Hello,
in KEMI you can do:
KSR.setdsturi("sip:_IP_OR_DOMAIN_:_PORT_;transport=tcp");
KSR.tm.t_relay()
I will review what tm functions are not exported yet and add those that are still relevant. In Kamailio we had the t_relay_to(...), which allow setting the transport in the parameter, the variants for t_relay_to_tcp/tls/... were retrieve via tm branch and I haven't use them.
Cheers, Daniel
On 28.09.18 12:07, Ivan Ribakov wrote:
How would one achieve the same using KEMI? I can see there is a KSR.tm module - https://kamailio.org/docs/tutorials/devel/kamailio-kemi-framework/modules/#t... has “t_relay()” function but it has no “t_relay_to_tcp()”.
On 28 Sep 2018, at 11:22, Ivan Ribakov <i.ribakov@zaleos.net mailto:i.ribakov@zaleos.net> wrote:
Thanks Daniel!
route[RELAY] section is what I’ve been looking for! I knew about t_relay_to_tcp() function but placing it directly in the end of “request_route” block lead to undesirable behaviour which made me think it’s not what I needed.
On 28 Sep 2018, at 10:40, Daniel Tryba <d.tryba@pocos.nl mailto:d.tryba@pocos.nl> wrote:
On Fri, Sep 28, 2018 at 10:07:09AM +0200, Ivan Ribakov wrote:
In a basic scenario of one2one call, I was able to make Kamailio to forward INVITE to callee over TCP by issuing a REGISTER request with ???transport=tcp??? parameter. Although it worked, as far as I understand that means all communication with the callee will be happening over TCP. I would like to be able to change transport dynamically so looking for a way to do that from config file.
...
Any pointers as to how can I modify the outbound message transport? Do I need to use some extra modules or can it be achieved with a basic setup?
You can do this by explicitly calling t_relay_to_tcp() instead of t_relay().
For example I modified route[RELAY] for a specific destination that wants TCP for large INVITEs.
if($avp(dispatcherid)=="1" && $ml>1249) { if(!t_relay_to_tcp()) { if(!t_relay()) { sl_reply_error(); } } } else { if(!t_relay()) { sl_reply_error(); } }
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