JPS61166295A - Electronic telephone exchange system - Google Patents

Abstract

PURPOSE:To convert dial number data input prescribed number data based on data stored in a storage means by providing the storage means in which number of digits of dial number data to be deleted and number data to be supplemented are stored in response to the dial number data obtained through a trunk line. CONSTITUTION:When dial number data is sent to a trunk line from a station exchange, a central controller CC confirms that a trunk circuit TRK connected to the trunk line incoming with the dial number data is connected to the trunk line adopted for the individual incoming system based on data in a memory MRY and searches data in the memory MRY1 by using the incoming dial number data as a key. When the corresponding dial number data exists in the memory MR1, the deleted digit number data in a memory MR2 corresponding to the dial number data is read and the data is deleted from the high-order digit of the said dial number data by the number of digits. Then supplement number data in a memory MR3 corresponding to the incoming dial number data is read and the supplemented number data is supplemented.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to improvements in electronic telephone exchange systems such as private branch exchanges and key telephone devices, and more specifically, the invention relates to improvements in electronic telephone exchange systems such as private branch exchanges and key telephone devices, and more specifically, to improve the ability to receive individual calls (direct in-line, dial-in, etc.) on multiple central office lines. This paper relates to improvements to the electronic telephone switching system that employs a system called

[Technical Background of the Invention] In a conventional private branch exchange, when dial number data is sent from the central office to a central office line in which the individual call termination method is adopted, the data is processed as shown in FIG.

There are office lines C101 to ClO3 that should adopt the individual call reception method, and the dial number data shown in the figure is sent to each of them from the central office exchange. In this case, the private branch exchange deletes numbers with the same number of digits (eg, 2 digits) from the dial number data and replaces them with the same number (eg, "22"). The number data obtained in this way is used as an extension number to send a call to a desired extension telephone (terminal).

[Problems with the Background Art] However, in the example shown in FIG. 5, the extension number can be converted to a 3-digit extension number for the office line C101, but it becomes a 2-digit extension number for the office line ClO2, and it is converted to a 4-digit extension number for the office line ClO3 to ClO3. number. Therefore, in a system where the extension number is 3 digits,
The office lines ClO2 to ClO3 are not suitable as office lines that employ the individual call reception method. Further, even if it is possible to convert to a three-digit extension number using the above method, it is not necessarily possible to convert it to the desired extension number.

Therefore, in these conventional private branch exchanges, it is not possible to adopt the individual call termination method for the desired number of central office lines, or it is not possible to match the extension telephone of the desired extension number with the central office line of the individual call termination method. As a result, the allocation of extension numbers within the system could not be planned properly.

[Object of the Invention] The present invention has been made in view of the above-mentioned drawbacks of the conventional electronic telephone exchange system, and its purpose is to provide a system that can be used regardless of the dial number data sent from the central office exchange.
It is an object of the present invention to provide an electronic telephone switching system that allows exchange to a desired extension number and appropriately plans the allocation of extension numbers within the system.

U Overview of the Invention] Therefore, in the present invention, for each office line that adopts the individual call reception method,
A storage means is provided in which the number of digits of the dial number data to be deleted and data of the number to be supplemented are stored corresponding to the dial number ° data obtained via the central office line, and the data stored in the storage means is provided. The above object is achieved by converting the dial number data into predetermined number data based on the above.

[Embodiments of the Invention] In FIG. 1, 1 indicates a private branch exchange. This private branch exchange 1 includes a switch circuit SW, a line circuit L Co□
l C-rb, trunk circuit TRKcr-TRK,
, outgoing registers ORo to ORe, central controller CC,
Memory MRY, MRI~MR3, tone ringer circuit RG
is equipped. Line circuit] -Co~LC-
Extension telephone T. ~T, are connected.

The central controller CC controls the switch circuit SW based on the control program in the memory MRY and the data in the memories MRY, MRI to MR3, and controls the line circuits LC, to
LC and Φ are connected to each other to enable extension calls, and line circuits L Co to IC, and trunk circuits TRK,...
~TRK1 is connected to enable central office line communication. Also,
The central controller CC similarly controls the outgoing registers OR, ~
ORe, controls the switch circuit SW, and connects the trunk circuit T.
RK, -TRIQ)X sends out the dial number data, and further controls the tone ringer circuit RCT to send the tone to the extension telephone T via the line circuits 1-C, -ICJ. −■, send to.

In the above configuration, the memory MRY stores a control program and data other than conversion data regarding individual call reception. The memory MRI stores the dial number data transmitted from the central office exchange to the central office line adopting the individual call termination method, and the memory MR2 indicates the number of digits to be deleted corresponding to each of the above dial number data. Data is stored in the memory MR3 corresponding to each of the above dial number data. Data indicating the number to be filled is stored.

FIG. 2 shows the contents of the memories MRI to MR3, and the dial number data transmitted from the central office exchange is the same as in the case of FIG.

When data 0 is recorded in the memories MRI to MR3, the central control unit CC records data indicating whether or not there is a station line that uses the individual call reception method, the dial number data to be input, the number of digits to be deleted, and the supplementary number. is normal or not, memory M
Check whether there is an empty area in RI to MR3 based on the data in the memory MRY and the status of the memories MRI to MR3,
Register only when it's worth it. A flowchart of this operation is shown in FIG. Note that each registration data is input using a keyboard device or the like used to set operational data of the system of the private branch exchange 1.

Further, when dial number data is sent from the central office exchange to the central office line while the system is in operation, the central control unit CC operates as follows. The trunk circuit TRK, which is connected to the office line from which the dialed number data has arrived, confirms based on the data in the memory MRY that it is connected to the office line that uses the individual call reception method, and then receives the received dialed number data. A search is performed in the memory MRI using the key. If the corresponding dial number data is in the memory MR1, the number of deleted digits data in the memory MR2 associated with this dial number data is read out and the number of digits (
Delete data from the upper digits of the above dial number data. Next, the replenishment number data in the memory MR3 associated with the incoming dial number data is read out, and the replenishment number data is refilled. This operation is shown in FIG. 4. By the operation of the central controller CC, the dial number data shown in the memory MRI of FIG. 2 is finally converted into all three-digit extension number data. In other words,
In this example, dial number data r774J, r83J
r5000J r5001 Jr5002J have extension numbers 7' and 224i.

r223J, r220J, r221J r222J, indicating that extension telephones with extension numbers r220J to r224J can be assigned for individual incoming calls.

Note that the memory MRY and the memories MRI to MR3 do not necessarily need to be divided memories.

[Effects of the Invention] As explained above, according to the present invention, the number of deleted digits and the supplementary number are variable, and no matter what kind of dial number data is transmitted from the central office exchange, the number of digits to be deleted and the number of supplementary numbers can be changed. Since the conversion into numbers can be performed reliably, it is possible to appropriately allocate numbers to terminals within the system as desired by the user. In addition, even if the dial number is changed at a later date (particularly the number of digits), it is only necessary to change the data in the storage means, compared to the case where the number of digits to be deleted and the number of replenishment numbers are determined in advance. The system can be operated flexibly.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 3 is a block diagram showing the main parts in detail, FIG. 3 is a flowchart for explaining the operation of an embodiment of the present invention, and FIG. 5 is a diagram for explaining a conventional example. 1.-Yokonai switchboard CC...central control unit MRY,
MRI~MR3...Memory SW...Switch circuit L Co"L C5-Line circuit T RK, p T RK...Trunk circuit agent Patent attorney Book 1) Takata Kei 1 Naka Figure 3 special Kaisho Gl-IGG295 (5) Fig. 4

Claims (1)

[Claims] In an electronic telephone switching system having a plurality of terminals and adopting an individual call termination method for at least one office line, dialing number data obtained via the office line for each office line adopting the individual call reception method. In response to this, a storage means is provided in which the number of digits of the dial number data to be deleted and data of the number to be supplemented are stored, and the dial number data is stored in a predetermined manner based on the data stored in this storage means. An electronic telephone switching system characterized by converting into terminal number data.