diff --git a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
index 9b87af2693..49dc671776 100644
--- a/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxp2124/{$mac}.xml
@@ -18,9 +18,13 @@
     <!-- Secondary SIP Server -->
     <!-- String -->
     <P2312></P2312>
-    <!-- Outbound Proxy -->
-    <!-- String -->
-    <P48></P48>
+    <!--  Outbound Proxy -->
+     <!--  String -->
+    <P48>{$outbound_proxy_1}</P48>
+
+    <!--  Backup Outbound Proxy -->
+    <!--  String -->
+    <P2333>{$outbound_proxy_secondary_1}</P2333>
     <!-- SIP User ID -->
     <!-- String -->
     <P35>{$user_id_1}</P35>