OSB - Error handling, report via service callout?

I'd like to use Report Action on any error happened in my services. I'd also like to keep only one Report Action to be able to change its configuration later easily if needed.
As it seems currently, if I add the Report Action to the Error Handler of the service directly, it logs the error code/reason/etc correctly, but if I move the Report Action to a separate service and add a service callout to the Error Handler instead of calling the Report Action directly, I lose the error information (I get the report message but error code/reason/details will be all NULL in the database).
Am I doing something wrong here? Is that a limitation of the product? Is there any solution to keep the report actions centralized in this case?
Thanks..

hi guys,
thanks for all the suggestions though it's still not working here. Hopefully clarifying the situation:
a) service -- error handler -- report error
b) service -- error handler -- service callout -- report error
a) works, b) does not.
The syndromes for not working is that the reported message has error code, reason and detail all empty (NULL if I look directly in the database). I suspect the problem is with my service callout in scenario b).
The service callout originally was made using the following parameters:
Request document variable: body
Response document variable: response
SOAP request header: header
SOAP response header: rheader
Reading your suggestions I tried to set the request document variable from 'body' to 'fault', but it did not help either: I get the report message but still no error information in the message.
How exactly should this service callout look like to properly transfer the error details to the called pipeline?

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