Witnio.
Messaging Assurance

Spam Label Monitor

See exactly what a real phone shows when your number calls — device, dialer and label, as captured.

  • spam_label
Coming soon
$129.00/mo
  • 1 corridor
  • 80% warning / 100% soft-stop overage policy, per plan
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01 — The problem

The problem

You have no visibility into how your number actually appears on the recipient's phone (label, dialer, version).

Who it is for

Any company that calls its own customers and suspects its number is being labeled as spam by some carriers/dialers.

02 — What you send us

What you send us

FieldFormatValidation
authorized_sendersArray, min 1: E.164 caller numbersNo wildcard/empty entries; count capped by your plan’s included_senders
dialer_packageAndroid package nameOptional — must match a valid Android package pattern
03 — What runs

What runs

  • The worker places a test call from the authorized number to a real receiving device with a known dialer, and captures the observed label exactly as shown (device, OS, dialer, dialer_version, observed_label, timestamp).
  • Fault profiles covered: network_loss, adb_loss, reboot, sim_anomaly, carrier_degraded, service_restart, evidence_upload_failure.
  • No probe is built yet for this new product — 0 real captures and 0 backtests today.
04 — What you get

What you get

json
{
  "status": "observed",
  "detail_json": { "device": "Pixel 6a", "os": "Android 13", "dialer": "com.google.android.dialer", "dialer_version": "112.0", "observed_label": "Possible Spam" },
  "screenshot_path": "evidence/2026-09-23/spam-label/run_5e2a.png",
  "failure_class": null,
  "recovery_actions_json": null,
  "evidence_signature_json": {
    "signature": "1d7f...9a",
    "algorithm": "Ed25519",
    "key_id": "witnio-run-ed25519-2026-09"
  },
  "ran_at": "2026-09-23T14:02:11Z"
}
  • One MonitorRun per incoming call
  • Evidence (dialer screen capture)
  • Alerts
  • Dashboard/API per plan
05 — Limits & quotas

Limits & quotas

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06 — Autonomy

Autonomy

Designed to run unattended per test call. Not yet measured: this is a new product with no probe built and zero qualified backtests or real captures yet — see Known limitations.

07 — Compliance

Compliance

Evidence

No publishable claim yet for this service — backtests and real-world evidence are still being measured. See Known limitations below.

Verify evidence

08 — Known limitations

Known limitations

  • New product: no probe, no backtests, no real-world sample yet.
  • The observed label depends on the exact dialer/OS/version used in the test — it does not automatically generalize to another device/dialer.
  • Can also be sold as an add-on inside SMS Assurance.
09 — FAQ
FAQ

Questions about this service

Not yet. No probe has been built for this product and no real-world sample exists, so it stays fail-closed until that changes.

Related guides

Ready for Spam Label Monitor?

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