sip-exporter vs Sipfront Probe

sip-exporter is a free, open-source Linux and self-hosted eBPF sensor for SIP and correlated RTP monitoring. It exposes Prometheus metrics at /metrics, including SIP traffic, active sessions, RFC 6076 performance, voice quality, RTP, RTCP, fraud, and diagnostic measures. RTP analysis covers jitter, packet loss, packet-delay variation, and E-model MOS; RTCP sender and receiver statistics include loss, jitter, and round-trip time linked by SSRC. Documented fraud indicators include registration scans, INVITE bursts, account takeover after a registration country change, and False Answer Supervision. A Grafana dashboard has 11 sections, with Prometheus alert examples and Alertmanager examples for Slack, PagerDuty, and email. Metrics are documented for Prometheus, VictoriaMetrics, Grafana Cloud, and compatible scrapers. Deployment uses a single container that must run privileged with host networking. Capture is limited to IPv4/UDP SIP and related RTP/RTCP, and the sensor must see signaling and media on the same call path.

Sipfront Probe has no write-up on Specifiction yet; its figures are above.