[OpenSIPS-Users] Opensips and rtpengine_play_media not absorbing ACK

Fri Nov 3 19:51:05 UTC 2023

Dmitry,
Thank you for your response, it does appear to work this way and is
absorbing the ACK now, but when a Re-INVITE happens, it responds correctly
with the updated Cseq in the 100 Trying, but the 200 OK (using the
t_reply_with_body), still has the same Cseq as the initial INVITE.  How can
I make adjustments for this?

Thank you.

Kevin

On Fri, Nov 3, 2023 at 5:10 AM Dmitry Ponomaryov <iamhalje at gmail.com> wrote:

> It turns out that this is no early_media, there were simply successful
> attempts with 183 Session Progress, which is why there was such a
> misunderstanding, I’ll attach the snippet code again in plain text:
> route { if (is_method("INVITE")) { create_dialog(); route(media); exit;
> } } route[media] { if (has_body("application/sdp")) { rtpengine_offer();
> } $json(reply) := $rtpquery;
> $var(port)=$json_pretty(reply/tags/$ft/medias[0]/streams[0]/local port);
> remove_body_part(); append_to_reply("Contact:
> <sip:$rU@$socket_in(ip):$socket_in(port);transport=udp;did=$DLG_did>\r\n");
>
> append_to_reply("Content-Type: application/sdp\r\n"); $var(body) =
> $(rb{re.subst,/(IP4.).*/\1$socket_in(ip)/g}); $var(body) =
> $(var(body){re.subst,/(audio.)...../\1$var(port)/g});
> t_reply_with_body(200, "OK", $var(body));
> rtpengine_play_media("call-id=$ci from-tag=$ft
> file=/etc/rtpengine/media.wav"); async(sleep(10), after_media); }
> route[after_media] { if (t_was_cancelled()) { rtpengine_delete(); exit;
> } else { rtpengine_delete(); sl_send_reply(486,"Busy here"); exit; } }
>
> and pined previous posts below :)
>
> > ----------------------------------------------------------------------
> > Message: 2
> > Date: Fri, 3 Nov 2023 16:00:22 +0500
> > From: Dmitry Ponomaryov<iamhalje at gmail.com>
> > To:users at lists.opensips.org
> > Subject: Re: [OpenSIPS-Users] Opensips and rtpengine_play_media not
> >       absorbing ACK
> > Message-ID:<3971cbc2-7281-2299-4212-7f241e8b8b5a at gmail.com>
> > Content-Type: text/plain; charset="utf-8"; Format="flowed"
> >
> > Hello everyone, I would like to show my part of the code when playing
> > early media after 200OK, when creating dialogs, I substituted $DLG_did
> > in the contact of my dialog, and received the same $DLG_did for my
> > dialog in ACK, but OpenSIPS also continued to send 200OK , despite
> > having already received an ACK response.
> >
> > route {
> >
> > # initial invite
> >
> > if (is_method("INVITE")) {
> >
> > create_dialog();
> >
> > route(early_media);
> >
> > exit;
> >
> > }
> >
> > } route[early_media] { if (has_body("application/sdp")) {
> > rtpengine_manage(); } $json(reply) := $rtpquery;
> > $var(port)=$json_pretty(reply/tags/$ft/medias[0]/streams[0]/local port);
> > remove_body_part();
> >
> > append_to_reply("Contact:
> > <sip:$rU@
> $socket_in(ip):$socket_in(port);transport=udp;did=$DLG_did>\r\n");
> >
> > append_to_reply("Content-Type: application/sdp\r\n"); $var(body) =
> > $(rb{re.subst,/(IP4.).*/\1$socket_in(ip)/g}); $var(body) =
> > $(var(body){re.subst,/(audio.)...../\1$var(port)/g});
> > t_reply_with_body(200, "OK", $var(body));
> > rtpengine_play_media("call-id=$ci from-tag=$ft
> > file=/etc/rtpengine/media.wav"); async(sleep(10), after_early_media); }
> > route[after_early_media] { if (t_was_cancelled()) { rtpengine_delete();
> > exit; } else { rtpengine_delete(); sl_send_reply(486,"Busy here"); exit;
> > } }
> >
> > I don’t know if Kevin example was with creating a dialog, but I also
> > noticed this problem through transaction... thanks
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL:<
> http://lists.opensips.org/pipermail/users/attachments/20231103/059cb479/attachment-0001.html
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Thu, 2 Nov 2023 16:32:02 -0700
> > From: Kevin Kennedy<kennedy4260 at gmail.com>
> > To: OpenSIPS users mailling list<users at lists.opensips.org>
> > Subject: [OpenSIPS-Users] Opensips and rtpengine_play_media not
> >       absorbing ACK
> > Message-ID:
> >       <
> CABDXsRxLTp2_uEX_UPX1adg16af6gaetzJujUTPki8c7H3KKLQ at mail.gmail.com>
> > Content-Type: text/plain; charset="utf-8"
> >
> > I am trying to build a solution where Opensips 3.2+ with RTPengine acts
> as
> > a UAC, answers a call with 200OK, plays media from file, and will
> terminate
> > the call right after playing announcement.
> >
> > Opensips is responding with 200OK with SDP body and making the
> > correct changes for the IP, but when the ACK comes back from the UAS,
> > Opensips doesn't seem to absorb it and retransmits the 200OK.
> >
> > Code snippet handling this scenario
> >
> >          rtpengine_manage("from-tag=$ft replace-session-connection
> > trust-address replace-origin codec-strip-g729",,$var(body));
> >          append_to_reply("Contact:<sip:$socket_out>\r\n");
> >          append_to_reply("Content-Type: application/sdp\r\n");
> >          t_reply_with_body(200, "OK", $var(body));
> >          rtpengine_play_media("from-tag=$ft
> > file=/etc/rtpengine/unk_num.wav");
> >          sleep(10);
> >          rtpengine_delete("from-tag=$ft");
> >          #t_reply(603, "Decline");
> >          exit();
> >
> >
> > What do I need to add to handle this scenario correctly?
> >
> > Note:  I was able to get this to work with Early Media (183
> > reply_with_body, and send t_reply(603, "Decline")), but we have customers
> > using late media invite as well, so the Early Media option wouldn't work
> in
> > that case.
> >
> > Thank you.
> >
> > Kevin Kennedy
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL:<
> http://lists.opensips.org/pipermail/users/attachments/20231102/dd52d307/attachment-0001.html
> >
> >
> > ------------------------------
> >
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20231103/77a6ee37/attachment.html>