Hello,
call the rtpproxy_manage() function inside the branch_route, it is a
good place always, doing it when you know the request is being forwarded.
Cheers,
Daniel
On 12.02.18 19:55, Fabian Borot wrote:
> I have this scenario
>
> Customer --> Kamailio --> Provider1
>
> The route where l route the call to Provider1 is called route["INCOMING"] and
> I "arm" the replies and failures to : t_on_reply("INCOMING") and
> t_on_failure("INCOMING"). Provider1 always replies with a 302 Redirect and
> in the failure_route["INCOMING'] I have this code:
>
> if (t_check_status("302")) {
> get_redirects("*");
> t_on_branch("REDIRECT_BRANCH");
> t_load_contacts();
> t_next_contacts();
> t_on_failure("SERIAL_FORKING");
> t_relay();
> exit;
> }
>
> In the t_on_failure("SERIAL_FORKING") block I do t_relay() as long as there
> are more contacts to be processed. Lets say I need to try Provider_2 and
> Provider_3
>
> failure_route["SERIAL_FORKING"]
> {
> xlog("L_INFO","mylog: In Failure Route SERIAL_FORKING. Reply
> [$rs]\n");
> if (!t_next_contacts()) {
> exit;
> }
> xlog("L_INFO","mylog: In Failure Route SERIAL_FORKING. Trying next
> Contact.\n");
> t_on_failure("SERIAL_FORKING");
> t_relay();
> }
>
> I want to use RTPProxy in this scenario and I am using the function
> rtpproxy_manage() to let kamailio handle it automatically.
>
> RTPProxy
> ↑
> |
> |
> Customer --> Kamailio --> Provider1
> |
> |
> ↓
> Provider N
>
>
> After the 302 response is processed I would like to have the signaling flow
> "Customer -> Kamailio --> ProviderN" and the RTP flow "Customer --> RTPProxy
> --> ProviderN"
>
> I have tried inserting the function in several places but can't make it work
> and what I mean is that sometimes the rtpproxy creates the 1st session and
> then deletes it as soon as I call it the 2nd time with a message similar to
> this one (log of rtpproxy) :
> "INFO:416f20b74a58fb75168175e61b2edece@192.168.1.61:5060:rtpp_cmd_delete_ematch:
> forcefully deleting session 1 on ports 63502/0". Sometimes the kamailio log
> shows this message: "ERROR: rtpproxy [rtpproxy.c:2536]: force_rtp_proxy():
> incorrect port 0 in reply from rtp proxy"
>
> I think I must call rtpproxy_manage() before I send the INVITE to each of the
> Providers in the Contact list so they receive a SDP offer with an IP:Port
> combination provided by the RTPProxy (instead of the ones coming from the
> Customer). That would be in my route["INCOMING']
> Then once Provider_N replies with a 183 with SDP or a 200 OK I would call it
> again to get a new session to be passed on the reply to my customer. But is
> the part I am struggling with. Should I add a new reply route inside the
> failure_route["INCOMING'] only if I am dealing with 302 and do it there ?
> I am out of ideas guys and any idea is welcome
>
>
> _______________________________________________
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--
Daniel-Constantin Mierla
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