How about good’ol IRC?

Mashimo 12 hours ago | parent | next [-]

Fun, until you want to share an image and have to upload it to a 3rd party, have to explain what a bouncer is to someone who just wants offline messages and AFAIK voice and video chat is not possible.

Client dependent, but channel overview per server is also not that good.

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jagermo 5 hours ago | parent | prev [-]

No voice chat.

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opan 4 hours ago | parent [-]

IRC + Mumble is a good combo in my experience. I only fire up Mumble as-needed since I tend to prefer text chat.

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jagermo 4 hours ago | parent [-]

i agree, but you need your people to have 2 logins. Great for friend groups, not working in scale.

	▲	opan 3 hours ago \| parent [-]
		Neither one strictly requires a login AFAIK, actually. You can chat with an unregistered nick on IRC, and Mumble has certs, but I think they're optional and don't have associated passwords.