User's Manual

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customers or API functions offered by OS, such as the RasDial function in Windows OS.
DWORD RasDial(
LPRASDIALEXTENSIONS dialExtensions,
LPTSTR phoneBookPath,
LPRASDIALPARAMS rasDialParam,
DWORD NotifierType,
LPVOID notifier,
LPHRASCONN pRasConn
):
3.2 SMS
The SMS feature is implemented by AT commands. You can set the service center address, switch message format,
enable/disable receiving message report, delete message, preview message, receive/send message and so on.
The related AT commands are listed as follow:
·New Message Indication: AT+CNMI
·Message Send: AT+CMGS
·Message Preview: AT+CMGPR
·Message Delete: AT+CMGD
·Message format Switch: AT+CMGF
·Service Center Address Set: AT+CSCA
·Receiving Message Report enable/disable: AT+CNMI=2,1,0,1,0
3.3 start-up mode switching
The U6100 module supports start-up mode switch between USB Disk start-up and Modem start-up, mode switch
between Read-Only and Read-Write, mode switch between USB Disk function and Modem function.