JPH0422246A - line terminal equipment - Google Patents

Abstract

PURPOSE:To update the data to select a line offering a minimum talking charge at all times by devising an area map memory in which utility charge of the NTT line and each of the NCC lines is stored to be rewritten by means of data communication utilizing a telephone line. CONSTITUTION:A polarity detection section 29 and a data transmission reception section 24 are added to a conventional line terminal equipment 2. When a talking charge of the NCC and the NTT is revised to need data revision of an area map memory 25, a center (not shown) sends 1st, 2nd selection signals to the terminal equipment 2 for no ringing communication, then an exchange (not shown) inverts the polarity of a telephone line 1 and the polarity detection section 29 detects it. Then a central control section 27 controls the terminal equipment to be in a state possible for data communication. When a signal enters the data transmission reception section 24 in this state, the signal is converted into a digital signal and only a part of the memory 25 requiring the revision due to the revision of the line talking charge is rewritten and then the communication is terminated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a line terminal device to which a communication terminal device such as a telephone or a facsimile machine is connected, and the line terminal device performs voice calls or data communications at the lowest call charges.

BACKGROUND OF THE INVENTION In recent years, telephone communication services have been launched by Type 1 telecommunications carriers under the Telecommunications Business Act, so-called multiple power cutoff 1it (hereinafter abbreviated as NCC) companies, and users can request NCC.
It is now possible to use CC's line, but there are differences in usage fees depending on each company's line. Therefore, when the user performs the same dialing operation as before, the line with the lowest charge is automatically selected, and when the selected line is an NCC line, the NCC line is automatically selected.
A function that adds an identification code indicating that a line has been selected to the dial signal and sends it to the telephone line (hereinafter referred to as LCR function)
Line terminal devices equipped with

Conventional line terminal equipment of this type generally had a configuration as shown in FIG. The configuration will be explained below with reference to FIG.

As shown in the figure, the line terminal device 2 is connected to the telephone line 1 and the telephone tli3, and includes a line opening/closing section 21 that opens and closes the connection with the telephone line 1 and the telephone 3, and an off-hook detection section that detects off-hook of the telephone 113. 22 and telephone line 1
and a selection signal decoding section 23 that decodes the selection signal from the telephone 3; a selection signal memory section 26 that stores the selection signal decoded by the selection signal decoding section 23; and a selection signal memory section 26 that stores line usage charges for the NTT line and each NCC line. Read out the data in the area map memory section 25 and the selection signal memory section 26, compare it with the data in the area map memory section 25, select the line with the lowest charge, and if the line with the lowest charge is an NCC line, select the NCC line. The central control section 27 adds an identification signal to indicate selection and sends the selection signal to a selection signal sending section 28.

The operation of the above configuration will be explained with reference to FIG. When the telephone 3 performs an off-hook operation to make a call, the off-hook detection section 22 in the line terminal device 2 detects that the telephone 3 is off-hook, and the central control section 27 detects that the telephone 3 is off-hook.
A predetermined output signal is sent to. Upon receiving the predetermined signal from the off-hook detection section 22, the central control section 27 opens the line opening/closing section 21 to prevent the selection signal of the telephone I13 from being sent to the telephone line 1 and clear the data in the selection signal memory section. . After the data in the selection signal memory section 26 is cleared, the selection signal sent from the telephone 3 is decoded by the selection signal decoding section 23, output, and newly stored in the selection signal memory section 26. The central control section 27 compares the data in the selection signal memory section 27 with the data in the area map memory section 25, selects the line with the lowest call charge, and sends a predetermined selection signal to the selection signal sending section 28. control. In other words, when the line with the lowest call charge is an NTT line, the central control unit 27 controls the selection signal sending unit 2 to send out the same selection signal as in the selection signal memory unit 26. If it is an NCC line, the selection signal sending section 28 is controlled to send out the selection signal stored in the selection signal memory section 26 after sending out the identification code for selecting the NCC line.

Problems to be Solved by the Invention In such a line terminal device with LCR@ function, since the data in the area map memory section 25 is fixed, the NT
When T or NCC revised line charges, it was necessary to go to the location where the line terminal equipment was installed and rewrite the data. Therefore, between the time the telephone charges are revised and the data in the area map memory section is changed, the data may not be updated to the latest data and the LCR function may not operate correctly, resulting in higher call charges than the minimum call charge. I had to use the line.

The present invention solves the problem of L memory: JR, and makes it possible to rewrite the data in the area map memory section through communication using a telephone line, thereby speeding up data rewriting and making it possible to always make calls at the lowest call charges. The purpose is to

Means for Solving the Problems In order to solve the above problems, the line terminal device of the present invention includes: a line opening/closing section that controls opening and closing of the connection between the telephone and the telephone line; an off-hook detection section that detects off-hook of the telephone;
A selection signal decoding section that decodes and sends out the selection signal from the telephone and the telephone line; a selection signal memory section that stores the data of the selection signal sent from the selection signal decoding section; An area map memory unit that stores charges, a selection signal sending unit that sends a selection signal to the telephone line, a polarity detection unit that detects the polarity of the telephone line, a data transmitting and receiving unit that transmits and receives signals from the telephone line, and an off-hook unit. When off-hook is detected in the detection section, the line opening/closing section is opened, the selection signal sent from the telephone is read out from the selection signal memory section, and compared with the data in the Yuriamanobu memory section, the line with the lowest call charge is selected. After controlling the selection signal sending unit to send out the selection signal, the line opening/closing unit is closed, and if the polarity detection unit and the selection signal decoding unit detect a no-ringing call, the selection signal is transmitted via the data transmission/reception unit. and a central control section that can control the rewriting of data in the area map memory section.

Effects of the present invention With the above-described configuration, the line terminal device itself can communicate using the telephone line, and furthermore, the data in the area map memory can be rewritten, so the latest telephone line charges can be stored in the area map memory, and the latest telephone line charges can be always It becomes possible to correctly and automatically select the telephone line with the lowest call charge.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG. F and FIG. 2. As shown in Figure 1, the line terminal bag W
2 is a line opening/closing unit 21 that is connected to the telephone line 1 and the telephone 3 and opens and closes the connection between the telephone line 1 and the telephone 1fI3; and an off-hook detection unit 22 that detects off-hook of the telephone 3;
A selection signal decoding section 23 that decodes and outputs selection signals from the telephone line 1 and the telephone 3; a selection signal memory section 26 that stores the signals from the selection signal decoding section 23; An area map memory section 25 that stores charges, a selection signal sending section 28 that sends a selection signal to the telephone line 1, a polarity detecting section 29 that detects the polarity of the telephone line 1, etc. transmit and receive data signals from the telephone line 1. The data transmitting/receiving section 24 compares the data in the selection signal memory section 26 with the data in the area map memory section 25 to select the line with the lowest charge and send out the selection signal. It comprises a central control section 27 which can rewrite data in the area map memory section 25 via the data transmitting/receiving section 24 when an incoming call from the telephone line 1 to the line terminal device 2 is detected.

In the configuration described above, the operation of the line terminal bag W2 when the telephone performs a calling operation is the same as that of the conventional example, and will therefore be omitted.

Hereinafter, a sequence for changing the area map memory using no-ringing communication when call charges are changed in NTT and NCC will be explained with reference to FIGS. 1 and 2. What is Noringing Communication Service?N
A type of service provided by TT, which has traditionally been equipped with a line terminal device on a home telephone and is characterized by the ability to use the telephone's free time to receive calls and communicate without the telephone ringing. It is.

In FIG. 2, the NCC and NTT call charges are changed and the center's line terminal device (not shown) performs no-ringing communication with the line terminal bag W2 in order to rewrite the data in the area map memory section. and the second selected board number, the exchange (not shown) inverts the polarity of the telephone line 1.

When the polarity detection section 29 detects polarity reversal, the central control section 2
A predetermined signal is output to 7. When the central control section 27 receives this predetermined signal, it clears the data in the selection signal decoding section 23 in order to be able to monitor the next NR3 calling signal sent from the exchange, and reads the button signal sent from the telephone line 1. Transition to the waiting state for the NR8 call signal using . When the NR3 signal arrives, the signal is decoded by the selection signal decoding section 23, which is the same circuit block used when decoding the selection signal of the telephone 3, and stored in the selection signal memory section 26. The central control unit 27 reads out the data in the selection signal memory unit 26 and if it matches the pre-registered call signal,
The central control section 27 controls the selection signal sending section 28 to send out an ANS response signal which is "°#" of the button signal. This ANS response signal enables data communication. When a signal is input to the data transmitting/receiving unit 24 in a communicable state, the analog signal is converted to a digital signal, and memory is rewritten only at the area map memory where data has been changed due to a change in line call charges, and communication is terminated. .

In this way, the line terminal device of the present invention! According to No. 2, the line terminal device 2
Since it becomes possible to communicate with the user and the data in the area map memory section 25 can be rewritten, the latest data can always be stored in the area map memory, and calls can be made at the lowest call charges at all times. Also, since no-ringing communication service is used for communication, it is possible to receive calls without ringing the telephone bell even when changing data in the area map memory.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the line terminal device itself can communicate, and the data in the area map memory section can be rewritten using the telephone line, so the line with the lowest call charge is always available. You can update the data necessary to select. Furthermore, since the line terminal device uses a no-ringing communication service, it is possible to receive a call without ringing the telephone bell. In other words, even if the telephone line call charges are revised, the data in the line terminal device can be quickly rewritten without ringing the telephone bell, so the telephone user can always make calls at the lowest call charge.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a line terminal device according to an embodiment of the present invention, FIG. 2 is a diagram showing a communication sequence of a no-ringing communication service of the same device, and Part 3 is a block diagram of a conventional line terminal device. 2...Line terminal device, 21...Line opening/closing unit, 22...Off-hook detection unit, 23...
... Selection signal decoding section, 24 ... Data transmitting and receiving section, 25 ... Areama knob memory section, 26.
... Selection signal memory section, 27 ... Central control section, 28 ... Selection signal sending section, 29 ...
...Polarity detection section. Name of agent: Patent attorney Shigetaka Awano Figure 1

Claims (1)

[Claims] a line opening/closing unit that is connected to a telephone line and a telephone set and controls opening/closing of a connection between the telephone set and the telephone line; an off-hook detection unit that detects off-hook of the telephone set; and a deciphering selection signal from the telephone set and the telephone line. a selection signal decoding section for outputting a selection signal; a selection signal memory section for storing data of the selection signal sent from the selection signal decoding section;
an area map memory unit that stores call charges for each of the TT line and the NCC line; a selection signal sending unit that sends a selection signal to the telephone line; a polarity detection unit that detects the polarity of the telephone line; and a data transmitting/receiving section for transmitting and receiving signals from the telephone, and when off-hook is detected in the off-hook detection section, the line opening/closing section is opened, and a selection signal sent from the telephone is read out from the selection signal memory section. After controlling the selection signal sending unit to select the line with the lowest call charge by comparing it with the data in the area map memory unit and sending out the selection signal, the line opening/closing unit is closed, and the polarity detection unit and a central control section capable of controlling rewriting of data in the area map memory section via the data transmission/reception section when the selection signal decoding section detects a no-ringing call.