diff options
Diffstat (limited to 'channels/chan_sip.c')
| -rw-r--r-- | channels/chan_sip.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index e68fc7333..6887e81f1 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -3339,8 +3339,26 @@ static int retrans_pkt(const void *data) pkt->owner->owner->hangupcause = AST_CAUSE_NO_USER_RESPONSE; } if (pkt->owner->owner) { - sip_alreadygone(pkt->owner); ast_log(LOG_WARNING, "Hanging up call %s - no reply to our critical packet (see doc/sip-retransmit.txt).\n", pkt->owner->callid); + + if (pkt->is_resp && + (pkt->response_code >= 200) && + (pkt->response_code < 300) && + pkt->owner->pendinginvite && + ast_test_flag(&pkt->owner->flags[1], SIP_PAGE2_DIALOG_ESTABLISHED)) { + /* This is a timeout of the 2XX response to a pending INVITE. In this case terminate the INVITE + * transaction just as if we received the ACK, but immediately hangup with a BYE (sip_hangup + * will send the BYE as long as the dialog is not set as "alreadygone") + * RFC 3261 section 13.3.1.4. + * "If the server retransmits the 2xx response for 64*T1 seconds without receiving + * an ACK, the dialog is confirmed, but the session SHOULD be terminated. This is + * accomplished with a BYE, as described in Section 15." */ + pkt->owner->invitestate = INV_TERMINATED; + pkt->owner->pendinginvite = 0; + } else { + /* there is nothing left to do, mark the dialog as gone */ + sip_alreadygone(pkt->owner); + } ast_queue_hangup_with_cause(pkt->owner->owner, AST_CAUSE_PROTOCOL_ERROR); ast_channel_unlock(pkt->owner->owner); } else { |