diff --git a/resources/install/scripts/app/xml_handler/index.lua b/resources/install/scripts/app/xml_handler/index.lua
index 5bc9b52be7..c95c4f22ad 100644
--- a/resources/install/scripts/app/xml_handler/index.lua
+++ b/resources/install/scripts/app/xml_handler/index.lua
@@ -66,6 +66,9 @@
 	if (domain_name == nil) then
 		domain_name = params:getHeader("variable_domain_name");
 	end
+        if (domain_name == nil) then
+                domain_name = params:getHeader("variable_sip_from_host");
+        end
 	purpose   = params:getHeader("purpose");
 	profile   = params:getHeader("profile");
 	key    = params:getHeader("key");
@@ -100,4 +103,4 @@
 	end
 	if (XML_REQUEST["section"] == "languages") then
 		dofile(scripts_dir.."/app/xml_handler/resources/scripts/languages/languages.lua");
-	end
\ No newline at end of file
+	end