diff --git a/library/GTP_Templates.ttcn b/library/GTP_Templates.ttcn
index 30e42e6..3788725 100644
--- a/library/GTP_Templates.ttcn
+++ b/library/GTP_Templates.ttcn
@@ -19,6 +19,37 @@
 	import from IPCP_Types all;
 	import from GSM_Types all; // RoutingAreaIdentification, CellIdentity
 
+	template (present) OCT1 gtp1_requests := (
+		'10'O, /* createPDPContextRequest */
+		'12'O, /* updatePDPContextRequest */
+		'14'O, /*  */
+		'16'O, /* deletePDPContextRequest */
+		'1B'O, /* pdu_NotificationRequest */
+		'1D'O, /* pdu_NotificationRejectRequest */
+		'1F'O, /* supportedExtensionHeadersNotification */
+		'20'O, /* sendRouteingInformationForGPRSRequest */
+		'22'O, /* failureReportRequest */
+		'24'O, /* noteMS_GPRSPresentRequest */
+		'30'O, /* identificationRequest */
+		'32'O, /* sgsn_ContextRequest */
+		'35'O, /* forwardRelocationRequest */
+		'38'O, /* relocationCancelRequest */
+		'3A'O, /* forwardSRNSContext */
+		'3D'O, /* uERegistrationQueryRequest */
+		'46'O, /* ranInformationRelay */
+		'60'O, /* mBMSNotificationRequest */
+		'62'O, /* mBMSNotificationRejectRequest */
+		'64'O, /* createMBMSContextRequest */
+		'66'O, /* updateMBMSContextRequest */
+		'68'O, /* deleteMBMSContextRequest */
+		'70'O, /* mBMSRegistrationRequest */
+		'72'O, /* mBMSDeRegistrationRequest */
+		'74'O, /* mBMSSessionStartRequest */
+		'76'O, /* mBMSSessionStopRequest */
+		'78'O, /* mBMSSessionUpdateRequest */
+		'80'O /* mS_InfoChangeNotificationRequest */
+	);
+
 	type record GTP_CellId {
 		RoutingAreaIdentification	ra_id,
 		CellIdentity			cell_id