JPH05260544A - Office line operating system in telephone exchange - Google Patents

Abstract

PURPOSE:To improve operability by attaching a function of direct line service on a system of dial-in service in an office line operating system in a telephone exchange. CONSTITUTION:This system is equipped with an office trunk 20 connected to a line, a PB reception part 21 which receives a PB signal from the line via the office trunk 20, a private branch exchange 10, and plural private telephone sets 22 connected to the private branch exchange 10. A table 11 which conforms a subscriber number, an extension number, and a button number with each other is provided in the private branch exchange 10, and when a dial-in incoming call is received, the private branch exchange 10 puts on a corresponding button number lamp at every private telephone set 22 by referring to the table 11, and also, rings the telephone set 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an office line operation system in a telephone exchange. More specifically, it relates to a method of operating the NTT dial-in service supported by the telephone exchange system. Since the dial-in service can obtain multiple direct numbers with one contract line, the number of outside lines can be reduced and it is economical, so the number of users is increasing. Along with that, usability like a button telephone is also required.

[0002]

2. Description of the Related Art FIG. 6 is a conceptual diagram of the configuration of a conventional system. In the figure, 1 is a station (NW), 2 is a plurality of telephones connected to the station 1, and 3 is also a plurality of telephones connected to the station 1. Reference numeral 10 is a private branch exchange (PBX) which is a main unit connected to the station 1. A plurality of telephones 4 are connected to the private branch exchange 10. The telephone 4 connected to the private branch exchange 10 is a standard telephone (a telephone connected one line to one line) or a dedicated telephone (a telephone that can be used only in the private branch exchange).

In this type of system, a dial-in service is often used. The dial-in service is a system that assigns a plurality of direct numbers to one line. FIG. 7 is an explanatory diagram of the dial-in service.
As shown in the figure, a plurality of direct line numbers are assigned to one line 5. For example, 777-1111 to 777-111
Assign up to 5. And 777-1111 to 7
If you receive a telephone number from 77-1115, station 1
Informs private branch exchange 10 via line 5. The private branch exchange 10 uses the subscriber number (P
It recognizes the B number) and connects to the designated telephone set 4.

In order to enable such a service, it is necessary to make a contract with a telephone company (for example, NTT) in advance. That is, the telephone company is requested to connect to the private branch exchange 10 using the common line 5 for the subscriber number designated in advance. Private branch exchange 1
For 0, the distribution work for connecting to the telephone set 4 corresponding to the incoming PB number may be performed. This dial-in service is available for multiple telephones 2 or 3 to 777-11 at the same time.
Calls from 11 to 777-1115 cannot be processed. Therefore, as for the number of subscriber numbers that can be used, it is necessary to determine in advance the optimum number from the traffic volume.

Here, when an incoming call arrives from the line to the private branch exchange 10, if the extension number in the private branch has only three digits, for example, and the subscriber number (PB number) is four digits, the private branch exchange 10 uses the subscriber number. Do the conversion. The conversion method has a conversion format such as 1111 → 200 1112 → 201 1113 → 202.

FIG. 8 is a flowchart showing the operation of the conventional system. When there is a dial-in call, the private branch exchange 10 receives the dial-in subscriber number (S1). Then, the subscriber number corresponding block number is extracted based on the received subscriber number (S2). In this type of system, it is blocked for each extension number,
It is necessary to extract the block number to which the subscriber number concerned belongs. After the block number is extracted, the extension number corresponding to the subscriber number is extracted (S3).

When the extension number is extracted, it is checked whether the telephone corresponding to the extension number is a standard telephone or a dedicated telephone (S4). The private branch exchange 10 has a built-in extension number and information indicating whether the extension number is a dedicated telephone or a standard telephone. Therefore, it can be confirmed whether the extension is a standard telephone or a dedicated telephone.

If the telephone is a standard telephone, a ringing request is made (S5). If the telephone is a dedicated telephone, an incoming call request is issued to the corresponding extension button (S6), and then a ringing request is made (S7). This causes the corresponding telephone to ring.

[0009]

In the above-mentioned conventional dial-in operation method, regardless of whether the dial-in subscriber number from the station 1 is converted or not, it is recognized as all extension numbers within the own system. , I was trying to reach the extension. However, the incoming call is received by the terminal itself if it is a standard telephone, and by the extension button if it is a dedicated telephone. Therefore, the only transfer method after the response is dial transfer (pressing the transfer button or hooking + dial of the transfer destination), which is not convenient.

Also, at the time of making a call, it is necessary to capture the line trunk by a special number such as 0 call, which is also inconvenient.

The present invention has been made in view of the above problems, and provides a station line operation system in a telephone exchange in which a dial-in service system is provided with a direct line service function to improve operability. The purpose is to do.

[0012]

FIG. 1 is a block diagram showing the principle of the present invention. The same parts as those in FIG. 6 are designated by the same reference numerals. In the figure, 20 is an office line trunk connected to the line, 21 is a P from the line via the office line trunk 20.
A PB receiving unit for receiving the B signal, 10 is a private branch exchange (PB
X) 22 are a plurality of dedicated telephones connected to the private branch exchange 10. Reference numeral 37 denotes a plurality of function buttons (hereinafter, simply abbreviated as buttons) provided in the dedicated telephone 22, and 11 denotes a subscriber number, an extension number, and a button number provided in the private branch exchange 10. It is a table to attach.

[0013]

When the dial-in call is received, the private branch exchange 10 refers to the table 11 and calls each dedicated telephone 22
Each time, the corresponding button number lamp is illuminated and the telephone set 22 is made to ring. FIG. 2 is a diagram showing a configuration example of the table 11. In the figure, a subscriber number and corresponding extension numbers and button numbers are stored. For example, even if the subscriber number 1111 is the same, different button numbers can be assigned when the extensions are different. That is, the extension number 200 is assigned the button number 1, and the extension number 201 is assigned the button number 3.

In this way, the dial-in service system can be provided with the function of the direct line service, and the central line operation system in the telephone exchange with improved operability can be provided.

[0015]

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

FIG. 3 is a block diagram showing the configuration of an embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals. In the figure, reference numeral 20 is a station line transformer connected to a line, which is composed of a dial-in control circuit 20a and a station line interface unit (COT). Reference numeral 10 is a private branch exchange (PBX), which is a CPU 1 that performs overall control operations.
2, a main program 13 for operation of a station line operated by the CPU 12, an input / output control unit 1 for input / output control
4 and the network memory 15.
The main program 13 is provided with a table 11 showing the relationship among subscriber numbers, extension numbers and button numbers, and a counter 16 for counting block numbers corresponding to subscriber numbers. Reference numeral 21 is a PB receiver, and 22 is a dedicated telephone.

The dedicated telephone 22 is a network memory 1
A subscriber control circuit 22 that is connected to 5 and performs overall control
a, a ringing circuit 22b for performing control for ringing a bell, a key control circuit 22c for receiving and encoding a key input such as a ten-key pad, and a display control circuit 22d for performing display control of a display.

FIG. 4 is a diagram showing an external configuration example of a dedicated telephone. In the figure, 30 is a handset for transmitting and receiving,
Reference numeral 31 is a display for displaying various information, 32 is a ten-key pad for inputting telephone numbers, extension numbers, etc., and 33 is a function key for realizing various functions.

34 is an extension button, 35 is a hold button, 3
6 is a transfer button. These buttons also serve as display lamps. Reference numeral 37 denotes a plurality of function buttons provided, and the respective buttons are sequentially numbered from 1 as shown in the figure. This function button 37 also serves as a lamp. Although only one dedicated telephone 22 is displayed in FIG. 3, a plurality of telephones are actually connected to the network memory 15. The operation of the circuit thus configured will be described below.

FIG. 5 is a flow chart showing the operation of the system of the present invention. When an incoming call is received by dial-in, the dial-in control circuit 20a operates to enter the subscriber number receiving state (S1). The subscriber number is notified to the main program 11 via the PB receiver 21 via the office line interface unit 20b.

The main program 11 extracts the block number corresponding to the subscriber number (S2). Then, when the block number is extracted, 1 is input to the counter 16 (S
3). Next, the main program 13 searches the table 11 to extract the extension number and the button number corresponding to the received subscriber number (S4). After the extension number and the button number are extracted, the operation for causing the corresponding button of the telephone of the corresponding extension to make an incoming call and ring.

Therefore, the main program 13 uses the input / output control unit 14 to write predetermined information in the corresponding area of the network memory 15 of the corresponding telephone. Next, the main program 13 checks whether the corresponding telephone is a standard telephone or a dedicated telephone (S5). If it is a standard telephone, a ringing request is issued to the ringing circuit (S6).

Next, consider the case where the telephone is a dedicated telephone. The subscriber control circuit 22a communicates with the network memory 15 at regular intervals. Then, from the network memory 15 to the button lamp 37 of the dedicated telephone
When a request to display an incoming call to the device and a ringing request are detected, the control is passed to the key control circuit 22c, the display control circuit 22d, and the ringing circuit 22b.

As a result, the key control circuit 22c illuminates the corresponding button lamp 37 and displays the incoming call (S7).
Further, the ringing control circuit 22b sends a ringing sound (S
8). On the other hand, the display control circuit 22d displays the subscriber number on the display 31 of the telephone. Next, the main program 13 checks whether or not the entire search for the block number is completed (S9), and if so, the process is completed. If not, the content of the counter 16 is incremented by 1 (S10), and the process returns to step S4.

As described above, according to the present invention, the following services are possible. Common hold A dial-in call can be put on hold in the same manner as a common hold of a direct line (one line and one extension phone correspond to each other). Representative processing By registering the subscriber number as a representative, it is possible to make a call to the subscriber number registered as a representative even when the subscriber is in use. Conversation display Turn on the subscriber number button when all lines are in use,
The operator can be notified that a conversation is in progress.

[0026]

As described above in detail, according to the present invention, the button corresponding to the dial-in subscriber number is
Since it has a dedicated telephone, it is possible to provide a service that has dial-in economy while maintaining the usability of a button telephone.

Further, the dial-in service system can be provided with the function of the direct line service, so that it is possible to provide the central line operation system in the telephone exchange in which the operability is improved.

Further, according to the present invention, by changing the program of the main program, there is future expandability for other services.

[Brief description of drawings]

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

FIG. 2 is a diagram showing a configuration example of a table.

FIG. 3 is a configuration block diagram showing an embodiment of the present invention.

FIG. 4 is a diagram illustrating an external configuration example of a dedicated telephone.

FIG. 5 is a flowchart showing the operation of the system of the present invention.

FIG. 6 is a conceptual diagram of a configuration of a conventional system.

FIG. 7 is an explanatory diagram of a dial-in service.

FIG. 8 is a flowchart showing the operation of the conventional system.

[Explanation of symbols]

 10 Private Branch Exchange (PBX) 11 Table 20 Line Trunk 21 PB Receiver 22 Dedicated Telephone 37 Function Button

Claims (1)

[Claims] 1. An office line trunk (20) connected to a line
A PB receiving section (21) for receiving a PB signal from a line via the central office trunk (20); a private branch exchange (10); and a plurality of dedicated telephones (22) connected to the private branch exchange (10). ) And a table (11) for associating a subscriber number, an extension number, and a button number with each other in the private branch exchange (10), and when a dial-in call is received, the private branch exchange (1
0) refers to the table (11), and for each dedicated telephone set (22), the corresponding button number lamp is turned on and the telephone set (22) is ringed. Local line operation system.