Linear AE-500 Telephone Entry Access Control The Model AE-500 Commercial Telephone Entry System is designed for use as a primary access control device for gated communities, parking garages, office buildings, apartments, dormitories, hotels/motels, commercial buildings and recreational facilities with up to 250 residents or users. Housed in a locked, rugged stainless steel faced enclosure, the AE-500 features a side-lit 12-key telephone style keypad with bright, easy-to-read graphics, a backlit two-line directory display with a programmable welcome message, a built-in microphone, and speaker. The two relay output channels can be programmed to control electric door strikes, magnetic locks, door & gate operators, or barrier gates. The system utilizes hands-free, full duplex telephone communications between visitors and residents for granting access. The system can be programmed locally using the keypad, remotely with a touch tone telephone, or remotely using a computer equipped with a modem and a web browser.