Viking VK-SP326 Tr-1 With Nen Chip

-Phone line poweredNon-volatile E 2 memoryCompatible with Touch Tone or rotary phones, etc.5 to 49.5 minute call timer with disconnectProgrammable allow or restrict table stores up to forty 12-digit phone numbers, prefixes or area codes6 digit bypass code for single call overrideProgrammable to ignore phone system line access numbersProgrammable ignore table stores up to twelve 12-digit phone numbersProgrammable maximum digit string lengthConcealed in a standard RJ11C jackAllow or restrict 1-800 numbersOperational alert tonesAllows emergency and toll free numbersMade in the USAOne year warranty