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What is HD Voice?

HD Voice is any VoIP call that utilizes a “High Definition” codec. It is characterized by having more clear and accurate audio quality.

The most commonly accepted High Definition audio codec is G.722. There are others that have differing qualities and differing bandwidth requirements.

HD Voice is typically only available VoIP-to-VoIP or VoIP-to-Mobile-Carrier — even then many mobile carriers limit HD voice to Wi-Fi).

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