Voice only. Still the most anonymous option there is.
No profile currently mentions Phone sex in its advert in or around Gießen.
That changes quickly — new profiles arrive daily. In the meantime, try the search page, or browse the full offering around Gießen.
If you cannot find what you are looking for in Gießen itself, the rest of the state of Hessen is quickly within reach. The nearest places with their own listings are Wetzlar (12 km), Butzbach (17 km), Bad Nauheim (25 km), Marburg (26 km), Herborn (28 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.