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RTCP in passthrough mode
by Александр Дружилов 14 Nov '16

14 Nov '16

Could somebody explain me how Freeswitch works with a RTCP packets in video passthrough mode? I ask because I found a problem when one user starts sending video to another client through Freeswitch. The problem in depth: I have two clients and whant to make WebRTC video conference between them (but use only passthrough mode because it's just a screensharing when one user sends his screen to anybody other in conference). So first user starts conference and sends his screen to Freeswitch (and he can see that Freeswitch sends him back his screen properly). When another user attaches to this conference he does not see any video, but at the same time I see in chrome://webrtc-internals that he receives exactly the same video stream that first user sends to freeswitch. I started to look deeper and found that second client sends a lot of PLI requests (about 5 per second) to Freeswitch. I tend to think that it's because second client attaches to conference in the middle of RTP stream and he didn't receive a full intra-picture and he can't start encode the video stream. Also I found that no RTCP packets was sent from Freeswitch to the first client to get this intra-picture. So returning to my first question: what if Freeswitch just ignores this RTCP packets in passthrough mode?

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NO any rinback signalling wjile trying to make originate with bgapi
by Yuriy Gorlichenko 13 Nov '16

13 Nov '16

Hi. I using mod_conference and making outgoing call from conference for adding in existed conference All going ok (call reaches to destination) but in process of ringing i can not hear any ringback. So i hear originate leg in conference only after call was answered but i want to detect process of ringing in a call Is there any way to do it?

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module json_cdr not creating all .json cdr when high number of calls
by devang nathwani 11 Nov '16

11 Nov '16

Hello, My freeswitch version is 1.6.10 i have started freeswitch with nice with 19 priority, 'nice -n 19 freeswitch' i am using module json_cdr, here is my config file http://pastebin.com/Mt1AFRVv please note i am writing the logs to json file as well as sending them to nginx web server as well and both legs log are enable i am testing the calls with sipp and sending 10000 calls with 200 cps-call per second and 2000 cc-concurrent calls now after the test i am getting 5192 entires only instead of 20,000(2 legs entry for all 10,000 calls) -> in the other scenario when i send 100 calls with 10 cps and 50 cc, i am getting all 200(100*2) json entries. So what and where is the issue?

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mod_vlc youtube playback
by Anonim Stefan 11 Nov '16

11 Nov '16

Hi, I want to ask if sound/video playback of an youtube URL can be done with mod_vlc. Looking in freeswitch mod_vlc.c I can see "vlc_file_supported_formats[argc++] = "youtube";". I have tried <action application="playback" data="vlc:// https://youtu.be/VoeCcCQuJrM"/> without success: " EXECUTE sofia/internal/7479572798 playback(vlc:// https://youtu.be/VoeCcCQuJrM) 2016-11-11 13:23:36.772643 [DEBUG] mod_vlc.c:832 VLC attempt to open https://youtu.be/VoeCcCQuJrM read 2016-11-11 13:23:36.772643 [DEBUG] mod_vlc.c:857 VLC open https://youtu.be/VoeCcCQuJrM for reading 2016-11-11 13:23:36.772643 [NOTICE] mod_vlc.c:863 VLC Path is http https://youtu.be/VoeCcCQuJrM 2016-11-11 13:23:36.772643 [DEBUG] switch_ivr_play_say.c:1467 Codec Activated L16@8000hz 1 channels 20ms 2016-11-11 13:23:36.772643 [DEBUG] mod_vlc.c:242 Got a libvlc_MediaStateChanged callback. New state: 1 2016-11-11 13:23:37.472579 [DEBUG] mod_vlc.c:242 Got a libvlc_MediaStateChanged callback. New state: 3 2016-11-11 13:23:37.532634 [DEBUG] mod_vlc.c:242 Got a libvlc_MediaStateChanged callback. New state: 7 2016-11-11 13:23:37.532634 [DEBUG] mod_vlc.c:227 Got a libvlc_MediaPlayerEncounteredError callback. mediaPlayer Status: 7 2016-11-11 13:23:37.532634 [ERR] mod_vlc.c:1094 VLC error 2016-11-11 13:23:37.532634 [DEBUG] switch_ivr_play_say.c:1910 done playing file vlc://https://youtu.be/VoeCcCQuJrM 2016-11-11 13:23:37.572584 [DEBUG] mod_vlc.c:242 Got a libvlc_MediaStateChanged callback. New state: 5 2016-11-11 13:23:37.572584 [DEBUG] mod_python.c:286 Finished calling python script 2016-11-11 13:23:37.572584 [DEBUG] switch_cpp.cpp:1107 sofia/internal/7479572798 destroy/unlink session from object EXECUTE sofia/internal/7479572798 hangup() " Couldn't find any documentation/examples about youtube playback using mod_vlc. Can someone help me with some examples, please? Thank you, Stefan

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execute_on_answer in lua
by Yuriy Gorlichenko 11 Nov '16

11 Nov '16

Hi all I need to use execute_on_answer in my lua is there any possibility to call it like sessiom:executeOnAnswer or semething like this?

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Signalling from Android app
by Senthil Ganesh 11 Nov '16

11 Nov '16

Hi, I am developing an Audio/Video Android app. I am able to connect to the FS server using SIP protocol over UDP. I read somewhere that SIP protocol is blocked in some countries. Enterprise firewall restricts UDP packets and allow only TCP on port 443. What is the best way to do signalling from Android app? Regards,Senthil Ganesh

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Callee ID on gateway bridge
by Gregor Nanger 11 Nov '16

11 Nov '16

Can someone please help me with advice. I am routing call to some provider that I need to add prefix to callee number. Then I see in call log Callee ID with prefix. How can I bridge to gateway number :aa1XXXXXXXXX and see only XXXXXXX in call logs? Best regards, Gregor

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String manipulation in the dialplan
by Alexander Haugg 11 Nov '16

11 Nov '16

Hi, the examples on „“ are working successfully. But I need the function like ${var:0:-7}. For example: My dialplan app return a value like this “from number”|”location” ->123456|intern. The length of the “from number” is unknown, but the length of the location is fix (it could be intern or extern only). Now I am trying ${var:0:-7} to extract the “123456”, but I get the complete string 123456|intern. What can I do with this function? Or is the only possibility to solve this via a regular expression ^([0-9]+)[|](intern|extern)$ -> (not tested ;-)? Thanks a lot!

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Lua in-band DTMF
by Zsotya 10 Nov '16

10 Nov '16

Hello All, I am trying to send audiable in-band DTMF from Lua script. If I use the session:execute("send_dtmf", 1) command I can see #1 arrives to the other party in SIP messages but I cannot hear the DTMF audio. How can I set the type of the DTMF? Can I force from lua or is it a gateway or global settings? If I need an audiable DTMF is there any better way than play dtmf sounds from wav files? Thank you! Zsotya

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Need Help on Freeswitch Fail-over (HA)
by Uday kumar 10 Nov '16

10 Nov '16

Hi All, Need Help on Freeswitch Fail-over to avoid down time. I have installed two Freeswitch server on two different servers. Both server have web and mysql database. I am accessing my server using Domain name and also using domain name to register softphone. Is possible, if one server will down then automatically shift everything on other server? Right now domain pointed on server A. We are using cron to copy backup like mysql, recording, logs etc from server A to server B. As per my current setup, if server A will down then I need to change domain pointing IP to server B. If this is possible to do automatically then it will be good. Please advice. -- Thanks & Regard Uday Site:- www.shareyourknowledge.in Mobile:- +91-9377579349

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