diff --git a/resources/templates/provision/polycom/5.x/{$mac}.cfg b/resources/templates/provision/polycom/5.x/{$mac}.cfg
index ba90f534fe..d5363856b9 100755
--- a/resources/templates/provision/polycom/5.x/{$mac}.cfg
+++ b/resources/templates/provision/polycom/5.x/{$mac}.cfg
@@ -145,6 +145,9 @@
 		diags.pcap.remote.enabled="0"
 	/>
 	<GENERAL
+		{if isset($polycom_nat_ip)}
+		nat.ip="{$polycom_nat_ip}"
+		{/if}
 		nat.keepalive.interval="30"
 		voIpProt.SIP.specialEvent.checkSync.alwaysReboot="1"
 		voIpProt.SIP.requestValidation.1.request="INVITE"