diff --git a/src/host/layer23/include/osmocom/telnet_interface.h b/src/host/layer23/include/osmocom/telnet_interface.h
index e5c1ce763..68157b093 100644
--- a/src/host/layer23/include/osmocom/telnet_interface.h
+++ b/src/host/layer23/include/osmocom/telnet_interface.h
@@ -39,6 +39,6 @@ extern int telnet_init(struct osmocom_ms *ms, int port);
 
 extern int ms_vty_init(struct osmocom_ms *ms);
 
-extern void vty_notify(struct osmocom_ms *ms, const char *fmt, ...);
+extern void vty_notify(struct osmocom_ms *ms, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
 
 #endif
diff --git a/src/host/layer23/src/gsm322.c b/src/host/layer23/src/gsm322.c
index a484bacde..059f32fc0 100644
--- a/src/host/layer23/src/gsm322.c
+++ b/src/host/layer23/src/gsm322.c
@@ -715,6 +715,7 @@ static int gsm322_a_indicate_selected(struct osmocom_ms *ms, struct msgb *msg)
 {
 	struct gsm322_plmn *plmn = &ms->plmn;
 
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Selected Network: %s, %s\n",
 		gsm_get_mcc(plmn->mcc), gsm_get_mnc(plmn->mcc, plmn->mnc));
 
@@ -1165,6 +1166,7 @@ static int gsm322_m_display_plmns(struct osmocom_ms *ms, struct msgb *msg)
 	/* generate list */
 	gsm322_sort_list(ms);
 
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Select from Network:\n");
 
 	llist_for_each_entry(temp, &plmn->sorted_plmn, entry)
@@ -1195,6 +1197,7 @@ static int gsm322_m_user_resel(struct osmocom_ms *ms, struct msgb *msg)
 	}
 
 	/* initiate search at cell selection */
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Searching Network, please wait...\n");
 	LOGP(DPLMN, LOGL_INFO, "User re-select, start PLMN search first.\n");
 
@@ -1252,6 +1255,7 @@ static int gsm322_m_switch_on(struct osmocom_ms *ms, struct msgb *msg)
 	/* initiate search at cell selection */
 	LOGP(DSUM, LOGL_INFO, "Search for network\n");
 	LOGP(DPLMN, LOGL_INFO, "Switch on, start PLMN search first.\n");
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Searching Network, please wait...\n");
 
 	nmsg = gsm322_msgb_alloc(GSM322_EVENT_PLMN_SEARCH_START);
@@ -1324,6 +1328,7 @@ static int gsm322_m_indicate_selected(struct osmocom_ms *ms, struct msgb *msg)
 {
 	struct gsm322_plmn *plmn = &ms->plmn;
 
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Selected Network: %s, %s\n",
 		gsm_get_mcc(plmn->mcc), gsm_get_mnc(plmn->mcc, plmn->mnc));
 
@@ -1365,6 +1370,7 @@ static int gsm322_m_choose_plmn(struct osmocom_ms *ms, struct msgb *msg)
 	plmn->mcc = gm->mcc;
 	plmn->mnc = gm->mnc;
 
+	vty_notify(ms, NULL);
 	vty_notify(ms, "Selected Network: %s, %s\n",
 		gsm_get_mcc(plmn->mcc), gsm_get_mnc(plmn->mcc, plmn->mnc));
 	LOGP(DPLMN, LOGL_INFO, "User selects PLMN. (mcc=%03d mnc=%02d  "
diff --git a/src/host/layer23/src/gsm48_mm.c b/src/host/layer23/src/gsm48_mm.c
index 22569bf9a..a428928de 100644
--- a/src/host/layer23/src/gsm48_mm.c
+++ b/src/host/layer23/src/gsm48_mm.c
@@ -3149,10 +3149,8 @@ static int gsm48_mm_abort_mm_con(struct osmocom_ms *ms, struct msgb *msg)
 	switch(rrh->cause) {
 	case RR_REL_CAUSE_NOT_AUTHORIZED:
 	case RR_REL_CAUSE_EMERGENCY_ONLY:
-		cause = 21;
-		break;
 	case RR_REL_CAUSE_TRY_LATER:
-		cause = 34;
+		cause = 21;
 		break;
 	case RR_REL_CAUSE_NORMAL:
 		cause = 16;
diff --git a/src/host/layer23/src/mnccms.c b/src/host/layer23/src/mnccms.c
index 2f2bd2803..e489c6610 100644
--- a/src/host/layer23/src/mnccms.c
+++ b/src/host/layer23/src/mnccms.c
@@ -30,6 +30,7 @@
 #include <osmocom/logging.h>
 #include <osmocom/osmocom_data.h>
 #include <osmocom/mncc.h>
+#include <osmocom/telnet_interface.h>
 
 void *l23_ctx;
 static int new_callref = 1;
@@ -121,38 +122,115 @@ int mncc_recv_mobile(struct osmocom_ms *ms, int msg_type, void *arg)
 
 	switch (msg_type) {
 	case MNCC_DISC_IND:
-		LOGP(DMNCC, LOGL_INFO, "Call has been disconnected\n");
+		vty_notify(ms, NULL);
+		switch (data->cause.value) {
+		case GSM48_CC_CAUSE_UNASSIGNED_NR:
+			vty_notify(ms, "Call: Number not assigned\n");
+			break;
+		case GSM48_CC_CAUSE_NO_ROUTE:
+			vty_notify(ms, "Call: Destination unreachable\n");
+			break;
+		case GSM48_CC_CAUSE_NORM_CALL_CLEAR:
+			vty_notify(ms, "Call: Remote hangs up\n");
+			break;
+		case GSM48_CC_CAUSE_USER_BUSY:
+			vty_notify(ms, "Call: Remote busy\n");
+			break;
+		case GSM48_CC_CAUSE_USER_NOTRESPOND:
+			vty_notify(ms, "Call: Remote not responding\n");
+			break;
+		case GSM48_CC_CAUSE_USER_ALERTING_NA:
+			vty_notify(ms, "Call: Remote not answering\n");
+			break;
+		case GSM48_CC_CAUSE_CALL_REJECTED:
+			vty_notify(ms, "Call has been rejected\n");
+			break;
+		case GSM48_CC_CAUSE_NUMBER_CHANGED:
+			vty_notify(ms, "Call: Number changed\n");
+			break;
+		case GSM48_CC_CAUSE_PRE_EMPTION:
+			vty_notify(ms, "Call: Cleared due to pre-emption\n");
+			break;
+		case GSM48_CC_CAUSE_DEST_OOO:
+			vty_notify(ms, "Call: Remote out of order\n");
+			break;
+		case GSM48_CC_CAUSE_INV_NR_FORMAT:
+			vty_notify(ms, "Call: Number invalid or imcomplete\n");
+			break;
+		case GSM48_CC_CAUSE_NO_CIRCUIT_CHAN:
+			vty_notify(ms, "Call: No channel available\n");
+			break;
+		case GSM48_CC_CAUSE_NETWORK_OOO:
+			vty_notify(ms, "Call: Network out of order\n");
+			break;
+		case GSM48_CC_CAUSE_TEMP_FAILURE:
+			vty_notify(ms, "Call: Temporary failure\n");
+			break;
+		case GSM48_CC_CAUSE_SWITCH_CONG:
+			vty_notify(ms, "Congestion\n");
+			break;
+		default:
+			vty_notify(ms, "Call has been disconnected\n");
+		}
+		LOGP(DMNCC, LOGL_INFO, "Call has been disconnected "
+			"(cause %d)\n", data->cause.value);
 		if ((data->fields & MNCC_F_PROGRESS)
-		 && data->progress.descr == 8)
+		 && data->progress.descr == 8) {
+			vty_notify(ms, "Please hang up!\n");
 		 	break;
+		}
 		free_call(call);
 		cause = GSM48_CC_CAUSE_NORM_CALL_CLEAR;
 		goto release;
 	case MNCC_REL_IND:
 	case MNCC_REL_CNF:
-		LOGP(DMNCC, LOGL_INFO, "Call has been released\n");
+		vty_notify(ms, NULL);
+		if (data->cause.value == GSM48_CC_CAUSE_CALL_REJECTED)
+			vty_notify(ms, "Call has been rejected\n");
+		else
+			vty_notify(ms, "Call has been released\n");
+		LOGP(DMNCC, LOGL_INFO, "Call has been released (cause %d)\n",
+			data->cause.value);
 		free_call(call);
 		break;
 	case MNCC_CALL_PROC_IND:
+		vty_notify(ms, NULL);
+		vty_notify(ms, "Call is proceeding\n");
 		LOGP(DMNCC, LOGL_INFO, "Call is proceeding\n");
 		break;
 	case MNCC_ALERT_IND:
+		vty_notify(ms, NULL);
+		vty_notify(ms, "Call is aleriting\n");
 		LOGP(DMNCC, LOGL_INFO, "Call is alerting\n");
 		break;
 	case MNCC_SETUP_CNF:
+		vty_notify(ms, NULL);
+		vty_notify(ms, "Call is answered\n");
 		LOGP(DMNCC, LOGL_INFO, "Call is answered\n");
 		break;
 	case MNCC_SETUP_IND:
+		vty_notify(ms, NULL);
 		if (!llist_empty(&call_list)) {
+			vty_notify(ms, "Incomming call rejected\n");
 			LOGP(DMNCC, LOGL_INFO, "Incomming call but busy\n");
 			cause = GSM48_CC_CAUSE_NORM_CALL_CLEAR;
 			goto release;
 		}
+		if (!data->calling.present || !data->calling.number[0])
+			vty_notify(ms, "Incomming call\n");
+		else if (data->calling.type == 1)
+			vty_notify(ms, "Incomming call from +%s\n",
+				data->calling.number);
+		else if (data->calling.type == 2)
+			vty_notify(ms, "Incomming call from 0-%s\n",
+				data->calling.number);
+		else
+			vty_notify(ms, "Incomming call from %s\n",
+				data->calling.number);
 		LOGP(DMNCC, LOGL_INFO, "Incomming call\n");
 		memset(&mncc, 0, sizeof(struct gsm_mncc));
 		mncc.callref = call->callref;
 		mncc_send(ms, MNCC_CALL_CONF_REQ, &mncc);
-		break;
 		LOGP(DMNCC, LOGL_INFO, "Ring!\n");
 		memset(&mncc, 0, sizeof(struct gsm_mncc));
 		mncc.callref = call->callref;
diff --git a/src/host/layer23/src/telnet_interface.c b/src/host/layer23/src/telnet_interface.c
index bec493cff..c7b06f72c 100644
--- a/src/host/layer23/src/telnet_interface.c
+++ b/src/host/layer23/src/telnet_interface.c
@@ -208,26 +208,33 @@ void vty_notify(struct osmocom_ms *ms, const char *fmt, ...)
 	struct telnet_connection *connection;
 	char buffer[1000];
 	va_list args;
+	struct vty *vty;
 
-	va_start(args, fmt);
-	vsnprintf(buffer, sizeof(buffer) - 1, fmt, args);
-	buffer[sizeof(buffer) - 1] = '\0';
-	va_end(args);
+	if (fmt) {
+		va_start(args, fmt);
+		vsnprintf(buffer, sizeof(buffer) - 1, fmt, args);
+		buffer[sizeof(buffer) - 1] = '\0';
+		va_end(args);
 
-	if (!buffer[0])
-		return;
+		if (!buffer[0])
+			return;
+	}
 
 	llist_for_each_entry(connection, &active_connections, entry) {
-		struct vty *vty = connection->vty;
-		if (vty) {
-			if (buffer[strlen(buffer) - 1] == '\n') {
-				buffer[strlen(buffer) - 1] = '\0';
-				vty_out(vty, "%% (MS %s) %s%s", ms->name, 
-					buffer, VTY_NEWLINE);
-				buffer[strlen(buffer)] = '\n';
-			} else
-				vty_out(vty, "%% (MS %s) %s", ms->name, buffer);
+		vty = connection->vty;
+		if (!vty)
+			continue;
+		if (!fmt) {
+			vty_out(vty, "%s%% (MS %s)%s", VTY_NEWLINE, ms->name,
+				VTY_NEWLINE);
+			continue;
 		}
+		if (buffer[strlen(buffer) - 1] == '\n') {
+			buffer[strlen(buffer) - 1] = '\0';
+			vty_out(vty, "%% %s%s", buffer, VTY_NEWLINE);
+			buffer[strlen(buffer)] = '\n';
+		} else
+			vty_out(vty, "%% %s", buffer);
 	}
 }