derivedDataType MtasString1to255DT

References from:

MtasCarrierRn; MtasCommonDataAllowedAccessNetworkTypes; MtasCpsCallType; MtasDnmShortCode; MtasNaRa; MtasPriorityCallGetsService; MtasPrIw; MtasStCarrierRn; VtasNaRa; VtasPriorityCallGetsService;