SMS：Short Message Service 短信服务
Wi-Fi：wireless Fidelity 无线保真;
SIM卡：Subscriber Identity Module 客户身份识别卡;
pre-paid Phone Card：储值卡;
Roaming：漫游;
Voice Prompt：语音提示;
WAP：Wireless Application Protocol 无线应用协议;
SMS：Short Message Service 短信服务
Wi-Fi：wireless Fidelity 无线保真;
SIM卡：Subscriber Identity Module 客户身份识别卡;
pre-paid Phone Card：储值卡;
Roaming：漫游;
Voice Prompt：语音提示;
WAP：Wireless Application Protocol 无线应用协议;