DTMF controlled loads using gsm

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Ogu Reginald

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Hi, I need a complete project that will make use of a gsm to control 6 loads through DTMF. I will appreciate if the microcontroller is either AT89S52 or any PIC.
Please include both the circuit diagram and the code thanks.
 

Infact can someone direct me to any microcontroller project using DTMF.
 

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