Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 161 12/24/2010
[<CR><LF>+CGQREQ:
<cid>,<precedence>,<delay>,<reliability>,<peak>,<mean>
[…]]
OK
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CGQREQ=
<cid>[,<precede
nce>[,<delay>[,<
reliability>[,<pea
k>[,<mean>]]]]]
Parameters
<cid> a numeric parameter which specifies a particular PDP context
definition (see +CGDCONT Command)
1..3 Definition stored in non-volatile memory (refer to
+CGDCONT) cid 3 is reserved and is always defined, it
cannot be changed by user.
The following parameter are defined in GSM 03.60
<precedence> a numeric parameter which specifies the precedence class
0 QOS precedence class subscribed value
1..3 QOS precedence class
<delay> a numeric parameter which specifies the delay class
0 QOS delay class subscribed value
1..4 QOS delay class
<reliability> a numeric parameter which specifies the reliability class
0 QOS reliability class subscribed value
1..5 QOS reliability class; default value: 3
<peak> a numeric parameter which specifies the peak throughput
class
0 QOS peak throughput class subscribed value
1..9 QOS peak throughput class
<mean> a numeric parameter which specifies the mean throughput
class
0 QOS mean throughput class subscribed value
1..18 QOS mean throughput class
31
QOS mean throughput class best effort
Reference Note