JPH10262119A - Multiplex communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize divided call control and to reduce a dial waiting time required for call control by providing a memory part which stores incoming call number information for executing divided call control, identifying informa tion at every call and number digit number information and dividing call control information stored on the memory part by means of a call control part and storing call control information or storing divided call control information. SOLUTION: A multiplex control part 11 instructs an effective call control processing by multiplex information to a call control part 13. The call control part 13 sets and refers to dial information concerning the call control of a Dp channel as against a dial information storage memory part 14, stores divided dial information in a storage memory part 14 at the divided call control and executes control in order to use it for a number check processing. Thus, when call control is executed by the Dp channel, not only a conventional dispatch call control system but also a division call control system can be coped with, therefore a time required for overall call control is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiplex communication apparatus using a multiplexing system by circuit switching using a common channel signaling system, and more particularly to a multiplex communication apparatus capable of performing divided call control.

[0002]

2. Description of the Related Art Hitherto, a multiplex communication apparatus for performing multiplexing by circuit switching using a common channel signal system has used a collective call control system. In this method, a destination number at the time of making a call is stored up to an arbitrary designated number of digits, and a call is made by a call setting message as a called number.

In this method, the time required for storing an arbitrary number of digits of the destination number becomes a loss time required for starting communication as it is. A method of making the loss time as short as possible is a divided call control method.

[0004]

The above-mentioned divided call control method has not been realized in a multiplex communication apparatus, and a method for realizing the method has been required.

[0005] The present invention has been made to solve such a conventional problem, and has as its object to provide a multiplex communication apparatus capable of implementing divided call control.

[0006]

According to a first aspect of the present invention, there is provided a multiplex communication apparatus for transmitting a plurality of data or the like using a multiplexing method, wherein information relating to call control can be stored and referred to. It is characterized by comprising a memory unit and a call control unit that controls division of the call control information stored in the memory unit or accumulation of the divided call control information.

According to a second aspect of the present invention, in the first aspect of the present invention, the memory section is divided into pieces of called number information for performing call control, identification information for each call, and the number of digits. Each of the information is stored.

According to the present invention, there is provided a memory unit for storing called number information for performing divided call control, identification information for each call, and number digit number information thereof, and the call control unit stores the memory unit. By dividing the call control information stored in the call control program, or by storing the divided call control information, the divided call control can be realized, and the dial waiting time required for the call control can be reduced.

[0009]

FIG. 1 is a schematic diagram of a multiplex communication system to which a multiplex communication device according to the present invention is applied, wherein a plurality of data terminal devices (DTE) 1 and a plurality of voice terminal devices 2 are connected to a cable 3. The multiplex communication device 4 is accommodated through the communication device. The multiplex communication device 4 is a dedicated line 5 having a large transmission capacity.
Is connected to

[0010] Data terminal device 1 and voice terminal device 2
Transmits data and voice information to the multiplex communication device 4 connected to the dedicated line 5 when transmitting data and voice information to the data terminal device or voice terminal device on the other side.

[0011] The multiplex communication apparatus 4 multiplexes data and voice information by multiplex information stored in the multiplex communication apparatus 4 in accordance with the communication speed of the dedicated line 5 and call control information for efficiently controlling the multiplex information. Dedicated line 5 with fixed or dynamic connection
To communicate.

In this multiplex communication system, the same line is divided into a fixed connection band and a dynamic connection band, and the fixed connection is set and fixed in advance by the fixed connection data. The dynamic connection band is dynamically set (in response to a connection request), and the call control data for the dynamic connection is transmitted via the Dp channel.

FIG. 2 is a block diagram showing the configuration of the multiplex communication apparatus according to the present invention. The same parts as those shown in FIG. 1 are denoted by the same reference numerals, and detailed description of those parts will be omitted.
The multiplex communication device 4 includes a multiplex control unit 11, a memory unit 12, a call control unit 13, a dial information storage memory unit 14,
A DTE interface (i / f) unit 15 and a voice interface (i / f) unit 16 are provided.

The multiplexing control unit 11 registers and reads out data, voice information and communication speed information from the memory unit 12. The multiplexing control unit 11 performs multiplexing processing based on the communication speed information, instructs the call control unit 13 to perform efficient call control processing based on the multiplexed information, and performs communication control on the dedicated line 5. .

The call control unit 13 sets and refers to the dial information relating to the Dp channel call control in the dial information storage memory unit 14, and stores the divided dial information in the memory unit 14 during the divided call control. Control so that it can be used for number check processing.

The data multiplexed by the multiplexing control unit 11 is transmitted and received by the multiplexed data transmission unit 5a of the dedicated line 5. The call control information generated by the call control unit 13 performs efficient multiplexing control with the partner device by the Dp channel transmission unit 5b.

Next, the call control sequence in the multiplex communication apparatus will be described with reference to the sequence diagrams shown in FIGS. First, the operations of the divided call and the divided call will be described with reference to the divided call sequence diagram shown in FIG. 3 and the divided call sequence diagram shown in FIG.

When a call start (SS = ON) is issued from the PBX (private branch exchange) on the calling side to the EO section (terminal station), the EO is issued.
The unit sends a call setting Setup (“0”) message to the C / W low-speed unit.

When the EO unit on the calling side sends out the call setup Setup, it sends an acknowledgment signal to the PBX. This confirmation signal is a wink pulse at the time of wink start.
Next, the PBX sends the first dial information to the EO unit.

When the call setting Setup reaches the C / W low speed part on the called side via the relay / control unit, the C / W low speed part on the called side returns a call setting confirmation Setup-Ack message and dials. Request additional information such as information. This call setup confirmation Setup
-Ack reaches the calling side EO section via the relay / control section and the calling side C / W low speed section.

Thereafter, the next dial information is sent from the calling PBX to the EO unit. When the calling EO unit receives the call setup confirmation Setup-Ack, the dial information and the dial number already received are received. The information to the user information
) Is sent to the called side via the C / W low-speed unit and the relay / control unit.

In the same manner, when the dial information is sent, the EO unit on the calling side sends it out as user information Info (), and when the dial information is sent, it sends the user information Ifo.
When the dial information, which is the last digit, is sent, it is confirmed in the expansion table that it is the last digit, and then transmitted as user information Info (: END).

On the called side, call setup Setup, user information Inf
o (), user information Info (), user information Info
(), When the user information Info (: END) is received by the C / W low-speed unit, the port is specified by checking the called number (special number). Call setup Setup and user information Info (
), User information Info (), user information Info (: EN
D) are sent in order.

Upon receiving the call setting Setup, the EO unit on the called side sends a call start (SR = ON) to the PBX on the called side. The PBX sends an acknowledgment signal to the EO unit upon receiving the incoming call activation. This confirmation signal is a wink pulse at the time of wink start. Next, the EO unit sequentially sends dial information to the PBX.

The C / W low-speed part on the called side receives user information
When (: END) is received, a call setting reception Callproc message for notifying that the reception of all the call setting information has been completed is returned. When the EO section on the called side has finished sending the dial information to the PBX, it sends out a Call Allert message to notify the calling party that the called party is being called.

When the called party answers, the called PBX sends a response signal (SS = ON) to the EO unit. EO
The unit receives the response signal and sends a response Connect message to notify the calling party that the called party has answered.

The EO unit on the calling side performs call setting reception Callproc.
, A call Allert and a response Connect, the response signal (SR = O) to the calling PBX.
N). The relay / control unit on the calling side responds C
When receiving the "onnect", a response confirmation Connect-Ack message is returned to the EO unit on the called side. When the channel is thus connected, communication between the calling party and the called party starts.

Next, the channels connected in this way are
FIG. 5 shows a disconnection sequence when disconnecting from the own side.
This will be described with reference to the sequence diagram shown in FIG. First, the disconnection signal (SS = OF) is sent from the PBX on the disconnection side to the EO section.
When F) is sent, the EO unit sends a disconnect Disc message indicating a call release request to the other party.

Upon receiving a ReleaseRelease message indicating a call number release request from the other party receiving the message, the EO unit issues a disconnection response (SR = OFF) to the PBX and issues a reception permission to the C / W low speed unit. . Further, upon receiving the release Release message from the other party, the relay / control unit on the disconnecting side returns a release completion Rel-Comp message indicating a call number release completion notification to the other party. This completes the call release.

FIG. 6 is a disconnection sequence diagram when disconnecting from the network side. First, when a disconnection message indicating a call release request is received from the network, the EO unit receives the message and issues a disconnection signal (SR = OFF) to the PBX.

When the relay / control unit receives the disconnection Disc message, it returns a release Release message to the network. Then, upon receiving the message of the release completion Rel-Comp from the network, the relay / control unit sends a release Release message to the EO unit. In response to this, the EO unit issues a disconnection response (SS = OFF) to the PBX, and issues acceptance to the C / W low-speed unit. This completes the call release.

[0032]

According to the present invention, when performing call control using the Dp channel, the present invention is not limited to the conventional collective call control method.
It is possible to cope with the split call control method, efficiently reduce the loss time when storing and transmitting all dial information during batch call control, and reduce the time required for the entire call control.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a multiplex communication system to which a multiplex communication device according to the present invention is applied.

FIG. 2 is a block diagram showing a configuration of a multiplex communication device according to the present invention.

FIG. 3 is a split call sequence diagram.

FIG. 4 is a split call sequence diagram.

FIG. 5 is a disconnection sequence diagram from the own side.

FIG. 6 is a disconnection sequence diagram from the network side.

[Explanation of symbols]

 Reference Signs List 1 data terminal device (DTE) 2 voice terminal device 3 cable 4 multiplex communication device 5 dedicated line 5a multiplexed data transmission unit 5b Dp channel transmission unit 11 multiplex control unit 12 memory unit 13 call control unit 14 dial information storage memory unit 15 DTE interface section 16 Voice interface section

Continued on the front page (72) Isao Wada, Inventor 94, Kojiyama-shi, Fukushima Prefecture

Claims (2)

[Claims] 1. A multiplex communication apparatus for transmitting a plurality of data or the like using a multiplexing method, comprising: a memory unit capable of storing and referring to information related to call control; and a division of call control information stored in the memory unit. Or a call control unit for controlling accumulation of divided call control information. 2. The multiplexing apparatus according to claim 1, wherein said memory unit stores called number information for performing call control in a divided manner, identification information for each call, and number digit number information. Communication device.