V Urgent : Debugging an RFC function Module in another R/3 system

Hi All

I have a function module in a R/3 system ( say WB1 ) and i am calling it from another R/3 system (say WD1) . Both have their RFC destinations set up as trusted system mutually . However when i try to debug that FM while in WD1 ( which basically exists only in WB1) i am not able to get inside that FM . Are there some settings that we need to do to allow us to debug function module in another R/3 system ? .

Yes ,we cant do this debugging if RFC function module is in a non SAP system but am sure it can be done atleast for R/3 to R/3 .

Any pointers to this as to what setting needs to done ?

Does some system parameter needs to be set in RSPARAM program for debugging RFC?

Please help

Regards

Shovit