基本PJSIP的LINUX下软电话源码。对研究SIP协议很有参考价值。-Basic the PJSIP of LINUX under soft phone source. The study of the SIP protocol is of great reference value.

在Linux上跑程序控制sim900自动联网或者给手机发送一条信息-Sim900 control program run on Linux or automatically to the mobile phone network to send a message