Receive interrupt Items tagged with Receive interrupt

i want to test dat if my cellphone is responding to AT commands sent by microcontroller
i have written a c program and before wirting this code to controller i want 2 confirm if this code ok???? or i must correct it?? im just sending AT and cheking wether OK recieved and if so turning led on!!!
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#include sbit led=P1^0;
void init()
{
TMOD=0x20;
TH1=0xFD;
SCON=0x50;
TR1=1;
}
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