Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 134 23.06.2010
OK
Parameter
See Write Command
Response
+CDRIND: <n>
OK
Read Command
AT+CDRIND?
Parameter
See Write Command
Response
OK
ERROR
Parameter
<n> a numeric parameter which indicates whether to enable an
unsolicited event code indicating whether a CS voice call, CS
data has been terminated.
0 disable
1 enable
Write Command
AT+CDRIND=<
n>
Unsolicited result code
When enabled, an unsolicited result code is returned after the connection
has been terminated
+CDRIND: < type >
Parameter
< type > connection type
0 CSV connection
1 CSD connection
2 PPP connection
Reference Note
6.2.17 AT+CSPN Get Service Provider Name from SIM
AT+CSPN Get Service Provider Name from SIM
Read Command
AT+CSPN?
Response:
+CSPN: <spn>,<display mode>
OK
If error is related to ME functionality:
+CME ERROR: <err>