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SMS and Dialing problem.

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diepvu1805

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Hi all,
I am using SIM900B. I have some question. pls, help me?
1/ Can send SMS when dialing? If yes, What AT command support that?
2/ How to check status(CONNECT, BUSY, DISCONNECT, NO CARRIER...) of SIM900B modem when dialing?
Thank you,
 

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