diff --git a/resources/templates/provision/grandstream/ht818/{$mac}.xml b/resources/templates/provision/grandstream/ht818/{$mac}.xml
index c1520e6a0b..fae40cd009 100644
--- a/resources/templates/provision/grandstream/ht818/{$mac}.xml
+++ b/resources/templates/provision/grandstream/ht818/{$mac}.xml
@@ -131,7 +131,7 @@
     <!-- # When set to Yes(1), it will override the configured provision path and method. -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P145>0</P145>
+    {if isset($grandstream_dhcp_option_override)}<P145>{$grandstream_dhcp_option_override}</P145>{else}<P145>1</P145>{/if}
 
     <!-- # 3CX Auto Provision. 0 - No, 1 - Yes. Default is Yes. -->
     <!-- # Number: 0, 1 -->
@@ -531,7 +531,7 @@
     <!-- # Allow DHCP Option 120( override SIP server )  0 - No, 1 - Yes. -->
     <!-- # Number: 0, 1 -->
     <!-- # Mandatory -->
-    <P1411>0</P1411>
+    {if isset($grandstream_dhcp_option_override_sip_server)}<P1411>{$grandstream_dhcp_option_override_sip_server}</P1411>{else}<P1411>0</P1411>{/if}
 
     <!-- # SIP Transport 0 - UDP, 1 - TCP, 2 - TLS -->
     <!-- # Number: 0, 1, 2 -->