diff --git a/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml b/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
index 6a2a4f5c42..812044fc97 100644
--- a/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp17xx/{$mac}.xml
@@ -5806,7 +5806,7 @@
 <!-- # Internet Protocol. 0 - Both IPv4 and IPv6, 1 - Both, prefer IPv6 , 2 - IPv4 Only, 3 - IPv6 Only. Default is 2. -->
 <!-- # Number: 0, 1, 2, 3 -->
 <!-- # Mandatory -->
-<P1415>0</P1415>
+{if isset($grandstream_ipv_mode)}<P1415>{$grandstream_ipv_mode}</P1415>{else}<P1415>0</P1415>{/if}
 
 <!-- # IPv4 Address. 0 - DHCP, 1 - Static IP, 2 - PPPoE. Default is 0 -->
 <!-- # Number: 0, 1, 2 -->