diff --git a/ttcn/LibIms_PIXITS.ttcn b/ttcn/LibIms_PIXITS.ttcn
index ac258b6354ac2d99ce6dcb49749575cfb45ff90d..3d61329c57e413fcba569d758b009bbb2306ab23 100644
--- a/ttcn/LibIms_PIXITS.ttcn
+++ b/ttcn/LibIms_PIXITS.ttcn
@@ -312,6 +312,10 @@ group SUT_ICSCF {
 	/** @desc	charstring for SUT/I-CSCFdomain
 	*/
 	  modulepar charstring  PX_IMS_SUT_ICSCF_HOME_DOMAIN := "icscf.sut.net";
+	  
+    /** @desc	charstring for SUT/I-CSCF P_VisitedNetwork ID header (see RFC3455) 
+    */
+      modulepar charstring  PX_IMS_SUT_ICSCF_VisitedNetworkID := "Visited ETSI 1";
 } // end group SUT_ICSCF
  
 group SUT_AS {