SIM800 sms Send Using Arduino

//Send new SMS command and message number
serialSIM800.write("AT+CMGS="0711034141"\r\n");
delay(500);
serialSIM800.write("AT+CMGS="0706034141"\r\n");
delay(1000);

//Send SMS content
serialSIM800.write("Prime ");
delay(500);
serialSIM800.write("Coil ");
delay(1000);