to memorize the operations that correspond to call processing, and it is not possible for anyone to easily perform call processing operations. There is no.

The present invention has been made in view of the above points, and its purpose is to provide a telephone system that can easily perform call processing operations. In order to achieve the above object, the present invention includes a plurality of switches provided corresponding to call processing performed in a telephone exchange;
and signal sending means for sending a pseudo call processing signal, which is the same as the call processing signal sent from the telephone to the telephone exchange, to the telephone exchange in the form of a dial pulse signal in response to the switch operation,
A hand-held operation unit is provided which is connected in parallel with the telephone to each extension line to which the telephone is connected.

[Function 1] By having the above-mentioned configuration, the present invention allows IE conversation W! If you make it possible to send a call processing signal to the telephone and make it clear which type of call processing the above switch corresponds to, the operation and call processing will be the same as when inputting the call processing signal on the telephone. This eliminates the need to memorize correspondence with processing contents.

[Example 1 An embodiment of the present invention is shown in FIGS. 1 to 8.

As shown in FIG. 8, the system configuration of the telephone system of this embodiment is basically the same as that of the conventional system.
A, and a plurality of notification units (B) each connected to the telephone exchange fiA through a communication line (e2) and a control signal transmission line (control 11ib), and to which commercially available telephones (fiC) are detachably connected. , outside # at the above telephone exchange 11A! l
, and one extension or within #! By switching and forming communication paths between 12 and 12, it is possible to make external calls and internal calls using the telephone WIC connected to the notification 22)B. In addition, in this telephone system, door intercom D can be connected to telephone exchange fiA through call 1114, and telephone C can be used to make door intercom calls.

It should be noted that each notification unit B is provided with a mono-F jack, through which a general commercially available telephone IIC can be detachably connected. Also,
This notification (22)B is sent via a speaker for reproducing notification signals such as extension ringing or doorphone ringing sent via control line e, and control line l. It is equipped with a light-emitting display section that discriminates a display signal, which is a voltage signal, to indicate whether an internal call is in progress or an outside call, and these speakers and light-emitting indicators perform notification and display operations.

However, with this configuration alone, if calls are processed by dialing or 7-key operations on the telephone IaC, the user needs to memorize the operations corresponding to call processing, and anyone can easily perform call processing operations. It doesn't make any sense. Therefore, in this embodiment, in order to make it easier for the user to process calls, the phone
Hand operated unit that can be used in place of IiC)F
The specific MRr& of this embodiment will be explained below, but first, the configuration and basic operation of the telephone exchange $1A will be explained. As shown in FIG. 4, the telephone exchange A has a relay contact ",~r1.7tsuk dial pulse<DP) detection circuits 21 to 2 and a call current supply circuit for each #112 of telephone WICs connected to the telephone exchange A. 4. to 4., and further includes an incoming call detection circuit 5, a DC closing circuit 3, a DP generation circuit 6 that makes an outside line call with a dial pulse, a button button (PB) dialer 7 that makes an outside call call with a button tone, An outside line dial tone detection circuit 8 that detects an outside line dial tone, a hold tone sending circuit 9 that sends out a hold tone, a cross point switch 10 that sets a call route, a PB receiver 12 and 13 that receives a button signal, and various notifications. A sound generation circuit 17 that generates sound, a display control circuit 18 that displays the call status with notification 22) B, amplifiers AMP, ~AMP4, diode pre-7 DB, date G, ~G0, and each of the above circuits and will be described later. The control circuit 11 includes a CPU that performs control information signal transmission control and signal determination processing for the circuit.

Furthermore, this telephone exchange fiA has a doorphone call detection circuit 14 for detecting a call from the doorphone D. ．． 142 and a doorphone call circuit 15. In addition, this telephone system can also be connected to a security device and an emergency push button, so that when an abnormality occurs, an alarm sound can be issued from the alarm 2) B, and the abnormality detection signal from the security device is detected as a security signal. It is detected by the circuit 16.

The operation of this telephone system will be explained. In the telephone exchange fiA, when the power is turned on and the system starts, the control circuit 11 first performs initial settings, then enters a standby state, and then determines whether an off-hook call is received, determines whether an outside call is received, processes outside calls, and calls the doorbell. It determines the presence or absence of an extension call, processes a doorphone call, determines the presence or absence of an extension call, processes an extension call, and processes an outside line call.

Now, when the handset of one of the telephones C is picked up, the hook/DP detection circuit 2 provided in the 411 terminal of the telephone C detects off-hook and outputs a detection signal to the control circuit 11. . At this time, the control circuit 11 normally outputs 1111. Relay contact rl-r) switched to flA is connected to cross point switch 1091
1 and send a pseudo transmission signal consisting of 400Hz.
! Off 7 through 12? At the same time, the display control circuit 18 is controlled and each notification unit/
) At B, light up the light-emitting display section to indicate that an outside line call is in progress.

The sending of this pseudo call signal continues until the dial signal is input, and when the first dial signal is detected by the hook/DP detection circuit 2, the control circuit 11 stops outputting the pseudo call signal and stores the dial data in the built-in dial signal. The data is stored in a FIFO-type buffer memory, and at the same time a built-in 3-second timer is operated. When the second dial signal is detected while this timer is operating, the control circuit 11 determines that it is an outside line call, performs outside line call processing, and if the second dial signal is not input within 3 seconds. It determines that the call is an extension call and performs extension call processing.

Now, in the case of making an outside line call, the control circuit 11 stores successively input dial signals in the buffer memory, operates the DC connection circuit 3, and detects the outside line dial tone in the outside line dial tone detection circuit 8. Then, the dial data stored in the buffer memory are sequentially read out from the first dial data, and the dial pulse generating circuit 6 is operated to sequentially send dial signals to the outside line e1. Then, when the dial data stored in the buffer 7 memory is exhausted and a certain period of time has passed, the off-hook telephone C is connected
Switch the relay contact ``to connect #12 to outside #111 to enable outside calls.

Next, in the case of an extension call, when 3 seconds have passed after the input of the first dial signal, the control circuit 11 determines that the call is an extension call, and lights up each notification from the OFF switch of the telephone WIC. 22) Turn off the light-emitting display section indicating that B's external call is in progress, and at the same time turn on the light-emitting display section indicating that B's extension call is in progress. At the same time, the control circuit 11 controls the sound generation circuit 17 to send a notification signal for an extension call to the notification unit (B) to which the telephone C on the called side is connected via the control Mis, and the speaker of the notification unit B. Make the extension ring sound from the SP. Note that this notification signal is sent out superimposed on the display signal.

Then, when the extension ring alerts the telephone a Cf) connected to B, the hook/DP detection circuit 2 detects this off hook, and the control circuit 11 In addition to stopping the extension ring tone based on the
Extension 1 connected to telephone cfIt that made the call by 0
2 and the extension 12 to which the telephone C of the called party is connected are connected to enable an extension call.

By the way, while the above-mentioned extension calling is a case where a specific extension is called, this telephone system is designed to be able to call all extensions at once. In this case, the dialing signal corresponding to the simultaneous ringing can be input from the telephone WIC, and in response to the extension ringing from the speaker SP of each notification unit (/X) of one of the telephone WICs When called, an extension call can be made with the telephone 1flc that answered in the same manner as when calling a specific extension as described above.

Next, foreign mail communications will be explained. When an outside call is received, a built-in bell rings in each telephone C.

The incoming call signal at this time is detected by the incoming call detection circuit 5, and the incoming call detection signal is input to the control circuit 11. If the handset of telephone C is picked up in response to the ringing of the built-in bell of telephone C, an outside call can be made. In addition, when the telephone WIC is turned off in this way, the control circuit 11 lights up the light emitting display part of each notification 22) B in accordance with the output of the hook/DP detection circuit 2 to indicate that an outside line call is in progress. let

By the way, in this telephone system, it is possible to put an outside line call on hold and make an internal call or a doorbell call.

In this case, when a dial signal corresponding to hold is input from the telephone C during an outside line call through the telephone WIC, the control circuit 11 reads this dial data and
e 2 is disconnected from the outside #111, and the DC connection circuit 3 is operated to put the outside Al t + in a suspended state. Then, the control circuit 11 operates the hold tone generation circuit 9 to send the hold tone melody to the outside @(1,) through the coupling transformer T, notifying the other party of the outside line that the call is on hold, and also 2) A hold tone melody is also sent to B to make the user aware that the call is on hold, and at the same time, the display control circuit 18 is controlled to light up both light-emitting display units for the call in progress; Displays a message indicating that it is on hold.

Now, after entering the above-mentioned hold state, if a dial signal for making an extension call or a doorbell call is input from telephone C, the extension call processing described above or the doorbell call processing described later will be performed, and the extension call or doorbell call will be terminated. It becomes possible.

In addition, in order to prevent the dial signal input from the telephone C during this outside line call from being output to the outside @i +, the DC closing circuit 3 is temporarily closed at the same time as the input of the dial signal. .

An extension call or the like that is on hold is terminated by turning telephone C on-hook, and returning to the hold state by picking up the handset of telephone C again.

If the user wishes to make an outside call again, a dial signal for canceling hold is input from telephone C to cancel the hold. At this time, the control circuit 11 stops the operation of the hold tone sending circuit 9, controls each part to return to the original outside line call state, and returns to the outside line call state.

After the call is released from hold, if the call is to be terminated, the telephone C can be turned on-hook.

The case where there is a doorbell call will be described below. When making a call from door phone D, a push button provided on door phone D is pressed. The fact that this push button has been pressed is detected by the doorbell call detection circuit 14, and the control circuit 11 responds to this detection output.
operates the sound generating circuit 17, and causes each notification unit (B) to sound a doorbell ringing tone. When the handset of any telephone WIC is picked up in response to the doorbell ringing, the control circuit 11 is crossed by the output of the hook/DP detection circuit 2 installed in the extension 12 to which the off-hook telephone WIC is connected. The point switch 10 is switched to connect the telephone C from which the handset has been picked up to the door intercom communication circuit 15 to enable door intercom communication.

By the way, this doorphone call is made from Announcement 22)B even during an outside line call, and when a dial signal specifying doorphone D is input from telephone C after the above-mentioned hold in response to this call, the outside line is put on hold. You can make doorbell calls.

In addition, in the above explanation, the telephone C is a Guyard pulse type phone, and the external line 11, which is a public telephone line, is a dial pulse line. However, the external line 11 is a pushbutton line, When a button-type telephone WIC is used, it operates in the same manner as described above, except that the PB dialer 7 sends out a dial signal and the PB receivers 12 and 13 detect the dial signal.

The hand-held operation (22) F, which is a feature of the present invention, will be explained below. As shown in FIG. 3, the hand-operated unit F of this embodiment has a plurality of switches SW for call processing on the top surface.
, ~SW s are provided, and switches SW, ~SW,
is for each extension, switch SW, is for all calls, switch S
W and switch 7 correspond to call processing, and switch SW6 corresponds to call processing such as hold/release. Although not shown in FIG. 3, a switch for answering the doorbell may be provided in some cases.

The back of the casing is thickened to improve the operability of the switches SW and SW6 installed on the top surface, which is the operation surface, and the hand control unit (F) is connected to the telephone (1flc) and notification unit (B) on the back. It is equipped with two mononilla jacks M.

FIG. 1 shows a schematic configuration of the internal circuit of the above-mentioned hand-held operation unit F, and FIG. 2 shows its specific circuit.

This hand-held operation unit) F is the one to which telephone C is connected.
It will be connected in parallel to i e 2. However, the telephone C has a normally closed contact ry and a seven-point detection means 20, which will be described later.
It is connected to the inner me2 via the light emitting diode of the bidirectional 7t coupler PC that constitutes the.

The hand-operated unit) F in this embodiment is 77 of the telephone C.
A hook detecting means 20 is connected to a bidirectional 7 Oto coupler PC that detects the state of the call, and a pseudo call processing signal is sent to the telephone exchange A.
and the telephone C via extension e2.
A power source means 22 is provided for generating power from the communication current supplied to the telephone C and supplying power to the signal transmitting means 21 during the period when the telephone C is turned off by the hook detecting means 20.

The signal sending means 21 sends a pseudo call processing signal to the dial pulse signal sending circuit 23 which sends a pseudo call processing signal to i-talk exchange AI: a pseudo call processing signal using a dial pulse signal, and a pseudo call processing signal to the telephone exchange WIA using a button button (DTMF) signal. A control circuit (for example, M88852L (manufactured by Fujitsu, )
〉25, and select whether to send a pseudo call processing signal to the telephone exchange fiA by dial pulse signal or button button signal depending on the contract line type (dial pulse line or button button number). The dial pulse signal sending circuit 23 includes a relay RY in which a normally closed contact ry is inserted in the line connecting the notification unit B and the telephone C, and a control switch SWO. Relay Ry according to the output of circuit 25 (bin 22)
It is composed of a transistor Q1 that controls the drive of the
The button signal sending circuit 24 also includes a control circuit 25.
Figure 7 (C) ~ (PB that selectively generates a pushbutton signal according to the control output (4 to 8 bins) shown in [1>
Diaphragm (e.g. TC31018AF (manufactured by Toshiba))
26, and a transistor Q2 which sends out a pushbutton signal from the output of this PB gearer 26 via a diode pritznode db, which will be described later.

The power supply means 22 includes a capacitor C9 which is charged with the output of the diode bridge db which inputs the non-polarized communication current and whose charging voltage is used as a driving power source for the Guyar pulse sending circuit 23 and the PB Guyar 26, and the charging voltage of the capacitor C6. Control circuit 2 from constant voltage and call current
The telephone C is off-hook by the 7 Otokabura PC of the hook detection means 20, which is inserted in the darkness between the constant voltage circuit 27 using the Zener diode ZD, which creates a power supply for 5, the diode bridge db, and the constant voltage circuit 27. A power supply control circuit 28 consisting of a transistor Q31Q, which is controlled to supply a diode pritzno db output to a capacitor C8, and an external Al1 incoming signal (AC75V
+16 Hz) and prevents the hook detecting means 20 from controlling the power supply control circuit 28 during an outside line call. .

Hereinafter, the operation of the above-mentioned hand-held operation unit) F will be explained. First, during special effects, the telephone C is in an on-hook state, and at this time the DC connection circuit inside the telephone C is open, so the 7t to coupler PC of the hook detection means 20 is off. Therefore, the transistor Q of the power supply control circuit 28,
.
is in an inactive state.

Now, when an outside line incoming signal is sent to the telephone set C through the internal si e 2, the built-in bell of the telephone WIC rings, and the telephone fIIIC is off-hook in response to this outside line call, the off-hook detects the seven-touch detection means 20. 7 Otokapu? PC
is turned on, transistors Q, , Q of the power supply control circuit 28 are both turned on, and the capacitor C0 is charged with the communication current, and power is supplied to the dial pulse signal sending circuit 23 and the PB dialer 26. The charging voltage of the capacitor C0 is made constant by the constant voltage circuit 27, and the voltage is supplied as a power source to the control circuit 25, and at this point, the hand-held operation 22) F becomes operable. This operable state of the handheld operation 22) F is maintained while the telephone C is off-hook. In addition, in the hand-operated unit (hand operated unit) F in this example, when an outside line is received, the 7 Oto coupler PC of the hook detection means 20 is turned on by the outside line incoming signal, so that power is not supplied from the power supply means 22 to the signal sending means 21. Therefore, when making an outside line call, the transistor Q is turned on to prevent the 7-oto transistor of the 7-oto coupler PC from turning on. In other words, even if there is an outside line call, the telephone C connected in parallel does not necessarily go off-hook.

By the way, in the above explanation, the case was explained when an outside call #1 was received, but when the telephone C is taken off-hook to make an outside line call or an extension call, the hand operation unit F becomes operable in the same manner.

A case will be described in which a pseudo call processing signal is sent from this hand-held operation unit F using a dial pulse signal.

For example, to put the call on hold during an outside line call, all you have to do is press the switch SW6 of the hand control (22)F. It should be noted that, of course, in this telephone system, call processing such as holding can be performed by inputting dials from the telephone set C, but in the following explanation, only the case where the hand operation (22) F is used will be explained.

As shown on the left side of FIG. 6(a), when the switch SW is pressed, the output of the control circuit 25 (pin 22) drives the relay Ry, and the normally closed contact
A dial pulse signal having the number of pulses corresponding to the hold shown in FIG. 2(b) is output. Note that when performing an extension call or a simultaneous call, the dial pulse signal is sent out in the same manner except for the number of pulses. Further, when making an extension call after being put on hold, as shown in the center of FIG. 6, after pressing the switch SW6 corresponding to the hold, the switch corresponding to the extension call (for example, SW) is pressed. In this case, after a dial pulse signal with the number of pulses corresponding to the call on hold is sent out, there is a certain pause period, and then a dial pulse signal with the number of pulses corresponding to the extension call is sent out.

Furthermore, when performing 77 king, for example, to receive a call waiting service or to handle other calls (answering a doorbell), press the switch SW as shown on the right side of Fig. 6(a). Then, the control circuit 25 drives the relay Ry to open the dark normally closed contact ry for a certain period of time, and the 77 king signal shown in Fig. 6(b) is output. When the RF normally closed contact ry opens, the supply of communication current to the power supply means 22 is temporarily stopped, but due to the time constant of the capacitor C0 (for example, set to several seconds), the voltage drops to a certain level when each part is in an inoperable state. I try not to do that.

Next, a case will be described in which a pseudo call processing signal is sent out from the hand control 22) F by a button signal. However, in this case, the switch sw4. corresponding to hold and general paging is set so that the push button signal input from the other party and the push button signal of own C can be distinguished. s
If w is pressed, the push button will be activated after sending the 7-king signal.
It is designed to send a 7 button signal. in particular,
As shown on the left side of FIG. 7(a), for example, when the switch SW6 facing the hold button is pressed, the relay RF is driven by the control circuit 25 in the same manner as the above-mentioned sending out operation of the 7-tracking signal, and the normally closed Open contact ry for a certain period of time, 7
A tracking signal is sent. After a predetermined period of time has elapsed after the sending of this seven-calling signal, the PB caller 26 outputs a button signal corresponding to the hold, and this button signal is sent to the telephone exchange A. In addition, when making an extension call after being put on hold, as shown in the center of Fig. 7b), after operating the switch SW6 corresponding to hold, press the switch corresponding to extension call (for example, SW). After a certain period of time has elapsed after the signal is sent, a button signal corresponding to hold is sent out, and after that, a 7 sobbing signal is sent out again, and after a certain period of time, a button signal corresponding to an extension call is sent out. Ru. Here, when only an extension call is to be made as shown on the right side of FIG.

Then, when the outside line call or external call ends, the telephone C
When on-hook, the supply of communication current to the power supply means 22 is stopped under the control of the seven-hook detection means 20, and after a delay of a certain time T, the hand operation unit F returns to the lower operating state.

Note that FIG. #S5 shows the relationship between the hooked state of the telephone C and the operating state of the hand control 22)F. By the way, in the case of this embodiment, the button signal sending circuit 24 was provided in addition to the dial pulse signal sending circuit 23, but in the case of the present invention, at least the dial pulse signal sending circuit 23 is provided.
It is good if you have the following.

[Effects of the Invention 1] As described above, the present invention includes a plurality of switches provided corresponding to the call processing performed by the telephone exchange, and a pseudo call processing signal that is the same as the call processing signal sent from the telephone to the telephone exchange. The device is equipped with a signal sending means for sending a dial pulse signal to the telephone exchange in response to the switch operation, and a hand-operated unit connected in parallel with the telephone is provided to each extension to which the telephone is connected, so that the desired call can be made. You can send a call processing signal to the telephone exchange simply by pressing the corresponding switch on the hand-operated unit.If you make it clear which type of call processing the above switch corresponds to, you can make a call using the telephone. It is not necessary to memorize the correspondence between operations and call processing contents as in the case of inputting a processing signal, and the call processing operation can be easily performed.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram showing a schematic configuration of a hand-operated unit according to an embodiment of the present invention, Fig. 2 is a specific circuit diagram of the same, Fig. 3 is an external view of the same, and Fig. 4 is a circuit diagram of a telephone exchange. , FIG. 5 is an explanatory diagram showing the relationship between the 7-touch state of the telephone and the operation of the hand-operated unit, FIG. 6 is an explanatory diagram of the operation when the Nt1 call processing signal is sent to the telephone exchange using a dial pulse signal, and FIG. FIG. 8 is a system configuration diagram of the telephone system, which is an explanatory diagram of the operation when a pseudo call processing signal is sent to the telephone exchange using a button signal. A is a telephone exchange, C is a telephone, F is a hand control unit,
&, li is an outside line, b is an extension, SW, -3W6fix, and 21 is a signal sending means.

Claims (1)

[Claims] (1) Multiple commercially available telephones are connected to a telephone exchange connected to an external line (public telephone line), each with an extension line, and the telephone exchange switches and forms communication paths between the internal line and the external line or between extensions. In a telephone system that allows external calls and internal calls using a telephone, there are multiple switches installed corresponding to the call processing performed by the telephone exchange, and a pseudo call processing signal that is the same as the call processing signal sent from the telephone to the telephone exchange. The telephone system is provided with a signal sending means for sending a signal to a telephone exchange in the form of a dial pulse signal in accordance with the switch operation, and is provided with a hand-operated unit connected in parallel with the telephone set to extension lines to which the telephone sets are respectively connected.