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What does a phone, soft phone or conference phone require to achieve HD Audio?

April 26, 2017achieve audio conference HD phone require soft

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What does a phone, soft phone or conference phone require to achieve HD Audio?

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These devices require a wideband audio codec including G.722, G.722.1, G.722.2, AAC-LD or a proprietary codec including iSAC and SVOPC. The hardware and software including echo cancellation in conference phones must also pass audio over 7 Kilohertz to benefit from the improved transmission quality.