===============================asterisk pbx培训==========================
开源PBX培训
安装部署（svn\git）
register or mediaserver or routeserver ?
Asterisk(*) 总结了asterisk bpx的核心，拨号方案匹配
exten=>1234,1,App1
exten=>1234,2,App2
exten=>1234,n,HangUp()
AMI\AGI\CLI cti集成，ivr集成？
Application
Bussiness in call
Bussiness out call
Inbound\Outbound channel 理论和业务的结合讨论