JPH03220964A - Telephone system - Google Patents

Abstract

PURPOSE:To simply implement talking processing operation by providing a local operation unit connected in parallel with a telephone set to an extension to which a telephone set is connected respectively. 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. 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. Thus, 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 Application Field 1] The present invention relates to a telephone system that allows external and internal calls to be made using commercially available telephones. [Prior art l] 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 telephone 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 one that allows you to make phone calls. [1JI11 to be solved by the invention By the way, this type of telephone system has functions such as extension calling, holding,
- It is 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, dialing of the telephone and 777
Call processing is performed by the king operation. 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. It's fleeting. The present invention has been made in view of the above-mentioned points, and its purpose is to provide a telephone system that can easily perform call processing operations. 1. In order to achieve the above object, the present invention provides a plurality of switches provided corresponding to call processing performed in a telephone exchange;
and signal exit means for sending a pseudo call processing signal identical to the call processing signal sent from the telephone to the telephone exchange as a push-button 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. [Action J. By having the above-described configuration, the present invention enables a call processing signal to be sent to the telephone exchange simply by pressing the switch on the hand-operated unit corresponding to the desired call processing, and the switch By making it clear whether the call processing corresponds to the above, it is not necessary to memorize the correspondence between operations and call processing contents, as is the case when inputting a call processing signal using a telephone. [Embodiment 1] An embodiment of the present invention is shown in FIGS. 1 to 8. The system configuration of the telephone system of this embodiment is basically the same as the conventional system, as shown in FIG. A telephone exchange mA is connected to the telephone exchange mA, and a plurality of commercially available telephones @C are detachably connected to the telephone exchange A, which are connected to the telephone exchange A by an extension line 12 which is a communication line and a control #i e s which is a transmission line for control signals. It is composed of the above-mentioned telephone exchange WIA, external@e, and extension 12.
Alternatively, by switching and forming the communication path between the internal telephones 1812 and 1812, external telephone calls and internal telephone telephone calls can be made using the telephone WIC connected to the notification unit (B). In addition, in this telephone system, the door intercom D is connected to the telephone exchange WIA through the call al 14, and the telephone C can also be used to make door intercom calls. Note that each notification unit (B) is provided with a monoplane jack, through which a general commercially available telephone WiC can be detachably connected. Also,
This notification unit) B includes a speaker for reproducing notification signals such as an extension ringing tone or a doorphone ringing tone sent via the control line 1, and this control unit #11. The device is equipped with a light-emitting display section that distinguishes display signals, which are voltage signals, sent through the terminal and indicates whether an internal call is in progress or an outside call. It's Nishide. However, if calls are processed using only this configuration, such as the 11-telephone-C gouyal operation or the 7-touching operation, the user must memorize the operations corresponding to call processing, and anyone can easily perform call processing operations. There's no way I can do it. Therefore, in this embodiment, in order to make it easier for the user to process calls, the phone
The specific configuration of this embodiment will be explained below, but first, the configuration and basic operation of the telephone exchange A will be explained. Telephone exchange A, as shown in FIG.
1.7 dial pulse (DP) detection circuit 2. ~2
3 and talking current supply circuits 41 to 4. It further includes an incoming call detection circuit 5, a DC connection circuit 3, a DP generation circuit 6 that makes an outside line call with a dial pulse, a push button (PB) dialer 7 that makes an outside line call with a push button tone, and an outside line that detects an outside line dial tone. A dial tone detection circuit 8, a hold tone sending circuit 9 that sends out a hold tone, a cross point switch 10 that sets a call route, and a PB that receives a push button signal.
Receivers 12, 13, a sound generation circuit 17 that generates various notification sounds, a display control circuit 18 that displays the call status on the notification unit B, an amplifier AMP+~AMP diode DB, D) G+- G3, and a control circuit 11 including a CPU that performs control information signal transmission control and signal determination processing for each of the above-mentioned circuits and circuits to be described later. Further, this telephone exchange A has a doorphone call detection circuit 14 for detecting a call from the doorphone D. ．． 14□ 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 unit (B), and the abnormality detection signal from the security device is sent to the security signal detection circuit 16. Detect with. 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 any telephone WIC is picked up, the hook/DP detection circuit 2 provided in the extension 12 to which the telephone C is connected detects off-hook and outputs a detection signal to the control circuit 1. At this time, the control circuit 11 switches the relay contacts r1 to r, which are normally switched to the outside eiie and ts, to the crosspoint switch 10@, and sends a pseudo call signal of 400 Hz to the off-hook telephone WIC through the inside #112. At the same time, the display control circuit 18 is controlled to light up the light-emitting display part for indicating that an outside line call is in progress in each notification unit B. The sending of this pseudo call signal continues until the input of the dial signal, and when the first dial signal is detected by the DP detection circuit 2, the control circuit 11 stops outputting the pseudo call signal and transmits the dial data. The data is stored in the built-in FIFO type buffer memory, and at the same time, the built-in 3-second timer is activated. 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 sequentially stores the dial signals that are input successively into the buffer/memory, operates the DC closing circuit 3, and detects the outside line dial tone in the outside line dial tone detection circuit 8. When detected, the dial data stored in the buffer/memory is 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 11. Then, when the dial data stored in the buffer memory is exhausted and a certain period of time has passed, extension 1 to which the off-hook telephone C was connected
2 outside m1. Switch the relay contact r so that it connects to the outside line, making it possible to make an outside line call. Next, in the case of an extension call, when 3 seconds have elapsed after the first dial signal was manually input, the control 1 circuit 11 determines that the call is an extension call, and each of the lights that have been turned on since the telephone W1c was turned off 77 Notification Unit) Turns off the light-emitting display section indicating that B's outside call is in progress, and at the same time turns on the light-emission display section indicating that B's extension call is in progress. At the same time, the control circuit 11 controls the sound generating circuit 17 to send a notification signal for calling an extension to the notification unit (B) to which the telephone C on the called side is connected via the control unit (11113). ) Make an extension ring sound from B's Subi SP. Note that this notification signal is sent out superimposed on the display signal. Then, by this extension ring tone, the notification unit)
When the handset of telephone C connected to telephone B is picked up, the hook/DP detection circuit 2 detects this off-hook, and the control circuit 11 stops the extension ringing based on this off-hook, and also switches the cross-point switch 10
1 of the connected telephones m c fJe that made the call
11 e 2 and the extension e 2 to which the telephone C of the called party is connected are connected to enable an extension call. By the way, although the above-mentioned extension call is a case of calling a specific extension, this telephone system also allows calling all extensions at once. In this case, it is sufficient to input a dial signal corresponding to simultaneous ringing from the telephone WIC, and when the handset of any telephone aC is picked up in response to the extension ringing tone from the speaker SP of each notification unit) B, the above-mentioned An extension call can be made with telephone C that responds in the same manner as when calling a specific extension. Next, receiving an outside call will be explained. When you receive an outside call,
A built-in bell rings in each telephone WIC. 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. Above phone WiC
If the handset of telephone C is picked up in response to the ringing of the built-in bell, an outside call can be made. When the telephone WIC is off-hook in this manner, the control circuit 11 lights up the light emitting display section of each notification unit y)B in accordance with the output of the hook/DP detection circuit 2 to indicate that an outside line call is in progress. 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 inputted from the above-mentioned telephone C through the telephone WIC during an outside line call, the control circuit 11 reads this dial data and calls
2 is disconnected from the outside wire 11, and the DC connection circuit 3 is operated to put the outside *e + in a suspended state. Then, the control circuit 11 operates the hold tone generation circuit 9 to send a hold tone melody to the outside line e1 via the coupling transformer T, notifying the other party of the outside line that the call is on hold, and also sending the hold tone melody to each notification unit (B). The caller also sends a hold tone melody to make the user aware that the call is on hold, and at the same time controls the display control circuit 18 to light up both optical display sections for the call in progress, indicating that the call is on hold. A display indicating this is displayed. 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. Incidentally, in order to prevent the dial signal input from the telephone set C during this outside line call from being output to the outside line 1, the DC connection 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 on-hook telephone set C, and returning to the hold state by picking up the handset of the telephone WIC again. If you want to make an outside call again at Uni, call 1fI.
Input a dial signal for canceling the hold from 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 canceling the hold, if you want to end the call, you just have to put the phone fic 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 activated by the output of the hook/DP detection circuit 2 provided in the internal eli e 2 to which the off-hook telephone WIC is connected. switches the cross point switch 10 to connect the telephone fiC from which the handset has been picked up and the door intercom call circuit 15 to enable door intercom call. By the way, this doorphone call is made from the notification unit (B) even during an outside line call, and in response to this call, after the above-mentioned hold, if a dial signal specifying the doorphone D is input from the telephone WiC, the outside line is put on hold. You can make doorbell calls. In the above explanation, a dial pulse type phone is used as the telephone Wlc, and the outside line 11, which is a public telephone line, is a dial pulse line. However, the outside #i e + is a push button line. When a push-button telephone WIC is used, the operation is the same as described above, except that the dial signal is sent out by the PB Guiyara 7 and the dial signal is detected by the PB Resino < 12° 13. do. The hand-operated unit (F), which is an e 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.
+-3Ws are provided, and switches SW, ~S W z
is for each extension, switch SW, is for all calls, switch S
W and switch SW6 correspond to call processing such as holding/cancelling from hold. 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 SW1 to SW6 provided on the top surface, which is the operating surface, and the hand-operated unit F is connected to the telephone C and notification unit B on the back. Equipped with two mononilla jacks M. The schematic structure of the internal circuit of the above-mentioned hand-operated unit/ ) F is shown in FIG. 1, and its specific circuit is shown in FIG. This hand-operated unit) F will be connected in parallel to #i e 2 to which the telephone 11FIC is connected. However, the telephone C is connected to the extension line 12 via a normally closed contact ry, which will be described later, and a light emitting diode of a 7T tokabura PC that constitutes the 7T detection means 20, which will be described later. The hand-operated unit (F) of this embodiment uses a bidirectional 7-point coupler PC that detects the 7-on state of the telephone C.
The call detection means 20 and the pseudo call processing signal are sent to the telephone exchange A.
a signal sending means 21 to send a signal to the telephone
The present invention includes a power supply means 22 which generates power from the communication current supplied to the IC and supplies power to the signal transmission means 21 during the period when the telephone C is off-hook by the hook detection means 20. The signal sending means 21 includes a dial pulse signal sending circuit 23 that sends a pseudo call processing signal to the telephone exchange 1flA using a dial pulse signal, and a push button signal sending circuit that sends a pseudo call processing signal to the telephone exchange WIA using a push button (DTMF) signal. 24, and a control circuit (for example, M88852L (manufactured by Fujitsu) consisting of a CPU that controls the operation of the dial pulse signal sending circuit 23 and the push button signal sending circuit 24 according to the operation of the switches SW1 to SW6.
) 25 and select whether to send a pseudo call processing signal to the telephone exchange fiA by dial pulse signal or push button signal depending on the type of contract line (dial pulse line or push button line M). It is configured with B changeover switch SWo. Here, the dial pulse signal sending circuit 23 includes a relay R11 in which a rIi contact ry is inserted into a line connecting the notification unit B and the telephone C.
and relay R according to the output (pin 22) of the control circuit 25.
The push button signal sending circuit 24 is configured with a transistor Q1 that controls the drive of the control circuit 2.
PB that selectively generates push button signals according to the control outputs (4 to 8 bins) shown in FIGS. 7(c) to 7(g) of 5.
Guyara (e.g. Tl 1018AF (manufactured by Toshiba))
26, and a transistor Q2 which sends out a push button signal from the output of this PB gearer 26 via a diode presono db which will be described later. The power supply means 22 includes a capacitor C8 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 dial pulse sending circuit 23 and the PB dialer 26, and the charging voltage of this capacitor C8. Control circuit 2 is made from the communication current by making it a constant voltage.
Telephone C is off-hook by a constant voltage circuit 27 using a Zener diode ZD, which creates a power supply for 5, and a 7 Otocoupler PC of the hook detection means 20, which is inserted between the diode bridge db and the constant voltage circuit 27. Transistor Q, which is controlled to provide the diode prisno db output to capacitor C8 only when Q. A power supply control circuit 28 consisting of Q, and an outside line incoming signal (AC
75V + 16 Hz > and prevents the hook detecting means 20 from controlling the power supply control circuit 28 when making an outside line call. . Hereinafter, the operation of the above-mentioned hand-operated unit) F will be explained. First, during standby, the telephone C is in an on-hook state, and at this time, the DC connection circuit inside the telephone WIC is open, so the 7 automatic coupler PC of the 7-trick detection means 20 is turned off. Therefore, the transistor Q of the power supply control circuit 28
,,Q, are held in the OFF state, and the drive power of the hand-operated unit)
F is inactive. Now, when an outside line incoming signal is sent to the telephone WIC through the extension 12, the built-in bell of the telephone 8 IC rings, and the telephone C goes off-hook in response to this outside line call, the off-hook causes the 7-touch detection means 20 to Otocoupler PC turns on,
As a result, the transistor Q3 of the power supply control circuit 28. Q,
are both turned on, and the capacitor C0 is charged with the communication current,
Dial pulse signal sending circuit 23 and PB dialer 2
At the same time, power is supplied to the capacitor C0, and a voltage obtained by making the charging voltage of the capacitor C0 constant by the constant voltage circuit 27 is supplied as power to the control circuit 25, and at this point, the hand-held operation unit F becomes operable. And this hand-operated unit)
The ready state of F is maintained while the telephone WIC is off-hook. In addition, in the hand-operated unit (F) of this embodiment, when an outside line call is received, the 7-touch detection means 2 is activated by the outside line incoming signal.
In order to prevent power from being supplied to the signal sending means 21 from the power supply means 22 when the photocoupler PC 0 is turned on, the transistor Q is turned on at the time of an outside line call so that the transistor Q 7 of the photocoupler PC is not turned on. It is. In other words, even if there is an outside line call, the telephone WiC to which the local operation unit (F) is connected in parallel is not necessarily turned off. By the way, in the above explanation, we have explained the case when an outside line call is received, but when you take telephone C off-hook to make an outside line call or an extension call, you can use the local operation unit in the same way.
becomes operational. A case will be described in which a pseudo call processing signal is sent from this hand-held operation unit (F) by a dial pulse signal. For example, if you want to put the call on hold during an outside line call, all you have to do is press the switch SW6 on the hand-operated unit (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 WIC, but in the following explanation, only the case where the hand-held operation (2) F is used will be explained. When the switch SW6 is pressed as shown on the left side of FIG.
A dial pulse signal having the number of pulses corresponding to the hold shown in FIG. 2(b) is output. It should be noted that even when calling an extension or calling all at once, dial pulse signals are sent out in different operational patterns, with only a difference in the number of pulses. In addition, when making an extension call after being put on hold, press the switch SWs corresponding to hold and then press the switch corresponding to extension call (for example, SW), as shown in the center of Fig. After sending out the dial pulse signal with the number of pulses corresponding to the hold, there is a certain pause period, and then the 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 the doorbell), press the switch SW5 as shown on the right side of FIG. 6(a). , the control circuit 25 drives the relay RF to keep the normally closed contact ry WR for a certain period of time, and the sixth
A 7-tracking signal shown in FIG. 3(b) is output. Note that when the normally closed contact ry of the relay RV opens when the switch SW, -8W6 is operated, the supply of communication current to the power supply means 22 is temporarily stopped, but the time constant of the capacitor C0 (for example, set to several seconds) This ensures that each part is in an inoperable state and the voltage does not drop to a certain level. Next, a case will be described in which a pseudo call processing signal is sent from the hand-operated unit (F) by a push button signal. However, in this case, in order to distinguish between the push-button signal input from the other party and the push-button signal of 0, in the case of hold or general call, the switches sw, , sw6 corresponding to the above-mentioned call processing are set. If you press 7?
The push button signal is sent after the king signal is sent. Specifically, as shown on the left side of FIG. 7(a), for example, when the switch SW6 facing the hold button is pressed, the control circuit 25 causes the relay Ry is driven to close the normally closed contact ry for a certain period of time, and a 7-turning signal is sent out. After a certain period of time after sending this 77 king signal, P
A push button signal corresponding to the hold is output from the B Guyarer 26, and this push button signal is sent to the telephone exchange fi.
Sent to A. In addition, when making an extension call after being put on hold, as shown in the center of FIG. After a certain period of time has elapsed after the sending of the 77 king signal, a push button signal corresponding to the hold is sent, and immediately after that, the 77 king signal is sent again.
Further, after a certain period of time, a push button signal corresponding to an extension call is sent out. Here, when only an extension call is to be made as shown on the right side of FIG. 7(,), a push button signal corresponding to the extension call is sent without a 7-king signal. 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 77-bit detection means 20, and after a delay of a certain time T, the hand-held operation unit F returns to the inoperative state. Incidentally, FIG. 5 shows the relationship between the hooked state of the telephone C and the operating state of the hand-held operation unit F. By the way, in the case of this embodiment, the dial pulse signal sending circuit 23 was provided in addition to the push button signal exit circuit 24, but in the case of the present invention, it is sufficient to include at least the push button signal sending circuit 24. (Effect 1 of the invention As described above, the present invention has a plurality of switches provided corresponding to the call processing performed in 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 push-button signal to the telephone exchange in response to the switch operation, and is provided with a hand-operated unit connected in parallel with the telephone to the extensions to which the telephone is respectively connected. By simply pressing the switch on the hand control unit that corresponds to call processing, you can send a call processing signal to the telephone exchange. Unlike when inputting a call processing signal, it is not necessary to memorize the correspondence between operations and call processing contents, 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 operation unit, FIG. 6 is an explanatory diagram of the operation when a pseudo call processing signal is sent to the telephone exchange using a dial pulse signal, and FIG. The figure is an explanatory diagram of the operation when a call processing signal *t' is sent to the telephone exchange using a push button signal, and FIG. 8 is a system configuration diagram of the telephone system. A is a telephone switchboard, C is a telephone, F is a hand-operated unit,
e1 is an outside line, 12 is an extension line, SW, -8W6+i switch, 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 push-button signal in response to the switch operation, and is provided with a hand-operated unit connected in parallel with the telephone to extension lines to which the telephones are respectively connected.