JPS62146055A - Terminal controller - Google Patents

Abstract

PURPOSE:To preferentially receive a telephone set when the presence mode is set, by driving a timing device with a controller which monitors hook-off of the telephone and a call signal of a public telephone line and driving a DC line closing device with the output of the timing device. CONSTITUTION:A controller 9 monitors the use state of the telephone outputted from a telephone use detector 8 and the presence or the absence of a call signal on a public telephone line 2 outputted from a call detector 3. When information indicating the occurrence of a call signal is inputted to the controller 9 from the call detector 3, a timing device 10 is driven. When information indicating off-hook of the telephone is inputted from the telephone use detector 8 to the controller 9, the timing device 10 is stopped. If stop information from the controller 9 is not inputted within a time set individually in the automatic answering mode and the presence mode after the timing device 10 is driven, the timing device 10 drives a DC circuit closing device 5 to close the DC loop of the public telephone line 2, and automatic terminating is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a terminal control device for automatically receiving calls on public telephone lines.

2. Description of the Related Art The configuration of an example of a conventional terminal control device is shown in FIG. The terminal control device 1 is a conventional terminal control device, and a call detection device 3 is connected to a public telephone line 2, and the call detection device 3 is driven by the output of an absentee mode switching device 4. Further, when the call detection device 3 detects a call signal while the call detection device 3 is driving, the call detection device 3
drives the DC circuit closing device 6. The DC circuit closing device 6 automatically receives a call by closing the DC loop of the public telephone line 2. After automatically receiving the call, the public telephone line 2 is connected to the terminal device 7.

When the home switching device 4 is in the home mode, the call detection device 3
is not activated, and when a calling signal is sent to the public telephone line 2, the public telephone line 2 is not activated unless the telephone 6 goes off-hook.
The DC loop is not closed and no incoming calls are received.

Problems to be Solved by the Invention In a terminal control device having such a configuration, when in the away mode,
If automatic incoming calls are immediately given priority and the telephone is an answering machine, the problem arises that the answering machine is not used effectively. In addition, in the at-home mode, there is a problem that calls cannot be received unless the telephone goes off-hook.

Means for Solving the Problems The technical means of the present invention for solving the above problems is to connect a telephone usage detection device for detecting off-hook of the telephone to a public telephone line, and to detect the off-hook of the telephone and the connection of the public telephone line. A control device that monitors the calling signal drives a timer, and the output of the timer, which has a set time determined according to the output of the home switching device, drives a DC line closing device to automatically receive calls. It is something to do.

Effect: According to the above technical means, if the telephone goes off-hook and does not receive a call within the time determined in each mode, regardless of whether the user is away from home or not, the DC circuit closing device is activated to automatically receive the call.

As a result, even if the telephone is an answering machine, there will be no collision of incoming calls, and if the telephone is in home mode and does not go off-hook, the call can be automatically received if the ringing signal continues for a certain period of time.

Embodiment FIG. 1 is a configuration diagram of an embodiment of the present invention. Components common to those in FIG. 2 are given the same numbers, and some explanations are omitted. A telephone usage detection device 8 that detects off-hook of the telephone 6 is connected to the public telephone line 2, and a control device 9 detects the telephone usage status outputted from the telephone usage detection device 8 and the public telephone line outputted from the ring detection device 3. The presence or absence of a ringing signal on 2 is monitored.

The timer 1o sets the time depending on the output of the absent home switching device 4, that is, whether the mode is the absent mode or the home mode. , drives the timer 10. Further, if the control device 9 receives information from the telephone usage detection device 8 that the telephone has gone off-hook, the timer 1o is stopped. After the timer 1o is activated, the control device 9
If the stop information from the public telephone line 2 is not input, the timer 1o drives the DC circuit closing device 6, closes the DC loop of the public telephone line 2, and automatically receives the call.

After the call is automatically received, the public telephone line 2 is connected to the terminal device 7.

For example, if the telephone 6 is an answering machine and is in the answering mode, the terminal control device 1 monitors the answering machine for a predetermined time even if it detects an incoming signal, and waits for a predetermined time, that is, If the answering machine does not answer even after the time normally required for the answering machine to respond, it is possible to avoid automatic incoming calls and collisions of responses.

In addition, in the case of the home mode, if the terminal control device 1 detects an incoming call signal, the terminal control device 1 will continue to operate the telephone 6 even after the time specified in the home mode, even if the time normally required for a human to respond has elapsed.
If there is no response, the call is automatically received and the public telephone line 2 can be connected to the terminal device 7.

Effects of the Invention As described above, in the present invention, the terminal control device monitors the response of the telephone connected to the public telephone line. It is possible to implement functions such as automatically receiving calls after a certain period of time has elapsed, and it is possible to receive calls with priority on the telephone when in home mode.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a terminal control device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional terminal control device. 1... terminal control device, 2... public telephone line, 3... call detection device, 4... absent home switching device, 6... ...DC circuit closing device, 6
...Telephone, terminal equipment, 8...
. . . Telephone use detection device, 9 . . . Control device, 10 . . . Time limit device.

Claims (1)

[Claims] a call detection device that detects a ringing signal of a public telephone line; a telephone usage detection device that detects when a telephone is off-hook; an absentee home switching device that inputs whether the home is away or home; a DC circuit closing device for DC-closing a public telephone line; and a DC circuit closing device connected to the call detection device and the telephone use detection device, and monitoring the continuous time of the ring signal and off-hook of the telephone. What is claimed is: 1. A terminal control device comprising: a control device for driving the DC circuit closing device based on the output of the timer.