Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 182 23.06.2010
1 it prompts echo ‘>’ and shows “send ok” when send successfully
2 it neither prompts echo ‘>’ nor shows “send ok” when send
successfully
Reference Note
8.2.18 AT+CIPSERVER Configure as Server
AT+CIPSERVER Configure as Server
Test Command
AT+CIPSERVE
R=?
Response
+CIPSERVER: (0-CLOSE SERVER, 1-OPEN SERVER),(1,65535)
OK
Read Command
AT+CIPSERVE
R?
Response
+CIPSERVER: <mode>[,<port>,<channel id>,<bearer>]
OK
Parameters
See write command
Write Command
AT+CIPSERVE
R=<mode>[,<por
t>]
Response
OK
ERROR
Parameters
<mode> 0 close server
1 open server
<port> 1..65535 Listening port
<channel id> channel id
<bearer> GPRS bearer
Reference Note
This command is allowed to establish a TCP server only when the state is IP
INITIAL or IP STATUS when it is in single state. In multi-IP state, the
state is in IP STATUS only.
8.2.19 AT+CIPCSGP Set CSD or GPRS for Connection Mode
AT+CIPCSGP Set CSD or GPRS for Connection Mode
Test Command
AT+CIPCSGP=?
Response
+CIPCSGP:0-CSD,DIALNUMBER,USER
NAME,PASSWORD,RATE(0-3)
+CIPCSGP: 1-GPRS,APN,USER NAME,PASSWORD
OK
Parameters