correct participating endpoints. Latency In contrast to broadcast-type media transmission (RealAudio, for instance), latency in a two-way phone conversation can be very undesirable. 150ms is the specified maximum desired one-way latency to achieve high-quality voice. Voice users will notice round-trip delays that exceed 250ms. More than that, and callers start talking over each other. At anything beyond 500ms phone calls are no longer practical. It would be like asking a question
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