I want to send AT command with my iPhone app but I don't know how to do it. I know AT command can use for blockSMS, sendSMS, etc. Any help?
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                    Why would you want to send an AT command from an iPhone app? Doesn't the whole iOS framework provide functionality in a much higher level? Can you give a use case? Otherwise, my guess would be to use C and write to some port device under /dev/ if that is possible in iOS. – Rudolfs Bundulis Mar 12 '13 at 09:36
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                    http://www.ifans.com/forums/threads/tutorial-send-sms-with-iphone-modem.144432/ here :D Anyone try this? – user1561904 Mar 12 '13 at 12:53
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                    If there was a way to up-vote more than once i'd have up-voted again and again.Really good question. – Durai Amuthan.H Dec 30 '13 at 11:14
 
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            If the iPhone is unlocked you can download a program called minicom to talk directly through a port. Here is a link to help you: http://www.letsunlockiphone.com/install-minicom-iphone-4-baseband/
This will show you which ports to talk to in your app to send the At commands
Good luck!
        Joe
        
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                    i would like to send AT command from my app, How can i control port? – user1561904 Apr 27 '13 at 03:49