How to call Web service

Hi,

I want to use a Web service as a data service within Visual Composer. Therefore I tried to click on <b>"Define Web service system"</b>. In the following PopUp I have to insert a <b>system name</b>, a <b>system alias</b> and the <b>Web service url</b>. Unfortunatly I don't know what to put in. The only thing I know is that the url of the Web service is either http://pc1239:50000/ReportSearch/Config1?wsdl or http://pc1239:50000/ReportSearch/Config1?style=document? What do I have to insert in the fields <b>system name</b> and <b>system alias</b>? And which one of the two urls is the right one?

Thanks and regards,

Marc