No. 23 of 30 ·Network Protocol Analyzers

VoIPmonitor

Name: VoIPmonitor
Price: 22 USD

Web · Linux · Self-hosted · API · paid plans from $21.58/mo

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Freedom report

One barScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

VoIPmonitor is ranked #23 of 30 in network protocol analyzers on Freedom251. It runs on API, Linux, Self-hosted, Web. There is no free plan. A free trial is offered. Paid plans start at $21.58/mo.

VoIPmonitor plans and pricing

All plans

Cloud 3 channels $22/mo $22/mo 3 channels · Full features · CDR retention 21 days · PCAP stays on your server voipmonitor.org · 3 Oct 2026

On-Premise 10 channels $45/mo $45/mo 10 channels · Full features · 100% offline · Unlimited retention voipmonitor.org · 3 Oct 2026

Cloud 3 channels $259/yr $259/yr 3 channels · Full features · CDR retention 21 days · PCAP stays on your server voipmonitor.org · 3 Oct 2026

On-Premise 10 channels $539/yr $539/yr 10 channels · Full features · 100% offline · Unlimited retention voipmonitor.org · 3 Oct 2026

Compared on network protocol analyzers

Free plan: No
Paid from: $22/mo

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The record

Purpose: VoIPmonitor is an open-source packet sniffer with a commercial web GUI for monitoring, troubleshooting and recording VoIP/RTC calls.
Call quality: It reports call quality metrics including MOS, jitter, packet loss, delay and RTCP data.
Recording: The product supports call recording, SIPREC session recording and policy-based retention and deletion rules.
Troubleshooting: Its troubleshooting tools include packet captures, SIP ladder diagrams, audio waveforms, spectral analysis and TLS/SRTP decryption.
Analytics and alerts: The GUI provides dashboards, OLAP analytics, scheduled reports, KPI alerts and fraud detection rules.
Integrations: The site lists compatibility with Kamailio, OpenSIPS, FreeSWITCH, Asterisk, Cisco, Avaya, Genesys, Mitel, AudioCodes, Ribbon and Oracle SBC.
Protocols: Supported protocols listed include SIP, RTP, RTCP, SIPREC, SKINNY, MGCP, SS7, SCTP, WebRTC, Diameter, TCP, SSL and TLS.
Compliance controls: The site describes DTMF suppression and a pause/resume API to help prevent recording cardholder data, along with automated retention and deletion rules.
Deployment: The sniffer is a static binary that runs on Linux, and the maker lists builds for x86, ARM 32-bit and ARM 64-bit.
Cloud data limits: Cloud CDR retention is 21 days, PCAP stays on the customer server, and the listed maximum is 2,000 channels.
Support: Support is included with the WEB GUI license, and the maker lists free deployment assistance.
Intended users: The maker describes typical users as VoIP operators, call centres, enterprises, integrators and managed service providers.
Company: The maker says VoIPmonitor is developed and operated by Martin Vit as an independent software vendor based in the Czech Republic.
Founded: 2003
Price from: $21.58/mo

Where it ranks on Freedom251

Best Network Protocol Analyzers in 2026#23 of 30
Best VoIP Monitoring Software in 2026#17 of 20

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Sources

voipmonitor.org/about-us· checked 3 Oct 2026
voipmonitor.org· checked 3 Oct 2026
voipmonitor.org/download· checked 3 Oct 2026
voipmonitor.org/pricing· checked 3 Oct 2026