National Do Not Call List Phone Number Check - Version 1.3 Safe Caller is the leading phone number checking & dialing Do Not Call List Software for telemarketers.The software is able to read the phone numbers from most Windows applications (Act!, GoldMine, FileMaker, Notepad, Word, Excel, etc.); verifies their existence in the Do Not Call Registry (DNC) and offers the option to dial the checked number manually from your phone or PC!