Device for testing function of telephone exchange

Abstract

A device for testing a function of a telephone exchange during a production process includes a sending-end module for sending a test criterion, a receiving-end module for receiving a test criterion, an input / output interface module connected to a telephone exchange, a call connection indicating unit, a signal switching unit, and a controlling unit for controlling a test procedure. The device not only tests whether a call can be connected and whether a call can be answered, but analyzes local electrical characteristics of the telephone exchange at the telephone exchange-end. With the device, signals treated by an analog-to-digital conversion process can display various voice information of a voice signal conveyed by the telephone exchange, such that a damaged portion of the telephone exchange can be assessed whenever a test fails, thereby cutting test costs and production costs.

Description

technical field [0001] The present invention relates to an automatic test device, more particularly to a function test device for a telephone exchange that can test the call connection function of the telephone exchange in the production process. Background technique [0002] Whether it is a traditional telephone exchange or an Internet telephone exchange, or even a DSL modem, a cable modem (cable modem) and an optical network terminal product (Optical Network Terminal, ONT) that include an Internet telephone exchange function, in the manufacturing process of these products All of them need to test the connection function of their telephone. [0003] The traditional test method is to connect the two telephone interfaces of the telephone exchange to the two telephones respectively, and manually dial from one telephone to the other, and judge the telephone exchange according to whether the other telephone rings or not and whether it can communicate normally. Call online funct...

AI Technical Summary

Problems solved by technology

However, this method requires two additional modems to work together, which not only takes up space in the production line, but is also incapable of testing a large number of products at the same time, and the test data obtained is relatively insufficient.

[0005] Another test method is to obtain complete test results through sophisticated related equipment and instruments. Although the test results are relatively complete, the cost of such sophisticated test equipment is too high, and it is only suitable for testing in the R&D and design stages. On-line testing

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