JPH0474093A - Call incoming system - Google Patents

Abstract

PURPOSE:To realize the incoming call form for each DI(dial-in) number and to improve the function in the dial-in incoming call system by deciding the incoming call from of a trunk line incoming call base on a dial-in number or an incoming call number when the incoming is a dial-in incoming call or an incoming call through an ISDN line. CONSTITUTION:A DI number is sent in the dial-in incoming call via a trunk line interface and an ISDN interface. A central controller 130 searches data from the DI number of the incoming call to extract data in the incoming call form. Moreover, when a call reaches an interface 111 from an ISDN network 3, a voice system or a data system is identified at the dial-in incoming call to decide a table in which a different incoming call form is set depending on the voice system and the data system and the data representing the incoming call form is extracted based thereon. The controller 130 applies incoming call control based on the extracted data.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a call termination system in a telephone exchange.

[Conventional technology]

Conventionally, in electronic exchanges or electronic key telephone devices that provide a dial-in incoming call system, the DI number is replaced with a terminal number using a dial-in number or called number (hereinafter referred to as an rDIDI number), and a call is made based on the replaced number. , a terminal device is selected and a call is made to the terminal device, and only one terminal device is used to make the call.

Also, if a dial-in method was not provided, it was possible to call multiple terminal devices, but in this case,
In order to determine the type of incoming call for each central office line, many central office lines were required.

[Problem to be solved by the invention]

In the above-described conventional dial-in call termination method, the number of terminal devices that can be called is limited, and therefore it is not possible to notify other terminal devices of the call and incoming call.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and to improve the functionality of the dial-in call reception system by realizing a different call reception format for each DI number.

[Means to solve the problem]

An object of the present invention is to determine, in a telephone exchange that provides a distributed call termination method or a dial-in call termination method, the reception mode of a central office line call based on the dial-in number or the called number in the case of a dial-in call or a call from an ISDN line. This can be achieved by doing.

In addition, in the case of a dial-in call from an ISDN line, the incoming call is determined whether it is a voice call or a data call, a table that determines the incoming call type is determined based on the determination result, and a table is determined based on the table and the called number. This can be achieved by determining the form of incoming calls on the central office line.

[Effect]

For each DI number, the central office line incoming mode corresponding to that DI number is
By setting it in the storage device, in the case of a dial-in call or an incoming call from an ISDN line, the central office line termination mode is searched from the received DI number and the set central office line termination mode is determined. This allows for multiple incoming terminal devices and display of incoming calls on other terminal devices.Also, when dial-in calls are received via an ISDN line, different incoming terminal devices are used for each type of incoming voice call and data incoming call. Therefore, for the DI number of the ISDN line,
Separate tables are provided for determining the termination mode for the voice system and for determining the termination mode for the data system. Thereby, the receiving terminal device can be selected separately for each type of voice call and data call.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

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

In FIG. 1, a central control unit 130 is connected to a storage device 131 having a random access memory (RAM), and performs exchange operations according to programs and data stored in the storage device 1131. In addition, the office line interface 110 uses an analog signal to
ISDN interface 111 is an interface circuit that connects to the analog network 2, which is the upper station, and the ISDN interface 111 connects to the upper station ISDN III! This is an interface circuit connected to 3. Terminal device interface 112.
113 and 114 are terminal equipment! (for example, a telephone, a data terminal). Further, the incoming call display g1140 is a device for displaying an incoming call when a distributed call is received.

Figure 2 is a diagram showing the data structure for converting a DI number to a call reception mode. When data is searched by the DI number and the 10 number matches (corresponds to) the data, the following call reception mode is used. Data becomes valid. Incoming call type data includes incoming call group.

The destination terminal device number and other data necessary for incoming call control are set.

The operation will be explained below.

Dial-in calls can be received via the central office line interface or ISDN.
A DI number is sent via the interface.

The central control unit w130 selects the second DI number from the incoming call.
Search the data in the figure and extract the data on the incoming call type.

Also, from the ISDN network 3 to the ISDN interface 11
1, when the dial-in call arrives, it identifies the voice system and data system, determines a table in which separate call reception formats are set for the voice system and data system, and then calls based on the determined table. data indicating the type of incoming call.

The central control device 130 performs incoming call control based on the extracted data. For example, if the data for the voice type call termination type is to call the terminal device H120, and the data type for the data type is to register the call to both the terminal devices 121 and 122. In the case of an incoming voice call, the terminal device W120 is selected and the terminal device 1120 is called via the terminal device interface 112.

In addition, in the case of data-related incoming calls, the terminal device 121 is selected and the terminal device is connected via the terminal device interface 113! 1
21 and at the same time select the terminal device 122 and call the terminal device 1 via the terminal device interface 114.
22 is called.

Furthermore, if the incoming call mode is specified to be displayed on the incoming call display panel 140 corresponding to one incoming group instead of calling the terminal device, each DI number can be displayed on the incoming call display panel,
You can also respond by dialing a specific number from your terminal device.

〔Effect of the invention〕

As explained above, according to the present invention, the following effects are achieved.

By converting incoming dial-in calls to other incoming calls, you can smoothly respond to central office lines.

Further, if the incoming call reception mode is set for each office line, the number of office lines can be reduced.

In addition, ISDN line IN564. When using the IN5I500, it is possible to receive calls in which the voice system and data system are completely separated.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the structure of data for converting a DI number into a receiving mode. 100... Call path 110... Office line interface 111... ISDN interface 112, 113, 114... Terminal device interface 120, 121, 122... Terminal device 130... Central control device 131. ·Storage device

Claims (1)

[Claims] 1. In a telephone exchange that provides a distributed call termination method or a dial-in call termination method, dial-in call termination or I
When a call is received from an SDN line, this method is characterized in that the method of receiving a call from a central office line is determined based on the dial-in number or the called number. 2. In a telephone exchange that provides a distributed call termination method or a dial-in call termination method, when a dial-in call is received from an ISDN line, the incoming call is determined whether it is a voice call or a data call, and the incoming call type is determined based on the determination result. A call receiving method is characterized in that a table is determined, and the form of receiving a call from a central office line is determined based on the table and the called number.