4 Feb
2021
4 Feb
'21
3:38 p.m.
On 04.02.21 12:59, Denys Pozniak wrote:
I do not understand what is difficult, to configure the next hop
application to send 100 trying? Or maybe you can provide a diagram of
how sip traffic is routed on your case.
If you need to
stop the retransmission, a 100 trying should be sent
instead of 200ok. Can you
reconfigure the next hop to do that? Or is
it out of your control?
Looks it is difficult to do this as Kamailio Proxy forks via
append_branch() incoming SIP PUBLISH to all Presence Servers. And even if Presence Server answers 200 OK, the
Kamailio Proxy still
sends a repeated SIP PUBLISH there within the fr timer.
This remark is also not clear, is the 200ok handled by Kamailio, sent
upstream, but then Kamailio still resends the PUBLISH?
Cheers,
Daniel
чт, 4 февр. 2021 г. в 13:04, Daniel-Constantin Mierla
<miconda(a)gmail.com <mailto:miconda@gmail.com>>:
Hello,
if the 200ok is consumed by tm, it will destroy the transaction
very soon. I am not sure this is a good path to go.
If you need to stop the retransmission, a 100 trying should be
sent instead of 200ok. Can you reconfigure the next hop to do
that? Or is it out of your control?
Cheers,
Daniel
On 04.02.21 11:47, Denys Pozniak wrote:
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
Hello!
In the configuration below Kamailio Proxy creates a
transaction for the SIP PUBLISH to get info from the HTTP server
in async mode.
But before creating a transaction, a synthetic 200 OK is sent, so
that I need somehow to drop the real 200 OK from the upstream
Presence Server.
If drop 200 OK in *reply_route*, tm module starts to retransmit.
Those it is necessary that the 200 OK be consumed by the tm
module, but does not go further.
/if ( !is_method("PUBLISH") ) {
/
/ sl_send_reply("200", "Ok");
t_newtran();
/
/ $http_req(suspend) = 1;
http_async_query("$var(url)", "CALLBACK");
/
/}/
/
/
/route[CALLBACK] {
/
/ <some header manipulation>/
/ t_on_reply("PUBLISH_REPLY");
route(RELAY);
exit;
/
/}/
/
/
/onreply_route[PUBLISH_REPLY] {
if ( t_check_status("200") ) {
*drop; # Does not work!!!*
}
}
/
Any advice is appreciated
--
BR,
Denys Pozniak
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--
Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
www.twitter.com/miconda <http://www.twitter.com/miconda> --
www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Funding: https://www.paypal.me/dcmierla <https://www.paypal.me/dcmierla>
--
BR,
Denys Pozniak