diff --git a/resources/templates/provision/grandstream/ht503/{$mac}.xml b/resources/templates/provision/grandstream/ht503/{$mac}.xml
index 7b6865ddeb..c56315f8db 100644
--- a/resources/templates/provision/grandstream/ht503/{$mac}.xml
+++ b/resources/templates/provision/grandstream/ht503/{$mac}.xml
@@ -187,7 +187,7 @@
 <!--  Number: 0, 1 -->
 <!--  Mandatory -->
 <!--  Reboot required -->
-<P145>1</P145>
+{if isset($grandstream_dhcp_option_override)}<P145>{$grandstream_dhcp_option_override}</P145>{else}<P145>1</P145>{/if}
 
 <!--  Automatic Upgrade. 0 - No, 1 - Check daily, 2 - Check weekly, 3 - Check every () minutes. Default is No. -->
 <!--  Number: 0, 1, 2, 3 -->