Rainbow Electronics GM862-QUAD-PY - Manual (Page 15)

Easy GPRS User Guide
80000ST10028 Rev. 4 - 16/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 15 of 63
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***#
where:
- 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: 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#
response
CONNECT
At this point, your application should start the PPP protocol with the LCP Exchange phase: