Although telecom system developed rapidly and progressing constantly, the phone is still the simplest and convenient way that people communicate with each other. In particular it comes to business, a lot of transaction details should be verified by telephone. In order to avoid forgetting, misunderstanding or dishonest, it is very important that the recording equipment is a must in some trades. So far, most similar recording devices used the pronunciation card with industry PC, special-purpose software, which causes large systematic capacity requirements and expenses, a few enterprises can accept it. For this reason, combined with computer and telephony integration technology, ARTECH is launching AD120 Single line telephone USB recorder, ARTECH AD120 provides a user friendly DEMO interface, AD120 hardware, DEMO source code & API to fully open SDK for software companies and system integrators. With powerful and flexible functionalities of AD120, it will be very helpful for the second development.