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Setting up Jitsi (optional)

To enable the video conference capabilities in ISLE, which are powered by Jitsi, you need to connect to a specified Jitsi server.

  • To setup a new Jitsi server, follow the instructions in their Quick Install guide. As of March 2020, installing Jitsi on Ubuntu 16.04 should work out of the box when following these instructions; other distributions or newer Ubuntu versions yield installation issues that have to be manually resolved.

  • Install prosody:

dpkg -i prosody-trunk_1nightly747-1~xenial_amd64.deb
  • Install jitsi-meet-tokens via command
apt-get install jitsi-meet-tokens
  • Change the Prosody configuration to use JSON web tokens for authentication.

  • Make sure that the Prosody app_id and app_secret match corresponding appId and appSecret fields in the credentials/jitsi.json file of the cloned isle-server repository.

  • Finally, the server field in credentials/jitsi.json should be set to the FQDN of the Jitsi Meet instance.

  • To change the default appearance of Jitsi meet, the interface_config.js file in /usr/share/jitsi-meet should be updated. Refer to the version of the file inside the etc/jitsi-meet folder of this repository for the Jitsi interface configuration used in ISLE.

Jibri for Jitsi Recordings + Live Streaming (optional)

The following video tutorial describes the steps involved in setting up one or more Jibri instances on other servers for recording Jitsi Meet sessions in ISLE:

Newer versions of Chrome require an additional step. From the Jibri file:

Add chrome managed policies file and set CommandLineFlagSecurityWarningsEnabled to false. It will hide warnings in Chrome. You can set it like so:

mkdir -p /etc/opt/chrome/policies/managed
echo '{ "CommandLineFlagSecurityWarningsEnabled": false }' >>/etc/opt/chrome/policies/managed/managed_policies.json

Troubleshooting: In case of Java errors encountered the logs in /var/log/jitsi/jibri, it is advised to install Java 8.

To set it as the default:

sudo update-java-alternatives --list
sudo update-java-alternatives --set java-1.8.0-openjdk-amd64

Setting up Jigasi with Asterisk/FreePBX for Dial-in & Dial-Out (optional)

If you need the ability for participants to dial into ongoing video calls via their phone or to invite attendees via phone, Jigasi in conjunction with a SIP (session initiation protocol) Provider may be used. Asterisk and FreePBX, a GUI sitting on top of it, constitute a good option.

The following series of tutorials called "Transparent Telephony" by Randall Degges provide a great overview of VOIP, how to setup Asterisk + FreePBX, and further background material:

  1. An Introduction
  2. Installing Asterisk
  3. Making and Receiving Calls Using VoIP\:<extension_id>@<host>:5060<base64_encoded_secret}<host><extension_id>@<host>

We write the code for our extension to the file /etc/asterisk/extensions_override_freepbx.conf:

[ext-local]exten => 9999,1,Set(__RINGTIMER=${IF($["${DB(AMPUSER/9999/ringtimer)}" > "0"]?
exten => 9999,2(getmeeting),Playback(conf-getconfno)
exten => 9999,3,Read(Pin,beep,20)
exten => 9999,4,Verbose(result is: ${Pin})
exten => 9999,5,SayDigits(${Pin},m)
exten => 9999,6,AGI(,${Pin})
exten => 9999,7,Verbose(result is: ${JITSI})
exten => 9999,8,GotoIf($["${JITSI}" = "false}"]?invalidnum:joinmeeting)
exten => 9999,9(invalidnum),Playback(conf-invalid)
exten => 9999,10,Goto(getmeeting)
exten => 9999,11(joinmeeting),Set(HASH(__SIPHEADERS,Jitsi-Conference-Room)=${JITSI})
exten => 9999,12,Playback(auth-thankyou)
exten => 9999,13,playback(conf-placeintoconf)
exten => 9999,14,SayAlpha(${JITSI})
exten => 9999,15,Macro(exten-vm,novm,9999,0,0,0)
exten => 9999,16(dest),Set(__PICKUPMARK=)
exten => 9999,17,Goto(${IVR_CONTEXT},return,1)