JPH0746324A - Pribate branch exchange - Google Patents

Abstract

PURPOSE:To make it possible to transfer the automatic communication of a facsimile(FAX) without additionally connecting a public line. CONSTITUTION:The extension number of a FAX terminal to be transferred is previously stored in a FAX extension number storing part 14. At the time of detecting a call tone signal in a terminated call inputted from the FAX terminal 4 through a communication control part 10, a call tone signal identifying part 12 identifies that the transferred terminal is the terminal 4 and informs the identified result to a transfer control part 13 through the control part 10. The processing part 13 reads the extension number stored in the storing part 14 and commands a private branch exchange 2 to connect a terminating call to the extension number through the control part 10.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is used as a private branch exchange connected to a public communication network. In particular, the present invention relates to a technology for automatically transferring a facsimile incoming call coming from a public switched telephone network to a representative number.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram of a conventional private branch exchange.

Conventionally, as shown in FIG. 4, a private branch exchange apparatus has an automatic relay stand 1A including a communication control section 10A, a voice response section 11 and a transfer processing section 13A, and a public telephone line network 3.
And a private branch exchange (PBX) 2 that houses the telephone 7 and is connected to the automatic relay stand 1A. When a communication call from the originating telephone 6 with a representative number arrives at the public line port of the private branch exchange 2, the private branch exchange 2 firstly connects the automatic repeater 1 connected as one (representative number) extension terminal.
Connect with A. The automatic repeater base 1A sends voice guidance from the voice response unit 11 to the telephone 6 of the transmission source through the communication control unit 10A.

The caller follows the guidance and wants to connect to the telephone 7
Enter the extension number of as a second dial. The automatic relay stand 1A receives the second dial from the telephone 6 of the transmission source through the communication control unit 10A and transfers it to the transfer processing unit 13
Notify A. The transfer processing unit 13A sends a signal to the private branch exchange 2 so as to transfer the incoming call to the extension of the notified number. The private branch exchange 2 performs call transfer processing according to the instruction,
The communication call from the source telephone 6 is connected to the destination telephone 7.

[0005]

However, in such a conventional private branch exchange, the input of the second dial is indispensable, so that the incoming call of the automatically operated facsimile cannot be transferred. There is a problem that a separate public line must be opened for automatic facsimile communication.

Conventionally, in a facsimile apparatus, a call control signal from a transmission source is detected, and a dial signal of a transfer destination set in advance is transmitted based on the detected call control signal, so that the transmission source and the transfer destination are connected to each other even during automatic reception. There is a proposal to allow the operator to talk (Japanese Patent Laid-Open No. 60-20176).
No. 9). Further, in the facsimile apparatus, when an incoming call is received in the transfer mode, the call is transferred to the specified transfer destination by using another line so that the transfer can be performed without using the image data storage memory. There is a proposal (Japanese Patent Laid-Open No. 2-79544). None of these are for automatically transferring an incoming call from a facsimile terminal which is automatically operated by an automatic repeater of a voice response device to an extension number of a transfer destination.

The present invention solves the above problems.
It is an object of the present invention to provide a private telephone exchange device capable of transferring automatic facsimile communication without separately drawing a public line.

[0008]

According to the present invention, there is provided a private branch exchange (2) for accommodating a public line and an extension telephone line, and an automatic repeater (1) connected to this private branch exchange as one (representative number) extension terminal. ) And a voice response unit for automatically answering an incoming call and transmitting a voice guidance to this automatic repeater, and the incoming call to the private branch exchange according to a second dial for receiving the voice guidance. In a private branch exchange apparatus including a communication control means for giving information on a connection destination of the call, the automatic repeater is provided with an identification portion for detecting that the incoming call is a call to be connected to a facsimile terminal, and the communication control means. Includes means for giving the private branch exchange the number of the facsimile terminal as the connection destination of the incoming call according to the output of the identification section.

Further, in the present invention, the communication control means may include a storage means for storing in advance the extension number of the destination facsimile terminal.

Further, in the present invention, the identifying section may include a means for identifying a signal (CNG signal) in which a tone of 1100 Hz for 0.5 seconds is intermittent with a rest period of 3 seconds.

[0011]

Function: The extension number of the destination facsimile terminal is stored in advance, and when it is detected that the incoming call is a call to be connected to the facsimile terminal, the private branch exchange stores the stored facsimile as the destination of the incoming call. By giving the extension number of the terminal and connecting the incoming call to it, the automatic facsimile communication can be transferred without separately connecting to the public line.

[0012]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a private branch exchange apparatus according to an embodiment of the present invention. FIG. 3 is a diagram showing a format of a ringing tone signal transmitted from the facsimile terminal on the calling side in the case of automatic operation. 1 and 3, the private branch exchange comprises a private branch exchange 2 accommodating a public line and an extension telephone line, and an automatic relay stand 1 connected to the private branch exchange 2 as one (representative number) extension terminal. , An automatic repeater 1 which automatically responds to an incoming call and sends a voice guidance, and connects the private call 2 to the private branch exchange 2 according to a second dial which receives the voice guidance. A communication control unit 10 and a transfer processing unit 13 are included as communication control means for giving the destination information. The private branch exchange 2 is connected to a public telephone line network 3 via a public line, and a facsimile terminal 4 is connected to the public telephone line network 3.

The feature of the present invention is that the automatic repeater stand 1 is a ringing tone signal identifying section 1 as an identifying section for detecting that an incoming call is a call to be connected to a facsimile terminal.
2, the ringing tone signal identifying section 12 is provided in the communication control means.
The transfer processing unit 13 is included as means for giving the extension number of the facsimile terminal to the private branch exchange 2 as the connection destination of the incoming call according to the output of the above.

Further, the communication control means includes a facsimile extension number storage section 14 as a storage means for storing in advance the extension number of the destination facsimile terminal.

Further, the ring back tone signal identifying section 12 includes a means for identifying a signal (CNG signal) in which a tone of 1100 Hz for 0.5 seconds is intermittent after a rest period of 3 seconds.

The operation of the private branch exchange having such a configuration will be described.

FIG. 2 is a flow chart showing the operation of the automatic repeater of the private branch exchange of the present invention. In FIG. 1 and FIG. 2, when an incoming call with a representative number from the originating facsimile terminal 4 arrives at the public line port of the private branch exchange 2, the private branch exchange 2 is first connected as one (representative number) extension terminal. Connect to the automatic relay stand 1. The automatic relay stand 1 preliminarily sets the extension number of the facsimile terminal 5 to which the incoming call from the facsimile terminal should be transferred.
It is stored in the facsimile extension number storage unit 14. The communication control unit 10 of the automatic relay stand 1 receives an incoming call from the facsimile terminal 4 through the private branch exchange 2. When the ring back tone signal identifying unit 12 detects a ring back tone (CNG) signal of an incoming call, the ringing tone signal identifying unit 12 identifies that the transfer destination is an automatically operated facsimile terminal, and sends the identification result to the transfer processing unit 13 via the communication control unit 10. Notice. The transfer processing unit 13 reads out the extension number stored in the facsimile extension number storage unit 14 and instructs the private branch exchange 2 through the communication control unit 10 to transfer the communication call to this extension number. The private branch exchange 2 performs call transfer processing according to this instruction, and connects the incoming call from the facsimile terminal 4 to the facsimile terminal 5.

When the incoming call is not the ringing tone signal, the voice response unit 11 sends the guidance to the telephone 6 as the calling source as described in the conventional example. The transfer processing unit 13 receives the extension number of the transfer destination telephone set 7 by the second dial of the transmission source telephone set 6 through the communication control unit 10 and transfers it to the private branch exchange 2 through the communication control unit 10 so as to connect the incoming call to this extension number. Give instructions.

[0020]

As described above, the present invention has an excellent effect that automatic facsimile communication can be performed without separately connecting to a public line.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a private branch telephone exchange device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the automatic relay stand of the private branch exchange of the present invention.

FIG. 3 is a diagram showing a format of a ringing tone signal transmitted from a facsimile terminal on the calling side when the facsimile is automatically operated.

FIG. 4 is a block diagram of a conventional private branch exchange.

[Explanation of symbols]

 1, 1A Automatic relay stand 2 Private branch exchange (PBX) 3 Public telephone line network 4, 5 Facsimile terminal 6, 7 Telephone 10, 10A Communication control section 11 Voice response section 12 Ring tone signal identification section 13, 13A Transfer processing section 14 Facsimile Extension number storage unit 20, 20A Private telephone exchange device

Claims (3)

[Claims] 1. An automatic relay system comprising a private branch exchange (2) for accommodating a public line and an extension telephone line, and an automatic relay stand (1) connected to this private branch exchange as one (representative number) extension terminal. A voice response unit for automatically responding to an incoming call and transmitting voice guidance to the stand, and a communication for giving connection destination information of the incoming call to the private branch exchange according to a second dial for receiving the voice guidance In a private branch exchange including control means, the automatic repeater includes an identification section for detecting that an incoming call is a call to be connected to a facsimile terminal, and the communication control means follows the output of the identification section. A private branch exchange apparatus comprising means for giving the private branch exchange the extension number of a facsimile terminal as a connection destination of the incoming call. 2. The private telephone exchange apparatus according to claim 1, wherein said communication control means includes a storage means for storing in advance the extension number of the destination facsimile terminal. 3. The identification unit is 1100 Hz for 0.5 seconds.
, The tone is intermittent (3 seconds after a pause of 3 seconds).
2. A private branch exchange according to claim 1, including means for identifying (NG signals).