How to logoff a session created by RFC

Hi All,

I'm using an RFC to call a funtion in another server and is working right now using a logical destination, but I have a problem with the session, everytime when the user execute this funtion to a come back to R/3, CRM server keep the session alive. I would like to know if the is a way to close the session when the user comes back to R/3.

This is the fuction that I'm using

CALL FUNCTION 'Z_FTT_ZTB1_FIND_RECORD' DESTINATION l_logsys

EXPORTING

i_claim = ztsgendat-zzclaim

IMPORTING

brc_documentid = l_bapiguid

brc_documentclas = l_bapidclass.

Thanks in advance

Kind Regards

Alexis