diff --git a/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml b/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
index bae9f044b6..a97537da8a 100644
--- a/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp1450bk/{$mac}.xml
@@ -101,7 +101,7 @@
 <!-- Register Expiration (in minutes). Default is 60. Max about 45 days -->
 <!-- Number: 1 - 64800 -->
 <!-- Mandatory -->
-<P32>3</P32>
+<P32>{$account.1.register_expires}</P32>
 
 <!-- Reregister Before Expiration (in seconds). Default is 0 second -->
 <!-- Number: 0 - 64800 -->
@@ -660,7 +660,7 @@
 <!-- Register Expiration (in minutes). Default is 60. Max is 45 days -->
 <!-- Number: 1 - 64800 -->
 <!-- Mandatory -->
-<P412>3</P412>
+<P412>{$account.2.register_expires}</P412>
 
 <!-- Reregister before Expiration (in seconds). Default is 0 -->
 <!-- Number: 0 - 64800 -->