JPH06276293A - Multi-line extension transfer system - Google Patents

Abstract

PURPOSE:To provide a multi-line extension transfer system capable of sending out a busy tone when an own extension is busy and without sending out the busy tone when it is free when a multi-line is operated. CONSTITUTION:A multi-line system is comprised in such a way that the extension numbers of plural extension terminals 4 allocated by corresponding to the button information of an own extension button and another extension button at every extension terminal 4 are stored in a memory means 22, and an extension number readout means 12 reads out the another extension numbers in correspondendence to response extension terminal information and operating button information from the extension terminal from the memory means 22 when the extension terminal operates a received another extension button corresponding to a call from a terminal 2 to another extension terminal, and a connection control means 14 stops the call of a called extension terminal when the extension terminal in accordance with another read out extension number is being called, and controls the line connection of a network 1 so as to receive an incoming call to a response extension terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-line service in which a plurality of extension terminals are assigned to function buttons of a multi-function telephone by using a plurality of extensions on a single telephone and reading out to other extensions. The present invention relates to a multi-line extension transfer method for automatically transferring to a self extension when a call is answered or a call held on another extension is answered.

[0002]

2. Description of the Related Art Conventionally, a multi-line service has been used as a means for sharing a line between a plurality of telephones and facilitating a call response and a transfer operation. The multi-line service is to use a plurality of extension terminals with one telephone by assigning a plurality of extension terminals to function buttons of a digital multi-function telephone.

FIG. 8 shows the structure of a multi-line service. In FIG. 8, each extension telephone of the four extension telephones 4-0 to 4-3 is provided with an own extension button and an other extension button, and four extension telephones are provided to each extension telephone. Buttons and other extension buttons are assigned. For example, the extension telephone 4-0 is provided with a button 40-0 for own extension number 100 and buttons 40-1, 40-2, 40-3 for other extension number 101. The buttons with the same extension number on each extension telephone are commonly connected.

With such a configuration, even if there is an incoming call to another extension, the incoming call can be answered. Also, one extension telephone can be used with a plurality of digital multifunction telephones.

[0005]

However, the multi-line service has the following problems. First, in the multi-line service, when an incoming call to another extension button is answered, the called extension button (call extension button) is usually pressed to answer. The call at that time is made through the line of the called extension button. At this time, because the answerer's extension is free, the caller addressed to the answerer was allowed even though the answerer was talking, and the busy tone could not be sent.

Further, since the called extension (own extension) is busy, when an incoming call addressed to the called party is received, the incoming extension telephone cannot be received even though the telephone of the called extension is idle, and is busy. Sound will be sent. Furthermore, when a call is made from the called extension telephone, the call is made by the line of the other extension button because the own extension is busy. In this case, the other extension used is also in use of its own extension, and the busy tone is transmitted even though the telephone is idle.

For example, for an incoming call to extension number 101,
A case where the same multi-line group extension number 100 responds will be described with reference to FIG. In FIG.
When the number 101 is dialed aiming at the person corresponding to the extension 101 who is the called main line telephone, the 101 button is displayed on the lamp. Then, the responder of the telephone having the extension number 100 answers the incoming call by raising the handset 60. At this time, since the line with the number 101 is in use, the busy tone is transmitted to the person corresponding to the number 100 even though the extension is free. Further, when the number 100 is dialed for the person corresponding to the extension number 100, the line of the number 100 is free, and therefore the person corresponding to the number 100 is busy but cannot output the busy tone.

On the other hand, when answering a call held by the other extension button, the holding extension button is usually pressed to answer the call. The call at that time will be made through the line of the hold extension button. When the call-holding party's telephone to be used is in use of the extension and a call is received to the call-holding party, the busy tone is transmitted even though the telephone is idle.

The present invention has been made in view of the above points, and an object of the present invention is to prevent busy tone from being transmitted when a private extension is vacant during multi-line operation. An object of the present invention is to provide a multi-line extension transfer system capable of transmitting a busy tone when busy.

[0010]

In order to solve the above problems and achieve the object, the present invention has the following constitution. FIG. 1 shows the principle of the present invention. According to the present invention, by connecting a terminal 2 and a plurality of extension terminals 4 to a network 1, and allocating a plurality of extension terminals to own extension buttons and other extension buttons provided on each extension terminal 4 respectively. In the multi-line system in which a plurality of extension terminals are used as the extension terminals, the storage means 2
2, an extension number reading means 12 and a connection control means 14.

The storage means 22 stores, for each extension terminal, the extension numbers of the plurality of extension terminals that are assigned in correspondence with the button information of the own extension button and the other extension button. The extension number reading means 12 receives the extension terminal information and operation button information from the extension terminal when the other extension button which is arriving at the extension terminal which has responded to the call from the terminal 2 to the other extension terminal is operated. The other extension number corresponding to is read from the storage means 22.

The connection control means 14 determines whether or not the extension terminal corresponding to the other extension number read by the extension number reading means 12 is busy, and if the extension terminal is busy, the extension call is made. The line connection of the network 1 is controlled so that the call of the terminal is stopped and the answer extension terminal receives the call.

The present invention further comprises a storage unit 22, an extension number reading unit 12, and a connection control unit 14. Storage means 2
2 stores, for each extension terminal, the extension numbers of the plurality of extension terminals assigned in correspondence with the button information of the own extension button and the other extension button.

The extension number reading means 12 operates the extension terminal information and the response from the extension terminal when the extension button on hold is operated in the extension terminal which responded to the call held from the terminal 2 to the other extension terminal. The other extension number corresponding to the button information is read from the storage means 22.

The connection control means 14 determines whether or not the extension terminal corresponding to the other extension number read by the extension number reading means 12 is on hold, and when the extension terminal is on hold, the hold is held. The line connection of the network 1 is controlled so that the extension is set to the idle state and the answer extension terminal receives the call.

Further, a plurality of line processors 6 for displaying the above-mentioned lamps are provided between the respective extension terminals 4 and the network 1, and when the connection control means 14 controls the response extension terminal to receive a call. In addition, a line processor control unit 15 may be provided for controlling the line processor 6 corresponding to the answer extension terminal to display the own extension button in a lamp.

Here, the storage means 22 is, for example, a main storage device, an auxiliary storage device (for example, a hard disk or a floppy disk), and a management table for storing information in such a storage device. It may be provided.

Extension number reading means 12 and connection control means 14
Examples of the processor include a central processing unit (CPU) and a call processor.

[0019]

According to the present invention, first, the extension numbers of a plurality of extension terminals assigned corresponding to the button information of the own extension button and the other extension button are stored in the storage means 22 for each extension terminal. .

When the extension terminal responds to the call from the terminal 2 to the other extension terminal, the extension number reading means 12 causes the extension number reading means 12 to operate the extension button which is receiving the call at the extension terminal which has responded. The other extension number corresponding to the response extension terminal information and the operation button information is read from the storage means 22.

Further, the connection control means 14 determines whether the extension terminal corresponding to the other extension number read by the extension number reading means 12 is calling. Here, when the extension terminal is calling, the connection control means 14 controls the line connection of the network 1 so that the call of the calling extension terminal is stopped and the answer extension terminal receives the call.

Therefore, the busy tone is not transmitted when the extension is free, and the busy tone can be transmitted when the busy line is busy. Further, when the extension terminal responds to the call held from the terminal 2 to the other extension terminal, when the extension button which is on hold is operated on the extension terminal which responded, the extension number reading means 12 causes the extension number reading means 12 to The other extension number corresponding to the response extension terminal information and the operation button information is read from the storage means 22.

The connection control means 14 determines whether or not the extension terminal corresponding to the other extension number read by the extension number reading means 12 is on hold. Here, if the extension terminal is on hold, the connection control means 14 controls the line connection of the network 1 so that the hold extension is made idle and the answer extension terminal receives the call.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A multi-line extension transfer system according to the present invention will be described below. FIG. 2 is a configuration block diagram of an embodiment of a multi-line system for realizing the multi-line extension transfer system according to the present invention. <Structure of Embodiment> Referring to FIG. 2, the multi-line system includes a network for controlling a line connection by a path between a telephone set 2 that is called by a dial number and one of the two extension telephone sets 4-0 and 4-1. -Ku 1 is provided. A trunk circuit 3 (or a line circuit) is connected to the network 1, and a telephone 2 as a terminal device is connected to the trunk circuit 3. Further, the network 1 is connected to two digital extension line circuits 5-0 and 5-1 forming a multiline group. This digital extension line circuit 5-0, 5
The corresponding extension telephones 4-0 and 4-1 are connected to -1.

As shown in FIGS. 5 and 7, each of the extension telephones is provided with a self-extension button and another extension button. Two extension telephones are provided with each extension telephone and another extension telephone button. Assigned to the extension button. The buttons with the same extension number on each extension telephone are commonly connected, and even if there is an incoming call to another extension, the incoming call is answered.

Each digital extension line circuit 5-
Reference numerals 0 and 5-1 have line processors 6-0 and 6-1 in which the extension telephones form a multiline. The line processors 6-0 and 6-1 display the buttons in a lamp and input the button press information and the operation terminal information pressed by the terminal state operation information extension telephone to perform central control via the network 1. It is controlled to send to the device 10.

A central controller 10 for controlling the network 1 is connected to the network 1. The central control device 10 includes an extension state determination unit 11, a button information analysis unit 12, a call determination unit 13, a connection control unit 14, and a line processor control unit 1.
5, it has a hold determination unit 16. Extension state determination unit 11
Determines whether the extension of the respondent's own line is empty. The button information analysis unit 12 analyzes the button information and the extension terminal information output from the line processors 6-0 and 6-1. The call determination unit 13 determines whether or not the extension telephone set corresponding to the extension number output from the multi-line extension data table 22 described later is calling.

When the call judging unit 13 judges that the extension telephone is calling, the connection control unit 14 connects the path to the self-extension of the handler, stops the call of the called extension, and answers the call. Make a call to your own extension.

The line processor control unit 15 controls the line processors 6-0 and 6-1 to display their own extension buttons or other extension buttons by lamps. The hold determination unit 16 determines whether the corresponding extension telephone is on hold.

A main memory 20 is connected to the central controller 10. The main memory 20 has a multiline extension data table 22. FIG. 3 shows the contents of the multiline extension data table 22. The multi-line extension data table 22 stores the extension numbers of a plurality of extension terminals assigned corresponding to the button information of the own extension button and the other extension button for each extension terminal. <Process of Embodiment> (1) Response to Other Extension Call FIG. 4 is a process flow of a response to another extension call of the embodiment. FIG. 5 is a diagram for explaining a response to another extension call. Next, a process of responding to another extension call in the multi-line extension transfer system of the embodiment will be described with reference to the drawings. Here, for example, a case will be described in which a telephone with extension number 100 responds to an incoming call with extension number 101.

In multi-line operation, if 101 is dialed from the telephone 2 as the dial number, the extension number 10 is sent to the network 1 via the line trunk circuit 3.
The call to 1 arrives (step 201). Then, the network 1 uses the extension number 101 for the extension telephone 4
The path P1 is set for -1.

The digital extension line circuit 5-
In the line processor 6-1 in 1, the extension telephone 4-1
The extension button 41-0 corresponding to the number 101 is displayed by a lamp (shown in FIG. 5). Further, the line processor 6-0 in the line circuit 5-0 for digital extension displays the other extension button 40-1 corresponding to the number 101 of the telephone number 4-0 of the extension number 100 as a lamp. Further, the responder of the telephone set 4-0 raises the handset 60 to answer the incoming call, and presses the extension button 40-1 being called (step 20).
2).

Then, the extension telephone 4-0 sends the extension operating terminal information (extension number 100) and the button information (button number 1) to the line processor 6-0, and the line processor 6-0.
Then, the information is sent to the central control unit 10 via the network 1 (step 203).

Then, in the central controller 10, the extension state determination unit 11 first determines whether or not the extension of the responder's own extension is idle (step 204). If the extension of the responder's own line is not available, it is ignored (step 205).

Next, the button information analysis unit 12 analyzes the button information and the operation terminal information of the telephone for each telephone, and refers to the multiline extension data table 22 in the main storage device 20 to extend the extension. The extension number 101 corresponding to the button information (button number 1) on the telephone number 100 is read (step 206).

Next, in the call judging section 13, the extension number 10
It is determined whether the No. 1 telephone is ringing (step 207). Here, when the call determination unit 13 determines that the telephone is ringing, the connection control unit 14
Then, by controlling the network 1 to establish the path P0, the incoming call is connected to the extension number 100 of the answering party, the calling of the called extension is stopped, and the incoming call is made to the extension number of the answering person (step). 208).

At this time, the line processor controller 15 instructs the extension telephone 4-1 to the line processor 6-1.
The other extension button 41-1 corresponding to the number 100 is controlled to be displayed by a lamp. In addition, the line processor control unit 15
Then, the extension telephone 4-for the line processor 6-0
The other extension button 40-0 corresponding to the number 100 of 0 is controlled to be displayed as a lamp. By doing so, it becomes as shown in FIG.

Therefore, the busy tone is not transmitted when the extension is free, and the busy tone can be transmitted when the busy line is busy. (2) Response to a call held on another extension FIG. 6 is a processing flow of a response to a call held on another extension in the embodiment. FIG. 7 is a diagram for explaining a response to a call held on another extension. Next, with reference to the drawings, a process of responding to a call held on another extension in the multi-line extension transfer method of the embodiment will be described. Here, for example, 101
A case where the telephone number 100 answers the call held on the other extension of No. 100 will be described.

First, 1 is set as a dial number from the telephone 2.
When 01 is dialed, a call to the extension number 101 arrives at the network 1 via the line trunk circuit 3 (step 301). Then, the network 1 establishes a path P1 to the extension telephone set 4-1 by the extension number 101.

The digital extension line circuit 5-
In the line processor 6-1 in 1, the extension telephone 4-1
The extension button 41-0 corresponding to the number 101 is displayed by a lamp (shown in FIG. 7). Further, the line processor 6-0 in the line circuit 5-0 for digital extension displays the other extension button 40-1 corresponding to the number 101 of the telephone number 4-0 of the extension number 100 as a lamp. Further, the responder of the telephone set 4-0 raises the handset 60 to respond to the hold call, and presses the extension button 40-1 on hold (step 302).

Then, the extension telephone 4-0 sends the extension operating terminal information (extension number 100) and the button information (button number 1) to the line processor 6-0, and the line processor 6-0.
Then, the information is sent to the central controller 10 via the network 1 (step 303).

Then, in the central controller 10, the extension state determination unit 11 first determines whether or not the extension of the respondent's own extension is idle (step 304). If the extension of the responder's own line is not available, it is ignored (step 305).

Next, the button information analysis unit 12 analyzes the button information and the operating terminal information of the telephone for each telephone, and refers to the multiline extension data table 22 in the main storage device 20 to extend the extension. The extension number 101 corresponding to the button information (button number 1) on the telephone number 100 is read (step 306).

Next, in the hold judging section 16, the extension number 10
It is determined whether the first telephone is on hold (step 30)
7). If the other extension is not on hold, the busy tone is transmitted (step 308).

On the other hand, when the hold determination unit 16 determines that the telephone is on hold, the connection control unit 14 controls the network 1 to establish the path P0 to answer the hold call. No. 100 extension of No. 100, the holding extension is set to an idle state, and the answerer's own extension is called (step 309).

At this time, the line processor control section 15 instructs the extension telephone 4-1 to the line processor 6-1.
The other extension button 41-1 corresponding to the number 100 is controlled to be displayed by a lamp. In addition, the line processor control unit 15
Then, the extension telephone 4-for the line processor 6-0
The other extension button 40-0 corresponding to the number 100 of 0 is controlled to be displayed as a lamp. By doing so, it becomes as shown in FIG.

Therefore, the busy tone is not transmitted when the own extension is empty, and the busy tone can be transmitted when the busy line is busy.

[0048]

According to the present invention, even in a multi-line operation, a ring tone is given to an incoming call while a call is in progress or a call to an own extension even when the telephone is idle. Will never be returned. Easy transfer operation can be performed.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a configuration block diagram of an embodiment of the present invention.

FIG. 3 is a diagram showing the contents of multiline extension data table.

FIG. 4 is a flow chart of processing of a response to another extension call according to the embodiment.
Is.

FIG. 5 is a diagram for explaining a response to another extension call.

FIG. 6 is a processing flow of a response to a call held on another extension.

FIG. 7 is a diagram for explaining a response to a call held on another extension.

FIG. 8 is a diagram showing a configuration of a multi-line service.

FIG. 9 is a diagram showing an example of a conventional multi-line extension transfer system.

[Explanation of symbols]

 1 ... Network 2 ... Telephone 3 ... Trunk circuit 4-0, 4-1 ... Extension telephone 5-0, 5-1 ... Digital extension line circuit 6-0, 6-1 ... Line Processor 10 Central control unit 11 Extension state determination unit 12 Button information analysis unit 13 Call determination unit 14 Connection control unit 15 Line processor control unit 16 Hold determination unit 20 Main Storage device 22..multi-line extension data table 40,41..button 60..handset

Claims (3)

[Claims] 1. A terminal (2) and a plurality of extension terminals (4) are connected to a network (1), and a plurality of extension terminals are attached to each extension terminal (4) and an own extension button and the like are provided. In a multi-line system in which a plurality of extension terminals are used in each extension terminal by allocating to extension buttons, the extension numbers of the assigned extension terminals corresponding to the button information of the own extension button and other extension buttons A storage unit (22) for storing each extension terminal, and an extension terminal which is responsive to a call from the terminal (2) to another extension terminal when the other extension button being called is operated. Extension number reading means (12) for reading the other extension number corresponding to the extension terminal information and the operation button information from the storage means (22), and the other extension read by the extension number reading means (12). Extension corresponding to the number It is determined whether or not the terminal is ringing, and when the extension terminal is ringing, the call of the calling extension terminal is stopped and the line connection of the network (1) is controlled so that the answer extension terminal receives the call. And a connection control means (14) for performing the multi-line extension transfer method. 2. A terminal (2) and a plurality of extension terminals (4) are connected to a network (1), and a plurality of extension terminals and own extension buttons and the like provided on each extension terminal (4). In a multi-line system in which a plurality of extension terminals are used in each extension terminal by allocating to extension buttons, the extension numbers of the assigned extension terminals corresponding to the button information of the own extension button and other extension buttons A storage unit (22) for storing each extension terminal, and an extension button operated by an extension button which is held in the extension terminal which responds to a call held from the terminal (2) to another extension terminal. Extension number reading means (12) for reading the other extension number corresponding to the response extension terminal information and the operation button information from the terminal from the storage means (22), and the other number read by the extension number reading means (12) Corresponds to the extension number It is determined whether the extension terminal is on hold, and if the extension terminal is on hold, the hold extension is made idle and the line connection of the network (1) is controlled so that the answer extension terminal receives the call. Connection control means (1
4) The multi-line extension transfer method characterized by comprising: 3. A plurality of line processors (6) according to claim 1 or 2, wherein the buttons are lamp-displayed between the respective extension terminals (4) and the network (1).
And a line processor control section for controlling the line processor (6) corresponding to the answer extension terminal to display the own extension button in a lamp when the connection control means (14) controls the incoming call to the answer extension terminal ( 15) A multi-line extension transfer system characterized by having: