JPS5858860B2 - Method for monitoring calls by subscriber to be intervened in operator intervention connection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a system for monitoring calls of an intervened subscriber in an operator intervention connection.

One of the services provided by the exchange is operator intervention service.

This means that when the calling subscriber dials to connect to the called subscriber, it does not connect directly to the called subscriber;
Once connected to an intervener (usually a handler), the intervener calls the called subscriber and asks if it is okay to connect with the calling subscriber, and when permission is obtained from the called subscriber, the intervener calls the subscriber. A connection is established between an originating subscriber and a terminating subscriber by operation.

The intervener plays the role of a secretary, so to speak.

FIG. 1 is a diagram showing the principle of a relay system of a conventionally known operator intervention service.

In Figure 1, when originating subscriber A makes a call to intervened subscriber B, the incoming trunk ICT (or internal trunk
OT), is connected to the intervener P via a link.

Intervenor P makes an inquiry about the source. Next, the contact S in the subscriber circuit is operated by the intervention person P to connect the intervention person P and the intervention target subscriber B, and the intervention person P and the intervention target subscriber B are connected.

The intervener P notifies the subscriber B to be intervened of the caller, and when permission for connection is obtained from the subscriber B to be intervened, performs the connection operation.

As a result, the contact t closes between the originating subscriber A and the intervened subscriber B.
A connection is made between the two.

On the other hand, when connection permission cannot be obtained from the intervened subscriber B,
The intervener P notifies the originating subscriber to that effect.

In the conventional operator intervention service shown in Figure 1, calling subscriber A
While the intervention party P and the intervention subscriber P are connected, it is impossible for the interventionee subscriber B to make a call.

Therefore, even in such a case, in order to enable the interventionee subscriber B to make a call, as shown in Figure 2, the interventionee subscriber B
A method is being considered in which the terminal has a terminal exclusively for transmission.

In FIG. 2, when the originating subscriber A and the intervener P are connected and are not yet connected to the intervened subscriber B, the intervened subscriber B can freely make calls and captures the originating register OR. You can now make dial calls.

At the same time, the call made by the intervened subscriber B is not shown, but
The intervener is notified, and the intervener informs the originating subscriber A of this fact.

According to the system shown in FIG. 2, the link requires two terminals for each subscriber, which reduces the subscriber accommodating efficiency of the link and is not economical.

The present invention solves the above-mentioned drawbacks and economically realizes a system in which even if the originating subscriber and the intervener are busy talking, the intervened subscriber can freely make calls until the intervener calls the intervened subscriber. Therefore, the present invention provides a connection path by a link between the intervener and the intervened subscriber in the operator intervention connection in the operator intervention service of the exchange, and the connection between the intervener and the intervened subscriber. After the route is completed, the intervener monitors the loop of the intervened subscriber's line until it calls the intervened subscriber, and when it detects the calling indication of the intervened subscriber, it releases the already completed connection path. The system is characterized by giving priority to the outgoing connection of the subscriber to be intervened.

A diagram of the principle relay system of the present invention is shown in FIG.

In Fig. 3, the intervened subscriber B has only one terminal on the line link side, and the intervener P has an intervention connection trunk (hereinafter referred to as S).
The SPT has one terminal on the line link side and one terminal on the trunk link side.

The operation of FIG. 3 is as follows. A call from originating subscriber A to intervened subscriber B is once guided to the SPT's line link accommodation terminal via the incoming trunk IC'T (or local trunk 10T), and is then routed to the SPT's h contact and ec contact. and reaches the intervener P.

On the other hand, the connection path between the trunk link accommodation terminal of the SPT and the intervened subscriber B is also closed at the same time.

After inquiring about the source, the intervener P contacts contact h and contact S.
The PK is activated to create a connection path with the intervened subscriber B, and notify the intervened subscriber B of the origin.

When permission for connection is obtained from the intervened subscriber B, the intervener P operates the contact point SPK, restores the contact, and creates a connection path between the originating subscriber A and the intervened subscriber B.

On the other hand, when connection permission cannot be obtained from the intervened subscriber B, the intervener P notifies the originating subscriber A to that effect.

Here, the intervener P and the calling subscriber A are on the phone, and the intervener P
If the intervened subscriber B makes a call before the intervening subscriber B calls the intervened subscriber B, the SPT will
The connection path between the trunk link terminal of T and the line link terminal of subscriber B is opened.

This allows connection between the intervened subscriber B and the originating register OR.

Next, the present invention will be explained in detail based on the principle shown in FIG.

FIG. 4 shows a circuit configuration of a system for monitoring calls by a subscriber to be intervened in an embodiment according to the present invention.

First, when originating subscriber A makes a call to subscribed subscriber B, originating subscriber A is connected to SPT via ICT (or OT) and a link.

At this time, the SPT and the subscriber to be intervened are also connected.

When the SPT is captured, the unillustrated B in the SPT
The IJ relay operates and establishes a communication path between the originating subscriber A and the operator circuit.

Also, the B IJ relay operation sends air to the C line of the link between the SPT and the intervened subscriber B, and the link continues to be maintained.

Intervenor P makes a call with calling subscriber A, and when the call ends, operates a telephone key (not shown).

This causes the SPT E relay to operate, as well as the Hl) relay and SPK relay (not shown) to operate.

The G relay operates due to the E relay operation, and the intervened subscriber B
Sends out ringing.

When the intervened subscriber B responds, the F IJ relay operates and the F
GIJ relay is restored by relay operation, and subscriber B
At the same time, a communication path between the intervened subscriber B and the intervener 2 is established.

At this time, since the HIJ relay (not shown) is operating, the communication path from the originating subscriber A is disconnected.

As a result of the conversation between the intervener P and the intervened subscriber B, if the intervened subscriber B desires to speak with the originating subscriber A, the intervener P operates a telephone key (not shown) to switch to the SPT (not shown). The HIJ relay is restored and the EC relay (not shown) is operated.

A communication path between the originating subscriber A and the intervened subscriber is established through the HIJ ray return 1 stamp, and communication between the two becomes possible.

Furthermore, the intervention person is separated by the EC relay operation.

On the other hand, when the intervened subscriber B does not wish to talk to the originating subscriber A, the intervener P uses a telephone key (not shown) to
Restore the PT SPK relay and H relay.

As a result, a communication path is established between the intervener P and the calling subscriber A, and the intervener informs the calling subscriber A that the call to the intervened subscriber B cannot be received.

Next, when the originating subscriber A and the intervener P are talking and the ringing signal has not yet been sent to the intervened subscriber B, when the intervened subscriber B takes off-hook and makes a call, the SPT D Relay works.

The DAIJ tray is activated by the D IJ tray operation, and the da contact disconnects all communication lines A, B and control line C to the subscriber B to be intervened.

Due to the disconnection of the A and B lines, ringing will not be sent to the intervened subscriber B, and due to the disconnection of the C line, the link holding electromagnet HM will be restored, and the link between the SPT and the intervened subscriber will be severed. .

As a result, the intervened subscriber B becomes in a normal calling state and is connected to the calling register OR, making it possible to send dialed digits.

On the other hand, in SPT, D IJ is
Since the busy tone is sent from the third winding of the tray, the interventionist P
When the 5PKIJ relay (not shown) is activated by the operation, the intervener P receives a busy tone.

As a result, the intervener P restores the HIJ relay (not shown) of the SPT by manipulating a telephone key (not shown) to form a communication path with the calling subscriber A, and the intervened subscriber B makes a call to the calling subscriber A. Notify me that it is inside.

According to the present invention, in the operator intervention connection, it is possible to make a call from the interventionee before the interventionist calls the interventionee using only one connection terminal for the interventionee to the line link, which is not possible compared to the conventional method. It is economical compared to

Note that according to the present invention, the number of SPT accommodation terminals for trunk links and line links is increased in exchange for the decrease in the number of intervention recipient accommodation terminals for line links.
are commonly used, and the number of installed terminals is much smaller than the number of persons undergoing intervention, so the total number of accommodated terminals is smaller in the present invention than in the conventional system.

[Brief explanation of the drawing]

Fig. 1 shows the principle of a relay system of a conventionally known operator intervention service, Fig. 2 shows a relay system when the subscriber to be intervened in the operator intervention service has a terminal exclusively for outgoing calls, and Fig. 3 shows the principle of the present invention. FIG. 4 shows a circuit configuration of a system for monitoring calls by a subscriber to be intervened in an embodiment according to the present invention. In Figure 4, A is the originating subscriber, B is the intervened subscriber, and P
is the intervention person, SPT is the trunk for intervention connection, ICT is the incoming trunk, ■OT is the trunk within the own office, and Link is the link.

Claims (1)

[Claims] 1. In the operator intervention connection in the operator intervention service of an exchange, a connection path by link is provided between the intervener and the intervened subscriber, and after the connection path between the intervener and the intervened subscriber is completed, the intervener Until the intervened subscriber is called, the loop of the intervened subscriber's line is monitored. When the interrupted subscriber's calling display is detected, the already completed connection path is opened and the interrupted subscriber's outgoing connection is called. A calling monitoring method of a subscriber to be intervened in a connection with operator intervention, characterized by giving priority to.