diff --git a/resources/templates/provision/grandstream/gxw40xx/{$mac}.xml b/resources/templates/provision/grandstream/gxw40xx/{$mac}.xml
index f58141cdcb..91fe915d17 100644
--- a/resources/templates/provision/grandstream/gxw40xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxw40xx/{$mac}.xml
@@ -528,7 +528,13 @@
     <P72>1</P72>
     <!-- Dial Plan -->
     <!-- String Max Length: 1024 -->
-    <P4200>{ x+ | *x+ }</P4200>
+    
+    {if isset($grandstream_dial_plan) }
+    <P4200>{$grandstream_dial_plan}</P4200>
+    {else}
+    <P4200>{literal}{x+|*x+|*++|\p\a\r\k\+*x+| \f\l\o\w\+*x+}{/literal}</P4200>
+    {/if}
+    
     <!-- SUBSCRIBE for MWI. 0 - No, 1 - Yes. -->
     <!-- Number: 0,1 -->
     <!-- Mandatory -->