diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index c2ea258..0c71581 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -916,12 +916,12 @@
 	timer T := 10.0;
 
 	clnt.id := "IPA" & int2str(i) & "-RSL";
-	clnt.vc_IPA := IPA_Emulation_CT.create(clnt.id & "-IPA");
+	clnt.vc_IPA := IPA_Emulation_CT.create(clnt.id & "-IPA") alive;
 	clnt.ccm_pars := c_IPA_default_ccm_pars;
 	clnt.ccm_pars.name := "Osmocom TTCN-3 BTS Simulator";
 	clnt.ccm_pars.unit_id := int2str(1234+i) & "/0/0";
 	if (handler_mode) {
-		clnt.vc_RSL := RSL_Emulation_CT.create(clnt.id & "-RSL");
+		clnt.vc_RSL := RSL_Emulation_CT.create(clnt.id & "-RSL") alive;
 		connect(clnt.vc_RSL:CCHAN_PT, self:RSL_CCHAN[i]);
 	}
 
@@ -1024,7 +1024,7 @@
 		multi_conn_mode := (mp_bssap_cfg[0].transport == BSSAP_TRANSPORT_SCCPlite_SERVER)
 	};
 
-	vc_MGCP := MGCP_Emulation_CT.create(id);
+	vc_MGCP := MGCP_Emulation_CT.create(id) alive;
 	vc_MGCP.start(MGCP_Emulation.main(ops, mgcp_pars, id));
 }
 
@@ -3569,7 +3569,7 @@
 	timer T := 10.0;
 
 	bts[0].rsl.id := "IPA-0-RSL";
-	bts[0].rsl.vc_IPA := IPA_Emulation_CT.create(bts[0].rsl.id & "-IPA");
+	bts[0].rsl.vc_IPA := IPA_Emulation_CT.create(bts[0].rsl.id & "-IPA") alive;
 	bts[0].rsl.ccm_pars := c_IPA_default_ccm_pars;
 	bts[0].rsl.ccm_pars.name := "Osmocom TTCN-3 BTS Simulator";
 	bts[0].rsl.ccm_pars.unit_id := "99/0/0"; /* value which is unknown at BTS */
diff --git a/gbproxy/GBProxy_Tests.ttcn b/gbproxy/GBProxy_Tests.ttcn
index ddf98a9..3f822c2 100644
--- a/gbproxy/GBProxy_Tests.ttcn
+++ b/gbproxy/GBProxy_Tests.ttcn
@@ -447,8 +447,8 @@
 private function f_init_gb_pcu(inout GbInstance gb, charstring id, integer offset) runs on test_CT {
 	var charstring ns_id := id & "-NS(PCU[" & int2str(offset) & "])";
 	var charstring bssgp_id := id & "-BSSGP(PCU[" & int2str(offset) & "])";
-	gb.vc_NS := NS_CT.create(ns_id);
-	gb.vc_BSSGP := BSSGP_CT.create(bssgp_id);
+	gb.vc_NS := NS_CT.create(ns_id) alive;
+	gb.vc_BSSGP := BSSGP_CT.create(bssgp_id) alive;
 	/* connect lower end of BSSGP emulation with NS upper port */
 	connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP);
 
@@ -470,8 +470,8 @@
 private function f_init_gb_sgsn(inout GbInstance gb, charstring id, integer offset) runs on test_CT {
 	var charstring ns_id := id & "-NS(SGSN[" & int2str(offset) & "])";
 	var charstring bssgp_id := id & "-BSSGP(SGSN[" & int2str(offset) & "])";
-	gb.vc_NS := NS_CT.create(ns_id);
-	gb.vc_BSSGP := BSSGP_CT.create(bssgp_id);
+	gb.vc_NS := NS_CT.create(ns_id) alive;
+	gb.vc_BSSGP := BSSGP_CT.create(bssgp_id) alive;
 	/* connect lower end of BSSGP emulation with NS upper port */
 	connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP);
 
diff --git a/library/BSSAP_LE_Adapter.ttcn b/library/BSSAP_LE_Adapter.ttcn
index dba8841..256d8fa 100644
--- a/library/BSSAP_LE_Adapter.ttcn
+++ b/library/BSSAP_LE_Adapter.ttcn
@@ -85,13 +85,13 @@
 	ops.sccp_addr_peer := ba.sccp_addr_peer;
 
 	/* create components */
-	ba.vc_SCCP := SCCP_CT.create(id & "-SCCP");
+	ba.vc_SCCP := SCCP_CT.create(id & "-SCCP") alive;
 	if (isvalue(ops)) {
-		ba.vc_BSSAP_LE := BSSAP_LE_Emulation_CT.create(id & "-BSSAP_LE");
+		ba.vc_BSSAP_LE := BSSAP_LE_Emulation_CT.create(id & "-BSSAP_LE") alive;
 	} else {
 		ba.vc_BSSAP_LE := null;
 	}
-	ba.vc_M3UA := M3UA_CT.create(id & "-M3UA");
+	ba.vc_M3UA := M3UA_CT.create(id & "-M3UA") alive;
 	map(ba.vc_M3UA:SCTP_PORT, system:sctp);
 	/* connect MTP3 service provider (M3UA) to lower side of SCCP */
 	connect(ba.vc_M3UA:MTP3_SP_PORT, ba.vc_SCCP:MTP3_SCCP_PORT);