Transceiver Based On The Fixed Phone Short Message System

Transmitting And Receiving Short Message (TARSM) base of telephone is an arisen new operation by CHINA TELECOM last year. The system flat roof with TARSM by telephone have been accomplished on the whole, CHINA TELECOM has promulgated concerned agree and standard. The market foreground of TARSM with telephone is very widely.This thesis mainly discusses to design a TARSM user end system base of the technology criterion. The design consists of circuit design and software design.First of all, the thesis introduces the basal content about Chinese News Terminal Serve Link Criterion V1.2, which has been promulgated by CHINA TELECOM . And following introduce the basic principle of FSK signal transmission by public switched telephone network (PSTN). This paper discusses the structure and properties of TARSM user end system. In the term of the request, we provide the application design of TARSM user end system. This paper will discuss the design of unit circuit, interface and software design of MCU. At last provide some debug result for reference.