JPS6157161A - Display method of talking trouble - Google Patents

Abstract

PURPOSE:To simplify the search for the cause of poor calling by storing the information indicating subscriber's connection status in an automatic exchanging unit. CONSTITUTION:A storage device 7 provides the area storing the information indicating the connecting status of each extension subscriber (subscriber number's number N) in calling, keeping extension subscriber right most information 70, remote extension subscriber location information 71, and used channel information 72. If the extension subscriber 1 encountering poor calling in connecting status executes a specific operation (e.g. hooking operation), a COU 6 directs a channel switch SW3 to connect the extension subscriber 1 to an originating register trunk 4. Next when the extension subscriber 1 dials a specific number, the originating register trunk 4 identifies it as a poor calling registration number, reads the information 70-72 in the area corresponding to the subscriber's number N from the storage device 7, and types the information 70-72 with a read out typewriter 9.

Description

TECHNICAL FIELD The present invention relates to a call failure display system, and more particularly to a call failure display system for displaying the connection status when a subscriber during a call encounters a call failure state in an automatic exchange.

(Prior art) Conventionally, when a subscriber who is making a call through an automatic switching system encounters a state in which the call cannot be made due to noise or crosstalk, a maintenance person must check the subscriber accommodation location information 1 call line number, Because detailed information indicating the connection status, such as the call path switch number, was not known, it took time to find the cause of the call failure, and in many cases the cause was not identified, resulting in subscribers being unable to talk for long periods of time. The downside is that it can sometimes disappear.

(Object of the Invention) The object of the present invention is to provide a call failure display method that eliminates the above-mentioned drawbacks (by recording information indicating the connection status of the subscriber) and makes it possible to easily search for the cause of call failure. It is about providing.

(Structure of the Invention) According to the present invention, an automatic exchange is provided with a storage means for storing information indicating the connection status of a subscriber during a call, and a subscriber who encounters a call failure state performs a specific operation. In this case, a call failure display method is obtained, characterized in that the above-mentioned device reads information indicating the connection state regarding the subscriber from the means and displays it on an external device.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the call failure display method of the present invention, and FIG. 2 is a diagram showing an example of the memory contents of the device.

In Fig. 1, the automatic switchboard consists of a general call path switch (5W) 3 accommodating 1.2 extension subscribers, and 8W3.
A general outgoing register trunk (hereinafter referred to as OR) connected to
T') 4. Extension interconnection trunk (hereinafter referred to as 10T)
, a central control unit IC (hereinafter referred to as CPU) 6, a storage device (hereinafter referred to as DM) 7 which is connected to the CPU 6 and records information indicating the connection status of extension subscribers, and an external device such as a typewriter (hereinafter referred to as TYP) connected to the CPU 6. ) 9 includes an external device control circuit (hereinafter referred to as 10C) 8 for displaying information indicating the connection state number.

Next, in FIG. 2, the DM 7 includes an area for storing information indicating the connection status such as the extension subscriber (subscriber number N) in progress, and the area includes an extension subscriber layer 71. The used communication path information 72 and the like are recorded.

Next, the operation of this embodiment will be explained by taking as an example a case where a call failure occurs due to crosstalk or noise during a call between extension subscribers 1 and 2.

Extension subscriber 1 (subscriber number N), as is generally known, links SW3, IO'l'5. When connected to the extension subscriber 2 via the link ■, the CPU 6 sends information indicating the connection state to the area of the DM 7, that is, extension subscriber accommodation location information 70. The accommodation location A of extension subscriber 1, the accommodation location B of extension subscriber 2, and the numbers of links 1, 2, and 10T5 are stored as destination extension subscriber accommodation location information 71 and used communication path information 72, respectively. When extension subscriber 1 who encounters a call failure during a call in the above-mentioned connected state performs a specific operation (for example, a clicking operation),
The CPU 6 instructs the SW 3 to connect the extension subscriber 1 to the 0RT4 via the link (3). Next, when extension subscriber 1 dials a predetermined specific number, oa
'r4 is a bad call registration number and the CPU
Tell 6 that. The CPU 6 receives information 70, 71 indicating the connection status of the area corresponding to the subscriber number N from the DM 7.
．． 72 is read out and sent to 'rypg via engineering OC8, so TYP 9 te is the information 70, 71, 72t.
7 fi eves.

Therefore, the maintenance person can use this display information to search for the cause of the call failure.

(Effects of the Invention) As is clear from the above explanation, according to the call failure display method of the present invention, when a subscriber encounters a call failure state during a call, the details indicating the connection status at that time can be specified by the specific operation of the subscriber. Since such information is automatically displayed, it is easy for maintenance personnel to search for the cause of call failures, and subscribers are prevented from being unable to talk for long periods of time, resulting in improved customer service.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the call failure display system of the present invention, and FIG. 2 is a diagram showing an example of the memory contents of the storage device in FIG. 1. In the figure, 1, 2...extension subscribers, 3...
... Call path switch (SW), 4 ... Outgoing register trunk (OR, T), 5 ... Extension interconnection trunk (IOT), e ... Central control Device (CPU), 7... Storage device (DM), 8...
...External device control circuit (IOC), 9...
External device (TYP), 70... Extension subscriber accommodation location information, 71... Other party extension subscriber accommodation location information, 72... Nine used call paths information.

Claims (1)

[Claims] The automatic exchange is provided with a storage means for storing information indicating the connection state of a subscriber who is on a call, and when a subscriber who encounters a poor call performs a specific operation, the connection state of the subscriber is stored from the storage means. A call failure display method characterized by reading out the indicated information and displaying it on an external device.