JPS59161962A - Exchange - Google Patents

Abstract

PURPOSE:To perform the control of transfer connection from a secretary telephone to an executive telephone in response to types of transfer including the busy transfer, the absence transfer and the secretary transfer, by displaying these types to the secretary telephone when an incoming call to an executive extension is transferred to a secretary extension. CONSTITUTION:Executive extensions A-C set the secretary transfer, the absence transfer and the busy transfer to a common secretary extension via a switch circuit 1. Under such conditions, the incoming calls from optional extension E, trunk TRK and attendant board ATT to extensions A-C are transferred automatically to the extension S. In this case, a central controller CC recognizes the transfer mode where each executive extension is set together with a memory M and displays 11 the mode through a called number display controller 12. Thus a secretary telephone can have a proper answer by the display 11, and it is possible in the secretary transfer mode to call out the executive extension and to perform a transfer operation with class collation when the call is transferred to an executive from a secretary.

Description

[Detailed Description of the Invention] The present invention relates to a private branch exchange, in particular an electronic private branch exchange that automatically transfers an incoming call to a specific extension, displays the forwarding setting extension information, and allows the recipient of the transferred call to transfer to the forwarding setting extension. Regarding the transfer call method.

With the conventional automatic call forwarding function, if an extension is set to forward calls when busy, it is not possible to identify to which extension the incoming call is forwarded and in what state (busy or absent). There was a drawback. If p1 is configured as an executive and secretary telephone on an abnormal extension phone, the secretary will answer the forwarded call, but if there is one secretary for multiple executives, which executive receives the call and what state is the call in? Was it transferred (for example, during one episode of absence or a normal transfer)?
There were some shortcomings in the service.

SUMMARY OF THE INVENTION An object of the present invention is to provide an exchange that can improve the above-mentioned drawbacks, improve service to callers, and speed up processing.

A first aspect of the present invention is a switching system including a second telephone and a plurality of first telephones, the number of the telephone from which the call has been received among the plurality of first telephones, and the t; The switching system is characterized in that the second telephone is provided with means for displaying in what state the call was transferred.

A second invention is a switching system including a second telephone and a plurality of first telephones, in which a call from the second telephone to the first telephone is made when the first telephone is connected to the second telephone. The switching equipment is characterized in that it is provided with a means for executing the transfer regardless of whether or not the transfer is set to the telephone.

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

FIG. 1 is a block diagram for explaining an exchange according to an embodiment of the present invention.

In FIG. 1, three executive extensions A, B, and C are connected to a common secretary extension S via switch circuit 1 to set [secretary transfer/absent transfer/busy transfer] 13, 14.
, 15. All incoming calls (either from extension E to 16, from trunk 2 to 17, or from trunk 3 to 18) are forwarded to secretary extension S under the control of central controller 9 based on the information set for forwarding. At this time, the central control unit 9 connected to the memory device R10 collects and registers the executive extension number information that received the first call (for example, registers the executive extension number A), and also determines the state (for example, the secretary Status information for identifying whether the call has been transferred for setting (transfer) is also collected and registered, and the information is displayed on the display device 11 through the called number display control device 12.

The secretary extension operator responds to the transfer call and performs a retransfer operation to, for example, executive extension A based on the information displayed on the display device 11. Here, each extension A, B, C, E, S
between the switch circuit 1 and the line circuits 4, 5, 6, 7 .
8 is provided.

Now, to set up transfers from executive extensions, proceed as follows.

(a) Busy transfer: In this case, a busy transfer function is set as a system, and when a call is received on the busy executive extension, the call is automatically transferred to the secretary extension S.

The secretary extension S notifies that the executive is busy based on the busy status display.

(b) Call forwarding: By registering a call forwarding code from the executive's extension, all incoming calls will be automatically forwarded to the secretary.

Based on the secretary extension Sf'i and the absence status display, the caller is informed that the executive is absent. To unregister call forwarding,
This is achieved by setting a registration cancellation code using the executive extension.

(c) Secretary transfer: As in case (b), all incoming calls are automatically transferred to the secretary by registering the secretary transfer code from the executive extension.

After answering the transferred call, the secretary extension S transfers the call to the called executive based on the called executive's extension number display.

When transferring from a secretary to an executive, calling and transfer operations are possible by checking the class.

FIG. 2 is a circuit block diagram of an exchange according to an embodiment of the present invention.

In FIG. 2, when a number is dialed from a trunk, relay stand, or extension, the number is counted by a number receiving circuit 21, the central control circuit 22 is activated, and number information is sent out. The central control circuit 22 uses the extension class matching circuit 23 to generate the class matching table T1.
to identify that the calling extension class is not the secretary extension class.

The central control circuit 22 also activates the transfer verification circuit 24 to determine whether the called trunk extension is set for transfer or not. If transfer is registered, the transfer destination is read out from the transfer registration table T2. More central control circuit? 2 also determines whether the called executive extension is busy, and if it is busy, transfer type registration table T
Register for 3. Based on the identification determination information, the central control circuit 22 activates the called party information registration circuit 25, sends the called party number information and status display information, and displays the display device control circuit 2.
6 and also drives the transfer control circuit 27 to control a call to the secretary's extension line and display it on a display device installed in the secretary's extension line. In addition, when the secretary extension answers the transfer call and transfers it to the called executive extension, the normal transfer function is used, but the central controller 22 performs a class check to ensure that the transferer is of the secretary extension class. This allows calling and transfer operations to executive extensions.

FIG. 3 is an explanatory diagram showing an example of the display device shown in FIG. 1.

In the figure, the lower four digits [2000] or the three Fi digits of the display device 11 display the called extension number. Most significant digit [1
] displays the status of the called executive extension. For example, if it is [1], it is a busy transfer, if it is - [2], it is a missed call, and if [3] it is a secretary transfer.

Next, the processing procedure of the exchange according to the embodiment of the present invention will be explained with reference to the flowchart shown in FIG.

If you are an extension subscriber, dial the executive extension number 3o.
After receiving the number in the number receiving circuit 21 and detecting the number 31, the caller class is verified. At this time, the exchange identifies whether the caller is a secretary extension or a general subscriber. Secretary H
C-1], the executive extension telephone call 32 is controlled and a response call 33 is made. For an incoming call (no) I/C from a general subscriber, the transfer verification circuit 24 checks whether or not the executive extension has set secretary transfer.If it is not set (no), the executive It controls calling 34 of the extension, and performs response and connection 35. If it is set (YES), the transfer destination and called executive extension status are read 36f, and if the transfer destination class is secretary extension (YES), the called party number and two types of status are sent to the called party information registration circuit 25. Perform registration 37. When the secretary's extension is free (YES), the exchange performs the secretary's extension calling process 38, the secretary's extension response 39, and the call's transfer to the called executive 40.
At the same time, information such as the called executive number, status, ni, etc. is sent 41, and the information is displayed 42 on the display device through the display device control circuit 26. If the secretary's extension line is busy (No), a busy process (busy tone) is sent or a waiting process 43 is performed.

As described above, according to the present invention, a normal busy transfer function is provided to an extension (secretary extension) that specifies all incoming calls to a specific 1ll (executive extension) on a normal extension line connected to the exchange, and an absent By adding a secretary transfer registration function to the transfer function, there is a means for automatic transfer, a means for identifying the called executive extension number, and the state in which the incoming call is transferred to the executive extension, that is, whether the call was transferred because it was busy. A called party number display device is provided with a means for identifying who is being transferred due to the secretary's absence, who is being transferred due to the secretary's absence, or who is being transferred based on the normal secretary transfer registration, and the information for such identification is installed at the secretary's extension telephone. The system is characterized by displaying a message on the screen, and by providing a means to check the class of calls from secretarial extensions when accepting forwarded calls, it is possible to prevent calls from being forwarded even if the called executive has set forwarding. Because of this feature, there is no need to use a special telephone (for example, a button telephone) for secretarial use, and the service to the caller can be improved and processing can be carried out quickly by displaying the number of the called executive and the situation.

[Brief explanation of the drawing]

FIG. 1 is a block diagram for explaining an exchange according to an embodiment of the present invention, FIG. 2 is a circuit block diagram of an exchange according to an embodiment of the present invention, and FIG. 3 shows an example of the display device shown in FIG. 1. translation map,
FIG. 4 is a flowchart showing the processing procedure of an exchange in four practical examples of the present invention. In the same figure, 4.5, 6.7.8... line circuit, 2... trunk circuit, 3... relay stand, 9... center Control device, 10...
Memory device, 12...Display device control circuit, 11
... Display device, 1 ... Switch circuit,
A, B, C, E, S...Extension, TI...
・Class comparison table, T2...Transfer registration table, T3・
-... Transfer type registration table, 21... Number receiving circuit, 22... Central control circuit, 23...
- Extension class verification circuit, 24... Transfer verification circuit, 25... Called party information, registration circuit, 26...
...Display device control circuit, 27...Transfer. Control circuit, 30... Executive extension number dial,
31...Number detection, 32.34...Executive extension call, 33.35...Response call, 3
6... Read the transfer destination called executive extension status, 37.
...Called party number status type registration, 38...
Secretary extension call processing, 39...Secretary extension response, 40...Transfer to called executive, 41...
・Sending information on called executive number status type, 42...
・Display of information.

Claims (2)

[Claims] (1) Second! In an exchange equipped with a telephone and a plurality of first telephones, means for displaying the number of the telephone from which the call was received among the plurality of first telephones and the telephone power (in what state the call was transferred) A switchboard characterized in that the second telephone is provided with: (2) In an exchange equipped with a second telephone and a plurality of first telephones, a call from the second telephone to the first telephone is transferred by the first telephone to the second telephone. This switching equipment is characterized by the provision of a means for executing and transferring data regardless of whether it is set or not.