彩信通知是通过SMS发过来的，本文是对完整的一个彩信通知数据包的解析，可是花费了很多功夫，看完应该会很有收获！-MMS notification is sent through the SMS, this article is the complete MMS notification of a packet analysis, but spent a lot of effort will be rewarding reading!

PPP协议(Point-to-Point Protocol点到点协议)是为在同等单元之间传输数据包这样的简单链路设计的链路层协议。-PPP protocol (Point-to-Point Protocol Point-to-Point Protocol) link layer protocol for packet transmission between the same unit so a simple link design.