I posted Build 20200713 of Allspace. This build includes the following improvements:
1) Implemented some minor performance improvements in match making server.
2) Added Voice Chat feature.
3) Change default key for target locking from T to L.
4) Added default Push to Talk key T.
5) Voice Chat volume and push to talk mode can be selected through the Audio screen in the Main Menu of Allspace.
Note: The Voice Chat feature uses the Vivox middleware, which is also used by popular games like PUBG and Fortnite. Vivox supports PC and Mac, but unfortunately not Linux yet.