That's the 64,000 dollar question isn't it?
Tt's difficult to do while rejecting surveillance advertising (that would completely defeat the app's privacy principles, so I won't do it).
I'm looking into SIP - if I can enable the app to call regular telephones from the web, that would be a premium feature that could be charged for.
There are further functionality enhancements, like large group calls, which require extended infrastructure and would have to be charged for, but using TURN and SFUs violates the P2P E2EE principle too - and Zoom does it for free - so the question is very difficult to answer.
If you have any ideas yourself I'd totally love to hear them! :)
