JPH0614130A - Multi-medium multiplexing communication system - Google Patents

Abstract

PURPOSE:To effectively utilize a private line whose line speed is constant. CONSTITUTION:A subscriber exchange 5 and a time division multiplexer 10 are connected by 12 trunks as telephone exclusive analog trunks 6 according to a maximum channel number set by setting A or B, connected by 6 trunks as facsimile exclusive analog trunks 7 and connected by 6 trunks as data exclusive analog trunks 8. In the case of the setting A, a busy signal representing non-availability of three trunks among 6 trunks of the facsimile exclusive analog trunks 7 and the data exclusive analog trunks 8 is sent from the time division multiplexer 10 to the subscriber exchange 5 through the trunk signal line 9, and in the case of the setting B, a busy signal representing non-availability of six-trunks among the 12 trunks of the telephone exclusive analog trunks 6 is sent from the time division multiplexer 10 to the subscriber exchange 5 through the trunk signal line 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a telephone line, a facsimile terminal, a data terminal, a modem, a private branch exchange, and a time division multiplexer, renting a line from a telecommunications carrier or using its own line. The present invention relates to a multimedia multiplexing communication method for an in-house network.

[0002]

2. Description of the Related Art Conventionally, a company that borrows a line from a telecommunications carrier or uses its own line and is composed of a telephone, a facsimile terminal, a data terminal, a modem, a private branch exchange, and a time division multiplexer. In the internal network,
The multiplexing setting on the line is fixedly set in advance, but is set depending on the call situation from the telephone, the facsimile terminal, or the data terminal via the modem.

[0003]

However, in an international corporate network, the traffic volume of telephone, facsimile, and data fluctuates due to the time difference between the grounds. Therefore, when the line setting is fixed, It is necessary to have the line capacity according to the maximum value of each traffic volume of telephone, facsimile, and data. Also, if the line setting method according to the calling situation of the telephone, facsimile, and data is used, the facsimile and data In that case, there is a problem that the line is used for a long time and it is difficult to make a call.

An object of the present invention is to effectively use a dedicated line having a constant line speed.

[0005]

In order to achieve the above object, the present invention is to connect a data terminal through a telephone, a facsimile terminal, and a modem to an input terminal of a private branch exchange,
A telephone-only analog trunk, a facsimile-only analog trunk, and a data-only analog trunk are connected between the output end of the private branch exchange and the input end of the time division multiplexer, and a busy signal is sent from the time division multiplexer to the private branch exchange. A trunk signal line for transmitting the signal is provided, and a dedicated line is connected to the output end of the time division multiplexer.

[0006]

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

FIG. 1 is a block diagram of an embodiment of the present invention, in which a telephone 1, a facsimile terminal 2, and a data terminal 3 are connected to an input end of a home exchange 5 via a modem 4 to provide a home exchange. An analog trunk 6 for telephone, an analog trunk 7 for facsimile, and an analog trunk 8 for data are connected between the output end of 5 and the input end of the time-division multiplexer 10 so that the time-division multiplexer 10 can be installed in the home. A trunk signal line 9 for transmitting a busy signal to the exchange 5 is provided, and the dedicated line 1 is provided at the output end of the time division multiplexer 10.
1 is connected.

In FIG. 1, the line speed of the leased line 11 is constant, and the line setting of the time division multiplexer 10 is set as the setting A by the telephone 12 according to the fluctuation of the traffic volume.
A channel, a facsimile 3 channel, and a data 3 channel are set, and as the setting B, a telephone 6 channel, a facsimile 6 channel, and a data 6 channel are set, and the setting A or the setting B is switched.

The private branch exchange 5 and the time division multiplexer 1
Between 0, according to the maximum number of channels of setting A or setting B, 12 trunks are connected as telephone dedicated analog trunks 6, 6 trunks are connected as facsimile dedicated analog trunks 7, and 6 are used as data dedicated analog trunks 8. Connected by trunk. In the case of setting A, out of the 6 trunks of the facsimile dedicated analog trunk 7 and the data dedicated analog trunk 8, 3 trunks are busy signals indicating that they cannot be used.
The signal is transmitted from the time division multiplexer 10 to the private branch exchange 5 through the trunk signal line 9, and in the case of setting B, a busy signal indicating that 6 trunks out of 12 trunks for telephone analog 6 are unusable. , Through the trunk signal line 9 to be transmitted from the time division multiplexer 10 to the private branch exchange 5.

In the case of setting A, even if the telephone trunk 6 is not all used and the dedicated circuit 11 has a free capacity, even if the facsimile terminal 2 or the data terminal 3 makes a fourth call. Since each of the fourth trunks is busy, the private branch exchange 5 returns a busy tone to each terminal, and the dedicated line 11 is not dedicated, and the free capacity of the dedicated line 11 should be used for telephone. You can In the case of setting B, for telephone use,
Only 6 channels are set on the dedicated line 11, and the rest can be used for data and facsimile respectively.

Therefore, in the international corporate network, the setting A is set to a working time zone between the two grounds where the traffic volume of the telephone is large, and the setting B is set to the other working hours. Telephone, fax,
Also, the line can be used according to the fluctuation of the data traffic amount.

In the present embodiment, there are two line settings, setting A and setting B, but it is possible to set several more finely according to the fluctuation of each traffic volume. Further, although the present embodiment is the case of the analog trunk, in the case of the digital trunk, the time slots on the digital trunk are similarly set to the required maximum number of telephones,
This can be done by setting a dedicated channel for facsimile and data.

[0013]

As described above, according to the present invention,
A dedicated line with a constant line speed is used according to the fluctuation of the traffic volume of telephone, facsimile, and data.
The effect that it can be used effectively is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Telephone 2 Facsimile terminal 3 Data terminal 4 Modem 5 Home switch 6 Telephone analog analog trunk 7 Facsimile analog trunk 8 Data dedicated analog trunk 9 Trunk signal line 10 Time division multiplexer 11 Private line

Claims (2)

[Claims] 1. A telephone terminal, a facsimile terminal, and a data terminal are connected to an input terminal of a private branch exchange via a modem, and a telephone is exclusively provided between an output terminal of the private branch exchange and an input terminal of a time division multiplexer. An analog trunk, a facsimile-only analog trunk, and a data-only analog trunk are connected, and a trunk signal line for sending a busy signal from the time-division multiplexer to the private branch exchange is provided, and it is dedicated to the output end of the time-division multiplexer. A multimedia multiplex communication system characterized by connecting lines. 2. The multimedia multiplex communication system according to claim 1, wherein the telephone-only analog trunk comprises 12 trunks, the facsimile-only analog trunk comprises 6 trunks, and the data-only analog trunk comprises 6 trunks.