JPH02299355A - Incoming lamp color identification system for private branch exchange system - Google Patents

Abstract

PURPOSE:To discriminate whether an incoming call comes from an extension or a trunk line visually by discriminating whether the arrival of the call comes from an extension or a trunk line and sending a color signal corresponding to the kind of the incoming call. CONSTITUTION:When the operator of a multi-function telephone set 2 dials an extension number to call a multi-function telephone set 8, a central controller 5 receives an extension number sent via an extension trunk 3 to discriminate whether the call comes from an extension or a trunk line. The discrimination is implemented by the kind of the trunk 3 to read a color signal pattern in the area corresponding to the trunk 3 of a main storage device 7. The controller 5 sends the read color signal pattern to the telephone set 8 via an extension trunk 9 together with an incoming signal. On the other hand, as to the incoming call from the trunk line, the controller 5 discriminates it to come from the office line trunk 4, the color signal pattern in the area corresponding to the trunk 4 of the device 7 is read and the color signal for the trunk line is sent to the telephone set 8 together with the incoming signal.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is a private branch exchange system, and more specifically, it is possible to distinguish whether a call is received from a single office line or an extension line using a color indicator lamp. Related to incoming call lamp color identification method.

(Prior Art) Conventionally, in this type of private branch exchange system, whether a call is received from a central office line or an extension line is identified by the ringtone that rings the multifunction telephone.

(Problem to be solved by the invention) Therefore, if there is noise etc. in the surroundings, it is possible to determine that there is a ringtone, but there is a drawback that it takes time to make a distinction. .

An object of the present invention is to provide an incoming call lamp color identification system for a private branch exchange system that can instantly and reliably determine whether an incoming call is from a central office line or an extension line not by hearing but visually.

(Means for Solving the Problems) In order to achieve the above object, an incoming call lamp color identification method for a private branch exchange system according to the present invention is an incoming call lamp color identification method for a private branch exchange system comprising a private branch exchange and a large number of multi-function telephones. The multi-function telephone is equipped with incoming call lamps of different colors depending on whether the call is an extension call or a central office line, and the private branch exchange has an extension trunk that accommodates the multi-functional telephone and a central office trunk. 1 communication path switch, and a main storage device.

When the central control unit receives an incoming call, it determines whether the call is received from the central office trunk or the extension trunk, and based on the determination result, stores the main memory f!
, and reads out the color signal corresponding to the type of incoming call, and sends the color signal together with the incoming call signal to the multifunction telephone of the destination destination,
The incoming call lamp in the color corresponding to the type of incoming call on the multi-function telephone of the N destination is turned on or blinks.

(Example) The present invention will be explained in more detail below with reference to one drawing.

FIG. 1 is a relay system diagram showing an embodiment of an incoming call lamp color identification system for a private branch exchange system according to the present invention.

This figure shows only the parts directly related to the present invention.

The private branch exchange 6 has 3 trunks for extension lines, 41 trunks for central office lines, and 1.91 trunks for central office lines. It includes a central controller 5 and a main memory R7.

Multifunction telephone @2 connected to extension trunks 3 and 9
, 8 are provided with incoming call lamps 2a, 3a. Incoming call lamps 2a and 8a are green lamps for indicating incoming calls from the central office line (incoming calls from the central office line) and red lamps for indicating incoming calls from extension 4N (incoming calls from extension lines). It is structured so that the lamp flashes on and off.

The office line is connected to a private branch exchange by a office line trunk 4.

The main storage device 7 stores a color signal pattern for blinking a green lamp indicating an incoming call from an extension line and a blue lamp indicating an incoming call from a local office line.

Here, assume that the multifunction telephone 2 makes a call and calls the multifunction telephone 8.

When the operator of multi-function telephone 2 dials the extension number,
The central control unit f15 receives the extension number sent to the extension trunk 3 through a register (not shown), analyzes the number 1, and determines whether the call is received from an extension or a single office line.

The determination method is to determine the seed responsibility of trunk 3.

In this embodiment, since the calling party is the multifunction telephone 2, it is determined that the caller is an extension trunk, and the color signal pattern of the area corresponding to the extension trunk in the main storage device 7 is successively displayed.

The central controller 5 transmits the color signal pattern thus read out together with the incoming call signal to the multifunction telephone 8 via the extension trunk 9.

Multi-machine 1! ! The telephone set 8 receives the next color signal and flashes a red lamp for indicating an incoming extension call.

The operator of the multi-function telephone 8 can see the flashing blue lamp and identify that the call is coming from an extension.

On the other hand, regarding an incoming call from a central office line, the central control unit 5 determines that it is a central office line trunk, reads out the color signal pattern in the area corresponding to the central storage trunk in the main memory 7, and reads out the color signal pattern of the area corresponding to the trunk for the central office line along with the first incoming signal. Send the color signal to the feature phone.

The incoming call lamp of the multi-function telephone will flash green.

(Effects of the Invention) As explained above, according to the present invention, it is possible to determine whether a call is received from a single station line or an extension line by the color of the incoming call lamp that is lit or flashing. It is easy to use and has the effect of allowing you to answer calls quickly.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an incoming call lamp color identification method for a private branch exchange system according to the present invention. 1... Call path switch 2.8... Multifunction telephone 2a, 8a... Incoming call lamp 3.9... Extension trunk 4... Office line trunk 5... Central control unit 6. ...Private branch exchange 7...Main storage device Patent applicant NEC Engineering Co., Ltd. Agent Patent attorney Inoro Jusai Figure 1

Claims (1)

[Claims] An incoming call lamp color identification system for a private branch exchange system consisting of a private branch exchange and a large number of multi-function telephones, wherein the multi-function telephones have incoming call lamps of different colors depending on whether the call is an extension call or a central office line call. However, the private branch exchange is
It has an extension trunk for accommodating the multifunction telephone, a central office trunk, a call path switch, and a main storage device,
When an incoming call is received, the central control device determines whether the call is received from the central office trunk or the extension trunk, accesses the main storage device based on the determination result, and determines the type of incoming call. A corresponding color signal is read out, the color signal is sent to the destination multi-function telephone together with the incoming call signal, and an incoming call lamp of a color corresponding to the type of incoming call on the destination multi-function telephone is turned on or blinks. Incoming lamp color identification method for private branch exchange systems.