JPH0320118B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention enables one of a plurality of (N) telephones to make or answer a central telephone call even when the other (N-1) telephones are in the middle of an internal call, and This invention relates to the configuration of a button telephone device that allows the addition of one more telephone of the same structure.

Multi-pair wiring between the button telephone and the main device is undesirable not only from the construction standpoint but also from the aesthetic point of view.
Many attempts have been made to construct button telephone devices with a small number of wire pairs by applying processor technology.

Such a button telephone device with a small number of wire pairs is useful not only for business use but also for small-scale offices and home use.

If it is possible to give a preferential curve call/response function to one specific telephone among the N telephones in such a button telephone device, urgent and important matters can be handled from a specific telephone. desirable.

In addition, in addition to the button telephone device system consisting of N telephones, the (N+1)th telephone T
It is desirable to be able to easily add (N+1).

The present invention provides a means for rationally realizing such an object, and will be explained below using the drawings.

FIG. 1 shows a configuration diagram of a key telephone device configuration system of the present invention. This device consists of a main device and a telephone.The telephone includes a master telephone T(1) and a slave telephone T(2).
~T(N), the parent phone is directly connected to the main device, the child phones are multi-connected to the main device, and both are star-connected to the main device.

Although the main telephone and the slave telephone have the same hardware configuration, the extension number of the master telephone is set to number 1, and the extension number of the slave telephone is set to numbers 2 to N.

ME is the main device, T(1) to T(N) are telephones, T(N
+1) is an additional telephone, and T(2) to T(N) have the same configuration as T(1), so the details are omitted.

101 is a communication line that also serves as a calling signal transmission path dedicated to T(1), 102 is a communication line that also serves as a common calling signal transmission path for T(2) to T(N), and 103 is a communication line that serves as a calling signal transmission path for T(1) to T(N). (N)
A common control signal transmission line 104 is a central office line.

In the main device ME, 105 is a call current supply circuit, 106 is an incoming call detection circuit, and 107 is a micro.
Main device control device composed of a processor, 108
is an oscillation circuit for sending an audible signal to the telephones T(1) to T(N), 109 and 110 are analog switches,
Reference numerals 111 and 112 are contacts of a communication path switching relay for a dedicated communication line, 113 is a data transmission circuit, 114 is a data reception circuit, and 115 is a power supply circuit.

In the telephone T(1), 201 is a telephone number setting terminal, and 202 is a micro. A telephone control circuit composed of a processor, 203 a switch linked to a speaker volume, 204 an analog switch, 205 a speaker for transmitting audible sound, 20
6 is the amplifier, 206' is the speaker volume, 2
07 is a communication circuit, 208 is a data transmission circuit, 20
9 is a data receiving circuit, and 210 is a constant voltage circuit.

To set the extension number, select one of the telephone number setting terminals 201 provided for each telephone set in telephones T(1) to T(N), set the extension number by strap wiring, and connect the telephone to the telephone micro - The control circuit 202 containing a processor identifies the setting state, determines the extension number of the own telephone, and transmits the set extension of each telephone to the main device ME through the control signal transmission line 103 commonly connected to all telephones. This is done by sending the number information as a time division multiplexing control signal and having each telephone extract a control signal corresponding to its own telephone from the time division multiplexing control signal sent from the main device control circuit 107.

A microcontroller built into the main device control circuit 107.
The processor stores the extension number information sent from each telephone, and stores the extension number T in advance in the program.
By providing a process for identifying (1) and T(2) to T(N), the extension number setting state of each telephone is identified on software.

Next, an outline of the operation of the parts directly related to the present invention will be described.

(1) Incoming call from the central office line When there is an incoming call from the central office line, the main device control circuit 107 detects this via the incoming call detection circuit 106, sends this data to all telephones, and sets the central office ringtone to the same tone as the dedicated call line. It is sent through the communication line switching relay. Based on this data, the telephone control circuit 202 drives a P relay (not shown), a central office line lamp, and an amplifier.

(2) Office line response If you go off-hook while receiving a call, this data is transmitted from the telephone control circuit 202. As a result, the main device control circuit 107 transmits data for P relay off, amplifier off, and office line lamp ignition to the all telephone control circuit 202, and also transmits the dedicated call path switching relay when the off-hook telephone is the master telephone, and the dedicated call path switching relay when the off-hook telephone is the slave telephone. Restore the common channel switching relay.

(3) Calling from a central office line and making a call When a central office line is acquired, this data is transmitted from the telephone control circuit 202. As a result, the main device control circuit 107 causes the extension lamp (not shown) to go out.
The central office line lamp ignition data is sent to all telephone control circuits 2.
02 and restores the dedicated channel switching relay when the operating telephone is the master telephone, and restores the common channel switching relay when the operating telephone is the slave telephone.

(4) Calling and responding to the central office line during an extension call For example, if telephones T(2) and T(3) are engaged in an extension call, the call line 102 common to telephones T(2) to T(N) is Even if the telephones T(4) to T(N) are used to make a central line call, the main unit control circuit 1
At 07, it is determined that the telephone line 102 is in use, and calling from the central office line is prohibited.

However, the parent phone T(1) is connected to the child phones T(2) to T(N).
Dedicated communication line 10 with star configuration wiring for
1, and even if the telephone line 102 is in use, the dedicated telephone line switching relay is restored by data processing by the microprocessor in the main unit control circuit 107 when the telephone T(1) makes or responds to the central office line. and connect the contacts 111 and 112 of the relay to the central line 104.
It connects to the side and enables calling or responding to the central office line.

(5) Setting the central office line ring tone As mentioned above, when all telephones T(1) to T(N) are in standby mode, when an incoming call signal is sent from the central office exchange to the central office line 104, the incoming call detection circuit 106 It is detected and transmitted to the main device control circuit 107.

The main device control circuit 107 transmits necessary data to the telephones T(1) to T(N) through the control signal transmission line 103 according to the incoming call information, and at the same time transmits the necessary data to the oscillation circuit 1.
The signal generated at 08 is sent to analog switch 10.
9,110 is turned on, and telephones T(1) to T are connected through communication lines 101, 102 which also serve as calling signal transmission paths
(N), and a central office line incoming signal is sounded by the speaker 205 via the amplifier 206 in the telephone.

In this case, the telephones T(1) to T(N) are provided with a volume 206', which allows the volume of the central office line ring tone to be adjusted.
The analog switch 204 is activated by the telephone control circuit 202 depending on the state of the switch 203 linked to
You can set the central office line ringtone by turning it on or off.

(6) Extension calling Next, regarding extension calling, it is preferable that each of the N telephones has the same structure from the viewpoint of manufacturing and compatibility, and therefore it is desirable that the extension calling button on each telephone has the same structure. To make an extension call on N telephones, set the strap wiring of the telephone number setting terminal 201 of each telephone to N.
Select one from among them to confirm your own telephone number, select one button corresponding to the telephone to make the call from the N extension call buttons on the telephone, and press that button to control the telephone. The circuit 202 identifies the data and transmits the data to the main device ME through the control signal transmission line 103.
The data received by the data receiving circuit 114 of the main device ME is identified by the main device control circuit 107, transmitted through the data transmitting circuit 113, and again via the control signal transmission line 103 to the calling telephone as a time division multiplexed control signal. This is done by the telephone making the call identifying its own telephone through the strap wiring of the telephone number setting terminal 201 and extracting a control signal for the child call.

(7) Addition of telephones Add an additional (N+1)th telephone T(N+1) to the button telephone device system configured with N telephones.
In the embodiment of the present invention, (N+1) settings of the telephone number setting terminal 201 of each telephone are provided in advance, and (N
+1)th telephone T(N+1), the strap of the telephone number setting terminal 201 is set to (N+
1) Connect to the main device through the control signal transmission line 103 and identify it with the telephone control circuit 202.
The information is transmitted to the ME, and the main device control circuit 107 confirms the addition of the telephone T(N+1).

For calls to the extensions of the Nth and (N+1)th telephones from the T(1) to T(N-1) telephones, press the nth extension call button of the T(1) to T(N-1) telephones. It can be called by pressing .

At this time, from any of the T(1) to T(N-1) telephones, the main device ME
, the nth extension calling data is sent to the telephones T(N) and T(N+1).
are called at the same time, and after the ringing tone ends, the person's name is called by voice, and the called party responds in response to the call heard from the speakers of both telephones.

The above makes it possible to add telephone T(N+1).

As mentioned above, it is very difficult to put it into practical use by giving priority to the functions of a specific telephone in a button telephone device consisting of N telephones of the same structure, and by making it possible to add the (N+1)th telephone. It is not only convenient, but also has great effects in terms of construction and maintenance.

[Brief explanation of the drawing]

ME...Main device, T(1) to T(N)...Telephone,
T(N+1)...Additional telephone set, 101...Talking line that also serves as a calling signal transmission line exclusively for T(1), 102...
A communication line that also serves as a calling signal transmission path common to T(2) to T(N), 103...A control signal transmission line common to T(1) to T(N), 104...A central office line, 201... ...Telephone number setting terminal.

Claims (1)

[Claims] 1. A main device connected to a pair of office lines and N telephones of the same structure are branch-connected from the main device to a pair of control signal transmission lines, and the control signal transmission means is connected to the main device and In a button telephone device operated by a microprocessor installed in each telephone, there is a communication line that also serves as a dedicated ringing signal transmission path for a specific one of N telephones, and another (N-1) ) A telephone line that also serves as a common calling signal transmission path is installed in the base telephone, one of the telephone number setting terminals in each telephone is selected, and the extension number is set by strap wiring using the microprocessor in the telephone. Determine your own extension number, identify the extension numbers of one specific telephone and other (N-1) telephones, and make a dedicated call when a specific telephone calls or answers the central telephone number. Data processing by the microprocessor in the main unit that restores the communication line switching relay and connects the dedicated communication line to the central office line through the contacts of the relay allows the telephone to switch from one telephone to another (N −
1) Even if the main unit telephone is in the middle of an extension call, you cannot make a call to the central line.
A button telephone device configuration method that allows for responses. 2. In the key telephone device consisting of N telephones of the same structure, N telephone number setting terminals are provided for each telephone in order to identify the N telephones, and one terminal is set for each telephone from among the telephone number setting terminals. Select the telephone number setting terminal to set the number, and for each telephone call, use the N extension buttons on each telephone.
A telephone call is made by selecting one button corresponding to the telephone to be called, and one additional telephone setting terminal is provided on each telephone to make (N+1) terminals, and the number is set to (N+1) for the Nth and (N+1)th telephone calls. 2. The button telephone device configuration system according to claim 1, wherein the (N+1)th telephone can be added by sharing the Nth extension button of each telephone.