JP2853224B2 - Voice message sending method, switching system, and application processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to a voice message sending method, a switching system, and an application processor in a switching system, and a switch for transferring an incoming call to a transfer destination registered by a subscriber, and accommodated in a subscriber line of the switch. In a switching system comprising an application processor connected by a control information interface for transmitting and receiving control messages, when there is an incoming call to a subscriber who has registered a service, an incoming call notification including a calling source and a called destination is provided. An exchange notifying the message to the application processor of the message; and receiving the incoming call notification message, the application processor creates a first connection request message including information of the subscriber line accommodated by the caller and transmits the message to the exchange. Step and the first connection request message A step of exchange to perform incoming call processing against Murrell subscriber line,
Sending a voice message to the caller in response to the incoming call to the called party's destination; and, after sending the voice message, the application processor causing the application processor to include a second connection request message including the caller and the destination. And sending to the exchange, and the exchange performing a connection between the caller and the transfer destination based on the second connection request message.

[Industrial applications]

The present invention relates to a voice message notification system using an application processor, and in particular, when transferring an incoming call to an extension with a variable absence registration, the destination of the call is transferred to the calling subscriber by using the application processor. The present invention relates to a voice message notification method for calling a transfer destination subscriber after notifying by voice.

With the development of personal computers in recent years, an application processor (hereinafter also referred to as an AP) that realizes a certain kind of application in cooperation by placing a personal computer outside the exchange and providing some communication message transmitting / receiving means between the exchange and the personal computer. There is a method.

[Conventional technology]

Conventionally, transmission / reception of a communication message using an AP is limited to transmission / reception of a communication message in a data format between the AP and the exchange, and notification of a voice message to a calling subscriber has not been performed. In particular, when notifying the destination address of the destination subscriber by voice message from the AP but not using the AP to create a voice message on the exchange based on data from the AP, or using only the exchange without the AP When the exchange attempts to notify the calling subscriber, the exchange can store the destination registered by the subscriber and provide a voice trunk for notifying the calling subscriber by voice. Since the voice trunk is usually realized by a ROM or the like, the message is fixed and the message cannot be changed.

In recent years, a means of realizing services using APs has appeared. Although this can flexibly respond to a user's request, a service for presenting a destination notification by voice has not been realized.

[Problems to be solved by the invention]

Heretofore, there has been a problem in that it has not been possible to flexibly respond to a user's request because notification of a transfer destination address of a call destination has not been performed by a voice message using an AP.

An object of the present invention is to enable notification of a destination by voice from an AP by enabling notification of a voice message using an AP.

[Means for solving the problem]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, 1 is an exchange, 2 is an application processor having a function of storing and updating a voice message, 3 is connecting the exchange 1 and the application processor 2,
Control information interface means 4 for exchanging necessary command information, voice transmission means 4 having a function of transmitting a voice message from application processor 2, and 5 connecting voice transmission means 4 and exchange 1, Voice message interface means for notifying the exchange 1 of a voice message from the sending means 4.

When there is an incoming call to the subscriber who has registered the service, the exchange 1 notifies the application processor 2 of an incoming notification message including the calling source and the called destination. In response to the incoming call notification message, the application processor 2 sends a first call including information on the calling party and the subscriber line accommodated.
Is created and transmitted to the exchange 1.
In addition, the exchange 1 performs an incoming call process on the subscriber line included in the first connection request message, responds to the incoming call, and sends a voice message regarding the transfer destination of the called subscriber to the calling party. Next, after sending the voice message, the application processor 2 creates a second connection request message including the caller and the transfer destination and sends the message to the exchange 2. On the basis of the second connection request message, the exchange 1 establishes a connection between the caller and the transfer destination.

[Action]

When there is an incoming call to the subscriber who has registered the service, the call from the caller is once received by the application processor 2 connected to the subscriber line of the exchange 1, and a voice message is sent from the application processor 2. To the calling party, and thereafter, the exchange 1 receiving the request from the application processor 2 executes the service to the calling party.

In response to the incoming notification message, the application processor sends the information of the subscriber line in which the application processor is accommodated to the first connection request message to the exchange, so that the exchange easily knows the subscriber line to which the application processor is connected. The switch itself does not need to be aware of the subscriber line to which the application processor is connected, and the connection of the application processor to the switch is simplified. Further, the voice message stored in the application processor 2 can be stored or updated as needed, so that it is possible to flexibly respond to a user request.

〔Example〕

FIG. 2 is a system configuration diagram according to an embodiment of the present invention. In the figure, 21 is a network such as a private branch exchange (PBX), 22 is an application processor (AP), 23 is an application processor interface (API) which is an interface between the network 21 and the AP 22, and 24 is A
A telephone circuit (LC ') for converting the digital signal from P22 into an analog signal or vice versa, 25 and 26 are subscriber circuits (LC), 27 is an extension subscriber terminal, and 28 is an office trunk (CO
T) and 29 are wide area networks connected to the central office, 30 is a main memory (MM), and 31 is a central processing unit (CPU).

21 to 25 correspond to 1 to 5 in FIG. 1, respectively.

The API 23 may be, for example, a data line such as RSC232C. Here, as an example, a data line having a general attribute of 1200 bps or the like is assumed to be asynchronous.

The PBX 21 may or may not recognize that the subscriber circuit (LC) 25 is connected to the AP 22 or may not. Here, it is assumed that they are not recognized. That is, it is assumed that the subscriber circuit (LC) 25 is viewed as, for example, an extension number 400 when viewed from the PBX 21.

FIG. 3 is a block diagram showing the configuration of the AP 22 shown in FIG. 2, and has a general configuration as a computer. In the figure, 32 is a central processing unit (CPU), 33 is a main memory (MEM), 34 is a UART which is an interface on the AP side connected to the API 23, 35 is a floppy disk for storing programs, and 36 is the present invention. A hard disk for storing such voice messages in the form of digital data; 37, a keyboard for inputting voice messages in the form of digital data; 38, a telephone circuit (LC ') for converting analog voice input from the microphone 39 into digital data; Is a console for displaying voice messages from the console 40 or the telephone circuit (LC ') 38. Telephone circuit (LC ')
24 is connected to a telephone circuit (LC ') 25 on the PBX 21 side.

An embodiment of the present invention will be described below with reference to an example of notifying a calling subscriber of a voice message when performing variable call forwarding registration.

FIG. 4 is a time sequence chart for explaining the operation of variable call forwarding registration, and FIG. 5 is a time sequence chart for explaining the execution of variable call forwarding according to the embodiment of the present invention.

FIG. 6 is a call forwarding registration presence / absence table stored in the main memory (MM) 30 of the PBX 21, and indicates whether or not the terminal corresponding to each extension number has registered the call forwarding.

FIG. 7 is a table stored in the main memory (MEM) 33 of the AP 22, which stores the extension number of a transfer destination when a call is received at a terminal registered for call forwarding.

FIG. 8 is a diagram showing an example of a command message exchanged between the PBX 21 and the AP 22.

First, the operation of variable call forwarding registration will be described with reference to FIG. When the subscriber (extension # 300) receives a call at extension # 300, in order to register a variable call forwarding to be transferred to another extension, for example, the terminal 27 of extension # 300 goes off-hook and the PBX 21 After listening to the dial tone sent from, dial the special number to register for variable transfer and the extension number of the transfer destination (for example, # 200). Here, the PBX 21 checks the absence transfer registration presence / absence table in FIG. 6, and rejects the registration if extension # 300 has already been registered (if it is “1”).
If not registered (if "0"), extension # 300
Is updated to registered (“1”). Then PBX21 is A
A command message H'1 '(hexadecimal 1) for registering the variable call forwarding is transmitted to the AP 22 via the PI 23 (see FIG. 8). This message H'1 'includes the extension # 300 of the subscriber who is the registration source and the extension # 200 of the transfer destination in the parameter portion.

Upon receiving this variable call forwarding registration message, the AP 22 updates the destination table at the time of variable call forwarding registration on the AP side shown in FIG.
A registration completion message H'2 '(see FIG. 8) is returned to the PBX 21. This completes the variable call forwarding registration. PBX21 is
Upon receiving the registration completion message, the registration acceptance tone is returned to the subscriber (A), and the subscriber (A) listens to this and goes on-hook.

It should be noted that this variable call forwarding registration itself has been conventionally performed using an AP.

Next, the execution of the variable call forwarding according to the embodiment of the present invention will be described in the fifth step.
This will be described with reference to the drawings. In FIG. 5, the subscriber with extension # 310 goes off-hook to call the subscriber with extension # 300 and listens to the dial tone.

Thereafter, the subscriber with extension # 310 dials # 300. Upon receipt of # 300, PBX 21 refers to the variable call forwarding registration presence / absence table of FIG. 6, and if # 300 is registering for variable call forwarding, incoming call notification message H'3 'indicating that extension # 310 is calling # 300 (# 300). 8) is notified to the AP 22 via the API 23. The parameters of the incoming call notification message H'3 'include a caller and a receiver. The AP 22 receives the incoming message and refers to the destination table shown in FIG.
300 knows that it is registered to be forwarded to extension # 200, and edits and stores a message to the effect that "extension # 300 will be forwarded to # 200 when absent" to the hard disk 36 as voice data, and stores the voice message. Prepare to notify PBX21. The voice data is input from the microphone 39 in FIG. 3 and A / D converted by the telephone circuit (LC ') 38 or input from the keyboard 37. On the other hand, a connection request message H'4 '(eighth) is sent to the PBX 21 so that the calling subscriber's extension # 310 is connected to the subscriber's circuit (LC) 25 of extension # 400, which is the voice port on the AP side. (See figure)
Is returned to PBX21 via API23.

Upon receiving the connection request message H'4 ', the PBX 21 receives the subscriber's circuit (L
C) A ringer is supplied to 25, and if there is a response from the subscriber circuit (LC) 25, a path for extension # 310 and extension # 400 is created and connected.
Thereafter, the PBX 21 notifies the AP 22 of a completion message H'2 '.

When the AP 22 recognizes that a ringer has arrived at the subscriber circuit (LC) 24 of extension # 400 through the telephone circuit (LC ') 24, it immediately responds, reads voice data from the hard disk 36, and reads the telephone circuit (LC' ) 24 performs D / A conversion and notifies the calling subscriber (B) of extension # 310 via the PBX 21 as a voice message. After the notification of the voice message is completed, the AP 22 connects the extension # 310 of the connection source to the extension # 310 of the connection destination to the PBX 21
A connection request message H'4 '(see FIG. 8) is issued so as to connect with 200.

The PBX 21 calls the extension # 200, and connects the extension # 310 and the extension # 200 in response to the response from the extension # 200.

When the call ends, the subscriber (B) goes on-hook and ends the call based on the variable call forwarding.

In the above-described embodiment, the notification of the voice message of the transfer destination from the AP in the variable call forwarding is performed, but the present invention is not limited to this.

For example, the table shown in FIG. 7 is only a destination, but by inputting additional information at the time of variable absence registration of a subscriber, the type of the notification message can be changed or the content of the notification message can be changed depending on the telephone number of the transmission source. For example, a time schedule may be prepared in advance, and necessary information may be notified at a corresponding time, or an alarm may be used. The table can be flexibly changed, and there are many possible table variations.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, by providing the telephone circuit also on the application processor side, a voice message whose contents can be changed as necessary is transmitted to the originating subscriber using the application processor. The notification can be made, and it is possible to flexibly respond to the request of the user.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle of the present invention, FIG. 2 is a block diagram showing a system configuration according to an embodiment of the present invention, FIG. 3 is a block diagram showing a configuration of an AP according to an embodiment of the present invention, and FIG. FIG. 5 is a time sequence diagram illustrating variable call forwarding registration, FIG. 5 is a time sequence diagram illustrating variable call forwarding execution according to an embodiment of the present invention, FIG. 6 is a variable call forwarding registration presence / absence table on the PBX side, FIG. FIG. 8 is a destination table at the time of registration of a variable call forwarding on the AP side according to the embodiment of the present invention. FIG. 8 is a view for explaining a command message between the PBX and the AP. In the figure, 1 ... exchange machine, 2 ... application processor, 3 ... control information interface means, 4 ... voice transmission means, 5 ... voice message interface means.

Claims (3)

(57) [Claims] An exchange for transferring an incoming call to a transfer destination registered by a subscriber, an application processor accommodated in a subscriber line of the exchange and connected by a control information interface for transmitting and receiving control messages. If there is an incoming call to the subscriber who registered the service in the switching system consisting of
A step of notifying the application processor of an incoming notification message including a caller and a called party; and receiving the incoming notification message, the application processor receiving information on the subscriber line accommodating the caller. Generating a first connection request message including the following, and transmitting the message to the exchange; performing an incoming call process on the subscriber line included in the first connection request message; and responding to the incoming call. Sending a voice message to the caller regarding the destination of the called subscriber; and, after sending the voice message, the application processor including a second message including the caller and the transfer destination. Creating a connection request message and sending it to the exchange, based on the second connection request message , Voice message transmission method in a switching system the exchange is characterized in that it comprises the steps of: performing a connection between the destination and the caller to. 2. An exchange for transferring an incoming call to a transfer destination registered by a subscriber, and an application processor accommodated in a subscriber line of the exchange and connected by a control information interface for transmitting and receiving control messages. In the switching system, the switching device, when there is an incoming call to the subscriber who registered the service,
Means for notifying the application processor of an incoming notification message including a calling source and a called destination; and a connection request message including information for identifying a connection source and a connection destination from the application processor. Means for performing a connection of: a means for storing information about a transfer destination registered by a subscriber; and receiving an incoming notification message including a calling party and a called subscriber from the exchange, Means for creating a first connection request message including information of the subscriber line accommodated with the caller and transmitting the message to the exchange; and responding to an incoming call from the exchange to the subscriber line, Means for transmitting to the caller a voice message regarding the transfer destination of the called subscriber based on the transfer destination stored in the storage means; After sending the message, the switching system, characterized in that a means for sending a second connection request message including the caller to the said destination to said switch. 3. An application processor accommodated in a subscriber line of an exchange for transferring an incoming call to a transfer destination registered by a subscriber and transmitting / receiving a control message to / from the exchange via a control information interface. Means for storing information about the forwarding destination registered by the subscriber, and when there is an incoming call to the subscriber who registered the service,
Receiving an incoming notification message including a caller and a called subscriber from the exchange, creating a first connection request message including information on the subscriber line accommodated with the caller, and transmitting the message to the exchange. Means for responding to an incoming call from the exchange to the subscriber line, and transmitting a voice message to the calling party to the called party based on the forwarding destination stored in the storage means. Means for sending; and a second connection request including the caller and the transfer destination such that the switch can connect the caller to a transfer destination registered by the called subscriber after sending the voice message. Means for sending a message to the exchange. An application processor, comprising: