diff --git a/openbsc/src/libmsc/vty_interface_layer3.c b/openbsc/src/libmsc/vty_interface_layer3.c
index 1d3ffe9..cdda7e4 100644
--- a/openbsc/src/libmsc/vty_interface_layer3.c
+++ b/openbsc/src/libmsc/vty_interface_layer3.c
@@ -45,6 +45,7 @@
 #include <openbsc/gsm_04_80.h>
 #include <openbsc/chan_alloc.h>
 #include <openbsc/sms_queue.h>
+#include <openbsc/mncc_int.h>
 
 extern struct gsm_network *gsmnet_from_vty(struct vty *v);
 
@@ -762,6 +763,69 @@
 	return CMD_SUCCESS;
 }
 
+
+DEFUN(cfg_mncc_int, cfg_mncc_int_cmd,
+      "mncc-int", "Configure internal MNCC handler")
+{
+	vty->node = MNCC_INT_NODE;
+
+	return CMD_SUCCESS;
+}
+
+static struct cmd_node mncc_int_node = {
+	MNCC_INT_NODE,
+	"%s(mncc-int)#",
+	1,
+};
+
+static const struct value_string tchf_codec_names[] = {
+	{ GSM48_CMODE_SPEECH_V1,	"fr" },
+	{ GSM48_CMODE_SPEECH_EFR,	"efr" },
+	{ GSM48_CMODE_SPEECH_AMR,	"amr" },
+	{ 0, NULL }
+};
+
+static const struct value_string tchh_codec_names[] = {
+	{ GSM48_CMODE_SPEECH_V1,	"hr" },
+	{ GSM48_CMODE_SPEECH_AMR,	"amr" },
+	{ 0, NULL }
+};
+
+static int config_write_mncc_int(struct vty *vty)
+{
+	vty_out(vty, "mncc-int%s", VTY_NEWLINE);
+	vty_out(vty, " default-codec tch-f %s%s",
+		get_value_string(tchf_codec_names, mncc_int.def_codec[0]),
+		VTY_NEWLINE);
+	vty_out(vty, " default-codec tch-h %s%s",
+		get_value_string(tchh_codec_names, mncc_int.def_codec[1]),
+		VTY_NEWLINE);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(mnccint_def_codec_f,
+      mnccint_def_codec_f_cmd,
+      "default-codec tch-f (fr|efr|amr)",
+      "Set default codec\n" "Codec for TCH/F\n"
+      "Full-Rate\n" "Enhanced Full-Rate\n" "Adaptive Multi-Rate\n")
+{
+	mncc_int.def_codec[0] = get_string_value(tchf_codec_names, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(mnccint_def_codec_h,
+      mnccint_def_codec_h_cmd,
+      "default-codec tch-h (hr|amr)",
+      "Set default codec\n" "Codec for TCH/H\n"
+      "Half-Rate\n" "Adaptive Multi-Rate\n")
+{
+	mncc_int.def_codec[1] = get_string_value(tchh_codec_names, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
 int bsc_vty_init_extra(void)
 {
 	osmo_signal_register_handler(SS_SCALL, scall_cbfn, NULL);
@@ -794,5 +858,11 @@
 	install_element(ENABLE_NODE, &smsqueue_fail_cmd);
 	install_element(ENABLE_NODE, &subscriber_send_pending_sms_cmd);
 
+	install_element(CONFIG_NODE, &cfg_mncc_int_cmd);
+	install_node(&mncc_int_node, config_write_mncc_int);
+	install_default(MNCC_INT_NODE);
+	install_element(MNCC_INT_NODE, &mnccint_def_codec_f_cmd);
+	install_element(MNCC_INT_NODE, &mnccint_def_codec_h_cmd);
+
 	return 0;
 }