diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index db2e9ef..06f9ebe 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -373,7 +373,7 @@
 /* altstep for handling of MGCP media related commands. Activated by as_Media() to test
  * MGW level media handling */
 
-altstep as_Media_mgw(boolean norepeat := false) runs on MSC_ConnHdlr {
+altstep as_Media_mgw(boolean norepeat := false, boolean fail_on_dlcx := true) runs on MSC_ConnHdlr {
 	var MgcpCommand mgcp_cmd;
 	var template MgcpResponse mgcp_resp;
 	var MGCP_RecvFrom mrf;
@@ -383,6 +383,9 @@
 	var template MgcpMessage msg_mdcx := {
 		command := tr_MDCX
 	}
+	var template MgcpMessage msg_dlcx := {
+		command := tr_DLCX
+	}
 	var template MgcpMessage msg_resp;
 
 	[g_pars.aoip] MGCP.receive(tr_CRCX) -> value mgcp_cmd {
@@ -422,13 +425,21 @@
 			repeat;
 		}
 	}
+
+	[fail_on_dlcx and g_pars.aoip] MGCP.receive(tr_DLCX) {
+		setverdict(fail, "Unexpected DLCX received");
+	}
+
+	[fail_on_dlcx and not g_pars.aoip] MGCP_MULTI.receive(tr_MGCP_RecvFrom_any(msg_dlcx)) {
+		setverdict(fail, "Unexpected DLCX received");
+	}
 }
 
 /* Altsteps for handling of media related commands. Can be activated by a given
  * test case if it expects to see media related handling (i.e. voice calls) */
-altstep as_Media() runs on MSC_ConnHdlr {
+altstep as_Media(boolean fail_on_dlcx := true) runs on MSC_ConnHdlr {
 	[] as_Media_ipacc();
-	[] as_Media_mgw();
+	[] as_Media_mgw(fail_on_dlcx := fail_on_dlcx);
 }
 
 type port Coord_PT message