JPS62114367A - Discriminating system for impossibility of terminal communication - Google Patents

Abstract

PURPOSE:To reduce an unnecessary charge on an outgoing party, and to improve a service by discriminating a response impossibility automaticaly with a customer additional device, and cutting off a communication circuit after informing a state to the outgoing party. CONSTITUTION:A customer additional device 3, when it receives a terminal selection signal, starts up a timer 22. The setting time of the timer 22 is set automatically by a CPU 24 according to whether a terminal is a telephone set 7 or a data terminal 8. And when a call to the terminal is started by the CPU 24 and no response from the terminal is recognized after the lapse of the setting time, the CPU 24 restores the timer 22, and interrupts the call to the terminal, and after it restored a sending circuit 15 at an opposite side and terminates a call tone, the CPU starts up a sending circuit 16, and informs that the terminal is in a response impossibility state to the opposite by a guidance. Afterwards, the CPU 24 restores the sending circuit 16, and restores a loop circuit 13 and cuts off a circuit.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a method for determining terminal communication failure, and more specifically, it determines whether a terminal on the third side is unresponsive, and Jl! The present invention relates to a method for reducing unnecessary charges for charging by notifying the receiving side.

[Summary of the invention]

The present invention installs an additional device in the user's home.

In the terminal-type selective call termination method of telephone exchange networks that connect multiple communication terminals to one subscriber line, in order to reduce unnecessary charges to the calling party in the case of no-show, the timer and its timer length are switched to an additional device in the premises. A means (for example, a switch) is installed so that when a call arrives, if there is no response from the extension communication terminal within the set timer time, 5 the calling party is notified to that effect and the communication line is disconnected. This reduces unnecessary charges.

[Conventional technology]

Conventionally, when an additional device is installed in the user's home, when a call arrives at the additional device, the additional device first responds tentatively, and then a predetermined signal is sent from the first outgoing screen to initiate extension communication. There is a terminal type selective call reception method in which a terminal is connected and the extension communication terminal is activated. An example of such a method is to set a PIN number on the additional device,
When a call is received, there is a PIN telephone device that makes a call only when a PIN is sent from the calling party after a provisional answer is made by an additional device.

In this additional device, the password can be reset, for example, by a switch or by switching to the seller 1, and after the reset, the additional device will no longer respond to calls. Therefore, before a user is away, he/she must reset the PIN number of the additional device before going out, but if the user forgets to reset it and goes out, one person may be unable to respond. Despite this, there was a problem in that the caller continued to call A21 until the caller hung up the handset, leaving the caller unable to communicate and being forced to pay unnecessary charges. This problem is for phone PIN 1
This is an important problem not only for single-talk devices, but also for terminal-type selective termination using provisional responses of additional devices in telephone exchange networks.

[Problem that the invention seeks to solve]

In this way, if the user forgets to reset an additional device in the user's premises that performs terminal type selective incoming calls and leaves the house, the additional device temporarily responds to the incoming call and continues calling the extension, which is unnecessary for the calling party. There is a problem that excessive charges may be incurred.

Book J! The purpose of this research is to improve such conventional problems and to
Regardless of whether it is a fi phone terminal or a data terminal.

By determining whether the terminal is unable to respond when receiving an incoming call,
An object of the present invention is to provide a method for determining terminal unresponsiveness that can reduce unnecessary charges to the calling side.

[Means for solving problems]

In order to achieve the above object, the terminal unresponsiveness determination method of the present invention installs an additional device housed in a telephone exchange network and equipped with a subscriber line connection terminal and a plurality of extension communication terminal connection terminals, and When a call is received, after the additional device makes a provisional response, the extension communication terminal is activated according to the extension communication terminal selection number from the caller, and the terminal type selection (i-method) wherein the additional device is provided with a timer and means for switching the time of the timer, and starts the extension communication terminal, and the additional device starts the timer at the time set by the time switching means,
The present invention is characterized in that when there is no response from the extension communication terminal within the set time, the communication line is disconnected after notifying the caller that there is no response.

[For production]

In the present invention, in an additional device in a user's premises that performs terminal type selective incoming calls, a timer is set according to the type of extension communication terminal when the extension communication terminal starts calling, and when this timer times out, the extension communication terminal is When there is no response, # within! Unnecessary charges can be reduced by determining that the terminal is unable to respond for some reason, notifying the caller that communication is impossible, and then disconnecting the line. The present invention differs from conventional methods.

The non-responsiveness of the extension communication terminal is not determined by the calling party 3, but by the additional device in the user's premises on the receiving party. Also,
The conditions for determining unresponsiveness according to the present invention are variable depending on the type of the calling terminal, and a new technical idea is that the line is disconnected from the terminating (3) side after notifying the calling party that it is unresponsive. .

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration diagram of an additional device in a user's premises showing an embodiment of the present invention. In Figure 1, 1 is subscriber line exchange @
(hereinafter referred to as LS), 2 is a subscriber line, 3 is an additional device in the user's premises (hereinafter referred to as ADP), 7 is an LIi phone, 8
is the data terminal, and 9 is the other party's terminal. Here, the telephone 7 and the data terminal 8 are extension terminals of the user premises equipment. ADP3 is a polarity reversal detection circuit 10. DT and BT
Detection circuit 11. Terminal selection signal receiving circuit 12. Loop closing circuit 13. Dial signal sending circuit 14. Ringing tone sending circuit 15. Guidance sending circuit 16. Modulation/demodulation circuit 17. Signal route switching circuit 18. Telephone call/response detection circuit 19. Calling signal sending circuit 20. Relay A21. Timer 22. It is composed of a timer length changeover switch 23 and a processor (CPU) 24.

Note that 1! is connected to the ADP 3 via the two-wire communication terminal connection terminal 5 and the multi-wire communication terminal connection terminal 6. A handset 7 and a data terminal 8 are connected to each other.

First, when there is an incoming call from the other party to this ADP3.

A ring tone is sent from the LSI to the other party, and a ring signal is sent to the subscriber line 2.

The polarity of subscriber line 2 is reversed (one of the two lines [,1=-4
8V, and the other L2 = Tenchi Ki).

ADP3 polarity reversal detection port 'if! When the ADP 110 detects this polarity reversal, the CPU 24 operates the loop opening circuit 13, so that the ADP 3 tentatively responds to the incoming call. Note that, in addition to detecting polarity reversal, there is a method for detecting an incoming call by detecting a ringing signal, and of course, this method may also be used.

After ADP 3 tentatively responds, a signal to select telephone 7 or data terminal 8 is sent from the other party.

By receiving this signal in the terminal selection signal receiving circuit 12, the corresponding terminal (ffill 7 or data terminal 8
). Calling of the terminal is performed for the telephone 7 by driving the calling signal sending circuit 20, and for the data terminal 8 via the signal route switching circuit 18 from the Cr'U 24.

This is done by sending a call signal composed of a character code to one of the signal lines of the multi-wire communication terminal connection terminal 6, or by changing the voltage level of the signal line assigned for displaying an incoming call. At the same time, start the ringing tone sending circuit 15,
Sends a ring tone to the other party. How to detect a response from a terminal when the terminal is telephone 7? ! ! The telephone call/response detection circuit 1 detects a DC loop, and in the case of a data terminal 8, it also detects signals 5 and 5 of the multi-wire communication terminal connection terminal 6 allocated for receiving data from the terminal side. The signal route switching circuit I8 determines whether a response signal consisting of a character code is sent back from CPti2 or whether the voltage level of the signal line assigned to the response front thread changes.
4 detects. After detecting the response, the CPU 24 determines that the end of DH:5 is fI! In the case of handset 7, the ringing signal sending circuit 20 and ringing tone sending circuit 15 are restored.

Stop incoming calls and calls, and set relay A21 to 8.
! I! JI to move the contact a downward or upward, and connect the 2-wire communication terminal connection terminal 5 and the subscriber vA connection terminal 4.

enable calls. In addition, if the terminal is a data terminal 8, the ring tone sending circuit I5 is restored to stop the emitting sound, and the signal route disconnection (2) circuit 18 is operated, and the multi-wire communication Z1 connection end 7 is activated. All signal lines used for communication with the other party are connected to the modulation/demodulation circuit I7 using the signal line -6, and communication with the trolley side is enabled (set to 1 pin).

The above is the call receiving procedure of the known terminal type selective call receiving method. In this embodiment, when the ADP 3 receives the terminal selection signal and calls the corresponding terminal, it simultaneously starts the timer 22 for determining whether the terminal is unable to respond. The length between settings 11S of the timer 22 differs depending on whether the calling terminal is the telephone 7 or the data terminal 8, and the length depends on the CP
tJ 24 switches automatically. Furthermore, if the terminal to be called BH is the data terminal 8, the data terminal 8 may be in a state of returning readiness after detecting the call from the ADP3, or other operations such as offline use, etc. and after detecting a call from ADP3,
The timer length is changed depending on the case where a running program is stopped and a communication program is restarted to return a response. In this case, the user manually switches the timer length using the timer length changeover switch 23, and the CPU 24
is the timer length selector switch 23 when calling the data terminal.
Check the status and set the timer length accordingly.

After the terminal call is opened ρI'j, if there is a response from the terminal within the set timer length, the CPU 24 restores the timer 22 and then resumes communication using the procedure of the terminal type selective incoming call method described above. Perform processing to transition to the state.

After the terminal call starts, the timer 22 or CPU 24 is notified of the elapsed time of the set timer length.

If there is no response from the terminal, CP tJ 24 restores the timer 22, then stops calling the terminal, and returns the ringing tone sending circuit I5 to the other party's terminal I11 to stop the ringing. Thereafter, the guidance sending circuit 16 is activated, and the other party is notified by guidance that the terminal is unable to respond. Guidance is.

If the other party is a human being, the person on the other end can confirm the data directly via the talkie, and the data terminal is transmitting via an in-home device equivalent to A Dr' 3. In this case, the PB double signal home equipment relays the multi-line signal (changes to the signal format on the terminal connection terminal a, and the data terminal confirms it. After the guidance transmission is completed, the CPU 24 16 is restored, the loop opening circuit 13 is restored, and the line is disconnected.

In response to this, the LSI restores the line on the ADP 3 side and sends a BT (business 1--) to the other party 9.

When the other party 9 disconnects the line, the other party 9's line is also restored. The series of control operations described above are performed by controlling the CPU 24 by software.

This can be easily achieved.

It is also possible to automatically switch the connection to a recording device such as a cassette tape after determining that the caller is unable to respond using the above procedure, so that the caller's message will be muted.

〔Effect of the invention〕

As explained above, according to the present invention, in the terminal type selective call reception method, when a call cannot be received due to absence, offline use, etc., an additional device installed in the user's home is activated. Regardless of whether it is a phone terminal or a data terminal.

Since it automatically determines whether a response is unavailable, notifies the calling party of this fact, and then disconnects the communication line, it is possible to reduce unnecessary charges to the calling party and improve the service for both users. can.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an in-home additional device showing an embodiment of the present invention. l: Subscriber switch (LS), 2: Subscriber line, 3: Additional equipment in the premises (ADI'), 4: Subscriber line connection terminal, 5: 2-wire communication terminal connection terminal, 6: /Multi-wire communication terminal connection Terminal, 7:
Electric machine, 8: Data terminal, 9: Sending side, 10: Polar pressure
11: DT and BT detection circuit; 12: terminal selection signal receiving circuit; ]3: Lube opening circuit, III: dial signal sending circuit, 15: ringing tone sending circuit, 16: guidance sending out path,
17: Modulation/demodulation circuit, 18 Two-signal route switching circuit, 19: Telephone @ call/response detection circuit, 20; Ringing tone sending circuit, 2I
: Relay A, 22: Timer, 23: Timer length selector switch, 24: Cr'U. ＼－゛：・

Claims (3)

[Claims] (1) An additional device that is accommodated in a telephone switching network and equipped with a subscriber line connection terminal and multiple extension communication terminal connection terminals is installed, and when a call arrives at the additional device, after the additional device tentatively answers. , in a terminal type selective incoming call method in which the extension communication terminal is activated by an extension communication terminal selection number from the calling side and communication is performed in response to a response from the extension communication terminal, the additional device is provided with a timer and means for switching the time of the timer. and activates the extension communication terminal, the additional device activates the timer at the time set by the time switching means, and when there is no response from the extension communication terminal within the set time, responds to the calling party. A method for determining whether a terminal is unable to communicate is characterized by disconnecting the communication line after notifying the user that there is no communication. (2) The setting time of the above timer varies depending on the telephone terminal and the data terminal among the extension communication terminals, and also when the data terminal is in a state where it can send an immediate response after detecting an incoming call, and when it is offline. Terminal communication failure according to claim 1, characterized in that the terminal is in other operation such as using the incoming call, and after detecting an incoming call, the time length changes depending on whether the communication program is started again and then a response is sent back. Discrimination method. (3) The above-mentioned notification that there is no response to the calling party is made by using a voice call and a voice band code/tone signal, so that it can be confirmed whether the calling party is a human or a machine. A method for determining whether a terminal is unable to communicate, as set forth in claim 1.