anchor.diff:      RegContact = Base#reg_contact{
           index = Index,
           contact = Contact#uri{ext_opts=Opts1},
  -        expire = Expire, 
  +        expire = Now + Expires, 
           q = Q
       },
       gen_regcontacts(Rest, Base, Times, ObProc, [RegContact|Acc]);
  
positive.code:                 _ -> Default
              end
      end,
      Expire = if
          UriExp==0 -> 0;
          UriExp>0, UriExp<3600, UriExp<Min -> throw({interval_too_brief, Min});
          UriExp>Max -> Now+Max;
          true -> Now+UriExp
      end,
      Q = case nksip_lib:get_list(<<"q">>, Opts) of
          [] -> 
  
negative.code:     Routes2 = http_uri:encode(binary_to_list(Route1)),
      Headers1 = [{<<"Route">>, Routes2}|Headers],
      Contact#uri{headers=Headers1}.
  
  
  %% @private
  