JPS59144252A - Telephone set used for exchange system with calling subscriber number informing function - Google Patents

Abstract

PURPOSE:To prevent use for an antisocial purpose by transmitting a calling subscriber number to a called subscriber before a call signal is generated and sending a busy-back tone to the calling subscriber when the telephone set of the called subscriber enters in the off-hook state. CONSTITUTION:A means 35 receives and displays the calling subscriber number on a means 38. Telephone subscriber numbers are registered previously in a storage means 40 and the calling subscriber number from the means 35 is callated with the registered numbers by a callating means 36 to judge whether the termination is allowed or not. When the means 36 judges the rejection of the termination, a means 42 outputs the same response as an off-hook signal to exchange facilities within a spacific time to interrupt the transmission of the call signal, and also send the busy tone to the calling subscriber side. Thus, a countermeasure to malicious telephone utilization for the antisocial purposes is taken efficiently without spoiling the effectiveness of telephone.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone used in a public switched telephone system with a caller ID function.

(Background of the Invention) As is well known, in current public telephone networks, the called party only picks up the telephone in response to the telephone ringing (referred to as off-hook) and interacts with the calling party. It is possible to know who is calling, but it is not possible to know in advance who is calling. In data communications and facsimile, the code of the calling party is automatically transmitted to the other party, but the ID code is also transmitted only after the line between the calling party and the called party is established. ” It is not particularly different from a dual public telephone line network.

This is one aspect of the anonymous nature of phone calls that is appreciated, but on the other hand, there are prank calls! 11! Garase telephones 9 are being used for anti-social purposes such as being used for crimes.

To prevent anti-social use of these telephones, (1) incoming call restriction services using a dual numbering system with a general number and a secret number;
2) A call restriction service that only accepts calls from specific optical callers at night or at specific times; (3) A reverse optical caller ID search service that is performed at the request of the police in the case of a crime, etc. Countermeasures have been adopted.

However, the incoming call restriction (1) is of no use if the secret number is known, and there is also the problem that emergency calls cannot be received from people who do not know the secret number.

(2) Incoming call restriction makes it impossible to receive truly necessary communications from people other than specific callers. (3) Reverse detection takes too much time and is ineffective against harassing calls, such as making only the ringer and then immediately hanging up.

As described above, the current situation is that no effective countermeasures have been found against the use of telephones for malicious and anti-social purposes.

(Object of the Invention) In view of the above-mentioned conventional problems, the present inventors have devised a method to effectively deal with the use of telephones for malicious and anti-social purposes without impairing the effectiveness of telephones at all. We have developed a telephone exchange system that can The system transmits the calling party's number to the called party prior to the ringing signal, and when the called party's telephone goes off-hook within a certain period of time after transmitting the calling party's number, the called party's The system is configured to stop sending a paging signal to the caller and also send a busy tone to the caller.

The purpose of this invention is to connect to the above-mentioned switching system with the caller ID notification function, and to be able to know the telephone number of the other party before the ringing bell rings, and to prevent the caller from receiving a call from a number other than the number set and registered in advance. To provide a telephone that can automatically reject incoming calls.

(Structure and Effect of the Invention) In order to achieve the above object, the present invention provides a means for receiving the above-mentioned calling party number, a means for displaying the received illegal calling party number, and an arbitrary telephone subscriber number. a storage means capable of setting and registering a caller number in advance, and a checking means that compares the calling party number received by the receiving means with the registration number of the storage means to determine whether to permit or reject the incoming call; When the verification means determines that the incoming call is rejected, the present invention is characterized in that it outputs the same response as an off-hook response to the exchange equipment within the predetermined period of time.

According to this telephone, incoming calls are automatically rejected for calls with numbers other than the registered telephone number, a busy tone is sent to the other party, and the ringer does not ring on the called party. Also, even if the call is automatically rejected, the phone number will be displayed, so you can use that number to call the other party. Therefore, unlike in the past, when a relative calls using an external phone other than the registered number, the call is rejected and there is no way to contact them. You can call the other party by looking at the display.

In this way, the original effectiveness of telephones is hardly compromised, and the use of telephones for antisocial purposes such as pranks and harassment9 crimes that take advantage of the anonymity of telephones can be significantly restricted. can.

(Description of Embodiments) FIG. 1 is a block diagram showing the configuration of a telephone exchange system (electronic exchange 1 @ machine) with a calling party number notification function, which is the premise of the present invention. Each seasonal month in this figure represents the following structure.

Location: Subscriber telephone LLN Two-line link network TLN: I-rank link network IOT: Own office trunk IC two-person trunk I RT: Incoming register trunk O8T: Outgoing center trunk OGT: Outgoing trunk ○RT: R incoming register trunk RBT: Ringing trunk BBT: Busy trunk R8T: Incoming caller ID trunk RGT: Ringing signal trunk LSCN: Subscriber line scanning device TSCN: Trunk scanning device LSCni line link channel driver TSC: l
- Rank link channel drive device RC: Relay drive device $D Double signal decomposition device pu: Main control device The main control device CPU operates according to a program stored in the memory 81 and centrally controls the entire exchange.

Further, an external memo 83 and an I10 console 84 are connected to the main controller CPU via an I10 channel 82.

``Here, the provision of an incoming caller ID notification trunk R8T is a hardware feature of this system that is different from the conventional system. This system is realized by adding a circuit called incoming caller ID notification trunk R3T and changing the related software (control sequence) of the main controller CPU. Incoming caller ID notification Each of the above components other than the trunk RST is well known, and the basic control sequence of a telephone exchange is also well known.The features of this system will be briefly explained below.

Subscribers who receive the calling party ID service related to this invention are registered in advance, and registration data to that effect is stored in the external memory 83. In addition, subscribers who receive this service can call 1191! as explained below. A telephone equipment according to the present invention having a circuit for receiving a telephone number and the like is installed.

The operation of the above-mentioned exchange system will be divided into several cases and explained sequentially according to each control sequence.

A...When a call is made or received within your own station, and the called party has not registered for the calling party ID service (in other words, it is exactly the same as a conventional telephone exchange), the control sequence in this case is This is shown in Figure 2A.

(1) When the caller takes the handset off-hook, the main controller CPU detects the call based on the monitoring status of the subscriber line scanning device LSCN, and the line link network LLN, I
- Rank link network TLN sends a call and checks the availability of the register trunk OR king. At the same time, the calling subscriber number and its telephone type are checked from the registered data in the external memory 83.

<2> Line link network LLN, trunk link network TLN, outgoing register trunk OR
When all the T vacancies are found, the line link path driver LSC, trunk link path driver - "SC"
connects the outgoing register trunk ORT that is compatible with the caller's telephone type with the subscriber line, and operates the relay drive device RC to connect the optical register trunk ORT to the subscriber line.
A dial tone is sent to the calling telephone operator via T. From this point on, the originating register trunk OR1'' is in a state of waiting to receive dialing information from the calling telephone operator E1-.

(3) The main controller CPU receives the dial signal via the transmission register ORT and makes a determination. When the first pulse is received, the relay drive device RC is operated to stop transmitting the beep. When a dial signal is received, it is sequentially stored in the received number area in the memory area for the calling register trunk ORT.

(4) When the reception of the die 1 full signal by the originating register trunk ORT is completed, the main controller CPU uses information such as the called subscriber number 1 and the calling subscriber number in the memory area for the originating register trunk ORT. Analyze incoming calls.

If the call is outside the local station, the process moves to relay processing.

(5) If the call originates from or arrives at the own station, an incoming call is further analyzed to check whether the called subscriber has registered for the calling party registration number notification service. When the calling party ID notification service is not registered, this is the same as in the conventional system, and vacancies in the local trunk IOT, ring tone 1 to rank RBT, and ring signal trunk RGT are checked.

(6) When all lines are free, connect the ringer trunk RBT instead of the calling register trunk ORT to the calling subscriber's line, and send a ringer tone to the calling telephone to notify the other party that it is ringing. . At the same time, a ringing signal trunk RGT is connected to the called subscriber line, through which a ringing signal is transmitted to the called telephone, and a bell is rung to notify the incoming call. After this,
The trunk scanning device TSCN monitors the response of the called telephone via the ring signal 1 to rank RGT.

(7) When it is detected through the trunk scanning device TSCN that the called telephone 1 has been knocked off, the main controller CP
U connects both the calling subscriber line and the called subscriber line using the internal trunk IOT, and connects the calling side to the ring trunk RBT.
and disconnect the called party from the ringing signal trunk RG.
Separate from T and create a communication path connecting the two.

(8) A call path is created using trunk IOT within the local office,
The main controller CPU monitors both +Xf of the trunk IOT within its own station using the trunk scanning device TSCN, and detects the end of a call (on-hook). When one of them knocks off, the main controller CPU disconnects both parties from the communication path and ends the call.

B: When a call is received within the local station and the called subscriber has registered for the calling party ID notification service. The control sequence in this case is shown in FIG. 2B.

The sequence of (1) to (4) is the same as the sequence of (1) to (4) in the case of Δ in the case described above.

(5) When it is detected through incoming call analysis that the called subscriber is registered with the calling party ID service, the local trunk IOT, the incoming calling party ID trunk R8T, the ringing signal trunk RGT, Check the availability of the ring trunk RBT and put it on hold.

(6) If the caller is completely free, connect the ringer trunk RBT instead of the calling register trunk ORT to the calling subscriber's line, and send the ringer to the calling telephone to indicate that the other party is being called. convey. At the same time, connect the incoming calling party number notification trunk R8T to the called subscriber line, and transfer the calling subscriber number transferred to the memory area for the ORT message memory area R8T in the sequence (5>) to the R8T. via O
It is transmitted using the same method as the selection signal transmission during relaying, using a tone in the M-fold signal or OF-fold signal format. Thereafter, the system waits for a certain period of time for information from the called subscriber to accept or reject the call.

As described below, subscriber telephones registered for the caller ID notification service receive callers sent in the OM double signal or OF double signal format in the sequence (6) above. A function to receive number information and display the number on the display or print it on a printer, and an incoming call selection that allows you to reject the call when the calling number does not match a preset and registered number. Features are loaded.

A call rejection response means that the telephone goes off-hook within a certain period of time after receiving the calling party's number from the exchange. In order to automatically reject incoming calls, the telephone of the present invention is designed to automatically reject incoming calls.
A relay contact is provided so that off-hook and response responses can be sent back to the subscriber line (described later).

(61) If an off-hook response (call rejection response) is returned within a certain period of time after receiving the calling party number from the called subscriber side, the main controller CPU immediately disconnects the called subscriber line. At the same time, a busy tone trunk BBT is connected to the calling subscriber's line instead of the ringing tone trunk RBT, and by changing the ringing tone to a busy tone, the caller is informed that the call has been rejected. This sequence ends when the caller hears the busy tone and goes on-hook, and all communications are complete.

(62) If the called subscriber does not knock off within a certain period of time even after receiving the calling party's number, the main controller CPU determines that there is an intention to receive the call, and the incoming caller is sent to the called subscriber's line. Call signal trunk RG instead of number notification trunk R3T
Connect T. That is, a ringing signal is sent to the called telephone via the RGT and the bell rings to notify the called telephone of the incoming call. Thereafter, the trunk scanning device TSCN monitors the called party's response via the ring signal trunk RGT.

In addition, during the above-mentioned control sequence J-3 and within the above fixed time period after notifying the calling party number to the called party and waiting for the called party's response, the ringing trunk RBT is not sent to the calling party. You may choose not to connect. In this case, the calling party does not know that the called party has intentionally rejected the call.

The sequence of (7) and 8) is (7) of A in the previous case.
The sequence is the same as <8).

C: In the case of making and receiving calls by relay The control sequence in this case is shown in FIG. 2C.

The sequence of 1) to (4) is the sequence of (1) to (4) in A in the previous case.
The sequence is the same as 4).

(51) If it is detected in the incoming call analysis that the called subscriber is another station, the outgoing sender trunk O3T and the outgoing I~
Check whether there is a vacant rank OGT, and if there is a vacant rank, the outgoing center trunk O8T sends an OM double signal or OF double signal to the called subscriber number M as a selection signal via the outgoing trunk ○GT. .

(52) Arrival 1! Il! The machine receives the called subscriber number as a selection signal at the incoming register trunk IRT via the incoming trunk ICT. When the input register trunk ■R°" receives the selection signal, it stores it in the reception number area of the IRT message memory area.

(53) When the reception of the selection signal by the input register IRT is completed, the main control unit CPU analyzes the incoming call based on the call subscriber number S in the IRT message memory area.

As a result of the incoming call analysis, if the called subscriber has not registered the calling party ID service, check the availability of the ring tone trunk RBT and the ring signal trunk RGT.
) Executes the same processing as the following sequence.

(54) As a result of incoming call analysis, if the called subscriber has registered for the calling party ID service (or sends a calling party ID notification request to the originating 1 @ machine and sends the called subscriber number The calling party number is transferred to the destination exchange using the same method as the selection signal.

55) Arrival 1! Once the calling party number has been received at the machine, the incoming calling party ID notification trunk R8T.

The empty ring signal trunk R'GT and ring tone trunk RBT are checked, and then the sequence from (6) onwards in case B is executed.

The above is an example of the control sequence of the calling party ID notification request interrogation exchange system which is the premise of this invention. Next, the configuration of the telephone according to the present invention will be explained.

FIG. 3 is a block diagram showing the configuration of a telephone according to an embodiment of the present invention. A subscriber line 30 is connected to a terminal 31 and led into a transmitting/receiving network 32.

Transceiver network 32 is a well-known IC telephone circuit, such as a Model 600 or Model 601, and includes a handset 33 and a bell 34. The transmitting/receiving circuit network 32 including the handset 33 and the bell 34 has the structure of a normal telephone.

In addition to the above configuration, the telephone of the present invention includes a calling number receiving circuit 35, a microcomputer 36, etc., a ROM 37 storing programs, and a display 38 for displaying the received calling number. 3 printers for displaying and recording the caller number received, a RAM 40 for setting and registering numbers that are permitted to receive calls, and a keyboard 41 for inputting settings and registration of arbitrary numbers in the RAM 40.
, a circuit 42 for driving a relay contact 43 for automatically responding to a call rejection, and a power supply circuit 46 for operating these.

The input end of the calling party number receiving circuit 35 is connected to the hook switch 4.
4 and a coupling capacitor 45 to the subscriber line 3.
Connected to 0. The hook switch 44 is a contact that is linked to a knock switch in the transmitting/receiving circuit network 32, and is a contact that closes when the handset 33 is on the hook.

In other words, while the handset 33 is on-hook,
The subscriber line 30 is also connected to a calling party number receiving circuit 35 via a coupling capacitor 45. In this state, as explained earlier, when the calling party number is sent from the switching equipment in the form of an OM double signal or an OF double signal prior to the paging signal, that signal is sent to the calling party number receiving circuit 35. is received and demodulated.

When the handset 33 goes off-hook, the hook switch 44
is heard, and the calling party number receiving circuit 35 is disconnected from the subscriber line 30 side.

The microcomputer 36 executes a program stored in the ROM 37 and controls each of the above-mentioned components.

The first basic control function is that when the calling party number is received by the calling party number receiving circuit 35, the number is displayed on the display 38 and printed by the printer 39.

As the display 38, a liquid crystal panel, an LED panel, a fluorescent display tube, or the like is used. If the three printers operate at high speed, they can also be used as a display, and in that case the display 38 may be omitted. Furthermore, if the display 38 displays 7j caller l @ and maintains it until the next call arrives, the printer 39 may be omitted since the caller number can be retained for a certain period of time.

The second basic control function by the microcomputer 36 is that when the calling party number is received by the calling party number receiving circuit 35, the number is sequentially compared with the incoming call permission number set and registered in the RAM 40. If the registration number does not match any registration number, the relay contact 43 for responding to incoming call rejection is closed for a certain period of time via the drive circuit 42. Now, the same response as when going off-hook is sent back to the exchange, and the exchange receives this as a response to reject the call.

The third basic control function is to input the incoming call permission number input into the RAM 40 in response to the operation of the keyboard 41. This write operation occurs while the phone is on-hook.

This embodiment further includes the following functions.

Information indicating the importance level is added to the incoming call permission number set and registered in the RAM 40, and when a call is detected from the number with the highest level of importance, a red lamp, for example, is turned on, and the next number with the highest level of importance is activated. You can do things like turn on a yellow light when you receive a call from a high number. For example, information corresponding to the personal behavior of a family member is added to the registered number, and when a person receives a call from the number registered, a red light is turned on, and a red light is displayed when a call is received from the number registered by another person. It can also be modified to turn on a yellow lamp when there is an incoming call.

Furthermore, if this is applied, multiple telephones (only the portion including the transmitting/receiving circuit network 32, handset 33, and bell 34), such as a parent-child telephone, are installed, and the number of the incoming call is changed depending on the number of the incoming call. It can also be developed into a private telephone switching network that controls telephone connections.

Furthermore, in order to deal with emergency calls from numbers that are not registered in the RAM 40, the following function has been added.When a call comes from a number that is not registered in the settings, As explained, the call will be automatically rejected.

At that time, the number is memorized and a monitoring timer is activated to measure a certain period of time. If a call from the same number is received again before the monitoring timer expires, the call is rejected and the history counter is incremented. At the same time, the history counter is 81.
It is determined whether the numerical value has reached a predetermined value (for example, three times), and an alarm is issued when the value has reached the predetermined value. In other words, even if the number is not registered in the RAM 40, if a call is received from the same number a certain number of times within a certain period of time, an alarm lamp will be turned on or an alarm buzzer will sound, indicating that continuous calls with the same calling number have been received. Let me know what happened. Knowing this, if the called party calls the other party's number, an emergency contact can be made. In order to carry out this control for a plurality of numbers, a plurality of sets of calling party number, monitoring timer, and history counter tables are provided in an appropriate memory area of the microcomputer 36.

Note that the above function may be modified to allow incoming calls instead of automatically rejecting incoming calls when calls from the same number are received a certain number of times within a certain period of time.

An example of a control procedure for realizing the control function by the microcomputer 36 described above is shown in the flowchart of FIG.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the switching system that is the premise of this invention; FIGS. 2A, 2B, and 2C are explanatory diagrams showing the control sequence of the above switching system in different cases; FIG. 4 is a block diagram showing one embodiment of the telephone according to the present invention, and FIG. 4 is a flowchart showing an example of a program executed by the microcomputer shown in FIG. Placement: Subscriber telephone L L, N: Work TLN to line link screw 1
: I-rank link network IOT: Local station 1~
Rank IC two-person trunk IRT: In register trunk O8T: Outgoing sender trunk OGT: Outgoing trunk ORT: Outgoing register trunk RBT: Ringing trunk BBT: Busy trunk R8T: Incoming caller ID trunk RGT: Ringing signal trunk LSCN: Subscriber line scanning device TSCN: I- rank scanning device LS'C Ni line link channel driver TSC: I-
Rank link communication path drive device RC: Relay drive device SD: Signal decomposition device cpu: Main control device 30: Subscriber line 32: Transmission/reception circuit network 33: Handset/receiver 34: Bell 35: Calling party number receiving circuit 36 2 micro Computer 38: Display 39: Printer 40: RAM 41: Keyboard 42: Relay drive circuit 43: Relay contact for automatic call rejection 44: Hook switch 45 Niccup spring capacitor Patent applicant Tateishi Electric Co., Ltd.

Claims (1)

[Claims] (1) If the calling party number is sent to the called party prior to the paging signal, and the called party's telephone goes off-hook within a certain period of time after transmitting the calling party M number, the called party means for receiving the calling party number in a J:N jamming machine used in the switching system, which stops transmitting a ringing signal to the calling party, and transmits a busy tone to the calling party; means for displaying the received calling number; a storage means capable of presetting and registering any telephone subscriber number; and the calling number received by the receiving means and the registration number of the storage means. and a verification means that determines whether to accept or reject the call by verifying the same, and when the verification means determines that the incoming call is rejected, outputs the same response as off-hook within the above-mentioned fixed time to the exchange equipment. 1. A telephone set for use in a switching system with a calling party number notification function, characterized in that the telephone set has means for use in a switching system with a calling party number notification function.