diff --git a/modules/multicast/multicast.c b/modules/multicast/multicast.c
index af58c6d..4974b9d 100644
--- a/modules/multicast/multicast.c
+++ b/modules/multicast/multicast.c
@@ -724,19 +724,23 @@ static const struct cmd cmdv[] = {
 };
 
 
-static void ua_event_handler(struct ua *ua, enum ua_event ev,
-			     struct call *call, const char *prm, void *arg)
+static void event_handler(enum ua_event ev, struct bevent *event, void *arg)
 {
-	(void)ua;
-	(void)prm;
 	(void)arg;
+	const struct sip_msg *msg  = bevent_get_msg(event);
 
 	switch (ev) {
 
-	case UA_EVENT_CALL_ARRIVED:
-		if (mc.dnd)
-			call_set_rejected(call, 480,
-					  "Temporarily Unavailable");
+	case UA_EVENT_SIPSESS_CONN:
+		if (mc.dnd) {
+			(void)sip_treply(NULL, uag_sip(), msg, 480,
+					 "Temporarily Unavailable");
+			info("menu: incoming call from %r <%r> rejected: "
+			     "480 Temporarily Unavailable\n",
+			     &msg->from.dname, &msg->from.auri);
+			bevent_stop(event);
+			break;
+		}
 
 		break;
 
@@ -752,7 +756,7 @@ static int module_init(void)
 
 	err = module_read_config();
 	err |= cmd_register(baresip_commands(), cmdv, RE_ARRAY_SIZE(cmdv));
-	err |= uag_event_register(ua_event_handler, NULL);
+	err |= bevent_register(event_handler, NULL);
 	if (err)
 		return err;
 
@@ -771,7 +775,7 @@ static int module_close(void)
 	mcsender_stopall();
 	mcreceiver_unregall();
 
-	uag_event_unregister(ua_event_handler);
+	bevent_unregister(event_handler);
 	cmd_unregister(baresip_commands(), cmdv);
 
 	mcsource_terminate();