Detailed GTA Online Network Analysis for PS3 (X-Post from /r/gtaonline) : gamedev: "Voice comms appears to be controlled simple STUN (http://en.wikipedia.org/wiki/STUN) requests handled by Sony network servers, so the voice side of things is offloaded entirely to Sony (probably a dev API). This effectively eliminates any need for port forwarding on all but the most esoteric or ancient routers."
'via Blog this'
