VoIPmonitor

What VoIPmonitor is

VoIPmonitor is a VoIP and RTC monitoring platform built around an open-source packet sniffer and a commercial web GUI. It captures call traffic and reports quality measures such as MOS, jitter, packet loss, delay and RTCP data. Recording options include calls and SIPREC sessions, with rules for retaining and deleting recordings. For investigation, the GUI brings together packet captures, SIP ladder diagrams, audio waveforms, spectral analysis and TLS/SRTP decryption. Dashboards, OLAP analytics, scheduled reports, KPI alerts and fraud detection rules support ongoing monitoring. The listed protocols include SIP, RTP, RTCP, SIPREC, WebRTC, SS7, SCTP, Diameter, TCP, SSL and TLS; compatible systems include Kamailio, OpenSIPS, FreeSWITCH, Asterisk, Cisco, Avaya, Genesys, Mitel, AudioCodes, Ribbon and Oracle SBC. The sniffer runs as a static Linux binary, with x86 and ARM builds. Cloud service starts at $22/mo for three channels. Its cloud CDR retention is 21 days, PCAP remains on the customer server, and the listed maximum is 2,000 channels. An on-premise 10-channel plan costs $45/mo and includes unlimited retention.

Who it suits

VoIP operators, call centres, enterprises, integrators and managed service providers can use it to monitor call quality, investigate traffic and manage recordings. It also suits teams that need packet-level tools alongside dashboards, alerts and fraud rules.

Limits

The $22/mo cloud plan covers three channels, retains CDR data for 21 days and keeps PCAP on the customer server. The $45/mo on-premise plan covers 10 channels and has unlimited retention.

Getting started

1. Open the VoIPmonitor website.
2. Choose the cloud plan or the on-premise plan.
3. For on-premise deployment, run the static sniffer binary on Linux.
4. Select a supported build for x86, ARM 32-bit or ARM 64-bit.
5. Use the WEB GUI license for the interface and included support.

Verdict

Choose VoIPmonitor if call-quality metrics, detailed traffic troubleshooting and recording controls are central to your VoIP operations. Look elsewhere if you need a free plan or cloud PCAP storage, since cloud PCAP remains on your server.