JPH02306751A - Private branch of exchange - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a private branch exchange and a private branch exchange that enables the transfer of control information for extension telephones housed in the button private branch exchange.

2. Description of the Related Art Conventionally, as control data for controlling an extension telephone housed in a private branch exchange, there is data that can be set by a user to suit the purpose of use and to make it easier for the user to use the telephone. The type of extension terminal, extension number, speed dial data, etc. are types of control data. A separate control data file is then constructed for each extension. Also, one of the control data is a service class.

By the way, these service classes are distinguished by the level of service and the number of available functions. It may be usable. On the other hand, if the service class is low, some functions cannot be used. For example, one of the things that differs depending on the service class is restrictions on making outside calls. In other words, if you belong to the highest service class, you can make international calls in addition to regular outside calls, if you belong to the middle service class, you can only make regular outside calls, and if you belong to the lowest service class, you can only make regular outside calls. Otherwise, you will not be able to make outside calls. Furthermore, there is a limit to the number of extensions that can be assigned to a higher service class depending on the capacity of the system. Usually, a service class is assigned according to the rank of the user of the extension telephone.

Problems to be Solved by the Invention However, with the above conventional method, when a user of a certain extension borrows the nearest telephone to use it at another location, the control data is different, so the user cannot use his own extension. cannot be used in the same way. For example, if the service class of the nearest telephone is lower than the class of the extension telephone that you normally use, you may not be able to use the service that you received with your extension telephone, which may be inconvenient. It would be convenient to configure the service class to be freely changed on each terminal, even temporarily, but if a large number of users change to a higher class at the same time, This may extend the limits of the system's capabilities and may prevent it from operating normally.

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to receive the same service as your own extension phone when you use another extension phone due to being away from your seat, etc.
Furthermore, the present invention provides a private branch exchange that does not exceed the limits of the system's capabilities.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention provides a downgrading processing means for changing the service class of an extension to a lower class according to a command from each extension terminal; Only if the service class of the specified extension has been changed to a lower class by the downgrade change processing means according to the change command and extension designation signal, only the service class of the certain extension is changed to the conventional service of the specified extension. We have provided a way to process changes to the class.

Effect of the present invention With the above-described configuration, when you leave your seat and move to another location and use the nearest extension telephone, your own extension telephone is not locked so that it cannot be used in a higher service class. As a result, you will not be able to receive high-quality services using the nearest extension telephone listed above.

Embodiment FIG. 1 shows a configuration diagram of an embodiment of the present invention.

In FIG. 1, 100 is a private branch exchange, 101 to 104
is an extension telephone connected to the extension of the private branch exchange 100, 1
05 to 106 are outside lines connected to the private branch exchange 100. 107 to 110 are extension circuits for detecting calls from extension telephones 101 to 104, and 111 to 112 are external lines 105.
- an external line circuit that detects ringing signals from 106, etc.;
113 is a dial receiving circuit that receives dials from the extension telephones 101 to 104; 114 is a tone circuit that generates dial tones; and 115 is a call path switch that includes extension circuits 107 to 110, outside line circuits 105 to 106, tone circuit 114, and Dial receiving circuits 113 can be arbitrarily connected. 116 is a control unit, 117 is a storage unit, and
The unit 116 performs exchange control while inputting and outputting control data to and from the extension circuits 107 to 110, etc., and data necessary for exchange control is stored in the storage unit 117. 118 is extension phone 1
119 is a dial generation circuit for sending a dial from the extension telephone 101 to the private branch exchange 100.

As in the case described above, service class information is organized for each extension boat as one of the control data, and is stored in the storage unit 117.
is stored in. The service class item includes outside line call level information that determines whether or not outside line calls can be made. Therefore, if an extension assigned to a class in which outside calls are prohibited is temporarily changed to a class in which outside calls can be made, then outside calls can be made. In other words, if a user of a certain extension phone wants to make an outside call using an extension phone other than his own, he can lock his own extension phone in advance so that he cannot make outside calls. Even if the extension you are trying to make is of a lower class and is set so that outside calls cannot be made, it is possible to temporarily change the service class of the telephone to the service class of the user's own extension and make outside calls. It is configured so that it can be done.

The operation of the private branch exchange of this embodiment configured as described above will be described below in the case of making an outside line call.

First, the second section describes the procedure for preventing the user of the extension telephone 101 from making outside calls when he or she is away from his or her desk.
This will be explained based on the diagram and FIG. When the extension telephone 101 goes off-hook, the extension circuit 107 causes the controller 11 to
6 detects a call and controls the communication path switch 115 to connect the tone circuit 114 and dial reception circuit 113 to the extension circuit 107.

At that time, a dial tone is sent from the tone circuit 114 to the extension telephone 101 (201). The user inputs a dial signal on the extension telephone 101 indicating a request to prohibit outside calls, and the dial signal is transmitted from the dial generation circuit 119 of the extension telephone 101 to the exchange. A dial signal sent from the extension telephone 101 via the extension circuit 107 is received by the dial reception circuit 113 (202). The received dial is analyzed (203). If the result of the dial analysis is a request to prohibit outgoing calls (proceeding to the process shown in FIG. 3), the process continues to wait for the next lock number to be sent from the extension telephone 101. The user also enters a lock number to prevent unauthorized release of this function by another person. The lock number is transmitted from the dial generation circuit 119 to the exchange side, and is transmitted by the dial reception circuit 113. The lock number is received (301).By the way, this lock number is a number known only to the user of the extension telephone 101 and serves as a kind of password.The input lock number is stored in the storage unit 1.
17 in the relevant extension control data area (302),
Based on the information, a process is performed to prohibit outside calls from the extension telephone (303), and until this is canceled, outside calls from the extension telephone are prohibited.

By locking outside calls while you are away, you will not be able to make outside calls without your permission and be charged additional telephone charges.

Next, a procedure for enabling the user of the extension telephone 101 to make an outside call from his/her own telephone while sitting in the back seat will be described with reference to FIGS. 2 and 4. Extension telephone 101 is off.
When hooked, the tone circuit 114 and dial reception circuit 113 are connected to the extension circuit 107 as before. Then, a dial tone is output from the tone circuit 114 to the extension telephone 1.
01 (201). User has extension telephone 10
At step 1, a dial signal indicating a request to cancel the prohibition on making external calls is sent. Then, from the extension telephone 101 to the extension circuit 1
The dial signal sent via 07 is received by the dial receiving circuit 113 (202). On the exchange side, the received dial signal is analyzed (203), and if the result of the dial analysis is a request to cancel the prohibition on making external calls, the lock number is further input via the dial reception circuit 113 (401).
). Compare the input lock number with the lock number stored in the corresponding extension control data area of the storage unit 117 (402).
), if they match, the extension telephone is released from the outside call prohibition state, and thereafter, processing is performed so that outside calls can be resumed from the extension telephone (403). If they do not match, a busy tone is sent from the tone circuit 114 to the extension telephone 101 and a recovery process is performed (404).

Finally, a procedure for enabling the user of the extension telephone 101 to make an outside call from a telephone other than his/her own extension telephone under the same conditions as his/her own extension telephone when he/she is away from his or her desk will be explained based on FIGS. 2 and 5. When the extension telephone 101 goes off-hook, the tone circuit 114 and the dial reception circuit 113 are connected to the extension circuit 107 as before, and a dial tone is sent to the extension telephone 101 (201). The user inputs a dial signal using the extension telephone a101, and the dial signal from the dial generating circuit 119 is sent to the dial receiving circuit 1.
13 (202). Then, the exchange side analyzes the received dial signal (203), and if the result of the dial analysis is a request to change the outside line call restriction level, it continues to wait for the next lock number that should be sent from the extension telephone 101. The user further inputs an extension number and a lock number for indicating the source of movement via the dial reception circuit 113 on the extension telephone 101. The extension number and lock number input by the user are received by the dial reception circuit 113 (501). Next, check whether the extension telephone with the input extension number is prohibited from making outside calls (50
2). If the state is not prohibited, a busy tone is sent from the tone circuit 114 to the extension telephone 101 and a recovery process is performed (
506). Next, the input lock number is compared with the lock number stored in the control data area of the specified extension for which outside calls are prohibited in the storage unit 117 (503), and if they do not match, a busy tone is sent from the tone circuit 114. A recovery process is performed by sending the message to the extension telephone 101 (506). If they match, read out the outside line call restriction level information stored in the control data area of the designated extension that is prohibited from making outside line calls (504), and read out the outside line call restriction level information stored in the control data area of the specified extension line that is prohibited from making outside line calls (504). The external line call restriction level information read earlier is stored in the own extension control data area located at 117. Then, for an outside call made from the extension phone, the outside call restriction level information assigned to the user's own extension phone is applied only to one call, instead of the outside call restriction level information of the extension phone. Process as follows (
505). Therefore, a person making an outside call can make an outside call from another extension telephone under the same conditions as making an outside call from his/her own extension telephone.

Furthermore, in this embodiment, the user can use the service not only when making an outside call but also using the nearest telephone anywhere within the range where the exchange provides service, as well as using his or her own extension telephone.

Effects of the Invention As described above, the present invention provides a downgrading processing means that changes the service class of an extension to a lower class according to a command from each extension terminal, and a downgrade change processing means that changes the service class of an extension to a lower class according to a command from an extension terminal, and a change command and an extension designation signal from a certain extension. upgrade change processing for changing only the service class of the specified extension to the conventional service class of the specified extension only when the service class of the specified extension has been changed to a lower class by the downgrade change processing means; By providing a means to do so, when using an extension telephone other than your own, you can use it under the same conditions as if your own extension telephone is of a higher class, and you will receive the same service as if you were using your own extension telephone. At the same time, at that time, the personal extension telephone mentioned above is locked so that it cannot operate at the normal high service level, so the number of extensions with a high service level increases from the perspective of the entire system. There is no need to worry about this, and it is possible to continue normal operation at all times.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing one embodiment of the present invention, Fig. 2, Fig. 3
4 and 5 are flowcharts showing the processing in the same embodiment. 100: Private branch exchange 101-104: Extension telephones 105-106: Outside lines 107-11O: Extension circuits 111-112; Outside line circuit 113: Dial reception circuit 114 Number generation circuit 115: Call path switch 116: Control unit 117: Memory Part 118: Call circuit 119: Dial generation circuit Name of agent Patent attorney Shigetaka Awano and 1 other person 1g5. t
Ot-Exterior Figure 2 Figure 4 Figure 5

Claims (1)

[Scope of Claims] Downgrading processing means comprising a data file storing control data including service class information for each extension, and changing the service class of the extension to a lower class in accordance with a command from an extension terminal. , When a change request signal is sent from a certain extension terminal, the service class of the extension designated by the extension designation signal also sent from the same extension terminal is changed to a lower class by the downgrade change processing means. A private branch exchange characterized in that it is provided with an upgrade change processing means for changing only the service class of the certain extension to the conventional service class of the specified extension.