I'm a software guy but I'm not very knowledgeable about BBO (other than programing the deal engine for bidding practice, which is very handy). Today, I was playing socially and had a tricky decision at trick two. As I thought it over, the table suddenly disappeared and shortly thereafter the table host and her partner vanished, leaving only my partner. I never even saw the "It's your turn" or whatnot pester. The other players claim I was replaced by a robot and I don't quite know what happened after that. Maybe they gave up. Maybe the table host had a connection glitz. Maybe the server was overloaded (had about 28,000 players at the time). I don't know. None of them are BBO regulars. I'm usually not the slow one face to face, but decent bridge has a certain tempo. Once in a while, declarer or a defender needs to think for a bit, then a bunch of tricks get played quickly, and often a claim is made. Even with the occasional tank, the hand usually finishes well under the seven minute / board at a typical club game. Two questions: (1) Does the table host have any control over when / whether a robot is substituted in? (2) Does BBO send any kind of keep-alive to distinguish between a dead connection and a player who might be thinking? One more question: I'm inclined to try the Voice option (alternative to the chat box) which I've seen at bidding practice tables. But I wonder if this will just burden the BBO servers at time when it is already busy. Are the voice packets routed through the BBO server or is the system smart enough to send them peer to peer? I suppose I can tell my browser to log all the SSL keys to decrypt a Wireshark packet capture and investigate myself but I don't want to bring out the heavy guns if someone already knows the answers.