Easy GPRS User Guide
80000ST10028 Rev. 0 - 02/01/07
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1.3 GPRS context activation and data state entering
This operation corresponds to the dial and connect of a CSD GSM data call issued to an internet
service provider.
• send command

ATD*99***<cid>#<cr>

where:
<cid> - is the index number of the desired context to be used (up to 5 different context)
• wait for response:
Response Reason Action
CONNECT GPRS connection is being
processed proceed ahead with the
authentication & Packed data
protocol
ERROR some error occurred check context parameters and
retry. See par. 1.2.1, 1.2.2,
1.2.3
check also Network registration
status.
+CME ERROR: <error code>
some error occurred check context parameters and
retry. See par. 1.2.1, 1.2.2,
1.2.3
check also Network registration
status.
For example:
1- Let's assume you want to activate and enter the GPRS state with context number 1(cid) written
before with your GPRS requested QoS parameters:
command:
ATD*99***1# <cr>
response
CONNECT
At this point, your application should start the PPP protocol with the LCP Exchange phase:
Î LCP Configure Request