Check if your network can handle business phone calls. Tests latency, jitter, and packet loss — the three metrics that actually determine call quality.
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Email Results →Time for a packet to travel from your network to a server and back. High latency causes noticeable delay — that awkward pause where you both start talking.
Variation in packet arrival timing. Even fast connections with high jitter produce choppy, robotic audio. This is the most common VoIP killer.
Percentage of data packets that never arrive. Even 1–2% loss causes audible gaps in speech. Above 5% and calls become unusable.