Hey Rob,
All the trivs have a variable repetoire of calls, the males will do the long trill call just like other Epipes. They also do the "clucking" or clicking sounds like a slow drip. Plus there are various squeking and chirping calls when they are wrestling and chasing each other. My reds mostly call in the early morning, the greens in early evening and the oranges are the most vocal group I have, lots of posturing and vocals when I feed them, the dominant female chases the others away from the food, to no avail of course.
Eric