$con->PresenceSend(type => "unavailable");

##</code><code>##

$con->PresenceSend(type => "available");

##</code><code>##

$con->PresenceSend(to => 'mh@mh.com');

##</code><code>##

$con->PresenceSend(type => "available", to => 'mh@mh.com');