JPS59154868A - Repetitive calling system of automatic exchange - Google Patents

Abstract

PURPOSE:To inform contents of recording to a called party by recording a message of a caller when the called party is busy or does not respond and attaining automatically repeating calling until the called party is idle or responds to the call. CONSTITUTION:When a caller STA-A calls a subscriber STA-B and the called party is busy or does not respond to the call, a central controller CC connects the caller STA-A and a recorder REC via a channel by the caller STA-A dialing a recorder start number, and contents of message of the caller STA-A are recorded. The central controller CC detects the idle called party STA-B by scanning via a line controller LCNT at each prescribed time for the called party STA-B, a trunk controller TCNT and a call signal trunk RGT call the called party STA-B, the response of the called party STA-B connects the called party STA-B and the device REC, and contents of message of the caller STA-A are transmitted to the called party STA-B. The calling of the called party STA-B is repeated until the called party STA-B responds to the call.

Description

[Detailed description of the invention] The present invention relates to a repeat calling system for an automatic switchboard.

Conventionally, when a calling subscriber dials a called subscriber or an attendant, and the called subscriber or attendant is busy or does not respond, the calling subscriber receives a busy tone. I had to keep listening to the ringtone.

Therefore, if the calling subscriber really wants to relay a message for an important matter, he or she must try and repeat the call several times each time until the called subscriber or attendant is free or answers after a certain period of time. , which has the disadvantage of wasting time and causing inconvenience.

The purpose of the present invention is to eliminate the above-mentioned disadvantages, and to enable a calling subscriber to send a message to the other party by dialing - times without having to make repeated calls, thereby wasting one hour without feeling bothersome. The purpose is to provide a repeated calling method that avoids this.

According to the present invention, in an automatic switchboard, when the attendant or the called subscriber is busy or does not respond after a certain period of time, the calling subscriber is dialed by dialing the recording device activation number of the calling subscriber. Connects to a recording device, records the message content of one calling subscriber, and then automatically repeatedly calls the called subscriber or attendant until the called subscriber or attendant responds or becomes free. A repeated calling system is obtained which is characterized in that the message content is transmitted from the recording device at the time of response.

Subscriber, SW is switch link, CC is central control unit,
M is storage device, ORT is outgoing register trunk, LCN
T is a line control device, TCN'l' is a trunk control device, BTT is a busy tone transmission trunk, IOT is an in-office trunk, RBT is a ringing tone trunk, and REC is a recording device.

In Figure 1, when the calling subscriber 8TA-A goes on-hook and hears a dial tone, he dials the called subscriber's number, and the called subscriber's number is received and stored in the calling register trunk 0T, and the central control It is transferred to device CC and stored in storage device M.

The central controller CC translates the information necessary for connection and tries to proceed with the connection with the called subscriber 8TA-B, but when the line controller LCNT determines that the called subscriber 8TA-B is busy. , the central controller CC is the trunk controller TC
The calling subscriber 5TA-A is connected to the busy tone transmission trunk BTT via the NT as shown in FIG.
Sends a busy tone to.

Also, if the called subscriber 5TA-B is idle and does not respond,
In the same manner as described above, the ringing tone is sent from the ringing tone trunk RBT to the calling subscriber 5TA-A through the route shown in FIG.

Is the called party 8TA-B busy for a long time?
Or, if there is no response after a certain period of time during the call, when the calling subscriber 8TA-A most desires to receive a message of important matter, the caller dials the recording device activation number.
As shown in the figure, after being connected to the outgoing register trunk ORT, it is transferred to the central control unit CC, and the central control unit CC
reserves a connection with the recording device REC via the trunk controller TCNT, and then connects the central controller CC as shown in Figure 5.
connects the recording device REC and the calling subscriber 8TA-A.

When the calling subscriber 5TA-A finishes recording the message content, the software program timer counts the time from that point on.
After a certain period of time set in the software program, the line controller LCNT is connected as shown in Figure 6.
The called subscriber 8TA-B is constantly scanned, and as soon as the called subscriber 8TA-B becomes free, the central controller CC determines this and connects the ringing trunk RGT to the called subscriber via the trunk controller TCNT. A link with subscriber 8TA-B is established and a ringing tone is sent out. This connection process is automatically repeated many times until the called subscriber 5TA-B responds.

When the called subscriber 8TA-B answers this automatic call,
As shown in Fig. 7, the link is closed and the recording device REC starts to operate, and the contents of the message recorded by the calling subscriber 8TA-A are automatically notified to the called subscriber 8 TA-B. STA-B can listen to this content. After listening to the contents of the message, when the called subscriber 5TA-B hangs up the handset, the called party automatic repeat paging and connection processing information and message contents are automatically deleted by the central controller CC.

In the case of a relay stand operator, the above-mentioned called subscriber 8TA-B is simply changed to this, and the series of connection processing is the same as described above, so explanations and state transition diagrams will be omitted.

As explained above, when the called party is busy or does not answer, the message content is recorded by a series of dial operations according to the caller's will, and the call is automatically continued until the called party answers. This has the effect that the caller can move on to other activities without having to go through the hassle of waiting for a connection and without having to bear the burden of wasting time.

[Brief explanation of drawings]

1 to 7 show connection state transition diagrams of a relay system according to an embodiment of the present invention. 5TA-A, B, C...Extension subscriber, SW...
... Switch link, CC ... Central control unit 1M ... Storage device LORT ... Outgoing register trunk, LCNT ... Line control device, TCNT ... Trunk control device 6- equipment, BTT ... Busy tone transmission trunk, IOT
Song/own station trunk, RBT...tone trunk while calling song,
RBC...Song recording device. 7- Fu1 times v-z times 3 fields! Figure 4 1st Kaya 1'7 Half 7"riJ

Claims (1)

[Claims] At an automatic switchboard, when the attendant or the called subscriber is busy or does not respond after a certain period of time, the calling subscriber is connected to the recording device by dialing the calling subscriber or the recording device activation number. The message content of the calling subscriber is recorded, and then the called subscriber or attendant is automatically repeatedly called and recorded at the time of answering until the called subscriber or attendant is free or answers. A repeat call method characterized by sending message contents from the device.