Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 186 23.06.2010
OK
Parameters
See Write Command
Write Command
AT+CIPCCFG=
<NmRetry>,<Wa
itTm>,<SendSz>,
<esc>
Response
OK
ERROR
Parameters
<NmRetry> number of retries to be made for an IP packet.
<WaitTm> number of 200ms intervals to wait for serial input before
sending the packet.
<SendSz> size in bytes of data block to be received from serial port
before sending.
<esc> whether turn on the escape sequence, default is TRUE.
Reference Note
This command will be effective only in single connection mode
(+CIPMUX=0)
8.2.24 AT+CIPSHOWTP Display Transfer Protocol in IP Head When Receiving Data
AT+CIPSHOWTP Display Transfer Protocol in IP Head When Receiving Data
Test command
AT+CIPSHOWTP
=?
Response
+CIPSHOWTP: (list of supported <mode>s)
OK
Parameter
See write command
Read command
AT+CIPSHOWTP
?
Response
+CIPSHOWTP: <mode>
OK
Parameter
See write command
Write command
AT+CIPSHOWTP
=<mode>
Response
OK
ERROR
Parameter
<mode> a numeric parameter which indicates whether display transfer
protocol in IP header to received data or not
0 does not display transfer protocol
1 display transfer protocol, the format is “+IPD,
<data size>,<TCP/UDP>:<data>”
Reference Note