Key VoIP Acronyms and Definitions

Book of VoIP terms and acronymsNew acronyms and definitions are constantly emerging in telecom. Individuals beginning their research into a VoIP system for their business can quickly become overwhelmed with all of the technical jargon out there. VoIP is an acronym itself, so you need to learn new lingo right from the start.

If you read our blog, you know that we write in a simplified style and try to explain telecom terms as we use them. However, I’m sure we’ve missed a few here and there so we thought it might be helpful to list some of the most common terms used in VoIP.

List of terms used in VoIP

VoIP: Voice over Internet Protocol. Voice and data that is transmitted over a network.

ATA: Analog Telephone Adapter. Allows for the connection of legacy devices to a VoIP system.

Auto Attendant: An automatic response system which receives key commands to handle incoming calls.

BYOD: Bring Your Own Device. VoIP providers sometimes allow a person to supply their own equipment or ATA.

Codec: The way which your analog voice information is broken down from your handset and into digital packets.

CDR: Call Detail Recording. Details about a specific call that includes duration, origin, destination, and other information.

DHCP: Dynamic Host Control Protocol. A communication protocol that lets network admins supervise and distribute IP addresses from a central point.

DID: Direct Inward Dialing. A service that allows individual phone numbers to each person within a local network.

Echo Cancellation: The process of eliminating echo from voice communication to improve quality.

IP: Internet Protocol. A virtual address for devices.

IP PBX: A VoIP version of a public branch exchange that allows for extensions and call control.

ITSP: Internet Telephone Service Provider. A company which offers telecommunication services based on VoIP.

IVR: Interactive Voice Response. Software which allows for an automatic operator to understand and assist callers.

Jitter: Variation in the time it takes for packets to travel from one point to the other.

Latency: The time it takes for a packet to reach its destination. Usually communicated in milliseconds.

MAC Address: Media Access Control Address. A unique identifier assigned to network interfaces for communications at the data link layer of a network segment.

PoE: Power over Ethernet. Power that is delivered to a device over an Ethernet cable as opposed to a traditional power adapter.

POTS: Plain Old Telephone Service. Your traditional legacy service.

Protocol: The way which your voice data packet is sent across your IP network. The most common being SIP.

PSTN: Public Switched Telephone Network. The network of local, international, and long-distance carriers which make up the traditional telephone network.

SIP: Session Initiation Protocol. The most common protocol used for VoIP.

SIP Trunking: The use of VoIP to facilitate the connection of a traditional PBX to the Internet. The Internet replaces the conventional telephone trunk, allowing a business to communicate with a traditional PSTN subscriber.

Softphone: IP telephone which is run over software rather than a hardware desk phone.

STUN: Simple Transversal of UDP through NATs. A protocol for assisting devices behind a NAT firewall or router.

Switch: A device which keeps a record of the MAC addresses of all devices connected to it and channels incoming data from all incoming ports to a specific outgoing port.

Which VoIP terms do you find difficult to understand? Do you have other acronyms or definitions that you think we should add to our list? Let us know.

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One Comment
  1. If you find yourself wondering about Centrex, POTS, VoIP, PBX, PRIs and Voice Mail servers, you may be shopping for a new business phone system. Those are just a few terms that get thrown around when you’re looking to upgrade or install a new system. business phone system acronyms definitions. These term will help you to deal with a VoIP service provider.

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