SolarWinds VoIP & Network Quality Manager vs VoIPmonitor

SolarWinds VoIP & Network Quality Manager (VNQM) is a self-hosted tool for monitoring VoIP calls and WAN performance. It tracks jitter, latency, packet loss, round-trip time, and mean opinion score, with synthetic call tests and SIP trunk monitoring. Call detail and management records help locate affected calls, inspect paths, review quality metrics, and identify common error codes. Real-time alerts trigger when user-defined quality or network thresholds are exceeded. VNQM monitors Cisco IP SLA and Juniper RPM operations between source and target devices with current and historical QoS metrics. Supported call managers include Cisco Unified Communications Manager, Cisco CallManager Express, and Avaya Communication and Media Server. It runs on the SolarWinds Platform with web and Windows access. The listed plan including VNQM costs $8 per month; VNQM does not support over six million calls monthly.

VoIPmonitor is an open-source packet sniffer paired with a commercial web GUI for monitoring, troubleshooting, and recording VoIP and RTC calls. It reports MOS, jitter, packet loss, delay, and RTCP data. Recording includes calls and SIPREC sessions, with policy-based retention and deletion rules. Troubleshooting tools provide packet captures, SIP ladder diagrams, audio waveforms, spectral analysis, and TLS/SRTP decryption. The GUI adds dashboards, OLAP analytics, scheduled reports, KPI alerts, and fraud-detection rules. Listed compatibility includes Kamailio, OpenSIPS, FreeSWITCH, Asterisk, Cisco, Avaya, Genesys, Mitel, AudioCodes, Ribbon, and Oracle SBC. Supported protocols include SIP, RTP, RTCP, SIPREC, SKINNY, MGCP, SS7, SCTP, WebRTC, Diameter, TCP, SSL, and TLS. The sniffer runs as a static Linux binary with x86 and ARM builds. Cloud CDR retention is 21 days, PCAP remains on the customer server, and the listed maximum is 2,000 channels. Cloud 3 channels costs $22 a month; On-Premise 10 channels costs $45 a month.