Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 160 12/24/2010
<cid>
1..3 PDP Context Identifier
Definition stored in non-volatile memory (refer to
+CGDCONT). cid 3 is reserved and is always defined, it
cannot be changed by user.
<precedence>
0 QOS precedence class subscribed value
1..3 QOS precedence class
<delay>
0 QOS delay class subscribed value
1..4 QOS delay class subscribed
<reliability>
0 QOS reliability class subscribed value
1..5 QOS reliability class.
<peak>
0 QOS peak throughput class subscribed value
1..9 QOS peak throughput class
<mean>
0 QOS mean throughput class subscribed value
1..18 QOS mean throughput class
31 QOS mean throughput class best effort
Reference Note
7.2.4 AT+CGQREQ Quality of Service Profile (Requested)
AT+CGQREQ Quality of Service Profile (Requested)
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
Test Command
AT+CGQREQ=?
Parameters
See Write Command
Read Command
AT+CGQREQ?
Response
+CGQREQ: <cid>,<precedence>,<delay>,>reliability>,<peak>,<mean>