Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 87 23.06.2010
Response
+CPOL: (list of supported <index>s),(list of supported <format>s)
OK
Test Command
AT+CPOL=?
Parameters
see Write Command
Response
+CPOL: <index1>,<format>,<oper1>
[<CR><LF>+CPOL: <index2>,<format>,<oper2>[…]]
OK
+CME ERROR: <err>
Read Command
AT+CPOL?
Parameters
See Write Command
Response
OK
+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> 0 long format alphanumeric <oper>
1 short format alphanumeric <oper>
2 numeric <oper>
<oper> string type(string should be included in quotation marks):
<format> indicates whether alphanumeric or numeric
format used (see +COPS Command)
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
Execution
Command
AT+COPN
Response
+COPN: <numeric1>,<alpha1 >
[<CR><LF>+COPN: <numeric2>,<alpha2>
[…]]
OK
+CME ERROR: <err>