-my @suppported_message_types = qw( message chat headline );
-my $message_type = 'message'; # default message type
+# http://tools.ietf.org/html/rfc3921#section-2 section 2.1.1 - Types of Message
+my @suppported_message_types = qw( chat error groupchat headline );
+my $message_type = 'chat'; # default message type