JPH0758842A - Private branch exchange system - Google Patents

Abstract

PURPOSE:To allow an operator to effectively and easily revise dialing restriction taking a job state into account based on dialing of a telephone set. CONSTITUTION:A call processing circuit 5 receives an off-hook detection result of a telephone set 8 from an off-hook detection circuit 4. When a dial signal of a service specific number from the telephone set 8 received through a subscriber circuit 6 is discriminated to be a revision request of station data, a station data write circuit 3 is started and station data (call restriction data) stored in the station data circuit 1 are revised according to a dial signal from the telephone set 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a call regulation selecting method for a private branch exchange system. In particular, it relates to operation management of station data managed by the private branch exchange system.

[0002]

2. Description of the Related Art Conventionally, a private branch exchange system fixedly restricts outgoing calls of corresponding subscribers by including outgoing call restriction data in station data of telephones accommodated in the private branch exchange.

However, such a conventional transmission restriction selection method has a drawback that when the transmission restriction data is changed, the maintenance department of the exchange must be requested to change the station data of the person concerned. Further, there is a proposal to incorporate a transmission restriction circuit into a telephone terminal device to restrict connection (Japanese Patent Laid-Open No. 60-64557 and Japanese Patent Laid-Open No. 132951).
However, both of them have the drawback of being expensive, such as incorporating a transmission control circuit.

The present invention solves the above-mentioned drawbacks, and it is an object of the present invention to provide a private branch exchange system in which an operator can effectively and easily change a call restriction in consideration of a business situation from a dial of a telephone. .

[0005]

SUMMARY OF THE INVENTION The present invention is a subscriber circuit which accommodates telephone lines, and an extension trunk circuit which is connected to the subscriber circuit and accommodates office lines and other subscriber extensions.
A detection circuit which is connected to the subscriber circuit and detects an off-hook signal of a hook switch coming to the telephone line;
A call processing circuit that is connected to the subscriber circuit and the extension trunk circuit and performs connection processing between the telephone line and the trunk and extension based on the off-hook detection result of this detection circuit, and specifies the call regulation of the telephone line In a private branch exchange system including a station data circuit that holds station data including call restriction data, the call processing circuit performs a change process in response to a request to change station data from the telephone line input through the subscriber circuit. And a station data writing circuit for changing the station data started by the change processing means and held in the station data circuit according to a dial signal coming to the telephone line.

Further, in the present invention, the outgoing call restriction includes a restriction that allows only a telephone set accommodated in the subscriber circuit to make an outgoing call and a restriction that only allows an incoming call to the telephone set accommodated in the subscriber circuit. You can

Further, according to the present invention, the change processing means may include means for judging that the request is a change of station data based on an off-hook detection result of the detection circuit and a service special number dial from the telephone line.

Further, according to the present invention, the station data may include a subscriber number and a terminal attribute of a subscriber accommodated in this system.

Further, according to the present invention, when the off-hook detection result of the detection circuit is input, the call regulation data is read from the station data circuit and the call regulation selection processing information is determined from the call regulation data and the current call state. An outgoing call restriction selection circuit is provided to the call processing circuit through a detection circuit, and the call processing circuit can include means for performing outgoing call restriction processing based on the determined outgoing call restriction selection processing information.

[0010]

The operator dials the service special number of the telephone and inputs the station data (transmission control data) to be changed by the dial signal. The call processing circuit determines from the dial signal of the service special number that the request is for changing the station data, and activates the station data writing circuit to change the station data. This allows
The operator can effectively and easily change the call restriction in consideration of the business situation from the dial of the telephone.

[0011]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a private branch exchange system according to an embodiment of the present invention. In FIG. 1, a private branch exchange system 9 includes a subscriber circuit 6 that accommodates a telephone line (to which a telephone 8 is connected), and an extension trunk circuit that is connected to the subscriber circuit 6 and that accommodates an office line and other subscriber extensions. 7, an off-hook detection circuit 4 as a detection circuit connected to the subscriber circuit 6 for detecting an off-hook signal of a hook switch coming to a telephone line, and an off-hook detection circuit 4 connected to the subscriber circuit 6 and the extension trunk circuit 7. A call processing circuit 5 that performs connection processing between the telephone line and the trunk or extension based on the detection result, and a station data circuit 1 that holds station data including transmission regulation data that specifies transmission regulation of the telephone line.

A feature of the present invention is that the call processing circuit 5 includes a change processing means for performing a change process in response to a change request for station data input from the telephone line through the subscriber circuit 6, and the change is made. And a station data writing circuit 3 for changing the station data started by the processing means and held in the station data circuit 1 in accordance with a dial signal coming to the telephone line.

Further, the outgoing call restriction includes a restriction that allows only a telephone set accommodated in the subscriber circuit 6 to make a call and a restriction that only allows an incoming call to the telephone set accommodated in the subscriber circuit 6.

Further, the change processing means includes means for judging that the request is for change of station data by the off-hook detection result of the off-hook detection circuit and dialing of the service special number from the telephone line.

Further, the station data includes subscriber numbers and terminal attributes of subscribers accommodated in the private branch exchange system 9.

Further, when the off-hook detection result of the off-hook detection circuit 4 is input, the transmission restriction data is read out from the station data circuit 1, and the transmission restriction selection processing information is determined from the transmission restriction data and the current call state to determine the off-hook detection circuit 4. The call restriction circuit 2 is provided to the call processing circuit 5 through the call restriction circuit 2, and the call processing circuit 5 includes means for performing a call restriction process based on the determined call restriction selection process information.

The operation of the private branch exchange system having such a configuration will be described.

FIG. 2 is a flow chart showing the process of changing the transmission restriction data of the private branch exchange system of the present invention. Figure 3
6 is a flowchart showing a call restriction selection process of the private branch exchange system of the present invention. FIG. 4 is a flow chart showing the processing of the transmission restriction selection circuit of the private branch exchange system of the present invention. In FIG. 1, a station data circuit 1 has subscriber numbers, terminal attributes, and call regulation data of subscribers accommodated in a private branch exchange, and is used when calling from subscribers and from other extension subscribers and trunks. When the call arrives, it is activated from the transmission restriction selection circuit and passes the station data of the corresponding subscriber.

The transmission restriction selection circuit 2 determines the operation to be performed from the transmission restriction data of the station data read from the station data circuit 1 and the current call state (for example, during transmission, reception, and communication). The station data writing circuit 3 is activated when the call processing circuit 5 issues a request to change the transmission restriction data of the subscriber data, and changes the subscriber data (transmission restriction data) held in the station data circuit 1. To do.

The off-hook detection circuit 4 monitors the state of the telephone 8. The subscriber circuit 6 accommodates the telephone set 8, notifies the call processing circuit 5 of the number information when making a call, and makes a call when receiving a call. During communication, information such as voice is connected to the call path. The extension trunk circuit 7 interfaces with other subscriber lines and office lines of the same private branch exchange system 9.

Conventionally, station data must be set at the start of operation of a private branch exchange including the call regulation data of the corresponding subscriber using a maintenance operation terminal, or the call regulation data must be changed due to a change in the operation of the relevant subscriber. At that time, the station data was changed via the private branch exchange operation management department.

In FIG. 2, this embodiment changes the station data registered in the station data circuit from the subscriber's telephone 8 without going through the operation management section. When the off-hook detection circuit 4 detects "off-hook" of the telephone 8 and the telephone 8 dials a service special number (for example, 1), the call processing circuit 5 recognizes that the extension and the trunk are not connected, and this service special number Sometimes it is a station data change request, so the station data circuit 1 is sent via the station data writing circuit 3.
It is possible to arbitrarily change the station data (call restriction data) of the corresponding subscriber managed by the.

2 to 4, how call processing is performed by the station data changed according to this embodiment will be described below. If the call regulation data of the current station data of the telephone 8 is "call origination only", the extension trunk circuit 7
When the incoming call is generated from the telephone 8 to the off-hook detection circuit 4 and the outgoing call restriction selection circuit 2 is activated, the outgoing call restriction data is "outgoing call only", so the incoming call busy is sent to the extension trunk circuit 7 which is the caller. Upon notification, the call processing circuit 5 performs disconnection processing.

When the outgoing call restriction data in the station data of the telephone 8 is "incoming call only", the off-hook detection circuit 4 detects "off-hook" of the telephone 8 and activates the outgoing call restriction selection circuit 2. Since it is "only", the telephone 8 is notified of the busy tone and the call cannot be made.

Therefore, for example, when the business of the sales department accommodated in the same private branch exchange system is busy, the phones of the sales department can be efficiently used by restricting the phones of the other departments to receive only incoming calls. Further, when the user is busy and there is no one to answer instead, it is possible to restrict his / her own telephone and avoid making an outgoing call only.

[0027]

As described above, the present invention has an excellent effect that the operator can effectively and easily change the call regulation in consideration of the business situation from the dial of the telephone.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a private branch exchange system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the processing when the call processing circuit of the private branch exchange system of the present invention makes a call.

FIG. 3 is a flowchart showing the processing when the call processing circuit of the private branch exchange system of the present invention receives an incoming call.

FIG. 4 is a flowchart showing the processing of a transmission restriction selection circuit of the private branch exchange system of the present invention.

[Explanation of symbols]

 1 station data circuit 2 transmission restriction selection circuit 3 station data writing circuit 4 off-hook detection circuit 5 call processing circuit 6 subscriber circuit 7 extension trunk circuit 8 telephone 9 private branch exchange system

Claims (5)

[Claims] 1. A subscriber circuit accommodating a telephone line, an extension trunk circuit connected to this subscriber circuit and accommodating an office line and other subscriber extensions, and a telephone circuit connected to the subscriber circuit and arriving at the telephone line. A detection circuit for detecting an off-hook signal of a hook switch, and a call for connecting the telephone line and the trunk or extension based on the off-hook detection result of the detection circuit connected to the subscriber circuit and the extension trunk circuit. In a private branch exchange system comprising a processing circuit and a station data circuit holding station data including transmission restriction data designating transmission restriction of the telephone line, the call processing circuit inputs the telephone line through the subscriber circuit. Change processing means for performing change processing in response to a change request for station data from the Private branch exchange system, characterized in that a station data write circuit for changing in accordance with dialing signal arriving the station data held in the data circuit to the telephone line. 2. The call restriction includes a restriction that allows only a telephone set accommodated in the subscriber circuit to make a call and a restriction that allows only an incoming call of a telephone set in the subscriber circuit. Private branch exchange system. 3. The private branch exchange system according to claim 1, wherein said change processing means includes means for judging that the request is a change of station data, based on an off-hook detection result of said detection circuit and dialing of a service special number from said telephone line. 4. The private branch exchange system according to claim 1, wherein the station data includes subscriber numbers and terminal attributes of subscribers accommodated in the system. 5. When the off-hook detection result of the detection circuit is input, transmission restriction data is read from the station data circuit, transmission restriction selection processing information is determined from the transmission restriction data and the current call status, and the transmission restriction selection processing information is passed through the detection circuit. 2. The private branch exchange system according to claim 1, further comprising a call restriction circuit for giving a call restriction to the call processing circuit, wherein the call processing circuit includes means for performing a call restriction process based on the determined call restriction selection process information.