Update warning on PostgreSQL configuration after HA configuration

source/administrator/xivo/high_availability/high_availability.rst

@@ -61,6 +61,9 @@ First thing to do is to :ref:`install 2 XiVO <installation>`.
    they both are running the same version of XiVO. Otherwise, the replication might not work
    properly.
 
+.. warning:: If your XiVO is interconnected with a XiVO CC, you **MUST** re-configure postres to accept 
+   connections from XiVO CC - see :ref:`PostgreSQL configuration section <xivo_pbx_configuration>`
+
 You must configure the :abbr:`HA (High Availability)` in the Web interface
 (:menuselection:`Configuration --> Management --> High Availability` page).
 

source/administrator/xivocc/install_and_config/installation/installation.rst

@@ -16,7 +16,8 @@ It describes the installation with the debian package of the whole *XiVO CC*.
   * *XiVO PBX* will be reconfigured during the installation and must be restarted.
     You may accept the automatic restart during the installation or you need to restart
     it manually later before starting the docker containers.
-  * If you configure HA on XiVO, you have to reconfigure postgres for CC ...
+  * If you configure HA on XiVO, you have to re-configure postgres to accept connection of XiVO CC
+    - see :ref:`PostgreSQL configuration section <xivo_pbx_configuration>`
 
 
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