diff -NaurbB old/chan_sip.c new/chan_sip.c
--- old/chan_sip.c	2009-01-15 17:09:03.000000000 +0000
+++ new/chan_sip.c	2009-01-16 09:26:46.000000000 +0000
@@ -18613,7 +18613,7 @@
 
 			make_our_tag(p->tag, sizeof(p->tag));
 			/* First invitation - create the channel */
-			c = sip_new(p, AST_STATE_DOWN, S_OR(p->username, NULL));
+			c = sip_new(p, AST_STATE_DOWN, p->peername);
 			*recount = 1;
 
 			/* Save Record-Route for any later requests we make on this dialogue */