JPH03277057A - Private branch of exchange with function of recording and dialing caller of incoming call at busy and no-reply state - Google Patents

Abstract

PURPOSE:To eliminate the need for redialing from a caller extension telephone set by recording an extension number of the caller extension telephone set of an incoming call when the incoming call comes while a key extension telephone set is busy or receives no reply and dialing a call signal to the caller extension telephone set after the end of talking. CONSTITUTION:When an extension telephone set 6 makes a call to a key extension telephone set 4 while the operator of an extension telephone set 5 and the key extension telephone set 4 are talking, a central controller 2 informs it to the extension telephone set 6 that the key extension telephone set 4 is busy and records the extension number of the extension telephone set 6 to a busy non-reply incoming call caller extension number memory area 10 corresponding to the extension number of the key extension telephone set 4. When the talking is finished by the operator of the key extension telephone set 4 and the operator operates a busy non-reply incoming call dial request key 11 of the key extension telephone set 4, the central controller 2 reads the extension number of the caller extension telephone set 6 from the busy non-reply incoming call caller extension number memory area 10 to call the extension telephone set 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application J The present invention relates to a private branch office, and more particularly to a calling system for incoming calls when the call is busy or unanswered.

[Prior Art] In conventional calling methods for incoming calls when there is a busy or unanswered call, the caller of the incoming call must call again or, if the caller of the incoming call is using a telephone equipped with a button device, press the button. The call was made again by automatically resending the other party's number.

[Problem to be Solved by the Invention 1] The conventional calling method for incoming calls when the call is busy or unanswered requires the originator of the incoming call to call again.
This has the disadvantage that the incoming caller's hands are forced to move, and if the incoming caller's terminal is a telephone with a button device, the incoming caller must operate the button to reach the other party. Automatic number retransmission allows re-dialing, but it has the disadvantage that the caller of the incoming call must have a telephone with a button device.

It is an object of the present invention to provide a service that eliminates the need for re-calling from the originating extension telephone side that received an incoming call when it was busy or unanswered.
An object of the present invention is to provide a local switching system with a function of recording and transmitting an incoming call originator when there is no response.

[Means for Solving the Problems 1] The private branch exchange with the calling function of recording the origin of incoming calls when busy or unanswered according to the present invention has the following functions: 1! It accommodates an extension telephone with a button, which is equipped with a button that sends out a request to make a call to the handset, such as a request to make a busy/no-response call, after the end of the call.

A memory area for the extension number of the incoming call originator when the telephone is busy or unanswered;
When there is no answer, the extension number of the extension telephone that is the originator of this incoming call is recorded in the incoming call originator extension number memory area in correspondence with the extension number of this extension telephone with button, and the extension number of the extension telephone that is the originator of this incoming call is recorded in the memory area. - It has a control means for transmitting a ringing signal to the originating extension telephone when a no-response incoming call origination request is received.

[Function 1: When an incoming call is received to this extension telephone with buttons while the extension telephone with buttons is busy or unanswered, the extension number of the extension telephone from which the incoming call originated is recorded, and after the call is completed from the extension telephone with buttons, When a busy/no-answer incoming call request is received, a ringing signal is sent to the originating extension telephone, so there is no need to call again from the originating extension telephone that received the incoming call when it was busy or unanswered. As a result, communication between the originating extension telephone, which receives an incoming call when it is busy or no answer, and the called extension telephone with a button becomes easy and reliable. In addition, the extension telephone that sends incoming calls does not need a button device, etc. In the case of hotel front service, etc., it is sufficient to use a regular telephone for the guest side and install a telephone with a button only on the front side. Services can be provided at low cost.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a local switching system with a calling function for recording the origin of an incoming call when busy or no answer is made according to the present invention, and FIG. 2 is a plan view showing the external appearance of the extension telephone 4 with buttons shown in FIG. It is a diagram.

In this embodiment, the incoming call request button 11 when busy/no answer
extension telephone 4 with button and extension telephone 1115.6
a main storage device 3 containing a busy/no-answer incoming call source extension number memory area 10; a central control device 2;
It has a main switch 1 and subscriber circuits 7-9.

The extension telephone with button 4 sends a busy/no response incoming call origination request 12, which is a request to send an incoming call to the AT telephone of the originator when the call is busy or no response, after the call ends. An incoming call request button 11 is provided. When there is an incoming call to the button extension telephone #14 while the button extension telephone 4 is busy or unanswered, the central control unit 2 stores the incoming call originating extension number memory area 10 when the button extension telephone 4 is busy or unanswered. Corresponding to the extension number of the extension telephone with button 1114, the extension number of the extension telephone 6 that is the originator of this incoming call is recorded, and the extension number of the extension telephone with button I! When receiving a busy/no-response incoming call origination request 12 from 14, a calling signal 13 is transmitted to the 2 originating extension telephone 116.

Next, the operation of this embodiment will be explained.

Assume that while the operator of the extension telephone FIa4 with a button and the operator of the internal telephone 5 are talking, a call is received from the extension telephone 6 to the extension telephone 4 with a button. In this case, the central control device 2 notifies the extension telephone 6 that the extension telephone 4 with buttons is busy. At this time, the central control unit 2 records the extension number of the extension telephone 116 in correspondence with the extension number of the button-equipped extension telephone 4 in the busy/unanswered incoming call originator extension number memory area IO. When the operator of the button-equipped extension telephone 4 operates the busy/no answer incoming call request button 11 on the button-equipped extension telephone 4 after the call ends, the button-equipped extension telephone 4 is centrally controlled via the subscriber circuit 7. ! l device 2
When the extension telephone with button 4 is busy/no response, an incoming call origination request 12 is sent. Central control unit f! f2 is the extension number of the caller who was calling the extension telephone with button 4 while the extension telephone with button 4 was busy from the memory area 10 for the extension number of the caller when the extension telephone with button was busy/no answer. Read out the extension number 6 and press #! When telephone Iso 6 is called and extension telephone 6 answers,
A central control device 2 controls a main switch I to connect an extension telephone 4 with a button to an extension telephone 6.

[Effects of the Invention j As explained above, the present invention has the advantage that when an extension telephone with a button is busy or there is no response, this button When there is an incoming call to the packing machine, record the extension number of the extension telephone from which the incoming call originated, and send the extension number 11 with a button from the packing machine to the incoming call request when the call is busy or unanswered. Take # in the source
i! By transmitting the ejection signal to the telephone, there is an effect that it becomes unnecessary to call again from the originating extension telephone that received the incoming call during one call or when there was no answer.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a private branch exchange with a calling function for recording the origin of an incoming call when busy or no answer is made according to the present invention, and FIG. 2 is a plan view showing the external appearance of the extension telephone 4 with a button shown in FIG. It is a diagram. DESCRIPTION OF SYMBOLS 1... Main switch 2...-Central control unit, 3... Main storage device, 4... Extension telephone with button, 5.6... Extension telephone, 7-9-... Subscriber circuit, 10...Memory area for incoming call originator's extension number when busy/no answer, IJ--Incoming call request button when busy/no answer, 12
. . . Busy/no answer incoming call origination request, 13 . . . Ringing signal.

Claims (1)

[Scope of Claims] 1. In a private branch exchange, a button is pressed to send out a busy/no-answer incoming call origination request, which is a request to the originating extension telephone for a call that is busy or no answer, after the end of the call. a memory area for the extension number of the incoming call originator when the extension telephone with button is busy or unanswered, and an incoming call to the extension telephone with button is received when the extension telephone with button is busy or unanswered; At this time, the extension number of the extension telephone that is the originator of the incoming call is recorded in the busy/no answer incoming call origination extension number memory area in correspondence with the extension number of the extension telephone with button, and the extension number of the extension telephone that is the originator of the incoming call is When receiving the busy/no answer incoming call request from the telephone,
1. A private branch exchange with a function of recording and transmitting an incoming call when there is no response during busy/no response, characterized in that the private branch exchange has a control means for transmitting a ringing signal to the originating extension telephone.