diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn
index cf4e8467a..2f270ca95 100644
--- a/msc/BSC_ConnectionHandler.ttcn
+++ b/msc/BSC_ConnectionHandler.ttcn
@@ -63,11 +63,18 @@ import from SGsAP_Emulation all;
 
 import from TCCConversion_Functions { function f_strstr };
 
+type port BSC_ConnHdlr_Coord_PT message
+{
+	inout charstring, CallParameters;
+} with { extension "internal" };
+
+
 /* this component represents a single subscriber connection */
 type component BSC_ConnHdlr extends RAN_ConnHdlr, MNCC_ConnHdlr, GSUP_ConnHdlr, MGCP_ConnHdlr, SMPP_ConnHdlr, CTRL_Adapter_CT, SGsAP_ConnHdlr {
 	var BSC_ConnHdlrPars g_pars;
 	timer g_Tguard := 60.0;
 	port TELNETasp_PT MSCVTY;
+	port BSC_ConnHdlr_Coord_PT COORD;
 }
 
 type record BSC_ConnHdlrNetworkPars {
@@ -959,6 +966,35 @@ template (value) CallParameters t_CallParams(hexstring called := '12345'H, integ
 	got_osmux_count := 0
 };
 
+template CallParameters tr_CallParams := {
+	called_party := ?,
+	transaction_id := ?,
+	mo_call := ?,
+	bearer_cap := ?,
+	emergency := ?,
+	mncc_callref := *,
+	mncc_bearer_cap := ?,
+	mncc_rtp_ip := ?,
+	mncc_rtp_port := ?,
+	bss_rtp_ip := ?,
+	bss_rtp_port := ?,
+	mss_rtp_ip := *,
+	mss_rtp_port := *,
+	got_crcx_count := ?,
+	mgw_conn_1 := ?,
+	mgw_conn_2 := ?,
+	rtp_payload_type := ?,
+	rtp_sdp_format := ?,
+	mgw_drop_dlcx := ?,
+	stop_after_cc_setup := ?,
+	ran_clear_when_alerting := ?,
+	expect_release := ?,
+	mgcp_call_id := *,
+	mgcp_ep := ?,
+	use_osmux := ?,
+	got_osmux_count := ?
+};
+
 /* Allocate a call reference and send SETUP via MNCC to MSC */
 function f_mt_call_initate(inout CallParameters cpars)
 runs on BSC_ConnHdlr {