这只是一个基本功能的软件代码，作为学习的材料和各位朋友分享，希望提出批评。 基本功能是实现VOIP的语音的压缩和还原。其中可能存在一些错误。指出跟我联系-This is a basic function of software code, as learning materials, and friends want to share critics. The basic function is to achieve VoIP voice compression and reduction.

VOIP实现网守注册功能和地址解析的详细分析，源代码-achieve VoIP Gatekeeper registration of the address resolution and detailed analysis of the source code

sip and voip signagling code