Started by arjanhs, January 12, 2012, 11:22:54 am
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QuoteThis paper evaluated VoIP performance using a commercial media server to demonstrate that vSphere 5 is readily able to host VoIP service, delivering excellent out-of-the-box VoIP performance. To compare voice quality of different configurations, jitter was used as the main metric that describes the timeliness of voice packet arrival. The evaluation results demonstrated that good voice quality was maintained when the number of users (number of voice streams) and media server instance increased, while fully utilizing CPU. For example, vSphere 5 was able to maintain great VoIP performance even when running 12 instances of VoIP media server configured with a total 48 vCPUs on a system with 8 cores. It is further shown that the NetIOC feature was able to prevent packet loss successfully, thereby helping to preserve voice quality under severe contention for network.
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