diff --git a/gnome/src/dbus/dbus.c b/gnome/src/dbus/dbus.c
index b2cce241cc23f13cf8e078a9885a2c98b7a818d7..437255bce501e99196b7709ea3f69a9563a664fd 100644
--- a/gnome/src/dbus/dbus.c
+++ b/gnome/src/dbus/dbus.c
@@ -2059,6 +2059,18 @@ dbus_get_conference_list(void)
     return list;
 }
 
+gchar **
+dbus_get_display_name_list(const gchar *confID)
+{
+    GError *error = NULL;
+    gchar **list = NULL;
+
+    org_sflphone_SFLphone_CallManager_get_display_names(call_proxy, confID, &list, &error);
+    check_error(error);
+
+    return list;
+}
+
 gchar **
 dbus_get_participant_list(const gchar *confID)
 {
diff --git a/gnome/src/dbus/dbus.h b/gnome/src/dbus/dbus.h
index 230237f8de47666b572b616c81a81a6db1dc9380..619ade0766db172e342effb53cbd5a4d5feafb1f 100644
--- a/gnome/src/dbus/dbus.h
+++ b/gnome/src/dbus/dbus.h
@@ -428,6 +428,12 @@ gint dbus_get_sip_address(void);
  */
 void dbus_add_participant(const gchar *callID, const gchar *confID);
 
+/**
+ * Return a list of display names for this conference (confID)
+ */
+gchar **
+dbus_get_display_name_list(const gchar *confID);
+
 /**
  * Return a list of participant for this conference (confID)
  */
diff --git a/gnome/src/video/video_callbacks.c b/gnome/src/video/video_callbacks.c
index bf532eaa451e53050469cccbda132756d73875ec..920d2d6366f49a3bc631c33e473b047adf60cf19 100644
--- a/gnome/src/video/video_callbacks.c
+++ b/gnome/src/video/video_callbacks.c
@@ -258,57 +258,27 @@ add_handle(const gchar *id)
             title_prefix = _("Conference with");
 
             /* get all the participants name */
-            gchar **participant_list = dbus_get_participant_list(id);
-            for (gchar **participant = participant_list; participant && *participant; participant++) {
-                g_debug("participant %s\n", *participant);
-
-                gchar *new_name = NULL;
-
-                /* create a new callable object to manipulate the id details */
-                callable_obj_t *c = create_new_call_from_details(*participant, dbus_get_call_details(*participant));
-
-                /* if no display name, we show the peer_number */
-                if (g_strcmp0(c->_display_name, "") != 0) {
-                    new_name = g_strdup(c->_display_name);
-                } else {
-                    new_name = g_strdup(c->_peer_number);
-                }
-
-                /* if name exists we must add the new name to the list */
-                if (name) {
-                    gchar *name_list = g_strdup_printf("%s, %s", name, new_name);
-                    g_free(name);
-                    name = name_list;
-                } else {
-                    name = g_strdup(new_name);
-                }
-
-                g_free(new_name);
-                g_free(c);
-            }
-
-            g_strfreev(participant_list);
+            gchar **display_name_list = dbus_get_display_name_list(id);
+            name = g_strjoinv(", ", display_name_list);
+            g_strfreev(display_name_list);
 
         } else if (call_type == IS_CALL) { /* on a simple call */
 
-            /* create a new callable object to manipulate the call details */
-            callable_obj_t *c = create_new_call_from_details(id, dbus_get_call_details(id));
+            GHashTable *details = dbus_get_call_details(id);
 
             /* build the prefix title name */
             title_prefix = _("Call with");
 
             /* if no display name, we show the peer_number */
-            if (g_strcmp0(c->_display_name, "") != 0) {
-                name = g_strdup(c->_display_name);
-            } else {
-                name = g_strdup(c->_peer_number);
-            }
-
-            g_free(c);
+            const gchar *display_name = g_hash_table_lookup(details, "DISPLAY_NAME");
+            if (strlen(display_name) != 0)
+                name = g_strdup(display_name);
+            else
+                name = g_strdup(g_hash_table_lookup(details, "PEER_NUMBER"));
         }
 
         /* build the final title name */
-        window_title = g_strdup_printf("%s %s", title_prefix, name);
+        window_title = g_strjoin(" ", title_prefix, name, NULL);
 
         /* update the window title */
         gtk_window_set_title(GTK_WINDOW(handle->window), window_title);