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Video Conferencing Glossary

A video conferencing glossary is a list of terms and definitions related to virtual meetings that include audio and video. These terms typically describe the technology, hardware, and software involved in video conferencing, as well as the various features and functions used during virtual meetings. The purpose of a video conferencing glossary is to provide a common understanding of the language used in video conferencing, and to help people effectively communicate and collaborate during virtual meetings.

acoustic safety
The measures taken to protect hearing from harmful levels of acoustic noise.

active noise-cancellation (ANC)
The reduction of unwanted low-frequency background noise by means of an electronic circuit.

advanced audio distribution profile (A2DP)
A Bluetooth profile that enables the wireless transfer of high-quality audio signals, such as music, between a headset and a supported Bluetooth device.

ambient noise
Background noise.

Refers to a wearing style for a headset that features a neckband.

audio cable
A cable that connects portable devices and carries audio signals.

audio enhancer
A device that increases call quality on a deskphone or softphone.

audio jack
A phone connector that is used for an audio cable.

audio streaming
Hearing real-time audio such as music, podcasts and GPS directions.

automatic volume control (AVC)
The automatic adjustment of the volume of an audio signal, depending on the level of ambient noise.

audio video remote control profile (AVRCP)
Refers to the Bluetooth profile that provides a headset with the capability to:
Play music
Pause music
Stop music
Skip to the next or previous track

A docking and charging stand for a headset. Some bases also work as a connection station for deskphones, softphones and smartphones/tablets.

Refers to a headset wearing style where the device stays in place due to a design that wraps behind the ear.

Refers to a headset wearing style where the device is worn over one of the ears and then supported by a headband around the back of the head (rather than over the head).

A standard for the short-range wireless interconnection of mobile phones, computers and other electronic devices.

Bluetooth adapter
A plug-and-play device that plugs into a USB port on a computer and enables a Bluetooth connection between the computer and a


Bluetooth profile
Refers to the ways in which Bluetooth-enabled devices communicate with each other to provide functionality and features.

Bone conduction
The transfer of sound to the inner ear primarily through the bones of the skull.

A headset part that supports a microphone and which may be movable.

A light built into a headset that activates if you are on a call (or if you self-activate it) to let others know you are busy.

Call analytics
The measurement, collection and analysis of phone call data to monitor call handling.

Call control unit
A unit that is separate from a headset and that enables calls to be controlled.

Call merging
The process of adding an incoming call to a current call.

Caller ID
A phone service that identifies the number of a caller for an incoming call.

Certified for Skype for Business
Refers to a device that meets the Microsoft standard for use with Skype for Business.

Collaboration application
The integration of collaboration and communication services that are exchanged over an enterprise network, for example, web and video conferencing, instant messaging, and presence information.

Commute Moment
A sound profile within the app, which is designed to ensure that the connected device is providing sound that is optimised for the wearer's environment when they are commuting.

Compatibility guide
A reference guide that establishes which products are compatible with other products, services and accessories.

Conference call
A phone call in which you can talk to one or more people at the same time.

Conference mode
A function for a wireless DECT base solution in which one to three additional base compatible headsets can be connected to the master base. The connected participants can listen and talk to each other during a phone or conference call.

The ability to connect a headset or base to additional devices and systems.

Refers to the adaptable wearing style of a headset. For example, you can wear the headset attached to a headband, neckband or earhook.

Refers to a headset style that uses a cable to connect to an audio source such as a phone or music.

Decibel (dB)
A unit used to measure the intensity of a sound or the power level of an electrical signal.

DECT (digital enhanced cordless telecommunications)
A high-quality wireless radio technology used to transmit signals between a headset and a base.

DECT density
The concentration of headsets using DECT technology that are installed in an area.

Desk phone
A stationary phone that sits on a desk or table.

Dial tone switch
A switch on a headset base that is used to find the dial tone of a desk phone and adjust the audio clarity.

Digital headset
A headset that has the processing chip located in the headset instead of in the control unit or cord. This location enables enhanced audio, functionality and user experience.

Digital signal processing (DSP)
The digital processing of audio signals by an audio device to improve the sound.

digital zoom
A method of digitally manipulating the frame of a video or photograph to make a certain section/part of the image larger or smaller, by zooming in or out.

Refers to a headset that has two earpieces. A mono signal is transmitted to both earpieces.

A device consisting of a speaker/pair of speakers inserted in the ear(s) and used for listening to audio such as music or speech. Earbuds are equipped with a microphone and can also be used for phone communication. See also: 'earphones', 'headphones', 'headset'.

A soft headset part that is designed to channel sound directly into the ear.

A headset part that wraps over and around the ear to secure the headset.

An earbud accessory that braces the earbud within the outer ear for a more secure fit.

Electronic hook switch (EHS)
A cable solution that connects a wireless headset base and a desk phone, enabling call control functionality directly on the headset.

In sound reproduction, hardware or software that allows a user to adjust the frequencies of recorded sound, to improve or customise his or her listening experience.

Federal information processing standards (FIPS)
The standards set by the US government for use in computer systems supplied by government contractors. Some DECT products are FIPS compliant.

Field of View (FoV)
Refers to the amount of the observable world which is visible at any given moment. When used in reference to video/camera technology, it refers to how much of the observable world is visible on the screen.

Find my car
A  feature that uses geo-tagging.

Full Duplex
Refers to the two-way transmission of audio when talking on a speakerphone, which allows everyone to speak and be heard simultaneously.

Half Duplex
Refers to the one-way transmission of audio when talking on a speakerphone, which means only one person on a call can speak and be heard at a time.

A portable wireless phone or the part of a desk phone that contains the mouthpiece and earpiece.

High-Definition Multimedia Interface - a method of transmitting high-definition audio and video to a compatible device, such as a HD television or HD computer monitor.

HD Voice
Refers to high-definition voice quality for audio. Call technology that carries voice data in a wider band of frequencies. Also known as 'wideband'.

The part of a headset that goes over the head (or around the back of it) and supports the earpieces.

A device consisting of a speaker/pair of speakers worn on, around, or in the ear(s) and used for listening to audio such as music or speech. Headphones are equipped with a microphone and can also be used for phone communication. See also: 'earbuds', 'earphones', 'headset'.

A device consisting of a speaker/pair of speakers worn on, around, or in the ear(s) and typically equipped with a microphone boom arm. A headset is used for Enterprise phone communication in particular where the focus is on reducing ambient noise that is picked up from a user’s surroundings. See also: 'earbuds', 'earphones', 'headphones'.

Headset port
The port on a desk phone where you connect a headset.

Hearing protection
Refers to the technologies and standards that are applied to  earbuds/headphones/headsets to protect user hearing and safety.

An office layout in which multiple workers use a single physical work station during different time periods.

huddle room
"A small meeting room, typically seating up to 8 people and equipped with teleconferencing and collaboration technologies."

In-car speakerphone
A portable device used for sending and receiving audio in a car.

Refers to the wearing style of an earbud, which you insert and wear in your ear. Also known as 'in-ear'.

IP (ingress protection) rating
A standard that rates the degree of protection provided by a device against the intrusion of solid objects, dust, accidental contact and water. For example, the IP56 rating has high resistance to dust and water.

Refers to a synthetic material that feels like leather. For example, 'leather-feel' ear cushions on a headset.

LED indicator
The lights on a device that indicate the status of specific functions.

Microphone guidance
Live, onscreen feedback during a call that informs the headset user how to adjust the position of the microphone boom-arm to get the best audio performance.

Refers to a headset that has one earpiece.

Mono mode
The ability to use either one of a pair of true wireless earbuds, independently of the other.

Motion sensor
A built-in sensor that automatically detects when a device is put on or taken off the head. This enables the device to perform certain actions in response. For example, pausing or playing audio, answering or muting calls or enabling sleep mode.

Refers to the ability to pair your device with up to eight separate Bluetooth devices, and to be actively connected to two devices simultaneously. The technical term for this function is 'multipoint'.

Bluetooth technology that enables pairing and connection between a headset and two devices simultaneously. Audio is transmitted from only one device at a time.

MultiSensor Voice
A technology that automatically cancels out wind noise when you are on a call. It combines powerful microphones, an advanced Voice Pick Up (VPU) sensor in each earbud, bone conduction sensors, and unique algorithms.

A feature that enables connectivity between a headset/headphones/earbuds and multiple telephony devices.

Telecommunication that carries voice information in a narrow band of frequencies, as opposed to HD Voice (wideband).

Near field communication (NFC)
A set of communication protocols that enables two electronic devices to establish communication.

The part of a headset that goes around the back of the neck and supports the earbuds.

The levels of noise that people are exposed to while working. Or refers to region-specific regulations that control these levels of noise.

Technology that reduces the level of ambient noise you hear when wearing a headset.

noise-cancelling microphone
A microphone that is designed to filter out ambient noise from the sound of a voice.

Omni-directional microphone
A microphone that receives sound from all sides and directions.

On-ear detection
A feature that automatically detects when the headphones are put on or taken off and performs certain actions in response. For example, pausing or playing audio, answering or muting calls or enabling sleep mode.

A method of storing data or software so that it is accessible locally on the computers of the people or organization using the software, instead of at a remote facility such as a server farm or cloud.

Refers to a wearing style of headset where the earcups sit on but do not enclose the ear.

Over the air (OTA)
Refers to the wireless transmission and receipt of information and signals. Used, for example, to distribute firmware updates to mobile devices.

Refers to a wearing style of headset where the earcups completely cover and enclose the ear.

The process of establishing a wireless connection between two Bluetooth-enabled devices.

Pairing mode
Refers to the state of a device when it is searching for other Bluetooth devices to pair with.

A screen resolution that is equivalent to two 1080p displays side by side, joined together using real-time image stitching.

Pan-Tilt-Zoom (PTZ)
Physical movements of a camera which allow a user to control and position the camera for a particular view. Pan refers to the horizontal movement of the lens. Tilt refers to the vertical movement of the lens. Zoom refers to the adjustment of the focal length of the lens to make a subject appear closer or further away.

Passive noise cancellation (PNC)
The reduction of high-frequency noise in the headset speakers based on the physical design (size, diameter, shape, material) of the earcups.

The smallest single component of a digital image.

Refers to devices that work when first used or connected. There is no need for additional software or configuration to attain full functionality.

Public switched telephone network (PSTN)
The aggregate of the world's circuit-switched telephone networks that are operated by national, regional or local telephony operators, providing infrastructure and services for public telecommunication.

Push-to-talk (PTT)
A method of telecommunications that uses a headset button to switch between voice reception and voice transmission modes. In default mode (the button is not pressed) the microphone is muted. To transmit voice, the user presses the button.

quick disconnect (QD) cable
A cable that seamlessly connects a corded headset to a phone and which may also have functions to control the headset.

real-time image stitching
Refers to the process of seamlessly joining live video feeds from multiple cameras to create one image with a total field of view of 180°, without interrupting the live video feed or distorting the final image.

remote call control (RCC)
The ability to control a device, such as a phone or speakerphone, using a headset.

remote handset lifter (RHL)
A device that enables remote call control of a desk phone from a wireless headset by automatically lifting the handset of the desk phone off the hook. The device is connected to the base.

Room System
A system, made up of a camera and tablet, designed to allow people to join virtual meetings in a meeting room without needing to bring their own device.

Enhanced audio protection for a headset that ensures a safe listening level and meets the EU and US safety requirements for Noise at Work legislation.

SafeTone G616
Enhanced hearing protection for headset users, that ensures a safe listening level while following the Australian regulatory requirements for telecommunications equipment guidelines.

Software-based telephony that allows a user to make phone calls over the internet using a computer.

A combination speaker and microphone that allows you to remotely control calls on a connected phone.

Standby time
The amount of time a wireless audio device can remain powered on while not being used for calls, especially in relation to the capacity of the battery.

Refers to sound that comes through two or more speakers so that it seems to surround the listener and come from more than one source.

Surrounding audio
The ambient noise which can be heard in your immediate surroundings.

The amount of time a wireless audio device can be used for calls, especially in relation to the capacity of the battery.

Target phone
The phone that is used to answer incoming calls if multiple phones are connected.

As an aid to hearing aid users, a headset is equipped with a telecoil that supports a compatible hearing aid, thereby enhancing the sound quality from the phone.

True wireless
Refers to Bluetooth earbuds that do not have a cord connecting them to each other or to an audio device.

Ultra-Noise-Cancelling (UNC)
Refers to noise-cancelling qualities of microphones designed specifically for use in high noise environments, which can prevent the transmission of almost all background noise.

Unified Communications (UC)
The integration of communication services that are exchanged over an enterprise network. For example, web and video conferencing, instant messaging and presence information.

US military standard
The set of standards set by the U.S. Department of Defence that ensures products meet certain requirements.

Video conferencing
A technology that allows two or more locations to communicate via live, simultaneous, two-way video and audio transmissions.

Video conferencing application (VC)
A type of collaboration application in which it is possible to communicate and collaborate via video. Also referred to as video conferencing.

Video resolution
The number of pixels, or individual digital components, that are contained within a video display, determining the visual quality of the video. The more pixels, the higher the pixel density, the better the video quality/resolution.

Voice assistant
Voice activated software on a smartphone or other device that can supply information and perform certain types of tasks for the user. For example, Google Assistant™, Siri®, MS Cortana, Amazon Alexa.

Voice control
A spoken command a user can give to control a headset function. For example, 'Answer' to answer a call. Also means the ability to enable spoken commands to smartphone systems such as Siri, Google Now or Cortana.

Voice guidance
Voice announcements from a device that help you use the device.

Voice over IP phone (VoIP)
A technology that uses the internet for telephone or video conferencing communication.

wearing style
The style in which a audio device can be worn. For example, 'around-the-neck', 'over-the-ear'.

Refers to a view which is wider than usual. It can refer to a specific lens for a camera, designed to capture a wide-angle view, or it can also refer to the resulting video or imagery, for example: "this is a wide-angle shot of the product."

High Definition audio voice quality. Call technology that carries voice data in a wider band of frequencies. More commonly referred to as 'HD Voice'.

wind noise reduction
Microphone technology that reduces the ambient noise created by wind.

Refers to a device that does not have cables and uses wireless technology, such as Bluetooth or DECT, to connect to an audio source such as a phone or music.

wireless charging enabled
Refers to a device's compatibility with wireless charging, where the device is charged by placing it on a charging pad which is connected to a power source. There is no need to connect the device to a cable to charge it.

wireless range
The maximum distance that there is wireless connectivity for a device. For example, the wireless range is 30 meters/100 feet.

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