A Brief History of VoIP Phone Systems


Voice over internet protocol (VoIP) is a technology that allows you to make phone calls and other voice communications over the internet. While VoIP phone systems have become increasingly common in the last 10 to 20 years, the technology behind them has been around for nearly a century. Below, discover more about the fascinating history and evolution of VoIP.


In 1925, Bell Laboratories laid the groundwork for VoIP phone systems. Engineer Homer Dudley invented the first electronic voice synthesizer, called the Vocoder. The Vocoder was able to process and recreate the sounds of human speech. This was a precursor to modern-day data packet transmission, which records a voice on one phone and recreates it on another phone.


In 1969, the Department of Defense developed ARPANET, the first packet-switching network and one of the initial users of the then-pioneering internet protocol. Packet-switching transmits data independently over telephone networks, without a dedicated circuit needing a consistent connection between two active users. The ARPANET linked computers through modems at several sites around the country.


The mid-1970s saw great technological advancements that shaped the VoIP that is widely utilized today. In 1974, engineers sent the first voice test data packets over ARPANET using linear predictive coding, which analyzes, processes, and resynthesizes compressed digital forms of speech. 

In 1976, this breakthrough led to the first conference call between ARPANET users in different locations. Also, in the 1970s, CompuServe emerged as the only major internet provider, bringing the public one step closer to VoIP access.


In 1988, the G.722 wideband audio codec was released. This analog-to-digital converter had significantly better speech quality than earlier incarnations, and it could sample audio data twice as fast as other models. These considerations made it the perfect vector for VoIP communication. By the end of the decade, the first VoIP applications were ready to be released into the public domain—and into more widespread use.


Throughout the 1990s, VoIP continued to be refined and perfected. The emergence of dial-up internet connections made it possible for network subscribers to speak to one another using for-profit VoIP platforms. With the advent of the twenty-first century on the horizon, developers fine-tuned VoIP for a larger audience, and today, nearly one-third of all businesses use this revolutionary technology.

To experience the benefits of VoIP phone systems in your workplace, contact MyVoIP. Based in Ramsey, NJ, they serve clients throughout the United States and Canada. They provide a variety of VoIP services, including business phone systems, hosted fax solutions, and web and videoconferencing platforms. Call (833) 698-6471 to schedule a consultation or visit them online to browse their services. 

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