--- asterisk-1.4.23/channels/chan_sip.c 2009-01-13 19:34:14.000000000 +0100
+++ asterisk-1.4.23-patched/channels/chan_sip.c 2009-03-02 17:02:47.000000000 +0100
@@ -2075,6 +2077,8 @@
 	} else {
 		/* Schedule retransmission */
 		pkt->retransid = ast_sched_add_variable(sched, siptimer_a, retrans_pkt, pkt, 1);
+		if (option_debug > 3 && sipdebug)
+			ast_log(LOG_DEBUG, "*** SIP TIMER: Packet sent, got Retransid #%d\n", pkt->retransid);
 		return AST_SUCCESS;
 	}
 }