NoMYST Pulse · Link quality
Pulse stimulates, observes and explains the defects that impair voice, video calls and real-time traffic — even when a speed test looks reassuring.
NoMYST Pulse is an Android app that measures the real quality of a link for voice and video: latency, jitter, loss and micro-outages, before and during load, with a probable cause.
Voice quality, throughput and latency share the same timeline. Here, voice holds up during the download load (R 87), then drops to R 63 as soon as the phone starts sending: the uplink is what saturates.
The summary scores each phase (idle, download load, upload load, recovery) and counts dropouts. Here Pulse concludes the link saturates under load: the charts show the symptom and when it appears; the diagnosis guides the next check.
In a business premises, calls over Wi-Fi kept cutting out while throughput looked normal. Pulse measured 2.2% packet loss at rest, Scout showed a Wi-Fi printer on the access point's channel, and the measurement after the fix gave a voice score of 94/100 with no loss.
Read the full case →Pulse does more than display charts. It relates symptoms to the moment they appear. High jitter at idle does not tell the same story as deterioration caused only by load.
The report separates observations, likely origin and verification steps. When the evidence is insufficient, it says so explicitly.
| Compared with… | What Pulse brings | What the other tool keeps |
|---|---|---|
| A speed test | Pulse measures what makes a good conversation: regularity, loss, micro-outages, and how those values move when traffic appears. 503 Mbps with a voice score of 52/100 is a real Pulse result. | The speed test remains useful to check a subscription or raw capacity. |
| A ping | Ping gives an average latency. Pulse reads it over time, with its jitter, on three synchronised charts, alongside the perceived voice quality. | A one-off ping is enough to know whether a host answers. |
| A monitoring probe | Pulse starts in seconds where the problem is reported, with nothing to install or host at the customer's site. | A permanent probe remains the right tool to watch a link around the clock and raise alerts. |
Because throughput and conversation do not depend on the same things. During the transfer, latency became very irregular and voice quality collapsed: the link had capacity, but no regularity.
Rest: the link before any load. Ramp-up: does quality degrade when traffic appears? Sustained load: stability over time. Back to rest: does the link return to its initial state?
To the NoMYST echo server (echo.nomyst.com), operated by MPI in France, or to a measurement server you designate. Test packets contain no personal data.
Yes. Pulse measures the link the phone is using: mobile network, Wi-Fi, or Ethernet through a USB adapter. That is how it verifies a local network after an intervention.
It is a perceived-quality score computed from latency, jitter and loss, in the spirit of the ITU-T G.107 E-model. It is comparable from one Pulse measurement to the next; it is not a standardised subjective measurement.