Specifications
SIM900 AT Command Manual       
SIM900_AT Command Manual_V1.03  212  12/24/2010 
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OK 
If error is related to ME functionality: 
+CME ERROR: <err> 
Parameters 
<mode> 1 for opening FTP get session 
  2 for reading FTP download data. 
<reqlength> Requested number of data bytes (1-1460)to be read 
<cnflength> Confirmed number of data bytes to be read, which may be less 
than <length>. 0 indicates that no data can be read. 
<error> 61 Net error 
  62 DNS error 
  63 connect error 
  64 timeout 
  65 server error 
  66 operation not allow 
  70 replay error 
  71 user error 
  72 password error 
  73 type error 
  74 rest error 
  75 passive error 
  76 active error 
  77 operate error 
  78 upload error 
79 download error 
Reference 
Note 
When "+FTPGET:1,1" is shown,then use AT+FTPGET:2,<reqlength> to 
read data.  If the module still has unread data, "+FTPGET:1,1" will be 
shown again in a certain time. 
11.2.15 AT+FTPPUT Set Upload File 
AT+FTPPUT Set Upload File 
Test Command 
AT+FTPPUT=? 
Response 
OK 
Write Command 
AT+FTPPUT 
=<mode>,[<reqle
ngth>] 
Response 
If mode is 1 and it is a successful FTP get session: 
OK 
+FTPPUT:1,1,<maxlength> 
If mode is 1 and it is a failed FTP get session: 










