It’s pretty. It sounds very trendy with all the connections to [name]Ava[/name], [name]Amaya[/name], even [name]Nevaeh[/name] etc.
That is cool it has history and meaning in two very different traditions however.
I can see some people pronouncing this a - VIE - a.
I think a VAY a is maybe a little more intuitive from Avaia spelling (ironically), but I think Avaya looks a little better, the i gets kind of lost between the a’s in Avaia…or like I want to say [name]Ava[/name] -ee- a or something bizarre.
I’ve never heard of it, but I would pronounce it a-VIE-a instinctively with either spelling. Isn’t there a bottled water called Avaya? That’s the first thing I thought of, though it’s not a bad thing.