diff --git a/include/openbsc/Makefile.am b/include/openbsc/Makefile.am
index 2558d7c..995f02d 100644
--- a/include/openbsc/Makefile.am
+++ b/include/openbsc/Makefile.am
@@ -37,6 +37,7 @@
 	gprs_utils.h \
 	gsm_04_08.h \
 	gsm_04_11.h \
+	gsm_04_14.h \
 	gsm_04_80.h \
 	gsm_data.h \
 	gsm_data_shared.h \
diff --git a/include/openbsc/gsm_04_14.h b/include/openbsc/gsm_04_14.h
new file mode 100644
index 0000000..3cdbe04
--- /dev/null
+++ b/include/openbsc/gsm_04_14.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <osmocom/gsm/protocol/gsm_04_14.h>
+
+int gsm0414_tx_close_tch_loop_cmd(struct gsm_subscriber_connection *conn,
+				  enum gsm414_tch_loop_mode loop_mode);
+int gsm0414_tx_open_loop_cmd(struct gsm_subscriber_connection *conn);
+int gsm0414_tx_act_emmi_cmd(struct gsm_subscriber_connection *conn);
+int gsm0414_tx_test_interface(struct gsm_subscriber_connection *conn,
+			      uint8_t tested_devs);
+int gsm0414_tx_reset_ms_pos_store(struct gsm_subscriber_connection *conn,
+				  uint8_t technology);
+
+int gsm0414_rcv_test(struct gsm_subscriber_connection *conn,
+		     struct msgb *msg);
diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
index 16154ff..4726bbe 100644
--- a/src/libmsc/Makefile.am
+++ b/src/libmsc/Makefile.am
@@ -30,6 +30,7 @@
 	db.c \
 	gsm_04_08.c \
 	gsm_04_11.c \
+	gsm_04_14.c \
 	gsm_04_80.c \
 	gsm_subscriber.c \
 	iucs.c \
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c
index 58c5610..28cba5b 100644
--- a/src/libmsc/gsm_04_08.c
+++ b/src/libmsc/gsm_04_08.c
@@ -43,6 +43,7 @@
 #include <openbsc/gsm_04_11.h>
 #include <openbsc/gsm_04_08.h>
 #include <openbsc/gsm_04_80.h>
+#include <openbsc/gsm_04_14.h>
 #include <openbsc/abis_rsl.h>
 #include <openbsc/chan_alloc.h>
 #include <openbsc/paging.h>
@@ -3079,6 +3080,9 @@
 	case GSM48_PDISC_NC_SS:
 		rc = handle_rcv_ussd(conn, msg);
 		break;
+	case GSM48_PDISC_TEST:
+		rc = gsm0414_rcv_test(conn, msg);
+		break;
 	default:
 		LOGP(DRLL, LOGL_NOTICE, "Unknown "
 			"GSM 04.08 discriminator 0x%02x\n", pdisc);
diff --git a/src/libmsc/gsm_04_14.c b/src/libmsc/gsm_04_14.c
new file mode 100644
index 0000000..b529f4c
--- /dev/null
+++ b/src/libmsc/gsm_04_14.c
@@ -0,0 +1,133 @@
+/* GSM MS Testing  Layer 3 messages
+ * 3GPP TS 44.014 / GSM TS 04.14 */
+
+/* (C) 2017 by Harald Welte <laforge@gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "bscconfig.h"
+
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/gsm_04_08.h>
+#include <openbsc/bsc_api.h>
+#include <openbsc/msc_ifaces.h>
+
+#include <osmocom/gsm/gsm48.h>
+#include <osmocom/gsm/gsm_utils.h>
+#include <osmocom/gsm/protocol/gsm_04_14.h>
+#include <osmocom/gsm/tlv.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+
+static struct msgb *create_gsm0414_msg(uint8_t msg_type)
+{
+	struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.14");
+	struct gsm48_hdr *gh;
+
+	gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh) + 1);
+	gh->proto_discr = GSM48_PDISC_TEST;
+	gh->msg_type = msg_type;
+	return msg;
+}
+
+static int gsm0414_conn_sendmsg(struct gsm_subscriber_connection *conn, struct msgb *msg)
+{
+	return msc_tx_dtap(conn, msg);
+}
+
+static int gsm0414_tx_simple(struct gsm_subscriber_connection *conn, uint8_t msg_type)
+{
+	struct msgb *msg = create_gsm0414_msg(msg_type);
+
+	return gsm0414_conn_sendmsg(conn, msg);
+}
+
+
+/* Send a CLOSE_TCH_LOOOP_CMD according to Section 8.1 */
+int gsm0414_tx_close_tch_loop_cmd(struct gsm_subscriber_connection *conn,
+				  enum gsm414_tch_loop_mode loop_mode)
+{
+	struct msgb *msg = create_gsm0414_msg(GSM414_MT_CLOSE_TCH_LOOP_CMD);
+	uint8_t subch;
+
+	subch = (loop_mode << 1);
+	msgb_put_u8(msg, subch);
+
+	msg->lchan = conn->lchan;
+	return gsm0414_conn_sendmsg(conn, msg);
+}
+
+/* Send a OPEN_LOOP_CMD according to Section 8.3 */
+int gsm0414_tx_open_loop_cmd(struct gsm_subscriber_connection *conn)
+{
+	return gsm0414_tx_simple(conn, GSM414_MT_OPEN_LOOP_CMD);
+}
+
+/* Send a ACT_EMMI_CMD according to Section 8.8 */
+int gsm0414_tx_act_emmi_cmd(struct gsm_subscriber_connection *conn)
+{
+	return gsm0414_tx_simple(conn, GSM414_MT_ACT_EMMI_CMD);
+}
+
+/* Send a DEACT_EMMI_CMD according to Section 8.10 */
+int gsm0414_tx_deact_emmi_cmd(struct gsm_subscriber_connection *conn)
+{
+	return gsm0414_tx_simple(conn, GSM414_MT_DEACT_EMMI_CMD);
+}
+
+/* Send a TEST_INTERFACE according to Section 8.11 */
+int gsm0414_tx_test_interface(struct gsm_subscriber_connection *conn,
+			      uint8_t tested_devs)
+{
+	struct msgb *msg = create_gsm0414_msg(GSM414_MT_TEST_INTERFACE);
+	msgb_put_u8(msg, tested_devs);
+	return gsm0414_conn_sendmsg(conn, msg);
+}
+
+/* Send a RESET_MS_POSITION_STORED according to Section 8.11 */
+int gsm0414_tx_reset_ms_pos_store(struct gsm_subscriber_connection *conn,
+				  uint8_t technology)
+{
+	struct msgb *msg = create_gsm0414_msg(GSM414_MT_RESET_MS_POS_STORED);
+	msgb_put_u8(msg, technology);
+	return gsm0414_conn_sendmsg(conn, msg);
+}
+
+
+
+/* Entry point for incoming GSM48_PDISC_TEST received from MS */
+int gsm0414_rcv_test(struct gsm_subscriber_connection *conn,
+		     struct msgb *msg)
+{
+	struct gsm48_hdr *gh = msgb_l3(msg);
+
+	if (msgb_l3len(msg) < sizeof(*gh))
+		return -1;
+
+	LOGP(DMM, LOGL_NOTICE, "%s: Received TEST class message '%s'\n", "FIXME",
+		get_value_string(gsm414_msgt_names, gh->msg_type));
+
+	return 0;
+}