JP3533035B2 - Automatic fax reception method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a button telephone system using a general telephone communication line, in which a single FAX is connected via an adapter and a line is automatically transferred to the FAX without a person. Regarding automatic reception method.

[0002]

2. Description of the Related Art In a button telephone system using a general telephone communication line, in order to use a FAX communication service, an extension telephone is connected to a main unit and a single FAX is connected via an adapter. In this button phone system,
The extension telephone responds to the incoming call on the line and the responder faxes the other party.
The method is to put the line on hold by confirming that it is an incoming call signal from the user or by verbal confirmation and transfer it to a single FAX. In either case, the responder is F
It is necessary to recognize the AX signal.

[0003]

Therefore, the other party F
If there is no responder near the extension telephone when receiving a signal from AX, there is a problem that the signal from the other party's FAX cannot be received. This is an unavoidable problem as long as the method of recognizing the FAX signal through a person or verbally confirming the FAX reception is taken, and it means that the FAX communication service cannot be used in the absence.

The present invention has been proposed in order to solve the above-mentioned problems, and a fax incoming call for fax communication can be performed even if a person does not confirm the incoming signal from the fax or verbally confirm. The purpose is to provide an automatic receiving method.

[0005]

The invention according to claim 1 which achieves the above object, is a main unit of a button telephone system.
In the method for automatically receiving an incoming FAX call in a FAX communication system in which an extension telephone set and an adapter to which a single FAX is connected are connected in parallel, the adapter includes a FAX signal detection circuit and an extension line connected to the main device. FA alone
X or a switching relay for connecting to the FAX signal detection circuit by switching, and a first step of detecting an incoming call from the other party's FAX by the main device and ringing the extension telephone; and the extension telephone. In response to the response, the extension on the adapter side is connected to the FAX signal detection circuit side by the switching relay to connect to the partner FAX.
Second step of detecting a fax signal from the
In response to the detection of the fax signal by the signal detection circuit, the main unit temporarily loops the line to connect the extension on the adapter side to the single fax side by the switching relay, and then opens the loop on the line. Then, the third step of connecting the line to the adapter side is performed.

The invention according to claim 2 is the F according to claim 1.
In the automatic receiving method for AX incoming call, the extension telephone set in the first step is a telephone having an answering machine function, and the extension telephone set is made to ring and answer even during absence, and the second and third steps are performed. It is characterized by.

[0007]

According to the inventions of claims 1 and 2,
At the time of answering the incoming call from the partner FAX, the line is automatically connected to the single FAX and the FAX communication is performed by the automatic reply.

[0009]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram for explaining the principle of the present invention. As shown in the figure, when a signal is transmitted from the other party FAX 1, the signal is received by the key telephone system control main unit 3 via the analog exchange 2. The incoming call signal is detected by the 16 Hz incoming call detection circuit 4, and the incoming call is transmitted to the extension telephones 7 and 8 via the centralized control circuit 5 and the data transmission circuit 6. Then, the first extension telephone 7 (extension number 1) or the second extension telephone 8 (extension number 2) having the answering machine response function responds. At the same time responding,
Since the FAX signal detection circuit 10 of the FAX connection adapter 9 (extension number 3) is connected in parallel to the extension telephones 7 and 8, the FAX connection adapter 9 causes the switching relay 18 to pass through the FAX signal detection circuit 10 side. The FAX signal detection waits.

When the line on the receiving side responds in this way, the partner FAX 1 starts transmitting a FAX signal. Then FA
The X signal detection circuit 10 detects the signal and transmits the signal to the sub control circuit 12 via the data transmission circuit 11, disconnects the call from the first extension telephone 7 or the second extension telephone 8, and separates the line. It is connected to the FAX 13 so that the FAX signal can be received.

As described above, according to the present invention, by providing the FAX signal detection circuit 10 in the FAX connection adapter 9,
The reception of the AX signal is automatically transferred to the standalone FAX 13. In this respect, the first extension telephone 7 or the second extension telephone 8 responds to the signal from the other party's FAX 1,
Smooth fax communication becomes possible as compared with the conventional operation in which a person confirms FAX reception by the signal or verbally, temporarily suspends it, and transfers it to the FAX connection adapter 9. The extension telephone that responds to the signal from the other party's FAX1 is released from the communication line, and a display device such as a liquid crystal display is provided on the extension telephone to notify the responder of this, or the extension telephone is completed. If a method of providing a sound generator is adopted, convenience in use can be achieved.

FIG. 2 and FIG. 3 continuously show the first embodiment, and are block diagrams of operation modes based on the principle configuration diagram shown in FIG. 1 (of the portion corresponding to FIG. 1). The same symbols are attached to the operation displays, and the same applies to the following drawings). As shown in the figure, when the other party's FAX 1 makes a call, a 16 Hz incoming signal is sent from the analog switch 2 on the receiving side. This 16 Hz incoming call signal is detected by the 16 Hz incoming call detection circuit 4 of the key telephone system control main unit 3, and passes through the centralized control circuit 5 and the data transmission circuit 6 to the extension telephone 7 (8).
The incoming call is delivered to.

Then, the extension telephone set 7 (8) passes through the data transmission circuit 14 (15) and the sub control circuit 16 (17).
To send a signal to ringing and answer the line. In this case, if there is a person on the side of the first extension telephone 7, the person responds,
When not present, the second extension telephone 8 responds. When answering, button telephone system control main unit 3
The centralized control circuit 5 stores the response of the extension telephone 7 (8) as data and, at the same time, instructs the FAX connection adapter 9 to detect a FAX signal.
At this time, the switching relay 18 (FIG. 1) faces the FAX signal detection circuit 10 and waits for detection.

Then, the FAX signal detection circuit 10
When the signal is detected, the sub control circuit 12 determines that the incoming call is from the other party's FAX 1 via the data transmission circuit 11.
A signal is transmitted to the key telephone system control main unit 3.
Then, the centralized control circuit 5 of the key telephone system control main unit 3 enters an automatic transfer sequence.

On the other hand, when the FAX signal detection circuit 10 of the FAX connection adapter 9 does not detect the FAX signal, it is determined that the call is a general call and the first extension telephone 7 is timed out.
Alternatively, the second extension telephone set 8 is put into a call state. When the automatic transfer sequence is entered as described above, the line loop circuit 19 temporarily loops to release the line from the extension telephone 7 (8) that responded and connect it to the FAX connection adapter 9 The extension telephone 7 (8) is instructed to open and the FAX connection adapter 9 is instructed to connect the FAX.

When a FAX connection is instructed, the FA
The sub-control circuit 12 of the X connection adapter 9 switches the switching relay 18 (FIG. 1) to the single FAX 13 side, and requests the line connection. And the line is a standalone FAX13
When the line loop circuit 19 connected to the side is opened, the FAX communication with the standalone FAX 13 and the partner FAX 1 is started. During the line opening operation of the extension telephone 7 (8), the responder is informed of that fact through the display and a completion tone is sent out. When the FAX communication is completed, the line is disconnected, the FAX connection adapter 9 confirms the completion, and the fact is transmitted to the centralized control circuit 5 of the key telephone system control main unit 3 to wait the system again. Put in a state.

FIG. 4 shows a reference example developed with the present invention, and is a block diagram showing an operation mode based on the configuration of FIG. As shown in FIG. 1, the signal from the FAX network 20 is transmitted to the analog exchange 2 on the receiving side, and the incoming signal is transmitted to the FAX network receiving circuit 21 of the key telephone system control main unit 3, Further, it is transmitted to the centralized control circuit 5.

With such a configuration, when a network incoming signal is input from the FAX network 20, it is transmitted to the FAX network incoming circuit 21 of the key telephone system control main unit 3 via the analog exchange 2 and the signal is detected. . In this case,
It goes without saying that unlike the signal from the other party's FAX1, the 16 Hz incoming signal does not come. Then, the centralized control circuit 5 of the key telephone system control main unit 3 judges that it is a signal from the FAX network 20 and does not issue a ringing instruction to the extension telephones 7 and 8 directly, but directly to the FAX connection adapter 9 as a single FAX 13.
Enter the automatic transfer sequence to connect the line to.

In this way, the FAX connection adapter 9 instructed to operate via the data transmission circuit 6 is a single FAX 1
Ring to 3 Then, the standalone FAX 13 responds and connects the line. Then, when the switching relay 18 is switched to the single FAX 13 side and set to the automatic response state, the FAX communication becomes possible. On the other hand, when the FAX communication is completed, the standalone FAX 13 disconnects the line, the FAX connection adapter 9 confirms the completion, and transmits it to the centralized control circuit 5 of the key telephone system control main unit 3,
Put the system in standby again.

[0020]

As described above, the present invention has the following effects. According to claim 1, in the automatic reception method of a FAX incoming call of a FAX communication system in which one or more extension telephones and an adapter to which a single FAX is connected are connected in parallel to the main unit of the key telephone system, the adapter is It has a FAX signal detection circuit and a switching relay that switches and connects the extension connected to the main device to the single FAX or the FAX signal detection circuit, and the main device detects an incoming call from the other party's FAX. In response to the first step of ringing the extension telephone and the extension telephone, the extension on the adapter side is connected to the FAX signal detection circuit side by the switching relay and the FAX from the partner FAX is transmitted. In response to the second step of detecting a signal and the FAX signal detecting circuit detecting a FAX signal, After temporarily looping and connecting the extension on the adapter side to the single FAX side by the switching relay, the loop of the line is opened and the third step of connecting the line to the adapter side is performed. , It is not necessary to recognize whether it is a FAX call on a general line or to operate consciously,
It becomes possible to eliminate operation mistakes and the like, and smooth and proper FAX communication can be realized.

According to claim 2, the FAX according to claim 1
In the method of automatically receiving an incoming call, the extension telephone set in the first step is a telephone set having an answering machine function, and the extension telephone set is set to ring to answer even during absence, and the second step,
Since FAX communication is performed after the third step, a smooth and proper FAX is automatically received by the answering machine function even when you are out.
Communication can be realized.

[0022]

[Brief description of drawings]

FIG. 1 is a block diagram for explaining the principle of the present invention.

FIG. 2 is a partial block diagram showing an operation mode according to the first embodiment.

FIG. 3 is a partial block diagram showing an operation mode according to the first embodiment.

FIG. 4 is a block diagram showing an operation mode according to a reference example developed together with the present invention.

[Explanation of symbols]

1 opponent FAX 2 analog switch 3 button telephone system control main unit 4 16Hz incoming call detection circuit 5 Centralized control circuit 6 Data transmission circuit 7 First extension telephone 8 Second extension telephone 9 FAX connection adapter 10 FAX signal detection circuit 11 Data transmission circuit 12 Sub control circuit 13 Single FAX 14 Data transmission circuit 15 Data transmission circuit 16 Sub control circuit 17 Sub control circuit 18 Switching relay 19 line loop circuit 20 FAX network 21 FAX network incoming detection circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Kuroki 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (72) Inventor Kimitoshi Nakamura 3-19-3 Nishishinjuku, Shinjuku-ku, Tokyo No. 2 Nihon Telegraph and Telephone Corporation (56) Reference JP-A-5-236537 (JP, A) Actual development Sho 57-155867 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB) Name) H04M 11/00-11/10

Claims (2)

(57) [Claims] 1. A method of automatically receiving an incoming FAX call in a FAX communication system in which one or more extension phones and an adapter to which a single FAX is connected are connected in parallel to a main unit of a key telephone system, wherein the adapter is a FAX signal. It has a detection circuit and a switching relay that switches and connects the extension connected to the main device to the single FAX or the FAX signal detection circuit, and the main device detects an incoming call from the other party's FAX and In the first step of ringing the extension telephone, and in response to the response of the extension telephone, the extension on the adapter side is connected to the FAX signal detection circuit side by the switching relay to transmit the FAX signal from the partner FAX. In the second step of detecting, and in response to the FAX signal detection circuit detecting the FAX signal, the main device disconnects the line. A third step is performed in which the extension line on the adapter side is connected to the single FAX side by the switching relay by temporal looping, and then the line loop is opened to connect the line to the adapter side. Automatic fax receiving method. 2. The extension telephone set in the first step is a telephone set having an answering machine function, and the extension telephone set is ringed and made to respond even during absence, and the second and third steps are performed. The automatic reception method of a FAX incoming call according to claim 1.