Slow down the registrations to space them out

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5154 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -10128,9 +10128,12 @@ static void sip_poke_all_peers(void)
 /*--- sip_send_all_registers: Send all known registrations */
 static void sip_send_all_registers(void)
 {
+	int ms = (rand() >> 12) & 0x1fff;
 	ASTOBJ_CONTAINER_TRAVERSE(&regl, 1, do {
 		ASTOBJ_WRLOCK(iterator);
-		__sip_do_register(iterator);
+		if (iterator->expire > -1)
+			ast_sched_del(sched, iterator->expire);
+		iterator->expire = ast_sched_add(sched, ms, sip_reregister, iterator);
 		ASTOBJ_UNLOCK(iterator);
 	} while (0)
 	);