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I have tried to send the data through socket communication.
when I set the AT command using AT+CGATT=1 for activate the GPRS but every time received ERROR.
Also i tried to IDEA SIM, DOCOMO SIM and VODAFONE SIM card but received ERROR.
e.g.
AT
OK
AT+CGATT?
+CGATT : 0
OK
AT+CGATT=1
ERROR
How...
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