Motorola G24 Guide Developer's Manual page 168

Phone and Date Books and Clock
+CNUM: "PIN2","8523",129
+CNUM: "","",0
OK
AT+MCSN?
+MCSN: 1
OK
// Restart Phone
AT+CPIN="1111"
OK
// Unsolicited information of record 1 in EFmsisdn in the SIM
+MCSN: "VOICE","054444444"
AT+MCSN=0// Disable unsolicited indication
OK
// Restart Phone
AT+CPIN="1111"
OK
AT+MCSN=0,3,,"ada"
ERROR
AT+MCSN=0,3,"3456346"// Update the <number> of record 3 same <alpha>
OK
AT+CNUM// Reading EFmsisdn from the SIM
+CNUM: "VOICE","054444444",129
+CNUM: "OFFICE","039999999",129
+CNUM: "PIN1","3456346",129
+CNUM: "PIN2","8523",129
+CNUM: "","",0
OK
AT+MCSN=0,3,"","FAX"// Update the <alpha> of record 3 same <number>
OK
AT+CNUM// Reading EFmsisdn from the SIM
+CNUM: "VOICE","054444444",129
+CNUM: "OFFICE","039999999",129
+CNUM: "FAX","",0
+CNUM: "PIN2","8523",129
+CNUM: "","",0
OK
AT+MCSN=0,3,"",""// Resetting record 3 in EFmsisdn in the SIM
OK
AT+CNUM// Reading EFmsisdn from the SIM
+CNUM: "VOICE","054444444",129
+CNUM: "OFFICE","039999999",129
+CNUM: "","",0
+CNUM: "PIN2","8523",129
+CNUM: "","",0
OK
3-84 AT Commands Reference Manual December 31, 2007