该项目是一个基于SIP协议的IP电话，是项目的1.0版本，实现了基本的语音功能，项目基于VOIP开发完成，该项目可以与IP电话模拟器进行正常的通话-The project is a SIP-based IP telephony, version 1.0 of the project to achieve a basic voice functions, project-based VOIP development is complete, the project can be normal ca