diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index aa50b8c..e18c35e 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -12,7 +12,8 @@
 		trau_frame.c trau_mux.c paging.c e1_config.c e1_input.c tlv_parser.c \
 		input/misdn.c input/ipaccess.c signal.c gsm_utils.c talloc.c \
 		talloc_ctx.c system_information.c bitvec.c rest_octets.c \
-		rtp_proxy.c statistics.c bts_siemens_bs11.c bts_ipaccess_nanobts.c
+		rtp_proxy.c statistics.c bts_siemens_bs11.c bts_ipaccess_nanobts.c \
+		bts_unknown.c
 
 libmsc_a_SOURCES = gsm_subscriber.c db.c telnet_interface.c \
 		mncc.c gsm_04_08.c gsm_04_11.c transaction.c \
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index e7db3c7..7755726 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -178,6 +178,7 @@
 	bsc_schedule_timer(&db_sync_timer, DB_SYNC_INTERVAL);
 }
 
+extern int bts_model_unknown_init(void);
 extern int bts_model_bs11_init(void);
 extern int bts_model_nanobts_init(void);
 
@@ -194,6 +195,7 @@
 	stderr_target = debug_target_create_stderr();
 	debug_add_target(stderr_target);
 
+	bts_model_unknown_init();
 	bts_model_bs11_init();
 	bts_model_nanobts_init();
 
diff --git a/openbsc/src/bts_unknown.c b/openbsc/src/bts_unknown.c
new file mode 100644
index 0000000..1e604a9
--- /dev/null
+++ b/openbsc/src/bts_unknown.c
@@ -0,0 +1,40 @@
+/* Generic BTS - VTY code tries to allocate this BTS before type is known */
+
+/* (C) 2010 by Daniel Willmann <daniel@totalueberwachung.de>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <sys/types.h>
+
+#include <openbsc/gsm_data.h>
+#include <openbsc/tlv.h>
+#include <openbsc/abis_nm.h>
+
+static struct gsm_bts_model model_unknown = {
+	.type = GSM_BTS_TYPE_UNKNOWN,
+	.nm_att_tlvdef = {
+		.def = {
+		},
+	},
+};
+
+int bts_model_unknown_init(void)
+{
+	return gsm_bts_model_register(&model_unknown);
+}