Importing rev #8537 from 1.2, never send response to ACK (issue #6308)

[asterisk/asterisk.git] / channels / chan_sip.c

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index e38dc11..2b4692c 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -11040,8 +11040,10 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
                ast_log(LOG_DEBUG, "**** Received %s (%d) - Command in SIP %s\n", sip_methods[p->method].text, sip_methods[p->method].id, cmd); 
 
        if (p->icseq && (p->icseq > seqno)) {
-               ast_log(LOG_DEBUG, "Ignoring too old SIP packet packet %d (expecting >= %d)\n", seqno, p->icseq);
-               transmit_response(p, "503 Server error", req);  /* We must respond according to RFC 3261 sec 12.2 */
+               if (option_debug)
+                       ast_log(LOG_DEBUG, "Ignoring too old SIP packet packet %d (expecting >= %d)\n", seqno, p->icseq);
+               if (req->method != SIP_ACK)
+                       transmit_response(p, "503 Server error", req);  /* We must respond according to RFC 3261 sec 12.2 */
                return -1;
        } else if (p->icseq && (p->icseq == seqno) && req->method != SIP_ACK &&(p->method != SIP_CANCEL|| ast_test_flag(p, SIP_ALREADYGONE))) {
                /* ignore means "don't do anything with it" but still have to