JPH0865392A - Terminal call method - Google Patents

Abstract

PURPOSE: To concretely display an incoming call incompleted reason on an caller side subscriber terminal or to make the incoming call compulsorily received by an incoming call side subscriber terminal when an incoming call subscriber is absent. CONSTITUTION: Subscriber state information is registered in an exchange by a subscriber terminal. At the time of an incoming call to the subscriber terminal, the propriety of the incoming call is decided by the subscriber state information and an incoming call control is performed. In the case of an incoming call is incompleted at the time, the reason is visibly displayed on the ealler side terminal. Further, when a certain time elapses and a call operation is performed by the caller side terminal in a state that the incoming call incompleted reason to the incoming call side terminal is displayed on the originating terminal, the incoming call is made to compulsorily received by the incoming call side terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention registers subscriber status information in an exchange so that the subscriber status information can be updated, so that when the called subscriber is absent, a call is made to the subscriber terminal in principle. The present invention relates to a method of calling a terminal which is protected from being forgotten.

[0002]

2. Description of the Related Art Up to now, if a telephone (subscriber terminal) for receiving an incoming call is called when the exchange is not in use, the telephone is called when the telephone is busy. Is sent. What if the called side (called side)
When the transfer service is provided on the condition that the caller is busy or does not answer or is absent, the transfer destination telephone is called. Incidentally, as to the handling of the incoming call when the called party is absent, Japanese Patent Laid-Open No. 62-263
743 publication is mentioned.

[0003]

Therefore, if there is an incoming call to the telephone when the telephone is not in use, the telephone is unconditionally called. However, the person who answers the call is not necessarily the one the caller wants, and in such a case the caller wants it only after some conversation has been exchanged with the caller. A conversation will be held with the other person, and it will take time to have a conversation with the person who wants it. In addition, when the transfer service is provided, if the transfer condition is satisfied, the incoming call is uniquely transferred to the transfer destination. Even if there is, there is a problem that you cannot make a call.

The object of the present invention is to provide a method for calling a terminal in which the called subscriber terminal is not called when the called subscriber is absent for some reason, and the calling subscriber terminal calls the called party. There is a terminal calling method in which the reason why the call is not specifically displayed is provided, and further, a terminal calling method capable of forcibly calling the called subscriber terminal even if the called party is not called in principle.

[0005]

Means for Solving the Problems The above object is to assume that subscriber status information is registered in advance by a subscriber terminal in the exchange so that the subscriber terminal information can be updated. This is achieved by determining whether or not a call can be made to the subscriber terminal from the subscriber status information. Furthermore,
When no call is made to the called party, the reason is achieved by being visually displayed on the calling subscriber terminal. Furthermore, in the state where the calling side does not call the called side, if a certain time has elapsed or if the calling side subscriber terminal performs a calling operation, This is achieved by calling the called subscriber terminal.

[0006]

If the subscriber cannot answer the incoming call that may arrive afterwards due to some reason, such as a conference, business trip, vacation, or temporary absence, the subscriber terminal cannot respond. The reason is that the subscriber status information is registered in the exchange. Now, when there is an incoming call to the subscriber terminal, the exchange determines whether or not the subscriber terminal can be called from the subscriber status information, but if there is any reason why the call cannot be answered, it is registered. in case of,
The calling side is notified of the fact, and an audible person or a talk without calling the subscriber terminal. In that case, if the calling subscriber terminal is a multi-function terminal with a visual display function, the specific reason indicated by the subscriber status information from the exchange can be displayed on the terminal. It is a thing. For some reason or, regardless of this, if the calling party still requests the called subscriber terminal to receive a call, the calling party may use a special number dial operation or a special key operation. The subscriber terminal on the receiving side is called from the exchange after waiting or after a certain period of time has elapsed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. First, the exchange system according to the present invention will be described. FIG. 3 shows an outline of a system configuration of a stored program control type electronic exchange system as a private branch exchange system. As shown in the figure, the central control unit 2 executes various exchange processing programs stored in the storage unit 3 so that the electronic exchange 1 is exchanged so that two arbitrary extension subscriber telephones 4 and 5 are connected. The process is controlled. In this example, a plurality of extension subscriber telephones 4, 5
Although a multi-function telephone with a display function is assumed as the above, depending on the display function, the one according to the present invention is displayed as described later.

Each of the extension subscribers 4 and 5 may not be able to respond to the incoming call due to various reasons. In this case, the specific reason is the subscriber status information as the extension subscriber telephone set 4. , 5 through the electronic exchange 1 to the storage device 3
Will be registered as renewable. 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.

As shown in FIG. 5, after a call is made, the extension subscriber telephone dials a special number corresponding to a specific reason that the incoming call cannot be answered. Subscriber status information of is registered. After this registration, when the extension subscriber receives an incoming call, the subscriber status information about the extension subscriber is referred to, and processing is performed according to the determination processing result of whether or not the call is possible. .

FIG. 1 shows a state transition when an extension subscriber receives an incoming call from another extension subscriber. As shown in the figure, the subscriber status information of the extension subscriber is analyzed based on the extension subscriber telephone number dialed from another extension subscriber telephone. If there is no reason for absence in the subscriber status information, it is judged as "vacant" and the extension subscriber telephone is called. However, if there is any reason for the absence, it is judged as "absent" and a voice to that effect is sent to the calling extension subscriber, so that the called (callee) extension subscriber is absent. Is known to be.

FIG. 2 shows the flow of the subscriber state information analysis processing. The subscriber status information, including whether the extension subscriber's telephone is in use, is analyzed, and if the call is available, it is determined to be "vacant". However, if the call is rejected, that fact is called. Is displayed.
The display to the calling extension subscriber may be a talkie or an audible tone. If the calling extension subscriber's telephone is multi-function with display function in addition to these indications, the specific reason is as follows. It is designed to be visible. For example, the reason why the call cannot be made such as "busy" or "business trip" is specifically displayed. Depending on the reason displayed, it may be appropriate to make an incoming call.
In such a case, as shown in FIG. 1, the calling subscriber performs a calling operation using a special number key. As a result, the called extension subscriber's telephone is forcibly called, but when there is another extension subscriber in the vicinity, the call is answered by proxy.

[0012] The forced call to the called extension subscriber telephone set can also be automatically made on the electronic exchange side without the call operation from the calling side. If the calling side has passed a certain period of time without disconnecting the line, the call may be started at that point of time. Although the above explanation has been made by taking an example of a private branch exchange, it is also applicable to a central office exchange.

[0013]

As described above, according to the present invention, if the called party is absent, the called party will not be called and the calling party will not be called. The reason for the called party not being able to answer will be known. Further, the present invention allows the called subscriber to be forcibly called in certain cases.

[Brief description of drawings]

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

FIG. 2 is a diagram showing a flow of subscriber status information analysis processing.

FIG. 3 is a diagram showing an outline of a system configuration of a storage 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 state transition when subscriber state information is registered.

[Explanation of symbols]

1 ... Electronic exchange, 2 ... Central control unit, 3 ... Storage unit,
4, 5 ... Extension subscriber telephones

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Usui 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture Hitachi Ltd. Totsuka Plant

Claims (8)

[Claims] 1. A terminal calling method of a switching system which accommodates a plurality of subscriber terminals and performs switching connection between the subscriber terminals, wherein information about the subscriber status of the first terminal is sent to the switching system. The first step of registering, and whether to connect the first terminal and the second terminal based on the information registered in the first step when the second terminal makes a call to the first terminal. If it is determined that the connection is possible in the second step of determining whether or not the connection is possible in the second step, the exchange system controls the incoming call from the second terminal to the first terminal, and determines that the connection is not possible. If so, the exchange system notifies the second terminal that the incoming call to the first terminal cannot be made, and performs a control operation that does not perform the control that does not perform the incoming call to the first terminal. A terminal calling method comprising three steps. 2. The third step creates information to be notified to the second terminal including a reason why an incoming call to the first terminal cannot be made based on the information registered in the first step. The terminal calling method according to claim 1, further comprising the step of: 3. The terminal calling method according to claim 1, wherein in the third step, the information to be notified to the second terminal is transmitted as an audible sound, a talk, or visible information. 4. The terminal calling method according to claim 3, wherein the reason why the incoming call to the first terminal cannot be made is visually displayed on the second terminal. 5. The first step is a step of registering or updating information regarding a subscriber status of the first terminal, and the exchange system is operated by a special number dial or a special key operation of the first terminal. A step to call,
The terminal calling method according to any one of claims 1 to 4, further comprising a step of transferring and inputting a code corresponding to information on the status of the subscriber into the switching system and a step of storing the code. 6. The terminal calling method according to claim 1, wherein when a period during which the incoming call to the first terminal cannot be made has passed a predetermined time, the second terminal is called. A method of calling a terminal, further comprising the step of controlling incoming call connection to the first terminal. 7. The method of calling a terminal according to claim 1, wherein the second terminal is operated by operating the second terminal even during a period in which an incoming call cannot be made to the first terminal. A method of calling a terminal, further comprising a step of forcibly controlling connection of the terminal to the first terminal. 8. The forced connection control step comprises a step of calling the exchange system by a special number dial or a special key operation of the second terminal, and a code corresponding to the forced connection reception control of the exchange system. 8. The terminal calling method according to claim 7, further comprising the steps of: transferring and inputting to the first terminal;