diff --git a/resources/templates/provision/grandstream/dp715.sm/{$mac}.xml b/resources/templates/provision/grandstream/dp715.sm/{$mac}.xml
index 5ed579a18a..cbdf460782 100644
--- a/resources/templates/provision/grandstream/dp715.sm/{$mac}.xml
+++ b/resources/templates/provision/grandstream/dp715.sm/{$mac}.xml
@@ -367,7 +367,12 @@
 <P72>1</P72>
 
 <!-- Dial Plan -->
+  
+{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 -->
 <P99>1</P99>