JP2860726B2 - Charge management control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a private branch exchange (hereinafter referred to as P
BX) is managed.

[0002]

2. Description of the Related Art In a conventional charge management control system, PBX is used.
When a call is made from the extension terminal to be accommodated to the office line, when the response signal from the office line is recognized, the counting of the talk time is started, and when the end of the call from the office line is recognized, the talk time is counted. Was calculated, and the call charge was calculated based on the calculated call time and the dial number of the destination (other party) terminal. In other words, the charge management control for office lines
This was done in the PBX that accommodates the calling terminal.

[0003] Such a technique is disclosed in Japanese Patent Laid-Open No. 1-189.
No. 275, JP-A-62-56069 and JP-A-62-233965.

[0004]

However, in the conventional charge management control method, connection and disconnection of the PBX are
Since the connection and disconnection of one terminal are seen from the upper network, the connection and disconnection between the actual terminal and the PBX do not coincide in time. For this reason, P and an upper network such as an ISDN network
There is a problem that an error occurs in the calculation of the talk time between the BX and the BX due to a “shift” in the timing of the signal relating to the call setting and release completion such as the incoming signal and the disconnection signal.

[0005] Further, since it is difficult for the upper network to recognize the connection state in the PBX, if there is a connection change of a terminal in the PBX, it is not possible to notify the charge information until the connection change. There was a problem.

[0006] The present invention is to solve the above problems,
To provide a charge management control method capable of accurately calculating the actual call time of an actual terminal, and to provide a charge management control method capable of managing charges for each terminal even when there is a change in terminal connection within the PBX. With the goal.

[0007]

To achieve the above object, according to the Invention The first aspect of the present invention, when the private branch exchange, the call between the office line of extension terminals and the public network is made, the call extension stores the extension number and the accommodation position of the call the extension terminal of the terminal, when the other extension terminal from the call extension terminal extension transfer is made, both the stored call duration of the call the extension terminal, the extension transfer In front of the transferred extension
Stores the extension number and the accommodation position of the extension terminal
When the call at the transfer destination extension terminal ends,
Storage means for storing the call time of the transfer destination extension terminal,
When the charge notification information transmitted from the public line network is received by the call termination of the transfer destination extension terminal, the charge notification information is received.
And the communication fee stored in the storage means.
The ratio of the talk time of the extension terminal and the transfer destination extension terminal and
Control means for calculating a call charge of the call extension terminal and the transfer destination extension terminal . In the second invention, the private branch exchange is connected to a public line network.
An extension transfer request is made from a call extension terminal that is talking to an office line to another extension terminal, and the extension to which the extension was transferred is transferred.
The terminal is in a state of talking on the telephone line with the public line network.
Then, the transfer message containing the extension number of the transfer destination extension terminal
Page to the public network, and
A transfer response message to the transfer message
The extension number of the transfer destination extension terminal and the charge notification information.
Receiving the transfer response message including the
Recognize the call extension terminal based on the extension number
And, based on the charge notification information,
It has become Bei <br/> example configuration control means for calculating a call charge for call extension terminal.

[0008]

According to the configuration of the first aspect, the private branch exchange is
The call time of the transfer source is stored each time an extension is transferred, and based on the charge notification information transmitted from the public line network and the call time of each extension terminal after the call with the public line network is completed, each extension terminal is stored. Calculate the call charge of.

Further, with the configuration of the second invention, the private branch exchange transmits the extension number of the transfer destination terminal to the public line network every time the extension is transferred, and the extension number from the public line network and the extension number of the extension number Based on the terminal charge notification information, a call charge for each extension terminal is calculated.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the configuration of an embodiment for realizing the charge management control system of the present invention. In FIG. 1, 100
A communication path switch 101 accommodates a plurality of extension terminals, each having a unique extension number, and performs connection with a central office line.
Is an ISDN network line trunk (PRI) provided with an ISDN primary group interface of "23B + D", and connects between the call path switch 100 and the ISDN network 110.
Reference numeral 102 denotes a line circuit (LIN) that accommodates terminals such as extension telephones and has a function of supplying a call current, monitoring calling / connection / disconnection, and transmitting a calling signal. Reference numeral 103 denotes an extension terminal accommodated in the line circuit 102 (hereinafter simply referred to as a terminal)
103A is also a terminal accommodated in another line circuit. Reference numeral 104 denotes an analog network office trunk (COT), which is an interface between the communication path switch 100 and the analog network 111.

Reference numeral 107 denotes a central control unit (hereinafter, referred to as a CPU) as control means for transmitting and receiving control information to and from the communication line switch 100 and performing control and services for the terminals 103 and 103A. Reference numeral 106 denotes a PBX via a bus control device (hereinafter, simply referred to as a bus) 105.
Main memory (MEM) as storage means for storing extension data, station data, processing status, and the like. 108 is an analog network office trunk 104 obtained via a bus 105
Is a call charge management device (ES) that manages charges based on call origination / connection / disconnection information.

Next, the operation of the configuration of the above embodiment will be described. Terminal 103 is an ISDN network 110 as a calling terminal
When a call is made to a called terminal (not shown) via the, the call setting message information is exchanged, and when the call setting is established, a call state is established and the PBX starts counting the call time. Thereafter, when the call is terminated, a message of disconnection recovery such as disconnection (DISC), release (REL), release confirmation completion (REST COMP), etc. is exchanged between each terminal and the ISDN network.

FIG. 2 shows the disconnection recovery sequence. In this case, a disconnect message was issued from the calling terminal,
Alternatively, the sequence differs depending on whether the call originated from the called terminal.
FIG. 2A shows a sequence in a case where the calling terminal is disconnected. A busy tone (BT) or the like is transmitted from the ISDN network 110 to the called terminal, and a disconnection message is notified. The called terminal that has received this message transmits a release message, and the calling terminal receives this release message from the ISDN network 110 and transmits a release confirmation completion message. FIG. 2B shows a case where a disconnection message is issued from the called terminal. In this case, the calling terminal transmits a release message, and the called terminal that has received the message transmits a release confirmation completion message.

Each of these messages has a predetermined format, and includes a common information element including a protocol identifier, a call number, and a message type, and a plurality of information elements including other messages. The charge notification information is one of the messages, but when the calling terminal is disconnected, the release message from the called terminal includes the charge notification information. On the other hand, if the called terminal is disconnected, the disconnection message from the called terminal will include the fee notification information.

FIG. 3 shows the structure of these messages. 109 is the information content of the disconnection message (DISC) from the called terminal in FIG.
In (a), a release message (RE
L) is the information content. Reference numeral 111 denotes the structure of fee notification information included in both these messages. As shown in FIG. 3, the charge notification information includes a charge notification information element identifier for determining that the charge notification information is provided, a charge notification content length indicating a data length of the charge display, and a type of charge such as a total charge or an advance charge. It is composed of a plurality of elements such as a charge type shown, a charge display showing charge data, and the like.

Since the call charge of the calling terminal is calculated based on the call time, the call time data is stored in the main storage device 106.
Must be remembered. From the terminal 103 to the ISDN network 11
When a call is made to 0 and a circuit number (CCT No.) “0” is captured, the CPU 107 performs the following control.
That is, the talk time timer of the calling terminal 103 is started, and the talk time data is written into a storage area (hereinafter simply referred to as an area) corresponding to the circuit number “0” in the main storage device 106. FIG. 4 shows data written to the main storage device 106.

First, when the terminal 103 captures the circuit number "0", the extension number and the accommodation position (hereinafter referred to as NEN) of the terminal 103 are written in the area a. This terminal 103
If there is an extension transfer to another terminal shown in FIG. 1, that is, the terminal 103A, the CPU 107
At the same time a call is established with the subscriber terminal of the SDN network 110, the call time of the terminal 103 is written in the area b,
The extension number and NEN of the terminal 103A are written in the area c, and a timer for the talk time of the terminal 103A is started.

If the above transfer is a line transfer, the talk time in area b is continued with the extension number and NEN of area a, that is, the talk time of terminal 103. If the transfer is a dedicated line transfer, the transfer destination terminal is regarded as an extension terminal and the terminal 1
03 is written in area b and area c
The NEN of the leased line terminal is written in, and a timer for the talk time of the leased line terminal is started.

The CPU 107 controls the ISDN network 1 shown in FIG.
Charge notification information from the main storage device 10 shown in FIG.
The charge corresponding to the talk time of each terminal accommodated in the PBX is calculated from the data which is the storage content of 6. For example, FIG.
In the example, it is assumed that the talk time of the terminal 103 written in the area b is 1 minute, the talk time of the terminal 103A written in the area d is 9 minutes, and the call charge from the ISDN network 110 is 1200 yen. I do. In this case, CP
U107 indicates that the call charge of the terminal 103 is 120 yen, the terminal 1
The call charge for 03A is calculated as 1080 yen. The call charge to each terminal is integrated by the call charge management device 108 and output for each terminal. In addition, for a call to the analog network 111, the call charge management device 108 charges as before,
It is also possible to perform charge management control in which a digital network and an analog network are mixed.

Next, a description will be given of a charge management control method when a certain calling terminal sets up a call with the ISDN network 110 and then changes to another terminal under some conditions. FIG. 5 is a diagram illustrating a transition of transfer between the terminal A and the terminal B connected to the communication path switch 100. FIG. 6 is a diagram showing the sequence.

In FIG. 5 (a), a terminal A makes a call to a central office C to set up a call. This is the sequence of the AC call in FIG. After that, in FIG.
From the terminal to the terminal B. This is the sequence of the AB call in FIG. 6, during which the terminal A and the office line C are in a “hold” state as indicated by a dotted line. Subsequently, as shown in FIG. 5 (c), a call setup is established between the terminal B and the station line C, and the sequence of the BC call in FIG. 6 is obtained.

When the PBX completes the transfer and establishes a call between the transfer destination terminal B and the station line C, the terminal is changed with respect to the ISDN network 110 as the upper network. This is notified by a transfer message (TRS). Upon receiving this, the upper network sends a transfer response message (TRSACK) to the PBX.

FIG. 7 shows the contents of the transfer message and the transfer response message. In FIG. 7, reference numeral 114 denotes a transfer message transmitted from the PBX, ie, the user side, to the ISDN network, ie, the network side. This transfer message 114 contains user information. Reference numeral 115 denotes the contents of the user information, which is the terminal extension number of the transfer destination, that is, the extension number of the terminal B. Also, 116
Is a transfer response message, and the user information includes a transfer terminal extension number which is user information of the received transfer message.

Further, the transfer response message includes fee information as in the case of the disconnection message and the release message. This charge information is charge information for the terminal A of the transfer source. The charge information of the terminal B is included in the disconnection message or the release message, or when transferred from the terminal B to another terminal, is included in the transfer message at that time.

[0025] The PBX obtains the user information and the fee information included in the transfer response message, thereby recognizing the call fee of each extension terminal even when the calling terminal is changed to another extension terminal. Can be. Further, when a terminal with a display such as a multi-function telephone (MFT) is used as the terminal, after the transfer, the call charge of the terminal at the transfer source can be immediately displayed.

In the configuration of this embodiment shown in FIG. 1, the call charge management device 1 is designed to be compatible with an analog network.
Although 08 is used, when using only the digital network, the charge can be managed only by the PBX without using the call charge management device 108.

[0027]

According to the present invention, as is apparent from the above embodiment, the talk time of the transfer source is stored every time an extension is transferred, and is transmitted from the public line network after the call with the public line network is completed. Based on the price notification information and the call duration of each extension,
Calculating the call charge for each extension terminal has the effect that an accurate call charge for each extension terminal can be calculated.

Further, the extension number of the transfer destination terminal is transmitted to the public line network every time the extension is transferred, and each extension terminal is transmitted based on the extension number from the public line network and the charge notification information of the extension terminal of the extension number. Calculating the call fee for each extension terminal has the effect that an accurate call fee for each extension terminal can be calculated.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment for realizing a charge management control method according to the present invention.

FIG. 2A is a diagram showing a disconnection recovery sequence when a calling terminal is disconnected. (B) is a diagram showing a disconnection recovery sequence when the called terminal is disconnected.

FIG. 3 is a diagram showing a format of a disconnection message and a release message.

FIG. 4 is a diagram showing data written in a main storage device of FIG. 1;

FIG. 5 is a diagram showing transition of transfer between terminals.

FIG. 6 is a diagram showing a sequence of a transfer transition of FIG. 5;

FIG. 7 is a diagram showing the format of a transfer message and a transfer response message.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Call path switch 101 ISDN network trunk (PRI) 102 Line circuit (LIN) 103 Extension terminal 104 Analog network trunk (COT) 105 Bus controller 106 Main memory (MEM) 107 Central controller (CPU) 108 Call charge management device (ES)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 15/00

Claims (2)

(57) [Claims] 1. A charge management control method for a private branch exchange that accommodates a plurality of extension terminals each having a unique extension number, establishes a connection with a public line network by setting a call, and disconnects upon completion of release. the private branch exchange, when the call between the office line of the extension terminals and the public network is made, stores the extension number and the accommodation position of the call the extension terminal of the call the extension terminal, the call when extension transfer is made to another extension terminal from the extension terminal, <br/> are both for storing the call duration of the call the extension terminal, the extension of the extension transfer transfer destination extension terminal
Storing the number and the accommodation position of the call extension terminal,
When the call destination extension terminal is completed is transmitted and storage means for storing the call time of the transfer destination in <br/> line terminal, the call termination of the transfer destination extension terminal from the public network fee When the notification information is received, the charge notification
Call charges by information and before being stored in the storage means
The call duration of the call extension terminal and the transfer destination extension terminal
And if necessary, the call extension terminal and the transfer destination extension end.
Control means for calculating the last call charge. A charge management control method for a private branch exchange. 2. A private branch exchange rate management control system for accommodating a plurality of extension terminals each having a unique extension number, connecting to a public line network by setting a call, and disconnecting upon completion of release. The private branch exchange does not issue an extension transfer request from another extension terminal to another extension terminal during a call with the office line of the public line network.
The extension terminal to which the extension was transferred is sent to the public
When a call is in progress with a line in the network,
The transfer message including the extension number of the extension terminal is transmitted to the public
The transmission message transmitted from the public switched telephone network to the public network.
A transfer response message to the destination extension
A transfer response message including the extension number of the terminal and the charge notification information is received, and based on the extension number of the transfer destination extension terminal.
To recognize the call extension terminal of the transfer source
A charge management control method for a private branch exchange, comprising: control means for calculating a call charge for a call extension terminal of the transfer source based on money notification information .