diff --git a/include/phone.es.inc b/include/phone.es.inc
index 8558044..e49886a 100644
--- a/include/phone.es.inc
+++ b/include/phone.es.inc
@@ -5,13 +5,18 @@
  * CCK Field for Spanish phone numbers.
  */
 
-function phone_es_metadata() {
-   // These strings are translated using t() on output.
-   return array(
-     'error' => '"%value" is not a valid Spanish phone number<br>Spanish phone numbers should only contains numbers and spaces and be like 999 999 999',
-   );
- }
+/**
+ * According to this http://en.wikipedia.org/wiki/Telephone_numbers_in_Spain
+ * these are the rules for Spanish telephone number.
+ */
+define('PHONE_ES_REGEX', "/^(\+|0{2}|)?(34|0|)[\s.-]?([1-9][0-9]{1,2})[\s.-]?([1-9][0-9]{2})[\s.-]?([1-9][0-9]{2})$/");
 
+function phone_es_metadata() {
+  // These strings are translated using t() on output.
+  return array(
+    'error' => '"%value" is not a valid Spanish phone number<br>Spanish phone numbers should only contains numbers and spaces and be like 999 999 999 or 99 999 999',
+  );
+}
 
 /**
  * Verifies that $phonenumber is a valid nine-digit Spanish phone number
@@ -20,25 +25,9 @@ function phone_es_metadata() {
  * @return boolean Returns boolean FALSE if the phone number is not valid.
  */
 function valid_es_phone_number($phonenumber) {
-
   $phonenumber = trim($phonenumber);
-
-  // define regular expression
-  //$regex = "/
-  //  \D*           # optional separator
-  //  [69]\d{2}     # first group of numbers
-  //  \D*           # optional separator
-  //  \d{3}         # second group
-  //  \D*           # optional separator
-  //  \d{3}         # third group
-  //  \D*           # ignore trailing non-digits
-  //  $/x";
-    
-    $regex = '/^[0-9]{2,3}-? ?[0-9]{6,7}$/';
-
-    
   // return true if valid, false otherwise
-  return (bool) preg_match($regex, $phonenumber);
+  return (bool) preg_match(PHONE_ES_REGEX, $phonenumber);
 }
 
 /**
@@ -48,26 +37,17 @@ function valid_es_phone_number($phonenumber) {
  *
  */
 function format_es_phone_number($phonenumber, $field = FALSE) {
-
-  // define regular expression
-  //$regex = "/
-  //  \D*           # optional separator
-  //  ([69]\d{2})   # first group of numbers
-  //  \D*           # optional separator
-  //  (\d{3})       # second group
-  //  \D*           # optional separator
-  //  (\d{3})       # third group
-  //  \D*           # ignore trailing non-digits
-  //  $/x";
-
-  $regex = '/^[0-9]{2,3}-? ?[0-9]{6,7}$/';
-  
+  $phone  = str_replace(array(' ', '-', '(', ')'), '', $phonenumber);
   // get digits of phone number
-  preg_match($regex, $phonenumber, $matches);
+  preg_match(PHONE_ES_REGEX, $phone, $matches);
 
-  // construct ten-digit phone number
-  $phonenumber = $matches[1] . ' ' . $matches[2] . ' ' . $matches[3];
+  $formatedphone = '';
+  if ($field && $field['phone_country_code']) {
+    $formatedphone .= '+34 ';
+  }
+  $formatedphone .= $matches[3];
+  $formatedphone .= ' ' . $matches[4] . ' ';
+  $formatedphone .= '' . $matches[5];
 
-  return $phonenumber;
+  return $formatedphone;
 }
-