Data Sheet

Smart Machine Smart Decision
GPRS network
OK
Check the class of the MS AT+CGC LASS ? +CGCLASS:B
OK
Establish a context using the terminal AT+CGDCONT=1, OK
equipment: defines CID 1 "IP","CMNET"
and sets the PDP type to IP, access ATD*99# CONNECT
point name and IP address aren’t set.
Cancel a context using the terminal AT+CGDCONT=1, OK
equipment "IP","CMNET"
ATD*99# CONNECT
Pause data transfer and enter Command +++ OK
mode by +++
Stop the GPRS data transfer AT H OK
Reconnect a context using the terminal AT+CGDCONT=1, OK
equipment "IP","CMNET"
ATD*99# CONNECT
Resume the data transfer +++ OK
ATO CONNECT
*Quality of Service (QOS) is a special parameter of a CID which consists of several parameters
itself.
The QOS consists of
The precedence class
The delay class
The reliability class
The peak throughput class
The mean throughput class
And is decided in "requested QOS” and "minimum acceptable QOS”.
All parameters of the QOS are initiated by default value (=0) except the reliability class is 3. To
define a QOS use the AT+CGQREQ or AT+CGQMIN Command.
Overwrite the precedence class of AT+CGQREQ=1,0,0,3 OK
QOS of CID 1 and sets the QOS of ,0,0
CID 1 to be present
Response: all QOS values of the AT+CGQREQ? +CGQREQ: 1,0,0,3,0,0
activated CID. +CGQREQ: 2,0,0,3,0,0
+CGQREQ: 3,0,0,3,0,0
OK
SIM800 Series_AT Command Manual_V1.05 352 2014-07-31