diff --git a/library/RSL_Types.ttcn b/library/RSL_Types.ttcn
index ba467c6..79f5920 100644
--- a/library/RSL_Types.ttcn
+++ b/library/RSL_Types.ttcn
@@ -1409,6 +1409,15 @@
 		}
 	}
 
+	template RSL_Message ts_RSL_IPA_DLCX(RslChannelNr chan_nr,
+					     template (omit) uint16_t ipa_conn_id := omit) := {
+		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_IPACCESS, false),
+		msg_type := RSL_MT_IPAC_DLCX,
+		ies := {
+			t_RSL_IE(RSL_IE_CHAN_NR, RSL_IE_Body:{chan_nr := chan_nr})
+			/* FIXME: optional conn_id */
+		}
+	}
 	template RSL_Message tr_RSL_IPA_DLCX(template RslChannelNr chan_nr,
 					     template uint16_t ipa_conn_id := omit) := {
 		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_IPACCESS, false),
@@ -1430,6 +1439,19 @@
 			t_RSL_IE(RSL_IE_IPAC_CONN_STAT, RSL_IE_Body:{ipa_stats := stats})
 		}
 	}
+	template RSL_Message tr_RSL_IPA_DLCX_ACK(template RslChannelNr chan_nr,
+						 template uint16_t ipa_conn_id,
+						 template RSL_IE_IPA_ConnectionStats stats) := {
+		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_IPACCESS, false),
+		msg_type := RSL_MT_IPAC_DLCX_ACK,
+		ies := {
+			tr_RSL_IE(RSL_IE_Body:{chan_nr := chan_nr}),
+			tr_RSL_IE(RSL_IE_Body:{ipa_conn_id := ipa_conn_id}),
+			tr_RSL_IE(RSL_IE_Body:{ipa_stats := stats})
+		}
+	}
+
+
 
 	template RSL_Message ts_RSL_IPA_DLCX_NACK(RslChannelNr chan_nr, RSL_Cause cause,
 						  template uint16_t ipa_conn_id) := {
@@ -1442,6 +1464,18 @@
 			t_RSL_IE(RSL_IE_CAUSE, RSL_IE_Body:{cause := ts_RSL_IE_Cause(cause)})
 		}
 	}
+	template RSL_Message tr_RSL_IPA_DLCX_NACK(template RslChannelNr chan_nr,
+						  template RSL_Cause cause) := {
+		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_IPACCESS, false),
+		msg_type := RSL_MT_IPAC_DLCX_NACK,
+		ies := {
+			tr_RSL_IE(RSL_IE_Body:{chan_nr := chan_nr}),
+			/* optional connection ID */
+			*,
+			tr_RSL_IE(RSL_IE_Body:{cause := tr_RSL_IE_Cause(cause)})
+		}
+	}
+
 
 	template RSL_Message tr_RSL_IPA_PDCH_ACT(template RslChannelNr chan_nr) := {
 		msg_disc := ts_RSL_MsgDisc(RSL_MDISC_IPACCESS, false),