diff --git a/library/RSL_Types.ttcn b/library/RSL_Types.ttcn
index 3804d40..e1f6af0 100644
--- a/library/RSL_Types.ttcn
+++ b/library/RSL_Types.ttcn
@@ -1309,6 +1309,15 @@
 		}
 	}
 
+	/* 8.4.7 BTS -> BSC */
+	template (value) RSL_Message ts_RSL_HANDO_DET(template (value) RslChannelNr chan_nr) := {
+		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_DCHAN, false),
+		msg_type := RSL_MT_HANDO_DET,
+		ies := {
+			t_RSL_IE(RSL_IE_CHAN_NR, RSL_IE_Body:{chan_nr := chan_nr})
+		}
+	}
+
 
 	/* COMMON CHANNEL MANAGEMENT MESSAGES */