JPH07118821B2 - Telephone device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a telephone device having a call restriction function.

[Prior Art] Conventionally, in a telephone device having a telephone exchange function between a plurality of outside lines (station lines) and a plurality of extension lines or between extension lines, it has become possible to restrict outside line transmission from a connected extension line telephone. ing.

That is, when a connection extension telephone requests a connection to an outside line, the regulation is performed by making a judgment based on the regulation class of the telephone that made the request and the input telephone number of the outside connection destination.

For example, a class that restricts out-of-town calls is assigned to each extension phone in advance, and the outside line acquisition operation following the call request from the extension phone is performed (“0” input, input of the outside line direct dial number, etc.) is performed. Check this restriction class, and if a class that restricts out-of-town calls is assigned, even if the area code is subsequently entered, outbound restrictions are applied and the telephone number signal to the captured outside line is Control such as no output is performed.

[Problems to be Solved by the Invention] However, such a telephone device is used in another PBX (Private Branch Exchange).
Since it is sometimes used as a terminal of exchange equipment such as the above, the external line accommodated by the telephone device may be handled as the internal line of the PBX or the like. In addition, a telephone line (station line) from the public network
In some cases, extension lines from PBX, etc. are mixed and treated as outside lines.

In this way, when the telephone device is used as a terminal of the PBX, even if the extension telephone accommodated in the telephone device is assigned the out-of-town regulation class, the call to the PBX is allowed. In many cases. In such a case, after the extension telephone makes a call operation to capture the extension of the PBX accommodated as the outside line of the telephone device, the extension line for capturing the office line accommodated in the PBX, that is, the public line is used. If you perform an operation (normally "0" dial input), you can dial the area code again from the extension telephone, which makes it possible to make a long distance call regardless of the regulation class given to the extension telephone. Atsuta

[Means for Solving Problems] The present invention has been made for the purpose of solving the above problems, and one embodiment according to the present invention is as follows as one means for solving the above problems. With configuration.

That is, connecting means for connecting an extension of a plurality of telephones, an extension line and a public line of a private branch exchange equipped with a central office line, and connecting the telephone to the extension or the private branch exchange based on a telephone number input from the telephone. And processing means for connecting to an extension line or a public line.

[Operation] In such a configuration, when it is determined that the telephone number input from the telephone is a number for capturing the central line or the public line of the private branch exchange, the telephone number and the transmission restriction information of the telephone from the storage means are stored. It operates to restrict outgoing calls based on.

Embodiment An embodiment according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a configuration diagram of an external line connection path according to an embodiment of the present invention.

In the figure, 1 is a telephone device according to an embodiment of the present invention, 5 is a higher-level private branch exchange (PBX) to which the telephone device 1 is connected as a terminal device, and 6 and 7 are extension telephones connected to PBX 5. ~
An extension telephone 11 is connected to the telephone device 1. Further, reference numeral 21 is an extension line connecting the telephone device 1 and the PBX 5, and the telephone device 1 is handled in the same manner as the extension telephones 6 and 7 for the PBX 5. Further, 22 is a line from the public line network 30 connected to the telephone device 1, and 23 is a line from the public line network 30 connected to the PBX 5. The telephone device of the present embodiment is configured by the above-described overall configurations.

In the telephone device 1, reference numeral 2 is a call path switch network for controlling the call path formation and exchange control between the extension telephones 8 to 11 and the external connection lines 21 and 22, and 3 is stored in the memory 4, for example, the flow chart of FIG. Telephone device 1 according to the program shown in
The control unit CPU that controls the whole control, 4 is outside the program,
It is a memory for storing various data including the parameter information shown in FIG.

An example of storage of control information relating to call regulation in the memory 4 is shown in FIGS. 2 (A) and 2 (B). 2A shows an example of storage of control information regarding the extension telephones 8 to 11, and FIG. 2B shows an example of storage of control information regarding the connected external lines 21 and 22.

In FIG. 2 (A), 41 is a connected extension telephone number, 42 is an input telephone number storage area for storing telephone number information input from the extension telephone, and 43 is an outside call control class assigned to each extension telephone. This is a regulation class storage area to be stored, and as shown in the figure, the storage area is set for each telephone. For example, the restriction class "0" indicates a telephone that can make outbound calls, the restriction class "1" indicates a telephone that can only make calls on local lines, and the restriction class "2" indicates a telephone that can only make calls between extensions. Then, when the handset of each extension telephone is turned off and there is a call request, the CPU 1 stores the telephone number signal sent subsequently in the input telephone number storage area 42, and at the same time, makes an outside line capture or PBX line capture request operation. In the case of (for example, "0" transmission in which the first input is "0"), the regulation class is referred to, and when outside line acquisition is not possible, outside line acquisition is not performed thereafter. On the other hand, when the outside line can be captured, the outside line is captured and secured for the telephone.

On the other hand, in FIG. 2 (B), 51 is the connected external line number,
52 is the type of the outside line, 53 is a digit number storage area that stores the number of digits of the input number when the area code is sent to the outside line, and 54 is a higher-level PBX external line capture dial that stores the telephone number to be entered when making the outside line A number storage area, 55 is a telephone number storage area for storing the telephone number that has captured the outside line.

Hereinafter, the call restriction control of the telephone device of the present embodiment having the above configuration will be described with reference to the flow chart of FIG.

The following description will focus on the transmission control from the telephone 8 as a specific example.

First, in step S1, the CPU 3 of the telephone device 1 checks whether or not the handset of any of the connected extension telephones has been picked up (offhook). This may be determined by, for example, whether or not a DC loop is formed in the telephone connection line. If you have a phone that has been offhook, step
The process proceeds from step S1 to step S2, outputs a dial tone to the telephone set, and waits for the telephone number signal to be sent at step S3. When the number is sent, this number is stored in the corresponding input telephone number storage area 42 in the memory 4 in step S4. Then, in step S5-1, the first input telephone number signal is checked to determine whether or not it is an outside line acquisition request (for example, whether or not it is "0" input). If it is an outside line acquisition request, the process proceeds to step S5-2, where it is determined whether or not there is an empty line. If there is no idle line in step S5-2, the process proceeds to step S5-7, a line busy signal (busy tone) is output, and the process ends. If there is an empty line in step S5-2, the process proceeds to step S5-3 to capture the empty line. Then, the type of the line captured in step S5-4 is discriminated, and if the captured line is a line connected to the PBX, the request telephone line and the PBX line 21 are put in a call state, and the telephone number signal input thereafter is the line. It will be sent to PBX 5 via 21. Then, in step S6, the next telephone number input is waited for. When a number is input, in step S7 the number is sent to PBX5, in step S8 the input number is stored, and in step S9 the transmission input digit of memory 4 is stored. Check whether the number of digits specified in Numeral 53 has been entered. If the specified number of digits has not been input, the process returns to step S6, and if the specified number of digits has been input, the process proceeds to step S10. In step S10, the upper PBX external line acquisition dial number storage area 54 of the memory 4 is checked to see if the input telephone number is a request for acquisition of a station line (line 23 in FIG. 1) via the PBX 5. Here, if the request is not for a local line acquisition request but for a call to the telephone set 6 connected to the PBX 5, for example, the remaining telephone number signals that are subsequently sent are sent at step S11. As a result, the PBX 5 establishes a communication path with the other party. And in the following step S15,
The on-hook of the connected telephone is monitored, and when it is turned on, the process proceeds to step S16 to open the connection circuit and end the processing.

On the other hand, after acquiring the extension line 21 of the PBX5 at step S10,
When the upper PBX external line acquisition dial number for acquiring the station line 23 is input, the process proceeds to step S20 to read the restriction class 43 corresponding to the requesting telephone in the memory 4. Then, in step S21, it is checked whether or not there is a telephone that can make a call to the central line (to the local or toll line). If a request is made from a telephone set that cannot be dialed (for example, a regulation class "2"), the process proceeds to step S22, and the telephone number input thereafter is not transmitted from the telephone device 1, and the transmission regulation is performed. At this time, the line 21 may be opened and a busy tone or the like may be sent to the telephone. Then, in step S15, the line is released.

On the other hand, if it is possible to make a call to the central office line in step S21, the process proceeds to step S25 to wait for the input of the next telephone number. This should be checked whether it is "0". In the case of an out-of-town call request, it is checked in step S27 whether the out-of-town call can be made from the telephone according to the regulation class read further ahead. If the call cannot be made, proceed to step S22. If the call is possible, step S28
The telephone numbers input in step S29 are sequentially stored in the input telephone number storage area 42 in the memory 4, and the corresponding telephone numbers are sent to the PBX 5 in step S29. The PBX 5 outputs this telephone number to the line 23, and a call path with the desired destination telephone is formed. Then, the procedure goes to step S15 to prepare for opening the line.

If the call is made in the city at step S26, the process immediately goes to step S28.

By controlling in this way, even when a call is made via the PBX 5, it is possible to perform call restriction according to the restriction class for the connected extension telephone.

On the other hand, if the line captured in step S5-4 is a public line, the process proceeds to step S5-8 to wait for the next number input. When the next number is input, the process proceeds from step S5-8 to step S5-9, the input number is stored in the memory 4, the regulation class corresponding to the telephone is read from the memory 4 in the next step S31, and the step S21 is performed. move on. Then, under the same control as above, the telephone number signal input from the telephone is sent to the office line (22).

In the above description, the telephone number sent to the external line is the part excluding the acquisition request number, and in the case of input with "0045 ..." Shown at 42 in FIG. This is the request number. "045 ..." excluding "0" will be transmitted to the central office line.

[Effects of the Invention] As described above, according to the present invention, when the extension of the private branch exchange and the public line are mixed with the external line, even when the call is made to the public line through the private branch exchange, the direct public line is used. Even when making a call to, the call can be properly regulated.

[Brief description of drawings]

FIG. 1 is an external line connection route configuration diagram of an embodiment according to the present invention, and FIG. 2 (A) is a diagram showing an extension telephone control information storage unit in a memory of the telephone device shown in FIG. 1, FIG. B) is a diagram showing a connection external line control information storage unit in the memory of the telephone device shown in FIG. 1, and FIG. 3 is a call control flow chart of the telephone device shown in FIG. In the figure, 1 ... Telephone device, 2 ... Call path switch network, 3 ... CP
U, 4 ... Memory, 5 ... PBX, 6-11 ... Extension telephone, 21 ... PB
X connection line, 22,23 ... Public line network connection line, 30 ... Public line network.

Claims (1)

[Claims] 1. A connecting means for connecting extension lines of a plurality of telephone sets to an extension line and a public line of a private branch exchange having a central office line, and the extension line to the telephone line based on a telephone number input from the telephone set. And a processing unit for connecting to an extension line or a public line of the private branch exchange, wherein the processing unit determines that the telephone number is a number for capturing the central line or the public line of the private branch exchange, the telephone number And a telephone device, which restricts outgoing call based on the outgoing call restriction information of the telephone from the storage means.