anchor.diff:  %%          {stop, Reason}
   %%--------------------------------------------------------------------
   init([]) ->
  -    timer:apply_interval(60000, siplocation, remove_expired_phones, []),
  +    timer:apply_interval(60000, phone, remove_expired_phones, []),
       logger:log(debug, "Registrar started"),
       {ok, #state{}}.
   
  
positive.code: %% Description: Shutdown the server
  %% Returns: any (ignored by gen_server)
  %%--------------------------------------------------------------------
  terminate(Reason, State) ->
      case Reason of
  	normal -> true;
  	_ -> logger:log(error, "Registrar terminating : ~p", [Reason])
  
negative.code: %% Purpose: Convert process state when code is changed
  %% Returns: {ok, NewState}
  %%--------------------------------------------------------------------
  code_change(_OldVsn, State, _Extra) ->
      {ok, State}.
  
  %%--------------------------------------------------------------------
  