INVITE, but do set an autodestruct just in case we never get it. */
needdestroy = 0;
sip_scheddestroy(p, DEFAULT_TRANS_TIMEOUT);
+ p->invitestate = INV_CANCELLED;
}
if ( p->initid != -1 ) {
/* channel still up - reverse dec of inUse counter
transmit_response_reliable(p, res, &p->initreq);
else
transmit_response_reliable(p, "603 Declined", &p->initreq);
+ p->invitestate = INV_TERMINATED;
}
} else { /* Call is in UP state, send BYE */
if (!p->pendinginvite) {
check_via(p, req);
sip_alreadygone(p);
- p->invitestate = INV_CANCELLED;
+
+ /* At this point, we could have cancelled the invite at the same time
+ as the other side sends a CANCEL. Our final reply with error code
+ might not have been received by the other side before the CANCEL
+ was sent, so let's just give up retransmissions and waiting for
+ ACK on our error code. The call is hanging up any way. */
+ if (p->invitestate == INV_TERMINATED)
+ __sip_pretend_ack(p);
+ else
+ p->invitestate = INV_CANCELLED;
if (p->owner && p->owner->_state == AST_STATE_UP) {
/* This call is up, cancel is ignored, we need a bye */