JPH05276274A - Communication managing device - Google Patents

Abstract

PURPOSE:To attain the unitary management of the recording of the transmission and reception of plural communication equipment on a transmission path. CONSTITUTION:Call control information on the transmission path is inputted through a receiver 1 and a separator circuit 3. The classification of the inputted call control information is identified, and the information of a specific area included in the inputted call control information is extracted by a control part 6. The identified classification of the call control information, and the extracted information of the specific area included in the call control information are stored in a memory 7. Then, the stored information is edited to a prescribed format, and outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication management device capable of centrally managing call origination / receipt records of a plurality of communication terminals connected to a transmission line in a subscriber's house.

[0002]

2. Description of the Related Art CCITT (International Telegraph and Telephone Advisory Committee)
Construction of ISDN (Integrated Services Digital Network), which has completed international standardization in Japan, is progressing, and it is expected that it will be widely spread to general households as a future basic communication network.

In the basic interface of ISDN, two information (B) channels having a transmission capacity of 64 Kbps for transmitting terminal information such as voice, data, and image between terminals on a transmission line in a subscriber's house, and a terminal 16 Kb for transmitting call control information for controlling outgoing and incoming calls between the network and the network
One of the features is that by multiplexing and transmitting with a signal (D) channel having a transmission capacity of ps, up to eight communication terminals such as telephones, facsimiles and data terminals can be connected to a bus on the transmission path in the subscriber's house. Is one. The signal channel adopts a common signal channel method that allows multiple communication terminals connected to the bus to access it in common, and is used for call setup for outgoing and incoming calls in the call control information transmitted and received on this signal channel. The call control information to be transmitted includes communication information attributes such as sender address / subaddress, voice, and data,
Information such as user information and user information, and call control information at the time of disconnection / release includes various information such as communication charges or indication of reason such as busy of partner, failure of partner terminal, etc. It is possible for the subscriber to manage call origination / termination records such as communication partner, communication time, communication charge, etc.

Even if each communication terminal has a function of recording call control information transmitted and received between the terminal and the network as described above, generally, each communication terminal transmits and receives to and from the network. It is only possible to record the call control information.

Therefore, when it is possible to connect a plurality of communication terminals to the bus on the transmission line in the subscriber's house, such as the ISDN basic interface, each of the communication terminals connected to the bus records the incoming and outgoing calls. Even if it has a function, in order to centrally manage the call origination / receipt records of multiple communication terminals on the subscriber line basis, that is, on multiple transmission terminals in the subscriber's premises, the subscriber must manage the call origination / receipt records of each communication terminal. It takes time and effort to collect data depending on the work.

The function of recording incoming / outgoing calls at a communication terminal can be realized relatively easily by a communication terminal such as a facsimile, which itself has an output means such as a display and a printer, but it can be realized by a telephone or the like. As described above, if these functions are installed in an originally small and low-priced communication terminal, the terminal may become large and expensive.

Further, even if all the communication terminals used in the subscriber's home have a function of recording incoming / outgoing calls, the recording of incoming / outgoing calls is made into a hard copy (paper) like the model of the communication terminal, eg, facsimile. Some are output, some are simply output to an LCD (liquid crystal display), and the like, and the recording output formats are different, which makes it difficult to use.

On the other hand, as one of the services on the network (exchange) side, the incoming / outgoing call from the communication terminal of the subscriber processed by the exchange of the network is recorded on the network side, and the subscriber is notified as a call charge statement. However, since the network side cannot identify what type and how many communication terminals are connected in the subscriber's premises, it is only possible to record incoming / outgoing calls for each subscriber line. Therefore, the subscriber can only know the communication record in the form of totaling all the communication terminals in the subscriber's house from the call charge statement, and the charge statement from the network can only know the previous month's amount with a delay of one month. There is a lack of detail.

On the other hand, when a communication control device such as a private branch exchange or a key telephone device is installed in the subscriber's house, the communication control device itself controls the incoming and outgoing calls of the communication terminal connected to the extension line. Calls can be recorded by notifying the call management device of the information. However, if the extension can connect a plurality of communication terminals on the transmission line of the extension such as the ISDN basic interface, only the call originating / receiving in the extension unit can be recorded like the network side.

[0010]

In the conventional communication system in which a plurality of communication terminals are connected on the extension transmission line as described above, it is not possible to centrally manage the incoming and outgoing call records of the respective communication terminals.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a communication management apparatus capable of centrally managing call origination / reception records of a plurality of communication terminals on a transmission path. ..

[0012]

In order to solve the above-mentioned problems, the communication management device of the present invention identifies an input means for inputting call control information on a transmission line and an identification for identifying the type of the input call control information. Means, an extracting means for extracting information of a specific area included in the input call control information, and a type of the identified call control information and information of the specific area included in the extracted call control information And a storage unit for editing the stored information into a predetermined format and outputting the edited information.

The second aspect of the present invention, in particular, loops back the call control information transmitted from the terminal to the terminal on the transmission path and compares the information received at the terminal with the transmitted call control information to thereby cause a signal collision. A communication management device used in a communication system adopting an echo bit method for detecting a call, in which information folded to a terminal is input as call control information transmitted from the terminal and transmitted to the terminal. Input means for inputting the call control information as the call control information transmitted to the terminal, identification means for identifying the type of the input call control information, and a specific area included in the input call control information Of the identified call control information and storage means for storing the information of the identified area included in the extracted call control information, and the stored information in a predetermined format. And an output means for outputting to edit the mat.

[0014]

By connecting the communication management apparatus of the present invention to various communication terminals on the transmission line in the subscriber's house, the communication terminal on the transmission line inputs call control information to and from the network, and the input call is input. The type of control information is identified, information of a specific area such as a communication partner address, communication fee, communication information attribute, etc. is extracted from the call control information, the extracted information is stored, and the stored information is stored when necessary. Since the data can be output in a predetermined format, the subscriber can centrally manage the outgoing / incoming call records of a plurality of communication terminals on the transmission path.

In the second invention, the information folded to the terminal is input as the call control information transmitted from the terminal, and the call control information transmitted to the terminal is transmitted to the terminal. Since it is input as call control information
The call control information of both the up and down transmission paths can be acquired by only capturing the information of the down transmission path.
Therefore, the configuration of the connecting portion between the communication management device of the present invention and the transmission path is simplified.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a system configuration diagram of a subscriber system and a subscriber premises system of the ISDN basic interface.

As shown in FIG. 2, ISDN network (switch)
A network terminator (NT) 3 installed in a subscriber's home is connected to a subscriber line 2 from 1 and terminals 4a, 4b such as ISDN-compatible telephones, facsimiles, terminal adapters, etc. are connected to a home transmission line from NT3. ... 4h is connected.

The transmission line in the home is CCITT Recommendation I. 43
According to the rule of 0, the transmission path (uplink) from the terminal to the network,
There is a transmission line in the direction from the network to the terminal (downstream), and each uses a twisted pair cable to form a 4-wire transmission line.

On this transmission line, according to the provisions of the recommendation,
An electrical signal of the type shown in FIG. 3 is transmitted.

This electric signal is a 48-bit, 4 KHz (250 μm) signal for both the upward and downward directions of FIG. 3 (b) and FIG. 3 (a) by a ternary signal generated by a clock having a speed of 192 Kb / s.
sec) It has a frame structure of a repeating cycle.

During this frame, 64 frames are used for both upstream and downstream.
Two information (B) channels B1 and B2 having a transmission capacity of Kb / s and a signal (D) channel having a transmission capacity of 16 Kb / s are multiplexed (2B + D) and transmitted.

Further, in the downstream direction, an echo (E) channel for detecting a collision of the D channel, which is a common signal channel of a plurality of terminals, by a so-called echo bit method is multiplexed.

That is, the call control information of the D channel in the up direction is returned to the E channel in the down direction as indicated by the arrow pointing from FIG. 3 (b) to FIG. 3 (a). The terminal transmitting to the D channel detects the collision by comparing the call control information included in the D channel with the information included in the E channel. Specifically, if the call control information included in the D channel and the information included in the E channel are the same, it is determined that there is no collision, and if they are not the same, it is determined that there is a collision. To do.

In addition to this, the frame includes a frame synchronization bit F, an auxiliary synchronization bit FA, a DC balance bit L, and the like.

Here, the communication management device 5 is connected to a downlink transmission path as shown in FIG. Then, the D channel in the downlink frame is input to input the call control information from the network to the terminal, and the E channel in the downlink frame is input to input the call control information from the terminal to the network.

FIG. 1 is a diagram showing the configuration of the communication management device 5.

As shown in FIG. 1, the receiver 1 receives the ternary signal from the network terminating device (NT) in the downward direction shown in FIG. Convert to.

The 48-bit cycle frame converted into the binary signal by the receiver 1 is input to the separation circuit 3.

The separation circuit 3 separates the E and D channel bits by detecting a frame synchronization bit of 48-bit cycle and identifying the E and D channel bit positions from this bit as a starting point.

The separated E and D channels are input to serial input / output ports (SIO) 4 and 5 together with a clock.

The SIO 4 receives the serial call control information in the terminal direction from the network received through the D channel, converts it into 8-bit parallel information, and supplies it to the control unit 6.

The SIO 5 receives the serial information received on the E channel, converts it into 8-bit parallel data, and supplies it to the control unit 6.

The control unit 6 is mainly composed of a microprocessor, and controls the entire system by a control program stored in the memory 7.

The memory 7 stores SI in addition to the control program.
It has an area for storing the call control information received from O4 and O5.

On the I / O bus 8 of the control unit 6, SIO
In addition to 4, 5, an operation unit 9, an output unit 10, a clock 11, and a transmission unit 12 are connected.

The operation unit 9 is a keyboard for inputting an output request and the like, and the input key information is decoded by the control unit 6 to perform a corresponding operation.

The output unit 10 is an output means such as an LCD (liquid crystal display) or a printer, and outputs a record of incoming and outgoing calls according to the output format edited by the control unit 6. The clock 11 is a clock circuit based on LSI,
When the date and time are set to the ordinary clock and the control unit 6 reads the contents of the clock 11, the date and time data at that time is output.

Next, CCITT Recommendation Q. 921, Q.I. 9
The operation of transmitting / receiving call control information between the terminal and the network defined by No. 31 will be described.

4 to 7 show the D channel or E
It is a sequence of call control information between a terminal and a network transmitted / received on a channel.

FIG. 4 is an example of a transmission sequence. When a "call setup" signal having a structure as shown in FIG. 8 including a partner address, communication terminal attributes and the like is transmitted from the terminal to the network, the B used for communication is used. A "call setting acceptance" signal for notifying the channel is transmitted from the network, and a "call" signal is transmitted to the terminal when the terminal of the called party starts to call.

After this, when a "response" signal to which the called party responds is transmitted from the network to the terminal, communication using the B channel starts from that point onward.

On the B channel, terminal-to-terminal information such as voice, data, and image is transferred according to the attribute of the communication terminal.

When the communication on the B channel is completed, the terminal transmits a "disconnect" signal, and the network displays a reason display (normal disconnection in this case) and a "release" signal having the structure shown in FIG. 9 including the communication charge. This communication is terminated by being transmitted to the terminal, and the terminal transmitting the "release complete" signal.

On the other hand, FIG. 5 shows a sequence of disconnecting the other party, and in this case, the "disconnection" signal from the network having the structure shown in FIG. 9 includes the reason indication and the call charge.

Further, FIG. 7 shows a sequence in which the call is not completed by the terminal due to reasons such as the other terminal's busyness.

In this case, when the "call setting" signal from the terminal is transmitted to the network, the "call setting accepting" signal for notifying the B channel used for communication is transmitted from the network, and then the network becomes the partner terminal. Upon recognizing busy, the network sends a "release" signal having a structure as shown in FIG. 9 including a reason display (partner busy) to the terminal.

Furthermore, FIG. 6 shows an incoming sequence.

First, a call setup signal having a structure as shown in FIG. 8 is transmitted from the network to the terminal to start the incoming call. The following sequence is the same as the sequence opposite to the outgoing sequence.

Next, the operation of the communication management apparatus shown in FIG. 1 will be described.

FIG. 10 shows a flow chart of a schematic operation of the communication management apparatus in FIG. First, when the control unit 6 is reset by turning on the power (step a),
The initialization routine of the memory 7 is executed (step b), the initialization of the entire system including the clearing of the storage area of the call control information of the memory 7 is performed, and the state is changed to the empty state (step c).

In the empty state, the control unit 6 monitors the occurrence of a call control signal received from the SIO 4 or SIO 5 or an interrupt for inputting an output request from the operation unit 9.

When the control unit 6 accepts an interrupt, it identifies the cause of the interrupt based on the interrupt level and inputs data from the input port corresponding to the cause.

For example, in the case of an interrupt from the SIOs 4 and 5 (steps d and e), the call control information shown in FIGS. 8 and 9 is received in 1-byte units, and all the information of one call control signal is received. At the time of reception, the type of the received call control signal is identified (step f).

This is to save the memory area of the memory, so that only the call control signals necessary for the call origination / receipt recording in the present invention, such as the "call setup" signal or the "disconnect" and "release" signals, have the main information. This is because it is included.

When the received call control signal is determined to be "call setup", "disconnect", or "release", information of a prespecified area is extracted from the call control information (step g).

The specified area is, for the "call setting" signal, the transmission capability indicating the attribute of the communication information shown in FIG. 8, the source address / source subaddress, the destination address / the destination subaddress. Of course, all areas may be stored.

When the information area to be stored is extracted in step g, the area for storing the next extracted information is calculated (step h).

This is because the call control sequence shown in FIGS. 4 to 7 focuses on one terminal, and in ISDN, a plurality of terminals can simultaneously communicate with another party, so that FIG.
The call control sequence shown in FIG. 7 exists simultaneously between a plurality of terminals and the network. Therefore, FIG.
If the storage area of the call control signal is divided for each terminal identifier uniquely assigned to the terminal located in the first byte of the call control signal shown in (3), the processing becomes easy. Of course, it is also possible to sequentially store the data in an empty area of the memory, and refer to this terminal identifier when outputting and edit the outgoing / incoming call record for each terminal.

In this way, of the call control signals transmitted and received by the plurality of terminals connected to the transmission line in the subscriber's house with the network,
Information to be recorded as an outgoing / incoming call is extracted from the “call setting”, “disconnect”, and “release” signals and stored in the memory 7 (step i).

When storing the type of the call control signal and the extracted information content in the memory 7, the content of the clock 11 is read and the date and time is stored together with the information.

Next, when an output request is input from the keys of the operation unit 9 (step j), the control unit 6 reads out the incoming / outgoing call record information stored in the memory 7 (step k), and FIG.
An outgoing / incoming call record having a format as shown in FIG.
(Step m). Of course, the edited outgoing / incoming call record may be displayed on a display device such as an LCD. Alternatively, an outgoing / incoming call record may be sent to the terminal via the transmission unit 12 in response to a request from the terminal.

Therefore, the communication management device of this embodiment can centrally manage the incoming and outgoing call records of a plurality of terminals.

In the above embodiment, as an example of the outgoing / incoming call record output, the case of simply editing in order of date and time is shown. However, the control program stored in the memory 7 is used for each terminal by using the terminal identifier. It is also possible to edit each attribute of a communication terminal such as a telephone and a facsimile by utilizing the communication capability, the lower layer compatibility, or the higher layer compatibility.

In the above embodiment, the case where the means for inputting the call control signal between the terminal and the network is input from the D and E channels of the downlink transmission path of the ISDN basic interface has been described. It is also possible to provide a second receiver in the D channel of the road and input a call control signal in the network direction from the terminal from this.

Further, in the above embodiment, the case where the means for inputting the call control signal between the terminal and the network is input from the in-home transmission line via the network terminating device has been described. However, as shown in FIG. , The subscriber line from the network may be connected to the entrance to the network terminating device, and the communication channel of the call control signal may be input here. In this case, as a subscriber line transmission system of ISDN, a ping-pong transmission system, an echo canceller system, and the like have been put into practical use, and in response to this, an uplink and a downlink are matched according to the position of the call control signal channel on the subscriber line. Monitor communication channels.

In the above embodiment, the case of the ISDN basic interface has been described, but this is 23 Bs.
IS for multiplexing and transmitting a channel and one D channel
It can also be applied to the case of the DN primary interface (23 + D). Also in this case, the transmission line in the subscriber's house is a 4-line type transmission line, which can be realized by the same means as the basic interface of the above embodiment. Further, although an optical fiber is used for the subscriber line of the primary group interface, the signal channel of the subscriber line transmission line can be input through an optical-electrical converter.

Furthermore, the present invention is not limited to the basic and primary group interfaces of the ISDN of the above embodiment, but can be applied to a wideband ISDN standardized by CCITT at present. In the wideband ISDN, there is no fixed timing signal channel like the D channel of the narrowband ISDN.
By TM (asynchronous transfer mode), cells of the U plane for transferring terminal-terminal information and the cells of the C plane for transferring call control signals between the terminal and the network are transferred asynchronously on the same transmission line. The C plane may be input by a virtual path identifier (VPI), a virtual circuit identifier (VCI) or the like included as an address in the header of, and the call control information included in the C plane may be extracted.

[0069]

As described above, according to the present invention,
By inputting call control information relating to a plurality of terminals from a transmission line in a subscriber's house accommodating a plurality of terminals, identifying the type of the call control information, extracting necessary information from the call control information, It is possible to provide a communication management device capable of centrally managing communication records of a plurality of terminals connected to a home transmission path by storing, editing in a predetermined format and outputting. According to the communication management apparatus to which the present invention is applied, it is not necessary for each terminal in the subscriber's house to have a communication record, and the communication records of a plurality of terminals are edited and output in a unified format for each subscriber line. The subscriber does not need to manually calculate the communication record for each terminal as in the conventional case. Further, as compared with the call charge statement service on the network, the subscriber can retrieve the communication record at any time when necessary, so that fine control can be performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a communication management device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a communication system to which the communication management device of the present invention is applied.

FIG. 3 is a diagram showing an example of a transmission signal between a terminal on a transmission line in a subscriber's home and a network.

FIG. 4 is a diagram showing a call control sequence for originating and receiving a terminal and a network.

FIG. 5 is a diagram showing a call control sequence for originating and receiving a terminal and a network.

FIG. 6 is a diagram showing a call control sequence for originating / receiving a terminal and a network.

FIG. 7 is a diagram showing a call control sequence for originating and receiving a terminal and a network.

FIG. 8 is a diagram showing an example of a call control signal.

FIG. 9 is a diagram showing an example of a call control signal.

FIG. 10 is a flowchart showing an operation of the communication management device of the exemplary embodiment of the present invention.

FIG. 11 is a diagram showing an example of an output format output from the communication management device according to the embodiment of the present invention.

FIG. 12 is a system configuration diagram when the present invention is applied to a subscriber line.

[Explanation of symbols]

1 ... Receiver, 2 ... Reception pulse transformer, 3 ... Separation circuit, 4 ... D channel serial input / output port, 5 ... E channel serial input / output port, 6 ... Control unit, 7 ... Memory,
8 ... I / O bus, 9 ... Operation part, 10 ... Output part, 11 ... Clock, 12 ... Transmission part, 13 ... Driver, 14 ... Transmission pulse transformer.

Claims (2)

[Claims] 1. A communication management device used in a communication system in which a plurality of terminals are connected on a transmission path, the input means being connected to the transmission path, for inputting call control information on the transmission path, and the input means. Identification means for identifying the type of the input call control information, extraction means for extracting information of a specific area included in the call control information input by the input means, and call control information identified by the identification means And storage means for storing information on a specific area included in the call control information extracted by the extraction means, and output means for editing the information stored by the storage means in a predetermined format and outputting the information. A communication management device comprising. 2. A plurality of terminals are connected on a transmission line, call control information transmitted from the terminals on the transmission line is returned to the terminal, and the information received at the terminal is compared with the transmitted call control information. In a communication management device used in a communication system adopting an echo bit method for detecting a signal collision in, a call control information transmitted from the terminal, the information being connected to the transmission path and folded to the terminal Input means for inputting the call control information sent to the terminal as the call control information sent to the terminal, and an identification for identifying the type of the call control information input by the input means. Means, an extracting means for extracting information of a specific area included in the call control information input by the input means, a type of the call control information identified by the identifying means, and The information processing apparatus comprises: storage means for storing information on a specific area included in the call control information extracted by the extraction means; and output means for editing the information stored by the storage means in a predetermined format and outputting the information. A communication management device characterized by.