JPH1070603A - Transfer telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a transfer destination to identify a transfer call in the case that an incoming call is transferred from a plurality of transmission sources. SOLUTION: A message for an incoming external line a1 is recorded in a recording reproduction IC 15A in a transfer unit 151 , and a message for an incoming external line a2 is recorded in a recording reproduction IC 15A in a transfer unit 152 . In the case of receiving an incoming call from the external line a1, a message denoting, e.g. 'This is a transfer call from a company ○○'is sent to a transfer destination from the recording reproduction IC 15A in the transfer unit 151 , and in the case of receiving an incoming call from the external line as, a message denoting, e.g. 'This is a transfer call from a private line' is sent to a transfer destination from the recording reproduction IC 15A in the transfer unit 152 . As a result, when the transfer section is the same, the transfer destination can identify easily from which party the call is transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer telephone device for transferring an incoming external line call arriving at a telephone line to a transfer destination based on a call originating from a caller.

[0002]

2. Description of the Related Art In a transfer telephone apparatus of this type, when an incoming call arrives at a telephone line (hereinafter referred to as an outside line) based on a call originating from a caller, for example, an outside call which is set in advance by using another available transfer outside line. Send the transfer destination phone number, such as the destination or home. Then, when a response from the transfer destination is detected, a response is made to the incoming call from the outside line, and the called outside line and the outgoing outside line are connected to make a call between the calling side and the transfer destination.

[0003]

In recent years, as a transfer destination set in such a transfer telephone device, a telephone number of a portable telephone possessed by an individual has often been set. However, when an incoming call from a plurality of callers (ie, a plurality of transfer sources) is transferred to such a mobile phone, the mobile phone immediately recognizes where the incoming call is transferred from. There was a problem that it was not possible. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to easily identify a transferred call when a call is transferred from a plurality of transfer sources at a transfer destination.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, according to the present invention, when an incoming call arrives at any one of a plurality of accommodated outside lines, another outside line is captured and preset. In a transfer telephone device for automatically dialing a transfer destination telephone number and making a call to the transfer destination, an identification for transmitting a signal that allows the transfer destination to be identified when the transfer destination answers the call. A signal transmitting means is provided. Therefore, when an incoming call arrives at one external line, the call is transmitted to the transfer destination using the other external line, and when the transfer destination responds, a signal enabling identification of the transfer source is transmitted to the transfer destination from the identification signal transmitting means. . Further, when incoming calls arriving at a plurality of outside lines are transferred to the same transfer destination, the identification signal transmitting means is made effective.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a transfer telephone device according to the present invention. This transfer telephone device is a key telephone device comprising a main device 1 and a plurality of key telephones 21 to 2m. The main device 1 accommodates a plurality of external lines L1 to Ln and external line interfaces 111 to 11n each including an incoming call detection circuit, a loop closing circuit, and a dial circuit.
Call path switch 13, telephone interface 141-1
4m, a CPU 16 and a memory 17 are provided.

In addition, main unit 1 is provided with polarity reversal / reversion detection circuits 121 to 12n for detecting reversal and reversion of external lines, and external line transfer units 151 and 152. The external line transfer unit 15B includes a re-IC 15A and a BT detection circuit for detecting a busy tone (hereinafter, BT) from an external line. On the other hand, the key telephone 2
Control unit 21, transmission circuit 22, display circuit 23, communication circuit 2
4 and a keyboard composed of various keys.

A voice message is recorded in advance in the upper recording / reproducing IC 15A in the main unit 1 as a signal that can identify the transfer destination when the incoming call is transferred to the transfer destination. It is recorded from the key telephone 2 or recorded in advance as an existing message. Here, in the present transfer telephone device, each of the external lines L1 to Ln is divided into a receiving external line and an outgoing external line in order to transfer such an external incoming call, and an incoming call based on the transmission of the caller arrives at the incoming external line. When a call is made, a call is transmitted to the transfer destination using the external line for transmission, and when the transfer destination responds, the call is answered and the external line for incoming call is connected to the external line for outgoing call.

Therefore, as shown in FIG. 1, the polarity reversing / reversing detection circuit 12 is not provided for all external lines. The reversal / reversion detection circuit 12 detects reversal of the external line due to the response of the transfer destination and reversion due to the end of the responded transfer destination. On the other hand, when the called party (that is, the caller) talks with the transfer destination after receiving the incoming call to the incoming call outside line and ends the call, the BT arrives at the incoming call outside line.
T is B provided in each of the external line transfer units 151 and 152.
It is detected by the T detection circuit.

Now, the operation of the main part of the present transfer telephone apparatus configured as described above will be described in detail with reference to the flowchart of FIG. Here, among the external lines accommodated in the present transfer apparatus, an external line assigned for incoming call is assumed to be a, and there are n external lines for incoming call a. Also, the assigned outside line for calling is assumed to be b. Further, it is assumed that the telephone number of the transfer destination is stored in the memory 17 in advance.

In such a situation, the CPU 16 in the main unit 1 first determines whether or not an incoming call has arrived on the incoming call outside line a via the incoming call detection circuit in the corresponding outside line interface 11 in step S21. . If the incoming call cannot be detected, the next external line for incoming call is selected in step S22 and the process returns to step S21, and it is determined whether or not the incoming call has arrived at the newly selected external line for incoming call. If an incoming call arrives at any of the incoming line a, step S21
Is "Y". In this case, the CPU 1 determines in step S23 that the external line interface 1 corresponding to the outgoing line b
The external line b is captured by driving the loop connection circuit in 1 to close the DC loop of the external line b.

Next, the CPU 16 automatically dials the transfer destination number by outputting the transfer destination telephone number stored in the memory 17 to the dial circuit in the external line interface 11 in step S24. As a result, the transfer destination is called. Thereafter, it is determined in step S25 whether or not the transfer destination has responded to this call via the corresponding reversion / reversion detection circuit 12. If the response of the transfer destination cannot be detected, the process proceeds to step S26, and it is determined whether or not the incoming call continues to arrive via the incoming call detection circuit in the external line interface 11 of the incoming external line a for which the incoming call is detected. I do. Then, when the non-arrival of the incoming call is detected, the loop closing circuit in the external line interface 12 of the outgoing line b is driven in step S27 to open the DC loop of the outgoing line b and terminate.

On the other hand, if the answer of the transfer destination is detected while the incoming call is being received on the incoming call outside line a and the determination in step S25 is "Y", the CPU 16 controls the communication path switch 13 to output the outgoing call line b. And a path between the external line transfer unit 15 having the recording / reproducing IC 15A in which a message corresponding to the incoming external line a being received is recorded. Then, in step S28, the recording / reproducing IC 15A is driven to drive the recording / reproducing IC 15A.
The message for the outside line a is transmitted from 15A to the transfer destination. After the transmission of the message to the transfer destination is completed, the CP
U16 captures the incoming line a and responds to the incoming call.
A transfer process for controlling the communication path switch 13 to connect the path between the incoming line a and the transfer unit 15 is executed in step S29.

In this way, a call is started between the caller and the transfer destination via the path including the incoming line a, the communication path step 13, the transfer unit 15, and the outgoing line b. During such a transfer call, the CPU 16 controls the call path switch 13 so that the recording / reproduction IC 1
5A is disconnected from the above path.

When the BT from the incoming line a is detected via the external line transfer unit 15B in the transfer unit 15 by the caller ending the call during the call, the CPU 16 controls the call path switch 13. A call termination process is performed to disconnect the communication path between the incoming line a and the outgoing line b, and open the DC loop of the incoming line a and the outgoing line b. Further, when the transfer destination ends the call while the caller and the transfer destination end the call, and the reversion of the outgoing line b is detected, the same end processing is performed.

By the way, when a message is sent to the transfer destination prior to the transfer process in step S29 (ie, the connection process between the incoming line a and the outgoing line b), the following 2
There are different ways. That is, as a first method, a message corresponding to each of a plurality of incoming external lines is first recorded in each recording / reproducing IC, and when a call arrives at the incoming external line, a message of the incoming external line is sent to a transfer destination. Is a method of sending out.

Here, the external lines a1, a
If there are two external lines, the message for the external line a1 is recorded on the recording / reproducing IC 15A in the external line transfer unit 151,
The message for the outside line a2 is recorded in the recording / reproducing IC 15A in the outside line transfer unit 152. When there is an incoming call on the outside line a1, a message indicating, for example, "transfer from outside line 1" or "transfer from company XX" is sent from the recording / reproducing IC in the outside line transfer unit 151 to the transfer destination. Also,
When there is an incoming call on the outside line a2, for example, a message "Transfer from outside line 2" or "Transfer from private line" is sent from the recording / reproducing IC in the outside line transfer unit 152 to the transfer destination. As a result, when the transfer destination is the same, it is possible to easily identify in advance where the call was transferred from at the transfer destination.

Next, in the second method, when the external line a for incoming call is a multi-line, each external line is divided into groups and different messages are used for each group. In this case, the same message is sent to the destination when the incoming call is transferred to the outside line of the same group. That is, as a second method, for example, there are six external lines accommodated in the apparatus, and three of the lines are used independently by each of the companies A and B, and each of the companies A and B is used independently.
Assume that B is managed by the same manager and that the same manager is the transfer destination. In this case, when an incoming call arrives at the external line for incoming call used by the company A, the transfer destination is sent from the recording / reproduction IC 15A in the external line transfer unit 151 to, for example, "company A".
Message is sent to the destination.
When an incoming call arrives at another incoming line used by company A, a similar message is sent to the transfer destination.

On the other hand, when an incoming call arrives at the external line for incoming call used by the company B, a message saying, for example, "Transfer from company B" is sent to the transfer destination from the recording / reproducing IC 15A in the external line transfer unit 152. Also, when an incoming call arrives at another incoming line used by company B, a similar message is sent to the transfer destination. Therefore, the manager who is the transfer destination can easily recognize from which company the incoming call was transferred. As described above, even if there are a plurality of call transfer sources (that is, callers) to the same transfer destination, the transfer destination can easily identify the transfer source.

In this embodiment, an example has been described in which two sets of external line transfer units 151 and 152 are provided and different voice messages are transmitted from the recording / reproducing IC in each unit. (That is, when there is one outgoing line for transmission), one set of external line transfer units may be prepared. In this case, in order to identify incoming calls from a plurality of transfer sources, different messages are recorded in one recording / reproducing IC, and the recording / reproducing IC is switched for each incoming line or for each group. , Different messages can be sent to the transfer destination. In addition, recording and reproduction IC
Instead, a tone generator may be provided so that different tones can be sent out by switching for each external line for incoming calls or for each group, and the transfer destination can be identified. In addition, the present invention transfers an incoming call to an external line from different devices A and B of different companies to the same transfer destination, and sends different identification signals from the respective devices A and B to the transfer destination that has responded to the incoming call. It is also applicable to such a case.

[0020]

As described above, according to the present invention, when an incoming call arrives at any external line, the call is transmitted to the transfer destination using another external line. Is transmitted, the destination can easily identify where the incoming call was transferred from when the incoming call was transferred.
Also, in order to transmit an identifiable signal to the transfer destination when the transfer destination is the same, when incoming calls from a plurality of different transfer sources are transferred to the same transfer destination, the transfer destination performs the transfer. Calls can be accurately identified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a transfer telephone device according to the present invention.

FIG. 2 is a flowchart showing an operation of a main part of the apparatus. 111 to 11n ... external line interface, 121 to 12n
… Reversal / return detection circuit, 13… Speaker switch, 151
, 15n ... external line transfer unit, 15A ... recording / playback IC, 1
5B: external line transfer unit, 16: CPU, 17: memory, L1
~ Ln ... outside line.

Claims (2)

[Claims] When a call arrives at any one of a plurality of accommodated telephone lines, another telephone line is caught and a predetermined telephone number of a transfer destination is automatically dialed to call the transfer destination. A transfer telephone apparatus, comprising: an identification signal transmitting means for transmitting a signal that allows the transfer destination to be identified when the transfer destination answers the call, when the transfer destination answers the call. 2. The transfer telephone device according to claim 1, wherein the identification signal sending means is enabled when incoming calls arriving on a plurality of telephone lines are transferred to the same transfer destination.