diff --git a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
index 4bf59190a5..49648d7b38 100644
--- a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
@@ -451,9 +451,13 @@
     <!-- Secondary SIP Server -->
     <!-- String -->
     <P2412></P2412>
-    <!-- Outbound Proxy -->
-    <!-- String -->
-    <P403>{$outbound_proxy_2}</P403>
+    <!--  Outbound Proxy -->
+    <!--  String -->
+     <P403>{$outbound_proxy_2}</P403>
+
+    <!--  Backup Outbound Proxy -->
+    <!--  String -->
+    <P2433>{$outbound_proxy_secondary_2}</P2433>
     <!-- SIP User ID -->
     <!-- String -->
     <P404>{$user_id_2}</P404>
@@ -879,9 +883,13 @@
     <!-- Secondary SIP Server -->
     <!-- String -->
     <P2512></P2512>
-    <!-- Outbound Proxy -->
-    <!-- String -->
+    <!--  Outbound Proxy -->
+    <!--  String -->
     <P503>{$outbound_proxy_3}</P503>
+
+    <!--  Backup Outbound Proxy -->
+    <!--  String -->
+    <P2533>{$outbound_proxy_secondary_3}</P2533>
     <!-- SIP User ID -->
     <!-- String -->
     <P504>{$user_id_3}</P504>
@@ -1306,9 +1314,13 @@
     <!-- Secondary SIP Server -->
     <!-- String -->
     <P2612></P2612>
-    <!-- Outbound Proxy -->
-    <!-- String -->
+    <!--  Outbound Proxy -->
+    <!--  String -->
     <P603>{$outbound_proxy_4}</P603>
+
+    <!--  Backup Outbound Proxy -->
+    <!--  String -->
+    <P2633>{$outbound_proxy_secondary_4}</P2633>
     <!-- SIP User ID -->
     <!-- String -->
     <P604>{$user_id_4}</P604>