Forensic Troubleshooting Toolkit

Your ultimate debugging toolkit. Go from customer complaint to root-cause in seconds. Drill down into any call with full SIP/RTP visibility, decrypt encrypted traffic, and export clean evidence for disputes and escalations.

Packet-Level Evidence

  • Full SIP/RTP PCAPs - Access complete packet captures for any call
  • Export to Wireshark - Download clean PCAPs for external tools
  • Filtered Captures - Extract specific streams or time ranges

Signaling Analysis

Visualize and inspect the complete SIP message flow with interactive ladder diagrams.

  • Ladder Diagrams - Interactive message sequence diagrams showing call flow
  • Full SIP Headers - Every INVITE, BYE, and response with complete headers and SDP
  • Timing Analysis - Identify delays between messages

Audio Analysis

Play back calls with visual waveform display and spectral analyzer. Identify audio issues at a glance.

  • Waveform Display - Visual representation of audio streams
  • Spectral Analysis - Frequency domain view to identify noise, echo, or codec issues
  • Silence & Clipping Detection - Automatic detection of one-way audio and clipping
  • Audio Reconstruction - Convert RTP streams to WAV/OGG/MP3 for playback

T.38 FAX Analysis

Convert captured T.38 FAX transmissions to readable PDF documents. Troubleshoot FAX failures by inspecting the complete T.38 session.

Encryption Support

  • TLS Decryption - Decrypt SIP-TLS when keys are provided
  • SRTP Decryption - Decrypt secure RTP streams for audio analysis
  • SRTP Error Detection - Identify encryption/decryption failures and mismatches

Sharing & Collaboration

Share complete call records for collaborative troubleshooting with vendors, partners, or legal teams:

  • Share via Your GUI - Generate shareable links within your own VoIPmonitor instance
  • share.voipmonitor.org - Upload CDRs to our public sharing platform for collaboration with external parties
  • Data Anonymization - Automatically anonymize sensitive data (phone numbers, IPs) before sharing

Reproducible Results & Evidence Export

All analysis is based on stored PCAPs, ensuring results can be reproduced and verified at any time. Export complete evidence packages for SLA disputes, legal proceedings, or compliance audits.