JPH027754A - Telephone communication system - Google Patents

Abstract

PURPOSE:To attain simple connection in the case of connecting a telephone set to an exchange by outputting an identification signal identifying the dial system to the telephone set from the exchange in response to a hook-on signal from the telephone set. CONSTITUTION:With a hook off signal from a hook switch section 9 supplied to the exchange, the exchange gives a dial identification signal representing the dial system of the exchange to the telephone set via a line 2 as a reply signal. In the case of the dial identification signal being a 1000Hz signal representing the dial pulse system, a detection circuit 15 of a control system 10 of the telephone set detects the dial identification signal and in the case of a 2000Hz signal representing the pushphone dial system, a detection circuit 16 detects the dial identification signal and a CPU 11 selects the dial system automatically. Thus, the in the case of the user connecting the telephone set to the exchange, it is not required to check the dial system of the exchange or the selection of the dial system by a changeover switch and simple connection is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a telephone communication system comprising a switch and a telephone set used in a circuit switched network.

(Prior Art) Generally, in a telephone communication system consisting of an exchange and a telephone used in a circuit-switched network, there are two types of telephone dialing methods: a push button method and a dial pulse method. Depending on the dialing speed, the method is determined by the line of the exchange to which the telephone is connected, and it is necessary to use the predetermined Daicel method when dialing the telephone.

Conventionally, when connecting a telephone to an exchange, it was necessary to check whether the line of the exchange to be connected was a pushbutton system or a dial pulse system, and then select the dialing system using the changeover switch on the telephone according to the results of this check. There is.

For this reason, the line of the exchange to which the telephone is connected is
It was necessary to know whether to use the button button method or the dial pulse method, and it was also necessary to set the switches.

However, with exchanges installed in buildings, there are some problems, such as the dialing system of the exchange's lines cannot be known without asking the building manager.

In particular, recently, users can easily connect their telephones to exchanges using Plug Shack 11, and anyone can easily carry a mobile phone connection. desired.

Therefore, when connecting telephones to an exchange, there was a drawback in that the telephones could only be connected inside the tube.

(Problems to be Solved by the Invention) This invention provides a simple (11
, and its purpose is to provide a telephone communication system that can be connected to a simple IT when connecting a telephone to an exchange. be.

[Configuration of the Invention (Means for Solving the Problems) The telephone communication system of the present invention includes a telephone and an exchange that connects a line in response to a dial signal from the telephone. The exchange is provided with an output means for outputting an identification signal for identifying the dialing method when an off-hook signal from the telephone is received, and the telephone is configured to select the dialing method by the identification signal from the identification signal output means. The apparatus is provided with a determining means for making a determination, and a means for outputting a dial signal using a dialing method according to the determination result of the determining means.

(Function) When a telephone is connected to an exchange, the exchange outputs an identification signal for identifying the dialing system at step 7 in response to an on-hook signal from the telephone, and the output identification signal causes the telephone to connect. The dialing method is determined on the side, and dialing is performed using the dialing method according to the result of this determination.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 2 shows a telephone communication system used in the circuit switched network of the present invention. That is, it is composed of an exchange 1 and telephones 3 connected to the exchange 1 via a line 2. The exchange 1 is installed in a building, for example, and is connected to other exchanges via a public network 4. Above telephone 3
The device is comprised of a dial portion 6 on the top surface of the main body 5, a telephone receiver (transceiver) 8 connected to the main body 5 via a cord 7, and the like.

The exchange 1 outputs a dial identification signal corresponding to the dialing method χ, I according to a response signal supplied from a hook switch section (described later) when the handset 8 of the telephone 3 is picked up. As this dial identification signal, in the case of the dial pulse method, a 1000 Hz dial identification signal as shown in FIG. It is designed to output a dial identification signal of 2000H2 as shown.

As shown in FIG. 1, inside the main body 5, there is a hook switch section 9, which is normally in a call waiting state (on-hook) and outputs an off-footer signal when the receiver 8 is disconnected, and a control section 9. A circuit 10 is built-in. The control circuit 10 includes a CPU II that controls the whole, an amplifier 12 that amplifies the dial identification signal supplied from the line 3, a band pass filter 13 that passes only the signal of the frequency of 100 OI supplied from the amplifier 12, and The amplifier 12
a band pass filter 14 that passes only the signal of the frequency of 2000H2 supplied from the band pass filter 13;
a detection circuit 15 for detecting a 100OH2 dial identification signal supplied from the bandpass filter 14 to 1;
A detection circuit 16 that detects the co-supplied 2000H2 dial identification signal, a dial pulse circuit 17 that outputs a dial pulse signal (line connection request) corresponding to the key input signal supplied from the CPU II to the line 3, and the CPU II It is constituted by a bush dial circuit 18 that outputs a bush dial signal (line connection request) to the four wires 3 corresponding to the key input signal supplied from the key input signal. When the dial identification signal is supplied from the detection circuit 15, the CPU 1 determines that the dial pulse method is used, outputs the key manual signal supplied from the dial section 6 to the dial pulse circuit 17, and also outputs the key manual signal supplied from the dial section 6 to the dial pulse circuit 17, and circuit 16
If a dial identification signal is supplied from the dial section 6, it is determined that the button dial system is being used, and the key manual signal supplied from the dial section 6 is output to the button dial circuit 18.

Further, the hook switch section 9 is connected to the telephone receiver 8, a telephone receiver (not shown), and the like.

Next, the operation in such a $1.7 configuration will be explained.

For example, now, a telephone 3 is connected via a line 2 to an exchange 1 installed in a building or the like. Then, when the handset 8 is disconnected, an off-footer signal is output from the hook switch section 9 to the exchange via the four-wire 2. Upon supply of this off-hook signal, exchange 1 outputs a dial identification signal indicating the dialing system of exchange 1 to telephone 3 via line 2 as a response signal. This dial identification signal passes through the hook switch section 9, is amplified by the amplifier 12, and is then outputted to the detection circuit 15 via the bandpass filter 13, and is also outputted to the detection circuit 16 via the bandpass filter 14. . As a result, if the dual dial identification signal does not indicate the ear pulse method and is 1000H2 (No. 6), the detection circuit 15 detects the dial identification signal and outputs the detection result to the CPU 1. 20 The dial identification signal indicates the bush dial method
If the signal is 00 Hz, the detection circuit 16 detects the dial identification signal and outputs the detection result to the CPU 1.1. As a result, the CPU II
If the dial identification signal It is supplied from the detection circuit 16, it is determined that the dial pulse system is used, and if the dial identification signal (3) is supplied from the detection circuit 16, it is determined that the bush dial system is used.

Then, when a key manual input signal is supplied from the dial unit 6 while determining whether the CPU 1 or the dial pulse method is selected, the CPU II outputs the key input signal to the dial pulse circuit 17.

Then, the dial pulse circuit 17 outputs a dial pulse signal corresponding to the supplied key input signal to the exchange 1 via the four wires 2. As a result, the exchange 1 performs line connection according to the dial pulse signal.

Further, when a key manual signal is supplied from the dial section 6 while determining whether the CPU 1 or the button dial system is selected, the CPU II outputs the key manual signal to the button dial circuit 18.

Then, the bush dial circuit 18 outputs a bush dial signal corresponding to the supplied key manual signal to the exchange 1 via the line 2. As a result, the exchange 1 connects the line according to the bush dial (No. 8).

It should be noted that the above-mentioned determination of the dialing method may be performed only when connecting to an exchange, and the determination result may be stored in a memory (not shown), or it may be performed for each off-footer.

As described above, the dial type 11 is determined based on the dial identification signal from the exchange, and dialing can be performed using the dial type 11 corresponding to the determination result. In other words, the dialing method is automatically selected. As a result, when a user connects a telephone to an exchange, there is no need to check the dialing method of the exchange or select the dialing method using a switch.
Also, anyone can easily connect without any specialized knowledge. In other words, you can connect as is without worrying about the dialing method.

In the above embodiment, a case has been described in which two types of dial identification signals with different frequencies are output, but the invention is not limited to this, and signals with the same frequency but with different periods,
It may be coded No. 15 or the like.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to provide a telephone communication system that allows easy connection of a telephone to an exchange.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a block diagram showing the main parts of the control system of a telephone, Fig. 2 is a diagram showing the configuration of the telephone communication system, and Fig. 3 is a diagram showing the configuration of the telephone communication system. FIG. 3 is a waveform diagram for explanation. 1... Switchboard, 2... Line, 3... Telephone, 4...
...Public line, 6...Dial section, 8...Receiver 1 receiver, 10...1111h system, 11...CPU, 13.
14...Band pass filter, 15.16...Detection circuit, 17...Dial pulse circuit, 18...Bush dial circuit. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] In a telephone communication system comprising a telephone and an exchange that connects a line in response to a dial signal from the telephone, when the exchange is supplied with an off-hook signal from the telephone, An output means for outputting an identification signal for identifying a dialing method is provided, and the telephone has a determining means for determining the dialing method based on the identification signal from the identification signal outputting means, and a dialing method according to the determination result of the determining means. 1. A telephone communication system comprising means for outputting a dial signal.