diff --git a/htdocs/telephonie/script/graph-statistiques.php b/htdocs/telephonie/script/graph-statistiques.php
index 7fc47433488..9e29902cabe 100644
--- a/htdocs/telephonie/script/graph-statistiques.php
+++ b/htdocs/telephonie/script/graph-statistiques.php
@@ -150,45 +150,15 @@ $graphgain->GraphDraw();
 /*
 /*************************************************************************/
 
-$sql = "SELECT ".$db->pdate("date")." as date, duree";
-$sql .= " FROM ".MAIN_DB_PREFIX."telephonie_communications_details";
-
-if ($db->query($sql))
-{
-  $heure_appel = array();
-  $jour_semaine_nb = array();
-  $jour_semaine_duree = array();
-
-  $num = $db->num_rows();
-  if ($verbose) print "$num lignes de comm a traiter\n";
-  $i = 0;
-
-  while ($i < $num)
-    {
-      $obj = $db->fetch_object();	
-
-      $h = strftime("%H",$obj->date) * 1; // suppression du 0
-
-      $heure_appel_nb[$h]++;
-      $heure_appel_duree[$h] += $obj->duree;
-
-      $u = strftime("%u",$obj->date) - 1; // 1 pour Lundi
-
-      $jour_semaine_nb[$u]++;
-      $jour_semaine_duree[$u] += $obj->duree;
-
-      $i++;
-    }
-}
-
 $file = $img_root . "communications/heure_appel_nb.png";
 if ($verbose) print "Heures d'appels\n";
 $graphha = new GraphHeureAppel ($db, $file);
-$graphha->GraphDraw($heure_appel_nb);
+$graphha->GraphDraw();
 
 $file = $img_root . "communications/joursemaine_nb.png";
+if ($verbose) print "Jours de semaines\n";
 $graphha = new GraphJourSemaine ($db, $file);
-$graphha->GraphDraw($jour_semaine_nb);
+$graphha->GraphDraw();
 
 repart_comm($db);
 
diff --git a/htdocs/telephonie/stats/graph/heureappel.class.php b/htdocs/telephonie/stats/graph/heureappel.class.php
index ed7db7b5592..b41da384880 100644
--- a/htdocs/telephonie/stats/graph/heureappel.class.php
+++ b/htdocs/telephonie/stats/graph/heureappel.class.php
@@ -22,9 +22,8 @@
 
 require_once (DOL_DOCUMENT_ROOT."/telephonie/stats/graph/brouzouf.class.php");
 
-class GraphHeureAppel extends GraphBrouzouf{
-
-
+class GraphHeureAppel extends GraphBrouzouf
+{
   Function GraphHeureAppel($DB, $file)
   {
     $this->db = $DB;
@@ -41,7 +40,33 @@ class GraphHeureAppel extends GraphBrouzouf{
 
   Function GraphDraw($g)
   {
-    $this->GraphMakeGraph($g, $labels);
+
+    $sql = "SELECT ".$this->db->pdate("date")." as date, duree";
+    $sql .= " FROM ".MAIN_DB_PREFIX."telephonie_communications_details";
+    
+    if ($this->db->query($sql))
+      {
+	$heure_appel = array();
+	$num = $this->db->num_rows();
+	$i = 0;
+	
+	while ($i < $num)
+	  {
+	    $obj = $this->db->fetch_object();	
+	    
+	    $h = ceil(strftime("%H",$obj->date)); // suppression du 0
+	    
+	    $heure_appel_nb[$h]++;
+	    $heure_appel_duree[$h] += $obj->duree;
+	    
+	    $i++;
+	  }
+      }
+
+    if ($num > 0)
+      {
+	$this->GraphMakeGraph($heure_appel_nb, $labels);
+      }
   }
 
 }
diff --git a/htdocs/telephonie/stats/graph/joursemaine.class.php b/htdocs/telephonie/stats/graph/joursemaine.class.php
index e375f11990c..27af98eb04b 100644
--- a/htdocs/telephonie/stats/graph/joursemaine.class.php
+++ b/htdocs/telephonie/stats/graph/joursemaine.class.php
@@ -39,10 +39,8 @@ class GraphJoursemaine extends GraphBrouzouf{
     $this->barcolor = "green";
   }
 
-  Function GraphDraw($g)
+  Function GraphDraw()
   {
-
-
     $sql = "SELECT ".$this->db->pdate("date")." as date, duree";
     $sql .= " FROM ".MAIN_DB_PREFIX."telephonie_communications_details";
     
@@ -68,8 +66,11 @@ class GraphJoursemaine extends GraphBrouzouf{
 	    $i++;
 	  }
       }
-        
-    $this->GraphMakeGraph($jour_semaine_nb,array('Lun','Mar','Mer','Jeu','Ven','Sam','Dim'));
+
+    if ($num > 0)
+      {        
+	$this->GraphMakeGraph($jour_semaine_nb,array('Lun','Mar','Mer','Jeu','Ven','Sam','Dim'));
+      }
   }
 
 }