JPH02186738A - Network controller - Google Patents

Abstract

PURPOSE:To attain communication even if a subscriber terminal equipment does not have the transmission/reception function of a network joining address or the like by transmitting and receiving the network joining address and call connection control information between a network controller and a packet exchange. CONSTITUTION:When the user of the network controller 9 inputs the network joining address of subscriber terminal equipments 7 and 8 and a synchronization type to be used from a terminal information input part 5, they are stored in a terminal information memory part 6. At the time of a call from the controller 9, a call connection control part 3 transmits a call request and network joining address information to the packet exchange 1 in accordance with the synchronization type by information of the memory part 6. The exchange 1 transmits connection complement information to the controller 9 when call connection completes. The control part 3 switches a communication channel by connection complement information. When there is an incoming call to the controller 9, the control part 3 which has received the connection request or the like checks information of the memory part 6 and the state of the equipment 7. When they are normal, a connection request response is returned and the communication channel is switched.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a packet switching network, and more particularly to a network control device having a function of controlling call connections.

[Conventional technology]

Conventionally, call connection control in a packet switching network has been performed between subscriber terminal equipment and a packet switch, and the subscriber terminal equipment has been required to have the ability to transmit and receive network joining addresses and connection control information.

[Problem to be solved by the invention]

Therefore, if the subscriber terminal equipment connected to the packet switching network cannot send or receive call control information and network joining address to the packet switch, the packet switch cannot recognize the subscriber and cannot perform call connection control. do not have.

[Means to solve the problem]

The network control device of the present invention is connected to a subscriber line between a subscriber terminal device and a packet switch, and has a function of transmitting and receiving network joining address and call connection control information,
This is a configuration for controlling call connection of the subscriber line.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 1, which shows an embodiment of the present invention, the user of the network control device 9 inputs information to the subscriber terminal equipment 7 from the terminal information input section 5.
and the network joining address of the subscriber terminal equipment 8 and the synchronization type to be used (start-stop).

The information entered by nine people (selected from synchronization and flag synchronization) is stored in the terminal information memory section 6. When a call is made from the network control device 9, the call connection control unit 3 sends a call request and network joining address information to the packet switch 1 based on the information in the terminal information memory unit 6 according to the synchronization type.

When the call connection is completed, the packet switch 1 sends connection completion information to the network control device 9. The call connection control unit 3 sends a switching signal 4 to the switching device 2 based on the connection completion information,
Switch the communication path. When a call arrives at the network control device 9, the call connection control section 3 that has received the connection request and the network joining address information checks the information in the terminal information memory section 6 and the status of the subscriber terminal equipment 7, and determines whether it is normal. If so, a connection request response is returned, a switching signal 4 is sent to the switching device 2, and the communication path is switched.

〔Effect of the invention〕

As explained above, according to the present invention, the subscriber terminal equipment has a function of transmitting and receiving the network joining address and call connection control information by transmitting and receiving the network joining address and call connection control information between the network control device and the packet switch. It is possible to communicate with any subscriber in the packet-switched network even if the subscriber does not have a network.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. 1...Packet switch, 2...Switching device, 3...
Call connection control section, 5... terminal information input section, 6... terminal information memory section, 7... subscriber terminal equipment, 8... subscriber terminal equipment, 9... network control device.

Claims (1)

[Claims] It is connected to a subscriber line between a subscriber terminal device and a packet switch, has a function of transmitting and receiving network joining address and call connection control information, and performs call connection control of the subscriber line. Network control device.