diff --git a/src/server/rspro_server.c b/src/server/rspro_server.c
index f4e09e6..61d699f 100644
--- a/src/server/rspro_server.c
+++ b/src/server/rspro_server.c
@@ -400,6 +400,24 @@
  * IPA RSPRO Server
  ***********************************************************************/
 
+struct rspro_client_conn *_client_conn_by_slot(struct rspro_server *srv, const struct client_slot *cslot)
+{
+	struct rspro_client_conn *conn;
+	llist_for_each_entry(conn, &srv->clients, list) {
+		if (client_slot_equals(&conn->client.slot, cslot))
+			return conn;
+	}
+	return NULL;
+}
+struct rspro_client_conn *client_conn_by_slot(struct rspro_server *srv, const struct client_slot *cslot)
+{
+	struct rspro_client_conn *conn;
+	pthread_rwlock_rdlock(&srv->rwlock);
+	conn = _client_conn_by_slot(srv, cslot);
+	pthread_rwlock_unlock(&srv->rwlock);
+	return conn;
+}
+
 struct rspro_client_conn *_bankd_conn_by_id(struct rspro_server *srv, uint16_t bank_id)
 {
 	struct rspro_client_conn *conn;
diff --git a/src/server/rspro_server.h b/src/server/rspro_server.h
index 1703cb5..af84c18 100644
--- a/src/server/rspro_server.h
+++ b/src/server/rspro_server.h
@@ -56,5 +56,7 @@
 void rspro_server_destroy(struct rspro_server *srv);
 int event_fd_cb(struct osmo_fd *ofd, unsigned int what);
 
+struct rspro_client_conn *_client_conn_by_slot(struct rspro_server *srv, const struct client_slot *cslot);
+struct rspro_client_conn *client_conn_by_slot(struct rspro_server *srv, const struct client_slot *cslot);
 struct rspro_client_conn *_bankd_conn_by_id(struct rspro_server *srv, uint16_t bank_id);
 struct rspro_client_conn *bankd_conn_by_id(struct rspro_server *srv, uint16_t bank_id);