I can successfully make an RPC method call with Jabber::RPC::Client but I would rather use Net::Jabber::Client but the authorization seems to fail. Any ideas?

Using Jabber::RPC::Client

use Jabber::RPC::Client; 
my $client = Jabber::RPC::Client->new(server=>'localhost',   
                                      identauth=>'emsng:emsng', 
                                      endpoint=>'dst@localhost/XMLRPC'
+, ); 

my $response = $client->call('CreateContext', { 
                             ApplicationName=>'EMSng',  
                             MaxIdleDuration=>'5' } ); 

print $response || $client->lastfault, "\n";
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Using Net::Jabber::Client

use Net::Jabber qw( Client ); 

my $client = Net::Jabber::Client->new(); 
my $status; 

$client->Connect(hostname=>'localhost'); 

if($client->Connected()) { 
     $status = $client->AuthSend(username=>'emsng', 
                                 password=>'emsng'); 
      my @response =  
               $client->RPCCall(to=>'dst@localhost/XMLRPC', 
                                methodname=>'CreateContext',  
                                params=>[ { 
                                ApplicationName=>'EMSngTEST', 
                                MaxIdleDuration=>'5' } ] ); 
      die Dumper(\@response); 
}
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Response when use Net::Jabber::Client

<packet xmlns="http://www.jivesoftware.org" streamID="94d182bf" status
+="connected" timestamp="Mar 1, 2006 11:36:52 AM"><iq xmlns="" type="e
+rror" id="netjabber-0" to="localhost/94d182bf"><query xmlns="jabber:i
+q:rpc"><methodCall><methodName>CreateContext</methodName><param s><pa
+ram><value><struct><member><name>MaxIdleDuration</name><value><i4>5</
+i4></value></member><memb +er><name>Ap plicationName</name><value><st
+ring>EMSngTEST</string></value></member></struct></value></param></pa
+ +rams></meth odCall></query><error code="401" type="auth"><not-autho
+rized xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></er ror></iq></pa
+cket>
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Edited by planetscape - added readmore tags and minor adjustments to formatting