The K-1900-30 is an automatic dialer that dials a 1-20 digit phone number, and can be programmed to call up to 4 additional phone numbers if the line is busy, or is not answered. The K-1900-30 can be used to add the smart dialing features of a Viking Model E-30, to other non-dialing entry phones such as the E-10A, E-20B, E-40 series, E-50 series, E-60 series, E-70 series, K-1500 series phones, etc.

The K-1900-30 connects directly to an analog CO line, Analog PBX station, or analog port of a VOIP adapter, and works with any analog phone. Touch Tone programming can be done locally, or remotely by calling into the unit. A Touch Tone identification number can be programmed to help identify the location of the call.