JPS6086957A - Circuit sharing system - Google Patents

Abstract

PURPOSE:To assure the communication for a fixed period of time for an instantaneous call which shares a circuit with a reserved call, by having the same reserving process as the reserved call even for the instantaneous call. CONSTITUTION:An exchange 2 accepts an instantaneous call request from a terminal 15 and informs it to a reservation center 1. A reservation controller 5 reserves a circuit through a circuit reservation state file 6 after confirming the idle state of the circuit between terminals 15 and 16 for a fixed period of time from the present time point. Then the controller 5 informs a connection route through which the reservation is carried out to the exchange 2 via a signal device 7 and a communication circuit 14. A controller 9 receives the information and controls a channel device 8 according to the connection route. Then the controller 9 connects a circuit 17 and sends an instantaneous call request including the connection route to an exchange 3. Then exchanges 3 and 4 connect successively circuits according to the informed connection route, then connect terminals 15 and 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a line sharing system for sharing lines between an E1 call and a reserved call in a switched network.

If you use a connection line on a switched network for forced calls such as video calls, even if you try to connect the line immediately at the time of the meeting, the line may be blocked and the meeting may not be able to be held. If you want to be sure, it is best to reserve the line in advance. Reserving a line is effective not only for conference calls but also for ensuring that calls can be made at the scheduled time.

Under these circumstances, the switching network has line equipment that can be used for immediate connection and line equipment that can be used for reserved connection, but the present invention shares these and provides both line equipment that can be used for immediate connection or reserved connection. This relates to a line sharing system that allows for flexibility between facilities at any time.

[Prior art and its problems]

Conventional line sharing system (for example, Japanese Patent Application No. 117100/1983)
No. 1), when connecting an immediate connection call, the connection is made only by checking that the line is currently empty, and if the number of reserved connection calls increases after that, it is not possible to process the reserved connection calls as call losses. It was necessary to disconnect the immediate call and switch to a reserved connection call.

Therefore, there is a possibility that the immediate connection call is disconnected by the always reserved connection call, and there is a drawback that the communication time of the immediate connection call cannot be guaranteed.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and therefore, an object of the present invention is to provide a line sharing system that can guarantee communication time for an instant connection call for a certain period of time. be.

[Key points of the invention]

The gist of the present invention is that the connection of the immediate call is made after the communication time is guaranteed for a certain period of time by performing a reservation registration process in the line reservation status file for the immediate call in the same manner as for the reserved call.

[Embodiments of the invention]

Next, an embodiment of the present invention will be described with reference to the drawings.

The figure is a block diagram showing one embodiment of the present invention.

In the figure, 1 is a reservation center, 2, 3, and 4 are exchanges, 5 is a reservation control device, 6 is a line reservation status file, 7 is a signaling device, 8, 10.12 are communication path devices, and 9, 11 are respectively .13 is a control device, 14 is a switch,
Communication lines between the reservation centers, 15 and 16 are terminals, respectively.
17 and 18 are line groups between each exchange.

When the exchange ia2 receives the immediate call request from the terminal 15, it notifies the reservation center 1 that there is an immediate call. The reservation control device 5 confirms from the line reservation status file 6 that the line connecting the terminals 15 to 16 is free for a certain period of time (1) from the current time, and if it is free, the line reservation status file 6 is updated from the current time. You can reserve your line up to one hour later. After that, the reservation control device 5 connects the signaling device 7 and the communication line 1.
4, notifies the exchange 2 of the reserved connection route. When the control device 9 receives the notification, it controls the call crossing R8 according to the notified connection route, connects the line 17, and sends an immediate connection request including the connection route to the exchange 3. The exchanges 3 and 4 connect the terminals 15 and 16 by sequentially connecting the next line according to the notified connection route.

These processes can be the same as the process for reservation registration of a reserved connection call and the connection process performed based on the reservation at the communication start time 115, except that the reservation is made from the present moment and the connection operation is immediately started.

〔Effect of the invention〕

As explained above, according to the present invention, by performing the same reservation process for immediate calls as for reserved calls, there is an advantage that the communication time of the immediate calls that share the line with the reserved calls can be guaranteed for a certain period of time.

In addition, since the connection processing for reserved calls can be shared as the processing for connecting immediate calls, it is possible to use idle lines for immediate calls with minimal addition of functionality in switched networks that mainly rely on reserved calls. As a result, line usage efficiency can be increased.

[Brief explanation of drawings]

The figure is a block diagram showing one embodiment of the present invention. Code explanation

Claims (1)

[Claims] 1) In a switching network that has a line shared for immediate connection and reserved connection, a reservation center for line reservation, and an exchange for line connection, the number of lines reserved at each time is recorded and the number of lines can be searched. The center has a line reservation status file that is available, and when an immediate connection is requested, it searches the line reservation status file, confirms that there are free lines for a certain period of time from the current time, and if there are free lines, makes a line reservation. Pre-register the immediate call in the status file for a certain period of time,
A line sharing method characterized by immediate call connection for the hindlimb.