110-120 is the best you can hope for over 3200(ish)km. I did a rough calculation and reckoned 106mS (32000000m/299792458 m/S).
The main thing is with Wavespeed, the ping is constant so you can make allowances for the lag in game. With Netrunner, it was all over the place.
I use Teamspeak for VOIP, find the ingame ones a bit lame.