Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 87 2012.12.10
+CPOL: <index1>,<format>,<oper1>
[<CR><LF>+CPOL: <index2>,<format>,<oper2>[…]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
AT+CPOL?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CPOL=<ind
ex>[,<format>,<o
per>]
Parameters
<index> Integer type: order number of operator in SIM preferred
operator list
<format> Indicates whether alphanumeric or numeric
format used (see +COPS Command)
0 Long format alphanumeric <oper>
1 Short format alphanumeric <oper>
2 Numeric <oper>
<oper> String type(string should be included in quotation marks)
Reference
GSM 07.07 [13]
Note
3.2.45 AT+COPN Read Operator Names
AT+COPN Read Operator Names
Test Command
AT+COPN=?
Response
OK
Response
+COPN: <numeric1>,<alpha1>
[<CR><LF>+COPN: <numeric2>,<alpha2>
[…]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Execution
Command
AT+COPN
Parameters
<numericn> String type (string should be included in quotation marks):
operator in numeric format (see +COPS)
<alphan> String type (string should be included in quotation marks):
operator in long alphanumeric format (see +COPS)
Reference Note