I can not get data on SOAP Perl-ohm (SOAP :: Lite)

Perl hardly know, SOAP is also so-so. Asked for help, we have to understand. I try this simplest code:

using strict; using SOAP; my $soap = SOAP::Lite->new(proxy => 'http://86.57.245.235/TimeTable/Service.asmx'); $soap->service('http://86.57.245.235/TimeTable/Service.asmx?WSDL'); $soap->ns('http://webservices.belavia.by/'); my $retval = $soap->GetAirportsList('RU'); 

to get data. WSDL lies here - http://86.57.245.235/TimeTable/Service.asmx?WSDL . The most crucial piece of WSDL is here:

 <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://webservices.belavia.by/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://webservices.belavia.by/"> ....... <wsdl:binding name="OnlineTimeTableSoap" type="tns:OnlineTimeTableSoap"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/> <wsdl:operation name="GetTimeTable">...</wsdl:operation> <wsdl:operation name="GetAirportsList"> <soap:operation soapAction="http://webservices.belavia.by/GetAirportsList" style="document"/> 

In the debugger, you can see that the WSDL scheme is loaded, the object and the necessary methods are visible in it, but the following error description comes in response:

 "Сервер не распознал значение заголовка HTTP SOAPAction:http://webservices.belavia.by/#GetAirportsList." 

Ie, something I am doing wrong. The question is what?