Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 161 23.06.2010
1..5 QOS reliability class; default value: 3
<peak> a numeric parameter which specifies the peak throughput
class
0 (default) QOS peak throughput class subscribed value
1..9 QOS peak throughput class
<mean> a numeric parameter which specifies the mean throughput
class
0 (default) QOS mean throughput class subscribed value
1..18 QOS mean throughput class
31
QOS mean throughput class best effort
Reference Note
7.2.5 AT+CGACT PDP Context Activate or Deactivate
AT+CGACT PDP Context Activate or Deactivate
Test Command
AT+CGACT=?
Response
+CGACT: (list of supported <state>s)
OK
Parameters
See Write Command
Read Command
AT+CGACT?
Response
+CGACT: <cid>,<state>[<CR><LF>+CGACT:<cid><state>…]
OK
Write Command
AT+CGACT=[<s
tate> [,<cid>]]
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<state> indicates the state of PDP context activation
0 – deactivated
1 – activated
Other values are reserved and will result in an ERROR
response to the Write Command.
<cid> a numeric parameter which specifies a particular PDP
context definition (see +CGDCONT Command)
1..3 PDP Context Identifier, cid 3 is reserved and is always
defined, it cannot be changed by user.
Reference Note