JPS6316751A - Transfer telephone system - Google Patents

Abstract

PURPOSE:To expand the opportunity of opposite response for a caller, by providing a setting switch which sets plural transfer addresses at a transfer telephone system, and a means which detects a busy tone when the transfer address is busy, and transmits a call to another transfer address again. CONSTITUTION:An incoming call to a first central office line is detected by an incoming call detection circuit 3, and a bit of information regarding the incoming call is transmitted to a microprocessor 6. The microprocessor 6 operates a di relay contact 2 by the above information, and sends a dial to a second central office line according to the input of the set data by the setting switch 8, then calls an opposite. When the opposite responds, a state goes to a transfer call state. When the opposite of the transfer address is busy, the busy tone is detected by a busy tone detection circuit 7, and the bit of information is transmitted to the microprocessor 6, and the microprocessor 6 catches again the second central office line by the above information, and sends the dial of a second transfer address to the second central office line, according to the input of the set data by the setting switch 9, then calls the opposite. In this way, it is possible to expand the opportunity of opposite response for the caller.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a telephone transfer device that can set a plurality of telephone numbers for transfer destinations and transfer to another telephone number when the first telephone number is busy. .

BACKGROUND OF THE INVENTION FIG. 2 shows the configuration of a conventional transfer telephone device. Second
In the figure, 1 and 2 are DI relay contacts for forming a communication path for the office line and sending out dial pulses, and 3 and 4 are incoming call detection terminals for detecting incoming calls and detecting the other party's response. 5 is a bidirectional amplifier that compensates for loss in the line to the telephone office, 6 is a microprocessor that controls the entire transfer telephone device, 7 is a circuit that detects the end of a call by a busy tone, and 8 is a transfer destination telephone. This is a setting switch to register a number.

Next, the operation of the above conventional example will be explained. In FIG. 2, when there is an incoming call on the first office line, the incoming call detection circuit 3 detects it and transmits the information to the microprocessor 6.

The microprocessor 6 thereby operates the di IJ switch 2 and sends the dial to the second office line in accordance with the setting data input by the setting switch 7. When the other party at the transfer destination responds, the incoming call detection circuit 4 detects the polarity reversal caused by the other party's response, and transmits this information to the microprocessor 6. This causes the microprocessor 6 to
The J-ray contact 1 is operated to form a direct current loop for the first office line, and a communication path between the first office line and the second office line is formed through the bidirectional amplifier 5, and the two are placed in a communication state.

In this way, even with the above-mentioned conventional transfer telephone device, an incoming call addressed to an arbitrary telephone number set by the setting switch 7 can be transferred.

Problems to be Solved by the Invention However, in the conventional transfer telephone device described above, the transfer destination can only be set in one place, so if the transfer destination is busy, the call cannot be transferred to the transfer destination. There was a problem that calls were not possible.

The present invention solves these conventional problems,
It is an object of the present invention to provide an excellent telephone transfer device that can increase the chances of a caller answering the other party.

Means to Solve the Problems In order to achieve the above object, the present invention provides a setting switch for setting a plurality of forwarding destinations in a forwarding telephone device, and detects a busy tone when the forwarding destination is busy. This provides a means for sending the message again to another destination.

Therefore, according to the present invention, even if the first transfer destination is busy, the busy tone can be detected and the call can be redirected to another transfer destination, and multiple calls can be made at the transfer destination's office or the like. If a subscriber line is available, calls can be made again until the vacant subscriber line is called, which has the effect of increasing the caller's chances of responding to the other party.

Embodiment FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, numerals 1 to 8 indicate the same components as shown in FIG. Further, 9 is a setting switch for registering the telephone number of the second transfer destination.

Next, the operation of the above embodiment will be explained. In the above embodiment, when there is an incoming call on the first office line, the incoming call detection circuit 3 detects it and transmits the information to the microprocessor 6. The microprocessor 6 thereby di IJ
Activate the switch 2 and send the dial to the second office line in accordance with the setting data input by the setting switch 8 to call the other party.

When the other party answers, the call will be forwarded as before.

If the destination party is busy (:), the busy tone detection circuit 7 detects the busy tone and transmits the information to the microprocessor 6, which causes the microprocessor 6 to switch to the second station line again. Then, in accordance with inputting the setting data using the setting switch 9, the user calls the other party to the dial of the second transfer destination and the second office line.

In this way, according to the above embodiment, when the first transfer destination is busy, the call can be redirected to the second transfer destination, especially when the transfer destination accommodates multiple subscriber lines. , it is possible to make a call again until a vacant subscriber line is called, which has the effect of increasing the caller's chances of responding to the other party.

It is also possible to provide two or more types of setting switches and to have two or more transfer destinations. It goes without saying that it is also possible to reduce the number of setting switches by providing one type of setting switch and a memory for registering forwarding destination phone numbers, and setting multiple forwarding destination phone numbers from the setting switch in the memory. .

Effects of the Invention As is clear from the above embodiments, the present invention can detect the busy tone when the first transfer destination is busy and transfer the signal to another second transfer destination. In particular, when multiple subscriber lines are accommodated at the forwarding destination, the call can be repeated until a vacant subscriber line is called, allowing the caller to make effective use of the multiple subscriber lines and giving the caller an opportunity to respond to the other party. It has the effect of being able to expand.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a transfer telephone device according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a conventional transfer telephone device. 1.2... dilJ relay contact, 3, 4... incoming call detection circuit, 5... bidirectional amplifier, 6... microprocessor, 7... busy sound detection circuit, 8, 9...・Telephone number setting switch. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figures 2 and 2

Claims (1)

[Claims] means for transferring an incoming call to a preset first transfer destination; means for detecting when the first transfer destination transferred by the transfer means is busy; A transfer telephone device comprising means for transferring the telephone call to a separately set second transfer destination when it is detected that the first transfer destination is busy.