JPH01254052A - Extension number setting system for private branch exchange system - Google Patents

Abstract

PURPOSE:To connect each extension telephone set to a connection terminal and to set a desired extension number after the connection by placing communication between a private branch exchange and a telephone set with an extension number to be provided thereto. CONSTITUTION:Plural extension telephone sets are connected optionally to the connection terminal of a private branch exchange(PBX) 2 and an extension number is set for each extension telephone set by the communication between a DTMF(Dual Tone Multi Frequency) signal from each extension telephone set and a reply signal from the private branch exchange 2 to each extension telephone set. Thus, each extension telephone set at the installation of the extension telephone set is connected to an optionally connection terminal without being designated with the connection terminal of the PBX 2 and the connection and installation are facilitated. Furthermore, the extension number is revised easily and the extension number is revised attended with a person whose seat is moved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for setting extension numbers of iU number of extension telephones connected to a private branch exchange.

[Conventional technology] In companies and offices, private branch exchanges (PRIVATE BRAN) connected to lines from telephone offices (office lines), etc.
A telephone exchange system is generally used in which a plurality of extension telephones are connected to a CHEXCHANGE, and these extension telephones are exchanged with each other and connected with external subscribers.

Conventionally, in such telephone exchange systems, it is necessary to attach an extension number of a predetermined number of digits to each extension telephone in order to connect a specific extension telephone with a central office line and to connect with other extension telephones. There is.

Fig. 3 is a diagram for explaining the method of setting the extension number of a conventional extension telephone. (1) shows a business office where the telephone is installed, and a PBX (2) is installed inside. A central office line (3) is connected to this PBX (2).

A plurality of extension telephones (4) are connected to r'BX (2), but in this example, three extension telephones (4a), (
4b) and (4c) are installed.

The setting of the extension number of each extension telephone (4) is determined when each extension telephone is connected to each connection terminal of the PBX (2) at the time of installation. That is, for the extension telephone (4a) connected to the connection terminal (5a) of the PBX (2), the number assigned in advance to the connection terminal (5a) of the PBX (2) is set as the extension number. Same <PBX (2)
The extension number of the extension telephone (4b) connected to the connection terminal (5b) is set by the number assigned to the connection terminal (5b), and the extension number of the extension telephone (4c) connected to the connection terminal (5c) is set in the same manner. is set to that extension number.

[Problems to be Solved by the Invention] 1. According to the conventional extension number setting method, when installing a telephone, when determining and connecting the extension number of each extension telephone (4), it is necessary to specify the extension number. PBX corresponding to the number
It is necessary to select the connection terminal (5) in (2) and perform the connection work, and similarly connect the other extension telephones (4) to the connection terminals (5) corresponding to the designated numbers. There is a need. Therefore, there is a problem in that the connection work when installing the telephone becomes complicated, and furthermore, the work of checking whether each extension telephone is connected to the designated connection terminal becomes complicated.

One aspect of the invention The present invention has been made in view of the above problems, and it is an object of the present invention to provide an extension number setting method for a private branch exchange that allows easy extension number setting and confirmation work when installing an extension telephone.

[Means for Solving the Problems] In order to achieve the above object, the extension number setting method of the local telephone system according to the present invention includes a step of placing the telephone to which the extension number is to be set in an off-hook state (the handset is lifted). and a step of transmitting a response signal from the private branch exchange that has detected the off-hook state of the telephone to which the extension number is to be set, indicating that the telephone is in a communicable state."2 (114)
DTM from the telephone after receiving a response signal from the local exchange
F signal (Dual Tone Multi Frequency
a step of transmitting an extension number setting request signal, which is an extension number setting request signal); and a step of transmitting an extension number setting completion signal from the private branch exchange to the telephone after receiving the extension number setting request signal described in 1 above. , This extension number reception involves the step of transmitting the extension number signal to be set as a DTMF' signal from the telephone to the ++17 internal exchange after receiving the readiness signal, and the reception of this extension number signal by the private branch exchange that received this extension number signal. Setting 11: Checks whether there is any problem with the extension number, and if there is no problem, sends a number setting end signal to the telephone after performing the number setting operation, and if there is any problem, notifies the user to that effect. The method is characterized in that it includes a step of transmitting a rejection signal.

[Operation] After arbitrarily connecting multiple extension telephones to the connection terminals of a private branch exchange, the extension number is determined for each extension telephone by communicating the DTMF signal from each extension telephone and the corresponding signal from the private branch exchange to each extension telephone. can be set.

As a result, each extension telephone can be connected to an arbitrary connection terminal without specifying the connection terminal of the PBX when installing the extension telephone, and the connection and installation work becomes easy.

Furthermore, the extension number can be easily changed by the same communication operation between the private branch exchange and each extension telephone when setting the extension number, and as the person moves, the extension number can be changed by following the person. can be changed.

[Embodiments] Preferred embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a timing chart showing each step of the extension number setting method of the present invention, and FIG. 2 is a block diagram showing a schematic configuration of a PBX (2). First, PB shown in Figure 2
The configuration of X (2) will be explained. (6) is a terminal interface, which is connected to each extension telephone.

(7) is a switch matrix connected to the terminal interface (6) in item 1, and further includes a tone generation circuit (
8) A DTMF transmitting/receiving circuit (9) and a central office line interface (10) are connected.

(11) is a CPU, which is connected to the switch matrix (7) via the switch control circuit (12), and connected to the tone generation circuit (8), D via the block control circuit (13).
TMF transmitter/receiver circuit (9) and office line interface (1)
0), and further connected to the terminal interface (6) via the block control circuit (3). This CPU (11) controls each component of the PBX (2) based on signals from each extension telephone. (14) is memory and CPU
It stores each extension number set based on the signal from (11).

Next, we will explain the operation of the embodiment using the timing chart shown in Figure 1.・This will be explained in correspondence with the configuration diagram of PBX (2) in Figure 2 and Figure 2.

First, among the extension telephones, which are a plurality of bush type telephones connected to the PBX (2), the receiver of the telephone (4a) to which an extension number is to be set is lifted up and placed in an off-hook state (Sl). This process is shown in the block diagram of Fig. 2. The off-hook state of the extension telephone is connected to the terminal interface (6) of the PBX (2) as the DC circuit is closed.
The terminal interface (6) notifies the CPU (11) of the off-hook state of the extension telephone (4a) via the block control circuit (13).

Next, the PBX (2) performs a step of sending a response signal indicating that communication is possible to the extension telephone aft (4a) (S2). This signal uses a 400 Hz continuous signal. The operation in the PBX (2) in this process is such that a predetermined signal is sent from the CPU (11) that has been notified of the off-hook state to the block control circuit (13).
3), a tone generation instruction signal is sent to the tone generation circuit (8). Further, an instruction signal is sent from the CPU (11) to the switch matrix (7) through the switch control circuit (12), and the terminal interface (6) accommodating the extension, the tone generation circuit (8), and the DT MF transmitting/receiving circuit (9) ) are connected. Thereby, the tone generating circuit (8) sends a continuous signal of 400 Hz as a response signal to the extension telephone (4a) via the switch matrix (7).

Next, after receiving this response signal, the extension telephone (4a)
A step is performed in which a DTMF signal indicating a request for setting an extension number is supplied to the PBX (2) by operating the button (S3). This DTMF signal is sent by pressing the button *0#.

The operation within the PBX (2) is such that this extension number setting request signal is sent to the DTMF transmitting/receiving circuit (9) via the terminal interface (6) and switch matrix (7), where the numbers and symbol codes (*, 0 , #) after being converted to
It is sent to the CPU (11) via the block control circuit (13).

In response, the PBX (2) performs a process of inserting the extension number into the extension telephone (4a) and transmitting a preparation completion signal (S
4). That is, the operation within the PBX (2) is such that a predetermined signal is sent from the CPU (11) that receives the extension number setting request signal to the block control circuit (13).
3) sends a control signal to the tone generating circuit (8), and based on this, the tone generating circuit (8) accepts the extension number and sends it as a ready signal via the switch matrix (7) and the terminal interface (6). 40 on extension phone (4a)
Sends a 0Hz intermittent signal tone.

Next, the extension telephone (4a) which receives the extension number acceptance or ready signal performs a step of sending a DTMF signal indicating the extension number desired to be set to the PBX (2) by operating the button (S5). For example, to set the extension number to 213, press the button 213#.

The operation within the PBX (2) in this process is the extension telephone (
4a) to the extension number signal from the terminal interface (6)
and is sent to the DTMF transmitting/receiving circuit (9) via the switch matrix (7), where it is converted into numbers and symbol codes, and then sent to the CPU (11) via the block control circuit (13). An extension number signal is sent.

Upon reception of this extension number signal, PBX (2):
Check whether there are any problems with the received setting number. In other words, determine whether the set number is not the same as an extension number that has already been set, or whether the number of digits and type of numbers in the set number are appropriate, and if there is no problem,
Set the extension number, and send the number setting completion signal to the extension telephone (
4a). If there is any inconvenience, a step of transmitting a setting rejection signal to extension telephone n (4a) is performed (SO).

The operation in the PBX (2) in this step is that the CPU (11) that receives the extension number signal compares the registered extension number stored in the memory (14) with the extension number to be set, and If there is no number and the number of digits and type of numbers of the extension number to be set are appropriate, that number is set in the memory (14) as a new extension number. Then, a control signal is sent to the tone generation circuit (8) via the block control circuit (13), and the tone generation circuit (8) sends a setting end signal to the extension telephone via the switch matrix (7) and the terminal interface (6). (4a) to 1800)I
Send continuous signal tone of z.

Also, if the extension number to be set already exists, or if the number of digits or the type of numbers in the extension number is inappropriate (for example, if the number of digits is set to 3, but 4 digits such as 2130,
(If a digit number is entered, or if the first digit is set to be a number other than 0, such as 0213),
Without registration, the tone generating circuit (8) similarly sends an intermittent signal tone of 2100 Hz to the extension telephone (4a) as a setting rejection signal.

The setting of the extension number is completed when the setting completion signal is sent to the extension telephone, and by returning the receiver of the extension telephone (4a) and putting it on-hook, the extension telephone (4a) and PBX (2) can be connected. The period between is a DC open state.

If a setting rejection signal is sent to the extension telephone (4a), consider changing the extension number again by going on-hook and repeating steps (Sl) to (SO) again, or send a setting rejection signal. It is also possible to specify another extension number and send it to PBx (2) at the stage of receiving it. That is, by operating the button for another number 214#, it is possible to perform the extension number setting operation again from step (S5).

According to the above embodiment, the PBX (
After connecting to PBX (2) arbitrarily without setting connection terminals, the extension number of each extension telephone (4) can be freely set by communicating with PBX (2) by operating push buttons. .

Furthermore, when changing the extension number of an extension telephone, a new number can be set by the same operation.

In this case, when exchanging extension numbers due to changes in seats, etc., it is necessary to first delete one of the extension numbers from memory (14) in order to avoid double registration in CPU (11). .

Therefore, first, delete the number of one of the extension telephones by pressing the ## button at step (S5), and then set the deleted number on the other telephone. Extension numbers can be easily exchanged when moving. Therefore, since the extension number can be made to follow the person who moves from one seat to another, there is no need to change the extension number of the person who moves.

Note that when an extension number setting operation is performed between (Sl) and (S[i') for an extension telephone that has already been set, the CPU (11) switches the extension number to a new number and registers it. It is something to do.

[Effects of the Invention] As explained above, according to the extension number setting method of the private telephone system according to the present invention, each extension telephone is connected to the designated connection terminal of the 11-unit exchange when installing the extension telephone. without any complicated work,
Connection can be made arbitrarily, and a desired extension number can be set after connection. This simplifies the work of installing the extension telephone, and also simplifies the work of checking connections.

Furthermore, even if the extension telephone user moves his or her seat, it is possible to easily change the extension number of the extension telephone itself.

[Brief explanation of the drawing]

Fig. 1 is a timing chart diagram of a preferred embodiment of the present invention, Fig. 2 is a block diagram showing a schematic configuration of an internal exchange (1) of the embodiment, and Fig. 3 is an explanatory diagram showing the installation of a conventional extension telephone. (2) is PBX, (4) is extension telephone, (6) is terminal interface, (7) is switch matrix, (8)
is a tone generation circuit, (9) is a DTMF' transmitting/receiving circuit, (
11) is the cPU, and (14) is the memory. In the figures, the same elements are given the same reference numerals.

Claims (1)

[Claims] (1) In a method for setting each extension number of a private telephone system in which a plurality of extension telephones that transmit DTMF signals are connected to a private branch exchange, the step of setting the extension telephone to which the extension number is to be set is in an off-hook state; A step in which a private branch exchange that detects an off-hook state of an extension telephone transmits a response signal indicating a communication ready state to the telephone; and after receiving the response signal from the private branch exchange, the extension number is set as a DTMF signal from the extension telephone to the private branch exchange. a step of transmitting a request signal; a step of transmitting an extension number acceptance ready signal from a private branch exchange to the telephone after receiving an extension number setting request signal from the extension telephone; and a step of receiving an extension number acceptance ready signal from the private branch exchange. After that, there is a step of transmitting an extension number signal to be set, which is a DTMF signal, from the extension telephone to a private branch exchange, and a step in which the private branch exchange that has received the extension number signal from the extension telephone determines that there is no problem with the received extension number. After checking if there is no problem and setting the number if there is no problem,
An extension number setting method for a private telephone system, comprising the steps of: transmitting a number setting completion signal from a private branch exchange to the telephone; and, if there is any inconvenience, transmitting a setting rejection signal to notify that fact.