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What is VoIP Phone System and How Does it Work?

Updated: Mar 9, 2023

How VoIP Works

VoIP is quickly overtaking other forms of communication as the most widely used on the planet. Even if you know very little about VoIP Phone System Charlotte or nothing at all, you must immediately learn how it functions and what it means for your company.

VoIP, or voice over internet protocol, is a technique that converts analog voice signals into digital data so that we may use our internet connections to make phone and video calls, among other things. By doing this, we can benefit from substantially cheaper phone rates and line rental.

VoIP Definition: What Is VoIP?

VoIP, Voice over IP, and IP telephony are several names for "Voice over Internet Protocol." It is a methodology that combines a number of related technologies that are all used to transmit speech and media via Internet Protocol (IP) networks, such as fax, SMS, and audio and video conversations. As opposed to the public switched telephone network (PSTN), which has historically been used for such communications, VoIP explicitly refers to communications services that take place over the open Internet.

How does VoIP work?

VoIP: Codecs

Your voice must be encoded into digital data when using VoIP to make phone calls over the internet, and that digital data must then be re-coded into voice signals on the other end of the call. Codecs are used to carry out this encoding-decoding process. Codecs make sure that the data is compressed so that it may be transmitted more quickly, improving the call quality.

Because VoIP employs digital signals instead of analogue data like traditional PSTN phone conversations do, codecs are necessary. The analogue speech data is encoded using codecs to create digital signals that can be transmitted over the internet. The digital signal will be decoded back into its analog form when it gets to its destination, allowing the person on the other end of the connection to hear and comprehend it.

Even though the concept of digital speech data and codecs may sound challenging, just imagine the procedure as an email. The data (your voice) has a destination just like an email. Your speech is "encoded" (transformed into a code) so that it can travel over the internet. In order for the person you are contacting to comprehend what you said, the code is translated into the sound of your voice at the other end (decoded).

Your phone call will travel entirely over the internet if you and the person you are calling both use VoIP. The call moves to the public phone network to reach its destination if they are utilizing the traditional network after traveling as far as it can be via VoIP. The same thing occurs if you use a traditional phone and a VoIP service calls you, only that the direction of travel is reversed.

While there are many benefits to switching to VoIP, the low cost and increased flexibility are driving an increasing number of Australian firms to make the switch.

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