Alerts

Alerts & Reports

Alerts & Reports generate email notifications based on QoS parameters or SIP error conditions. It includes daily reports, ad hoc reports, and stores all generated items in history.

Emails use PHP's "mail" function, relying on the server's MTA (e.g., Exim, Postfix, Sendmail). Configure MTA per your Linux distribution documentation.

Process alerts via a PHP script in crontab:

For CentOS & Debian:

echo "* * * * * root php /var/www/html/php/run.php cron" >> /etc/crontab

(Adjust path to run.php based on VoIPmonitor GUI installation.)

Reload crontab: killall -HUP cron (or crond).

Configure Alerts

Email alerts trigger on SIP protocol or RTP QoS metrics. Types: RTP alerts and SIP signaling.

Common filters: Call duration, IP addresses, numbers, and email recipients.

• RTP Alerts: Trigger on MOS, packet loss, jitter, delay, one-way calls (answered but one RTP stream missing), or missing RTP (answered but both streams missing). Alert if thresholds exceeded and incidents > set value or CDR percent > threshold.

• SIP Response Alerts: Trigger on SIP response codes. Empty response: All call attempts per filters. Response 0: Unreplied INVITEs.

• Sensors Alerts: Built-in alert type for monitoring the status and health of VoIPmonitor probes and sniffer instances. This is the most reliable method to check if remote sensors are online and actively monitoring traffic. Unlike simple network port monitoring (which may show a port is open even if the process is frozen or unresponsive), sensors alerts verify that the sensor instance is actively communicating with the VoIPmonitor GUI server. Configure sensors in Settings > Sensors, then create a sensors alert to be notified when a probe goes offline or becomes unresponsive.

• Filters:

 - IP/Number Group: Apply to defined groups (from Groups menu).
 - IP Addresses/Numbers: Individual IPs, numbers, or ranges (delimited by Enter).
 - Email Group: Send to group-defined emails.
 - Emails: Individual emails (delimited by Enter).

Sent Alerts

Sent alerts are saved in history, matching email content.

Parameters table shows QoS metrics with bad values highlighted.

CDR records table lists cases, with alert flags: (M)OS, (J)itter, (P)acket loss, (D)elay.

AI Summary for RAG

Summary: This article covers VoIPmonitor's Alerts & Reports for email notifications on QoS/SIP issues, daily/ad hoc reports, crontab setup, alert configuration (RTP/SIP/Sensors types, filters), and viewing sent alerts with metrics and CDR details.

Keywords: alerts, reports, email notifications, QoS metrics, SIP responses, crontab, RTP alerts, SIP alerts, sensors alerts, filters, history, MTA configuration

Key Questions:

• How do I set up email alerts in VoIPmonitor?
• What are the types of alerts (RTP vs. SIP vs. Sensors)?
• How do I configure crontab for alert processing?
• What filters can I use for alerts?
• How are sent alerts stored and viewed?
• What do alert flags in CDR mean?
• How do I monitor the status of remote VoIPmonitor sensors and probes?