(First, introduce the parameter settings of Huawei ET128 (the G3 software and the driver of the et128 network card must be installed): find the right button of "My Computer" on the desktop - "Device Manager" - "Moderator" - "HUAWEIMobileCMCCMSS" and "HUAWEIMobileCMCCModem" Respectively (both have to change their characteristics) right-click on them to find - "Features" - "Advanced" - "Additional Initialization Commands".)