JPH0918910A - Private branch of exchange - Google Patents

Abstract

PURPOSE: To recognize destination before response at the arrival of a call in a substitute telephone terminal. CONSTITUTION: A subscriber information management section 11 stores data of an extension number of a substitute telephone terminal 3 corresponding to specific telephone terminals 4, 5. Upon the receipt of a communication request from the telephone terminal 2 by telephone terminals 4 or 5, a dial number analysis section 12 obtains an extension number of the corresponding substitute telephone terminal 3 from the subscriber information management section 11. A sub address conversion section 13 sends an extension number of the dialed specific telephone terminal 4 or 5 together with an extension number of a caller as a sub address to make communication connection to the substitute telephone terminal 3. Upon the receipt of a call, the substitute telephone terminal 3 displays a destination extension number together with an extension number of the caller as the indication of a caller sub address.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a private branch exchange, and more particularly to display control of a telephone terminal connected to an extension line.

[0002]

2. Description of the Related Art Today, a private branch exchange is widely used as an intermediary between an extension telephone and an outside telephone and an extension telephone and an extension telephone. In such a private branch exchange, a specific extension number is made to correspond to a surrogate extension number, and when a caller having the extension number makes a connection request to the other party of the specific extension number, the substitute extension number It has a so-called executive secretary function to make a connection request to the other party together with the extension number of the caller. Then, the extension number of the caller is displayed on the display of the extension telephone of the secretary who receives the transfer call to the executive.

[0003]

However, the conventional private branch exchange has the following problems because the control is only to display the extension number of the caller on the substitute extension telephone. That is, it is not possible to determine whether the call is a transfer call to a specific executive or the extension phone of the secretary itself. When a plurality of executive extension telephones are set for one secretary extension telephone, it is not possible to determine to which executive the call is received until the call is picked up. From this point of view, it has been desired to realize a private branch exchange capable of knowing, when an incoming call is received, whether it is a transfer telephone or a substitute extension telephone, before answering.

[0004]

The present invention adopts the following constitution in order to solve the above-mentioned problems. That is, the private branch exchange of the present invention associates the extension number of a specific telephone terminal with the extension number of a substitute telephone terminal, and from an arbitrary telephone terminal,
When there is a communication request to a specific telephone terminal, and when there is a communication request from a certain telephone terminal to a specific telephone terminal in the private branch exchange that makes a communication request to the substitute telephone terminal Is the identification data of a specific telephone terminal,
It is characterized in that an extension telephone call control unit for transmitting as display data at a substitute telephone terminal is provided.

Further, the extension call control unit in the above invention is a subscriber information management unit which indicates an extension number of a substitute telephone terminal corresponding to the extension number of a specific telephone terminal, and a telephone terminal of an arbitrary extension number which is specified. When there is a call connection request to the telephone terminal, a dial number analysis unit that refers to the subscriber information management unit and acquires the extension number of the corresponding substitute telephone terminal,
Based on the extension number of the substitute telephone terminal acquired by the dial number analysis unit, with the extension number of the caller, a sub-address conversion unit that sends the extension number of the specific telephone terminal as the calling sub-address, the substitute telephone terminal, It is characterized by having a caller subaddress display function corresponding to the caller number notification function of ISDN.

[0006]

In the private branch exchange of the present invention, when a communication request is made to a specific telephone terminal from an arbitrary telephone terminal,
The extension call control unit performs a communication connection operation with respect to the substitute telephone terminal and controls to display the identification data of the specific telephone terminal on the substitute telephone terminal.

Specifically, when a communication request is made from an arbitrary telephone terminal to a specific telephone terminal, the extension telephone call control section first causes the dial number analysis section to refer to the subscriber information management section, Acquires the extension number of a substitute telephone terminal corresponding to a specific telephone terminal. Next, the sub-address conversion unit sends the extension number of the caller's telephone terminal and the extension number of the telephone terminal to which the call is connected to the substitute telephone terminal as a sub-address to establish a communication connection to the substitute telephone terminal. To do.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a private branch exchange of the present invention. The illustrated private branch exchange 1 has a function of performing the exchange processing between the extension telephone and the office line side and the exchange processing between the extension telephones, but in the illustrated example, only the control system of the extension telephone according to this embodiment is shown. The configuration on the line side and the configuration of the exchange section regarding the internal line and the external line are omitted.

Further, the telephone terminal 2 connected to the private branch exchange 1 represents a caller's telephone terminal in this embodiment, and the telephone terminal 3 represents a secretary extension telephone as a substitute telephone terminal. Further, the telephone terminals 4 and 5 represent executive extension telephones as specific telephone terminals represented by the telephone terminal 3. Note that, of these telephone terminals 2 to 5, at least the substitute telephone terminal 3 is constituted by a telephone terminal having an ISDN function such as a subaddress display function. Further, hereinafter, the substitute telephone terminal 3 is the secretary telephone terminal 3 and the specific telephone terminals 4, 5
Will be described as executive telephone terminals 4 and 5.

When a call request is made from the caller's telephone terminal 2 to the executive telephone terminal 4 or 5, the extension telephone call control portion 10 provided in the private branch exchange 1 is connected to the executive telephone terminal 4.
Alternatively, it has a function of displaying the identification data of 5 on the secretary telephone terminal 3, and is provided with a subscriber information management unit 11, a dial number analysis unit 12, and a sub-address conversion unit 13. As the hardware configuration of the extension call control unit 10, a program for configuring the functions of the subscriber information management unit 11 to the sub-address conversion unit 13 and a program for storing and executing the program It is composed of a processor and a memory.

The subscriber information management unit 11 indicates the extension number of the secretarial telephone terminal 3 corresponding to the extension number of the executive telephone terminals 4 and 5. FIG. 2 is an explanatory diagram of the contents of the subscriber information management unit 11. That is, the subscriber information management unit 11 has subscriber information and extension subscriber information on the memory,
The secretary extension number of the secretary telephone terminal 3 is assigned in advance to the extension subscriber information in the arbitrary executive information. In this case, a plurality of extension numbers of the executive telephone terminals 4 and 5 can be designated for one extension number of the secretary telephone terminal 3. For example, in the case shown in FIG. 1, the executive extension number 5555 and the executive extension number 4444 are the secretary extension number 222, respectively.
It is configured to correspond to 2.

Returning to FIG. 1, the dial number analysis unit 12
From the telephone terminal of any extension number to the executive telephone terminals 4, 5
If there is a communication request to the secretary telephone terminal 3, the subscriber information management unit 11 is referred to, and the extension number of the secretary telephone terminal 3 is retrieved. The sub-address conversion unit 13 is based on the extension number of the secretarial telephone terminal 3 extracted by the dial number analysis unit 12, together with the extension number of the caller, the executive telephone terminals 4, 5
It has a function of transmitting the extension number of as a calling subaddress.

Next, the operation of this embodiment will be described. FIG.
3 is a flowchart showing the operation of the extension call control unit 10. First, as shown in FIG. 1, it is assumed that the executive extension number 5555 is dialed from the telephone terminal 2. As a result, in the extension call control unit 10, the dial number analysis unit 12 analyzes the dial number (step S1), and refers to the subscriber information management unit 11 using the extension number as an index (step S2). As a result, if the executive extension number 5555 has a secretary extension number (step S3), the sub-address conversion unit 13 adds the extension number 1234 of the caller's telephone terminal 2 together with the extension number 5555 of the executive. It is converted as a sub address (step S4). In this case, a subaddress is defined by adding a delimiter such as "*" between the extension number of the caller's telephone terminal 2 and the extension number of the other party.

Then, the sub-address is added and the secretary telephone terminal 3 is connected (step S5).
As a result, the caller's extension number 1234 and the executive telephone terminal 5's extension number 5555 are displayed on the display of the secretarial telephone terminal 3, as shown in FIG.

On the other hand, if the partner of the dialed extension number does not have the secretary extension number in step S3, the connection operation is performed to the telephone terminal of the dialed number (step S6).

As described above, according to the above embodiment, the extension number of the destination is displayed on the secretary telephone terminal 3, so that when the secretary telephone terminal 3 receives an incoming call, the incoming call is received. It is possible to determine whether it is an incoming call to an executive or a secretary, and in the case of an incoming call to an executive, it is possible to determine which incoming call to the executive before replying, and As a result, the functionality as the executive secretary function can be improved. Further, in the above embodiment, the destination is displayed on the secretarial telephone terminal 3 as a sub-address, so that the secretary telephone terminal 3 does not need a special configuration for displaying the destination and the ISDN telephone terminal having the sub-address display function. If so, any telephone terminal can be used.

In the above embodiment, the secretary telephone terminal 3 is
Although the extension numbers of the executive telephone terminals 4 and 5 are displayed, other than this, if the data can identify the destination,
For example, various identification data may be used, such as displaying the destination in kana. Further, the display means is not limited to the display on the display, and may be a voice display or the like.

[0018]

As described above, according to the private branch exchange of the present invention, when an arbitrary telephone terminal makes a communication request to a specific telephone terminal, the identification data of the specific telephone terminal is used as a proxy. Since it is displayed on the telephone terminal, it is possible to determine to whom the telephone is addressed before answering when the substitute telephone terminal receives an incoming call.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a private branch exchange of the present invention.

FIG. 2 is an explanatory diagram of contents of a subscriber information management unit in the private branch exchange of the present invention.

FIG. 3 is a flowchart showing an operation of an extension call control unit in the private branch exchange of the present invention.

[Explanation of symbols]

 1 Private branch exchange 2 Telephone terminal (sender) 3 Proxy telephone terminal (secretary telephone terminal) 4, 5 Specific telephone terminal (executive telephone terminal) 10 Extension call control unit 11 Subscriber information management unit 12 Dial number analysis unit 13 Sub address Converter

Claims (2)

[Claims] 1. An extension number of a specific telephone terminal is made to correspond to an extension number of a substitute telephone terminal, and when a communication request is made from an arbitrary telephone terminal to the specific telephone terminal, the substitute telephone number is called. In a private branch exchange that makes a communication request to a telephone terminal, when a communication request is made from the arbitrary telephone terminal to the specific telephone terminal, the identification data of the specific telephone terminal is sent to the substitute telephone. A private branch exchange comprising an extension telephone call control unit for transmitting as display data at a terminal. 2. The private branch exchange according to claim 1, wherein the proxy telephone terminal has a caller subaddress display function corresponding to the caller ID notification function of ISDN, and the extension call control unit is a specific telephone terminal. Subscriber information management section that indicates the extension number of the substitute telephone terminal corresponding to the extension number of the above, and if there is a call connection request from the telephone terminal of any extension number to the specific telephone terminal, the subscriber information management Section, the dial number analysis unit that acquires the extension number of the corresponding proxy telephone terminal, and the identification number together with the extension number of the caller based on the extension number of the proxy telephone terminal acquired by the dial number analysis unit. A private branch exchange provided with a sub-address conversion unit for transmitting the extension number of the telephone terminal as a calling sub-address.