diff --git a/bsc/BSC_Tests_ASCI.ttcn b/bsc/BSC_Tests_ASCI.ttcn
index c7e64f9e6..e72c0654d 100644
--- a/bsc/BSC_Tests_ASCI.ttcn
+++ b/bsc/BSC_Tests_ASCI.ttcn
@@ -254,6 +254,10 @@ private function f_tc_vgcs_vbs_setup(charstring id) runs on MSC_ConnHdlr {
  */
 
 private altstep as_eat_rsl_data() runs on MSC_ConnHdlr {
+	[] RSL.receive(tr_RSL_UNITDATA_REQ(g_chan_nr, ?, ?)) {
+		log("VGCS: Got RSL UNITDATA REQ on channel");
+		repeat;
+	}
 	[] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, ?)) {
 		log("VGCS: Got RSL DATA REQ on channel");
 		repeat;
@@ -338,12 +342,12 @@ private function f_tc_asci_assignment(charstring id) runs on MSC_ConnHdlr {
 		deactivate(eat_rsl_data);
 		return;
 		}
-	[] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O)) {
+	[] RSL.receive(tr_RSL_UNITDATA_REQ(g_chan_nr, ?, '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O)) {
 		log("VGCS: Got UPLINK FREE on channel");
 		COORD.send(COORD_VGCS_UPLINK_FREE);
 		repeat;
 		}
-	[] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, '062A'O)) {
+	[] RSL.receive(tr_RSL_UNITDATA_REQ(g_chan_nr, ?, '062A'O)) {
 		log("VGCS: Got UPLINK BUSY on channel");
 		COORD.send(COORD_VGCS_UPLINK_BUSY);
 		repeat;