Why is "Kellner" unacceptable ?
My question too.
It is accepted now.
Kellner is acceptable. Ive used it
What happened to "Herr Ober"
"Ober!" or "Herr Ober!" are correct in German
same as "Kellner!"
I think these answers must be added, nobody in Germany says Diener!
I don't think "Herr Ober" is used anymore in Germany.
Right. I'd say none of these are used anymore. They all sound kind of rude. Most people just say "Entschuldigung" with a rising inflection.
Yes. Waiters normally don't like it when you call them 'Bedienung' (Or "Kellner" or "Herr Ober"). I'd also vote for 'Entschuldigung'.
Herr Ober ??
If you're watching a movie from the 50s you might indeed hear it...
Or if you'd studied German from an Assimil course.