Hello ,

we are and we are -friendly .

Free as in AND as in beer. (donations are welcome)

You don't even have to register an account (unless you need persistent rooms). Just visit - klick on "start meeting", enter meeting name (password optional), press "start" enter your name and have fun senfing. The call-invite link you find at the top of the chat.

How come that senf in English?

Will you add other languages?

@nurinoas because we have been approached by non german speakers and english is a language understood by many people (and we are also pretty confident in using it ourselves).

We might add other languages in the future but for now we will stick with German and English.

@senfcall Über seid ihr und wackerer "Wettbewerb" zu finden. Es kann gar nicht genug BBB- und Jitsi-Instanzen geben.

@mupan ich vermute, dass die Menschen aus Ulm, deren Frontend wir geforked haben und wir die einzigen dort zu sein scheinen hängt damit zusammen, dass man bei den meisten anderen BBB-Hosting angeboten Accounts benötigt. Uns viele da z.B. noch von @psy ein.

@senfcall why senf? Mustard? I don't get it. 🤔 Lovely initiative!!!

@wendy there is a german saying that's called "seinen senf dazu geben" (adding your mustard). It means somebody shares an opinion in third-party conversation, usually without being asked.

We created Senfcall because we were forced to use unethical videoconference tools, without being asked and wanted to show that there's a different way.

@senfcall hey, we ( @domainepublic @nurpa @constant and more) are working on making #BigBlueButton more available for more Belgian organisations. How do you manage to keep the openness? BBB is quite resource hungry..

@wendy @senfcall @domainepublic @nurpa @constant choose hardware that brings the best concurrent users / server-cost ratio, rent dedicated servers with current AMD Ryzen CPUs at a big datacenter provider like Hetzner, rent lots of dedicated servers, automate everything, use Ansible.

@wendy in production, BBB tends to be a bit less or equally resource hungry than Jitsi, once you set it up with settings that are optimized for your use case.

@basisbit hi, thanks for your answer. Are there examples online for optimal configuration of your #BigBlueButton server? I know there is a thing as a search engine 😉 but as self-hosters it would be great to have some really good example configs, reduce energy use, limit bandwidth and optimisation of speech quality!

@wendy mainly the things that @basisbit said. The best starting point is the documentation, where you find most of the necessary recommendations:
There are also some google groups mailing lists for community support:
That's mostly what we are using, basisbit might have further recommendations. For german speakers there is also the -meeting every monday:

@wendy sorry, but for hosting a video conferencing service like BBB, you'll have to read lots of documentation and know what your requirements are. I'd suggest you to start small and then grow your user base.
How many concurrent users and how many concurrent sessions do you expect? On average how many people with webcam enabled per meeting?

@senfcall Welcome to the Fediverse and thank you for what you're doing with #BigBlueBotton! I am new to it, but was somewhat familiar with #Jitsi already. I'd be open to any thoughts you may have on comparison between the two. (It's great we have two open source video calling ecosystems now!)

@jgoerzen i'd say it's mainly feature-wise. has an integrated pad and shared presentations with drawing. In our experience BBB is easier to change to custom setups. on the other hand is easier to set up.
We can't say much about the compliance of Jitsi, but to be compliant, BBB needs a bit of tweaking. We developed some tools for this purpose, which you can find here:

@jgoerzen and i forgot: BigBlueButton has more advanced moderation features.

@senfcall Can you enable English as a fallback language in settings of the bbb instance? Currently the instance is always in German and having English as a fallback will be useful to a lot of people. See for how to enable it.

hey @praveen , the majority of our users are German so we unfortunately can not change the fallback to english right now. However, the language detection works pretty well in most cases. Only when you use without an account you can run into trouble. If you register an account, you should be fine (

Thanks for the tip about creating an account. Do you know if BBB support an option to set language from a URL parameter ? If it allows choosing a language from the interface that can work as well, may be I should file an issue.

It seems like the API does not offer that. However, be reminded, that uses its own join mechanism, so there is some text which will always stay german, while should detect your browsers language correctly and set the language accordingly.

@praveen also you can change the language in the preferences (three dot menu in the top right corner).

Thanks! With browser language set, BBB detected correct language. Would it be possible to offer English version of the room creation page? Also offer English default slides if browser language is set to another language (other than English which may be default even for German users) like Malayalam?

@praveen for now, offering default slides in a different language would exceed our capacities. We will talk about whether we can offer the public room creation page in english.

Thanks. I think BBB should support choosing default slides based on chosen language.

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