Provides telephony persistent data storage and DataAbility access interfaces | 负责telephony持久化数据存储，提供DataAbility访问接口
负责建立蜂窝数据连接
hardware abstraction test suite | hats兼容性测试套
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
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
Peripheral driver HDI interface definition | 外设驱动HDI接口定义
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
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
Providing SMS and MMS functions | 负责短彩信相关功能
Implementing basic call services over carrier networks | 负责运营商网络的基础通话实现
Storing declaration files for JavaScript APIs | JavaScript API 公共仓，存放 d.ts 声明文件
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
Managing all types of call connections | 管理各种类型的通话连接
Implementing telephony-specific status registration for the app | 实现APP对telephony相关状态的注册
Peripheral driver HDI interface definition | 外设驱动HDI接口定义
Peripheral driver of the Hardware Driver Foundation (HDF) | HDF外设驱动
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
Storing declaration files for JavaScript APIs | JavaScript API 公共仓，存放 d.ts 声明文件
