May 2021 - FreeSWITCH-users - FreeSWITCH Mailing Lists

add sdp attribute maxptime to FreeSwitch
by Victor Velo 26 May '21

26 May '21

Hello, Is there a way to add the attribute maxptime to a=maxptime=150 on FreeSwitch? Thanks, Victor

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Lua script session issues
by nycphoneservice 25 May '21

25 May '21

Hi all, I have the following issue in my lua script. I need to initialize a new session, set variables and then originate a call later. It doesn't work - I get a session uninitialized error. The lua script is called from cli as luarun test.lua Here is the script: ses = freeswitch.Session() ses:execute("set","test=123") <-- get a session uninitialized When I try ses = new freeswitch.Session() I get function overload error It works only when I use ses = freeswitch.Session("{api_hangup_hook='lua retry.lua',continue_on_error=true}/sofia/profile/gateway1/number|/sofia/profile/gateway2/number") But the problem is that I have a session hangup hook specified and use multiple gateways dial failover. The session executes the hangup hook if the first gateway call didn't go through, which doesn't make sense. continue_on_error is ignored even if I do ses:execute("set","continue_on_error=true") after the initialization. Please suggest what is the best approach. Thank you

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Configuring mod_portaudio for Debian built-in (JACK?) audio
by Steven Schoch 21 May '21

21 May '21

I have an HP Prodesk tower with Debian and FreeSWITCH installed. It has an audio jack that is plugged into a speaker. I configured the system so that the devices in /dev/snd are group "freeswitch". Now I want to transfer a call to the speaker with <action application="bridge" data="portaudio/auto_answer"/>. However, I am getting errors when I load mod_portaudio that look like this: 2021-03-27 21:15:30.747447 [ERR] mod_portaudio.c:1617 Invalid outstream specified for endpoint 'default' It looks like a config file issue, but I have no clue where to start because I couldn't find a good example. Any suggestions? -- Steve

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Understanding why FS replies with "407 Proxy Authentication Required" on internal INVITE
by Thilo-Alexander Ginkel 21 May '21

21 May '21

Hello everyone, we have a current FreeSWITCH installation (v1.10.6) that interfaces internal users with upstream gateways. All clients work flawlessly, except for an AVM FritzBox (short: FB), which exhibits the following behavior: When FB initiates a call to another user or external number, FreeSWITCH responds with a "407 Proxy Authentication Required" response although the dialplan is the same as for the clients that do not exhibit this behavior. This confuses the FB's SIP stack, which consequently reports a timeout and drops the call. A (redacted) SIP trace is available at: https://gist.github.com/ginkel/5c7dd3723f92e0137d5f357451dc7ac6 All clients as well the FS server reside in the same RFC1918 network. Other Polycom or Yealink clients are unaffected. Any ideas what might cause this? Thanks, Thilo

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RE - Internal Interface suddenly freezes
by Kakiman Expert 20 May '21

20 May '21

hello, Did you try to upgrade to latest release 1.10.6 (march 2021) and check if this "blackout" is solved or still present ?. regards

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Heartbeat between WebRTC Client and Freeswitch
by Qihong Wang 18 May '21

18 May '21

Hi, I'm new to Freeswitch and real time communication. However, I'm involving a project which uses Freeswitch gateway for WebRTC communication. The client, mostly JavaScript code, uses Websocket to send media data and also the heartbeat regardless the ping/pong of Websocket. Freeswitch must respond that heartbeat. I'm not sure where to start. I'm thinking src/mod/endpoints/mod_rtc/mod_rtc.c or mod_verto.c/mod_verto.c, ws.c might be the right place to add heartbeat handling? The second thought is using Freeswitch's event system, especially the buildin heartbeat event. If so, our client needs to give up it's own heartbeat, although the possibility is very low. I'd love to hear how to utilize Freeswitch's heartbeat event between our client and Freeswitch gateway. Thanks in advance! Qihong

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Re: [Freeswitch-users] Detect inband DTMF on B-leg
by Igor Potjevlesh 18 May '21

18 May '21

Yes, exactly. As well as the revert direction if possible: inband from B to telephone-event to A. -----Message d'origine----- De : FreeSWITCH-users <freeswitch-users-bounces(a)lists.freeswitch.org> De la part de kaiduan xie via FreeSWITCH-users Envoyé : mercredi 12 mai 2021 18:17 À : 'FreeSWITCH Users Help' <freeswitch-users(a)lists.freeswitch.org> Objet : Re: [Freeswitch-users] Detect inband DTMF on B-leg _________________________________________________________________________ The FreeSWITCH project is sponsored by SignalWire https://signalwire.com Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services. Build your next product on our scalable cloud platform. Join our online community to chat in real time https://signalwire.community Professional FreeSWITCH Services sales(a)freeswitch.com https://freeswitch.com Official FreeSWITCH Sites https://freeswitch.com/oss https://freeswitch.org/confluence https://cluecon.com FreeSWITCH-users mailing list FreeSWITCH-users(a)lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users https://freeswitch.com -- L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. https://www.avast.com/antivirus

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Detect inband DTMF on B-leg
by Igor Potjevlesh 12 May '21

12 May '21

Hello, I'm working with start_dtmf in order to transcode inband DTMF to RTP-Event. That's working fine but I'm wondering how could I check the B-leg SDP to match if there's or not "telephone-event" to do it only if require. That would also allow me to do RFC2833 to inband from A-leg to B-leg. I can easily check ${switch_r_sdp} for A-leg, but I can't figure out how to check 200 OK SDP and update the DTMF behaviour accordingly. Any idea? Thank you. Regards, Igor. -- L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. https://www.avast.com/antivirus

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schedule 2072
by Mustafa Ali Kahraman 11 May '21

11 May '21

i have a lua script, and i am scheduling another lua script in it with +0 [image: image.png] this has been working properly for months ( maybe year(s) ) but it has scheduled to "3241173581" wrongly the other day. 2021-05-09 21:59:51.016191 [DEBUG] switch_scheduler.c:249 Added task 67647 sched_api_function (90483_11) to run at 3241173581 previous jobs and next jobs are normal. any idea what problem could be? -- -tafali- www.tafali.net

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JSON channel variable from Dialplan
by Guillermo Ruiz Camauer 05 May '21

05 May '21

Hi all, Is it possible to set the value of a channel variable to a JSON formatted string? I need to do something like this: <action application="set" data="MY_VAR=[\"Ford\", \"Chevy\"]"/> The problem seems to be that FS is not accepting the escape sequence and MY_VAR gets set to [\ How do I go about escaping double quotes in the dialplan? -- Guillermo Ruiz Camauer

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