Help for GSM Remote Control

hello ! i'm trying make gsm remote control these arduino parts http://store.arduino.cc/index.php?main_page=product_info&cpath=11&products_id=195
http://store.arduino.cc/index.php?main_page=product_info&cpath=37_5&products_id=282
http://store.arduino.cc/index.php?main_page=product_info&cpath=16_20&products_id=113
does know code must upload make ?

i have modified code project http://scuola.arduino.cc/lesson/lvevk1a/using_sms_messages_to_control_led_color    because want control pin13 in order connect relay !
i made code  :  #include <gsm.h> // includes gsm library, included in arduino ide


#define pinnumber "" // declaration of constant pinnumber used push pin number of sim card
#define pin 13 // declaration of constant pin, , setting output nr. 6


gsm gsmaccess; // opens gsm access on shield.
gsm_sms sms;

char remotenumber[20]; // variable store remote number modem.
char c; //variable reading sms messages sim card

int x=0; //counter number of sms messages processed
char lastm; //variable stop sms replying
string lastmess; //for storing whole message

// **** 2 setup ****

void setup() {
  //setup sms recieving. serial setup makes possible monitor status on pc while connected
  serial.begin(9600);
  serial.println("sms recieving");
   

   
  boolean notconnected = true; // defines variable indicates no gsm connection if true
  while(notconnected) {  // if there no connection, program runs gsmacess. gsmacess returns gsm_ready when connected
    if(gsmaccess.begin(pinnumber"0462")==gsm_ready) // if have pin number on sim card, write parameters here in quotes. pinnumber"9876"
    notconnected = false;
    else {
      //messages printed on serial monitor or lcd screen, tries again in 1000 milliseconds
      serial.println("no connection");

    }
  }
  // if connection established
  serial.println("gsm connected"); //gsm connected
  serial.println("waiting"); //waiting sms
   
}

// **** 3 loop ****

void loop() {

  if (lastmess == "h")
    {
      digitalwrite(13,high);
    }
    else if (lastmess == "l")
    {
      digitalwrite(13,low);
    }
  //reading messages
  if (sms.available()) // if there sms on sim card
  {
    x++; //message counter adds one
    sms.remotenumber(remotenumber, 20);   
     
    //show message on monitor
    serial.println("messages received from");
    serial.println(remotenumber); //prints senders number on serial monitor
    serial.println("message:");

     
    while(c=sms.read()) {
      string nextchar = string (c);
      string mess = (lastmess + nextchar);
      lastmess = mess;
      /*sms.read collects 1 digit of messages @ time , stores in variable c.
      while loop builds string variable "lastmess" each byte in messages displaying.
      */
    }
     
    serial.println(lastmess); // prints whole messages on monitor , lcd screen
   
     
  }//end for
   
    sms.flush(); //discards sms message

}
i uploaded uno + gsm shield without errors , send sms   "h"  pin13 didn't go high , led didn't blink !
could me find mistakes @ code ?  ?
  here results of i've done   http://postimg.org/image/v121wnhwr/

Arduino Forum > Products > Arduino GSM Shield (Moderator: fabioc84) > Help for GSM Remote Control

arduino