%S [&lt;room&gt;[@&lt;server&gt;][/&lt;nick&gt;]] [&lt;password&gt;]: Join a room, optionally providing a different server, or nickname, or the room password.
%S [&lt;canal&gt;[@&lt;servitor&gt;][/&lt;pseudo&gt;]] [&lt;contrasigno&gt;]: entrar in un canal forniente un servitor o un pseudonymo differente, o le contrasigno del canal.