[Users] Help with NATHelper module and fix_nated_contact() function

Hi, NatHelper documentation says fix_nated_contact is rewriting contact header with request source address:port but it seems the function doesn't work properly with my SER config... Indeed, when you analyze a SIP Request Packet you have the following : Message Header : Contact : <sip:352621@192.170.10.32:5060> #192.170.10.32:5060 is the private IP/Port and if this function was working properly, I understand you should get the following : Message Header : Contact: <sip:352621@80.114.25.8:2014> #80.114.25.8:2014 is the public IP/Port But the SIP packets that are getting out from SER Proxy to SIP Registrar Server have not their contact header field modified with public IP/Port... So, is the function not working ? or something else ? Thanks,