Cellular communication modem interface adaptation layer for implementing communication with the modem | 蜂窝通信modem接口适配层，负责与modem通信
Managing all types of call connections | 管理各种类型的通话连接
Managing all types of call connections | 管理各种类型的通话连接
System ability manager | 系统服务管理
Establishing communication with RIL Adapter | 电话基础服务模块主要功能实现与RIL Adapter进行通信
Establishing communication with RIL Adapter | 电话基础服务模块主要功能实现与RIL Adapter进行通信
