Yes, it's sad how little attention that period of German history gets especially abroad. Babylon Berlin is a fantastic German TV production that captures the cultural side of the late Weimar period very well.
Unsurprisingly, the film sanitizes things a little bit and makes it into a Liza Minnelli star vehicle--which actually improves on some book problems with the stage version but sort of makes it less interesting overall. Still worth a watch though. The stage version is still playing in London.
The play uses the idea of being able to phone another table as well.
https://www.youtube.com/watch?v=LdFasmBJYFg https://archive.org/details/BerlinSymphonyofaGreatCity