1、查看某个模块是否被包含在编译选项里了：
See menuselect.makeopts
If you see chan_sip in the MENUSELECT_CHANNELS option, then it wasn't selected for building.
2、查看是否加载了某个模块:
CLI> module show like sip
3、如果没有安装chan_sip模块，则可能是在configure的时候没有安装 openssl-devel
You'll need to install openssl-devel and re-run ./configure.
sudo apt-get install openssl-dev (or libssl-dev on Precise)
4、显示log信息：
在logger.conf里，把event或debug加入console里：
console => warning,notice,error,event,debug
sip set debug on
core set verbose 10
core set debug 10
sip set debug on
一个pc端的voip终端模拟软件： CounterPath.eyeBeam.Enhanced.v1.5.19.4-ZWT