diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn
index 039a97d..8c9f63f 100644
--- a/msc/BSC_ConnectionHandler.ttcn
+++ b/msc/BSC_ConnectionHandler.ttcn
@@ -992,6 +992,7 @@
 	mo_call := false,
 	bearer_cap := valueof(ts_Bcap_voice),
 	emergency := false,
+	csd := false,
 	mncc_callref := omit,
 	mncc_bearer_cap := valueof(ts_MNCC_bcap_voice),
 	mncc_rtp_ip := "42.23.11.5",
@@ -1031,6 +1032,7 @@
 	mo_call := ?,
 	bearer_cap := ?,
 	emergency := ?,
+	csd := ?,
 	mncc_callref := *,
 	mncc_bearer_cap := ?,
 	mncc_rtp_ip := ?,