########################################################################
# ChangeLog:
#
#   2005-03-18: agranig: Initial version.
#   2005-03-21: agranig: Fixed handling of requests with interchanged From/To
#                        (not fully supported by uac module yet).
########################################################################

# ...

loadmodule "/path/to/ser/modules/group.so"
loadmodule "/path/to/ser/modules/uac.so"

modparam("uac", "from_restore_mode", 2)

route 
{
    # ...

    if(is_user_in("From", "clir"))
    {
        # anonymize a standard request
        uac_replace_from("Anonymous", "sip:anonymous@my.domain.com");
        t_on_reply("3");
    }
    # TODO: do we need this regex or is it save to let uac_restore_from() handle
    #       the presence of the vsf-param in the To-Header?
    else if(search("(To|t): \"Anonymous\" <sip:anonymous@my\.domain\.com.*vsf="))
    {
        # restore a subsequent request with interchanged From/To headers
        uac_restore_from();
        t_on_reply("4");
    }
    t_relay();
}

onreply_route[3] 
{
    uac_restore_from();
}

onreply_route[4] 
{
    # TODO: the anonymization of a response to an interchanged To/From-request
    #       isn't supported by uac yet!

    # uac_replace_from("Anonymous", "sip:anonymous@my.domain.com");
}