Perfect for use with the Apex Destiny 6100 security system, this dialer is designed to call a human-being, as opposed to a monitoring company. Connects easily to most security systems (power and trigger connections). Calls up to four voice lines or leaves pages at up to four pager numbers (mix-n-match). For voice-line calls, plays outgoing message (up to 16 seconds) and allows listen-in and two-way conversations. For pager calls, dials up to 20 digits (28 for position 4), including pauses and '#' tones.