Ah zeraph you must've logged out of pvp.net chat.
If you don't think something is working properly, go to the chatroom part of your friends list (the right button). If you see 0 players in everything, you need to relog your client to be able to talk to anyone. They'll be fixing this bug soon.
Also, if you want to talk to us on vent without a mic, use comments
.
Sorry that we missed you. I assume you still wanted to play with us: but when you are logged out of the chat, we can't see you to invite you to a game
.