Hi,
IMO when the header includes "Require: 100REL" then the PRACK should
be sent, but I found the oSIP implementation do a trick that when it
find the response head includes a RSeq field.
It is right?
{
osip_header_t *rseq;
osip_message_header_get_byname (je->response, "RSeq", 0, &rseq);
if (rseq != NULL && rseq->hvalue != NULL)
{
/* try sending a PRACK */
osip_message_t *prack = NULL;
int i;
eXosip_lock ();
i = eXosip_call_build_prack (ca->tid, &prack);
if (i != 0)
{
OSIP_TRACE (osip_trace
(__FILE__, __LINE__, OSIP_WARNING, NULL,
"Failed to build PRACK request\n"));
} else
{
eXosip_call_send_prack (ca->tid, prack);
}
eXosip_unlock ();
}
}
--
Chief Programmer,
Abai Studio,
China
Focus on Linux, VoIP, Entertainment
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