diff --git a/stp/STP_Tests_M3UA.ttcn b/stp/STP_Tests_M3UA.ttcn
index a44e6ad..f6fa625 100644
--- a/stp/STP_Tests_M3UA.ttcn
+++ b/stp/STP_Tests_M3UA.ttcn
@@ -261,6 +261,25 @@
 	f_clear_m3ua();
 }
 
+/* test whether the STP accepts M3UA DATA without Routing Context IE */
+testcase TC_act_rctx_data_no_rctx() runs on RAW_M3UA_CT {
+	var OCT4 rctx_sender := int2oct(1023, 4);
+	var OCT4 pc_sender := int2oct(23, 4);
+	var OCT4 rctx_receiver := int2oct(1042, 4);
+	var OCT4 pc_receiver := int2oct(42, 4);
+
+	f_init_m3ua();
+	/* bring up the sender specifying a routing context */
+
+	f_M3UA_asp_up_act(0, rctx := rctx_sender);
+	f_M3UA_asp_up_act(1);
+
+	/* check if DATA is accepted without Routing Context IE */
+	f_test_traffic(0, omit, pc_sender, 1, rctx_receiver, pc_receiver);
+
+	f_clear_m3ua();
+}
+
 /* Test if traffic is routed from idx_tx/pc_tx to idx_rx/pc_rx */
 private function f_test_traffic(integer idx_tx, template (omit) OCT4 rctx_sender, OCT4 pc_tx,
 				integer idx_rx, template (omit) OCT4 rctx_receiver, OCT4 pc_rx,
@@ -623,6 +642,7 @@
 	execute( TC_tmt_override() );
 	execute( TC_tmt_loadshare() );
 	execute( TC_tmt_broadcast() );
+	execute( TC_act_rctx_data_no_rctx() );
 
 	/* M3UA RKM tests */
 	execute( TC_rkm_reg_static_notpermitted() );