JPH09149228A - Communication terminal equipment with call/incoming call selection function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive only a call from a specified opposite party by providing a call exchange table to which a communication terminal equipment which receives the call is previously registered and receiving the call by means of referring to the table. SOLUTION: A line control part 1 executing line connection and line switching and detecting a call signal and an originating telephone number, a signal processing part 2 which is constituted by CPU and the like and which connects telephone lines L to respective telephone sets with line connection parts T1-T5 and a storage part 3 having the call exchange table are provided. When the originating telephone number is detected, a line switch part 1b is opened. The signal processing part 2 refers to the call exchange table 3b and reads the number of a communication terminal equipment corresponding to the originating telephone number. The line connection parts T1-T5 against the telephone set are controlled and the telephone line L is connected to at least one of the plural telephone sets. Only one telephone set which is connected by the signal processing part 2 directly receives the call signal transmitted from a line wire and it can receive the call.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device with a call reception / selection function capable of effectively using a calling telephone number notification service provided by a telephone exchange.

[0002]

2. Description of the Related Art Recently, a communication terminal device such as a telephone set or a facsimile device having a call incoming selection function (dial-in function) tends to become popular. In such a communication terminal device, if a plurality of telephones are further connected to one connected telephone line and a calling number (dial-in number) is assigned to each telephone, it is possible to call from the outside. You can receive a call number and connect the telephone of this call number to the telephone line to receive a call.

[0003]

However, in the above-mentioned conventional communication terminal device with a call receiving / selecting function, since the communication terminal device such as a telephone set to be connected is determined by the calling number inputted by the DTMF signal or the like through the outside line. Even in the case of only accepting a call from a specific party, the line may be connected as specified by a mistaken operation of the caller, and a ringing tone may sound.

Further, when the calling telephone is the same every time at the calling party, the calling number assigned to the telephone must be input each time the calling operation is performed, which is troublesome. The present invention has been made in view of the above circumstances, and a specific calling telephone number that can be called can be registered for each of the communication terminal devices connected to one telephone line, and the calling number of the calling source can be registered. It is an object of the present invention to provide a communication terminal device with a call incoming selection function capable of omitting the input operation.

[0005]

According to the present invention as claimed in claim 1, which is proposed to achieve the above object, a calling telephone number detecting means for detecting a calling telephone number sent from a switching device before a calling signal is sent. And a call exchange table in which a communication terminal device for receiving a call is registered in advance with respect to the calling telephone number detected by the calling telephone number detecting means, and communication corresponding to the calling telephone number is made by referring to this calling exchange table. A switching control means is provided for making the terminal device call incoming.

In this communication terminal device, by the telephone number notification service, when a call is made from an outside line, the calling telephone number sent from the subscriber line exchange prior to the calling signal is detected and discriminated by the calling telephone number detecting means. Based on this determination result, the switching control unit refers to the call exchange table,
The communication terminal device corresponding to the calling telephone number is called and received. In other words, the line is connected to each communication terminal device only when calling from the calling telephone number registered in advance corresponding to each communication terminal device.

The call exchange table is a RAM or EEP.
It consists of ROM, flash memory, etc.
It is possible to rewritably register the calling telephone number and the number of the communication terminal device to be called by correlating them by key operation or the like while observing the screen display when executing the call incoming setting mode. FIG. 4 is a sequence diagram showing the basic operation of the telephone number notification service.

Symbols (a) to (i) in the figure are symbols assigned to respective operations, and the ID receiving terminal corresponds to the communication terminal device of the present invention. In the subscriber line exchange, if there is a call to a terminal for which a service contract has been made in advance,
The polarity of the subscriber line is reversed and an ID reception terminal activation signal is sent. When the terminal side becomes ready to receive the outgoing telephone number, the DC circuit in the terminal is closed to send a primary response signal.

In the exchange, when the primary response signal is judged from the DC resistance value, the calling telephone number which is a modem signal is transmitted to the terminal side, and thereafter, the reception completion signal by opening the DC circuit is received from the terminal side, Send a ringing signal. I
When receiving a ringing signal, the D receiving terminal sounds a ringing tone and prompts for an incoming call. However, since the calling party's telephone number can be confirmed by receiving the calling telephone number in advance and displaying it on the display, I made a call. You can take appropriate measures according to the other party. When the user responds to the ringing signal by picking up the handset or the like, the DC circuit is closed again and the secondary response signal is sent out. Then, the polarity is repolarized and the call becomes possible.

Note that the modem signal including the calling telephone number can also be notified of number information such as a dial-in number (when a dial-in contract is also made).
When the calling telephone number cannot be notified, the reason why the calling telephone number is not notified can be notified. By the way, the reasons for non-notification of the calling telephone number include calling from a public telephone, calling when non-notification is designated by an operation before inputting a telephone number, and calling from outside the service providing area.

According to the second aspect of the present invention, the communication terminal device for making an incoming call by the switching control means according to the first aspect is directly connected to the telephone line and receives a ringing tone when receiving a ringing signal from the exchange. Communication terminal device,
Alternatively, it is a communication terminal device that sounds a pseudo bell by a pseudo bell generation circuit. In the present invention according to claim 3, the calling telephone number detecting means according to claim 1 or 2 may receive the calling telephone number by the communication modem after detecting the activation signal, and thereafter disconnect the line. Characterize.

Here, a specific configuration according to the operation of the calling telephone number notification service described with reference to FIG. 4 is shown, and the communication terminal device of the present invention communicates with the exchange to receive this service. It is necessary to have a function of performing a connection operation or to connect an adapter having this function.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an example of the configuration of a communication terminal device with a call reception selection function according to the present invention. Although this figure shows the configuration of the facsimile apparatus F, the present invention is not limited to this, and may be other communication terminal apparatus such as a telephone.

To this facsimile device F, telephones TEL1 to TEL5 are connected as communication terminal devices to one connected telephone line L, and the corresponding line connection portions T1 to T5 are used. Connected to the telephone line L. It should be noted that the telephones TEL1 to TEL3 receive the call signal of 16 Hz sent from the exchange and sound a ringing tone, and the telephones TEL4 and TEL5 receive the pseudo bell signal from the facsimile apparatus F and ring.
This is the ringing tone.

In the figure, reference numeral 1 is AC-connected to a telephone line L to perform line connection and line switching with respect to the facsimile apparatus F, and a communication modem 1a is provided to execute a facsimile communication procedure and a call sent from an exchange. A line control unit (calling telephone number detecting means) for detecting a signal, a calling telephone number, etc., 2 is composed of a CPU or the like to control each unit, and the line connecting units T1 to T5 connect the telephone line L to each telephone TEL1. A signal processing section (switching control means) to be connected to the TEL 5, 3 is a ROM 3a and a storage section composed of a RAM 3b having a call exchange table, 4 is an operation section composed of a numeric keypad, a mode setting switch and the like,
5 is a display unit composed of a liquid crystal screen, 6 is a print output unit,
Reference numeral 7 is an image reading unit, 8 is a pseudo bell generating circuit for generating a pseudo bell, and 9a and 9b are respective telephones TEL4 and T.
An OH detection circuit for detecting an off-hook (OH) of EL5.

The line control unit 1 includes a line switching unit 1b (CML relay) in addition to the communication modem 1a, and a polarity reversal detection circuit 1c for detecting polarity reversal before receiving the calling telephone number, and a transformer 1d. , A call signal detection circuit 1e having a function of detecting a call signal from the telephone line L and a function of detecting an ID reception terminal activation signal,
The communication modem 1a includes a protocol signal generation circuit, a protocol signal detection circuit, a modulation / demodulation circuit that modulates and demodulates a modem signal of a calling telephone number and image data to be transmitted and received.

The operation of the facsimile apparatus F will be described below. The communication terminal device according to the present invention has a function of utilizing the calling telephone number notification service by the telephone exchange, and when the polarity inversion is detected by the polarity inversion detection circuit 1c according to the operation described with reference to FIG. The calling signal detection circuit 1e sent to the terminal detects the ID reception terminal activation signal, closes the line switching unit 1b, demodulates the modem signal of the calling telephone number with the communication modem 1a, and detects information such as the calling telephone number. To do.

When the calling telephone number is detected, the line switching unit 1
b, the signal processing unit 2 refers to the call exchange table 3b, reads out the numbers (or extension numbers) of the communication terminal devices (telephones TEL1 to TEL5) corresponding to the calling telephone numbers, and the telephones TEL1 to TEL1 The telephone line L is controlled by the telephone line T by controlling the line connection units T1 to T5 for the TEL5.
It operates to connect to at least one of EL1 to TEL5.

The telephones TEL1 to TEL3 are one telephone TEL1 to TEL3 connected by the signal processing unit 2.
Only the person can directly receive the ringing signal sent from the outside line, ring a ringing tone, and receive the call by picking up the hand hook. On the other hand, the telephones TEL4 and TEL5 ring when the facsimile apparatus F receives a calling signal and the pseudo bell generation circuit 8 generates a pseudo bell signal, and when the handset of the telephones TEL4 and TEL5 is picked up, the OH detection circuit 9a. Or 9b is TEL4, TEL5
Off-hook is detected, the signal processing unit 2 detects the line connection unit T4.
Alternatively, by switching T5, TEL4 or TEL5 can connect to the line and talk.

2 (a) and 2 (b) show an example of the structure of the call exchange table 3b. Call exchange table 3b
Is set in advance by the mode setting switch of the operation unit 4 to the call reception setting mode, and by operating the ten-key pad or the like, as shown in FIG. Terminal device TEL1
Register the TEL5 number so that it can be rewritten.

In FIG. 1A, for example, the telephone number is "0.
3-1234-5678 ", there is a call from the other party,
When the telephone is connected to the "TEL1" telephone and a telephone number other than the registered telephone number is called, the facsimile apparatus F is connected. Another configuration example is shown in FIG. 2B, and one communication terminal device TEL1 to TE
It is possible to call L5 from a plurality of sources, call a plurality of communication terminal devices TEL1 to TEL5 by one calling telephone number, and call communication terminal devices TEL1 to TEL5 to a calling telephone number other than a specific number. I have registered.

In the figure, in order to call the telephone of "TEL1", the call may be made from the communication terminal device of the telephone number "03-9876-5432" or "078-111-2222", and the telephone number "03". -9876-543
If you make a call from "2", in addition to "TEL1",
2 "and" TEL4 "(" 075-579-4680 "
Other than) telephone can be called.

Steps 100 to 117 in FIG. 3 are flowcharts showing an example of the basic operation of the facsimile apparatus F. After detecting the ID reception terminal activation signal, the communication telephone number is received by the communication modem 1a, the loop is once opened and the reception completion signal is transmitted. After that, when the call signal is received, the telephones TEL1 to TEL5 corresponding to the calling telephone number are searched from the call exchange table 3b and called. On the other hand, telephones TEL1 to TEL5
Responds, it closes the loop and allows the call to the originator.

However, when the telephones TEL1 to TEL5 corresponding to the calling telephone number received in the call exchange table 3b are not registered or the reason for not notifying the calling telephone number is received, the facsimile receiving operation is performed. (Steps 115-117). The operation at this time is not limited, and all the telephones TEL1 to TEL5 may be called, or a predetermined telephone TEL1 may be called.
~ TEL5 may be called.

Although the telephones TEL1 to TEL5 are connected to the facsimile apparatus F in this embodiment,
Various terminal devices such as an answering machine and a data modem can be connected instead of the telephone.

[0026]

As can be understood from the above description, according to the communication terminal device with a call reception / selection function according to claims 1 to 3 of the present invention, a call is made in order to effectively use the calling telephone number notification service. Since the communication terminal device to be called can be registered in advance in association with the calling telephone number, each other communication terminal device connected to the same one telephone line as this communication terminal device can only call from a specific partner. Can accept.

Further, even if the communication terminal device to be called is the same each time at the sender, it is not necessary to input the calling number corresponding to the communication terminal device to be called each time, unlike the conventional dial-in service. The operation can be simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a basic configuration of a communication terminal device (facsimile device) with a call reception / selection function according to the present invention.

2A and 2B are diagrams showing an example of the configuration of a call exchange table.

FIG. 3 is a flowchart showing an example of a basic operation of a communication terminal device (facsimile device) with a call reception / selection function according to the present invention.

FIG. 4 is a sequence diagram showing a basic operation of a calling telephone number notification service.

[Explanation of symbols]

F ... Communication terminal device (facsimile device) with a call reception / selection function according to the present invention 1 ... Line control unit (outgoing telephone number detection means) 1a ... Communication modem 1c ... Polarity inversion detection circuit 1e. ..Calling signal detection circuit 2 ... Signal processing unit (switch control unit) 3 ... Storage unit 3b ... RAM (calling exchange table) 4 ... Operation unit 8 ... Pseudo bell generation circuit T1 T5 ... Line connection unit TEL1 to TEL5 ... Telephone L ... Telephone line

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location H04N 1/00 107 H04N 1/00 107Z

Claims (3)

[Claims] 1. A calling telephone number detecting means for detecting a calling telephone number transmitted before a calling signal from an exchange, and a communication terminal device for making a call reception for the calling telephone number detected by this detecting means are registered in advance. Call exchange table,
A communication terminal device with a call reception selection function, which is provided with a switching control means for making a call to the communication terminal device corresponding to the calling telephone number by referring to the call exchange table. 2. A communication terminal device for making an incoming call by the switching control means is directly connected to a telephone line when receiving a call signal from an exchange and sounds a ringing tone, or a pseudo bell generating circuit. The communication terminal device with a call incoming selection function according to claim 1, which is a communication terminal device for ringing a pseudo bell. 3. The calling telephone number detecting means receives the calling telephone number by a communication modem after detecting an activation signal, and then disconnects the line.
Alternatively, the communication terminal device with a call incoming selection function according to item 2.