diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 06f9ebe..d07c912 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -318,7 +318,7 @@
 						int2str(mgcp_conn.sample_rate))),
 			valueof(ts_SDP_ptime(mgcp_conn.ptime)) } ));
 	var template MgcpResponse mgcp_resp;
-	if (g_pars.use_osmux and f_MgcpCmd_contains_par(mgcp_cmd, "X-OSMUX")) {
+	if (g_pars.use_osmux_cn and f_MgcpCmd_contains_par(mgcp_cmd, "X-OSMUX")) {
 		osmux_cid := f_MgcpCmd_extract_osmux_cid(mgcp_cmd);
 		mgcp_resp := ts_CRCX_ACK_osmux(mgcp_cmd.line.trans_id, mgcp_conn.conn_id, osmux_cid, sdp);
 	} else {
@@ -674,7 +674,7 @@
 	uint5_t 	exp_ms_power_level,
 	boolean         exp_ms_power_params,
 	boolean		aoip,
-	boolean		use_osmux,
+	boolean		use_osmux_cn,
 	charstring	host_aoip_tla,
 	TestHdlrParamsMSCPool mscpool,
 	boolean		media_mgw_offer_ipv6,
@@ -712,7 +712,7 @@
 	exp_ms_power_level := 7, /* calculated from osmo-bsc.cfg "ms max power" */
 	exp_ms_power_params := false,
 	aoip := true,
-	use_osmux := false,
+	use_osmux_cn := false,
 	host_aoip_tla := "1.2.3.4",
 	mscpool := {
 		bssap_idx := 0,
@@ -1506,7 +1506,7 @@
 		var MgcpEndpoint ep := int2str(cic) & "@mgw"; /* 1: matches value configured in BSC_Tests.ttcn pass in AssignReq */
 		var MgcpCallId call_id := '51234'H;
 		var SDP_attribute_list attributes := { valueof(ts_SDP_ptime(20)) };
-		if (g_pars.use_osmux) {
+		if (g_pars.use_osmux_cn) {
 			cmd := ts_CRCX_osmux(get_next_trans_id(), ep, "sendrecv", call_id, cic);
 			resp := tr_CRCX_ACK_osmux;
 		} else {