JPS614353A - Subsidiary device of telephone exchange - Google Patents

Abstract

PURPOSE:To make it possible that a terminating subscriber receives a message after an originating subscriber leaves the message to disconnect a call during interruption of the call after response of the terminating subscriber. CONSTITUTION:When a terminating subscriber 8 transmits a signal (a) which starts recording of the message of an originating subscriber 7, a signal detecting circuit 1 detects the signal (a) and transmits it to a controller 2. If the originating subscriber 7 leaves the message to disconnect the call thereafter, the signal detecting circuit 1 detects a disconnection signal (b) of the originating subscriber and transmits it to the controller 2. When receiving the disconnection signal of the originating subscriber, the controller 2 controls a message recording and reproducing device 3 to stop reception and recording of the message and controls an originating subscriber disconnection reporting device 5 to report it to the terminating subscriber 8 that the originating subscriber 7 disconnects the call. The originating subscriber disconnection reporting signal is transmitted to the terminating subscriber 8 through a switching network 6. When the terminating subscriber 8 transmits a signal a' which indicates reproducing of the message of the originating subscriber, the signal detecting circuit 1 detects the signal a' and transmits it to the controller 2.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to ancillary equipment for telephone exchanges.

[Prior art and its problems]

Traditionally, message recording and playback equipment in telephone exchanges automatically responds when it detects a ringing signal instructed by the called subscriber, sends a message to the calling subscriber, and then automatically records the calling subscriber's message and plays it back at a later time. is configured to do so. Therefore, once the called subscriber answers, if the called subscriber leaves the call on hold and suspends the call for a long time, the calling subscriber may have to disconnect the call during the call interruption. When a call is made, it is not possible to leave a message for the called subscriber, and once the telephone is connected, even a simple message such as the business, name, etc. cannot be conveyed.

There is also a telephone handset holder format that records and plays this type of message, but with such a system, the device must be installed for each telephone terminal and the space for the device is limited. There were drawbacks that made it necessary.

[Purpose of the invention]

In the present invention, during a call interruption after the called subscriber answers, the called subscriber uses a dial operation to instruct the exchange to send a message to the calling subscriber, and also to record the message from the calling subscriber. recording starts and stops when a disconnection signal from the calling subscriber is detected or a dial operation from the called subscriber, and if a disconnection from the calling subscriber is detected, the calling subscriber informs the called subscriber that the calling subscriber has disconnected. The above-mentioned drawback can be solved by having the function to play back the message left by the calling subscriber and send it to the called subscriber by dialing the called subscriber. To provide an auxiliary device for a telephone exchange that allows a called subscriber to receive a message after the subscriber leaves a message and disconnects the call.

[Structure of the invention]

To this end, the configuration of the present invention includes a device located in a telephone exchange for recording and reproducing messages from a calling subscriber via a switching network, a device transmitting a message to a calling subscriber, and a device for sending a message to a calling subscriber via a switching network. A device that notifies the called subscriber of the disconnection when it detects a disconnection signal when a caller disconnects the telephone; It is equipped with a control device that performs reception, recording, playback, and transmission, and also stops recording when it detects a disconnection signal from the calling subscriber, and records messages from the calling subscriber by the dialing operation of the called subscriber. It also allows for playback and transmission.

[Embodiments of the invention]

Next, one embodiment will be described with reference to the drawings.

The figure shows an auxiliary device for a telephone exchange according to the present invention.

It is a book diagram of an example.

In the figure, when a called subscriber 8 sends a signal a to start recording a message from a calling subscriber 7, a signal detection circuit l detects the signal a and sends it to the control device 2. The control device 2 controls the message transmitting device 4 to send the message to the originating subscriber 7. Next, when the control device 2 receives the message sending completion signal from the message transmitting device 4, it controls the message recording/reproducing device 3 to start receiving and recording the message from the calling subscriber 7. Thereafter, when the calling subscriber 7 leaves a message and disconnects the call, the signal detection circuit 1 detects the calling subscriber's disconnection signal and sends the signal to the control device 2. When the control device 2 receives the originating subscriber disconnection signal,
The message recording/playback device 3 is controlled to stop receiving and recording messages, and the calling subscriber disconnection notification device is configured to notify the called subscriber 8 that the calling subscriber 7 has disconnected the call. Control 5. The originating subscriber disconnection notification signal is sent to the terminating subscriber 8 via the switching network 6. Subsequently, when the called subscriber 8 transmits a signal a' instructing reproduction of the message of the calling subscriber 7, the signal detection circuit 1 detects the signal a' and sends it to the control device 2. The control device 2 is for message recording and recording.
The reproduction device 3 is controlled to reproduce the message of the calling subscriber 7 and send it to the receiving subscriber 8.

〔Effect of the invention〕

As explained above, according to the accessory device of the telephone exchange according to the present invention, during the interruption of the call after the called subscriber answers, the called subscriber uses a dial operation to instruct the exchange to send a message to the calling subscriber. When transmitting a message, it starts recording the message from the calling subscriber, stops recording by detecting a disconnection signal from the calling subscriber or by dialing from the called subscriber, and then detects that the calling subscriber disconnects. Notifies the called subscriber that the calling subscriber has disconnected, and later plays the message left by the calling subscriber by dialing the called subscriber and sends it to the called subscriber. The terminating subscriber can receive a message after the calling subscriber leaves a message and disconnects the call during a response wave call interruption. It has the advantage of being very convenient.

[Brief explanation of the drawing]

, tnu * q Ming 1 section 6 telephone exchange 0 attachment "to" is a block diagram of an embodiment. 1... Signal detection circuit 2... Control device 3... Message recording/playback device 4... Message Transmitting device 5... Calling side subscriber disconnection notification device 6... Switching network 7... Calling side subscriber 8... Calling side subscriber

Claims (1)

[Claims] a device located in a telephone exchange for recording and reproducing messages from a calling subscriber via a switching network; and a device for transmitting messages to a calling subscriber;
A device that notifies a called subscriber of the disconnection when a disconnection signal is detected when a calling subscriber disconnects a call, and a device that sends a message by dialing the called subscriber and receives a message from the calling subscriber. -Equipped with a control device that performs recording, playback, and transmission, and also stops recording upon detection of a disconnection signal from the calling subscriber, and allows the calling subscriber's message to be recorded and transmitted by dialing from the called subscriber. An auxiliary device for a telephone exchange characterized by being capable of playback and transmission.