JPS6243952A - Incoming call connection system at absence - Google Patents

Abstract

PURPOSE:To attain calling of an absent opposite party surely and economically by recognizing it as negation of absence when an absent extension is in use and connecting a calling extension calling the absent extension with a called extension being absent. CONSTITUTION:A master controller 5 recognizes that the number dialed by an extension B12 is a special number for absence incoming storage and control a main memory device 6 to store 'an extension B makes absence incoming call to an extension A'. When the extension A11 is in use, the controller 5 checks the main memory device 6 and when the extension A11 is restored and idle, the main controller 5 controls a line circuit 22 to give a ring tone to the extension B12. When the extension B12 replies, the main controller 5 controls a channel switch 4 to allow the extension B12 to listen to a call tone and controls the line circuit 21 to ring a telephone set of the extension A11. When the extension A11 replies, the main controller 5 controls the channel switch 4 to connect the channel for the extensions A11 and B12 thereby making talking to the extensions A11 and B12.

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Field of Industrial Application The present invention relates to a method for connecting an incoming call at the time of a failure in a stored program IV program control exchange.

1? 1 East's Technology 1 tt East, devices W to notify you of an incoming call when you are absent included telephones with message waiting lamps, answering machines, and mailboxes.

1 Problems to be Solved by the Invention 1 In the case of the telephone with the message waiting lamp described in 1- above, there is a drawback that the message waiting lamp is ignored. There is a point that the cost for the equipment is so large that it is not economical.

[F stage for solving the problem] According to the present invention, in the storage program control exchange number,
It has a storage device that stores incoming calls when you are absent, and recognizes that you are no longer absent when the extension you were on is used.
An incoming call connection system during an absence is obtained, which is characterized in that the calling extension that called the extension that was absent is connected to the called extension that was absent.

1 stick example] Next, the present invention will be explained with reference to the drawings.

Figure 1 shows an example of the present invention! In FIG. 1, which shows the IIji formula 14, it is assumed that extension All is absent.

At this time, when Inner 1Jln12 calls Extension All, the telephone of Extension All rings and Extension B12 hears the ejection sound.

However, since extension All is absent, extension B]2 continues to hear the ringing tone forever.

When the extension B12 performs a hooking operation, the line circuit 22 recognizes the hooking operation and sends the main controller 5 [
Extension B sends the information that J was hooked. The main memory bag W5 controls the call path SW Sochi 4 from the information that extension B has hooked J, and lets extension Hl 2 hear the second dial tone. Dial the number. The calling register trunk 3 receives the dialed number of extension B]2 and transmits it to the main control bag W5. The main control bag M5 recognizes that the dialed number of extension B12 is a special number for remembering missed calls,
By controlling the main storage device 6, it is stored that ``extension B made a missed call to extension A''.

When extension All is subsequently used, the control device 5 checks the main memory bag N6 and recognizes that ``extension B has called extension A in the absence''. Then, when extension line All is restored and becomes empty, the 1-1 control device 5
2 to ring extension B12. extension n 12
When the phone responds, the first control device 5 controls the communication path switch 4 to make the extension Fl12 hear the ejection sound, and also controls the line circuit 21 to make the telephone of the extension All ring. When the extension All responds, the main controller 5 controls the communication path switch 4 to connect the communication paths of the extension All and extension B12, allowing a communication between the extension All and extension B]2.

Next, a method for storing missed calls in the main memory will be explained with reference to FIG. Within the main memory 6, there is a missed call memory ff7 as shown in FIG. This storage device 7 can store caller extensions for each extension.

Assume that ``Extension B makes a missed call to extension A''. At this time, the missed call storage unit #a of extension A is stored in extension B.
The storage location information is written.

[Effects of the Invention] As explained above, the present invention stores an incoming call when you are absent, recognizes that you are no longer absent when the extension that was absent is used, and distinguishes between the calling extension when you were absent and the extension that was absent when you were absent. By connecting the existing extension, it is possible to call the absent party economically and reliably.

[Brief explanation of the drawing]

Fig. 1 is a relay system diagram of one embodiment of the present invention, and Fig. 2 is a relay system diagram of an embodiment of the present invention.
FIG. 3 is a diagram illustrating an example of a missed call storage system in the missed call storage in the main memory shown in the figure; 11...Extension A, 12...Extension B, 1
3...Extension C121, 22, 23...
Line circuit, 3... Outgoing register trunk,
4... Call path switch, 5... Main controller, 6... Main storage device, 7... Absent incoming call storage device. Kaya I Darkness,,'7 Sweeping 2 times

Claims (1)

[Claims] In a storage program control exchange, the calling extension that has a storage device that stores incoming calls when the user is absent recognizes that the caller is no longer absent when the absent extension is used, and calls the absent extension. An incoming call connection method during an absence is characterized in that the called extension is connected to the called extension that is absent.