[SR-Users] How to print out all variables in case we reach this line?

[gh]

> If i call a mobil number:
> t: <sip:+4917625251111 at sip.heissa.de>.
>
> i get 404, but would expect rewrite to carrier route: 
> sip:+4917625251111 at sip.nexxtmobile.de
> Is there a way to print out all variables at this moment?
>
> ###########################################################
>   if ( is_method("ACK") ) {
>                 if ( t_check_trans() ) {
>                         # no loose-route, but stateful ACK;
>                         # must be an ACK after a 487
>                         # or e.g. 404 from upstream server
>                            route(RELAY);
>                         exit;
>                    } else {
>                            # ACK without matching transaction ... 
> ignore and discard
>                         exit;
>                 }
>            }
>         sl_send_reply("404", "Not here");
>         #How to print out all variables in case we reach this line???
>         exit;
> ###########################################################