I have not heard any calling from them yet. I did have a listen to a WAV file of microps, so I am assuming bifasciatus may have similar call.
They are kept in a large critter keeper in which I have made a false bottom. (See my red-eye article on how to make a false bottom) The substrate is sphagnum over "hydro-balls" or LECA. They have a few plastic plants and a PVC cap with holes drilled it, it serves as a hide box, they barely use it these days. There is a water bowl with a fake plant in it. Thats pretty much it.