复合调制解调  Multi-modulation and demodulation

自动回答调制解调器声响耦合器  auto-answer modem acoustic coupler

ADSL调制解调器  ADSL Modem

FSK调制解调器  FSK modem

GPRS调制解调器  gprs modem

HART调制解调器  HART Modem

Hayes调制解调器公司  Hayes

Hayes公司智能型调制解调器  Hayes smart modem

Hayes兼容调制解调器  Hayes-compatible; Hayes-compatible modem

PLC调制解调器  PLC modem

TM-20高速散射调制解调器  TM-20 high-speed troposcatter modem

x调制解调器  x-modem

Y调制解调器协议  Ymodem

Z调制解调器  Z-modem

胞状调制解调器  cellular modem

贝尔兼容调制解调器  Bell-compatible modem

拨号调制解调器  dial modem

超短波数据调制解调器  Ultrashort wave data modem

超群调制解调器  supergroup modem