diff --git a/include/mISDN/mISDNif.h b/include/mISDN/mISDNif.h
index ad9a8fe..44680c7 100644
--- a/include/mISDN/mISDNif.h
+++ b/include/mISDN/mISDNif.h
@@ -38,7 +38,7 @@
  */
 #define	MISDN_MAJOR_VERSION	1
 #define	MISDN_MINOR_VERSION	1
-#define MISDN_RELEASE		24
+#define MISDN_RELEASE		26
 
 /* primitives for information exchange
  * generell format
@@ -105,7 +105,7 @@
 #define DL_UNITDATA_IND		0x3108
 #define DL_INFORMATION_IND	0x0008
 
-/* intern layer 2 managment */
+/* intern layer 2 management */
 #define MDL_ASSIGN_REQ		0x1804
 #define MDL_ASSIGN_IND		0x1904
 #define MDL_REMOVE_REQ		0x1A04
@@ -116,6 +116,11 @@
 #define MDL_ERROR_IND		0x1F04
 #define MDL_ERROR_RSP		0x5F04
 
+/* intern layer 2 */
+#define DL_TIMER200_IND		0x7004
+#define DL_TIMER203_IND		0x7304
+#define DL_INTERN_MSG		0x7804
+
 /* DL_INFORMATION_IND types */
 #define DL_INFO_L2_CONNECT	0x0001
 #define DL_INFO_L2_REMOVED	0x0002
diff --git a/lib/q931.c b/lib/q931.c
index 253e18c..163dd0b 100644
--- a/lib/q931.c
+++ b/lib/q931.c
@@ -1100,6 +1100,11 @@ static const struct _cmdtab {
 	{MDL_ERROR_IND		, "MDL_ERROR_IND"},
 	{MDL_ERROR_RSP		, "MDL_ERROR_RSP"},
 
+/* intern layer 2 */
+	{DL_TIMER200_IND	, "DL_TIMER200_IND"},
+	{DL_TIMER203_IND	, "DL_TIMER203_IND"},
+	{DL_INTERN_MSG		, "DL_INTERN_MSG"},
+
 /* L3 timer */
 	{CC_T301		, "Timer 301"},
 	{CC_T302		, "Timer 302"},