JP3476047B2 - Telephone line test equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone line test apparatus for performing telephone line construction, connecting the telephone line after the completion of the construction, and testing the telephone line. 2. Description of the Related Art Conventionally, when telephone line construction is carried out, a specific telephone number, such as a test call number, is dialed from a telephone to a telephone exchange, thereby confirming whether the telephone line is normal. A test is conducted to determine Specifically, as shown in FIG. 3, for example, by dialing a specific telephone number such as a test call number from a general telephone, the telephone is connected to an exchange via a telephone line, The returned response signal such as a pop-up sound is received and confirmed by the telephone. Thereafter, the exchange recognizes the subscriber by dialing the telephone number of the telephone subscriber from the telephone.
When the exchange recognizes the subscriber, a response signal such as a pop-up sound is returned from the exchange again, so that a predetermined test telephone number, for example, "1" in the case of an insulation test.
The telephone line is tested by dialing "1" or "12" from the telephone in the case of a dial test, and the pass / fail is determined. [0004] The construction of telephone lines is not always performed when the telephone subscribers who are customers are always at home.
The subscriber may be absent, but in such a case, the consent of the subscriber is obtained in advance, the telephone line is constructed when the subscriber is absent, and then the test is performed. In addition, the construction of the telephone line is performed by the above-described procedure using a general telephone. [0005] As described above, when the construction of the telephone line is completed when the subscriber is absent and the test is performed, the telephone in hand is connected to a protector or a terminal box.
A telephone line test is performed, but since the telephone used in this case is a general telephone, it may be considered unbelievable by people around, or even if only the test dial number is used, other people At first glance, it seems that you are connecting a telephone to another person's telephone line without permission, and it seems that you are just making a call.Other people who are not testers at the central office also use ordinary telephones. There is a problem that there is a possibility that an unauthorized telephone connection can be made by pretending to perform a test. When a telephone line test is performed at a customer's house during a move, an indigenous person is moved with a telephone, and if a later person does not have a telephone yet, an exchange is used. There is a problem that the telephone line test cannot be performed. [0007] The present invention has been made in view of the above,
It is an object of the present invention to provide a telephone line test apparatus capable of performing a telephone line test accurately and exclusively without using a general telephone. [0008] In order to achieve the above object, an invention according to claim 1 is a telephone line test apparatus which is connected to a telephone line and tests the telephone line. In response to the operation of the start button and a specific telephone number as a test call number stored in response to the operation of the start button, a dial signal related to the stored specific telephone number is transmitted to the telephone line. Memory means for sending to the exchange via a telephone, a dial button for sending a dial signal relating to a test telephone number, and a dial signal which can receive a dial signal from the dial button and send to the exchange via the telephone line. Transmitting means; signal detecting means for detecting a dial signal relating to a specific telephone number transmitted from the memory means; Based on the dial signal related to the specific telephone number detected by the issuing unit, the dial signal sending unit is controlled to accept the dial signal from the dial button, A telephone line test apparatus comprising: controller means for controlling the dial signal sending means to reject acceptance of a dial signal from the dial button based on an end signal. According to the first aspect of the present invention, after a specific telephone number from the memory means is transmitted to the exchange by operating the start button, a dial signal from the dial button is made valid and transmitted to the telephone line. In accordance with the dial signal from the validated dial button, a test telephone number is sent to the exchange to test the telephone line,
In response to the end number generated by operating the dial button at the end of the test, the transmission of a dial signal from the dial button to the telephone line is refused. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a telephone line test apparatus according to one embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a start button that is operated when starting a telephone line test, and a start button that outputs a start signal. Reference numeral 2 denotes a memory that stores a specific telephone number such as a test call number “111”. The dial memory 3 outputs a specific telephone number stored in response to the start signal of the telephone number, 3 is a registration terminal for registering the specific telephone number in the dial memory 2, and 4 is a dial terminal similar to a general telephone. A dial button 5 for transmitting a signal receives a specific telephone number output from the dial memory 2, sends the specific telephone number as a dial signal to an exchange via a telephone line, and receives the specific telephone number. And a control circuit 6 for controlling the transmission of a dial signal from the dial button 4 to the telephone line in response to the telephone call. 7 is a hook switch similar to that of a general telephone, 8 is a speaker for outputting a response signal of a voice band transmitted from an exchange for confirmation, and 9 is a line connection terminal connected to a telephone line. It is. FIG. 2 is a block diagram showing a detailed configuration of the control circuit 5. As shown in FIG. 2, reference numeral 10 denotes a start signal detection circuit, 11 denotes a dial signal transmission circuit, and 12 denotes a start signal detection circuit.
Is a controller circuit, and a start signal detection circuit 10
Receives a specific telephone number output from the dial memory 2 and controls the controller circuit 12 to receive the specific telephone number.
Notify. Upon receiving the notification, the controller circuit 12 determines that the test has been started, and supplies a test start signal to the dial signal sending circuit 11. Upon receiving the test start signal from the controller circuit 12, the dial signal transmitting circuit 11 receives a dial signal transmitted from the dial button 4 thereafter, and transmits the dial signal to the interface circuit 6.
To the exchange via the telephone line. When the controller circuit 12 receives a predetermined end number for instructing the end of the test from the dial button 4, it supplies the end signal to the dial signal sending circuit 11. Upon receiving the end signal, the dial signal sending circuit 11 rejects the reception of the dial signal from the dial button 4 thereafter. Next, the operation of the telephone line test apparatus configured as described above will be described. To start a telephone line test, the start button 1 is first operated. When the start button 1 is operated, a start signal is supplied from the start button 1 to the dial memory 2, whereby a specific telephone number stored in the dial memory 2, specifically, the test call number "111" is dialed. The data is output from the memory 2 and supplied to the control circuit 5. When receiving the specific telephone number, the control circuit 5 supplies the specific telephone number to the interface circuit 6, thereby causing the interface circuit 6 to make a line connection, and from the interface circuit 6 to the exchange via the telephone line. While transmitting the specific telephone number, the control circuit 5 receives the specific telephone number at the start signal detecting circuit 10 and supplies the output signal to the controller circuit 12. When receiving the output signal of the start signal detecting circuit 10, the controller circuit 12 determines that the test has been started, and supplies a start signal to the dial signal transmitting circuit 11, whereby the dial signal transmitting circuit 11 Control is performed so that signals can be accepted. As described above, when a specific telephone number is sent from the interface circuit 6 to the exchange via the telephone line, the exchange receives the specific telephone number, thereby identifying that the test has started. Then, for example, a response signal such as a pop-up sound which is a signal in a specific voice band is returned to the telephone line test apparatus via the telephone line. Upon receiving the response signal from the exchange, the telephone line test apparatus outputs the response signal from the speaker 8 and checks it. When the response signal from the exchange is confirmed by the speaker 8, the operator performing the test operates the dial button 4 to supply the subscriber number of the telephone line to the control circuit 5. In the control circuit 5, the subscriber number is received by the dial signal transmitting circuit 11, and the subscriber number is transmitted from the interface circuit 6 to the exchange via a telephone line. In this case, the dial signal transmission circuit 1
As described above, 1 is controlled to be able to accept a dial signal from the dial button 4 under the control of the controller circuit 12. Upon receiving the subscriber number, the exchange confirms the subscriber number and returns a response signal to the telephone line test apparatus again. Upon receiving the response signal from the exchange, the telephone line test apparatus outputs the response signal from the speaker 8 and checks it. Thereafter, the number of the target test, for example, “11” for the insulation test, “1” for the dial test
While transmitting a test number such as "2" to the exchange by operating the dial button 4, the test proceeds according to the announcement from the exchange, and if necessary, a ringing test of the bell using the hook switch 7 is also performed. When the dial button 4 is operated to output a predetermined end number after the end, the end signal is identified by the controller circuit 12 and supplied to the dial signal sending circuit 11. When receiving the end signal, the dial signal sending circuit 11 rejects the subsequent reception of the dial signal from the dial button 4. Therefore, thereafter, even if the dial button 4 is operated, the dial signal is not transmitted to the exchange. As described above, according to the present invention,
After transmitting a specific telephone number from the memory means to the exchange by operating the start button, the dial signal from the dial button is made valid and can be transmitted to the telephone line, and the dial signal from the valid dial button is used. The test telephone number is sent to the exchange to test the telephone line, and in response to the end number generated by operating the dial button at the end of the test, rejection of the subsequent dial signal from the dial button to the telephone line is refused. If the dialing button is not activated even if the device is connected to the telephone line and the subscriber number is pressed, the dial signal will not be sent to the exchange. The possibility of making a secure telephone connection can be excluded, and this equipment can also be used if the telephone is taken away by moving. It is possible to perform the test of the telephone line by to bring at the time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of a telephone line test apparatus according to one embodiment of the present invention. FIG. 2 is a block diagram showing a detailed configuration of a control circuit used in the telephone line test apparatus shown in FIG. FIG. 3 is a sequence chart showing a procedure during a telephone line test. [Description of Signs] 1 Start button 2 Dial memory 4 Dial button 5 Control circuit 6 Interface circuit 8 Speaker 10 Start signal detection circuit 11 Dial signal transmission circuit 12 Controller circuit

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-4-140952 (JP, A) JP-A-4-372255 (JP, A) JP-A-2-92257 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) H04M 1/24 H04M 3/30

Claims (1)

(57) [Claims] [Claim 1] A telephone line test apparatus connected to a telephone line to test a telephone line, wherein a start button operated to start the test and a test call number are specified. By storing the telephone number and responding to the operation of the start button,
Memory means for sending a dial signal related to the stored specific telephone number to the exchange via a telephone line; a dial button for sending a dial signal related to a test telephone number; and a dial signal from the dial button. Accept
Dial signal sending means that can be sent to the exchange via the telephone line; signal detecting means for detecting a dial signal related to a specific telephone number sent from the memory means; and a specific signal detected by the signal detecting means. Based on a dial signal related to a telephone number, the dial signal transmitting means is controlled to accept a dial signal from the dial button, and based on an end signal related to a predetermined end number from the dial button, the dial is controlled. Controller means for controlling the signal sending means to reject acceptance of the dial signal from the dial button.