Measure response time and stability
Run a warm-up and 12 small round trips to Dadaphone. The tool exposes every sample, then reports median RTT, p95, adjacent variation, and failed requests.
What this tool checks
The test downloads a verified 1 KB response repeatedly over the current same-origin path and calculates its round-trip distribution. Lower and more consistent readings leave more room for natural audio.
What the latency result means
Latency is the time a small request takes to travel to Dadaphone and back. A lower value usually leaves more room for a natural conversation.
What the variation result means
The tool averages the absolute difference between adjacent HTTP round trips. Large swings can signal contention or a changing route, but this calculation must not be described as RTP jitter from a live media stream.
Transparent comfort thresholds
A run is labelled stable only when every sample completes, median RTT stays below 150 ms, average adjacent variation stays below 30 ms, and p95 stays below 250 ms. These are product guideposts, not a promise of end-to-end call quality.
Limits of this tool
This is HTTP round-trip timing, not RTP media jitter, packet loss, TURN performance, or carrier latency. A localhost run stays inside the local development path.
Questions before you call
Why can the result change between runs?
Wireless traffic, other devices, browser activity, and routing can all change from one moment to the next.
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