JP3039726B2 - Intertalk control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intertalk control system used in a private branch exchange and the like.

[0002]

2. Description of the Related Art Conventionally, in securities companies and banks, currency exchange, bonds,
Along with the diversification and diversification of call systems for trading business of stocks, etc., one telephone terminal accommodates multiple lines such as office lines, dedicated lines, extension lines, etc. 2. Description of the Related Art A telephone terminal (hereinafter, referred to as a call desk) that accommodates buttons is used.

[0003] Further, when making an interconnection or transfer connection between these call terminals, a key for extension and departure is generally provided on the surface of the call terminal. In this case, a key is pressed during the display of the incoming call, so that a call is made. If a call is made by automatic answering with only this call stand connected, another line circuit is pulled into the call stand as an intertalk line, and when a call is made inside, this newly provided line circuit , And the called party automatically answers the call to make an intertalk call.

[0004]

However, in the above-described conventional intertalk control system, when an intertalk function is added to a call stand handled by a private branch exchange, the intertalk line is provided separately from a general outgoing / incoming line. It is necessary to provide a line circuit, which increases the cost of hardware, and also requires consideration of expanding the accommodation space in the exchange, which is uneconomical. In addition, a dedicated response display circuit must be added for the display of the response of the recipient, and there is a problem that the cost is increased.

The present invention solves such a conventional problem. By performing intertalk control using a general transmission / reception line, an intertalk line is not required, and hardware for that purpose is required. It is an object of the present invention to provide an intertalk control method which can reduce costs and is economically advantageous.

[0006]

According to the present invention, there is provided an exchange for connecting a plurality of extension terminals and controlling exchange connection between the extension terminals and an external circuit network. This is an intertalk control method in which one of the extension terminals receives a call from another extension terminal and receives a call to another extension terminal, and controls intertalk communication between the extension terminal on the calling side and the extension terminal on the receiving side. Te, a extension memory provided in correspondence with each of said extension terminal, Intato
Intertalk flag and status identification
An extension memory for storing information, an intertalk transmission key provided for each of the extension terminals for transmitting intertalk transmission information, and an extension terminal number information for the intertalk receiving side provided for each of the extension terminals. Dial key for performing, and the intertalk transmission information transmitted by the operation of the intertalk transmission key of the extension terminal on the transmission side,
Receiving means for receiving the extension terminal number information of the intertalk receiving side transmitted by the operation of the dial key; and the extension memory corresponding to the extension terminal of the transmitting side by the intertalk transmission information received by the receiving means. Means for setting an intertalk flag indicating that an intertalk call is being performed, and receiving the extension terminal number information of the intertalk receiving side, and identifying the state of the extension memory corresponding to the extension terminal of the intertalk receiving side. Refers to the information and determines whether an intertalk call can be made to the extension terminal on the called side
Identification means for identifying, when said identifying means is judged to be incoming, the extension memory corresponding to the extension terminal of the called side, and means for setting the inter-talk flag indicating that performing the inter-talk call, the incoming call Means for setting an intertalk flag in the extension memory corresponding to the extension terminal on the side, and sending intertalk reception information indicating that the call is an intertalk call reception to the extension terminal on the receiving side; A communication path setting means for setting a communication path for an intertalk call between the extension terminal on the calling side and the extension terminal on the receiving side when recognizing an automatic response from the extension terminal on the receiving side. It is.

[0007]

According to the present invention, when a call is made from an extension terminal on the calling side and an extension terminal on the receiving side is called by the operation of the caller, the extension memory corresponding to the extension terminal on the receiving side is intertalked. Flag and state identification information
After the information is stored , the receiver sends outgoing intertalk information indicating that the incoming call is an intertalk call to the extension terminal on the receiving side. An intertalk call is established by setting a communication path for an intertalk call between the extension terminal on the receiving side and the extension terminal on the receiving side.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an intertalk control system according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an embodiment to which an intertalk control system according to the present invention is applied. In FIG. 1, reference numeral 1 denotes a main central control unit (CPU) for performing an exchange process; 2, a main memory (MM) in which an intertalk control program and information related to intertalk are stored; Call stand ( BD ) for performing operations related to incoming and outgoing connections
And has a board surface as shown in FIG. Also, 9
Denotes a communication path switch, and 10 denotes a network (NW).

The call terminals 3 to 5 are connected to line circuits (DLIN) 6 to 8 for the call terminals, respectively. A control device (not shown) is built in the line circuits 6 to 8 for the call terminals. When the keys of the call terminals 3 to 5 are pressed, the control device notifies the key information to the central control device 1 and, in accordance with an instruction from the central control device 1, the lamp information at the time of the intertalk transmission, the By notifying the call incoming line circuits 6 to 8 of the incoming call information and the like,
Intertalk control for the call stands 3 to 5 is executed.

At the time of intertalk connection, a communication path is formed in the network 10 via the communication path switch 9.

As shown in FIGS. 3 and 4, a transmission information receiving memory 12 and an extension memory 13 are provided inside the main memory 2. This transmission information receiving memory 12
Is a memory that receives key information depressed in the call operation of the call terminals 3 to 5 and temporarily stores the key information. An intertalk call identification flag, a line circuit number for the call terminal, and an extension key number to be used Extension terminal number information is stored. Note that the inter preparative chromatography click generation identifying flag, if the inter-talk calling ( "INK" key 20 pressed) becomes "1", if not in data Talk outgoing "0".

The extension memory 13 stores incoming call information such as an intertalk flag, which is intertalk transmission identification information, STN, which is state identification information, and an extension key number, which is identification information of an extension terminal. Information such as a line is stored.

FIG. 5 is a state transition diagram for embodying the present invention. Reference numeral 14 denotes a call stand empty state before intertalk transmission. Reference numeral 15 denotes a dialing state for accepting a dial after the transmission of the intertalk. Reference numeral 16 denotes a state during an intertalk call when reception is completed in the dialing state 15 and connection is possible as a result of the analysis. These states are stored in the extension memory 13 as “STN”. “STN” indicating the states 14, 15, and 16 is stored in FIG.
, They are "0", "1", and "2", respectively.

Next, the operation of the above embodiment will be described with reference to the flowchart of FIG. FIG. 6 shows a processing routine at the time of intertalk connection. In the present embodiment, an operation in a case where an intertalk connection is performed from a call terminal 3 as a calling terminal to a call terminal 4 as a receiving terminal will be described.

First, when the operator of the communication desk 3 performs an intertalk connection, when the "INT" key 20 of the intertalk key on the panel shown in FIG. 2 is pressed, the intertalk transmission information is transmitted to the communication line circuit 6, It is received by the central controller 1 via the network 10 (step S1), and the central controller 1 stores this intertalk transmission information in the transmission information reception memory 12 shown in FIG.

The contents of the intertalk transmission information are information such as an intertalk transmission identification flag, a line circuit number for a call desk, and an extension key number to be used. In this case, the "INT" key 20, which is an intertalk key, is pressed. Therefore, the intertalk transmission identification flag is set to "1", and the extension key number to be used is set to "1" because the currently available extension 1 is used. Next, the central controller 1 transmits the transmission information reception memory 12
It is checked whether or not the calling is restricted based on calling subscriber information (not shown) (step S2), and it is checked whether or not the caller 3 can make a call.

In this check, it is determined whether or not the value of the transmission information reception memory 12 is an allowable value, and whether or not the calling subscriber is in an intertalk transmission allowable class is determined. If so, a busy connection is made (step S3), and a busy tone (BT) is transmitted to the communication terminal 3 to notify that the call cannot be made.

On the other hand, when it is determined that the transmission is permitted as a result of the transmission restriction check in step S2, the central controller 1 sets the extension memory 1 shown in FIG.
The necessary intertalk transmission information is set for No. 3 (step S4).

An example of setting an area on the transmission side of the extension memory 13 will be described with reference to FIG. First, STN which is the state number
As shown in FIG. 5, the state transitions from the call-standby state 14 to the dialing state 15, so that the STN is set to "1". The next intertalk flag is set to "1" because it is an intertalk call, and "1" is set to transfer the contents of the extension key number.

Next, an outgoing call control for the outgoing call stand 3 is performed (step S5), and a lamp control and an outgoing sound are transmitted. As the lamp control, the lighting information of the inter-talk lamp and the extension 1 key lamp is transmitted from the central control unit 1 via the intercom line circuit 6, and "INT" of the intertalk shown on the panel of the intercom 3 in FIG. Key 20,
A lamp (not shown) of the "extension 1" key 21 lights up.
In addition, regarding transmission of a dial tone, a dial tone is transmitted to the line circuit 6 for the call table in accordance with an instruction from the central control device 1, and the system waits for the operator of the call table 3 to dial.

Next, when the operator of the call table 3 dials the extension number of the call table 4, the central controller 1 translates the received dial number (step S6), and determines the accommodation location of the called party based on the dial number. It is calculated (step S7). That is, an incoming call restriction check is performed by obtaining the accommodation position of the line circuit 7 for the call stand.

In this check process, the extension memory 13 is identified from the accommodation location of the called party (step S8),
Based on the extension memory 13 thus identified and the incoming subscriber information (not shown), it is checked whether the incoming call is possible, that is, whether the incoming call is restricted (step S9). If the incoming call terminal 4 is in the intertalk incoming call restriction, the process proceeds to step S3 to perform a busy connection, and sends a busy sound to the call terminal 3 to notify that the incoming call cannot be received.

On the other hand, when the extension memory of the incoming call terminal 4 is empty and the incoming call for intertalk is not restricted, it is determined that the incoming call can be received.
The information is set in the area of the receiving side of No. 3 (step S1
0). In the case of the outgoing call stand 3, the state number STN changes from the dialing state 15 to the intertalk call state 16 as shown in FIG. 5, so "2" is set, and the values of the intertalk flag and the extension key are set. The set contents are held as they are.

Since the setting of the extension memory 13 corresponding to the incoming call terminal 4 is performed in the same manner as the outgoing call terminal 3, the state number STN is "2", the intertalk flag is "1",
The extension key number identifies a key number to be used for intertalk reception, and the number of the “extension 1” key 21 is set to “1”.

As a result, the intertalk incoming call control is performed on the memory (step S11). As the control contents, the "extension 1" key 21 of the incoming call terminal 4 and the inter-talk lamp lighting information are transmitted through the line circuit 7 for the call terminal. In response, the "extension 1" lamp is turned on. In addition, the central control device 1 can realize an intertalk call by forming a communication path between the caller's line circuit 6 on the calling side and the caller's line circuit 7 on the receiver side.

In this way, an intertalk connection is made possible. In the case of a general incoming call or an incoming call during transfer,
The intertalk flag of the extension memory 13 is not set,
That is, since the “INT” key 20 has not been pressed,
Since it is "0", no inter-talk lamp information is transmitted to the incoming call terminal, and only a general extension key is received.

[0027]

According to the present invention, as is apparent from the above-described embodiment, when an intertalk call is made from a calling terminal, necessary information is set in an extension memory by a central controller, and based on the intertalk information in the extension memory. , Using a general outgoing / incoming line, making a call and automatically answering. Since an intertalk call is made, it can be controlled without adding a dedicated intertalk line, thus reducing hardware costs. Has the effect that it becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment to which an intertalk control system according to the present invention is applied.

FIG. 2 is a plan view of the call stand in FIG. 1;

FIG. 3 is a configuration diagram of a transmission information reception memory inside a main memory in FIG. 1;

FIG. 4 is a configuration diagram of an extension memory inside a main memory in the embodiment of FIG. 1;

FIG. 5 is a state transition diagram of an intertalk connection for explaining the operation of the embodiment of FIG. 1;

FIG. 6 is a flowchart of a processing routine at the time of intertalk connection for explaining the operation of the embodiment of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central control device 2 Main memory 3 Talk station 4 Talk station 5 Talk station 6 Talk station line circuit 7 Talk station line circuit 8 Talk station line circuit 9 Talk path switch 10 Network 12 Outgoing information reception memory 13 Extension memory

Claims (1)

(57) [Claims] 1. An exchange for connecting a plurality of extension terminals and controlling a switching connection between the extension terminals and an external circuit network, wherein a call is transmitted from one of the extension terminals to another extension terminal. An intertalk control method for receiving an incoming call at a terminal and controlling intertalk communication between the extension terminal on the calling side and the extension terminal on the receiving side, wherein an extension memory provided for each of the extension terminals And the intertalk transmission identification information
An extension memory for storing a flag and state identification information; an intertalk transmission key provided for each of the extension terminals for transmitting intertalk transmission information; and an extension terminal on the intertalk receiving side provided for each of the extension terminals A dial key for transmitting number information; the intertalk transmission information transmitted by operating the intertalk transmission key of the extension terminal on the transmission side; and the extension of the intertalk reception side transmitted by operating the dial key. receiving means for receiving the terminal number information, the inter-talk transmission information which the receiving unit receives, in the extension memory corresponding to the internal terminal of the calling side, the inter-talk flag indicating that performing the inter-talk call Means for setting, when the extension terminal number information of the intertalk receiving side is received, the extension end of the intertalk receiving side Referring to the state identification information of the extension memory corresponding to the identification hand <br/> stage to identify whether it is possible inter-talk call is relative extension terminal of the called party, when said identifying means is judged to be called , set to the extension memory corresponding to the extension terminal of the called side, and means for setting the inter-talk flag indicating that performing the inter-talk call, the inter-talk flag extension memory corresponding to the extension terminal of the called side Means for transmitting intertalk incoming call information indicating that the incoming call is an intertalk incoming call to the extension terminal on the receiving side; and recognizing an automatic response from the extension terminal on the receiving side to the intertalk incoming call information, An intertalk system comprising: a communication path setting means for setting a communication path for an intertalk call between a calling extension terminal and the called extension terminal. Method.