微软RIL白皮书。介绍了微软RIL(Radio Interface Layer)的架构和开发所必须具备的知识，包括简介、RIL Modem接口、开发环境、平台实现、测试，以及相关信息-Microsoft White Paper RIL. It introduced Microsoft RIL (Radio Interface Layer) architecture and the necessary knowledge for developer, including the Introduct

ppp and xmppp are two configurable ppp dialers. mppp is a character based ppp dialer and xmppp is written in X/Motif. Either one can be used to make ppp connection. The programs talks to the modem device directly, therefore, no external sc