public boolean containsResend(){
		if(len<6) return false;
		for (int i = 0; i < len-3; i++) {
			if(array[i]=='R' && array[i+1]=='e' && array[i+2]=='s' && array[i+3]=='e' && array[i+4]=='n' && array[i+5]=='d') return true;
		}
		return false; //ASCII
	}