Index: chan_sip.c
===================================================================
RCS file: /usr/cvsroot/asterisk/channels/chan_sip.c,v
retrieving revision 1.898
diff -u -r1.898 chan_sip.c
--- chan_sip.c	27 Oct 2005 02:19:37 -0000	1.898
+++ chan_sip.c	28 Oct 2005 04:39:34 -0000
@@ -97,6 +97,9 @@
 
 /* #define VOCAL_DATA_HACK */
 
+/* Uncomment this define if you have more than about 500 outgoing registrations (!) */
+/* #define SENDING_MANY_REGISTRATIONS */
+
 #define SIPDUMPER
 #define DEFAULT_DEFAULT_EXPIRY  120
 #define DEFAULT_MAX_EXPIRY	3600
@@ -12865,12 +12873,20 @@
 {
 	int ms;
 
+	ms = 20;
 	ASTOBJ_CONTAINER_TRAVERSE(&regl, 1, do {
 		ASTOBJ_WRLOCK(iterator);
 		if (iterator->expire > -1)
 			ast_sched_del(sched, iterator->expire);
+#ifdef SENDING_MANY_REGISTRATIONS
+		/* this is the 1000s to get done version - send 'em at 50 per second */
+		iterator->expire = ast_sched_add(sched, ms, sip_reregister, iterator);
+		ms += 20;
+#else
+		/* original version sends them all spread over 8 seconds or so */
 		ms = (rand() >> 12) & 0x1fff;
 		iterator->expire = ast_sched_add(sched, ms, sip_reregister, iterator);
+#endif
 		ASTOBJ_UNLOCK(iterator);
 	} while (0)
 	);