[code]
#include <EEPROM.h>

String(mystring);
String(nummer);
int pirState = LOW;

void setup() {
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(2, INPUT);
  pinMode(1, OUTPUT);
  pinMode(0, OUTPUT);
                    digitalWrite(4, HIGH);
                    delay(2000);
                    digitalWrite(4, LOW);             
}
                    
void loop()  {
  //mystring = "0";
  String mystring = read_string(0);
  if (mystring == "+436642")  {
                    digitalWrite(0, HIGH);
                    delay(200);
                    digitalWrite(0, LOW);
                    delay(200);
                    digitalWrite(0, HIGH);
                    delay(200);
                    digitalWrite(0, LOW);       
                    delay(200);
  }  
  pirState = digitalRead(2);
  if(pirState == HIGH)  {
    nummer = "+436642";
                    digitalWrite(1, HIGH);
                    delay(1000);
                    digitalWrite(1, LOW);
                    delay(1000);
                    digitalWrite(1, HIGH);
                    delay(1000);
                    digitalWrite(1, LOW);       
                    delay(1000);
    write_string(0, nummer);
  }
  
}

void write_string(int address , String data) {
  int i, string_length = data.length();
  for (i = 0; i < string_length; i++) {
    EEPROM.write(address + i, data[i]);
                    digitalWrite(3, HIGH);
                    delay(300);
                    digitalWrite(3, LOW);
                    delay(300);
  }
  EEPROM.write(address + string_length, '\0'); //mark end of string
}

String read_string(int address) {
  int i, read_length;
  char get_byte, read_data[250];
  get_byte = EEPROM.read(address);
  while (get_byte != '\0' && read_length < 250)
  {
    get_byte = EEPROM.read(address + read_length);
    read_data[read_length] = get_byte;
    read_length++;
  }
  read_data[read_length] = '\0';
  return String(read_data);
}
[/code]