JPH03243047A - Exchange system - Google Patents

Abstract

PURPOSE:To reduce the load of a high-order terminal by tentatively releasing connection restriction from the high-order terminal to a low-order terminal and allowing the low-order terminal to directly originate. CONSTITUTION:When an extension A set up as a specific class is to execute international communication with an international origination source, the extension A internally calls an extension B set up to a superspecific class to transmit information indicating the requirement of international origination. Then the extension B imparts an origination class equivalent to that of itself to the extension A. At the time of starting talking with the international origination source, the origination class of the extension A is returned to the specific class again. Thereby, reorigination can be attained even when talking with the international origination source is not formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a switching system in which, for example, a calling class is set.

(Prior Art) In recent years, in exchange systems used within companies, it has become common to set a so-called calling class for each extension terminal.

This is to prevent calls such as long-distance calls and international calls, which have higher call charges than local calls, from being misused for private calls.

That is, extension terminals are classified into the following four calling classes depending on the central office line to which they can be connected.

■Super Special Armor: All types of calls, including international calls, can be made.

■Tokuko: Domestic transmission possible.

■Part A: It is possible to make out-of-town calls.

■Otsuchi・・・・・・・・・Only calls from extensions.

Such a calling class is set for each extension terminal within a range that does not interfere with normal business operations, and connection restrictions are added to the central office line.

Incidentally, there may be cases where it is necessary to make a higher-level call, such as an international call, from a lower-class extension terminal.

At times like this, I used to make calls across classes using the procedure shown in Figure 2.

That is, if an attempt is made to make an international call using extension A, which is in the special grade class shown in the figure, the call is made from extension A to extension B, which is in the super special grade class.

The user then tells extension B the telephone number of international call destination C and requests to make an international call.

Thereafter, extension B makes an international call to destination C, and if the call is established, the call is transferred to the extension.

In this way, extension A can make an international call to destination C.

However, in such a conventional method, since a call is requested to a person who has an extension of a higher class, there is a problem in that the caller is troubled and becomes a burden on the work.

In addition, because the recipient's phone number and other information are verbally communicated, it is easy to make a mistaken call, and the privacy of the person making the request is not protected.

(Problem to be Solved by the Invention) As described above, in the past, when making a call beyond the originating class, a request was made to an extension terminal of a higher class, which placed a heavy burden on the person receiving the request. In addition, since the request is made to another person, it is easy to make a false call (and the privacy of the person requesting the call is not protected).

The present invention has been made to solve these problems, and aims to provide a switching system that reduces the burden on higher-level terminals and allows direct calls from lower-level terminals.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides an exchange system having a plurality of terminals and in which connection restrictions to central office lines are set in stages for these terminals.
The feature is that for a terminal with a lower connection restriction set, any terminal with a higher connection restriction can temporarily relax the connection restriction to the same level as this terminal. There is.

Further, a second invention is characterized in that, in the above invention, the connection restriction is relaxed until the call is started by a subsequent call from the relaxed terminal.

(Function) In the switching system of the present invention, the connection restriction from the higher-level terminal to the lower-level terminal is temporarily relaxed, and the lower-level terminal makes a call directly, so that the burden on the higher-level terminal is lightened.

Additionally, since calls can be made directly from the lower-level terminal, privacy is protected.

Furthermore, since the relaxation of connection restrictions is temporary, reliable call management can be achieved.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a calling procedure in an exchange system according to an embodiment of the present invention.

As shown in the figure, extension A set for special class A is
If you want to make an international call with international destination C, first,
Make an extension call to extension B, which is set for the super special class. Then, tell Extension B that you would like to make an international call.

Extension B then gives extension A the same originating class as itself. This is done, for example, by pressing a dedicated function key or a predetermined special extension number, and then pressing the extension number of extension A. Note that this operation may be performed while the call to extension A is in progress.

After this, extension A makes a direct call to international destination C, and makes a call with C.

Here, when the call with the international destination C is started, the calling class of extension A is changed back to the special class. Therefore, even if the call cannot be established because the international destination C is busy, the call can be made again.

In this way, when making international calls using extension B,
All you need to do is perform a simple key operation, and extension A can directly call the other party. Furthermore, as soon as the call is established, the calling class is reset, which prevents abuse. However, it is possible to make a re-call until the call is established, which may cause trouble for extension B each time the call is established. do not have.

Furthermore, if extension A is equipped with a display function, extension B
When the originating class is given, this fact is displayed.

Also, if you limit the number of higher class terminals to one, for example,
Call management for the entire lower class can be easily performed.

[Effects of the Invention] As explained above, in the switching system of the present invention, the connection restriction from the higher-level terminal to the lower-level terminal is temporarily relaxed and the lower-level terminal makes a call directly, thereby reducing the burden on the higher-level terminal. becomes lighter.

In addition, since calls can be made directly from lower-level terminals, the transmission is protected and erroneous calls are reduced.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating a calling procedure in an embodiment of the present invention, and FIG. 2 is a diagram explaining a calling procedure in a conventional exchange system. A: Special class extension telephone, B: Super special class extension telephone, C: International destination. Outgoing class transition

Claims (2)

[Claims] (1) In an exchange system that has multiple terminals and connection restrictions for central office lines are set in stages, higher connection restrictions are set for any terminal for which lower connection restrictions have been set. An exchange system characterized by temporarily easing connection restrictions from an arbitrary terminal to a connection restriction equivalent to that of the terminal. (2) The exchange system according to claim 1, wherein the relaxation of the connection restriction is limited to the start of a call by a subsequent call from the relaxed terminal.