JPS6294096A - Call connection state decentralized control system for electronic exchange - Google Patents

Abstract

PURPOSE:To localize services offered by an electronic exchange on a specific subscriber and trunk and to allow the subscribers and trunks at both incoming and outgoing sides to independently receive sevices by decentralizing and controlling call connection information. CONSTITUTION:A subscriber terminal 3 stores containing position number of the outgoing trunk 5, while an outgoing terminal 5 stores the contain number of the subscriber terminal 3. If the usbscriber terminal 3 is disconnected, a disconnection signal is transmitted to the containing position number of the outgoing trunk 5, which is controlled as call connection information. In the outgoing trunk 5, its disconnection processing is executed as a disconnection signal reception from an opposite party. For executing three parties' call, connectoin states 4a, 4b, 6 and 8 show connection information on respective calls of subscriber terminals 3a and 3b, the outgoing trunk 5 and a conference trunk 7, and are independently controlled. Information on three parties' call is controlled in a state where the conference trunk 7 is in a call connection state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a call connection status distributed management system for m slave exchanges that manages call connection status from call origination to call termination in a storage program type electronic switching control system. % Expression % [Prior Art] With the development of communication networks in recent years, the blades and screws required for switchboards have become more diverse. In particular, private branch exchanges need to provide extremely versatile services as office automation advances in business offices. FIG. 3 is a block diagram showing a conventional call connection state management system of an electronic exchange. In the figure, 1 is a network whose call connection information is shown as connection state 2, 3 is a subscriber terminal whose call state is shown as subscriber state 4, and 5 is an outgoing trunk whose call state is shown as trunk state 6.

Note that the network 1 includes the subscriber terminal 3 and the outgoing trunk 50.
Is there a communication path formed between them? It shows.

In the call connection state management method of the electronic exchange with this configuration, even in the switching software, the call state of subscriber terminal 3 is set to subscriber state 4, and the call state of outgoing trunk 5 is set to trunk state 6 and L2, respectively. However, the call connection information is centrally managed in the connection state 3 connected from the subscriber terminal 3 and the outgoing trunk 5. In addition, various services provided by the exchange are simultaneously managed in this connected state.

[Problem that the invention seeks to solve]

The above-mentioned conventional call connection status management system for electronic exchanges centrally manages call connection information, but each time a new connection type is implemented, the number of statuses to be managed increases. Furthermore, if we also consider the covert states of those services, the number of states increases explosively. In such situations, the development of replacement software becomes extremely complex and difficult. ,-! ! Another problem is that it is extremely difficult to add new services or change existing services.

[Means for solving problems]

The call connection status distributed management method for an electronic exchange according to the present invention manages the accommodation location number of the other subscriber or trunk for which a call path is reserved at that time as call information for each subscriber or trunk, and By controlling the call status of the subscriber or trunk on the destination side, the call status of the subscriber or trunk is not influenced by the subscriber or trunk on the other side and is managed independently. It is.

[For production]

This invention simplifies the management of call connection status and allows services provided by an exchange to be localized to a particular subscriber network or trunk.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the call connection state distributed management method of an electronic exchange according to the present invention, and shows a state in which a communication path is set between a subscriber terminal 3 and an outgoing trunk 5 by a network 1. show.

In this case, the connection information between the subscriber terminal 3 and the outgoing trunk 5 is managed independently in each call state.

That is, the subscriber terminal 3 stores the accommodating position number of the outgoing trunk 5, and the outgoing trunk 5 stores the accommodating position number of the subscriber terminal 3. Here, when the subscriber terminal 3 disconnects, it transmits a disconnection 1 signal to the accommodating position number of the outgoing trunk 5, which is managed as call connection information. Then, the outgoing trunk 5 performs a process of disconnecting the outgoing trunk 5 in response to receiving the disconnection signal from the other party. Next, a case will be described with reference to the second base, for example, where a three-party call, step 1), subscriber terminals 3a and 3b, and outgoing trunk 5 are connected in a three-way call via a conference trunk T. . , First, the connection form S'i1 indicates call connection information of the subscriber terminal 3a.
, the connection state 4b indicates the connection information of the call of the subscriber terminal 3b, the connection state -5; and are managed independently. In this case, the three-party call J) information is managed in the call connection state of the conference trunk 7, and is managed at the subscriber terminals 3a and 3b and the outgoing trunk 5 during a normal two-party call and during a call by the same machine.

〔Effect of the invention〕

According to the call connection status distributed management system for electronic exchanges according to the present invention, all services provided by a 1U slave exchange can be localized to a specific subscriber or trunk by distributing call connection information. and the destination subscriber or trunk can receive service independently.

In addition, in the composite state of services, the connection state of each subscriber terminal can be managed independently by the controller.
Complex states of services can also be realized. In addition, it is most effective for electronic exchanges that are required to provide complex services involving γ and machinery. Also,
For already developed exchanges) J7 +, f) Air, the management of call connection status is simple T'A6, and the existing software is not affected by the addition of new services or changes to existing services. There are merits such as the scope of giving becomes smaller and comparison becomes clearer.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the call connection state distributed management method for an electronic exchange according to the present invention, FIG. 2 is a diagram showing a method for managing call connection states in FIG. 1, and FIG. Electronic exchange call connection status management method 2 sets% 1 person number m/network, 2...φ connection status, 3...
・Contesting subscriber terminal, 4...φ・Subscriber status, 5...Outgoing trunk, 6...Trunk down (2λ;. Patent applicant: NEC Law Company Agent: Kazuka Yamakawa (Ri1) or 2 people) 1., 1
] ; f53, 1 Figure 2

Claims (1)

[Claims] In the electronic exchange control method using the storage program method,
A call connection status distributed management system for an electronic exchange characterized in that the call connection status from call origination to termination is managed independently by a subscriber or trunk on the originating side and a subscriber or trunk on the destination side.