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Hi
I make GPSR session like:
ATE0
AT+CSQ
AT-GSN
AT+CREG=2
AT+CIPMUX=0
AT+CSTT="internet","",""
AT+CIICR
AT+CIFSR
AT+CIPHEAD=1
AT+CDNSCFG="xxx.xxx.xxx.xxx"
AT+CIPSTART="TCP","aaa.aaa.aaa.aaa","port"
AT+CIPSEND
Then I get "> " and send data . It work well by long time.
Then I move modem by car...
Hi
I have the similiar problem with sim900 and I thing about firmware update form B09.
When I connect module to tcp server, every thing work fine. But when modem is moving and change BTS, the GPRS comnection was lost every time.
Is this firmware upgrade problem ?
Hi
In old SIM300 , when I would like to get SMS :
AT+CMGF=1
AT+CMGR=1
It works fine.
And now in new SIM900.
When I call AT+CMGR=1 and there is no SMS in memory - work fine.
When I call AT+CMGR=1 and there is SMS - a have the restart modem.
What is wrong ?
I have SIM300 modem and I would like to get mcc, mnc, lac, cid.
My code :
at+ceng=1
OK
at+ceng?
+CENG: 1,0
+CENG: 0,"0979,26,0,???,??,??,????,??,??"
+CENG: 1,"0985,18,47"
+CENG: 2,"0982,13,53"
+CENG: 3,"0981,13,43"
+CENG: 4,"0976,11,??"
+CENG: 5,"0990,10,57"
+CENG: 6,"0988,10,43"...
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