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Evaluating a mobile handset's performance using voice quality measurement provides insightful understanding of overall handset performance and user-experience. When performed in a live network setting, voice quality measurement offers the advantage of exercising both the radio subsystem and baseband processing subsystem for a mobile handset. This contrasts with testing that measures bit error rate and/or frame error rate and focuses on exercising only the radio subsystem. The baseband processing subsystem performance, including the voice codec and related voice processing, has been found to vary across mobile handset models; resulting in a varied user experience.
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