I had five of them, two males three females (have four females originally but one died unexpectedly...) The two males would compete with calling, was incredibly loud.
I never needed to do anything to get them to breed. I kept them quite dry but would spray them daily towards the evening. I used to keep them very well fed on a really good mix of live foods (they would hand feed which made it very easy to make sure they all got their fill. They lived at room temperature in my house (~20degrees) and I never noticed any seasonality. I had been warned that they are very prone to nutrient deficiencies, more so then any other amphibs and it seems to affect their eyes, so I was always very careful to sprinkle their food with vits/minerals.
Males would call every night. Amplexus would not last long, I rarely ever even saw it! Two of the three females were pretty much constantly brooding one after another, the third female never did anything. I had a water bowl (an old tuppaware box with some elodea) for them to release the tadpoles.
The tadpoles were raised on artemia, bloodwrom and fish pellets. They grew quickly but I did have problems with I high number of deformities in the froglets. Looking back now (with a lot more experience behind me) I should have done more to ensure they had a good vitamin/mineral intake, especially if they are more susceptible to problems.
Hope that helps a little. I will be watching out for a breeding topic to come up from you!