I need to cut leading "00" and ad a prefix "123" to an outgoing call to allow authentication to provider. I tried several scripts but non of them works.  Can somebody help me? Thanks from a SER novize! Regards Christian
 
Last one:
 

       # send out 00 prefix to wholesale psnt termination  VOIP
        if (uri=~"^sip:00[0-9].*@.*") {
               if (!is_user_in("From", "ld")) {
                       sl_send_reply("403", "Payment required");
                       break;
   strip(2);
   prefix("123");
 };
                setflag(1);
                rewritehostport("64.xxx.xxx.76:5060");
                if (!t_relay()) {
                        sl_reply_error();
                };
                break;
        };