diff --git a/resources/templates/provision/cisco/spa501g/{$mac}.xml b/resources/templates/provision/cisco/spa501g/{$mac}.xml
index bd9b664329..8e156704b0 100644
--- a/resources/templates/provision/cisco/spa501g/{$mac}.xml
+++ b/resources/templates/provision/cisco/spa501g/{$mac}.xml
@@ -149,9 +149,9 @@
 
 <!-- SIP/NAT_Support_Parameters -->
 <Handle_VIA_received group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Handle_VIA_received>
-<Handle_VIA_rport group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Handle_VIA_rport>
-<Insert_VIA_received group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Insert_VIA_received>
-<Insert_VIA_rport group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Insert_VIA_rport>
+<Handle_VIA_rport group="SIP/NAT_Support_Parameters">{$cisco_handle_via_rport}</Handle_VIA_rport>
+<Insert_VIA_received group="SIP/NAT_Support_Parameters">No</Insert_VIA_received>
+<Insert_VIA_rport group="SIP/NAT_Support_Parameters">{$cisco_insert_via_rport}</Insert_VIA_rport>
 <Substitute_VIA_Addr group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Substitute_VIA_Addr>
 <Send_Resp_To_Src_Port group="SIP/NAT_Support_Parameters">{$cisco_spa_rport}</Send_Resp_To_Src_Port>
 <STUN_Enable group="SIP/NAT_Support_Parameters">No</STUN_Enable>
@@ -1492,4 +1492,4 @@
 <Unit_2_Key_{$row.device_key_id} group="Attendant_Console/Unit_2">{$row.device_key_value}</Unit_2_Key_{$row.device_key_id}>
 {/foreach}
 
-</flat-profile>
\ No newline at end of file
+</flat-profile>