Model VD-100 stores and dials up to 4 telephone numbers and/or pager numbers. Each number may contain up to 32 digits (channels 1-4, total digits include a "pause" for pagers and the ability to program the "pound" tone."

Once a connection is made, the dialer will deliver a recorded voice message of up to 16 seconds or a numeric code to each number stored. The dialer will repeat the voice message 2 times per call to ensure that a full message is delivered. If the phone number is busy or not answered within 8-10 rings, VD-100 will automatically dial the next programmed number.

Assuming a continued activation state, the dialer will go through the numbers a second time, and call continuously until message is delivered twice to each programmed number. If any numbers are busy or unanswered, the dialer will continue calling (up to 8 times) in an attempt to deliver the voice message until the alarm conditions is terminated.

During the process, the respective channel numbers and telephone numbers will appear in the LCD to show the calls are in process.