[OpenSER-Users] T38 re invite not being sent to VoIP provider

Mike O'Connor mike at pineview.net
Sun Dec 23 23:51:27 CET 2007


Hi Guys

Does anyone have any idea where I should start to find this problem ?

Mike

Mike O'Connor wrote:
> Hi Guys
>
> I'm trying to get T38 working between our VoIP Provider and my epygi PBX.
>
> I have the epygi registered with openSER when a phone call is received
> from our provider openSER forwards the call to the epygi. When this unit
> detects the fax tone it does a re invite. (the re invite has the SDP
> indicating it want a T38)
> This re invite never gets to our VoIP provider. OpenSER is blocking the
> request.
>
> The invite would seem to be hitting our loose routing
>
>         if (loose_route()) {
>                 xlog("L_NOTICE", "Running loose_route logic");
>                 if ((is_method("INVITE|REFER") && ! has_totag())) {
>                         route(ROUTE_AUTHTEST);
>                         if (retcode == FALSE)
>                                 return;
>                 };
>
>                 if (method=="INVITE") {
>                         route(ROUTE_AUTHTEST);
>                         if (retcode == FALSE)
>                                 return;
>                 };
>
>                 append_hf("P-hint: rr-enforced\r\n");
>                 route(ROUTE_DEFAULTHANDLER);
>                 return;
>         };
>
> route[ROUTE_DEFAULTHANDLER] {
>
>         t_on_reply("REPLYROUTE");
>
>         if (!t_relay()) {
>                 sl_reply_error();
>         };
> }
>
>
> Any ideas as to what I might have wrong ?
>
> Keep in mind that we are using OpenSER as a part of VoIP service to a
> small number of customers.
>
>
> Thanks
> Mike
>
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