JPS62292051A - Camp-on system - Google Patents

Abstract

PURPOSE:To offer more appropriate service to the subscriber of an automatic exchange, by informing the vacancy of a subscriber to be set, or a trunk, to a camp-on set subscriber in busy. CONSTITUTION:Assuming that a trunk line incoming call arrives at a camp-on set subscriber 2, the trunk line is connected to the subscriber 2 through a trunk TRK5, resulting a busy state. In such state, by completing a call between a camp-on subscriber 3 to be set, and a call opposite 4, and releasing a link 8, a central control unit CC7 detects the vacancy of the subscriber 3 to be set, and also, recognizes that the set subscriber 2 is in busy, and makes a channel network NW1 close a link between the set subscriber 2, and an alarm tone trunk TNT6, by issuing an instruction to the NW1. By such reason, the set subscriber 2 can recognize the vacancy of the subscriber 3 to be set by listening alarm tone from the TNT6 through the NW1. The set subscriber 2 can select either the continuance of the call with the trunk line, or, connection to the subscriber 3 to be set, while holding the call with the trunk temporarily, by the above alarm.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camp-on system in an automatic exchange having a camp-on function.

[Conventional technology]

In the conventional camp-on method, only when both the camp-on set subscriber or trunk and the camp-on set subscriber become vacant, the camp-on set subscriber is notified that the camp on set subscriber or the trunk becomes vacant. I was notified of this.

For example, when a camp-on subscriber dials the phone number of a camp-on subscriber, if the camp-on subscriber is on the phone with a subscriber at the center, the camp-on subscriber will hear the busy tone. After that, set up camp and go on hook.

When the camp-on set subscriber ends the call and goes on-hook, the central controller detects this and confirms that the camp-on set subscriber is on-hook (that is, free), and then selects the camp-on set subscriber. By making a call, the camp-on subscriber was notified that the camp-on set subscriber or the trunk became vacant.

[Problem that the invention seeks to solve]

In the conventional camp-on method described above, a notification is sent only when both the camp-on setting and the subscriber to be set are free, so the camp-on setting subscriber cannot answer other incoming calls after setting camp-on. If you go off-hook and become busy, there will be no notification even if the camp-on set subscriber or trunk becomes free, and the camp-on will be turned on again when the camp-on set subscriber becomes free. The disadvantage is that there is no notification even when a subscriber or trunk is busy, and the subscriber configured with CampOn may not be given a proper opportunity to connect with the subscriber or trunk configured with CampOn. there were.

[Means for solving problems]

The camp-on system of the present invention is provided with means for notifying a camp-on set subscriber who is currently talking that either the camp-on set subscriber or the trunk becomes vacant in an automatic exchange having a camp-on function. There is.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the camp-on system of the present invention.

In the figure, the automatic switchboard is connected to the camp-on set subscriber (
Hereinafter simply setter)2. A communication channel network (hereinafter referred to as NW) 1 accommodating a camp-on set subscriber (hereinafter simply referred to as a set-up party) 31 and a called party subscriber (hereinafter referred to as called party) 4, and a central office line trunk (hereinafter referred to as TRK) 5 connected to the NWI. and a warning tone trunk (hereinafter referred to as TNT) 6, and a central control unit (hereinafter referred to as CC) 7 that controls sequence control within the automatic exchange, and the setee 3 is connected to the other party 4 via the link 8 of the NWI. It is assumed that there is

Next, the operation of this embodiment will be explained.

When configurator 2 dials the phone number of configurator 3,
Since the setee 3 is currently talking with the other party 4, the setter 2
hears a busy tone. Here, the setter 2 sets camp-on using the best known method and then goes on-hook. Next, if setter 2 receives an incoming call from the central office line, the central office line is set to TRK5. by a generally known method. It is connected to the configurator 2 via the NWI, and the configurator 2 is in a busy state. In this state, when the call between the setee 3 and the other party 4 ends and the link 8 is released, the CC 7 detects that the setter 3 is free and also indicates that the setter 2 is busy. The configurator 2 recognizes this and instructs the NWI to close the link between the configurator 2 and the TNT 6, so the configurator 2 hears the warning sound from the TNT 6 via the NWI and is informed that the configurator 3 is free. know. Based on this warning sound, the setter 2 can select whether to continue the call to the central office line or to temporarily hold or end the call to the central office line and connect to the setter 3.

〔Effect of the invention〕

As explained above, the present invention notifies a busy camp-on subscriber that a camp-on subscriber or trunk has become vacant, so that the camp-on subscriber can be connected to the camp-on subscriber at that time. Automatic switchboard subscribers can continue talking with the other party, but can be given the option to temporarily hold or end the call and connect to the camp-on subscriber or trunk. This has the effect of providing more appropriate services to customers.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the camp-on system of the present invention. 1... Call path network (NW), 2... Camp-on setting subscriber, 3... Camp-on setting subscriber, 4... Call destination subscriber, 5... Office line trunk (TR
K), 6... Warning tone trunk (TNT), 7...
Central control unit (CC), 8...link.

Claims (1)

[Claims] A camp-on system characterized in that an automatic switchboard having a camp-on function is provided with means for notifying a camp-on subscriber who is currently talking that either a camp-on subscriber or a trunk has become vacant.