JPS63280596A - Key telephone system - Google Patents

Abstract

PURPOSE:To broadcast a message of same content at the same time from many speakers by sending a prescribed simultaneous call signal, receiving the simultaneous call signal via a private line and connecting the private line and a prescribed speaker. CONSTITUTION:Main body equipments 10a, 10b provided with plural key telephone sets T1-Tm and >=1 speakers S1-Si are connected via a private line L1 and the main body equipment 10a is connected to other main body equipment 10c via a private line L2 and connected to a main body equipment 10j via a private line Ln at the same time. Then a prescribed simultaneous call signal is sent to the private lines L1-Ln and the simultaneous call signal coming from the private line is received to connect the private line and the prescribed speaker. Thus, the plural speakers are called at the same time via plural private lines and important message wide notice is ensured.

Description

[Detailed description of the invention] [Industrial application field] INDUSTRIAL APPLICATION This invention is utilized for the key telephone device connected to a leased line.

The present invention relates to a button telephone device.

In particular, in a plurality of key telephone devices connected to each other via a plurality of leased lines, a predetermined dial signal is issued from one key telephone to simultaneously call a plurality of public address devices via the leased line. This invention relates to a button telephone device that can broadcast messages with the same content.

〔overview〕

The present invention provides a button telephone H1 each equipped with a plurality of key telephones and one or more loudspeaker devices, each connected to another key telephone device via a dedicated line, in which a predetermined simultaneous paging signal is transmitted. By transmitting a message, receiving this paging signal via a dedicated line, and connecting the dedicated line to a designated public address system, it is possible to simultaneously broadcast a message with the same content from multiple public address systems. [Prior Art] With conventional button telephone devices, it is not possible to simultaneously call the public address systems of multiple callee button telephone devices from one calling party button telephone device via multiple dedicated lines. .

[Problem that the invention seeks to solve]

For this reason, there is a drawback that the same message cannot be simultaneously broadcast to an unspecified number of public address systems as in a private address system.

SUMMARY OF THE INVENTION An object of the present invention is to solve this drawback and provide a button telephone device that can simultaneously broadcast messages of the same content from a number of predetermined loudspeaker devices using a single button telephone.

[Means for solving problems]

The present invention includes a main unit, a plurality of key telephones, and one or more loudspeaker devices connected to the main unit, and the main unit includes a dedicated line interface unit that accommodates a dedicated line, and a dedicated line interface section for accommodating a dedicated line, and a dedicated line interface section for accommodating a dedicated line, and A telephone interface unit that accommodates a connection line, a communication path switch that interconnects the communication path of this telephone interface unit and interconnects this communication path and a communication path of the leased line interface unit, and this communication path switch. a control section for controlling the telephone, and the control section includes a communication path of the telephone and the communication path of the telephone to the communication path switch in order to simultaneously call from at least one of the key telephones to the one or more of the loudspeaker devices. In a key telephone device equipped with a paging connection means for connecting to a public address system, the paging connection means includes means for transmitting a paging signal to a dedicated line, and means for transmitting a paging signal arriving via the dedicated line. It is characterized in that it includes means for connecting the dedicated line and a public address system when receiving the signal.

[Effect]

The button telephone device of the present invention includes: a telephone interface section that accommodates a connection line of a button telephone; a leased line interface section that accommodates a plurality of leased lines; a call path switch that connects the button telephone and the leased line; It includes a control section that controls the telephone interface section, the private line interface section, and the call path switch, and one or more loudspeakers for simultaneous paging.

Therefore, when the control section receives a dial signal, which is a predetermined simultaneous ringing signal, from a button telephone, it simultaneously sends the dial signal to the plurality of dedicated lines, and sends the dial signal to the plurality of dedicated lines simultaneously. The device detects and judges the above-mentioned dial signals and connects these leased lines and predetermined loudspeaker equipment using a communication path switch. It can be called via .

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of an embodiment of the present invention, and FIG. 2 shows a system diagram.

In this embodiment, the multi-button telephones TI to T,
and one or more loudspeaker devices S, ~S1.
0a and 10b are connected via a dedicated line Ll.
0 Also, the main unit 10a has a dedicated 'aL' as shown in FIG.
! It is connected to another main unit 10c via a dedicated IL, and similarly connected to the main unit 10j via a dedicated IL.

As shown in FIG. 1, the main unit 10a includes a dedicated line interface unit 11 that accommodates a dedicated line, and a key telephone T.
A telephone interface unit 13 that accommodates an I-T connection line and a dedicated line interface unit 1 that connects the communication path of this telephone interface unit 13 to each other.
a communication path switch 12 that interconnects the communication path 1;
A control section 14 that controls the communication path switch 12 is provided. This control unit 14 is provided with the control unit 14 for simultaneously calling the public address systems S, -SJ such as this main unit 10a or other main unit 10b from at least one of the key telephones T1 to T. A control circuit 140 is provided for controlling the communication path so that the loudspeaker and the communication path switch 12 are connected to each other.

Here, the features of the present invention are a button telephone T,
A data interface circuit 131 provided in the telephone interface section 13 and a data interface circuit 131 provided in the control section 14 for sending a predetermined dialing signal for simultaneous calling to be made by one of The data transmitting/receiving circuit 141 and the control circuit 140 are connected to a plurality of dedicated 'faL l to L by this dial signal.
An interface circuit 11 provided in the dedicated line interface circuit 11 to capture a predetermined one of the
0, dial signal sending circuits 111a to 111n that send out the predetermined dial signals to each dedicated line, and an incoming call signal that detects the arrival of a predetermined dial signal transmitted from another main unit via the dedicated line. Detection circuit 210a
~21On, dial signal detection circuits 211a to 211n that detect this dial signal, and a public address system designated by this dial signal by the control circuit 140 by determining the dial signals detected by these dial signal detection circuits 211a to 211n, respectively. The communication path switch 12 is selected from among the loudspeaker systems S I” S
The present invention is provided with a dial signal determination circuit 212 that performs selective connection.

Next, the operation of this embodiment will be explained based on FIGS. 1 and 2.

As shown in FIG. 2, in the main unit 10a, when a caller sends a predetermined dial signal from one of the key telephones, the main unit 10a simultaneously captures L1 and L2 and transmits the dial signal to the main unit 10a. Device 10b, IOC
Send at the same time. At this time, the main devices 10b and 10c
Then, control is performed to directly connect the dedicated lines L+ and Lx to predetermined ones of the loudspeaker systems S and -Sz, respectively, by detecting the dial signals. In this way, from the main device 10a to the main device 10b, 10
It becomes possible to call all the public address systems of c.

In FIG. 1, the means necessary for the main unit 10a which is the calling side are an interface circuit 110 of the dedicated line interface section 11 and dial signal sending circuits 111a to 11.
1n, a voice interface circuit 130 and a data interface circuit 131 of the telephone interface unit 13;
Control circuit 140 of control unit 14 and data transmission/reception circuit 1
It is 41. Further, the leased line -Ln is connected to a communication path switch 12 via a leased line interface section 11. Button telephone T, ~T.

The voice line is connected to the communication path switch 12 and the data line is connected to the control unit 14 via the telephone interface unit 13, respectively.

For one button telephone T, dial signals for predetermined simultaneous ringing are sent to the control circuit 140 via the data interface circuit 131 of the telephone interface section 13 and the data transmission/reception circuit 141 of the control section 14.
is input. At this time, the control circuit 140 controls the interface circuit 110 of the leased line interface unit 11 to simultaneously capture the leased line ~L, and sends a message from the button telephone Tk to the dial signal sending circuits 111a~111i. Send dial data. Further, the control circuit 140 controls the communication path switch 12 to switch the leased line to...
Lz is connected to the telephone line Tk via the voice interface circuit 130 of the telephone interface unit 13.

In this way, when a predetermined dialing signal for simultaneous ringing is transmitted from the key telephone Tk, all leased lines, ~L1, are captured simultaneously, and the predetermined dialing signal is transmitted to the main bodies of multiple parties at the same time. sent to the device.

At this time, the telephone line of the button telephone T and all dedicated lines Ll-L
! is connected, and it becomes possible to simultaneously call a plurality of main units from the key telephone T.

The means necessary for the main unit flob on the called side that is connected to the main unit 10a via a dedicated line are the incoming signal detection circuits 210a to 2 of the dedicated line interface unit 11.
1On, dial signal detection circuits 211a to 211n, dial signal determination circuit 212, and interface circuit 110. Further, the loudspeaker devices 5l-3j are connected to the communication path switch 12.

In the main device 10b, when an incoming call is received on the dedicated line L1, the incoming signal is detected in the incoming signal detection circuit 210a of the dedicated line interface section 11. This detection signal is the control circuit 1
40. At the same time, an incoming dial signal from the leased line is detected by the dial signal detection circuit 211a, decoded by the dial signal determination circuit 212, and sent to the control circuit 140 as dial data.

When the control circuit 140 determines that the transmitted dial data indicates a call to a predetermined public address system, it controls the interface circuit 110 of the leased line interface section 11 to respond to the leased line. The communication path is closed, and the communication path switch 12 is controlled to connect the dedicated line to the required loudspeaker devices S, -S.

As a result, the key telephone Tk of the main unit 10a on the calling side and the public address system S of the main unit 10b on the called side.

This means that a communication path has been established between S and S through the dedicated line L1, and it becomes possible for the calling side to call the public address system of the called side via the dedicated line.

In the above explanation, the main unit 1 of each of the calling side and the receiving side is
0a and 10b have the same configuration as shown in Figure 1, but if the main unit is clearly divided into one for calling only and one for receiving calls, A configuration similar to the block configuration diagram of another embodiment of the present invention may be adopted. That is, in this figure, in comparison with FIG. [Apparatus of the Present Invention] In Oe, a button telephone, a telephone interface section, a data transmission/reception circuit, and a dial signal transmission path are omitted.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to simultaneously call a plurality of public address devices via a plurality of dedicated lines, thereby ensuring the wide-area notification of important messages.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 2 is a system diagram of the above embodiment. FIG. 3 is a block diagram of another embodiment of the present invention. 10a to 10e, 10j...main device, 11...
Dedicated line interface section, 12... call path switch,
13...Telephone interface unit, 14...Control unit, 110...Interface circuit, 111a to 111
n...Dial signal output path, 130...Audio interface circuit, 131...Data interface circuit, 140...Control circuit, 141...Data transmission/reception circuit, 210a to 210n...Incoming signal detection circuit, 2
11a to 211n... dial signal detection circuit, 212
...Dial signal determination circuit, 213...Interface circuit, L, ~L, ...Dedicated line, 3l-3z...
Public address system, T. ~Ti...button telephone. Ishibo Example Sis 2 Tera Zu Kabuto 2 Tadashi

Claims (1)

[Claims] (1) The main unit includes a main unit, a plurality of key telephones connected to the main unit, and one or more loudspeakers, and the main unit includes a dedicated line interface unit that accommodates a dedicated line, and a connection between the key telephones. A telephone interface unit that accommodates a telephone line, a communication path switch that interconnects the communication path of this telephone interface unit and interconnects this communication path and a communication path of the dedicated line interface unit, and controls this communication path switch. and a control unit that controls the communication path of the telephone and the amplification device to the call path switch in order to simultaneously call from at least one of the key telephones to the one or more amplification devices. In the button telephone device, the simultaneous paging connection means includes a means for transmitting a paging signal to a dedicated line, and a means for receiving a paging signal arriving via the dedicated line. 1. A button telephone device comprising means for connecting the dedicated line and a public address device when