diff --git a/openbsc/include/openbsc/osmo_bsc.h b/openbsc/include/openbsc/osmo_bsc.h
index 0bc39dc..1d216ac 100644
--- a/openbsc/include/openbsc/osmo_bsc.h
+++ b/openbsc/include/openbsc/osmo_bsc.h
@@ -5,6 +5,8 @@
 
 #include "bsc_api.h"
 
+#define BSS_SEND_USSD 1
+
 struct sccp_connection;
 struct osmo_msc_data;
 struct bsc_msc_connection;
@@ -39,6 +41,7 @@
 struct osmo_msc_data *bsc_find_msc(struct gsm_subscriber_connection *conn, struct msgb *);
 int bsc_scan_bts_msg(struct gsm_subscriber_connection *conn, struct msgb *msg);
 int bsc_scan_msc_msg(struct gsm_subscriber_connection *conn, struct msgb *msg);
+int bsc_send_welcome_ussd(struct gsm_subscriber_connection *conn);
 
 int bsc_handle_udt(struct osmo_msc_data *msc, struct msgb *msg, unsigned int length);
 int bsc_handle_dt1(struct osmo_bsc_sccp_con *conn, struct msgb *msg, unsigned int len);