diff --git a/php/classes/CatalogCacheMgr.php b/php/classes/CatalogCacheMgr.php
index cd0d591..8cc4963 100644
--- a/php/classes/CatalogCacheMgr.php
+++ b/php/classes/CatalogCacheMgr.php
@@ -24,7 +24,7 @@ class CatalogCacheMgr extends TimeTableCacheMgr
     $this->cache = new CatalogCacheObject();
 		if (!empty($options['nparams'])) {
 			for ($i = 0; $i < (int)$options['nparams']; $i++) {
-				$this->cache->addParameter(CatalogCacheMgr::DEFAULT_PARAM_ID_PREFIX.(string)($i+1), 'column_'.(string)($i+1), 1, 0);
+				$this->cache->addParameter(CatalogCacheMgr::DEFAULT_PARAM_ID_PREFIX.(string)($i+1), 'column_'.(string)($i+1), 1, 0, "");
 			}
 		}
 		else if (!empty($options['parameters'])) {
@@ -39,7 +39,11 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 				else {
 					$id = 'cat_param_id_'.$index;
 				}
-				$this->cache->addParameter($id, $parameter['name'], intval($parameter['size']), intval($parameter['type']));
+				$description = "";
+				if (isset($parameter['description'])) {
+					$description = $parameter['description'];
+				}
+				$this->cache->addParameter($id, $parameter['name'], intval($parameter['size']), intval($parameter['type']), $description);
 				++$index;
 			}
 		}
@@ -64,7 +68,11 @@ class CatalogCacheMgr extends TimeTableCacheMgr
 
 		$info = $this->objectMgr->getUploadedObject($name, $format,TRUE);
 		foreach ($info['parameters'] as $parameter) {
-			$this->cache->addParameter($parameter['id'], $parameter['name'], intval($parameter['size']), intval($parameter['type']));
+			$description = "";
+			if (isset($parameter['description'])) {
+				$description = $parameter['description'];
+			}
+			$this->cache->addParameter($parameter['id'], $parameter['name'], intval($parameter['size']), intval($parameter['type']), $parameter['description']);
 		}
 
 		return $result+ array('parameters' => $info['parameters']);
diff --git a/php/classes/CatalogCacheObject.php b/php/classes/CatalogCacheObject.php
index 5b8eb38..ebc84c3 100644
--- a/php/classes/CatalogCacheObject.php
+++ b/php/classes/CatalogCacheObject.php
@@ -26,13 +26,14 @@ class CatalogCacheObject extends TimeTableCacheObject
 		return $intervalObj;
 	}
 
-	public function addParameter($id, $name, $size, $type)
+	public function addParameter($id, $name, $size, $type, $description)
 	{
 	    $this->parameters[] = array(
 				'id' => $id,
 				'name' => $name,
 				'size' => $size,
 				'type' => $type,
+				'description' => $description,
 			);
 	}
 
@@ -49,46 +50,56 @@ class CatalogCacheObject extends TimeTableCacheObject
 			fwrite($handle,pack('L',strlen($parameter['id'])));
 		  	//Param name length
 			fwrite($handle,pack('L',strlen($parameter['name'])));
-			  //Param Size
+			//Param Size
 			fwrite($handle,pack('L',$parameter['size']));
-				//Param Type
+			//Param Type
 			fwrite($handle,pack('L',$parameter['type']));
-				//Param Id
+			//Description Size
+			fwrite($handle,pack('L',strlen($parameter['description'])));
+			//Param Id
 			for ($i = 0; $i < strlen($parameter['id']); ++$i)
-					fwrite($handle,pack('C',ord($parameter['id'][$i])));
-				//Param name:
+				fwrite($handle,pack('C',ord($parameter['id'][$i])));
+			//Param name:
 			for ($i = 0; $i < strlen($parameter['name']); ++$i)
-					fwrite($handle,pack('C',ord($parameter['name'][$i])));
+				fwrite($handle,pack('C',ord($parameter['name'][$i])));
+			//Param description
+			for ($i = 0; $i < strlen($parameter['description']); ++$i)
+				fwrite($handle,pack('C',ord($parameter['description'][$i])));
 		}
 	}
 
 	protected function loadAdditionalHeaderBin($handle) {
-				//Params Number
+			//Params Number
 			if (!$res = unpack('Lnumber',fread($handle,4)))
 				return false;
 			$nbParams = $res['number'];
 
 			for ($i = 0; $i < $nbParams; ++$i) {
-					//Param Id length
+				//Param Id length
 		 		if (!$res = unpack('Lidlength',fread($handle,4)))
 					return false;
 				$idlength = $res['idlength'];
 
-					//Param Name length
-			  if (!$res = unpack('Lnamelength',fread($handle,4)))
+				//Param Name length
+			  	if (!$res = unpack('Lnamelength',fread($handle,4)))
 					return false;
 				$namelength = $res['namelength'];
 
-					//Param Size
-			 if (!$res = unpack('Lsize',fread($handle,4)))
-				return false;
-			 $size = $res['size'];
+				//Param Size
+			 	if (!$res = unpack('Lsize',fread($handle,4)))
+					return false;
+			 	$size = $res['size'];
 
 				 //Param Type
 				if (!$res = unpack('Ltype',fread($handle,4)))
 					return false;
 				$type = $res['type'];
 
+				//Param Description lenfth
+				if (!$res = unpack('Ldescriptionlength',fread($handle,4)))
+					return false;
+				$descriptionlength = $res['descriptionlength'];
+
 				//Param Id
 				$id = "";
 				for ($j = 0; $j < $idlength; ++$j)
@@ -98,7 +109,7 @@ class CatalogCacheObject extends TimeTableCacheObject
 						$id .= chr($res['id']);
 					}
 
-					//Param Name
+				//Param Name
 				$name = "";
 				for ($j = 0; $j < $namelength; ++$j)
 				{
@@ -107,7 +118,16 @@ class CatalogCacheObject extends TimeTableCacheObject
 					$name .= chr($res['name']);
 				}
 
-				$this->addParameter($id, $name, $size, $type);
+				//Param description
+				$description = "";
+				for ($j = 0; $j < $descriptionlength; ++$j)
+				{
+					if (!$res = unpack('Cdescription',fread($handle,1)))
+						return false;
+					$description .= chr($res['description']);
+				}
+
+				$this->addParameter($id, $name, $size, $type, $description);
 			}
 			return true;
 	}
@@ -137,7 +157,7 @@ class CatalogCacheObject extends TimeTableCacheObject
 
 		echo " => Parameters : ".PHP_EOL;
 		foreach ($this->parameters as $parameter) {
-			echo "    * id = ".$parameter['id'].", name = ".$parameter['name'].", size = ".$parameter['size'].", type = ".$parameter['type'].PHP_EOL;
+			echo "    * id = ".$parameter['id'].", name = ".$parameter['name'].", size = ".$parameter['size'].", type = ".$parameter['type'].", description = ".$parameter['description'].PHP_EOL;
 		}
 		echo PHP_EOL;
 
diff --git a/php/classes/TimeTableMgr.php b/php/classes/TimeTableMgr.php
index ff496cd..2f81d86 100644
--- a/php/classes/TimeTableMgr.php
+++ b/php/classes/TimeTableMgr.php
@@ -84,7 +84,12 @@ class TimeTableMgr extends AmdaObjectMgr
 				else
 				$attributesToReturn[$attribute->tagName] =  $attribute->nodeValue;*/
 				//BRE - load all except intervals - Intervals will be loaded later with 'loadIntervalsFromObject' function
-				if ($attribute->tagName != 'intervals') {
+				if ($attribute->tagName == 'parameters'  && method_exists($this,'getCatalogParamDescription')) {
+					$parameters_desc = $this->getCatalogParamDescription(array('id' => $id, 'type' => $nodeType));
+					if ($parameters_desc['success'])
+						$attributesToReturn[$attribute->tagName] = $parameters_desc['parameters'];
+				}
+				else if ($attribute->tagName != 'intervals') {
 					$attributesToReturn[$attribute->tagName] = $attribute->nodeValue;
 				} else {
 					
--
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