Linear, by Nortek Security Control (formerly Linear)
"The ideal access control system balances the competing demands for security and convenience. It fulfills a wide range of functional requirement with minimum system complexity. It integrates high performance, reliability, and flexibility in equal measure. It is technically advanced yet functionally simple. It is backed by the design, engineering, and production resources of an acknowledged security and control technology leader. All of which accurately defines every access control solution that Linear delivers."

Viscount MESH, by Viscount Systems
"A first impression is a lasting Impression. MESH Enterphone (Telephone Entry) System incorporates a high resolution touch screen that clearly guides a visitor. The screen, which is viewable in direct sunlight can also be used for high-end advertising. MESH Enterphones are available to fit a building entrance, including free-standing pedestals and lobby Directory versions."

Siedle
"Hearing is good. Seeing is safer. Taking an unmistakable close look beats asking "who is it?" every time. A video surveillance system provides a significant gain in terms of both security and convenience over conventional intercom systems. And all with the added bonus of the outstanding installation and design versatility offered by Siedle's systems."