Jump To:

• VoIP
  VoIP

  noun

  voice over Internet Protocol: a technology or set of standards for delivery of telephone calls and other voice communications over the internet, involving conversion of analog voice signals to digital form.
• voip
  voip

  noun

  voice-over internet protocol: a system for converting analogue signals to digital so that telephone calls may be made over the internet

VoIP

American  

[voip] / vɔɪp /

noun

Digital Technology.

1. voice over Internet Protocol: a technology or set of standards for delivery of telephone calls and other voice communications over the internet, involving conversion of analog voice signals to digital form.

---

voip British  

/ vɔɪp /

noun

1. informal voice-over internet protocol: a system for converting analogue signals to digital so that telephone calls may be made over the internet

---

VoIP Scientific  

/ voip,vē′ō′ī′pē′ /

1. Short for Voice over Internet Protocol. A protocol for transmitting the human voice in digital form over the Internet or other networks as an audio stream, instead of using traditional telephone lines. VoIP uses the Internet Protocol (IP), but is not limited to communication by computer—even phone-to-phone communication can be conducted using this technology.

---

Etymology

Origin of VoIP

First recorded in 1995–2000

Example Sentences

Brahmbhatt’s companies primarily engaged in what’s known as wholesale VoIP termination, the business of routing a high volume of phone calls to the correct destination over the internet, according to court records and their websites.

From The Wall Street Journal • Feb. 11, 2026

Alerts went out to people with landlines because their numbers are automatically enrolled in the system and those with cellphones and VoIP phones who enrolled online, Boulder County Sheriff Joe Pelle said.

From Seattle Times • Jan. 4, 2022

He adds that right now, it is up to the VoIP provider to check whether the calls it is handing over to telecoms networks are actually legitimate.

From BBC • Oct. 24, 2021

Several acknowledged they celebrated just a bit when the telephone companies gradually abandoned old-fashioned circuit-switching for what was called “Voice Over IP” or VoIP.

From Washington Post • Apr. 6, 2020

You can either contact your local phone company about installing a dedicate landline for your fax, or you can get a VoIP service that will set up an Internet phone line for you.

From Encyclopedia.com • Feb. 5, 2018