To get a preview of who is knocking at your door without actually opening it, you can use a door peephole or consider a wireless video intercom that allows you to view and talk to a visitor from ...

Digital Acoustics' TalkMaster (version 1.5) PC console software is now available. The IP-based solution manages the company’s Ethernet intercom products. TalkMaster supports an array of ...

Anyone who attended a U.S. high school probably started each day with announcements over the intercom. Remember hearing about the daily cafeteria specials and reminders to turn in forms? Those ...