diff --git a/resources/templates/provision/grandstream/gxp116x/{$mac}.xml b/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
index 82ff771ac4..9069b3272f 100644
--- a/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp116x/{$mac}.xml
@@ -554,7 +554,7 @@
 <!--  Internet Protocol. 0 - Prefer IPv4, 1 - Prefer IPv6. Default is 0 -->
 <!--  Number: 0, 1 -->
 <!--  Mandatory -->
-<P1415>0</P1415>
+{if isset($grandstream_ipv_mode)}<P1415>{$grandstream_ipv_mode}</P1415>{else}<P1415>0</P1415>{/if}
 
 <!--  IP Address Mode. 0 - DHCP, 1 - Static IP, 2 - PPPoE. Default is 0 -->
 <!--  Number: 0, 1, 2 -->