anchor.diff:          status = Status,
           start = nksip_lib:timestamp(),
           from = From,
  -        opts = Opts,
  +        opts = Opts1,
           trans_id = undefined,
           request = Req#sipmsg{dialog_id=DialogId},
           method = Method,
  
positive.code:     #sipmsg{to_tag=ToTag} = Req,
      #call{opts=#call_opts{app_opts=AppOpts, global_id=GlobalId}} = Call,
      NoDialog = lists:member(no_dialog, Opts),
      TestDialog = case NoDialog of
          true -> 
              ok;
  
negative.code:         _ -> trying
      end,
      IsProxy = case From of {fork, _} -> true; _ -> false end,
      Opts1 = case 
          IsProxy andalso (Method=='SUBSCRIBE' orelse Method=='NOTIFY') 
      of
          true -> [no_dialog|Opts];
          false -> Opts
      end,
      DialogId = nksip_call_uac_dialog:uac_id(Req, IsProxy, Call),
      UAC = #trans{
          id = Id,
  