diff --git a/ttcn/LibIms_Templates.ttcn b/ttcn/LibIms_Templates.ttcn
index f8a03092e2563f9689167708d81c979caf623fd4..088a2ff53ba0637d2e15c7e72994138c838187ef 100644
--- a/ttcn/LibIms_Templates.ttcn
+++ b/ttcn/LibIms_Templates.ttcn
@@ -1379,13 +1379,14 @@ group request_send {
 	  
     template BYE_Request m_BYE_Request_IMS
         ( SipUrl p_requestUri, CallId p_callId, CSeq p_cSeq, From p_from, To p_to,
-        Via p_via, template Route p_route)
+        Via p_via, template Route p_route, template RecordRoute p_recordRoute := omit)
         modifies m_BYE_Request_Base
         :=
         {
           msgHeader :=
           {
-            route := p_route 
+            route := p_route,
+            recordRoute := p_recordRoute //used in case of AS as TS - for ISC interface 
           }
         }