Its pretty similar to Lemmy or anything else in the fediverse, someones full user name includes their home server.
Your admin just needs to have configured the service to except comminication from other servers and not just its internal users.
Teamspeak still requires a license above a small user size, but has multiple clients that can accomodate different target audicences. The TS3 client still looks like it did back in the windows 7 days and the TS5 client is just copying discords homework (Not a clue what happend to 4 and I believe 6 is under development). Both use the same server backend and database structure so both work with one server and different user expirences.
Mumble is still the gold standard for handling large user bases (there is a reason big EvE Online alliances use mumble). It will take longer to set up, the configuration is handled by the server, not through authorized user accounts like TS.
Dito (Synapse server), Element for desktop app and fruitphones, Shildichat for android (its lighter and has an adorable turtle as a mascot).
And seconding the voice coms, the VOIP relay server is a huge pain to set up, same with the registration page. My nerd herd hosts a few services that federated to share services and the admin group just issues people accounts.
TLDR: no… Were not using discord anymore, we have discord at home.
Dont knock matrix for being slow, it updates just as fast as anyone else’s network speed is and it is focused on encryption and security. Given [gestures broadly to everything these days] people moving away from major platforms should really take into account their digital footprint and privacy.
The unicorns on the blanket are the best.
Hell yah, TS3 crew all the way. (Or TS5 for the zoomers…)
My nerds herd recently also set up a cluster of Matrix Synapse servers so we got our little “We have Telegram at home” set up. Getting non-tech people to accept that this is how to find me has been tricky without sounding like a digital prepper.
Well… Who won?