When this game was released in the NA, in the intro screen you had VIVOX as built in game voice chat.
No one uses it.
No one can hear anyone in parties during the game when they do.
They use discord, because it works for alliances and fellow gamers alike.
So here is my suggestion....
During the next update, you get rid of VIVOX and put Discord as the official voice chat app for Phantasy Star Online 2, and make sure it is built in to New Genesis as well.
Because more gamers would play by doing so.
No one has ever heard of VIVOX here.
I'm sure that everyone here in these forums would agree with me.
Please make this possible.