Need I to register a nick to get all voice ?

ishare <[email protected]> Fri, 8 Mar 2013 22:42:19 +0800
Newsgroups gmane.network.irc.irssi.user
Message-ID <[email protected]>
 Do I need to register a nick on the irc server to chat normally?
 I can not receive msg and send msg in a room,because there is 0 voice of member.

 what can I do to diagnose for this?