JPS601963A - Extension mutual reconnecting system - Google Patents

Abstract

PURPOSE:To eliminate the trouble of seeking an extension number by dialing a special number and an extension number to be called at the 1st extension mutual connection without dialing the extension number to attain extension mutual connection through having only to dial the special number afterward. CONSTITUTION:An extension A hooks off a handset to call an extension B at first, catches an outgoing register (ORT) 5 and listens to dial tone. Then the extension A dials the special number for reconnection registration and then the extension number of the extension B to be called. The special number and the extension number dialed are fed to a special number identification device (SNA) 6 from the outgoing register 5, the numbers are analyzed at the device 6 and the special number information is transmitted to a central controller (CC) 3. The central controller 3 identifies the connection of ''extension mutual reconnection registration'' from the received information, connects the calling extension A and the called extension B through the known mutual extension connection and registers the extension number of the called extension B to a re-talking extension number storage device (RCNM) 2 connected to a subscriber circuit (LC) 1 of the extension A at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an extension interconnection reconnection system in an automatic private branch exchange.

In the conventional automatic private branch exchange system, when a call ends, all information related to the call is removed from the storage device, so when the extensions wish to talk again, It was necessary to dial the extension number again and connect the extensions. In this case, if you forgot the caller's extension number during the last call, or if you forgot the number you dialed last time, etc.
The drawback was that it was a pain to have to look up the extension number in the telephone directory each time.

The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to provide a system for mutually reconnecting extension lines, which makes it possible to automatically call the extension that was previously called by dialing a special number. There is a particular thing.

In order to achieve this object, the extension interconnection reconnection system of the present invention includes a special number identification device in the calling register of the automatic private branch exchange, and a recall extension number storage device in the extension subscriber circuit. , if the calling party wishes to repeat extension interconnection with the same extension, the calling party may dial the special number and the called extension number at the time of the first extension interconnection; The feature is that the extension can be interconnected with the called extension simply by dialing a special number.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a relay system diagram showing an embodiment of the extension mutual reconnection system of the present invention.

In the figure, the present invention is constructed by connecting an extension subscriber circuit (LC) 1 and an originating register (ORT) 5 for temporarily storing number information to an automatic switching switch SW, which is controlled by a central control unit (CC) 3. A special number information device ff1 (SN
A) 6 is provided, and the extension subscriber circuit 1 is provided with a re-call extension number storage device (R
CNM) 2 to reconnect the extension with the called extension.
This is performed by identifying the special number and reading the re-call extension number.

Next, the operation of the extension line interconnection system of the present invention constructed as described above will be explained.

First, extension A picks up the handset to call extension B, picks up the outgoing register (ORT) 5, and hears a dial tone. Next, extension A first dials the special number for reconnection registration, and then dials the extension number of called extension B. The dialed special number and extension number are passed to the calling center/register and to a special number identification device (SNA) 6 for analysis and the special number information is sent to a central controller (CC) 3.

At the same time, the call register 5 sends number information and caller accommodation location information to the central control device 3.

Based on the received information, the central control device 3 identifies that the connection is for "extension mutual reconnection registration", and connects the calling extension A and the called extension nB by the well-known extension interconnection, and at the same time, The extension number of the called extension B is registered in the repeat call extension number memory (RCNM) 2 connected to the subscriber circuit (LC) 1 of extension A.This registered extension number remains the extension number even after the call ends. When A dials the next special number for reconnection registration, he is not identified.

After the call between extension A and extension B is terminated and each of them is restored, when extension A wishes to make a mutual call with extension B again, extension A captures the dialing register 5 through a dial tone connection, Listen for a dial tone and then dial a preset special number for reconnection. The dialed special number is sent from the calling register 5 to the special number identification device 6 for analysis, and the special number information is sent to the central control device 3. At the same time, the call register 5 sends number information and caller accommodation location information to the central controller 3.

The central control unit 3 identifies that this is a "mutual extension reconnection" based on the received information, and stores the previous connection from the recall extension number storage 2 connected to the subscriber circuit 1 of extension A. Obtain the extension number of extension B that was communicating with extension A, connect extension A and extension aB via a well-known extension interconnection trunk (IOT) 4, and send a ring signal to extension B. Send out. Similarly, extension A can thereafter connect to the called extension B simply by dialing a special number.

Next, the central control unit 3 and the transmission register 5. shown in FIG.
The functions of the special number identification device 6 and the recall extension number storage device 2 will be explained in more detail with reference to FIG. 2, which shows an example of their configuration.

In Figure 2, each time the calling extension dials one digit,
The transmission register 5 counts the dial pulses and stores the number information, and at the same time sends this number information via the information transmission path (2) to the special number identification device 6 for analysis. The special number identification device 6 identifies whether the received number information is a normal extension number or a special number, and in the case of a special number, sends the special number information to the central control device 3 via the information transmission path (2). In addition, the calling register 5 transmits all the dialed number information and the accommodation location information of the calling extension to the central control unit 3 via the information transmission paths Send to.

Based on the special number information received from the special number identification device 6 and the number information received from the calling register 5, the central control device 3 identifies whether to register mutual extension reconnection or execute mutual extension reconnection, and performs mutual extension reconnection. In the case of registration, the extension number of the Tei call extension also received from the call register 5 is stored in the re-call extension number storage device 2 connected to the extension subscriber circuit lK of the caller accommodation location information received from the call register 5. Information transmission channel■
Register via. In the case of execution of mutual extension reconnection, the central control unit 3 stores the call extension number storage device 2 connected to the calling subscriber circuit 1 from the caller accommodation location information received from the calling register 5. The registered called extension number is read out via the information transmission path (2), and the called extension number and the caller accommodation location information received from the calling register 5 are automatically notified. Extended line interconnection is performed.

As explained above, when the present invention desires to perform extension interconnection with the same extension again, the special number and the called extension number can be dialed at the time of initial extension interconnection without having to dial the extension number each time. By dialing the number, you can connect the extensions by simply dialing the special number.This has the effect of eliminating the hassle of searching for the extension number, especially when communicating with external parties during meetings, etc. Effective for communication.

[Brief explanation of the drawing]

FIG. 1 is a relay system diagram showing an embodiment of the extension mutual reconnection method of the present invention, and FIG. 2 is a central control unit in the above embodiment,
FIG. 2 is a block diagram showing a calling register, a special number identification device, and a recall extension number storage device. A, B...Extension telephone SW...Automatic switching device switch l...Extension subscriber circuit 2...Recall extension number storage device 3...Central control unit 4...Extension mutual trunk 5
...Outgoing register 6...Special number identification device ■～■...Information transmission path applicant NEC Corporation

Claims (1)

[Scope of Claims] An automatic private branch exchange system comprising an automatic exchange switch connected to an extension subscriber circuit and a transmission register for temporarily storing number information, and controlled by a central control system, comprising: A special number identification device is provided to identify a special number to be sent when the calling party desires to repeatedly connect the same extension, and the system is provided with a special number identification device that identifies a special number to be sent when the calling party desires to repeatedly connect the same extension, and to transmit a call to the above-mentioned extension subscriber circuit at the time of the initial interconnection of the extension. A re-call extension number storage device is provided to store the called extension number sent by the caller together with the special number, and mutual reconnection of the extension with the calling extension is carried out.
An extension mutual reconnection system characterized in that the process is performed by identifying a special number and reading out a re-call extension number.