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-rw-r--r--channels/chan_sip.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index ea92c3364..36eac0ad0 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -11748,7 +11748,16 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
sip_scheddestroy(p, DEFAULT_TRANS_TIMEOUT);
break;
-
+ case 487: /* Cancelled transaction */
+ /* We have sent CANCEL on an outbound INVITE
+ This transaction is already scheduled to be killed by sip_hangup().
+ */
+ transmit_request(p, SIP_ACK, seqno, 0, 0);
+ if (p->owner && !ast_test_flag(req, SIP_PKT_IGNORE))
+ ast_queue_hangup(p->owner);
+ else if (!ast_test_flag(req, SIP_PKT_IGNORE))
+ update_call_counter(p, DEC_CALL_LIMIT);
+ break;
case 491: /* Pending */
/* we really should have to wait a while, then retransmit */
/* We should support the retry-after at some point */
@@ -11760,6 +11769,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
break;
case 501: /* Not implemented */
+ transmit_request(p, SIP_ACK, seqno, 0, 0);
if (p->owner)
ast_queue_control(p->owner, AST_CONTROL_CONGESTION);
break;
@@ -12166,6 +12176,10 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
/* Guessing that this is not an important request */
}
break;
+ case 487:
+ if (sipmethod == SIP_INVITE)
+ handle_response_invite(p, resp, rest, req, seqno);
+ break;
case 491: /* Pending */
if (sipmethod == SIP_INVITE)
handle_response_invite(p, resp, rest, req, seqno);
@@ -12211,12 +12225,6 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
if (p->owner)
ast_queue_control(p->owner, AST_CONTROL_BUSY);
break;
- case 487: /* Response on INVITE that has been CANCELled */
- /* channel now destroyed - dec the inUse counter */
- if (owner)
- ast_queue_hangup(p->owner);
- update_call_counter(p, DEC_CALL_LIMIT);
- break;
case 482: /*
\note SIP is incapable of performing a hairpin call, which
is yet another failure of not having a layer 2 (again, YAY