Can we Get the WSDL through URLof external system

Hi,

my client has provided a URL for passing the messages in a synchronous mode.... so. i have to use SOAP adapter in the Receiver side ..

but with the only URL I'm not able to conect the client system..I'm getting Errors...

so.. i think if the SOAP adapter is Receiver side means WSDL is compulasry..

but my client was saying they can'not provide the WSDL..

so, with only the URL is it possible to conect the external system.....otherwise..

through that URL can we get teh WSDL code...

please suggest me some solution...

Regards

Jain