diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index ed37428..92fde03 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -999,6 +999,29 @@
 	f_exp_err_rep(RSL_ERR_IE_CONTENT);
 }
 
+/* Send IPA DLCX to inactive lchan */
+function f_TC_ipa_dlcx_not_active(charstring id) runs on ConnHdlr {
+	timer T := 3.0;
+	RSL.send(ts_RSL_IPA_DLCX(g_chan_nr));
+	T.start;
+	alt {
+	[] RSL.receive(tr_RSL_IPA_DLCX_ACK(g_chan_nr, ?, ?)) {
+		setverdict(pass);
+		}
+	[] RSL.receive(tr_RSL_IPA_DLCX_NACK(g_chan_nr, ?)) {
+		setverdict(fail);
+		}
+	[] T.timeout {
+		setverdict(fail, "Timeout expecting RF_CHAN_REL_ACK");
+		}
+	}
+}
+testcase TC_ipa_dlcx_not_active() runs on test_CT {
+	var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
+	f_init(testcasename());
+	var ConnHdlr vc_conn := f_start_handler(refers(f_TC_ipa_dlcx_not_active), pars);
+	vc_conn.done;
+}
 
 /* TODO Areas:
 
@@ -1050,6 +1073,7 @@
 	execute( TC_rsl_protocol_error() );
 	execute( TC_rsl_mand_ie_error() );
 	execute( TC_rsl_ie_content_error() );
+	execute( TC_ipa_dlcx_not_active() );
 }