New Clariication Issue on Service enforcement of Reliabiliy agreement

I just realized a new issue for clarification:


What is the expected service behavior when the client does not respect 
the agreemen (i.e, contract) specified for a web service (conveyed 
through whatever means)?

In this case, is it required that the service send a fault OR is it up 
to the service implementation to decide. This has conformance 
implications for the service.

Example:
   a service that requires the use of callback (as specified in the 
service contract) receives a message that uses another mechanism for 
reply,    can the service still process the message OR it it required to 
fault?

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Tom Rutt		email: ; 
Tel: +1 732 801 5744          Fax: +1 732 774 5133