To help the Crewmates identify Impostors, there are various surveillance systems in each map, such as a security camera system on The Skeld, a doorlog in Mira HQ, and a vitals indicator in Polus. Crewmates may also confirm their identity through visual tasks, which cannot be faked by Impostors. Any living player may call a group meeting by reporting a dead body, or by pressing a button in the map at any time (except when a sabotage is in progress). This halts all other gameplay. In the meeting, players discuss who they believe is an Impostor based on the available evidence. A plurality vote is held, and the chosen player is ejected from the map and dies. Players can communicate in a text chat, but only during meetings, and only if they are alive (though ghosts can speak with one another at any time). While the game does not have a built-in voice chat system, it is common for players to use external programs such as Discord while playing.