JPS6245744B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a common control system for exchange services, and more particularly to a common control system for exchange services in an electronic private branch exchange.

In an electronic private branch exchange, a desired exchange service can be designated from among various exchange services, such as an attendant recall service, a guided call termination service, a fixed abbreviated dialing service, a variable abbreviated dialing service, etc., and provided to an extension.

FIG. 1 is a diagram showing an example of a conventional exchange service providing system in this type of electronic private branch exchange. The electronic private branch exchange shown in Figure 1 is designed to provide an attendant recall service, a guided call termination service, a fixed abbreviated dialing service, and a variable abbreviated dialing service at the start of operation, and the central processing unit CC is provided with an attendant recall service. A service module group 3 including a module 31, a guided call termination service module 32, a fixed abbreviated dial service module 33, and a variable abbreviated dial service module 34 is installed. Now, when a request for any exchange service occurs for a call that is currently being exchanged by the electronic private branch exchange, the central processing unit
An execution request sending unit 1 within the CC detects the request for the exchange service and transmits the request to the service execution control unit 2. The service execution control unit 2 determines whether the requested exchange service is included in the four types of exchange services specified to be provided by the electronic private branch exchange, and if it is included, the service module The corresponding service module 3X (X is any one of 1 to 4) in group 3 is activated to execute the desired exchange service. On the other hand, if the requested exchange service is not included in the four types of exchange services, the service prohibition execution unit 4 is activated;
A process such as notifying the exchange service requester that the exchange service cannot be provided is performed, for example, by using a busy tone or a notification voice.

As is clear from the above description, according to the conventional switching service providing system, the types of switching services that can be provided by the electronic private branch exchange are fixedly determined at the start of operation. Therefore, if there is temporary congestion of incoming calls on the central office line, for example, the central office line relay stand
In order to reduce the load on ATT handlers, we will temporarily suspend the provision of the attendant recall service or guided call reception service, or cancel the sender trunk due to too many variable abbreviated dialing calls from extension SUB.
If the OST becomes congested and fixed abbreviated dial outgoing calls are restricted, the type of exchange service to be provided may be changed at any time depending on the operational status of the electronic private branch exchange, such as temporarily discontinuing the provision of variable abbreviated dialing services. It was impossible to change.

An object of the present invention is to eliminate the drawbacks of the conventional exchange service providing system as described above, and to make it possible to provide an exchange service that matches the operational status of the electronic private branch exchange.

The purpose of this is to provide a central control unit with a service module and a service denial module that execute various exchange services, respectively, and to create an electronic system that activates the service module of the corresponding type when a service request occurs to provide or deny the exchange service. In the private branch exchange, an exchange service common control section is provided in the central control section, and a service provision specification means for specifying whether or not the exchange service can be provided for each type is provided from the outside to the exchange service common control section. This is achieved by configuring the common control unit to refer to the designation by the service provision availability designation means based on the requested service type when a service request is generated, and to activate a corresponding service module or a service denial module based on the designation. .

An embodiment of the present invention will be described below with reference to FIG. FIG. 2 is a diagram showing an exchange service common control method according to an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures. The electronic private branch exchange shown in Figure 2 also has a central processing unit CC equipped with a relay stand so that it can provide relay recall service, guided call termination service, fixed abbreviated dialing service, and variable abbreviated dialing service as in Figure 1. A service module group 3 including a recall service module 31, a guided call termination service module 32, a fixed abbreviated dial service module 33, and a variable abbreviated dial service module 34 is installed. Further, the central processing unit CC is attached with designated telephone keys SK1 to SK4 that specify whether or not to provide the above-mentioned four types of exchange services, and by operating designated telephone keys SK1 to SK4, the corresponding exchange service is provided. possible.
For example, while the designated telephone key SK1 is in operation, the relay stand recall service can be provided, and while the designated telephone key SK1 is being restored, the service cannot be provided. Similarly, the operating state of the designated telephone key SK2 specifies whether or not the guidance call reception service can be provided, the operating state of the designated telephone key SK3 specifies whether the fixed abbreviated dial service can be provided, and the operating state of the designated telephone key SK4 specifies whether the fixed abbreviated dial service can be provided. Whether or not it can be provided is specified. The operating status of these designated keys SK1 to SK4 is determined by the central processing unit.
It is constantly monitored by the telephone key information reading section 51 of the exchange service common control section 5 provided in the CC, and the telephone key information reading section 51 transmits the read telephone key operation information to the service correspondence conversion section 52. Service compatible conversion unit 5
2 converts the received telephone key operation report into information on whether or not the corresponding exchange service can be provided and holds it. If all the designated telephone keys SK1 to SK4 are currently in operation, the service correspondence conversion unit 52 holds information on whether or not all four types of exchange services can be provided. In this state, when a request for any of the four types of switching services (for example, attendant recall service) is generated from a call that is being processed by the electronic private branch exchange, the service execution request sending unit 1 of the central processing unit CC It detects a request for the exchange service and transmits the request to the exchange service common control unit 5. In the exchange service common control section 5, the service provision determination section 53 refers to the provision availability information held in the service correspondence conversion section 52, confirms that the requested relay stand recall service can be provided, and then provides the service. The request is transmitted to the execution control unit 2. Upon receiving the request, the service execution control unit 2 activates the relay recall service module 31 in the service module group 3 in the same process as shown in FIG. 1, and executes the desired relay recall service. Next, when the designated telephone key SK1 is restored in order to temporarily suspend the attendant recall service due to congestion of incoming calls on the central office line, the telephone key information reading section 51 transfers the recovery information of the designated telephone key SK1 to the service compatible conversion section. 52, and the service correspondence conversion unit 52 determines that the provision availability information held by the service correspondence conversion unit 52 indicates that the relay stand recall service cannot be provided. In this state, when a request for relay recall service is generated from a call that is being exchanged by the electronic private branch exchange, and the service execution request sending unit 1 transmits the request to the exchange service common control unit 5, the service provision decision is made. The unit 53 refers to the provision availability information held in the service correspondence conversion unit 52, identifies that the requested relay stand recall service cannot be provided, starts the service prohibition execution unit 4, and performs the same process as shown in FIG. , executes a process of notifying the requester that the attendant recall service cannot be provided. Eventually, when the congestion of incoming calls on the central office line is resolved and the designated telephone key SK1 is operated in order to restart the relay stand recall service, the telephone key information reading section 51 transmits the operation information of the designated telephone key SK1 to the service correspondence conversion section 52. However, the relay stand recall service returns the provision availability information held in the service correspondence conversion unit 52 to the provision availability information. Therefore, even if a request for the relay console recall service occurs thereafter, the relay console recall service module 31 is activated as described above.

As is clear from the above explanation, according to this embodiment, the relay stand recall service provided in the electronic private branch exchange can be designated at any time as to whether or not it can be provided by operating or restoring the designated telephone key SK1. .

Note that FIG. 2 is only one embodiment of the present invention, and for example, the exchange service whose provision is temporarily discontinued is not limited to the attendant recall service, and may be used for other guidance call reception services, fixed abbreviation services, etc. For dialing service and variable speed dialing service, the corresponding designated telephone keys SK2, SK3 and SK
4 is carried out in the same manner, and the effects of the present invention do not change in either case. Further, the designation of whether or not the exchange service can be provided is not limited to the designated electronic keys SK1 to SK4, and many other modifications may be considered, but the effects of the present invention remain the same in any case. Furthermore, the types of exchange services provided by the electronic private branch exchange are not limited to those shown in the drawings, and many other modifications may be considered, but the effects of the present invention will not change in any case.

As described above, according to the present invention, the type of exchange service to be provided among the exchange services provided by the electronic private branch exchange can be specified at any time, and it is possible to provide exchange services that match the operational status of the electronic private branch exchange.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a conventional exchange service providing system, and FIG. 2 is a diagram showing an exchange service common control system according to an embodiment of the present invention. In the diagram, SUB is an extension, TRK is a trunk,
OST is the sender trunk, OPT is the handler trunk,
ATT is the central office relay board, NW is the network, CC is the central control unit, MM is the main memory, SK1 to SK
4 is a designated telephone key, 1 is a service execution request sending unit, 2
3 is a service module group; 31 is a relay stand recall service module;
32 is a guided call reception service module, 33 is a fixed abbreviated dial service module, 34 is a variable abbreviated dial service module, 4 is a service prohibition execution unit, 5 is an exchange service common control unit, 51
52 is a telephone key information reading unit, 52 is a service compatible conversion unit,
Reference numeral 53 indicates a service provision determination unit.

Claims (1)

[Claims] 1. A central control unit is provided with a service module and a service denial module that respectively execute various exchange services, and when a service request occurs, the corresponding type of service module is activated to provide or deny the exchange service to an electronic private branch exchange. An exchange service common control section is provided in the central control section, and a service provision specification means for specifying whether or not the exchange service can be provided for each type is provided from the outside to the exchange service common control section, and the exchange service common control section is a common exchange service characterized in that when a service request is generated, the specification by the service provision specification means is referred to based on the requested service type, and the corresponding service module or service denial module is activated based on the specification. control method.