diff --git a/include/osmocom/msc/ran_conn.h b/include/osmocom/msc/ran_conn.h
index d134c30..bec7201 100644
--- a/include/osmocom/msc/ran_conn.h
+++ b/include/osmocom/msc/ran_conn.h
@@ -178,8 +178,10 @@
 
 struct ran_conn *ran_conn_alloc(struct gsm_network *network, enum osmo_rat_type via_ran, uint16_t lac);
 
-void ran_conn_update_id(struct ran_conn *conn, enum complete_layer3_type from, const char *id);
-char *ran_conn_get_conn_id(struct ran_conn *conn);
+void ran_conn_update_id_from_mi(struct ran_conn *conn, const uint8_t *mi, uint8_t mi_len);
+void ran_conn_update_id(struct ran_conn *conn);
+const char *ran_conn_get_conn_id(struct ran_conn *conn);
+void ran_conn_update_id_for_vsub(struct vlr_subscr *for_vsub);
 
 void ran_conn_complete_layer_3(struct ran_conn *conn);