JPH088903A - Isdn terminal equipment and network management equipment - Google Patents

Abstract

PURPOSE:To allow a terminal equipment and a host to take timing for call control information sent/received by the terminal equipment and to realize transfer of the call control information with a small memory capacity. CONSTITUTION:A network management equipment 12 makes a request of start of call control information transfer connected by an ISD network by the transmission of a packet call. The ISDN terminal equipment 11 records call control information sent/received by a call control section 113 to a call control information storage section 112 after the reception of the request. Then a packet processing section 114 sends call control information in the call control information storage section 112 to the network management equipment 12 as a data packet. The memory management equipment 12 acquires and manages the call control information of an ISDN terminal equipment at a remote location by recording the data packet received by the packet processing section 124 to the remote call control information storage section 122.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ISDN terminal used in an ISDN line and a network management device for managing the ISDN terminal at a remote place.

[0002]

2. Description of the Related Art FIG. 3 shows an ISDN terminal (hereinafter referred to as a terminal) having a conventional call control information recording means and a network management device having a means for acquiring and recording the call control information of a remote terminal. Hereinafter, referred to as a host) is a block diagram showing a schematic configuration.

In FIG. 3, reference numeral 21 is a terminal, and a system control unit 211 for controlling and managing the entire terminal 21,
The call control information storage unit 212 that records the call control information transmitted and received by the terminal 21, the call control unit 213 that controls the sending and receiving of the ISDN, and the call control information storage unit 212 when transfer of the call control information is requested. The call control information transfer unit 214 for transferring the call control information recorded in (1) to the host 22 through the ISDN.

The host 22 has a system control unit 221 for controlling and managing the host 22 as a whole and a remote call control information storage unit 2 for recording the transferred call control information of the remote terminal 21.
22 and a call control unit 223 for controlling transmission / reception of ISDN
And a request for transfer of call control information, and a remote call control information transfer processing unit 224 for recording the transferred call control information in the remote call control information storage unit 222, and a user of the host 22 calls a remote terminal 21 When it is desired to manage control information, the man-machine control unit 22 that notifies the system control unit 221 of the request.
5 is provided.

Next, a call control information management method for a remote terminal according to the above conventional example will be described with reference to a sequence diagram shown in FIG.

First, the monitored terminal A and the non-monitored terminal B record the call control information transmitted and received by their respective call control units 213 in the call control information storage unit 212 (sequences 31 and 32). .

Next, the user of the host 22 uses the man-machine control unit 225 to request the system control unit 221 to obtain the call control information of the terminal A at the remote place. At this time, the system control unit 221 sends the call to the terminal A to the call control unit 223.
Instruct. Along with this, the calling process is executed through the call control unit 223 line of the host 22 (sequence 33). When the call control unit 213 of the terminal A receives the incoming call,
Terminal A responds to the call from host 22 (sequence 3
4), connection by ISDN line is completed.

After the ISDN line is connected, the system control unit 2
21 issues an instruction to the remote call control information transfer processing unit 224 to acquire the call control information of the connected terminal A. As a result, the remote call control information transfer processing unit 224 requests to transfer the call control information recorded by the terminal A through the ISDN line (sequence 35).

When the call control unit 212 of the terminal A receives the call control information transfer request, the system control unit 211 instructs the call control information transfer unit 214 to transfer the call control information. Along with this, the call control information transfer unit 214 transfers the call control information recorded in the call control information storage unit 212 to the host 22 through the ISDN line (sequence 35). When the host 22 receives this, the remote call control information transfer processing unit 2
24 regards the information to be received as the call setting information of the terminal A and records it in the remote call control information storage unit 222.

At this time, the format of the call control information stored in the call control information storage section 212 and the information transferred through the ISDN line can be analyzed by the system control section 221 and the remote call control information transfer processing section 224. It must have a structure.

The call control information of the terminal A transferred to the remote call control information storage unit 222 according to the above procedure is stored in the host 22.
The user is referred to using the man-machine control unit 225.

In this way, the host can acquire and manage the call control information transmitted and received by the remote terminal.

[0013]

However, the above-mentioned conventional terminals and hosts have the following problems.

First, on the terminal side, all the information cannot be recorded because the memory required for recording the call control information is limited. Therefore, when the data is recorded up to the upper limit of the memory, it is necessary to discard old information or not store new information. Therefore, if the amount of information desired to be recorded is increased, a large amount of memory is required accordingly.

On the host side, in order to judge whether the call control information recorded by the terminal to be managed is originally necessary information, a procedure for first clearing all the call control information on the terminal side in advance, It is necessary to provide a means and a procedure for negotiating the timing suitable for transferring the call control information between the terminal and the host.

The present invention solves such a conventional problem, and the call control information transmitted and received by the terminal is less required for the terminal without performing an operation for timing adjustment between the terminal and the host. An object of the present invention is to provide an ISDN terminal and a network management device thereof that realize transfer of call control information with a memory capacity.

[0017]

In order to achieve the above object, the present invention provides, on the terminal side, means for accepting a call control information transfer request from a host when a packet call is made, and a host. When a packet call is connected to the device, a means for describing the transmitted and received call control information in the data part of the data packet and transmitting it is provided, and the host side requests the terminal to transfer the call control information by a bucket call. And a means for recording the data portion of the data packet received from the terminal as call control information.

[0018]

According to the present invention, when the user of the host wants to obtain the call control information of the terminal at the remote place, the present invention transmits the packet to the terminal by the packet. At this time, a call control data transfer request is described in the call user data. After completing the call connection by receiving the packet, the terminal describes the transmitted and received call control information in the data part of the data packet and transmits the data. The host receiving this data packet
The data part of the data packet is recorded as the call control information of the terminal. As a result, the call control information of the remote terminal can be managed by the host in real time.

[0019]

1 is a block diagram showing a schematic configuration of a terminal having a recording means for call control information according to the present invention and a host having a means for acquiring and recording the call control information of a remote terminal.

In FIG. 1, reference numeral 11 denotes a terminal (ISDN terminal), which is a system control unit 111 for controlling and managing the entire terminal, and a call control information storage for recording call control information transmitted and received by the terminal 11. Part 112 and ISDN
A call control unit 113 that controls outgoing and incoming calls to and from a call control information storage unit 112 performs information transmission / reception control of packets and transfer of call control information to a data unit of a data packet. By writing and sending,
A packet processing unit (call control information transfer unit) 114 for transferring to the host 12 via ISDN is provided.

The host (network management device) 12 is
A system control unit 121 that controls and manages the entire host,
A remote call control information storage unit 122 that records the call control information received by a terminal at a remote place, a call control unit 123 that controls transmission / reception with ISDN, a call control information transfer request is described in an outgoing packet, and a packet is written. A packet processing unit (remote call control information transfer processing unit) 124 that regards the data portion of a data packet received during call connection as call control information and records it in the remote call control information storage unit 122, and a user of the host 12 remotely When the call control information of the local terminal is desired to be managed, the man-machine control unit 125 that notifies the system control unit 121 of the request is provided.

Next, the operation of the above embodiment will be described with reference to the sequence diagram shown in FIG.

First, the user of the host uses the man-machine control unit 125 to request the system control unit 121 to acquire the call control information of the remote terminal A. At this time, the system control unit 121 instructs the call control unit 123 to make a call to the terminal A. The call control unit 123 instructs the packet processing unit 124 to make an outgoing call as a packet call. In this case, the packet processing unit 124 describes a call control information transfer request in the call user data of the outgoing packet. Further, when the packet processing unit 124 notifies the call control unit 123 that the generation of the outgoing packet has been completed, the call control unit 123 transmits the outgoing packet to the ISDN (sequence 41).

Next, in terminal A, the outgoing packet received by the call control unit 113 is delivered to the packet processing unit 114 for analysis. At this time, if the call user data describes a call control information transfer request, the packet processing unit 114 notifies the system control unit 111 of that fact, and at the same time generates a response packet, which is then called by the call control unit. Notify 113. As a result, the call control unit 113 sends the response packet to the IS.
A packet call for call control information transfer is established by transmitting to the DN network (sequence 42).

When the system control unit 111 notifies the call control unit 113 that the call control information transfer request has been received, the call control unit 113 thereafter records the received call control information in the call control information storage unit 112 ( Sequence 43) indicates that the call control information is transmitted and received to and from the system control unit 111. When the system control unit 111 receives this notification, it instructs the packet processing unit 114 to transfer the call control information. Receiving it, the packet processing unit 114 describes the information recorded in the call control information storage unit 112 in the data portion of the data packet for the connected packet call and transmits it (sequences 44 to 46).

Upon receiving this, the host 12 uses the data portion of the data packet received by the packet processing unit 124 as the call control information of the terminal A and the remote call control information storage unit 12
Record in 2.

At this time, the format of the call control information recorded in the call control information storage unit 112 and the information when the packet processing unit 114 describes the data packet has a structure that can be analyzed by the packet processing unit 124. .

The call control information of the remote terminal A recorded in the remote call control information storage unit 122 by the above procedure is referred to by the user of the host 12 using the man-machine control unit 125.

In this way, the host 12 can acquire and manage the call control information transmitted and received by the terminal A at the remote location.

[0030]

As is apparent from the above embodiment, the present invention is such that a terminal and a host are connected in advance by a packet call,
By transmitting the call control information transmitted and received by the terminal thereafter as a data packet, it is possible to notify the host of the call control information of the terminal in real time. This allows
The terminal has an advantage that it does not need to prepare a memory for recording a plurality of transmitted / received call control information, but only needs to prepare a memory capable of recording at most one call control information.

Further, according to the present invention, in the host, the call control information can be transmitted at a timing to be managed, and thereafter the call control information can be acquired in real time.
Procedure to clear all call control information on the terminal side first,
This has the advantage that there is no need to provide means or procedure for negotiating the timing suitable for transferring the call control information between the terminal and the host.

Thus, it is possible to provide a terminal and a host that are memory-saving and that make it easy for a user to obtain call control information of a remote terminal.

Further, according to the present invention, by using the packet multiplexing function of ISDN, the network management device can manage the call control information of a plurality of ISDN terminals.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a terminal and a host according to an embodiment of the present invention.

FIG. 2 is a sequence diagram showing a procedure of communication between a terminal and a host in this embodiment.

FIG. 3 is a block diagram showing a schematic configuration of a conventional terminal and host.

FIG. 4 is a sequence diagram showing a conventional communication procedure between a terminal and a host.

[Explanation of symbols]

 11 terminal (ISDN terminal) 12 host (network management device) 111 system control unit 112 call control information storage unit 113 call control unit 114 packet processing unit (call control information transfer unit) 121 system control unit 122 remote call control information storage unit 123 Call control unit 124 Packet processing unit (remote call control information transfer processing unit) 125 Man-machine control unit

Claims (2)

[Claims] 1. A reception unit that receives a transfer request of call control information by a packet call from a network management device, and a transmission that transmits the call control information transmitted and received after the reception as a data packet to the network management device. An ISDN terminal having means and transferring the call setting information to the network management device in real time through the ISDN line by the reception means and the transmission means. 2. A transfer request means for requesting transfer of call control information to the ISDN terminal according to claim 1 by a packet call, and a recording means for recording call setting information in a data packet received from the ISDN terminal. A network management apparatus having the transfer requesting means and the recording means for managing call control information of an ISDN terminal at a remote place in real time.