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ACD: (Automatic Call Distributor) A telephone system that manages incoming calls and distributes them based on caller commands or preferences. An ACD is a staple of call centers that need to direct calls to specific agent groups in sales, service, and support capacities.

ADSL: (Asymmetric Digital Subscriber Line) A version of Digital Subscriber Line (DSL), ADSL allocates greater resources to transmit data from the Internet to the user than it does from the user to the Internet. ADSL is most common for consumers, since they generally use their service to browse the Internet and the faster downstream speeds more closely meet their needs.

Adjunct: Any device added to an existing telephone extension, such as a Caller ID unit or a headset.

Algorithm : A problem-solving technique. Algorithms are characterized by a specific formula, finite length, and a clear end result and termination.

Amplifier: In general, any device that increases the voltage, current, or power of a signal. In telecom contexts, it refers to any device placed along a phone line that strengthens a voice signal. Most telephone headsets include an amplifier that provides both signal boosting (volume and transmit control) as well as tone control to adjust sound quality.

Amplifier settings: The brains of any headset system, the amplifier houses all the controls for your headset. When you first connect your system, you may need to adjust the amp settings, so your headset works with your specific phone or phone system. On some systems you just push a button, and the amp learns your phone, then sets itself up automatically. Others require simple manual adjustment via small switches that are usually located on the back, bottom, or side of the amplifier.

Analog: Refers to a continuous, variable sound wave that is used to transmit signals from one location to another. Television, radio, and telephones have traditionally used analog signals as their carrier waves, transmitting signals via modulation in amplitude (AM) or by modulation in frequency (FM)

Authentication: The process of confirming that an individual or computer is who or what it claims to be. Authentication of a person is typically handled by a password in the user log-in process. Knowledge of a private password is considered sufficient to verify the identity of the user. Authentication of a computer is a little more involved. Typical methods include hashing (a specific numeric code that represents the message or data being sent and changes if the data is altered in any way); digital signatures (specific to a computer); and digital certificates issued by a certificate and registration authority that include public/private key encryption. A combination of these methods currently provides the best available security.

Automated Attendant A "robot receptionist" that answers and routes incoming calls. This feature is often coupled with voice mail in order to provide answering and recording capabilities for calls that cannot be connected.

Background noise: You'll most often see this term when reading about noise-canceling microphones that filter out background noise. It refers to the everyday sounds that are all around you…people talking, papers shuffling, computer equipment buzzing, and so on. If your Mic transmitted all those sounds along with your voice it would probably be hard for the person on the other end to hear what you were saying.

Backup files: We recommend making copies of files that you've stored to a second medium (a CD or an e-mail server, for example) as a precaution, should the first medium fails. Anyone who has ever lost data knows it's well worth the time it takes to back up files regularly.

Band: A specific range of frequencies in the radio frequency (RF) spectrum. In the United States, the FCC regulates bands to minimize interference. Each band is assigned a range of transmission frequencies. For example, very high frequency (VHF), which is used for television and radio (AM and FM) transmission, may exist only on frequencies ranging from 30 to 300 MHz (Megahertz).

Bandwidth: 1) When used in reference to digital systems, bandwidth describes the amount of data that can be transmitted on a given path. The standard measurement in the digital transmission context is a multiple of bits per second. 2) In analog systems, bandwidth refers to the difference between the highest and lowest Frequency State (number of cycles per second or Hertz) used on any given signal within a band.

Belt Pack: A cordless headset style comprising 2 mobile components: a cordless pack that transmits and receives radio signals (transceiver), and a lightweight headset top. The radio pack generally has a clip that attaches to a belt or pocket, and is also attached by a cord that runs to the headset top. This headset style contrasts with the all-in-one cordless headset that has an integrated transceiver in the headset top.

Binary: A numbering scheme that only has 2 unique values: "0" and "1".

Binaural: A headset style that has 2 speakers—1 for each ear. Because having both ears covered allows the user to more fully concentrate on the caller without being distracted, a binaural headset is especially useful in noisy environments.

Bit: (Binary digit) - In digital signals, a bit represents the smallest piece of information that can be transmitted and is represented by either a "1" or a "0". A string of eight bits is commonly called a byte.

Bits per Second: (BPS or b/s) - A measure of how many digital bits ("1" or "0") that may be sent in the space of one second. These will be seen most commonly in measurements Kbps (kilobits, or thousands of bits, per second), Mbps (megabits, or millions) or Gbps (gigabits, or billions).

Bluetooth: A short-range radio specification that is used to network various electronic devices without wires. Bluetooth has been integrated into notebook computers, headsets, PDAs, and Local Area Networks (LANs) to enable interoperability, Internet access, and resource sharing.

Boot: The initial loading of a computer's operating system.

Bridge: A device that connects 2 Local Area Networks (LANs). Unlike a router, a bridge is used only in a LAN, never on larger networks. Another difference: a router sends packets to a specified location, whereas a bridge sends it to all destinations simultaneously.

Broadband: Any form of telecommunication that carries multiple channels over a single wired or wireless medium can be considered broadband. The term broadband is commonly used to describe high-speed access to multiple services, such as cable TV, telephone service, and data that are transmitted simultaneously.

Browser: A computer application that enables users to view and interact with information on the Internet.

Bus: In computer technology, a bus refers to a signal path that is shared by multiple devices or peripherals. Each device along the path only recognizes signals that are intended for that device, and effectively ignores any other signals along the path (see Universal Serial Bus).

Busy indicator or busy light: This accessory makes it very easy for people to tell when you're on a call-even when you're using the most discreet headset. It lights up, so they can see at a glance that you're busy and on the phone. It's a way to prevent interrupting the headset user and it's helpful for the folks who monitor group phone activity. The indicator works whenever you're on the phone, with or without a headset.


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Telephone Warehouse
Phone: 763.422.5000 ~ Fax: 763.422.2061
2371 7th Ave., Minneapolis, MN 55303

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