diff --git a/source/administration/call_completion/call_completion.rst b/source/administration/call_completion/call_completion.rst
index f7dd1dc6d703583cef02243c7d66dac787044492..2b0d4b9b1e8d70eab2d863f949d53a4b40e058ee 100644
--- a/source/administration/call_completion/call_completion.rst
+++ b/source/administration/call_completion/call_completion.rst
@@ -1,3 +1,5 @@
+.. _ccss:
+
 ***************
 Call Completion
 ***************
diff --git a/source/upgrade/upgrade.rst b/source/upgrade/upgrade.rst
index c94869e5dab56fb9dd9dd8f8dafd48dc9b5407fc..023883405b0671d1881107662ba3c099cdaa886d 100644
--- a/source/upgrade/upgrade.rst
+++ b/source/upgrade/upgrade.rst
@@ -146,6 +146,9 @@ Upgrade Notes
   maintained manually. No action is needed upon upgrade but be aware that the upstream sample file
   is now available in :file:`/usr/share/dahdi/modules.sample`. See
   :ref:`dahdi modules documentation <load_dahdi_modules>` for detailed info.
+* The new :ref:`CCSS feature <ccss>` will not be enabled upon upgrade, you must explicitly enable it
+  in the :menuselection:`IPBX --> IPBX Services --> Extensions` menu.
+
 
 14.16
 -----