JPS62193448A - Communication control equipment - Google Patents

Abstract

PURPOSE:To permit an outgoing call side to perform a transmission when an incoming call side is ready, by making perform a transmission operation by a terminal equipment in which a hooking is stored when an incoming is detected. CONSTITUTION:A control part 12, when receiving an incoming detection signal, checks whether the hooking has been performed or not just prior to that time, and when the execution of the hooking has been stored, it issues a transmission instruction to a facsimile 16. The facsimile 16 enters the transmission operation based on the instruction, however, it is impossible to perform a communication by the fascimile, because an opposite outgoing station is also in the transmission operation. When no transmission operation is possible for a regulated time like in the above case, a control part 12 changes the transmission instruction to a reception instruction, and issues the reception instruction to the facsimile 16. When the control part 12 issues the reception instruction to the facsimile 16, the facsimile 16 performs a reception operation.

Description

TECHNICAL FIELD The present invention relates to a communication control device, and more particularly to a communication control device that controls transmission or reception of a terminal device such as a facsimile machine.

Conventional facsimile machines cannot transmit if the called station is busy when a call is made, so the line is restored, the call is waited for a predetermined time, and once the called station is ready, the call is made again.
had to be transmitted to the called station. For this reason, when the called station is busy with another station, even if you wait for a while and make a call again, there is a drawback that it is difficult to send a call because the station is busy again.

To solve this problem, if the called station is busy when the call is made, the exchange sends a paging signal (ringing) to the calling station and the called station when the called station becomes ready. is possible.

However, facsimile machines are provided with an automatic call detection section, and when this automatic call detection section detects a ringing signal on the line, a control circuit activates the facsimile machine to perform a reception operation. For example, in GCITT 03m, [1] When the incoming call detection unit detects a ringing signal, it immediately sends out a CED (called station identification) signal to the line, and then sends out a DIS (digital identification) signal to the line. side operates as a transmitter, and when it receives the DIS signal from the receiving side, DC9
(Digital command) Send signal, GCIT Ding Recommendation 〒30
Sending operations were performed according to the flow.

In this way, when a ringing signal is detected, it always enters the receiving operation, so the calling side also has to wait for the receiving operation due to the ringing signal from the exchange, so after the called station becomes ready, 1. It was not possible to send the message automatically from the calling party.

OBJECTS It is an object of the present invention to overcome the drawbacks of the prior art and to provide a communication control device that allows a calling party to send a message when the called party becomes ready.

Configuration In order to achieve the above object, the present invention provides a hooking means for hooking in a communication control device connected between a subscriber line and a terminal device.

It has a hooking storage means for storing that hooking has been performed by the hooking means, an incoming call detecting means for detecting an incoming call, a control stage P for controlling the terminal device, and when an incoming call is detected by the incoming call detecting means, The present invention is characterized in that when a hook is stored in the hook storage means, the control means causes the terminal device to perform a transmission operation. Hereinafter, the present invention will be specifically explained based on examples.

FIG. 1 shows an embodiment of a facsimile transmission/reception control device according to the present invention.

The subscriber line connected to the central office exchange is connected via a hooking relay 2 to a relay 4, which in turn is connected to a telephone 6 or a fax modem 8. Further, an automatic incoming call detection unit 10 is connected to the subscriber line, a control unit 12 is connected to the automatic incoming call detection unit IO, and a hooking switch 14 is connected to the control unit 12. The control section 12 is also connected to the modem 8 and the hooking relay 2.

The automatic incoming call detection unit 10 detects ringing (calling signal) sent from the exchange to the subscriber line.

As will be described later, the hooking switch 14 performs hooking so that when the called station is busy, it will transmit after becoming ready. The control unit 12 operates the hooking relay 2 according to the input from the hooking switch 14.
The modem 8 is caused to perform hooking, the hooking is stored, and the modem 8 is controlled by the incoming call detection signal from the automatic incoming call detection section 10.

Next, the operation of this device will be explained.

When transmitting a document by facsimile, the operator transmits the subscriber number of the called station using the telephone 6. ri When the calling station is busy and the operator wants to send a document after the called station becomes ready, the operator presses the hooking switch 14. When the control unit 12 receives the signal from the hooking switch 14, it momentarily switches on the hooking relay 2. Turn it off and output a hooking pulse to the subscriber line. after that,
The operator returns the handset of the telephone @e to the on-footer.

When the switch detects a hooking pulse, it memorizes it and sends out ringing to both the called station and the calling station when the called station returns from busy to ready.

In the calling station, that is, in the apparatus shown in FIG. Control unit 12
When it receives the incoming call detection signal, it checks whether hooking has been performed immediately before, and if it is stored that hooking has been performed, it issues a transmission command to fax 16. As a result, the transmission data is modulated by the modem 8 and sent to the subscriber line, and the transmission operation of the facsimile 16 is performed.

On the other hand, when this device is used as a receiving device, it operates as follows. An automatic incoming call detection section 10 detects ringing transmitted to the subscriber line and outputs an incoming call detection signal to the control section 12. When the control unit 12 receives the incoming call detection signal, it checks whether or not calling/king has been performed immediately before. In this case, since the fact that hooking has been performed is not stored, a reception command is issued to the fax machine 16. As a result, the fax 16 performs a receiving operation, and the received data demodulated by the modem 8 is sent to the fax 16.

In addition, after performing the above-mentioned hooking with this device,
If there is an incoming call from another calling station, an operation is performed to receive the call.

To explain this operation, as mentioned above, the automatic call detection section 1
0 detects the ringing being sent to the subscriber line,
The incoming call detection signal is output to the control section 12. When the control unit 12 receives the incoming call detection signal, it checks whether or not hooking has been performed immediately before, and in this case, since it is stored that two-two kinging has been performed, it sends a transmission command to the fax 16. emanate. The fax machine 16 then enters the transmission operation, but since the other party's calling station is also in the transmission operation,
Unable to communicate.

If the sending operation cannot be performed for a certain period of time as described above, the control unit 12 changes the sending command to a receiving command and issues the receiving command to the facsimile 16. For example, if a CNG signal (call identification signal) from the other station is detected after starting the transmission operation, the control unit 12 changes the transmission command to a reception command and issues the reception command to the fax machine. In addition, if a reception identification signal is not detected from the other station within a predetermined time after ringing is detected, this will cause the control unit to
2 may change the transmission command to a reception command.

Furthermore, after detecting ringing, if a reception identification signal is not detected from the partner station within a predetermined period of time, the control unit 12 may change the transmission command to a reception command. When a message is sent to the fax 16, the fax 16 performs a receiving operation.

According to this embodiment, if the calling party performs hooking when the called party's fax machine is in use, ringing will be detected on both the calling party and the called party when the called party becomes available. First, the calling side can determine from the hooking memory that it is in a transmission waiting state and automatically perform a transmission operation. Therefore, when the called party's fax machine is in use, the calling party does not have to wait for the called party to become geredi and make a call again. When the device becomes ready, the transmission operation is automatically performed.

If you wait for the called party to become ready and try to make a call again as in the past, if the called party is busy again when you make a re-call, you will generally have to wait until the called party becomes ready. According to this embodiment, as mentioned above, when the called party becomes ready, it is possible to automatically send the message immediately. Easy to send.

FIG. 2 shows another embodiment in which the communication control device according to the present invention is applied to a FAX.

The subscriber line connected to the central office exchange is connected via a relay 4 to a fax modem 8. Also,
An automatic incoming call detection section 10 and a hooking detection section 18 are connected to the subscriber line, a control section 12 is connected to the automatic incoming call detection section IO and the hooking detection section 18, and a modem 8 is connected to the control Q1 section I2. ing. A telephone 6 is connected to the relay 4, and when the handset of the m-packing machine B goes on-hook, the relay 4 is opened and a hooking pulse is output to the subscriber line. The automatic incoming call detection unit 10 detects ringing (calling signal) sent from the exchange to the subscriber line, and the hooking detection unit 18 detects the ringing signal sent from the exchange to the subscriber line. Detect aL hooking pulse. The control unit 12 stores hooking based on the signal from the hooking detection unit 18 and controls the modem 8 based on the incoming call detection signal from the automatic incoming call detection unit 10.

Next, the operation of this device will be explained.

When transmitting a document by facsimile 18, the operator transmits the subscriber number of the called station via telephone 6. If the called station is busy and the operator wants to send a document after the called station becomes ready, the operator turns the handset of telephone 6 on-hook, momentarily turns off relay 4, and outputs a hooking pulse to the subscriber line. do. Thereafter, the operator returns the handset to on-hook, and the hooking detector 18 detects a hooking pulse on the subscriber line and outputs a detection signal to the controller 12. The control unit 12 stores the fact that hooking has occurred.

When the switch detects a hooking pulse, it memorizes it and sends out ringing to both the called station and the calling station when the called station returns from busy to ready. In the calling station, that is, the apparatus shown in FIG. 2, an automatic call detection section 10 detects ringing transmitted to the subscriber line, and outputs a call detection signal to the control section 12. When the control unit 12 receives the incoming call detection signal, it checks whether or not hooking has been performed immediately before, as in the above embodiment, and in this case, since it is stored that hooking has been performed, it does not send Issue orders to fax. As a result, the transmission data is modulated by the modem 8 and sent to the subscriber line, and the fax 1
6 transmission operations are performed.

On the other hand, when this device is used as a receiving device, it operates as follows. The automatic incoming call detection unit IO detects ringing sent to the subscriber ML and outputs one incoming call detection value signal to the control unit 12. When the controller m112 receives the incoming call detection signal, it checks whether hooking has been performed immediately before. In this case, since there is no memory that the two-to-two king was performed, a reception command is issued to the facsimile 16. As a result, the fax 18 performs a receiving operation, and the received data demodulated by the modem 8 is sent to the fax 16.

In addition, after performing the above-mentioned hooking with this device,
The operation when the transmission operation cannot be performed, such as when there is an incoming call from another calling station, is the same as in the embodiment shown in FIG.

In this embodiment as well, if the called party's fax machine is in use, the calling party does not have to wait for the called party to become ready and then make a call again. Transmission is easy because the transmission operation is automatically performed when the called party becomes ready.

FIG. 3 shows still another embodiment in which the communication control device according to the present invention is applied to a facsimile.

The subscriber line connected to the central office exchange is connected to a fax modem 8 via a dial relay 20. Further, an automatic incoming call detection unit 10 and a busy tone detection unit 81!22 are connected to the subscriber line, and a control unit 12 is connected to the automatic incoming call detection unit 10 and busy tone detection unit 22.
A modem 8 and a movement transmitting section 24 are connected to the control section 12, respectively. The automatic transmission section 24 is further connected to the dial relay 20.

Next, the operation of this device will be explained.

When sending a manuscript by fax, the automatic transmission section 24
makes a call using the subscriber number of the called station entered by the operator.0 If the called station is busy, the busy tone detection fi22 detects the busy tone of the called station from the subscriber line and sends a busy tone detection signal. Control lol? Output to st2.

As a result, the control section 12 outputs a two/king signal to the automatic transmission section 24, and automatically transmits a? ! The dial relay 20 connected to &24 is turned off for a certain period of time to perform hooking, and at the same time, the control unit 12 stores the fact that hooking has been performed.

When the called station returns from busy to ready, the automatic incoming call detection section 10 detects ringing on the subscriber line and outputs one incoming call detection value number to the control section 12 as in the previous embodiment. When the control unit 12 receives the incoming call detection signal, it checks whether hooking has been performed immediately before, and in this case, since it is stored that hooking has been performed, it issues a transmission command to the facsimile 16. Other operations are similar to those in the previous embodiment.

In this embodiment as well, if the called party's fax machine is in use, the calling party does not have to wait for the called party to become ready and make a call again; Transmission is easy because the transmission operation is performed automatically. Moreover, if the called party's fax machine is in use,
Since the calling side detects a busy tone using the busy tone detection unit and automatically hooks the caller, there is no need for the operator to perform a hooking operation.

Effects According to the present invention, when the terminal device of the called side is in use, the calling side does not need to wait for the called side to become ready and perform the calling operation again. Transmission is easy because the transmission operation is automatically performed when this happens.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment in which the communication control device according to the present invention is applied to a fax machine.
The figure is a block diagram showing another embodiment in which the communication control device according to the present invention is applied to a facsimile. Explanation of symbols of main parts 210. Hooking relay 4, , , re-e, ,, f
Talk device 819. Modem 10, Automatic call detection section 12, Control section 14, Hooking detection section 20, Dial relay 22, Busy tone detection section 24, Automatic transmission section

Claims (1)

[Claims] 1. In a communication control device connected between a subscriber line and a terminal device, the communication control device includes: hooking means for performing hooking; and a means for detecting that hooking has been performed by the hooking means. It has a hooking storage means for storing, an incoming call detection means for detecting an incoming call, and a control means for controlling a terminal device, and when the incoming call detection means detects an incoming call, the hooking is stored in the hooking storage means. In this case, the control means causes the terminal device to perform a transmission operation. 2. In the communication control device according to claim 1, the communication control device further includes a busy tone detection section, and when the busy tone detection section detects that the called station is busy, the control means A communication control device characterized by causing the hooking means to perform hooking.