If the two teams do not have a network connection, one thing that you could create Team S is to create a client proxy server for the service, possibly in a separate assembly of the class library that imports the service ( Add Service Referencein Visual Studio).
Just send this source code to another team, and they should be able to create proxy clients and call methods for these clients.
-, . Mikecito answer - URL- + ?wsdl, WSDL - , .