Of course, the musical Cabaret as well. Based on Christopher Isherwood's writings.
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.
