... # +CV120=? (V.120 rate adaption control) AT+CV120=? +CV120: (1),(0,1),(1),(0),(0),(0) # +CSDF=? (Settings date format) AT+CSDF=? ERROR # +CSIL=? (Silence command) AT+CSIL=? ERROR # +CSTF=? (Settings time format) AT+CSTF=? ERROR # +CNUM=? (Subscriber number) AT+CNUM=? # +CREG=? (Network registration) ...