diff --git a/NumberFormat.php b/NumberFormat.php
index <HASH>..<HASH> 100644
--- a/NumberFormat.php
+++ b/NumberFormat.php
@@ -108,7 +108,7 @@ class NumberFormat
     }
 
     /**
-     * @return boolen
+     * @return boolean
      */
     public function hasNationalPrefixFormattingRule()
     {
diff --git a/PhoneNumberType.php b/PhoneNumberType.php
index <HASH>..<HASH> 100644
--- a/PhoneNumberType.php
+++ b/PhoneNumberType.php
@@ -32,4 +32,7 @@ class PhoneNumberType
     // A phone number is of type UNKNOWN when it does not fit any of the known patterns for a
     // specific region.
     const UNKNOWN = 10;
+
+    // Voicemail
+    const VOICEMAIL = 11;
 }
PhoneNumberType::VOICEMAIL was undefined

Also corrected PHPDoc tag for a function in NumberFormat (boolean was incorrectly spelt)