JP2701715B2 - Private branch exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is suitable for use as a medium- or large-scale private branch exchange. The present invention relates to a private branch exchange provided with a device for sequentially calling a number of destination telephone numbers.

[0002]

2. Description of the Related Art In a conventional private branch exchange, when a call is made from a subscriber's line (extension telephone) accommodated in a subscriber's circuit to a number of destinations, the telephone receiver is basically picked up and the destination is picked up. It is necessary to repeat the operation of dialing the telephone number, making a call, and hanging up the handset.

There is a technique disclosed in Japanese Patent Application Laid-Open No. 3-79146 as a telephone for sequentially communicating with a large number of destinations. According to this technology, a storage circuit is provided inside a telephone, a large number of destination telephone numbers are stored in the storage circuit, and a predetermined operation is performed to store the destination telephone number stored in the storage circuit. Outgoing calls.

[0004]

The above-mentioned prior art is related to telephones, not to exchanges. Therefore, in the above-mentioned conventional technology, it is necessary to set a destination telephone number corresponding to a telephone, and a call can be made jointly from a plurality of telephones or telephone lines using one stored destination telephone number. I can't do that.

To transmit necessary information to a large number of destination telephone numbers in sequence and to transmit necessary information, the same business communication is performed to all branches, and the same is applied to a large number of customers. It may be inconvenient to store a large number of destination phone numbers in correspondence with telephones. When making a call, it is desirable to make a call from a plurality of telephones or telephone lines in a collaborative manner. Further, storing a large number of destination telephone numbers corresponding to telephone sets has a limit on the storage capacity, and managing the stored contents is troublesome.

[0006] In recent years, it has become common to carry out the above-mentioned work of transmitting the same communication to a large number of destinations by facsimile. A facsimile apparatus having a broadcast function of storing a plurality of destination numbers and sequentially transmitting the same facsimile manuscript to the destination numbers is also known. It is often more convenient to store a large number of destination numbers collectively as a company than to store a large number of destination numbers.

[0007] The present invention has been made in such a background, a private telephone which can store a large number of destination telephone numbers and sequentially make calls to the large number of destination telephone numbers. The purpose is to provide an exchange. SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus capable of making a call from a plurality of telephones using one destination telephone number storage circuit.

[0008]

SUMMARY OF THE INVENTION The present invention provides a subscriber circuit (5) accommodating a plurality of subscriber lines, an outgoing trunk (7) accommodating an outgoing line, and a subscriber circuit and a subscriber line. A call path circuit (9) for connecting the call path to this outgoing trunk
A call processing control circuit (3) for controlling connection of the communication line circuit; an on-hook state and an off-hook state of a subscriber line accommodated in the subscriber circuit are detected in correspondence with the subscriber line; ON to give to the control circuit (3)
In a private branch exchange provided with an off-hook detection circuit (4), a subscriber number storage circuit (1) capable of storing a large number of subscriber numbers, and input information from the subscriber line stored in the subscriber number storage circuit. And a subscriber number writing circuit (2) for writing a number in accordance with the following. The call processing control circuit (3) sets a subscriber line requesting writing to the subscriber number storage circuit (1). Connection control means for connecting to the subscriber number writing circuit (2); and the call processing control circuit (3) uses the subscriber number stored in the subscriber number storage circuit (1). When a call to one of the subscriber lines is completed, the outgoing line is captured and the next destination number stored in the subscriber number storage circuit is reached. Automatically sent to the outgoing line as a dial signal Characterized by comprising the sequential calling control means connected to the subscriber line to request the call.

A plurality of subscriber lines on the calling side are set,
The successive call control means of the call processing control circuit (3) captures the vacant subscriber line whenever the plurality of calling side subscriber lines become vacant, and automatically acquires the next party. It is preferable that a facsimile apparatus is connected to the calling subscriber's line by controlling the calling of the destination number.

[0010]

When a service special number (continuous calling number input request, for example, 1) is input from a telephone and a subscriber number of a destination to be continuously transmitted is sequentially input from a dial, the subscriber number is transmitted to a call processing control circuit. And sequentially notifies the subscriber number writing circuit and registers it in the subscriber number storage circuit. When the registration of the subscriber number is completed, the call processing control circuit starts sending a dial tone (DT) to the telephone. In this state, when a service special number (continuous call start request, for example, 2) is input from the telephone, the call processing control circuit makes a call request for registration data to the subscriber number storage circuit. Perform origination processing based on When the first call is completed, the call processing control circuit makes a call request for the registered data to the subscriber number storage circuit again. If the data is registered, the call processing control circuit performs a connection process with the registered destination. Perform continuously.

[0011] Thus, it is possible to automatically and continuously make a call from the telephone housed in the private branch exchange (PBX) to the other party to be called. Also, you can have more than one calling phone,
It can be connected to both office lines and extensions.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention.

In the embodiment of the present invention, a PBX system 8 includes a subscriber circuit 5 accommodating a plurality of subscriber lines, an egress trunk 7 accommodating an egress line, the subscriber circuit 5 and the egress line. A call path circuit 9 for making a call path connection to the line trunk 7, a call processing control circuit 3 for controlling the connection of the call path circuit 9, and an on-hook and off-hook state of a subscriber line accommodated in the subscriber circuit. An on / off hook detection circuit 4 for detecting a corresponding subscriber line and providing the information to a call processing control circuit 3 is provided. A feature of the present invention is that a subscriber number storage circuit 1 capable of storing a large number of subscriber numbers is provided. A subscriber number writing circuit 2 for writing a number in the subscriber number storage circuit 1 in accordance with input information from a subscriber line;
The call processing control circuit 3 includes connection control means for connecting a subscriber line requesting writing to the subscriber number storage circuit 1 to the subscriber number writing circuit 2, and further includes a call processing control circuit 3.
Means that when a call with one of the destinations is completed, a call is output from the subscriber's line on the calling side that requests a number of destinations to make a continuous call using the subscriber number stored in the subscriber number storage circuit 1. And sequentially sends out the next destination number stored in the subscriber number storage circuit as a dial signal to the outgoing line and connects to the subscriber line requesting the outgoing call.

Further, a plurality of calling side subscriber lines are set, and the sequential calling control means of the call processing control circuit 3 becomes vacant each time the plurality of calling side subscriber lines become vacant. Then, the facsimile apparatus is connected to the subscriber line on the calling side by automatically controlling the transmission of the next destination number by capturing the subscriber line.

The subscriber number storage circuit 1 stores a subscriber number of a party who makes a continuous call for each subscriber accommodated in the PBX system 8 and when a call request is received from the call processing control circuit 3. Notify the next destination number.

A subscriber number writing circuit 2 stores a subscriber number when a request for registering a subscriber number of a destination to be continuously transmitted from the telephone 6 connected to the subscriber circuit 5 is received from the call processing control circuit 3. It requests the circuit 1 to register it.
When a request to delete an erroneously entered unnecessary number from the subscriber numbers of the destinations to be continuously transmitted from the telephone set 6 connected to the subscriber circuit 5 is received from the call processing control circuit 3, the subscriber number storage circuit A deletion request for the number corresponding to 1 is made.

The call processing control circuit 3 performs connection processing with the outgoing trunk 7 when receiving a call request from the telephone 6. Further, it determines a request for registration / deletion of a subscriber number of a destination to which a call is continuously transmitted from the telephone 6 and sends the request to the subscriber number writing circuit 2.

The on / off hook detection circuit 4 monitors the handset status of the telephone 6 accommodated in the subscriber circuit 5.

The subscriber's circuit 5 accommodates the telephone 6 and, when making a call, notifies the call processing control circuit 3 of the number information and requests connection processing with the other party. Further, when receiving a request for registration / deletion of the subscriber number of the destination to which the call is continuously transmitted from the telephone 6, the dial information (MF / DP signal) is converted into a message and notified to the call processing control circuit 3.

The outgoing line trunk circuit 7 is connected to a telephone at the other end of the telephone 6.

Next, the operation of the embodiment of the present invention will be described. FIG. 2 is a sequence diagram of continuous transmission in the embodiment of the present invention.

When the telephone 6 is off-hook, the on / off-hook detection circuit 4 notifies the call processing control circuit 3 that the transmission state has been set. When the sender hears the dial tone (DT) of the telephone 6 and presses a service special number (continuous transmission number input request, for example, 1), the dial tone changes to a special tone, and the system waits for the input of a continuous transmission destination number. In this state, when the subscriber numbers of the destinations to be continuously transmitted are sequentially input from the dial of the telephone 6, the subscriber numbers are sequentially notified from the call processing control circuit 3 to the subscriber number writing circuit 2,
It is written and stored in the subscriber number storage circuit 1.

When the registration (storage) of the destination subscriber number to be continuously transmitted to the subscriber number storage circuit 1 is completed, the call processing control circuit 3 starts sending the dial tone to the telephone 6 again. In this state, when the service special number (continuous transmission start request, for example, 2) of the telephone 6 is pressed, the call processing control circuit 3 makes a call request for the data registered in the subscriber number storage circuit 1, and if there is registered data, Outgoing call processing is performed based on the subscriber number.

When the call ends and the other party turns on / off hooks, a disconnection signal is sent to the call processing control circuit 3.
The subscriber number that has made a call via the subscriber number writing circuit 2 is deleted. Thereafter, the call processing control circuit 3 recognizes that the continuous transmission request continues, and if the request continues, makes a call request for the registration data to the subscriber number storage circuit 1 again. The circuit 3 repeats the connection processing with the registered destination, the call termination monitoring, the subscriber number deletion request to the subscriber number storage circuit 1, and the read request to the subscriber number storage circuit 1.

When the subscriber number storage circuit 1 notifies that there is no registration data in response to the registration data read request from the call processing control circuit 3, the call processing control circuit 3 terminates the call with all the other parties. This is notified to the caller by sending a special sound to the telephone 6.

[0026]

As described above, according to the present invention, since it is possible to store the subscriber numbers of a plurality of destinations, it is possible to automatically make an outgoing call to an arbitrary destination. When a number is set each time or the same message is called to multiple parties, it is possible to automatically call the other party without placing the handset on the phone every time the call ends, so This has the effect of eliminating the need for dialing each destination.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a sequence at the time of continuous transmission in the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Subscriber number storage circuit 2 Subscriber number writing circuit 3 Call processing control circuit 4 On / off hook detection circuit 5 Subscriber circuit 6 Telephone 7 Outgoing trunk 8 PBX system 9 Call path circuit

Claims (1)

(57) [Claims] 1. A subscriber circuit accommodating a plurality of subscriber lines, an outgoing trunk accommodating an outgoing line, and a speech path circuit for establishing a speech path connection between the subscriber circuit and the outgoing trunk. When, in the private branch telephone exchange and a call processing control circuit for controlling the connection of the communication path circuits, the subscriber number storage circuit capable of storing a large number of subscriber numbers,
A subscriber number writing circuit for writing a number in accordance with input information from the subscriber line in the subscriber number storage circuit, wherein the call processing control circuit performs writing in the subscriber number storage circuit; Connection control means for connecting a requesting subscriber line to the subscriber number writing circuit; and the call processing control circuit uses the subscriber number stored in the subscriber number storage circuit to generate a plurality of subscriber numbers. the originating subscriber line that requires a continuous call to the destination, the call with a destination is completed, the originating subscriber
It captures outgoing line still connected to the line, to connect sent automatically to its outgoing line to the next destination number stored in the subscriber number storage circuit as a dial signal to the subscriber line of the originating A private branch exchange comprising sequential call control means.