The law itself does not specify the level, it grant the authority do decide to the relevant authorities. (For example the administration in Berlin), so things will vary depending on where you are.
Generally speaking I haven't had any problem finding a cab in Berlin. The longest wait was after a thunderstorm took out most of the public transport a couple of years ago and that took like 20 minutes somewhere in the outskirts. I usually either flag one down on the road or use the smartphone app.
Generally speaking I haven't had any problem finding a cab in Berlin. The longest wait was after a thunderstorm took out most of the public transport a couple of years ago and that took like 20 minutes somewhere in the outskirts. I usually either flag one down on the road or use the smartphone app.