From changelog:
Introducing Call Links: The missing link for calendar invites and impromptu gatherings.
★ Now you can quickly create an easy link that anyone on Signal can use to join a group call without having to join a Signal group chat first.
★ Call links are reusable and ideal for recurring phone dates with your best friends or weekly check-ins with your coworkers.
★ You can manage your call links, control approval settings, and copy links from the calls tab for quick sharing.
can you share the signal version on which this feature was released. I an not sure if i got this update. I am still figuring how to get a call link.
It is in the latest beta version that the functionalities can be found.
Which can only be downloaded via Play Store with an opted-in Google account.
Yay Signal 
Yikes…
Is there really no other way to get it?
Or use Aurora store, search signal, select manual download, type version 147000,
edit: They also have 147100, source
If someone can share a way allowing us to find out the build number, then we can simply use aurora store to download it, without opting into beta programme.
version 7.21.0
org.thoughtcrime.securesms
versionCode 147100
They already have a self-updater in the website version. They could just add a beta channel option.
This is asinine.
All other messengers that are worth mentioning provide a way to get beta versions outside the Play Store. Only Signal is incapable of doing so.
There’s a desktop version beta also, you can try call links there
https://support.signal.org/hc/en-us/articles/360007318471-Signal-Beta
Just wait 2-3 days guys it would be released in stable version. Also this not that of huge update that you need to really hurry about. Also you can test it out with desktop beta without needing an account anywhere.
Some time ago Jami was removed. This feels like a viable replacement for video-conferencing apps. I don’t believe there are any video conferencing tool alternatives listed. (Zoom, Teams, etc)
I don’t think signal call is a good substitute as it requires a phone number to create an account, which is more costly and inconvinent to replace.
That’s fairly normal for teleconferencing. In any case you would use your existing phone number and no need to replace the number after given Signal’s privacy options.
In my situation (e,g, gettting involved in social movements), I always use google meet with a dedicated account (if required by admin), or Jitsi without account.
In corporate setting, I mostly use MS Teams as the companies use MS suites anyway.
Just tested with a friend, it does provide “raise hand” as well as “waiting hall” feature that is vital for a VC setting.
Hope it would help signal to attract more users in community e.g. NGOs, not holding my breath though.
This is lovely. Signal is mainly my backup to Simplex at the moment, features like these make it hard to uninstall.
They have released the v7.21.4 which should contain the call link feature in the official release.
Also i think this is the first time i am seeing signal actually attaching an apk in their github releases 
