diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index c7b5a8f..b65d899 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -308,7 +308,10 @@
 
 /* Test behavior if MSC never answers to CR */
 testcase TC_chan_act_ack_est_ind_noreply() runs on test_CT {
+	var RslLinkId main_dcch := valueof(ts_RslLinkID_DCCH(0));
+	var IpaStreamId sid := IPAC_PROTO_RSL_TRX0;
 	var RSL_Message rx_rsl;
+	var ASP_RSL_Unitdata rx_rsl_ud;
 
 	f_init(1);
 	f_bssap_reset();
@@ -322,7 +325,15 @@
 	BSSAP.receive(tr_BSSAP_CONNECT_ind(?, ?, tr_BSSMAP_ComplL3(l3)));
 
 	/* expect BSC to disable the channel again if there's no response from MSC */
-	rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL), T3101_MAX);
+	/* MS waits 20s (T3210) at LU; 10s (T3230) at CM SERV REQ and 5s (T3220) AT detach */
+	IPA_RSL[0].clear;
+	alt {
+	[] IPA_RSL[0].receive(tr_ASP_RSL_UD(sid, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL))) -> value rx_rsl_ud { }
+	[] IPA_RSL[0].receive(tr_ASP_RSL_UD(sid, tr_RSL_REL_REQ(chan_nr, ?))) -> value rx_rsl_ud {
+		f_ipa_tx(0, ts_RSL_REL_CONF(chan_nr, main_dcch));
+		repeat;
+		}
+	}
 
 	setverdict(pass);
 }