We could conclude that the phonology of Dong Jieyuan Xi Xiang Ji is the actual instance of the phonology of northern China,which provides valuable information for us to study the phonetics of north dialect system.

There are large quantities of references of Beijing Mandarin phonetic studies,among them,Beijing Mandarin phonetic textbooks and reference books in Meiji Period of Japan deserve to be paid attention.

As the foundation of Qing Dynasty, a large amount of Eight Banners people of Manchu and the Manchu who had been living in the northeast entered Beijing, and Manchu language they said produced great effects on Beijing pronunciation.

It was analyzed the business functional requirements of Hohhot Railway Administration’s freight transportations integrated information services,introduced the design thinking,overall structure of Freight Transportation Integrated Information Service System,designed the system function from the telephone voice service,the short note service,the freight transportation marketing.

Introduction to develop multimedia telephone voice system with CTI technology and computer multimedia technological.

Multi-speaker segmentation and clustering of telephone speech;

Intelligence telephone speech solicit students system makes use of the current and prosperous telephone net, and follows with the advanced technique that is absorbed in aolvanced country, and adopts the calculator network technique, arithmetic figure signal to handle the technique, speech to handle the technique, multi-media technique and open system to design the construction.

In order to cancel the reflecting echo of telephone speech interactive system,the telephone channel and line echo were studied.