AT-Commands for Huawei Modems

Diagnostic AT Commands

AT^U2DIAG=0

Modem Mode

AT^U2DIAG=1

Modem and CD-Rom Mode

AT^U2DIAG=255

Modem+CD-Rom+Card-Reader Modem+ Factory Defaults Setting

AT^U2DIAG=256

Modem+Card-Reader Mode

AT^U2DIAG=257

Disable Application Port

AT^U2DIAG=276

Reset to factory Defaults

at^u2diag=256 -> wyłączałem wirtualny CD-ROM
at^u2diag=5 -> tylko karta sieciowa
at^u2diag=255 -> powrót do ustawień pierwotnych
at^u2diag=268 -> aktywny modem, CD-ROM i czytnik kart
at^u2diag=276 -> modem + k.sieciowa jednocześnie

Voice activation (uaktywnienie rozmów głosowych)

AT^CVOICE=? Gives Status of your modems voice..
AT^CVOICE=0 Enable Voice
AT^CVOICE=1 Disable Voice

Activation: AT^U2DIAG=5
Reset: AT^U2DIAG=276
Status: AT^CVOICE=?

other AT-Commands

ATI : Gives Manufacture Information of Modem
AT+CGMR : Gives firmware version of Modem
AT+CGSN : Gives IMEI of Modem
AT+CIMI : Gives IMSI of Modem
AT&V : Status

PIN

AT+CPIN=1234 : Enter PIN code
AT+CPWD="SC","old","new" : Change PIN code from 'old' to 'new'
AT+CLCK="SC",0,"1234" : Remove PIN code

Online AT Command Tester
http://m2msupport.net/m2msupport/module-tester/

http://www.unlockmodemfree.biz/2012/09/useful-at-commands-for-huawei-modem.html