JPS60224362A - Switching controller of automatic exchange - Google Patents

Abstract

PURPOSE:To set one telephone set to the use mode only for direct service and the use mode for dialing by providing a means, which monitors the time when the first dial signal comes, to discriminate presence or absence of the signal. CONSTITUTION:When a calling subscriber SUB-A is connected to a register trunk ORT after hooking off a receiver, detection of the first dial signal is started. At this time, the time when transmission of the dial signal from the calling subscriber SUB-A is started is monitored on a basis of a timer in a storage device MU. Meanwhile, if the dial signal is not transmitted after the receiver is hooked off, the monitor timer in the storage device MU monitors the time when transmission of the dial signal is started, and expiration of the timer is detected. Information of called subscribers SUB corresponding to the calling subscriber SUB-A are read out from the storage device MU, and the calling subscriber SUB-A is connected to a determined called subscriber SUB-B by a processing 500.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to a switch control device in an automatic switchboard.

[Prior art]

Among the switching control devices of conventional automatic switchboards, there is a direct dial telephone that allows an operator to connect to a specific party by simply lifting the handset of the telephone. However, this type of device has the following drawbacks from the point of view of actual handling.

(1) It is necessary to separately install a telephone set exclusively for direct dialing and a telephone set exclusively for calling by dialing signals.

(2) It is necessary to use different telephones for direct dialing and dialing depending on the person the operator wants to call.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a switching control device for an automatic exchange that eliminates the above-mentioned drawbacks and allows a single telephone to be used both as a telephone exclusively for direct dialing and as a telephone connected by dialing signals. It is in.

[Structure of the invention]

In order to achieve the above object, the present invention provides a switching control device for an automatic exchange, which includes means for monitoring the time from when an operator picks up the handset of a telephone until the first dialing signal begins to be sent. , means for connecting to a predetermined connection partner when the first dial signal is not sent within a predetermined time due to the operation of the monitoring means, and a first dial signal determined by the operation of the monitoring means. and a means for connecting according to the dial signal when it is sent within the specified time.

〔Example〕

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

FIG. 1 shows a relay system diagram in one embodiment of the present invention.

Here, 5UB-A is the subscriber, SW is the switchnet,
ORT is a register trunk, TKO is a trunk control device that monitors and controls the register trunk ORT, and CC is a central processing unit that operates under program control. The MU is a storage device, and after the subscriber 5UB-A is connected to the register trunk ORT via the switch 8W, the subscriber S
A timer memory that monitors the time until UB-A starts sending the first dial signal, and stores information on the connection partner corresponding to subscriber 8UB-A if the first dial signal does not arrive after a certain period of time. A control memory is provided.

In the exchange processing operation, after the subscriber 5UB-A picks up the handset, the subscriber 5UB-A, switch 8W, register trunk ORT, A receiving circuit for dialing signals from 5UB-A is prepared. Storage device MU
A monitoring timer is set for monitoring the transmission of the first dial signal from subscriber 5UB-A. Furthermore, if the subscriber 8UB-A does not send a dial signal, information on the connection partner to be connected is stored for each subscriber.

The above embodiment will be explained in more detail below with reference to FIG. FIG. 2 is a state transition diagram in the above embodiment. 1
00 indicates a state in which the subscriber 5UB-A is connected to the register trunk ORT after picking up the handset and is listening to the dial tone, and the dial tone is being sent. After receiving the first dialing signal from subscriber 5UB-A, 200
Furthermore, a state in which a dial signal is being received is shown, in which a dial signal is being received. At this time, transmission of the dial tone has stopped. 300 is subscriber (calling party) SUB-A
This shows a state in which a predetermined subscriber (called party) SUB-B is called when no dial signal is received from the extension. In the extension calling state 600, IOT is a trunk within the own office, and RGT is a ringing signal trunk for calling the called extension. Subscriber 5UB-
B is a subscriber (called party) that subscriber (calling party) SUB-A calls without sending a dial signal after picking up the handset.

Reference numeral 400 indicates a process of transitioning from the dial tone sending state 100 to the dial receiving state 200 when the first dial signal is received from the subscriber (calling party) SUB-A. 500 is information stored in the storage device MU from the state 100 in which a dial tone is being sent when the first dial signal from the subscriber (calling party) SUB-A is not sent within a specified time. State 6 of extension calling calling subscriber (called party) SUB-B read by
00 is shown.

The exchange processing operation of the above embodiment is as follows.

First, when the subscriber (calling party) SUB-A picks up the handset and is connected to the register trunk ORT, detection of the first dial signal begins. At this time, subscriber (caller) S
The time until the dial signal starts to be sent from UB-A is monitored based on the timer in the storage device MU. These operations are well known and will be omitted. On the other hand, when the subscriber (calling party) SUB-A does not send out a dial signal after picking up the handset in order to call the subscriber (-called party) 8UB-B, the monitor in the storage device MU A timer monitors the time until the dial signal starts to be sent as the above-mentioned exchange processing operation, and detects a time-out. The information stored in the storage device MU allows the subscriber (calling party)
The information of the subscriber (called party) 5UB-B corresponding to SUB-A is read out, and a connection is made to the subscriber (called party) SUB-B determined by the process 500 described above.

〔Effect of the invention〕

As explained above, the present invention includes a means for monitoring the arrival time of the first dial signal and makes it possible to distinguish between the presence or absence of a dial signal, so that one telephone can
It is practical, operational, and economical because it can function as both a direct-dialing telephone and a telephone that connects according to dialing signals, thereby reducing the number of telephones required to be installed. Even when viewed from the surface, it has very good effects.

[Brief explanation of the drawing]

FIG. 1 is a relay system diagram showing one embodiment of the present invention, and FIG. 2 is a state transition diagram of the embodiment shown in FIG. 8UB-A...Subscriber (calling party) SUB-B...Subscriber (called party) SW...Switchnet ORT...Register trunk TKO...Trunk control device CC. ...Central processing unit MU ...Storage device IOT ...Internal trunk RGT ...Call signal trunk SW Figure 1

Claims (1)

[Claims] In the switching control system of an automatic exchange, there is provided a monitoring means for monitoring the time from when the operator picks up the handset of the telephone until the first dialing signal begins to be sent, and within a predetermined time set by the monitoring means. means for connecting to a predetermined party when the first dial signal is not sent; and means for connecting according to the dial signal when the first dial signal is sent within the predetermined time. A switching control device for an automatic switching machine, characterized by comprising: