diff --git a/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
index e3cfd6cdee..49bbdff5c5 100644
--- a/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp21xx/{$mac}.xml
@@ -297,7 +297,13 @@
     <!-- Dial Plan. Default value is { x+ | *x+ | *xx*x+ } -->
     <!-- String -->
     <!-- Mandatory -->
+    
+    {if isset($grandstream_dial_plan) }
     <P290>{$grandstream_dial_plan}</P290>
+    {else}
+    <P290>{literal}{x+|*x+|*++|\p\a\r\k\+*x+| \f\l\o\w\+*x+}{/literal}</P290>
+    {/if}
+    
     <!-- Delayed Call Forward Wait Time (in seconds). Default is 20 -->
     <!-- Number: 1 - 120 -->
     <!-- Mandatory -->