diff --git a/library/RSL_Types.ttcn b/library/RSL_Types.ttcn
index f8b66c6..f26a1d8 100644
--- a/library/RSL_Types.ttcn
+++ b/library/RSL_Types.ttcn
@@ -332,6 +332,16 @@
 		ch_rate_type := t,
 		coding_alg_rate := alg
 	}
+	template RSL_IE_ChannelMode tr_RSL_ChanMode(template RSL_ChanRateType t,
+						    template RSL_SpeechAlgo alg) := {
+		len := ?,
+		reserved := '000000'B,
+		dtx_d := ?,
+		dtx_u := ?,
+		spd_ind := RSL_SPDI_SPEECH,
+		ch_rate_type := t,
+		coding_alg_rate := alg
+	}
 
 	/* 9.3.4 */
 	type record RSL_IE_BS_Power {