Research and implementation based on SIP technique of web
SIP is one of the standards for Voice Communications System based on IP. It is also the kernel technique of soft-switch and next generation network (NGN). In this paper, a method using Java SIP Servlet to realize SIP protocol on the explorer of the terminal on the Web is put forward through research on SIP protocol, the relationship between SIP and HTTP is introduced, the key code to achieve SIP by SIP Servlet based on web and key support to build call center based on web were provided.