JPH1075302A - Exchange system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the exchange system in which a caller subscriber forcibly calls a called subscriber depending on a reason of non-reply by the called subscriber. SOLUTION: For example, while a reason of non-reply from a called terminal equipment 4 is registered in a storage device 3, when an incoming call comes from a caller terminal equipment to the terminal equipment 4, a central controller 3 does not immediately call the terminal equipment 4 depending on the reason of non-reply, the reason of non-reply is once informed to the terminal equipment 5, and when the terminal equipment 5 makes an operation of dialing of a specific number or the like depending on the reason of non-reply, the terminal equipment 4 is first called by awaiting the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a state in which a reason for a non-response from a called terminal is stored in correspondence with the called terminal.
When there is an incoming call to the receiving terminal, the calling terminal is notified of the reason for the non-response stored for the receiving terminal, and responds to the notification according to the reason for the non-response. The present invention relates to a switching system in which a receiving terminal is forcibly called after a calling operation is performed by a calling terminal.

[0002]

2. Description of the Related Art Heretofore, in an exchange (exchange system), if a telephone set for receiving a call (called subscriber terminal) is not in use, the telephone is called, but if the telephone is busy, a call is made. A busy tone is transmitted to the side. If the transfer service is performed on the condition that the receiving side (called side) is busy, or does not answer or is absent, the transfer destination telephone is called. Japanese Patent Application Laid-Open No. 62-263743 discloses a method related to the handling of an incoming call when the receiving side is absent.

[0003]

Therefore, if there is an incoming call to a telephone when the telephone is not in use, the telephone has been called unconditionally. However, the person who answers the call is not necessarily the one the caller wants, and in such a case, the caller will not be able to respond until after some conversation with the caller. A conversation will be held with the partner who wants it, and it will take time to talk with the partner who wants it. In addition, when the transfer service is performed, the incoming call is unambiguously transferred to the transfer destination if the transfer conditions are satisfied, so that the caller is willing to talk to any one of the transfer sources. Even if there is, there is a problem that a call cannot be made.

[0004] It is an object of the present invention to provide a method in which when a subscriber is unable to answer a call for any reason of non-answering, when the subscriber receives an incoming call, the subscriber's telephone is called. The calling subscriber is informed of the reason for the non-answering without being answered, and depending on the reason for the non-answering, provides a switching system in which the called subscriber can be forcibly called by the calling subscriber. .

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a storage system in which the reasons for non-response are registered from each terminal and an incoming call to the terminal in which the reasons for non-response are registered. Accordingly, after notifying the calling terminal of the non-response reason, as a response to the notification, waiting for a calling operation from the calling terminal according to the non-response reason,
This is achieved by providing a new control means for controlling the terminal associated with the incoming call to be forcibly called.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. First, prior to a specific description of the switching system according to the present invention, an operation outline on the switching system will be described as follows.

In other words, if each subscriber cannot respond to an incoming call that may arrive thereafter for any reason, for example, a conference, business trip, vacation, temporary absence, etc., the subscriber terminal The specific non-response reason that cannot respond is registered on the switching system as subscriber state information. When an incoming call arrives at a subscriber terminal for which the reason for non-response is registered, the switching system determines whether the subscriber terminal can be called based on the subscriber status information. If the answer reason is registered, the calling side is notified by an audible person or a talkie without calling the subscriber terminal. At this time, if the calling subscriber terminal is a multi-function device with a visual display function, the calling subscriber terminal is also notified of the reason for non-response from the switching system. Above, it can be displayed visually. Therefore, depending on the reason for the non-response, or irrespective of the reason for the non-response, if the calling party still requests the called subscriber terminal to receive the call, a special number dialing operation from the calling party, or The called subscriber terminal is called from the switching system after a call operation by a special key operation or the like or after a certain time has elapsed.

Now, the switching system according to the present invention will be described in detail. FIG. 3 shows an outline of a system configuration of a stored program control type electronic switching system as a private branch exchange system together with an extension telephone.
As shown in the figure, the central control unit 2 executes various exchange processing programs stored in the storage device 3 so that the electronic exchange 1 is exchanged so that any two extension telephones 4 and 5 are connected. The processing is controlled. In this example, a multi-function telephone with a display function is assumed as the plurality of extension subscriber telephones 4 and 5. Depending on the display function, the reason for non-response according to the present invention is displayed as described later. It is.

Now, each of the extension subscriber telephones 4 and 5 may not be able to answer the incoming call for various reasons.
In that case, the specific reason for the non-response is the subscriber state information, and the extension subscriber telephones 4 and 5 each send the electronic exchange 1
Is registered in the storage device 3 as updateable. FIG. 4 shows an extension status table prepared in the storage device 3. In this table, the subscriber status information of the extension subscriber is registered with the extension subscriber telephone number as an address. However, FIG. 5 shows the state transition at the time of the registration.

[0010] As shown in FIG. 5, after a call is made, a special number corresponding to a specific non-answering reason, for example, which cannot answer an incoming call, is dialed from the extension subscriber's telephone, and the extension status table stores the number. The subscriber status information of the extension subscriber is registered. After the registration, if there is an incoming call to the extension subscriber, the subscriber status information about the extension subscriber is referred to, and a process is performed according to the result of the determination process as to whether or not calling is possible. .

FIG. 1 shows a state transition when an extension subscriber receives a call from another extension subscriber. As shown, the subscriber status information of the extension subscriber is analyzed based on the extension subscriber telephone number dialed from another extension subscriber telephone. If no reason for absence (reason for non-response) does not exist in the subscriber status information, it is determined to be "vacant" and the extension subscriber telephone is called. However, if there is any reason for absence, it is determined to be “absent”, and a voice to that effect is sent to the calling extension subscriber, so that the calling extension subscriber can call the called party ( It is known that the called party cannot answer the call.

FIG. 2 shows the flow of the processing for analyzing the subscriber state information. The subscriber status information, including whether the extension subscriber telephone is in use, is analyzed, and if it is possible to call, it is determined to be “vacant”. Is displayed.
The display to the calling extension subscriber may be a talkie or an audible tone. In addition, when the calling extension subscriber telephone is a multi-function with a display function, the specific information may not be displayed. The response reason is displayed visually. For example, the reason for non-response is specifically displayed, such as "busy" or "business trip". Depending on the displayed non-response reason, it may be appropriate to receive the call. In such a case, as shown in FIG.
The calling subscriber performs a calling operation using the special number key. As a result, the called extension subscriber telephone is forcibly called, but if there is another extension subscriber in the vicinity, the extension subscriber will make a proxy response to the call.

By the way, a forced call to a called extension subscriber telephone can be automatically performed on the electronic exchange system side without performing a calling operation from a calling side. If a certain period of time elapses without the calling side disconnecting the line, the call may be started at that point. Although the private branch exchange system has been described above as an example, the present invention is also applicable to a central office exchange.

[0014]

As described above, according to the first aspect of the present invention, when a subscriber is unable to answer a call due to some non-answer reason, there is an incoming call to the subscriber. In such a case, the calling subscriber is notified of the non-answering reason without being called, and depending on the non-answering reason, the calling subscriber is forced to call the called subscriber. A switching system that can be called by the public is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a state transition when a subscriber receives an incoming call from another subscriber;

FIG. 2 is a diagram showing a flow of a subscriber state information analysis process;

FIG. 3 is a diagram showing an outline of a system configuration of a stored program control type electronic exchange system;

FIG. 4 is a diagram showing an extension status table in which subscriber status information is registered;

FIG. 5 is a diagram showing a state transition when subscriber state information is registered;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electronic exchange, 2 ... Central control device, 3 ... Storage device,
4,5 ... Extension subscriber telephone

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiro Usui 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside the Hitachi, Ltd. Totsuka Plant

Claims (1)

[Claims] 1. A switching system for accommodating a plurality of terminals and performing exchange connection between the terminals, comprising: switch means for setting a communication path to each terminal and canceling the setting; Storage means for registering the response reason, and notifying the calling terminal of the non-response reason in response to an incoming call to the terminal in which the non-response reason is registered. Control means for waiting for a calling operation to be performed from the calling terminal for any reason, and for controlling the terminal related to the incoming call to be forcibly called.