diff --git a/resources/templates/provision/cisco/spa509g/{$mac}.xml b/resources/templates/provision/cisco/spa509g/{$mac}.xml
index 29c33eab84..d20ea18cba 100644
--- a/resources/templates/provision/cisco/spa509g/{$mac}.xml
+++ b/resources/templates/provision/cisco/spa509g/{$mac}.xml
@@ -1994,7 +1994,7 @@
 <Speed_Dial_9 group="User/Speed_Dial" />
 
 <!-- User/Supplementary_Services -->
-<CW_Setting group="User/Supplementary_Services">Yes</CW_Setting>
+<CW_Setting group="User/Supplementary_Services">{if $call_waiting == "1"}Yes{else}No{/if}</CW_Setting>
 <Block_CID_Setting group="User/Supplementary_Services">No</Block_CID_Setting>
 <Block_ANC_Setting group="User/Supplementary_Services">No</Block_ANC_Setting>
 <DND_Setting group="User/Supplementary_Services">No</DND_Setting>