So it appears the process of reverse engineering the XBAND modem has made some break through recently, finally being able to get the modem to connect. Hopefully this should be the start of fully reviving XBAND which could mean Sega Genesis XBAND would be back online (Genesis Game Nights?) + the possibility of Sega Saturn Japanese XBAND could be fully revived too
https://www.youtube.com/watch?v=dEYL6rpkdTA