VirtualPBX Answers: How Does an Internet Phone Call Work?

Internet Phone CallPlacing a phone call is pretty straightforward and something that most people probably don’t think twice about. With the advent of the digital age, placing an internet phone call is becoming more common and, although the end result is the exact same as with a traditional call, many people question the mechanics behind how this works. And because plenty of our readers have asked us on either Facebook or Twitter exactly what an internet phone call is and how it works, we’ve decided to address the topic in this latest edition of VirtualPBX Answers.

What is an Internet Phone Call?

In its most simplistic terms, an internet phone call can refer to any type of voice communications that don’t rely on traditional copper-wired telephone line infrastructure. This means that an internet phone call is a voice connection that relies on data connections over the world wide web to connect two parties. This is where it gets a bit nuanced, but there’s a difference between an internet phone call and other voice connections. Connections that link parties via actual phone numbers require a particular set of technologies, and this blog will focus on those. Conversations that occur between phone numbers will always need to interact with the PSTN (Public Switched Telephone Network) regardless of if they are antiquated wired phone calls or modern internet phone calls. Picturing the PSTN as a massive switchboard that directs traffic to all known telephone numbers may be a bit difficult to conceptualize, but it’s an accurate summation of what it does. Older analog telephone calls route through wires into PBX’s (Private Branch Exchange) that are like sub-stations for the PSTN and can be either on-site (for corporations, perhaps) or installed as intermediaries by a telephone company (in neighborhoods or apartment complexes, for example). The call is then routed from the PBX to wherever the destination is located via a series of wires and PBX locations along the way. An internet phone call does something identical in result with a fraction of the logistics.

How Does an Internet Phone Call Work?

An internet phone call relies on converting the audio of a phone call into packets of digital information that it will transmit over data connections. These packets travel into a virtual PBX, which is a digital facsimile of the aforementioned PBX, but it is entirely hosted in the cloud. The audio is then ushered to its destination form the hosted PBX to the PSTN and thereby the internet phone call is connected to the desired telephone number. The name for voice connections that use this method is Voice Over Internet Protocol, commonly referred to simply as VoIP.

What is the Advantage of an Internet Phone Call?

There are a variety of benefits for using VoIP and internet phone calls over traditional means, most of which are immediately apparent in a monthly telephone bill. The cost savings of VoIP over a traditional phone service can be staggering, too, when organizations with more complex needs like call routing, ACD queues, and call recording are present. However, even simple phone plans for individuals are routinely more affordable over VoIP, as well. Additionally, the fact that internet phone calls require no physical equipment or on-site engineering know-how to operate makes their flexibility, adaptability, customization options, and scalability the hands down winner over older, copper-wire telephone options. Not to mention the fact that with advanced WebRTC (Web-based real-time communications) options becoming more popular, there are even free web phones that operate perfectly from any modern web browser, too. To find out how much your business would benefit from a new VoIP service, simply compare your telephone bill with one of these Award-Winning VoIP Plans from VirtualPBX.

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