JPH0884200A - Preventing method for erroneous connection at time of emergent automatic outgoing call - Google Patents

Abstract

PURPOSE: To prevent a message from not directly transmitted to a receiver even when line connection is established when the connection form of a called party is switched to an automatic answering telephone and a FAX, etc. CONSTITUTION: In an emergency calling telephone set for which an emergency calling button 14 for automatic emergent automatic outgoing call is connected to a telephone set body 1, an emergency calling number registration part is provided in a memory and a call is originated to a registration telephone set 16 on the emergency center side, a line control circuit 6 connected to a trunk line is provided with a BT detection circuit 7 for detecting busy tone signals, an automatic recording signal detection circuit 8 for detecting automatic recording signal tones for instructing the recording of the automatic answering telephone and a FAX and MODEM signal detection circuit 9 for detecting the connection signals of the FAX and a MODEM. Then, when a caller performs emergent automatic outgoing call and the called party is switched to the automatic answering telephone, after a call is terminated, recording start signals after the end of the message are detected from the called party, the automatic answering telephone set 17 is judged, a line is automatically disconnected and the call is automatically originated to the second and succeeding registered destinations until connection establishment becomes valid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing erroneous connection when an emergency automatic call is made. In the aging era of Japan, the spread of emergency call systems for the elderly at home is urgently increasing, and the emergency call center is called automatically with a simple button operation. The system is such that it will contact the institutions and co-workers and request appropriate measures.

In addition, services for emergency automatic communication equipment from security devices such as gas leak sensors and fire alarms have become widespread. Emergency call centers receive emergency calls and contact the fire department or police according to the received content. Security systems have also been developed, such as dispatching security guards.

[0003] In the case of these emergency automatic transmissions, if it is not possible to reliably connect to the other party's center device, it is expected that social problems will develop. For example, even if an elderly person at home operates a button to call the emergency notification center side, if the receiving side cannot respond for some reason, it may be too late, and various measures will be taken assuming such a case. ing.

[0004]

2. Description of the Related Art A block diagram of a conventional emergency call telephone is shown in FIG. In the figure, 21 is a telephone body, 22 is a handset, 23 is a speaker, 24 is a microphone, 25 is a communication circuit,
26 is a line control circuit, 27 is a BT detection circuit, 28 is a microprocessor, 29 is a memory, 30 is a key matrix, 31 is an indicator, 32 is an emergency call button, 33 is a central office switch, and 34 is a center side telephone.

When the emergency caller lifts the handset 22 and presses the emergency call button 32, the telephone number registered in advance in the emergency call number registration section of the memory 29 is stored in the microprocessor 28.
A call is made under the control of, and the line control circuit 26 connects to the central office exchange 33 via the central line and calls the center side telephone 34.

If the center side telephone 34 is busy, the BT
The detection circuit 27 detects a busy tone and, under the control of the microprocessor 28, selects the next emergency telephone number registered in the emergency call number registration section of the memory 29 to automatically make a call. If the registration numbers are all busy, you can lower the handset 22 and then raise the handset 22 again to switch to manual dialing.

FIG. 5 is a flow chart showing an example of a conventional automatic emergency call. In the figure, (1) 'the user's off-hook state is detected from the telephone state being on-hook or the speaker listening state. (2) 'Emergency automatic call starts by the user's emergency button operation. (3) 'Search the received signal from the central office side for ring back tone or busy tone. (4) 'Detects if the received signal is a busy tone signal (400Hz), and (5)' If it does not detect a busy tone signal (400Hz), the center side telephone lifts the handset to eliminate the ringback tone, and the call is terminated. Start. (6) 'When the call ends, the emergency call is cut off by going on hook. (7) If a busy tone signal (400Hz) is detected, it is checked if there is a registration number for re-signaling, and if there is a registration number, the emergency automatic transmission of (2) starts. (8) 'If there is no re-signaling registration number, the busy tone will remain audible, so go on-hook once, then go off-hook again, (9)' listen to the dial tone from the central office, and then (10) ' It is possible to manually make a call by manually making a call to a partner who is not registered (for example, an acquaintance's house).

[0008]

In the prior art, when a busy tone (BT) is detected in the signal detection at the time of connecting a station line, the line is automatically abandoned, and after several seconds, the transmission is tried again.
Or, if automatic transmission registration is performed, the transmissions are sequentially made in the order of registration. In this case, when connection of the central office line is completed and there is inconvenience, it is necessary for the sender or the receiver to abandon the line.

For example, when connecting to an answering machine or a fax machine / modem / modem setting personal computer, etc., despite the fact that it is an emergency call, it is not possible to automatically connect to the other party's telephone and to achieve an emergency requirement. I can't.
In particular, if the other party's connection mode has been switched to answering machine / FAX when making a call such as emergency automatic call,
Even if the station line connection is established, the problem cannot be directly transmitted to the recipient.

In the present invention, after the line connection of the other party is established in the emergency automatic call, the connection form of communication is judged from the signal information sent from the called side, and if the connection form does not match, it is automatically disconnected immediately, or The purpose is to automatically call other registered destinations in sequence.

[0011]

FIG. 1 shows the principle configuration of an emergency call telephone according to the present invention. In the figure, 1 is a telephone body, 2 is a handset, 3 is a speaker, 4 is a microphone, 5
Is a call circuit, 6 is a line control circuit, 7 is a BT detection circuit, 8
Is an answering machine signal detection circuit, 9 is a FAX and modem signal detection circuit, 10 is a microprocessor, 11 is a memory, 12 is a key matrix, 13 is an indicator, 14 is an emergency call button, 15 is a central office switch, 16 is a center side A telephone, 17 is an answering machine on the center side, and 18 is a FAX on the center side.

When the emergency caller raises the handset 2 and presses the emergency call button 14, the telephone number registered in advance in the emergency call number registration section of the memory 11 is called by the control of the microprocessor 10, and the line control circuit 6 It connects to the central office exchange 15 via a twisted line and calls the center side telephone set 16.

If the center side telephone 16 is busy, the BT
The detection circuit 7 detects a busy tone and, under the control of the microprocessor 10, selects the next emergency telephone number registered in the emergency call number registration section of the memory 11 to automatically make a call. If the registration numbers are all busy, the handset 2 can be lowered once, and the handset 2 can be raised again to switch to the manual dial.

In addition to the conventional BT detection circuit 7, an answering machine signal detection circuit 8 and a fax / modem signal detection circuit 9 are provided.
Center side telephone 16 is an answering machine due to the recipient's convenience
If it has been switched to 17, or if it has been switched to FAX 18, the center side telephone 16 is an answering machine.
If it is registered as 17 or FAX 18, it is automatically disconnected and automatically transmitted to another destination.

[0015]

[Operation] When the caller makes an emergency automatic call, when the other party (the called party) is switched to an answering machine, after the call is received, the other party sends a recording start signal of about 2 KHz after the message ends. When this recording start signal is detected, it is judged as an answering machine and the line is automatically disconnected, and automatic transmission is performed until the second transfer destination is established.

.. If the caller makes an emergency automatic call,
After the other party (callee) can confirm that it is an answering machine, message registration can be performed as it is, and the caller can display his or her own LCD.
An incoming call is displayed on the display screen on the answering machine, and it is possible to select whether or not to continue the automatic call thereafter.

[0017] If the caller makes an emergency automatic call,
When the other party (receiver) is a fax phone, the fax confirmation sound (reception sound of V standard) is sent from the other party after the incoming call is connected. Therefore, if the other party determines that it is a fax phone, the line is automatically disconnected. The second and subsequent connections are automatically transmitted until the connection is established.

[0018]

[Embodiment] Answering machine for emergency automatic transmission according to the present invention /
2 and 3 are flowcharts of a method of preventing connection to the FAX.
Shown in 2 shows a flow chart when the other party is connected to an answering machine or FAX and a modem device, and FIG. 3 shows a flow chart when the other party needs to select the answering machine. An embodiment of the flowcharts of FIGS. 2 and 3 will be described with reference to the principle configuration diagram of the emergency telephone of FIG.

When the other party in FIG. 2 is connected to an answering machine or FAX and a modem device, (1) the telephone state is on-hook or the user's off-hook state is detected from the speaker receiving state. (2) The emergency automatic call starts when the user operates the emergency button. (3) Connect to the other side and search for the received signal from the central office side, (4) Detect whether the received signal is a busy tone signal (400Hz), and (5) If the busy tone signal (400Hz) is not detected. , Check the presence / absence of the voice signal (2KHz) for confirmation of the monitor sound from the center side telephone (○○. Please use the message after the confirmation signal for use.), And check (6) Voice recording. If the signal (2KHz) is not detected, check if the FAX signal and the modem signal (V standard peehyoro, humming sound) are detected. (7) If the fax signal and modem signal are not detected, the center side It is confirmed that the phone is connected and the call is started. (8) Terminate the call on hook. (9) When the busy tone signal of (4) above is detected,
When the absence signal of (5) is detected, and the fax of (6)
When a signal and a modem signal are detected, it is checked whether or not there is a re-transmission registration number, and if there is a re-transmission registration number, the emergency automatic transmission of (2) is started. (10) If there is no redialing registration number, the busy signal, the answering machine signal, the fax signal, and the modem signal are still being sent out. Is heard from the central office side, and (12) the user can manually make a call to another number and call the subscriber.

Next, when the destination of the other party in FIG. 3 needs to be selected by the answering machine, (21) the telephone state is on-hook or the user's off-hook state is detected from the speaker receiving state. (22) Automatic emergency call starts when the user operates the emergency button. (23) Connect to the other side and search for the received signal from the central office side, (24) Check if the received signal is a busy tone signal (400Hz), and (25) If the busy tone signal (400Hz) is not detected. , Check the presence of a monitor message (2KHz) for confirmation of the monitor sound from the center side telephone (○○. Please use the message after the confirmation signal for use.), (26) Answering machine If the signal (2KHz) is not detected, check the presence or absence of the FAX signal and the modem signal (V standard beeping sound, beeping sound). (27) If the FAX signal and the modem signal are not detected, the center side It is confirmed that the phone is connected and the call is started. (28) Terminate the call on hook. (29) When the busy tone signal of (24) above is detected, it is checked whether or not there is a redialing registration number, and if there is a redialing registration number, emergency automatic dialing (22) is started. (30) If there is no redialing registration number, the busy signal is still being sent out, so the temporary on-hook and off-hook of the user causes (31) the dial tone to be heard from the central office side again, and (32) the user Manual call allows you to manually call another number and talk to the subscriber. (33) If the answering machine signal (2 KHz) is detected in the answering machine signal detection of (25) above, the LCD of the emergency automatic call telephone
When the user selects the condition for recording or redialing by the display, when redialing, it is checked whether or not there is a redialing registration number in (29). (34) When recording by user selection, the user goes on hook after inputting a recording message. If the FAX signal and the modem signal are detected by checking the presence or absence of the FAX signal and the modem signal in the above (26), it is checked whether or not there is the redial registration number in the above (29).

When the emergency automatic call starts, the LCD display of the emergency automatic calling telephone displays the called telephone number of the called party, and when the called party receives a ring back tone, the number display disappears. Further, if the other party responds, the call time can be displayed.

[0022]

[Effects of the Invention] In an emergency call or the like, the caller can reliably receive an incoming call to the registered destination, so that the current problem is that the incoming call is made to the answering machine due to the absence of the destination (the called party). And registration mistakes, or the registration destination FA phone number
If it is changed to X, or if it is possible to detect under each condition such as erroneous connection to the modem line for personal computer communication, communication can be established quickly.

[Brief description of drawings]

FIG. 1 is a block diagram showing the principle of an emergency call telephone according to the present invention.

FIG. 2 is a flowchart (part 1) of the present invention at the time of emergency automatic transmission.

FIG. 3 is a flowchart (part 2) at the time of emergency automatic transmission according to the present invention.

FIG. 4 is a block configuration diagram of a conventional emergency call telephone.

FIG. 5: Flowchart of conventional automatic emergency call

[Explanation of symbols]

 1,21 Telephone body 2,22 Handset 3,23 Speaker 4,24 Microphone 5,25 Speech circuit 6,26 Line control circuit 7,27 BT detection circuit 8 Answering machine signal detection circuit 9 FAX and modem signal detection circuit 10,28 Microprocessor 11,29 Memory 12,30 Key matrix 13,31 Display 14,32 Emergency call button 15,33 Central office exchange 16,34 Center side telephone 17 Center side answering machine 18 Center side FAX

Claims (3)

[Claims] 1. An emergency call button for automatic emergency call is connected to the telephone body, and an emergency call number registration section is provided in the memory.
In the emergency call telephone that sends out to the registered telephone at the emergency center side, the BT detection circuit that detects a busy tone signal in the line control circuit that connects to the office line, and the answering machine that detects the recorded message that instructs the recording of the answering machine Signal detection circuit and FAX
Also, a fax and modem signal detection circuit that detects the connection signal with the modem is provided, and when the caller makes an emergency automatic call, when the other party is switching to answering machine, after receiving the message, after the message from the other party is completed. Detecting the recording start signal of the device, judging that it is an answering machine, automatically disconnecting the line, and making an automatic call to the second and subsequent registration destinations until the connection is established. Connection prevention method. 2. The above-mentioned emergency call telephone allows the other party to confirm that the answering machine is an answering machine, and then enables message registration as it is, and the caller's own LCD display screen displays that the answering machine has received a message. The method for preventing erroneous connection at the time of emergency automatic transmission according to claim 1, wherein it is possible to select whether or not to continue the transmission. 3. In the above emergency call telephone, if the destination is a FAX telephone, F is sent from the destination after connection is established.
The other party to whom the AX confirmation sound (reception sound of V standard) is sent is F
The erroneous connection prevention method at the time of emergency automatic transmission according to claim 1, wherein, when it is determined that the telephone is an AX telephone, the line is automatically disconnected and automatic transmission is performed until the second and subsequent connections are established.