Seven Du
Consultant, Writer, and Software Engineer in Yantai China
Coder, developer, also works as a system administrator. VoIP fan, created FreeSWITCH-CN and RTS.cn .
He writes Blogs. He also has a Linked in profile.
He is the author of two books - FreeSWITCH the Definitive Guide and Kamailio in Action in Chinese.
He is working on a product XSwitch .