Speaker Phone, Line Powered 2 Way Handsfree/Weather Resist
The Viking Electronics E-10-EWP door entry speakerphone is similar to the E-20A-EWP, just a different look. These door entry systems are designed to provide hands free communication, and are typically used to facilitate entry into a building so you know who is there, and, what they want. With an electronic door strike, you might also be able to let the person into the bulding remotely as well.