diff --git a/tests/sms/sms_test.c b/tests/sms/sms_test.c
new file mode 100644
index 0000000..f5183d5
--- /dev/null
+++ b/tests/sms/sms_test.c
@@ -0,0 +1,47 @@
+/*
+ * (C) 2008 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <osmocore/msgb.h>
+#include <osmocore/gsm_utils.h>
+
+int main(int argc, char** argv)
+{
+	printf("SMS testing\n");
+	struct msgb *msg;
+	uint8_t *sms;
+	uint8_t i;
+
+        /* test 7-bit coding/decoding */
+	const char *input = "test text";
+	uint8_t length;
+	uint8_t coded[256];
+	char result[256];
+
+	length = gsm_7bit_encode(coded, input);
+	gsm_7bit_decode(result, coded, length);
+	if (strcmp(result, input) != 0) {
+		printf("7 Bit coding failed... life sucks\n");
+		printf("Wanted: '%s' got '%s'\n", input, result);
+	}
+}