JPS6220495A - Switching system for connection path - Google Patents

Abstract

PURPOSE:To prevent a call from becoming ineffective owing to the queue of another incoming trunk from the in-use state of an outgoing trunk by providing a time limit to the time of use connection from an incoming trunk to the outgoing trunk. CONSTITUTION:When the incoming trunk 1 and outgoing trunk 3 are connected mutually through a network 13, a call from an incoming trunk 2 can not be connected. For the purpose, it is connected to a talkie trunk 7 temporarily and an announcement in a queue is sent to the origination side. A switching controller 12 receives and stores pieces of channel connection information from a connecting device 14 previously and transfers those pieces of information to a connecting device 14 to switch trains. Then, the connection path of incoming trunk 1 (A) route outgoing trunk 3 is switched to the connection path of incoming trunk 1 (D) route talkie trunk 8, and the connection path of incoming trunk (C) route talkie trunk 7 is switched to the connection 2 path of input trunk 2 (B) route outgoing trunk 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a communication path connection method, more specifically, a communication path connection method ( BACKGROUND ART Conventionally, once a communication path connection is established between an incoming trunk and an outgoing trunk, the communication path is continued unless one of them is restored.

In general, outgoing trunks have a variety of outgoing trains compared to incoming trunks, so each outgoing trunk has limited equipment for the same train, and incoming trunks can capture these outgoing trunks.・In order to connect, connection cannot be established until the outgoing trunk is in the stuck state, and generally B
The caller is notified by the T sound.

FIG. 2 is a diagram of a conventional general relay system.

1 and 2 are incoming trunks, and 3.4 is outgoing trunk.

After the incoming trunk is activated and captured by the preceding line, it receives a selection signal, and the outgoing trunk (in this case, the outgoing trunk 3) is captured in response to the selection signal under the control of a well-known connection device (not shown), and the incoming trunk 1 and the outgoing trunk are Connection with trunk 3 is made.

On the other hand, the incoming trunk 2 is also connected to the outgoing trunk 4 in a similar manner.

Therefore, the connection between incoming trunk 1 and outgoing trunk 3 and the connection between incoming trunk 2 and outgoing trunk 4 will be established unless either trunk (incoming trunk or outgoing trunk) is restored.
The connection path will continue. Here, enter trunk 5
is activated and captured, and when connecting with outgoing trunk 3 or 4, since outgoing trunk 3t or 4 is already in use, incoming trunk 5 is in a waiting state and connection of O route and O route cannot be made. Therefore, outgoing trunk connections are not possible. Generally, the visit tone trunk 6 is captured, and ■
The connection operation is completed by connecting via the route and notifying the caller of the BT tone.

(Problem to be solved by the invention) In this way, when a particular outgoing trunk (or train) is limited in terms of equipment, the original connection is not satisfied for the caller, resulting in a decline in service and It is clear that this will result in invalid operation of the trunk and the connected device.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connection switching system that can overcome the above-mentioned drawbacks.

(Means for Solving the Problems) In order to achieve all of the above objects, the connection path switching system according to the present invention provides switching between an incoming trunk, an outgoing trunk, a special trunk, and between the incoming trunk and the outgoing trunk or special trunk. a scanning device that monitors the status of the incoming trunk, outgoing trunk, and special trunk; a driving device that sets the train opening for the incoming trunk; and a connecting device that connects and controls the network;
a switching control device that stores storage position information and predetermined time information of the incoming trunk, outgoing trunk, and special trunk on the network, and the switching control device fully operates the scanning device to obtain monitoring information; Based on this, the accommodation position information and time information are used to set all valves of the drive device to open the incoming trunk, and to change the network connection via the connection device so that the drive device can be used even after the predetermined time has elapsed. The incoming trunk is connected to a special trunk, and the corresponding outgoing trunk is connected to another incoming trunk.

(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of the connection path switching system according to the present invention.

Now, assume that the incoming trunk 1 and the outgoing trunk 3 are connected throughout the network 13.

A call originating from the incoming trunk 2 cannot be connected because the outgoing trunk 3 is already being used by the ■ train. Therefore, the five-person trunk 2 is connected to the talkie trunk 7 and an "announcement" is sent to all callers who are waiting.

The switching control device 12 receives in advance the communication path connection information necessary for connecting the communication paths from the connection device 14, and in other words, the accommodation position information of the network 13 in which the trunks 1 to 3 and 6 to 8 are accommodated. By storing the information in memory and managing the time information, train connections can be easily changed by transferring this information to the connection device 14 using conventional technology.

Currently, if the connection route of incoming trunk 1 ← → outgoing trunk 3 has passed the preset time, the connection route will be switched.The control device] 2 sets the train opening instruction for the incoming trunk 1, and then At the same time as opening, the 0 route is passed through the talki trunk 8 and the connection is changed. Thereafter, the incoming trunk 2 which was connected to the talki trunk 7. By setting all the instructions for opening the train in the same manner as described above, the train is once opened, and the switching control device 12 determines the outgoing trunk 3 that has become stuck, and tells the connection device 14 to set the respective storage position. By transferring information and reconnecting, it becomes possible to use the original connection route ■route for incoming trunk 2. Therefore, the connection route for incoming trunk 1-Q route ← outgoing trunk 3 is incoming trunk 1 → ◎ Root → Talk Trunk 8
Heto, entering trunk 2-4-o route → talki trunk 7
The connection path can be changed from the incoming trunk 2-0 route to the outgoing trunk 3.

From the above, by setting the necessary switching time in advance, the above-mentioned connection path will be changed periodically.

In this embodiment, a case has been described in which there are two incoming trunks and one outgoing trunk, but a similar configuration can be made in the case of a plurality of trunks.

(Effects of the Invention) As described above in detail, according to the present invention, in the conventional connection path between an incoming trunk and an outgoing trunk, when an outgoing trunk is in use, another incoming trunk is waiting and becomes invalid. On the other hand, such invalid calls can be easily rescued, there is no need to install redundant outgoing trunk equipment, and furthermore, it is possible to provide all services to the calling side.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the connection path switching system according to the present invention.
4...Connection device

Claims (1)

[Claims] an incoming trunk, an outgoing trunk, a special trunk, a network that switches and connects the incoming trunk and the outgoing trunk or the special trunk, and a scanning device that monitors the status of the incoming trunk, the outgoing trunk, and the special trunk;
It stores a driving device that sets a train open for the incoming trunk, a connecting device that connects and controls the network, information on the accommodation positions of the incoming trunk, outgoing trunk, and special trunk on the network, and predetermined time information. a switching control device, the switching control device obtains monitoring information via the scanning device, and based on the monitoring information, uses the accommodation position information and time information to set the opening of the incoming trunk via the drive device; changing the network connection via the connection device and connecting the incoming trunk that is still in use after the predetermined time has elapsed to a special trunk;
A connection switching method characterized in that a corresponding outgoing trunk is connected to another incoming trunk.