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  2. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    Door phone plates consist of a matrix of buttons. each of them drive a buzzer located in a unit inside each apartment building. Each apartment building contains a button that can activate the electric strike. There are several installation systems, the most traditional being a system known as 4 + 1, named for the types of wiring that it ...

  3. Z-Wave - Wikipedia

    en.wikipedia.org/wiki/Z-Wave

    Z-Wave is a wireless communications protocol used primarily for residential and commercial building automation. It is a mesh network using low-energy radio waves to communicate from device to device, [2] allowing for wireless control of smart home devices, such as smart lights, security systems, thermostats, sensors, smart door locks, and garage door openers.

  4. Wireless intercom - Wikipedia

    en.wikipedia.org/wiki/Wireless_intercom

    Another reason is the increased portability of a wireless system. With battery-powered radio frequency wireless intercom units, a person can carry a station as they walk around. One of the challenges of a wireless system is the possibility of interference. Radio frequency wireless systems may get interference from other wireless devices.

  5. Intercom - Wikipedia

    en.wikipedia.org/wiki/Intercom

    A butler uses an intercom on behalf of a lady. An intercom, also called an intercommunication device, intercommunicator, or interphone, is a stand-alone voice communications system for use within a building, small collection of buildings or portably within a small coverage area, which functions independently of the public telephone network. [1]

  6. Chamberlain Group - Wikipedia

    en.wikipedia.org/wiki/Chamberlain_Group

    Chamberlain's "myQ" technology is embedded in garage door openers and lights, [5] can be added to Wi-Fi networks to control these devices and is being incorporated into future home products, all through a monthly subscription. [6]

  7. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    AOL Desktop Gold is included at no additional cost with your membership. 1. Sign in to your MyBenefits page. 2. Under 'All Products' scroll to 'AOL Desktop Gold'. 3. Click Download Now. 4. Follow the installation steps listed below.

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