Alerts & Notifications

Eziwan sends real-time alerts for any event affecting your fleet—outage, low signal, failover, sensor value outside the threshold—via the channels of your choice.

List of Available Alerts​

Connectivity​

EventTriggerDefault Severity
Device offlineNo heartbeat for X minutes (configurable)Critical
Device back onlineReconnection after disconnectionInfo
Degraded LTE signalRSRP < threshold (default -95 dBm)Warning
Critical LTE signalRSRP < -105 dBmCritical
SIM failover enabledSwitched from SIM1 to SIM2Warning
SIM failover restoredBack to SIM1Info

Data Usage / SIM​

EventTriggerSeverity
Data quota nearly reached80% of monthly planWarning
Data quota exceeded100% of planCritical
Abnormal usage> X GB/day (configurable)Warning

RS485 / Modbus Sensors​

EventTriggerSeverity
Out-of-range valueModbus register < min or > maxConfigurable
Modbus slave missingRepeated timeout on a slave_idWarning
RS485 errorError rate > thresholdWarning
Null valueNULL return on critical registerCritical

Notification Channels​

ChannelPlansConfiguration
EmailAll plansUnlimited, HTML + text format
SMSGrowth, Scale, EnterpriseUp to 500/month (Scale)
WebhookAll plansJSON POST to your endpoint
SlackAll plansVia incoming Slack webhook
Microsoft TeamsAll plansVia Teams webhook
PagerDutyGrowth, ScaleNative integration, routing included

Webhook Payload Format​

{
  "event": "device.offline",
  "severity": "critical",
  "timestamp": "2025-06-15T02:14:33.412Z",
  "device": {
    "id": "d_a1b2c3d4",
    "name": "GW-Valenciennes-03",
    "group": "Région Nord / Site Valenciennes",
    "tags": ["env:production", "criticite:haute"]
  },
  "detail": {
    "last_seen": "2025-06-15T02:12:01.000Z",
    "sim_active": 2,
    "rsrp_dbm": -108
  },
  "dashboard_url": "https://app.eziwan.com/devices/d_a1b2c3d4"
}

Each webhook is signed with X-Eziwan-Signature: hmac-sha256=... for server-side verification.

Set Up an Alert Rule​

Dashboard → Alerts → New Rule

Steps​

  1. Targets: Select one or more devices, groups, or tags

    • Example: "All devices with the tag criticite:haute"

  2. Event: Select the alert type and thresholds

    • Example: "RSRP < -100 dBm for more than 60 seconds"

  3. Channel: email, SMS, webhook, Slack…

    • Multiple channels can be used simultaneously

  4. Escalation: If the alert is not acknowledged, escalate it after X minutes

    • Example: Immediate email → SMS after 15 minutes if not acknowledged

  5. Anti-rebound (optional): minimum time interval between two alerts of the same type to prevent spam

    • Example: at least 30 minutes between two "Low Signal" alerts from the same device

Maintenance/Silent Mode​

For scheduled operations, avoid false alarms:

Temporary Silence​

Device → Actions → Maintenance Mode → Duration: 2 hours

Recurring Window​

Set up a recurring quiet time slot (e.g., overnight updates):

Alert Rule → Quiet Windows
→ Every Sunday from 2:00 a.m. to 4:00 a.m.
→ Holidays (French calendar)

Events are logged even during the silent period, but notifications are not sent.

Dismissal and Resolution​

In the Alerts → Active dashboard:

  • Acknowledge: "I'm aware of this; I'm handling it" — stops the issue from escalating
  • Resolve: "Issue resolved" — closes the ticket with a comment
  • False alarm: excludes this event from uptime statistics

Each action is time-stamped and linked to the user for traceability.

ITSM Integration

Eziwan alerts can automatically create tickets in Jira, ServiceNow, or your ITSM system via webhooks. See the REST API →

Support Info

support@eziwan.com — Mon–Fri 9 a.m.–6 p.m., response time < 4 hours. 24/7 emergency support for Pro+ plans.

Schedule a demo →

Frequently Asked Questions​

How can I get notified when a site loses its 4G connection?​

Create a "disconnection" alert for the relevant site group: as soon as the gateway stops responding to the heartbeat, a notification is sent via email, SMS, or webhook, including the context (last signal, SIM status, uptime). The typical detection time is less than 2 minutes.

What notification channels are available?​

Email, SMS, Slack, and HTTP webhooks. Webhooks allow you to automatically create tickets in your ITSM (ServiceNow, Jira) or trigger workflows in your existing monitoring system.

How can you avoid false alerts on an unstable 4G connection?​

Use thresholds with hysteresis and time delay: a low-signal alert is triggered only if the RSRP remains below the threshold for the configured duration. Normal brief cellular signal interruptions will no longer generate false alarms.

Can we receive an alert based on a Modbus sensor reading?​

Yes: Each Modbus register collected can have high/low thresholds (e.g., temperature, pressure, level). The alert includes the measured value and recent history to facilitate troubleshooting.