JPS6319948A - Message information storing system - Google Patents

Abstract

PURPOSE:To attain a storing system for message information with an inexpensive memory by using a message information storing circuit which is connected to a central office track to use the output of a voice message information switching circuit as an input and also to send an output to said switching circuit. CONSTITUTION:A special number for start of storage of message information received from a subscriber is identified by a central controller after the connection of a trunk line is processed. In such a case, an order signal (a) is transmitted to the input/output control part 16 of a message information memory 15 set at a message information storing part to give an indication for start of storage of the memory. Then a gate switching signal (b) is outputted to a selection circuit 14 form the part 16. The voice information on the trunk line is converted into the digital signals by a pulse code modulator 13 and stored in the memory 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a message information storage system, and more particularly to a message information 89 system in an electronic private branch exchange device that allows identification of central office line trunk numbers.

[Conventional technology]

Conventionally, this type of message information storage device was included in the system, and storage of voice/message information and message transmission were performed by a common storage device.

[Problem that the invention seeks to solve]

The conventional message information storage method described above is expensive and uneconomical when the message information storage device is shared, when only storing simple voice information, or when used for services that store short message lengths. There has been a problem in that there are only a limited number of cases in which message information storage is adopted from the front.

[Means for solving problems]

The message information storage method of the present invention includes a voice/message information switching circuit and a message that is connected to correspond to a central office line trunk, receives the output of the voice/message information switching circuit as input, and sends the output to the voice/message information switching circuit. The message information storage circuit is equipped with an information storage circuit and an information storage control section that completely controls the message information storage circuit.

[Effect]

In the present invention, the information stored in correspondence with the trunk can be read even by a subscriber other than the subscriber who was on the call.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention, and shows an example of a relay system.

In order to facilitate understanding of the present invention, this will be explained first.

In the figure, 1 is a digital switch, and this digital switch 1 has message information registered subscribers (hereinafter referred to as
A subscriber line 4 for (referred to as a subscriber) 3 is connected to a central control unit 2 that controls the input/output of message information by a storage program control system and a central office line trunk 5. It is connected to R5 compatible.

Next, the operation of the embodiment shown in FIG. 1 will be explained.

First, subscriber 3 dials the message information storage special number during a normal call connection. The central controller 2 identifies this dialed digital signal and connects the message information storage section 6. Subsequently, the voice information of the person on the central line who is talking to the subscriber 3 is digitally encoded and stored in the message information storage section 6.

Then, the end of message registration is determined by the subscriber 3 dialing the special number again or automatically after a certain period of time has elapsed.

Next, in order to output the stored voice, the subscriber 3 acquires the office line trunk 5 that was used at the time of joining using the trunk designated acquisition function, and dials a special number.

The central office line trunk number in use can be identified by, for example, displaying it on the central office line display panel of a distributed relay stand (not shown), or displaying the trunk@minute on the display section (not shown) K of a high-performance telephone. be.

Now, the present invention is implemented as follows.

FIG. 2 is a block diagram showing a specific configuration of an embodiment of the present invention. In the diagram, 11 is a station line interface, 12 is a hybrid circuit, 13 is a pulse code modulator, and 14 is a selection circuit. constitutes a voice/message information switching circuit. Reference numeral 15 denotes a message information memory, and this message information memory 15 has a message information storage circuit which is connected to correspond to a central office line trunk, receives the output of the voice message information switching circuit, and sends the output to the voice/message information switching circuit. It consists of Reference numeral 16 denotes an input/output control section, and this input/output control section 16 constitutes an information storage control section that controls the message information storage circuit.

17 is a digital highway transmission path. In addition, C
PU corresponds to the central control unit 2 shown in FIG.

Next, the operation of the embodiment shown in FIG. 2 will be explained with reference to FIG.

First, after the central office line connection process, the message information storage start special number from subscriber 3 shown in FIG.
2, an order signal a is sent from the central control unit 2 (CPU) of FIG. 1 to the input/output control section 16 of the message information memory 15 in the message information storage section 6 of FIG. Gives an instruction to start memory accumulation.

Here, a gate switching signal is outputted from the input/output control unit 16 to the selection circuit 14, and voice information of the central office line is converted into a digital signal by the pulse code modulator 13, and the message information memory 15 converts the voice information of the central office line into a digital signal. is memorized.

The end of message storage is then executed by the message information storage end special number dialed again by the subscriber 3 or by the elapse of a certain period of time.

Next, after the call between subscriber 3 and the central office line ends, order signal a is input from the central control unit 2 (CPU) to off-hook subscriber 3, capture the registered office line, and dial the special number of subscriber 3. The input signal is sent to the output control unit 16, the selection circuit 140 switches the input signal, the output of the message information memory 14 is connected to the digital highway transmission path 17, and the registered message is output to the subscriber 3.

As described above, the present invention allows a system to be constructed by installing a message information storage unit made of inexpensive memory only in necessary trunks, without installing an expensive common device for message services. The information stored in the trunk can be read by anyone other than the subscriber who was on the call, so for example, when a subscriber receives a call for an absentee, messages from the central office line can be temporarily stored in the trunk. In addition, the absentee can perform a message function such as reading out the stored information in the trunk by trunk designated capture after returning home.

〔Effect of the invention〕

As explained above, according to the present invention, a system can be constructed by installing a message information storage section consisting of an inexpensive memory only in the necessary trunks, without installing an expensive common device for message services. Therefore, the practical effect is extremely large.

In addition, the information stored in the trunk can be read by a subscriber other than the subscriber who was on the call, so for example, if a subscriber receives a call on behalf of an absentee, a message from the central office line may be sent to the subscriber. This is extremely effective in that it enables a message function such as temporarily storing the information in the trunk and reading out the stored information in the trunk after returning home by specifying the trunk.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention;
FIG. 2 is a block diagram showing a specific configuration of an embodiment of the present invention. 14... Selection circuit, 15/11110 message information memory, 16... Input/output control unit. Patent questioner: NEC Corporation

Claims (1)

[Claims] In an electronic private branch exchange device capable of identifying a central office line trunk number, a voice/message information switching circuit and an output of the voice/message information switching circuit that is connected to correspond to the central office line trunk are input, and the output is the output of the voice/message information switching circuit. 1. A message information storage method comprising: a message information storage circuit that sends a message to an information switching circuit; and an information storage control section that controls the message information storage circuit.