JP2000307726A - Private automatic branch exchange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a speech state with a simple operation in the case of making a speech again by reserving a speech line with a current speech party if an extension should interrupt a speech temporarily during a speech with other extension with respect to a private automatic branch exchange where each extension terminal can transmit/receive a call to/from an extension and an external line. SOLUTION: An extension interface section 206 of the private automatic branch exchange 201 is provided with a status table section 207 to reserve a speech channel by managing detailed data of a reserved speech channel during a speech, and in the case of restarting the speech, the speech state is immediately brought by using the reserved speech channel and even when an opposite extension is busy, an interrupt tone is transmitted to an opposite party to inform the opposite party about it.

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 which can make and receive calls from an extension terminal to an extension and an outside line, and can use each additional service.

[0002]

2. Description of the Related Art FIG. 4 shows a configuration diagram of a conventional private branch exchange.

As shown in FIG. 4, a conventional private branch exchange 1
Reference numeral 01 denotes a line interface unit 119 for controlling an interface with a line, and a main control unit 1 for performing overall control.
10, an extension interface unit 120 that manages an interface with an extension, and the office line interface unit 11.
A communication path switch unit 112 for performing switch control of a communication path between the communication interface 9 and the extension interface unit 120, and a main storage unit 111 for storing data from the input / output unit.

[0004] The office line interface unit 119
Is configured to include a call end detecting unit 102, a dial sending unit 103, a communication path control unit 104, and a bell detecting unit 105.

The main control unit 110 includes a central control unit 106, a line selection unit 107, an input / output unit 108, and an external output unit 109.

Further, the extension interface unit 12
0 indicates a bell sending unit 113 for sending a bell to an extension in response to an incoming call from the office line, a communication path control unit 115 for controlling a communication path with the office line, and a hook detection for detecting that the extension telephone has gone off-hook. And a dial receiving unit 116 for receiving when the extension terminal dials.

The operation of the extension terminal A in the above-configured private branch exchange with the extension terminal B to suspend the call will be described.

The private branch exchange 101 considers that the extension terminal A and the extension terminal B are in a call state by connecting the call path (1). Extension terminal A becomes extension terminal B for leaving
When the on-hook operation is performed, the hook detection unit 114 of the extension interface unit 120 must be interrupted.
Detects that the extension terminal A is on-hook, and
5 is notified of the on-hook (end of the call) of the extension terminal A. When receiving the call termination notification of the extension terminal A, the communication path control unit 115 disconnects the communication path (1) with the extension terminal B during the call, notifies the extension terminal B of the disconnection, and notifies the extension terminal B of the fact. Release (1). Private branch exchange 101
Regards the released channel (1) as idle,
The call path (1) is used for a call of another extension. When the extension terminal A wants to resume the call with the extension terminal B again, the private branch exchange 101 searches for a communication path that is currently idle and establishes a communication path between the extension terminal A and the extension terminal B. Perform connection processing.

[0009]

However, in the conventional private automatic exchange 101, when a call request from the extension terminal A to the extension terminal B is made again, all the communication paths that the private automatic exchange 101 can own are idle. If not, there is a problem that the extension terminal A and the extension terminal B cannot resume the call.

The present invention is to solve the above-mentioned problem, and it is necessary to temporarily interrupt a call when the user leaves the desk during a call, and to perform a simple operation during the call when there is an intention to resume the call. This makes it possible to reserve the communication path used for the current call, to make the ICM key blink, to notify other extensions to that effect, and to resume the call, 1CM It is an object of the present invention to provide a private branch exchange that can resume a call using a reserved communication path by simply pressing a key. It is another object of the present invention to provide a private branch exchange which can notify a call resumption by transmitting an interrupt tone when the other party's extension is busy during the call resumption.

[0011]

In order to achieve this object, a private branch exchange according to the present invention has a configuration in which an extension interface unit is provided with a state table unit for managing a call extension, a call path, a call path state, and the like. .

According to the present invention, when a certain extension needs to temporarily suspend a call during an extension call, a simple operation can be used to reserve a communication path with the other party's extension and resume the call. In this case, it becomes possible to immediately enter the talking state using the reserved communication path. Also, at this time, it is possible to provide a private branch exchange which can notify the fact that the other party's extension is busy by sending an interrupt tone even if the extension is busy.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a central office interface unit for managing an interface with a central office line, an internal interface unit for managing an internal interface, a central office interface unit and an internal extension interface unit. A private branch exchange which is configured by a communication path switch unit for performing switch control of a communication path, a main storage unit for storing data from the input / output unit, and a main control unit for performing overall control. The interface unit includes a bell sending unit that sends a bell to an extension in response to an incoming call from the office line, a communication path control unit that controls a communication path with the office line, and a hook detection unit that detects that the extension telephone has gone off-hook. When,
It consists of a dial receiving unit that receives when the extension terminal dials, and a state table that manages the call extension, call path, and call path status for each call. If you have to temporarily suspend the call, you can reserve a call path with the extension of the other party by pressing the "Temporary stop call special number" + "Local extension number" and blink the ICM key of the extension terminal State and none,
When resuming a call, press the blinking ICM key to use the reserved communication path to re-establish a call. If the other party's extension is talking, an interrupt tone can be sent to notify that effect. It is a private branch exchange that was
If you need to interrupt the call during a call for any reason, you can reserve the call path in use with a simple operation, and if you want to resume the call, call immediately using the reserved call path State, and even if the extension of the other party is busy, it is possible to notify that fact by sending an interrupt tone, which improves convenience. Has an action.

According to a second aspect of the present invention, the private branch exchange according to the first aspect includes a status setting unit paired with a status table unit, and a certain extension reserves a communication path with a communication partner. In doing so, by pressing "temporary stop special number" + "local extension number" + "#" under the agreement of the call partner, the call path reservation is canceled for the call partner and the local extension. Call rejection can be set up until the call path reservation is released. At the same time, call rejection release is set for both parties.
By dialing with "#" added, it is possible to set a call rejection setting until the call is reserved and the call is resumed, thereby improving the convenience.

According to a third aspect of the present invention, a private branch exchange according to the first aspect performs a state change process when a state change request is made for a reserved communication path. And the other party's extension whose call path is reserved
By pressing the CM key + “extension number” + “#”,
The call path cancellation processing is performed, and a call resumption request from a reserved call partner is notified by a busy tone to that effect. This operation has the effect of canceling the call path reservation and improving the convenience for both calls.

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

(Embodiment 1) FIG. 1 is a configuration diagram of a private branch exchange according to Embodiment 1 of the present invention.

As shown in FIG. 1, the private branch exchange 201
Are a line interface unit 202 which controls an interface with a line, an line interface unit 206 which controls an extension interface, and a line interface unit 20 which controls a line interface.
2 and a telephone line switch unit 205 for performing switch control of a telephone line of the extension interface unit 206, a main storage unit 204 for storing data from the input / output unit, and a main control unit 203 for performing overall control. Is composed.

The extension interface unit 20
Reference numeral 6 denotes a bell sending unit 208 for sending a bell to an extension in response to an incoming call from the office line, a communication path control unit 209 for controlling a communication path with the office line, and hook detection for detecting that the extension telephone has gone off-hook. It comprises a section 210, a dial receiving section 211 for receiving when the extension terminal makes a dial input, and a state table section 207 for managing a call extension, a call path, a state of a call path, and the like for each call.

In the figure, reference numeral 212 denotes an external output device, and 213 denotes an input / output device.

The private branch exchange 2 constructed as described above.
The operation of No. 01 will be described below.

Extension A is talking to extension B. Extension A
If you need to temporarily suspend the call due to reasons such as leaving the office, notify extension B of that fact and, with agreement with extension B, from extension A, "temporary suspension special number" + "local extension" Dial the number. With this operation, the extension A has performed the call path reservation request processing to the private branch exchange 201. When the private branch exchange 201 receives the call path reservation request from the extension A, the state table section 207 of the extension interface section 26 receives the call path reservation request, the extension number used for the call, and the setting of the call path number used for the call. Register detailed data such as time. Based on the data registered in the state table unit 207, the call path control unit 209 performs a call path reservation process for both extensions. When a call path reservation setting is performed for the extension A and the extension B by the call path control unit 209,
In the extension terminal, the ICM key blinks to indicate the reserved communication path. When the call is resumed after the extension A is set for the call path reservation, when the blinking ICM key is pressed, the private branch exchange 201 checks that the extension for which the ICM key is pressed is A, and then checks the status table. 207 is notified that a reservation channel reconnection request has been issued from extension A. The state table unit 207 resets the call path reservation data for the extension A and the extension B, and the call path control unit 209 performs a call path reconnection process for the extension A and the extension B based on the data in the state table unit 207. I do. At this time, if the extension B is in a call with another extension or an outside line, an interrupt tone is transmitted to notify that there is a call reconnection request from the extension A.

(Embodiment 2) FIG. 2 is a configuration diagram of a private branch exchange 301 according to Embodiment 2 of the present invention.

As shown in FIG. 2, private branch exchange 301
Is characterized in that a state setting unit 314 is newly added to the configuration of the first embodiment in combination with the state table unit 307. The other components are the same as those of the first embodiment, and only the reference numerals are given, and the description is omitted.

Hereinafter, the operation will be described. As described in the first embodiment, when extension A reserves a communication path with extension B, "temporary stop special number" + "own extension number" is dialed. Subsequently, when "#" is dialed, the private branch exchange 301 registers the data in the state table unit 307 and notifies the state setting unit 314 that there is a call rejection setting request together with a call path reservation request. I do. The state setting unit 314 performs an incoming call rejection setting process for the extension A and the extension B based on the data of the state table 307. For the extension A and the extension B, rejection of the incoming call is set when the communication path is reserved. The private branch exchange 301 has extension A
When a call reconnection request is received from the
7 is notified. The state table unit 307 resets the data of the extension A and the extension B. Call path controller 31
5 performs the call reconnection processing and the call rejection release processing for the extension A and the extension B based on the data in the state table unit 307.

(Embodiment 3) FIG. 3 is a configuration diagram of a private branch exchange according to Embodiment 3 of the present invention.

As shown in FIG. 3, the private branch exchange 401
Has a configuration in which a state conversion unit 416 is newly added to the configuration of the first embodiment. The other components are the same as those of the first embodiment, and only the reference numerals are given, and the description is omitted.

The operation will be described below. At present, the extension A and the extension B are in a state where a call route is reserved from the extension A. Extension B is in a state of waiting for the reconnection of the call path from extension A. If the call cannot be answered even if there is a request for reconnection of the call path due to reasons such as leaving the desk, the ICM key is pressed (flashing).
Dial "+" extension number "+"#". By this operation, the extension B has made a call path reservation interruption request to the private automatic exchange 401. Private branch exchange 401
Receives the call path reservation interruption request from the extension B, searches the state table unit 407 to determine whether the call path reservation data of the extension B is registered, and if the data exists, notifies the state conversion unit 416 of the fact. I do. The state conversion unit 416 converts the data in the state table unit 407 into “reservation released”, and performs extension reservation processing for the extension B. After this processing, if there is a call path reconnection request from extension A, call path control section 415 returns a busy tone to extension A based on the reservation release data in state table section 407.

[0029]

As is apparent from the above description, according to the private branch exchange of the present invention, when a call must be interrupted for some reason during a call, a busy communication path is reserved by a simple operation. If you can resume the call,
It becomes possible to immediately enter a call state using the reserved call path. At this time, even if the extension of the other party is busy, it is possible to notify that fact by transmitting an interrupt tone, so that the convenience is further improved.

Further, when making a call path reservation, dialing with an additional "#" makes it possible to set an incoming call rejection during the call path reservation and the call resumption, thus improving the convenience. In addition, a call path reservation can be canceled by a simple operation even from an extension for which a call path has been reserved, and the convenience for both parties can be further improved.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram of a private branch exchange according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a private branch exchange according to a third embodiment of the present invention.

FIG. 4 is a block diagram of a conventional private branch exchange.

[Explanation of symbols]

 Reference Signs List 201 Private branch exchange 202 Central office interface unit 203 Main control unit 204 Main storage unit 205 Call path switch unit 206 Extension line interface unit 207 Status table unit 208 Bell sending unit 209 Call path control unit 210 Hook detection unit 211 Dial receiving unit 212 External output device 213 I / O device

Claims (4)

[Claims] A line interface unit for controlling an interface with a line, an extension interface unit for controlling an extension interface, a channel switch unit for controlling a switch of a channel between the line interface unit and the extension interface unit; A dial receiving unit for receiving when an extension terminal dials in, a state table unit for managing a call extension, a call path, a state of a call path, and the like for each call; and a main control unit for controlling the whole. The main controller unit, when a certain extension receives a call temporary stop special number that wants to temporarily suspend the call during an extension call, the number of the extension and the other party's extension number in the status table unit, Register the call path number used for the call and make the extension terminal indicate that it is temporarily suspended, and the extension wants to resume the call The operation returns to the communication state using the communication path indicated by the communication path number registered in the state table section, and controls to output an interrupt tone if the other party's extension is busy. Private branch exchange. 2. A line interface unit for controlling an interface with a station line, an extension interface unit for controlling an extension interface, a channel switch unit for controlling a switch of a channel between the station interface and the extension interface unit, A main storage unit that stores data from the input / output unit and a main control unit that performs overall control constitute a private branch exchange, and the extension interface unit is connected to an extension for an incoming call from an office line. A bell transmitting unit for transmitting a bell, a communication path control unit for controlling a communication path with the office line,
A hook detector that detects that the extension telephone has gone off-hook, a dial receiver that receives when the extension terminal dials in, a call extension, a call path,
It is composed of a state table section that manages the communication path state, etc.,
When a certain extension needs to be temporarily interrupted during an extension call, a call path with the extension of the other party can be reserved by pressing "temporary call suspension special number" + "own extension number". At the same time, the ICM key of the extension terminal is turned on and off, and when the call is resumed, the call is reactivated by pressing the flashing ICM key to use the reserved communication path. An automatic private branch exchange, wherein an interrupt tone is transmitted to notify the user of the fact. 3. A state setting section which is paired with a state table section. When a certain extension reserves a communication path with a communication partner, a "temporary stop special number" + "self" is agreed upon by the communication partner. By pressing the extension number “+” # ”, call rejection can be set for the other party and the extension until the call path reservation is released. 3. The private branch exchange according to claim 2, wherein incoming call rejection release is set for both. 4. A state conversion unit for performing a state change process when a state change request is made for a reserved communication path, and the other party's extension for which the communication path is reserved is blinking ICM key + "own extension". By pressing the number "+"#", a call path release process is performed, and a call resumption request from a reserved call partner is notified by a busy tone. Item 3. The private branch exchange according to item 2.