Is it possible to see if a web service uses SOAP 1.1 or 1.2, based on the information in the WSDL?
I have found this page
http://schemas.xmlsoap.org/wsdl/soap12/soap12WSDL.htm
which says that Soap 1.2 uses the new namespace http://schemas.xmlsoap.org/wsdl/soap12/
It is in the 'WSDL 1.1 Binding extension for SOAP 1.1'.