diff --git a/library/Osmocom_Gb_Types.ttcn b/library/Osmocom_Gb_Types.ttcn
index f97b9b0..9065097 100644
--- a/library/Osmocom_Gb_Types.ttcn
+++ b/library/Osmocom_Gb_Types.ttcn
@@ -531,6 +531,10 @@
 		var template ListofIP4Elements r;
 		if (istemplatekind(elem, "omit")) {
 			return omit;
+		} else if (istemplatekind(elem, "*")) {
+			return *;
+		} else if (istemplatekind(elem, "?")) {
+			return ?;
 		} else {
 			r := {
 				iEI := '05'O,
@@ -568,6 +572,8 @@
 			return omit;
 		} else if (istemplatekind(elem, "*")) {
 			return *;
+		} else if (istemplatekind(elem, "?")) {
+			return ?;
 		} else {
 			r := {
 				iEI := '06'O,
@@ -722,6 +728,14 @@
 		}
 	}
 
+	template PDU_NS tr_SNS(template Nsei nsei) := ( tr_SNS_SIZE(nsei),
+							tr_SNS_SIZE_ACK(nsei, *),
+							tr_SNS_CONFIG(nsei, ?, *, *),
+							tr_SNS_CONFIG_ACK(nsei, *),
+							tr_SNS_ADD(nsei, ?, *, *),
+							tr_SNS_DEL(nsei, ?, *, *),
+							tr_SNS_CHG_WEIGHT(nsei, ?, *, *),
+							tr_SNS_ACK(nsei, ?, *, *, *) )