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Old 12-08-2010, 12:07 AM   #1
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AT command for GPRS connectivity


I read that "ATDT*99#" is used to create a GPRS connection through a GSM/GPRS modem how exactly this AT command works.
Please help on any findings...........

Thanks in advance
Old 12-08-2010, 12:29 AM   #2
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The AT command set originated with dialup modems (specifically the Hayes smartmodem), and has been extended for use with cell phone connections.

This command set is interpreted by the modem (or cell phone). You will find lists of these commands, though they can vary slightly between devices.

For example, ATDT*99# is a ATtention command to Dial using Tone dialling, and by convention, *99# is the access point.
Old 12-08-2010, 12:46 AM   #3
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AT command for GPRS connectivity

Thanks for reply.

Actually a bit of confusion was as it is a Wireless connection and Here it is Dial using Tone dialing or dial-up through a number -- usually we call it in case of our telephone lines.

Thanks a lot.


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