diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 4c182f8..4755989 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -109,4 +109,22 @@
 	}
 }
 
+template (value) PDU_ML3_MS_NW ts_RRM_ModeModifyAck(ChannelDescription2_V desc, ChannelMode_V mode) := {
+	discriminator := '0000'B, /* overwritten */
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		rrm := {
+			channelModeModifyAck := {
+				messageType := '00010111'B,
+				channelDescription := desc,
+				channelMode := mode,
+				extendedTSCSet := omit
+			}
+		}
+	}
+}
+
+
 }