diff --git a/msc_tests/BSC_ConnectionHandler.ttcn b/msc_tests/BSC_ConnectionHandler.ttcn
index 15a460b..2d6036f 100644
--- a/msc_tests/BSC_ConnectionHandler.ttcn
+++ b/msc_tests/BSC_ConnectionHandler.ttcn
@@ -93,6 +93,13 @@
 	var octetstring l3_enc := enc_PDU_ML3_MS_NW(l3);
 	BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_peer, g_pars.sccp_addr_own,
 				     valueof(ts_BSSMAP_ComplL3(g_pars.cell_id, l3_enc))));
+	alt {
+	[] BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND) {}
+	[] BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND) {
+			setverdict(fail, "DISC.ind from SCCP");
+			self.stop;
+		}
+	}
 }
 
 /* helper function to fully establish a dedicated channel */