diff --git a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
index 3b1a4b95be..0d9d69549f 100644
--- a/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp16xx/{$mac}.xml
@@ -460,7 +460,13 @@
 <!--  Dial Plan. Default 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}
+
 <!-- <P290>{ x+ | *x+ | *xx | *xxx | *xxxx | *xxxxx | *xxxxxx | **xx | **xxx | **xxxx | **xxxxx | **xxxxxx | **xxxxxxx | **xxxxxxxx | *xx*x+ | \+x+ | \p\a\r\k\+*x+ }</P290> -->
 <!--  Delayed Call Forward Wait Time (in seconds). Default is 20 -->
 <!--  Number: 1 - 120 -->