use SOAP::Lite;
print SOAP::Lite
    -> uri('http://www.soaplite.com/Demo')
    -> proxy('http://services.soaplite.com/hibye.cgi')
    -> hi()
    -> result;
my $soap = SOAP::Lite->proxy('http://endpoint.server/', 
        proxy => ['http' => 'http://my.proxy.server/']);