Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 160 23.06.2010
7.2.4 AT+CGQREQ Quality of Service Profile (Requested)
AT+CGQREQ Quality of Service Profile (Requested)
Test Command
AT+CGQREQ=?
Response
+CGQREQ: <PDP_type>,(list of supported <precedence>s),(list of
supported <delay>s),(list of supported <reliability>s),<list of supported
<peak>s),(list of supported <mean>s)
[<CR><LF>+CGQREQ: <PDP_type>,(list of supported <precedence>
s),(list of supported <delay>s),(list of supported <reliability>s),（list of
supported <peak>s),(list of supported <mean>s)
[…]]
OK
Parameters
See Write Command
Read Command
AT+CGQREQ?
Response
+CGQREQ: <cid>,<precedence>,<delay>,>reliability>,<peak>,<mean>
[<CR><LF>+CGQREQ:
<cid>,<precedence>,<delay>,<reliability>,<peak >,<mean>
[…]]
OK
Parameters
See Write Command
Write Command
AT+CGQREQ=
<cid>[,<precede
nce>[,<delay>[,<
reliability>[,<pea
k>[,<mean>]]]]]
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
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 (default) QOS precedence class subscribed value
1..3 QOS precedence class
<delay> a numeric parameter which specifies the delay class
0 (default) 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