diff --git a/PhoneNumber.php b/PhoneNumber.php
index <HASH>..<HASH> 100644
--- a/PhoneNumber.php
+++ b/PhoneNumber.php
@@ -18,7 +18,7 @@ class PhoneNumber {
 	}
 
 	public function setCountryCode($value) {
-		$countryCode = value;
+		$this->countryCode = $value;
 		return $this;
 	}
 
@@ -27,4 +27,49 @@ class PhoneNumber {
 		return $this;
 	}
 
+	/**
+	 * @var int
+	 */
+	private $nationalNumber = NULL;
+
+	public function hasNationalNumber() {
+		return isset($this->nationalNumber);
+	}
+
+	public function getNationalNumber() {
+		return $this->nationalNumber;
+	}
+
+	public function setNationalNumber($value) {
+		$this->nationalNumber = $value;
+		return $this;
+	}
+
+	public function clearNationalNumber() {
+		$this->nationalNumber = NULL;
+		return $this;
+	}
+	
+	/**
+	 * @var boolean
+	 */
+	private $italianLeadingZero = NULL;
+
+	public function hasItalianLeadingZero() {
+		return isset($this->italianLeadingZero);
+	}
+
+	public function isItalianLeadingZero() {
+		return $this->italianLeadingZero;
+	}
+
+	public function setItalianLeadingZero($value) {
+		$this->italianLeadingZero = $value;
+		return $this;
+	}
+
+	public function clearItalianLeadingZero() {
+		$this->italianLeadingZero = NULL;
+		return $this;
+	}
 }
Added information on PhoneNumber