JPH01305757A - Response detection processing system for mail service - Google Patents

Abstract

PURPOSE:To surely bring an incoming side over to mail service by sending guidance from a mail device at the time of the break of a calling tone as assuming that an incoming side party responded temporarily, and subsequently, executing the mail service at the time of the following break of the calling tone. CONSTITUTION:A hook relay 1 is turned on, and a DC loop is formed through a terminal transformer 2, and a private branch exchange PBX is turned into an incoming side party calling state, and the calling tone PBT is sent to a mail device side. A mailing side receives it by a tone detection circuit 3, and intermits the relay 1 by a control device 4. Next, when the PBT becomes silent, since there is possibility that the incoming side party was turned into an answering state, it starts to send the guidance as a temporary response. Then, when silent time exceeds two sec or a response command is inputted from the incoming side party, it starts the mail service. Thus, the incoming side party can be surely brought over to the mail service.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a store-and-forward mail communication service developed over a telephone network, and in particular, when a mail device calls a called party, The present invention relates to a mail service response detection processing method for responses.

[Conventional technology]

In recent years, in addition to conventional instant communication type telephone services, attention has been paid to mail services that temporarily store communication contents in a storage device of a mail device and provide a voice service in response to a response from a recipient.

This mail service can be roughly divided into two types:

(1) Store-and-pick-up method in which mail stored in a storage device is retrieved at the recipient's convenience6
(2) A store-and-forward method in which the mail device notifies the recipient of an incoming call.

This invention belongs to the latter category.

FIG. 4 is a circuit diagram showing a PBX (private branch exchange) line interface section in a conventional mail device. In the figure, 1 is a hook relay, 2 is a terminating transformer, 3 is a tone detection circuit, 4 is a control device, and 5 is a An audible sound generator, 6 an audible sound relay, and 7 a hybrid transformer.

FIG. 5 is a service sequence diagram of the store-and-forward method in the mail device.

(Note that FIG. 5 is commonly used for the conventional example and the present invention.) FIG. 6 is a time chart illustrating response detection delay time.

Next, the operation will be explained with reference to FIGS. 4 and 5. First, although there are various target networks for the mail device, such as a public switched network and a private line network, it is assumed here that the mail device is accommodated in an extension line of a PBX. or.

The media provides explanations as audio.

The process of making a call from a mail device and calling the called party is the same as the process of making a telephone call.First, as shown in the mail sequence diagram of FIG. By forming a DC loop, the call is transmitted to the PBX (step 5TI). P.B.
When X detects the mail device's intention to make a call, it sends a dial tone for the purpose of prompting the mail device to send a register (dial) signal (step 5T2). In the mail device, the tone detection circuit 3 receives this, and the mail control device 4 turns on and off the hook relay 1 to dial the recipient's telephone number. The PBX analyzes and translates the numbers from this dial and calls the called party (step ST3).
, 5T4). When the called party answers (step 5T5)
, the mail device sends guidance to start the mail service and draws the recipient into the mail service (Step 5)
T6).

This guidance is sent from the mail storage device via an audio codec connected to the PBX interface.

Since some PBXs change the polarity of the DC loop, this response is detected by detecting the polarity of the voice mail; however, it is usually done by detecting disconnection of the ring tone (RBT). The problem here is that, as shown in Figure 6, RBT generally consists of an intermittent sound of 1 second of ringing and 2 seconds of silence, so it is difficult to reliably detect a response. , the detection condition must be that the RBT is interrupted for 2 seconds or more. When the response detection delay time is set to 2 seconds or more in this way, it means that after the called party responds, one called party is left in a silent state for 2 seconds or more. From the perspective of the called party, it is difficult to distinguish whether this two seconds is the response detection delay time of the mail device or simply an invalid call/failure of the PBX, so there is a high possibility that the called party will go on-hook again.

In order to eliminate this concern, it is conceivable to operate the audible sound relay 6 of the audible sound generator 5 immediately after dialing.

Therefore, in order to make the two-wire line from the PBX compatible with the active circuit configuration such as the central storage device of one voice mail device, the hybrid transformer 7 is designed to convert the two-wire line from the PBX into four wires for transmission and reception.

The hook relay 1 and the audible sound relay 6 are operated, the tone detection circuit 3 reads tone detection or tone disconnection detection, and the control device 4 processes the mail service.

[Problem to be solved by the invention]

Since the conventional mail service response detection processing method is configured as described above, it may not be possible to reliably recognize whether a recipient is receiving a ring from a mail device or an invalid call/failure of the PBX. Therefore, there were problems such as repeated invalid calls.

The present invention has been made to solve the above-mentioned problems, and is equipped with an audible sound detection function and a voice guidance sending function as a response detection processing method of a mail device, thereby making it possible to reliably draw the recipient into the mail service. The purpose of this paper is to obtain a method for detecting and processing responses to mail services.

[Means to solve the problem]

In the mail service response detection processing method according to the present invention, when the ring tone becomes silent, the mail device sends guidance, and when the ring tone is silent for more than 2 seconds or a response command is input from the called party, the mail device sends guidance. It was designed to provide email services from .

[Effect]

The mail service response detection processing method in this invention has a condition for detecting a response on the called side: if the line is silent, it is immediately assumed to be a response, and a guidance indicating that the call is from a mail device is sent out, and there is no actual response from the called side. In this case, upon detecting the ringing tone, the mail control state is returned to the non-response detection state to initialize in preparation for the fifth response,
After sending the guidance, if the ringing tone remains silent for more than 2 seconds or if there is a response from the called party, the mail service is started.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, the same parts as in FIGS. 4 to 6 are designated by the same reference numerals. Reference numeral 8 denotes a noise detector for detecting noise in the signal output from the hybrid transformer 7. In FIGS.

Next, the operation of the present invention will be explained below.

The mail sequence of operation here is the same as that shown in FIG.

First, as shown in FIG. 1(A), the PBX puts the called party in a calling state and sends RBT (ring tone) to the mail device side (step ST5). From the mail device side, it is clear that the called party is not responding during the RBT ringing time, so it remains in the ringing/waiting for response state and then the RBT.
When the BT becomes silent, there is a possibility that the called party is in a response state, so as shown in (C) and CD) in Figure 1, the guidance "This is...J" will be sent as a response. (Step 5T6), and if the silent period exceeds 2 seconds or a response command is input from the recipient, the mail service will issue a message saying "This is a mail device..." as a true response. Continue voice mail service.

In addition, in the above embodiment, the case where the RBT OFF period is regarded as a response from the called party was explained.
Depending on the surrounding environment in which the incoming telephone is installed, the level of one ambient noise may be higher than the disconnection section of the RBT. , As a response, a transition is made from the assumed response state to the true response state. Therefore, the recipient can always hear guidance that helps them find the right destination, which gives them a better impression of receiving the email. In the embodiment, the called party who answered midway through the RBT interruption will hear the guidance from the middle.

Further, FIG. 2 is a line interface diagram of a mail device to which a noise detector 8 is added. It is assumed that the noise detector 8 includes a filter so that it does not operate in RBT. FIG. 3 also shows a timing diagram.

In this configuration, if the terminal device is located in a place with little ambient noise, the basic configuration will be used.

Further, depending on the target PBX, there is a type that makes a click sound when connecting the mail device and the recipient in response to the recipient's response. When connected to such a PBX, adjusting the threshold and filter band of the noise detector 8 shown in Figure 2 to match this click sound will ensure that a response is detected and guidance that has been cued is sent out. be able to.

The timing diagram is also the same as in Figure 3.

In addition, it has been explained that temporary response detection is performed by intermittent RBT for each ink using the output of the tone detection circuit 3, but after the first disconnection is detected, guidance transmission is controlled by the internal timer of the control device i4. It is also possible to have a configuration in which

Note that although the media of this mail device has been explained as an example of voice mail, it does not apply to media such as FAX, e-mail, data, etc.

〔Effect of the invention〕

As described above, according to the present invention, guidance is sent from the mail device on the assumption that the called party has made a board response when the RBT is cut off, and then the mail service is performed when the next RBT is cut off, thereby ensuring that the called party This has the effect of attracting people to email services.

[Brief explanation of the drawing]

FIG. 1 is a timing diagram when a response is detected by a mail device according to an embodiment of the present invention, and FIG. 2 is a timing chart of the mail device of FIG.
BX interface circuit diagram, FIG. 3 is a timing diagram at the time of response detection of this invention equipped with a noise detector, FIG. 4 is a PBX interface circuit diagram of a conventional mail device, and FIG. 5 is a conventional example and an embodiment of this invention. FIG. 6 is a sequence diagram when a response is detected by the mail device, and FIG. 6 is a response timing diagram of the conventional mail device. In the figure, A is the ringer tone (RBT), B is the called party, and C is the mail message.
Special, 8 □ Yobishi □ Yoyokai □ Figure 1 Figure 2 IA Figure 3 Man 4 Figure. 6th S

Claims (1)

[Claims] In a mail service response detection processing method in which a sender stores outgoing mail in a temporary storage device via a mail device connected to a PBX, calls a called party, and transmits the mail in the form of media, the PBX is in a ringing state and sends a ringing tone to the mail device side, and the mail device maintains the called party's ringing/response state only while the ringing tone is ringing, and when the ringing tone becomes silent, the mail device sends a ringing tone to the mail device. A mail service response detection processing method characterized in that transmission of guidance is started, and the mail service is started when the silent time of the ring tone exceeds 2 seconds or when a response command is input from the called party.