Thanks Jan, I Have probed the record_route_preset("200.24.99.131:lr") The server answers with a 200(OK) to the INVITE Method, but it doesn't to the BYE method, it responds a 408(Request Timeout). The ACK takes the route perfectly and it runs from UA to UA without any problems, however the Bye is received by the server(192.168.0.1) an then is sent to its public IP address (200.24.99.131) there is something I think is a problem!! The server is unable to extract from the via field the public IP address in the BYE so, it keeps sending the BYE package to itself instead of the next hop that it's supposed to do. Do you have any suggestions regarding this issue? Is there something wrong with the way i'm seeing things? I've been reading over and over the SIP RFC and i don't understand the behaveour of the SIP Proxy in this particular case; I'm currently using the 0.8.14. Should i use the CVS updated version??might there be a bug in the ftp version?? I have tested the (set_)advertised_address without success. Thanks a lot for any information you could give me. I'll be waiting for your reply Andres Parra _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com