Voice only. Still the most anonymous option there is.
No profile currently mentions Phone sex in its advert in or around Zerbst.
That changes quickly — new profiles arrive daily. In the meantime, try the search page, or browse the full offering around Zerbst.
If you cannot find what you are looking for in Zerbst itself, the rest of the state of Sachsen-Anhalt is quickly within reach. The nearest places with their own listings are Dessau (18 km), Schönebeck (25 km), Köthen (25 km).
Voice only. Still the most anonymous option there is. Nothing here for you? Have a look at the other services or widen your search area.