To have this type of service you need a public domain with a valid certificate, which is not very common in the PBX for security reasons.
What we recommend is that you install in a VPS on a Video conference server. Here are the steps of how you should do it.
1.- Use a VPS or dedicated server with a minimum of 2GB of RAM.
2.- Install Ubunto 17.x x86 64 minimal with user root activated
3.- Install Apache
#> apt-get update
#> apt-get install apache2
4.- Instalar Jitsi Meet
#> cd /tmp
#> wget -qO – http://download.jitsi.org/jitsi-key.gpg.key | apt-key add –
#> sh -c “echo ‘deb http://download.jitsi.org stable/’ > /etc/apt/sources.list.d/jitsi-stable.list”
#> apt-get -y update
#> apt-get -y install jitsi-meet
When ask about host, select you own sub domain (ex: meet.vitalpbx.org)
When ask about certificate, select “Self Generate”, after you can change for free original certificate. You can create free certificate in:
https://www.sslforfree.com