JPS5916460B2 - Inter-machine transfer method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention generally relates to an inter-switch transfer system in a telephone or telegraph switching system, and more particularly to a manual or semi-automatic method for connecting calls with the intervention of a switching operator (hereinafter referred to as an operator). The present invention relates to a method of transferring a call accepted by a first operator to a second operator in an operational switching system.

In terms of the operation of the switching system, such transfer of calls between handlers means that when a general handler accepts a special call that can only be handled by a specific handler, the call is entrusted to the above-mentioned specific handler. It is necessary for In so-called inter-machine transfer, which transfers calls between operators, the call path connecting the subscriber applying for a call and the switch where the first operator is seated is separated, and the above-mentioned In addition to the need to reconnect the communication path between the subscriber and the switchboard where the second handler is located, the information that the subscriber has already declared to the first handler must be transferred to the second handler. It is necessary to provide a function that can be used to communicate information to other people.

Conventional technology of this kind includes transfer with a meeting, in which the first operator calls the second operator in advance, verbally conveys the information already reported by the subscriber, and then changes the connection of the call path. A non-discussion transfer method is known in which only the connection of the communication path is changed without transmitting information from the first operator to the second operator.

However, in the former method of transfer with discussion, it is necessary to set up a communication path for verbal communication between the handlers, which results in complicated control of the exchange system and the need for verbal discussion in connection with the transfer. Disadvantages include that the operator's operating procedures become complicated, and that the service quality is unfavorable as subscribers are forced to wait while the operators discuss each other. In addition, in the latter transfer method without a meeting, the connection of the call path from the first operator to the second operator can be easily and quickly changed.
This method has the disadvantage that the subscriber must report the information already submitted to the first operator to the second operator, which is also undesirable in terms of service to the subscriber.
Furthermore, from the viewpoint of switching equipment control for switching connection relationships of communication paths, in conventional exchanges, communication lines and exchange boards are usually accommodated directly in the same communication path switch network, and transfers between the communication lines and switches are performed. In order to do this, it is necessary to control the communication path switch network itself and change the connection of the communication paths.

Therefore, large-scale exchanges having large-scale communication path switch networks have the disadvantage that the control required for switching communication paths becomes complicated. SUMMARY OF THE INVENTION Accordingly, the present invention aims to improve the above-mentioned drawbacks of the prior art, and its object is to provide a call path switch network that facilitates inter-machine transfer.

A feature of the present invention for achieving this object is that the channel switch network is composed of a main channel switch network and a sub channel switch network, and inter-board transfer between switchboards is performed by switching only the sub channel switch network. It's about what we do. Examples will be described below with reference to the drawings. FIG. 1 shows an example of the configuration of an exchange according to the present invention.

In the figure, 1M is a main channel switch network, 1P is a sub channel switch network, 2 is a control device, 3 is a switchboard, 4 is a handset installed in the switchboard, 5 is a display device with a keyboard, and 6 is a switchboard. 7 and 8 represent communication lines. Although a large number of switchboards 3, switchboard trunk devices 6, and communication circuits 7 and 8 having the same configuration can be produced, only one or two representative ones are shown for simplicity of illustration.
The feature of this two-way exchange is that the switchboard is equipped with a display device 5 with a keyboard, and the operator receives information verbally declared by the subscriber through the handset 4, and records the information on the display device 5 using the keyboard. At the same time, the information is input to the control device 2 so that necessary exchange control can be performed. Furthermore, the feature of this switch is that the channel switch network is divided into the main channel switch network 1M and the sub channel switch network 1P, and the connection between communication lines and the connection between the communication lines and the switchboard can be carried out independently. It is at the point 5 like this. Since the subchannel switch network 1P is relatively small-scale, connections between switchboards can be easily established. The basic operation of this exchange is that the communication line 7
In response to an incoming call from the main channel switch network 1M,
A connecting path 9 is configured to connect the communication circuit 7 and the switchboard trunk 6, and a connecting path 1 is configured in the subchannel switch network 1P.
1 to connect the switching board trunk 6 and the switching board 3.

This connects the communication path between the incoming call line 7 and the switchboard 3, so the operator 4 listens to the subscriber's oral declaration and transmits the obtained information to the control device via the keyboard and display device 5. Enter 2. In accordance with this information, the control device 2 configures a connection path 10 in the main channel switch network 1M, and connects the outgoing line 8 and the switchboard trunk device 6. By the above operation, the lines 7 and 8 are interconnected via the switchboard trunk device 6, and communication between the subscriber and the operator becomes possible. After communication starts, if the connection path 11 in the sub-channel switch network 1P is released, the switchboard 3 is released and can be used to connect a new call. In addition, in the operation described above, the switchboard trunk device 6 connects the communication path of the switchboard 3 and the line 7.
Alternatively, selective connection with lines 7 and 8 or mutual connection between lines 7 and 8 is performed. FIGS. 2A and 2B show the operation of the inter-machine transfer system according to the present invention.

In the figure, 3-1 shows the first switchboard that initially accepted the call from the subscriber, and 3-2 shows the second switchboard to which the call is transferred. FIG. 2A shows the connection state from when the first switching board 3-1 accepts a call from a subscriber until just before transferring the call. In this state, the incoming call line 7 and the switchboard 3 are connected through the connection path 11-1 etc. provided in the subchannel switch network 1P, and the notification from the subscriber is sent to the switchboard 3-1.
The information is entered and displayed on a display device installed inside the machine.
Now, when a call transfer request is issued from the first switchboard 3-1,
The information written on the display device of the switchboard is read into the memory 13 provided in the control device 2 via the control information input line 12-1. The control device selects the second switchboard 3-2 to which the call should be transferred, leaves the connection path in the large-scale main channel switch network 1M as is, and transfers the call to a relatively small-scale sub-channel switch network 1M. Only the network 1P is controlled, the connection path 11-1 is released, a new connection path 11-2 is configured as shown in FIG. 2B, and the second switchboard 3-2 is connected.
At the same time, the control device 2 outputs the information stored in the memory 13 after reading it from the first switchboard 3-1 to the display device of the second switchboard 3-2 via the control information output line 12-2. Transfer it to and display it. This allows the operator of the first switchboard 3-1 to transmit information obtained from the subscriber to the operator of the second switchboard 3-2. Through the above operations, the second exchange table takes over the work of the first exchange table, and the first exchange table is released. As is clear from the above-mentioned operation, in the present invention, a relatively small-scale sub-channel switch network 1P is provided separately from the large-scale main channel switch network 1M, and connection switching of call channels for inter-machine transfer is performed. This can be done by controlling only the subchannel switch network 1P, which simplifies the control of the exchange.

In the above explanation of the operation, for the sake of simplicity, we took as an example inter-board transfer when only one incoming line is connected to the switchboard, but in reality, the outgoing line is also connected to the switchboard. There are also inter-machine transfers when two or more lines are connected to a switchboard, such as when connecting a conference call, and changing the connection of call paths is generally more complicated. be.
However, according to the method of the present invention, most of the various connection relationships between lines and switchboards are left in the main channel switch network 1M, and can be simply changed in the subchannel switch network 1P. Therefore, inter-machine transfer can be realized. Furthermore, since the information received at the first switchboard is automatically transmitted in recorded form to the second switchboard, handling procedures for operators are simplified, and at the same time, faster transfer speeds up the transmission of information to subscribers. This has the effect that the waiting time for each is extremely shortened. If, for example, a storage program type device is used as the control system for the above-mentioned exchange, information transfer between the display device and the control device can be easily realized using known technology used in electronic computers with display terminal devices. can. Further, the main channel switch network and the sub channel switch network can be constructed using a known technique such as a crossbar switch or a reed switch.

[Brief explanation of the drawing]

Fig. 1 shows an example of the configuration of a switch according to the present invention, Fig. 2 A and B
2 is an explanatory diagram of the operation of the exchange shown in FIG. 1. FIG. 1M: Main channel switch network, 1P: Sub-channel switch network, 2; Fbl leg device, 3, 3-1, 3-2; Switchboard, 4
: Handset, 5; Display device, 6; Switchboard trunk device, 7, 8; Communication line, 9, 10, 11, 11-1
, 11-2, connection path, 121, 12-2; control information input/output line, 13; memory.

Claims (1)

[Claims] 1. A communication path switch network connected to a communication line and a switchboard has a main communication path switch network in which the communication line is accommodated, and a sub-communication path switch network cascade-connected to the main communication path switch network in which the switchboard is accommodated. , the connection between the communication line and the switchboard is made through the main and sub-channel switch networks, and the connection of the communication line connected to the first switchboard to the second switchboard is through the connection of the main channel switch network. This inter-machine transfer method is characterized in that it is carried out by switching the sub-channel switch network while maintaining the communication channel.